Control system for microgrid

Control system for microgrid Abstract In this study an example of a microgrid composed of diesel generator and two uninterruptable power supply systems is considered. This microgrid installed in the three buildings of the Tallinn University of Technology. This paper deals with how to implement a distributed control and monitoring system based on the Ethernet network in the microgrid. The paper describes a control strategy to implement both grid connected and islanded operation modes of the microgrid. Keywords Control system, diesel generator, microgrid Introduction Distributed generation (DG) is becoming an increasingly attractive approach to reduce greenhouse gas emissions, to improve power system efficiency and reliability, and to relieve todays stress on power transmission and distribution infrastructure [1]. Distributed generation encompasses a wide range of prime mover technologies, such as internal combustion engines, gas turbines, microturbines, photovoltaic, fuel cells and windpower [32]. A better way to realize the emerging potential of DG is to take a system approach which views generation and associated loads as a microgrid [21]. Microgrid is a concept of defining the operation of distributed generation, in which different microsources operate as s single controllable system that provides power and heat to a cluster of loads in the local area [3], [8] [9]. A well designed microgrid should appear as an independent power system meeting the power quality and reliability requirements [3]. The primary goal of microgrid architectures is to significantly improve energy production and delivery to load customers, while facilitating a more stable electrical infrastructure with a measurable reduction in environmental emissions [10]. The most positive features of microgrids are the relatively short distances between generation and loads and low generation and distribution voltage level. The main function of a microgrid is to ensure stable operation during faults and various network disturbances. The microgrid is a promising concept in several fronts because it [18]: provides means to modernize todays power grids by making it more reliable, secure, efficient, and de-centralized; provides systematic approaches to utilize diverse and distributed energy sources for distributed generation; provides uninterruptible power supply functions; minimizes emissions and system losses. Despite many advantages of microgrid there remain many technical challenges and difficulties in this new power industry area. One of them is the design, acceptance, and availability of low-cost technologies for installing and using microgrids [4]. The increased deployment of power electronic devices in alternative energy sources within microgrids requires effective monitoring and control systems for safe and stable operation while achieving optimal utilization of different energy sources [35]. Microgeneration suffers from lack of experience, regulations and norms. Because of specific characteristics of microgrids, such as high implication of control components, large number of microsources with power electronic interfaces remains many difficulties in controlling of microgrids. Realization of complicated controlling processes in microgrids requires specific communication infrastructure and protocols. During the process of microgrid organization many questions concerning the protection and safety aspects emerge. Also, it is required to organize free access to the network and efficient allocation of network costs. The predominant existing distributed generation is based on an internal combustion engine driving an electric generator [36]. To investigate various aspects of integration of alternative energy sources such as conventional engine generators, this paper proposes a prototype of the microgrid for three academic buildings at the Tallinn University of Technology which consists of a diesel generator, and batteries storage with power electronic interface. The main goal of this work is to design an intelligent control system of the microgrid that is efficient enough to manage itself for power balance by making use of state of the art communication technology. Moreover, the aim of this paper is to describe the control strategy of the microgrid operation in both stagy state modes. This control system enables the microgrid system to balance the electric power demand and supply and to simultaneously control the state of power network. Microgrid Theoretical Background A microgrid is described as a small (several MW or less in scale) power system with three primary components: distributed generators with optional storage capacity, autonomous load centers, and system capability to operate interconnected with or islanded from the larger utility electrical grid [10], [11]-[13]. According to [39], [22], multiple facility microgrids span multiple buildings or structures, with loads typically ranging between 2MW and 5MW. Examples include campuses (medical, academic, municipal, etc), military bases, industrial and commercial complexes, and building residential developments. Microgrids include several basic components for operation [3], [4]. An example of a microgrid with is illustrated in Fig.1. Distributed Generation Distributed generation units [1] are small sources of energy located at or near the point of use. There are two basic classes of microsources; one is a DC source (fuel cells, photovoltaic cells, etc.), the other is a high frequency AC source (microturbines, reciprocating engine generators, wind generators), which needs to be rectified. An AC microgrid can be a single-phase or a three-phase system. It can be connected to low voltage or medium voltage power distribution networks. Storage Devices Distributed storage technologies are used in microgrid applications where the generation and loads of the microgrid cannot be exactly matched. Distributed storage provides a bridge in meeting the power and energy requirements of the microgrid. Distributed storage enhances microgrid systems overall performance in three ways. First, it stabilizes and permits DG units to run at a constant and stable output, despite load fluctuations. Second, it provides the ride through capability when there are dynamic variations of primary energy (such as those of sun, wind, and hydropower sources). Third, it permits DG to seamlessly operate as a dispatchable unit. Moreover, energy storage can benefit power systems by damping peak surges in electricity demand, countering momentary power disturbances, providing outage ridethrough while backup generators respond, and reserving energy for future demand. There are several forms of energy storage, such as the batteries, supercapacitors, and flywheels. Interconnection Switch The interconnection switch is the point of connection between the microgrid and the rest of the distribution system. New technologies in this area consolidate the various power and switching functions (power switching, protective relaying, metering, and communications) traditionally provided by relays, hardware, and other components at the utility interface into a single system with a digital signal processor. The interconnection switches are designed to meet grid interconnection standards. Control System The control system of a microgrid is designed to safely operate the system in grid-parallel and stand-alone modes. This system may be based on a central controller or imbedded as autonomous parts of each distributed generator. When the utility is disconnected, the control system must control the local voltage and frequency, provide (or absorb) the instantaneous real power difference between generation and loads, provide the difference between generated reactive power and the actual reactive power consumed by the load, and protect the internal microgrid. Structure of the Proposed Microgrid The microgrid installed in three buildings of the Tallinn University of Technology (TUT): Faculty of Power Engineering, TUT Library, School of Economics and Business Administration. Consequently, according to the classification given in [22], this power system can be defined as a multiple facility microgrid. Fig.2 illustrates the various components of the power system of the microgrid at TUT. The structure of the microgtid for the campuses of the TUT is proposed. Fig.3 shows a schematic of the power system. Microgrid systems targeted in this study are autonomous areas having the power demand of several kilowatts including a diesel generator, two uninterruptable power supply (UPS) systems with batteries storage, and loads. They are connected to the power electronic interface forming local AC network with 230V, 50Hz. The diesel generator is used as the main distributed energy resource in this microgrid. It has a nominal power of 176kW/220kVA, voltage of 240V/400V and maximum current of 318A. This generator is connected to the AC bus via the automatic relay logic (ARL2). The ARL2 is continuously observing it both sides: the main grid and the microgrid. If there is a fault in the general grid, the ARL2 will disconnect the microgrid, creating an energetic island. The battery banks (E1 and E2) are used as the distributed energy storage devices in the microgrid to insure continuous supply of the local load. They are interfaced to the electrical network through the two UPS systems: UPS1 (160kVA), and UPS2 (240kVA). Hence, we can conclude that the microgrid has two main possible operation modes: grid-connected and islanded mode. Main customers of the microgrid are the computers and servers located in the laboratories and office rooms in the three buildings of TUT. The clients in the Library Building (computers) are interfaced to the electrical network using ARL1. In addition, four experimental loads (Experimental loads 1..4) are used that can be connected to the distributed shield located in the Laboratory of Electrical Drives. The nine intelligent sensors (P1..P9) assign these loads. Their task is to measure electrical power and energy parameters of the network, such as voltage, current, power, energy, power factor and transmit this information to the controller. The microgrid is connected to the general city electricity grid using two two-section transformer substations (6000kV/400kV) located in the Faculty of Power Engineering and the School of Economics and Business Administration Buildings. Description of the Control System Taking into account the configuration and features of the power network of the Tallinn University of Technology, the control system structure for the microgrid is designed with the following specifications: the balance of electric power demand and supply of power network are provided; both the steady state modes and the transient performance of the microgrid are achieved. A block diagram of the hierarchical control system which is based on the multiagent technology [40], [41], is demonstrated in Fig.4. The design of the control system can be divided into hardware and software. The control structure of the microgrid has three levels: Operator console and application server; Central controller (CC); Local controllers (LC) and measuring devices. Operator console is a computerized workstation with special software which comprises of supply and demand calculation units, monitoring units, control schemes and dispatching units. The function block diagram of the software is shown in Fig.5. The operator console heads the hierarchical control system. Its main goals of are: to keep track of the whole system by monitoring the status of the communication nodes and generating units; to collect data from the measuring devices; to calculate supply and demand of power; to visualize information received; to display the basic modes of the microgrid; and to transfer control commands to the central controller. Application server is designed for archiving data received from the measuring devices. The main interface between the operator console and others communication nodes of the microgrid control system is the central controller. It is the main responsible for the management of the microgrid. for the optimization of the microgrid operation. The central controller operates in real time. Its main functions are: connection and disconnection of the microgrid, the synchronization process, the detachment of loads. In addition, the aims of the central controller are: to collect information from the measuring devices; to transfer data from the operator console and the application server; to manage the power supply switches; and to transmit the control commands to the local controllers. Group of the local controllers are related to the third hierarchical control level. They include microsource controller that located in the distributed resources of the microgrid. It manages active and reactive power production levels at the diesel generator. Moreover, the microsource controller is responsible for the maintaining desired steady-state and dynamic performance of the power network. The other local controllers are located in the two UPS systems. Their main goals are to provide management of charge of the batteries storage. Measuring process Information required by the proposed monitoring and control system is voltage, current, power, energy, and power factor measurements. Real-time information is acquired through the intelligent measuring devices located at the output of the energy source, at the input of each loads, and at the both UPS systems. In this system, Allen-Bradley Powermonitor 3000 [25] is used to measure these instantaneous values. It implements real-time power monitoring with 50 ms selectable update rate. Such operating information is displayed in real-time for monitoring and energy management purposes. Communication network A communication infrastructure is needed between the central controller and the local controllers [23]. The short geographical span of the microgrid may aid establishing a communication infrastructure using low-cost communications. The adoption of standard protocols and open technologies allows designing and developing modular solutions using off-the-shelf, low-cost, widely available, and fully supported hardware and software components. At the present time, many low cost microcontrollers include at least an Ethernet controller, standalone cheap controllers are also available. The main advantages of using Ethernet are: the transition from a centralized control to a distributed control; wiring reduction no need for point to point connections. This solution provides flexibility and scalability for low-cost implementations. Taking these into account, the Ethernet industrial protocol has been chosen in this microgrid as communication network for data transfer for all those control units. The amount of data to be exchanged between network controllers includes mainly messages containing set-points to LC, information requests sent by the MGCC to LC about active and reactive powers, and voltage levels and messages to control microgrid switches. The LC is responsible of collecting local information from the attached energy resource and takes some real-time decisions based on the control algorithm. The communication network of the control system is illustrated in Fig.6. Every communication node has to get registered to the master server. The node sends its information to the master server through diverse communication channel. Furthermore, this topology provides an opportunity for immediate control center access via remote consoles and web based laptops for necessary actions to be taken. To include new generation resources or storage devices in a flexible manner into the microgrid, multi-agent technologies [40] might be applied. The proposed hierarchical control scheme provides a flexible platform to make high level decisions. Control Strategy of Operation of the Microgrid A microgrid may operate either connected to the main grid or disconnected from it. There are two steady states of operation, grid-connected (Mode-G) and islanded (Mode-I). Furthermore, there are two transient modes of operation, transfer from Mode-G to Mode-I and transfer from Mode-I to Mode-G. The key issue of the control is how to maintain the voltage and frequency stability of the microgrid [20]. Grid-connected mode In the grid-connected operation mode, the main function of a DG unit is to control the output real and reactive power. The real and reactive power generated by a DG can be controlled through current or voltage regulation, thus the DG output power control schemes can be generally categorized as current-based and voltage-based power flow control [43]. During Mode-G operation, the voltage and frequency of the microgrid is set by the main grid. The aim of the uninterruptible power supply systems is to obtain energy backup as much as possible, so during Mode-G operation, the main grid, the microgrid or both of them, will charge the batteries [20]. In grid-connected mode the balance between the generation and the consumption as well as the control of the parameters of the system is guaranteed by the utility grid. Thus, generators are regulated with the criterion of optimized economic exploitation of the installation [23]. Concerning the programmable generator, the objective of the control is to optimize the microgrid performance. Islanded mode The MG operates autonomously, in a similar way to physical islands, when the disconnection from the main grid occurs [37]. When the grid is not present, the ARL2 disconnects the microgrid from the grid, starting the autonomous operation. The instant at which the intentional islanding occurs must be detected in order to the inverter changes between grid-connected to intentional island modes. The detection is achieved using an algorithm described in [23]. When the main distribution network is faulted, the fault current will flow into the main grid from the microgrid continuously. At the same time, the circuit breaker of microgrid should detect the frequency and voltage-drop, and open in time, which makes the microgrid disconnect automatically from the main grid and change to islanded operation mode. Diesel generator should adopt the reasonable control strategies to ensure the stability of frequency and voltage in microgrid [42]. While switched from Mode-G to Mode-I, the UPS system operates in voltage control mode, is setting the voltage and frequency of the microgrid through absorbing or releasing energy. In islanded mode, due to the unavailability of the utility grid, two requirements must be fulfilled: the power balance between the generation and the consumption and the control of the main parameters of the installation (voltage amplitude and frequency). In synchronous islanded mode this reference is the same as the grid voltage. This mode is also called synchronization mode and it is the mode that necessarily precedes a reconnection with the grid. The control system is responsible for assuring the power balance. In case of energy excess the management system can limit the output power of the diesel generators power in order to avoid the operation in extremely inefficient low power generation modes. On the contrary, if all the available power is not enough to feed the local loads, the management system will detach non-critical loads. The control system is voltage controlled and it regulates the main parameters of the system. The UPS systems sets the voltage and frequency of the islanded microgrid and maintains them within acceptable limits by injecting or absorbing active power and reactive power as required. As soon as the presence of mains is detected, the microgrid control system uses feedback information from the mains voltage to adjust the energy storage unit voltage and frequency control loops to synchronize the microgrid voltage with the main voltage of the main grid. Transition from Grid-Connected to Islanded Mode There are various islanding detection methods proposed for DG systems [44]. As mentioned above, there is a different control strategy when the laboratory-scale microgrid system operates in Mode-G or Mode-I. If there is a transition between these two modes, the control mode of the battery inverter will change. A switching circuit, as shown in Fig.7, is designed to realize this transition [20]. A load-voltage control strategy proposed by [23] is employed to provide the operation of the microgrid. Disconnection of the microgrid from the grid can be provoked by many causes, like unsatisfactory grid voltage (in terms of amplitude or waveform) or even economic aspects related to power price. In order to monitor grid voltage characteristics a Voltage monitoring module is required. This module measures continuously the rms grid voltage comparing it with a preestablished threshold value. When any of the phase voltages goes down the threshold value (0.9 pu in this case) the detection signal is activated. If 20 ms after the first detection this signal is still activated the microgrid must be disconnected from the utility grid and it must pass to islanded operation mode, otherwise the microgrid will remain connected to the utility grid. This way unnecessary islandings are avoided and selectivity is respected. A 20 ms time window has been chosen after verifying through experimental tests and standards [47] that a personal computer (which is considered as the most critical residential lo ad in this microgrid) is not affected by a 20 ms voltage interruption. As soon as the microgrid is disconnected from the grid, the programmable generator controller passes from a power control mode to a voltage control mode. Microgrid power consumption is also continuously measured in order to detach non-critical loads if there is no enough local available power. In addition if consumption or generation conditions are modified and it becomes possible to feed all the local loads, non-critical loads will be reconnected. Transition from Islanded to Grid-Connected Mode When the grid-disconnection cause disappears, the transition from islanded to grid-connected mode can be started. To avoid hard transients in the reconnection, the diesel generator has to be synchronized with the grid voltage [23]. The DG is operated in synchronous island mode until both systems are synchronized. Once the voltage in the DG is synchronized with the utility voltage, the DG is reconnected to the grid and the controller will pass from voltage control mode to current control mode. When the microgrid is working in islanded mode, and the ARL2 detects that the voltage outside the microgrid (in the grid) is stable and fault-free, we have to resynchronize the microgrid to the frequency, amplitude and phase of the grid, in order to reconnect seamlessly the microgrid. If the grid-disconnection cause disappears and the gridvoltage fulfills the desired requirements, the transition from islanded to grid-connected mode can be started. The grid voltage conditions will be again monitored by the Voltage monitoring module. This way if the grid voltage exceeds the threshold value the detection signal is deactivated. If 20 ms after the first detection the detection signal is still deactivated it means that utility grid has returned back to normal operating conditions and the microgrid can reconnect to the grid. However, before the reconnection, the microgrid has to be synchronized with the grid voltage in order to avoid hard transients in the reconnection. To do so, the microgrid operates in synchronous islanded mode during 100 ms with the aim of decoupling the reference variation and the physical grid reconnection transients. In this operating mode the voltage in the microgrid is set to the characteristics of the grid voltage, frequency and phase. Once the voltage in the microgrid is synchronized with the utility voltage the microgrid can be reconnected to the grid and the programmable generator controller will pass from a voltage control mode to a power control mode. In the same way if non-critical loads are detached they are also reconnected. In the presence of unplanned events like faults, microgrid separation from the MV network must occur as fast as possible. However, the switching transient will have great impact on microgrid dynamics. The microgrid functionalities as well as its control methods depend on the mode of operation [23]: Islanding of the MG can take place by unplanned events like faults in the MVnetwork or by planned actions like maintenance requirements. In this case, the local generation profile of theMG can be modified in order to reduce the imbalance between local load and generation and reduce the disconnection transient [48]. Conclusions In this paper the microgrid system installed at the Tallinn University of Technology, has been presented. The microgrid includes a diesel generator, batteries storage with power electronic interface. The architecture of the microgrid for the Tallinn University of Technology and a control system structure for the microgrid were proposed. Design of a control and monitoring system for a microgrid is presented in this paper. A hierarchical control scheme is proposed. This will enhance the reliability and stability of the microgrid on one end and will make microgrid an easy to use product on the other. Acknowledgement This paper was supported by the Project DAR8130 Doctoral School of Energy and Geotechnology II. References A.M.Borbely,J.F.Krieder, Distributed generation: the power paradigm for the new millennium, CRC Press, Boca Raton, Florida, 2001, 388p. P.Nabuurs, SmartGrids, European Technology platform, Strategic Deployment Document for Europes Electricity Networks of the Future, September 2008, 68p. R.Lasseter, Microgrids, Proceedings of 2002 IEEE Power Engineering Society Winter Meeting, vol.1, NewYork, NY, 2002, pp.305-308. B.Kroposki,T.Basso,R.DeBlasio, Microgrid Standards and Technologies, Power and Energy Society General Meeting Conversion and Delivery of Electrical Energy in the 21st Century, 2008, pp.1-4. P.Mazza, The Smart Energy Network: Electricitys Third Great Revolution, Jun. 2003. [online]. Available: http://www.microplanet.com/upload/pdf/SmartEnergy.pdf, 22p. J.A.Momoh, Smart Grid Design for Efficient and Flexible Power Networks Operation and Control, IEEE Power Energy Society Power Systems Conference and Exposition, Seattle, Washington, 2009, pp.1-8. A.Mehrizini-Sani,R.Iravani, Secondary Control for Microgrids Using Potential Functions: Modeling Issues, Conference on Power Systems (CIGRECanada2009), Toronto, Canada, 2009, pp.1-9. A.Mohamed, Microgrid modeling and online management, PhD thesis, Helsinki University of Technology, Helsinki, Finland, 2008, 169p. D.Yubing,G.Yulei,L.Qingmin,W.Hui, Modelling and Simulation of the Microsources Within a Microgrid, Electrical Machines and Systems (ICEMS 2008), Jinan, China, 2008, pp.2667-2671. C.M.Colson,M.H.Nehrir, A Review of Challenges to Real-Time Power Management of Microgrids, IEEE Power Energy Society General Meeting, Calgary, Canada, 2009, pp.1-8. C.M.Colson,M.H.Nehrir,C.Wang, Ant Colony Optimization for Microgrid Multi-Objective Power Management, IEEE Power Energy Society Power Systems Conference and Exposition, Seattle, Washington, 2009, pp.1-7. S.Ahn,S.Moon, Economic Scheduling of Distributed Generators in a Microgrid Considering Various Constraints, IEEE Power Energy Society General Meeting, Calgary, Canada, 2009, pp.1-6. C.A.Hernandez-Aramburo,T.C.Green,N.Mugniot, Fuel Consumption Minimization of a Microgrid, Industry Applications, IEEE Transactions, 2005, vol.41, no.3, pp.673-681. A.Arulampalam,M.Barnes,A.Engler,A.Goodwin,N.Jenkins, Control of power electronic interfaces in distributed generation Microgrids, International Journal of Electronics, vol.91, no.9, London, GB, 2004, pp.503-524. F.Pilo,G.Pisano,G.G.Soma, Neural Implementation of MicroGrid Central Controllers, IEEE International Conference on Industrial Informatics, New York, 2007, pp.1177-1182. R.H.Lasseter,P.Piagi, Control and Design of Microgrid Components, Final Project Report Power Systems Engineering Research Center (PSERC-06-03), 2006, p. 257. P.Piagi,R.H.Lasseter, Autonomous Control of Microgrids, IEEE Power Engineering Society General Meeting, Montreal, Canada, 2006, pp.1-8. F.Z.Peng,Y.W.Li,L.M.Tolbert, Control and Protection of Power Electronics Interfaced Distributed Generation Systems in a Customer-Driven Microgrid, IEEE Power Energy Society General Meeting (PESGM 2009), Calgary, Canada, 2009, pp.1-8. R.H.Lasseter,P.Piagi, Microgrid: A Conceptual Solution, IEEE 35th Power Electronics Specialists Conference (PESC2004), vol.6, Aachen, Germany, 2004, pp.4285-4290. Y.Che,Z.Yang,K.W.EricCheng, Construction, Operation and Control of a Laboratory-Scale Microgrid, 3rd International Conference Power Electronics Systems and Applications, (PESA2009), 2009, pp.1-5. R.Lasseter,A.Akhil,C.Marnay,J.Stephens,J.Dagle,R.Guttromson,A.S.Meliopoulous,R.Yinger,J.Eto, The CERTS MicroGrid Concept, CEC Consultant Report P500-03-089F. Sacramento, CA: California Energy Commission, 2003, 32p. M.Adamiak,S.Bose,Y.Liu,J.Bahei-Eldin,J.DeBedout, Tieline Controls in Microgrid Applications, Bulk Power System Dynamics and Control VII. Revitalizing Operational Reliability, 2007 REP Symposium, 2007, pp.1-9. H.Gaztanaga,I.Etxeberria-Otadui,S.Bacha,D.Roye, Real-Time Analysis of the Control Structure and Management Functions of a Hybrid Microgrid System, IEEE 32nd Annual Conference Industrial Electronics, (IECON2006), 2006, pp.5137-5142. A.Rà ¶Ãƒ ¶p(editor,reviser), Annual Report 2008 Department of Electrical Drives and Power Electronics, Tallinn: TUT Publishing, Estonia, 2009, 74p. http://www.ab.com/PEMS/pm3000.html http://www.rockwellautomation.com/rockwellsoftware/assetmgmt/energymetrix/sysreq.html http://www.ab.com/programmablecontrol/pac/controllogix/ Design and Implementation of a Control System for a Microgrid involving a Fuel Cell Power Module A. P. Agalgaonkar, S. V. Kulkarni, S. A. Khaparde, and S. A. Soman, Placement and Penetration of Distributed Generation under Standard Market Design, International Journal of Emerging Electric Power Systems, Volume 1, Issue 1 2004; Article 1004 TOWARDS A SMART NETWORK IN A BUSINESS DISTRICT. COMBINING DISPERSED UPS WITH DISTRIBUTED GENERATION Designing the Optimal Stand alone Power System which uses Wind Power and Solar Radiation for Remote Area Object Placement and Penetration of Distributed Generation under Standard Market Design Off-Grid Diesel Power Plant Efficiency Optimization and Integration of Renewable Energy Sources Model. Validation and Coordinated Operation of a Photovoltaic Array and a Diesel Power Plant for Distributed Generation Distributed monitoring and control of future power systems via g

Ernest Hemingways Indian Camp Analysis

Ernest Hemingways Indian Camp Analysis The Indian camp is generally recognized as one of Hemingways best and most interesting short stories. It primarily focuses on the relationship between father and son, and on its attendant rites of initiation into the world of adult experience: child birth, loss of innocence and suicide. (Werlock). The boy, Nick Adams, accompanies his doctor father to the Indian camp where a pregnant woman has serious complications as she labors to give birth. Dr. Adams ultimately saves her life and that of the baby by performing a caesarian section, but, shortly afterwards, the womans husband commits suicide. The story dramatizes what is apparently the young Nick Adams first confrontation with profound personal suffering. This can be reflected in the numerous questions that he poses to his father, do ladies always have such a hard time having babies? and do many men kill themselves, Daddy? ,the afflictions and torments of life now seem clear to Nick for the first time in his life. A number of specific questions arise from this short story, such as, why does the Indian husband kill himself? What is Uncle Georges role, and why does he disappear by the end of the story? How are we supposed to feel toward Dr. Adams? although the story is consistently read as a father-son initiation tale, these sort of questions encourage a reader to look beyond the simple and benevolent fact that Dr. Adams almost surely saved the life of the Indian woman and her baby and focus attention on some more disturbing aspects of the story. (Tyler) The story Indian camp, was crafted with a lot of symbolism and other aspects of literature that are so characteristic of Hemingways, approach and technique of narrating his stories, that is, in a very simple and obvious way but full and rich with hidden meanings. These aspects of the story are what this paper will seek to look at and address, with the expectation that they will come as close as possible to what other writers have attempted to imply Hemingway meant when he wrote the short story. The story through various aspects portrays the notion of initiation, young Nick Adams is being initiated into adulthood. From the beginning of the story, nick and his father, got in the stern of the boat and then crossed over from one area to another by use of water. The water herein represents not only a means of travel but also, the cycle of life from birth to death. moreover, when they are heading back, the writer states, The sun was coming up over the hillsà ¢Ã¢â€š ¬Ã‚ ¦ this too symbolizes a new beginning for young nick who through the experience at the Indian camp, returns home ,having passed through another rite of passage. In addition, when they arrive at the Indian camp, the young Indian stopped and blew out his lantern. This literal shift from lightness to darkness represents the figurative separation for nick. He no longer is positioned in his comfort zone. The description and the meticulous details that Hemmingway has narrated in regards to the journey that they take to arrive at the Indian camp. A journey that was seemingly very long and endless. They had to travel across the river and through the forest overcoming all the obstacles and being blinded by nightfall. This journey tends to signify the passage that an individual takes after birth all the way through to adulthood, commonly referred to as the journey of life. The Indian womans screams have been going on for a long time, so long that the men of the village have purposely moved out of earshot; but Dr. Adams tells nick that the screams are not important(68) and chooses not to hear them. As a doctor, he adopts this attitude as a professional necessity in order to accomplish the difficult task of performing the operation without aesthetic. Conversely, it may indicate his callousness to the womans evident pain. Dr. Adams is coolly professional to the point of callousness. His jubilant pride in his work immediately after the operation becomes particularly pronounced when the writer writes, He was feeling exalted and talkative as football players are in the dressing room after a game. In addition when he addresses Uncle George and says, Thats one for the medical journal, George, Doing a Caesarian with a jack-knife and sewing it up with nine-foot, tapered gut leaders. Ironically this ends, the moment he realizes that his indifference to his patients screams blinded him to the acute emotional suffering of her husband in the upper bunk, suffering that directly led to the mans suicide. Readers view of DR. Adams may influence the way they interpret the Indians husbands suicide: why does he slit his throat moments after Dr. Adams has operated and the baby is successfully delivered? Do readers see a connection between the presence of Uncle George and the husbands decision to commit suicide? Is Uncle George the father? We also have to look at uncle Georges remarks to Dr. Adams, oh, youre a great man, all right(69), this could have been taken either as a seriously remark, meant to congratulate him for the successive delivery or sarcastically intended, in reference to the widely speculated thought that the born child could be his son ? The short bust of questions from Nick to his father on the significance of life and death leave him with his final thought: he feels quite sure he would never die (70). Nicks reflections on immortality, here in the protective warmth of his fathers arms, may represent his last moments of youthful innocence before he falls into such adult experiences such as romance and war which are reflected in the latter chapters of in our time. It is also worth noting the fathers cruelty in compelling his son to participate in a bloody, exquisite painful operation, which the boy is too young to see. Well before the suicide, the evidently overwhelmed young boy elects to stop watching the operation. Moreover, the fathers reference to his son as an interne indicates his egoistic motivation in compelling his son to witness the messy and painful surgery. He wants to remake his son into his own image There is also the explicit description that Hemmingway gives while relating to the graphic image of the Indian who commits suicide, His throat had been cut from ear to ear. The blood had flowed down into a pool where his body sagged the bunk. His head rested on his left arm. The open razor lay, edge up, in the blanket(69.), this great detail description is employed to show the effect that the picture had on Nick, since shortly after, he commences a conversation with his dad, whereby he questions his father about suicides. This leads changes the focus to death rather than the birth of a new child. Nick is shocked at the sight of a dead person and through this he learns that indeed life is very easy to cut short. And in addition removes the peaceful image that they had of the world, a harmless and untouched world. The birth of the baby and the subsequent death of the Indian husband is an ironic tragic event. Through this happy yet tragic chain of events, the true message of humanitys own mortality is revealed. Life gives way to death and the reverse is also true Many if not all initiation stories end with a sort of epiphany which usually signals the prime of the maturity process of the protagonist, in Indian camps, the story does not follow the conventional orthodox pattern of an initiation stories. Nick, Dr. Adams sons does not come to this accepted realization and ending, from his final thought: he feels quite sure he would never die (70). He shows that his maturity process still remains incomplete in the initiation. (Campbell) Hemingways oblique and sparse writing style encourages such open-ended questions, and his ending to the story refuses to settle on a single clear. This can be reflected in his end statements which leave the reader with more questions than answers to think and pounder about. Cited sources Campbell, Joseph. The Hero with a Thousand Faces. 3, illustrated. New World Library, 2008. Hemingway, Earnest. Indian Camp. In the Complete Short Stories of Earnest Hemingway. The Finca Vigfa Edition. New York: Charles Scribners sons, 1987. Tyler, Lisa. Student companion to Ernest Hemingway. Greenwood Publishing Group, 2001. Werlock, James P. The Facts on File companion to the American short story, Volume 2. 2. Infobase Publishing, 2010.

Cider House Rules Essay -- essays research papers

The movie Cider House Rules involves many different characters that one can focus on, but the main character I want to focus on is Homer Wells, who is also the main character of the film. Now every character goes through many different situations and are faced with different obstacles that they must over come. Dr. Larch has to over come the ability to realize he is human, and how the board wants to replace him. Mr. Rose has to over come non-diligent workers, and conflicts with his daughter and keep a calm, flowing working environment. Candy Kendall has to deal with her husband Wally Worthington being away fighting for the United States in World War II. On the other side Wally has to deal with the loss of ability to use his legs and being paralyzed in a wheel chair. But, none of these are more compelling or can be looked at in so many ways as Homer's. Now from the time Dr. Larch said, "Hence forth you be known as Homer Wells", he seemed to be the type of person to say, "What you see, is what you get". Now I believe this cause from early childhood, to adolescence, to early adulthood there was never anything to flashy about him. He was dressed in plain old school baby pajamas with legs and feet on them. When he was growing up he was wearing plains shirts, and a pair of slacks. This form of appearance remained constant through the rest of the movie in reality. The main colors that Homer wore were grays, blacks, and browns. Showin...

Notes on Chemical Bonding :: Chemistry

Chemical notes on bonding Ionic bonding - This occurs between metals and non metals - Fe2+/3+, Cu+/2+, Zn2+, No3- - Metals loose electrons, non metals gain electrons. - Ionic compounds conduct electricity when dissolved, but not when solid, they also have high m & b points due to strong giant 3d lattice. They are also soluble in water as they have a charge - Metal atoms always form positive charged electrons while non metals from negatively charged electrons Metallic Bonding - They conduct electricity due to a sea of delocalised electrons - They have a lattice of positive atoms. - Transition metals contribute both S and D electrons in the sea of electrons - The attraction is between the ions and mobile valence electrons and not between the layers, this means they can bend over each other - The large the number of valence electrons and the smaller the atoms and the stronger the metallic bonding Covalent bonding - Between non metals with high electron values - Can have single, double, or triple bonds Bond strength C – C: single bond, longest type of bond (154) however is the easiest to break (346) C=C: double bond, second longest bond (134) and second hardest to break (598) C=C: triple bond, smallest bond (121) however is the hardest to break (837) Predicting the type of bonding (1) From electronegativity Electronegativity is the strength of an element/atom to pull electrons towards itself. Metals have a very low electronegativity as they lose electrons in ionic bonding, however non metals have a higher electronegativity as they gain electrons in ionic bonding. (2) From position in the periodic table Metal + non metal = ionic bonding Non metal + non metal = covalent bonding Simple molecular structure Molecular covalent bonds have low m & b points because of weak intermolecular forces called Van Der Waals forces. (more on this later) Giant covalent structures Diamond and graphite both have these structures but they are very different. They both have a giant lattice with strong covalent bonds, in the case of Diamond it is 3d and very hard to break in any way, however with graphite it is only 2d so can be broken if cracked in a certain way. These structures have very high melting and boiling points. Buckminsterfullerere A family of ball shaped C-molecules in which there are around 60 atoms which are found in ball shapes. Uses are being investigated in nano-thecnology. These substances are soluble in non-polar solvents Polar bonds The larger the difference in electronegativity the greater the strength of the polar bond. Now the hard stuff

Twelve Angry Men - Juror 3 Essay -- essays research papers

12 Angry Men - Juror#3   Ã‚  Ã‚  Ã‚  Ã‚  In a crowded jury room in downtown New York, opinions collide as discussion about the innocence of a young boy is decided. The dark and foreboding storm clouds that hang over the heads of the jurors are beginning to lift as time progresses and new facts are presented. One juror is not happy about this stay of execution and is holding fast his opinion of guilty. Juror three, the president of his business, refuses to alter his vote or opinion in any way. Still haunted by his own son, juror three verbally assaults the group with a forceful tone and a taciturn attitude. One of twelve, Reginald Rose created them all from the same pen and ink, and they could all be no more different.   Ã‚  Ã‚  Ã‚  Ã‚  Juror three is angry, bitter man who has spent his entire life forcing his opinions unto others, and has most likely succeeded in this endeavor. As head of his own company, he isn’t he used to the resistence he is getting from the group. To help his arguments, he uses the phrase â€Å"know what I mean† at the end of almost everything he says, putting any juror with an opposing argument in an awkward position. As the play wears on and his reliable witnesses were called into question, and more speculation was put upon the table, he begins to become more forceful in his arguments, raising his voice much more often than usual. He firmly believes in the guilt of the accused, no matter what the other jurors say or do. There are ...

Sartre’s Criticisms on Human Essence in the Light of Aristotle’s Philosophy

Our ability to engage in abstraction is, indubitably, a unique gift endowed to our human cognition. And the reason for such a telling contention is near to being self-evident: i. e. , only human persons have the ability to see through otherwise distinct and separate entities, a unifying concept that reveals these things’ common nature, if not their defining essence. To this end, it is necessary to point that our human intellect’s preponderance to abstracting the essences is another facet of human cognition. This is because knowing, akin to seeing, affords us an immediate grasp of reality’s nature and purpose; for by the mere experience of something, say a table, we almost instantly furnish ourselves with a working concept about the thing’s essence – i. e. , we ‘know’ what a table is, what is it for. Thus, it makes sense to say that abstracting essences form part and parcel of both the intuitive and inductive process of a person’s ability to know reality. Our understanding of the concept of essence draws chiefly from the scheme provided by the Greek metaphysics. And herein it would insightful to take cue from Aristotle’s ‘hylemorphic’ framework. According to Aristotle, anything that exists – say, a tree or a dog – is constituted of both an existence and an essence; i. e. , all things both have material and formal constitutions. On the one hand, existence pertains to the act of being, or the facticity of a thing. For example, that table is being actual right when one sees it. On the other hand, essence pertains to the nature of a certain thing. It is that which makes a thing to be what it is; an abstracted concept which makes us see the connection between the entities that we are perceiving (say, a table) and the other things (say, a classroom filled with tables) belonging to the same genre or species (Lavine 71). Essence thus defines the nature of a certain thing or describes the aspect proper to the same. If we proceed with this line of argumentation, we can go on to claim that one can apply the concept of essence to pertain to reality of human persons. From here, we can move to identify conspicuous aspects which may be deemed ‘proper to human persons’, so as to glean what we may call â€Å"human essence† – i. e. , that a person is an existing being, that he shows characteristic elements proper to animals, but that he possess a faculty of intellect and freewill proper to him and him alone. In the ultimate analysis, one can say that the essence defining a human person lies in framing him as a living creature that shares certain characteristic traits of animals, but is endowed nevertheless with the unique faculty of intellect and freewill. Key to this process, it must be argued, is describing the determinate aspects of his very existence. To be sure, we may still identify a good number of characteristic elements that could equally describe what it means to be human person. And surely, we cannot stop at construing fundamental animality and rationality as aspects that sufficiently capture the â€Å"whatness† of humanity; for the reasoned construction of human essences does not entail that we have completely circumscribed the total reality of human persons. That having said, Jean Paul Sartre believes that humanity has no fixed essence. In other words, he believes that humanity cannot be framed within the parameters of determinateness or the limits we impose by construing human essences. At the very least, Sartre contends that we cannot define the contours of what it means to be a person because our freedom determines the unique manner of our very existence. J. Sartre’s contention fundamentally draws from his concept of absolute human freedom. A thinker who belongs to the erstwhile group of philosophers known as Existentialists, Sartre’s philosophy puts higher premium than most on appreciating human existence as a concrete and perpetual striving for one’s own becoming (Marias 436). This means that, for Sartre, we as human persons must constantly appreciate the fact we exist, more than the fact that we have an essence to frame our subsequent courses of actions. Sartre believes that â€Å"we are necessarily free†, and that the burden of â€Å"making† our own human essence lies in the choices that we make (Marias 440). Put in layman’s terms, Sartre believes that our freedom is absolute, and that, even more importantly, the choices we make determine the kind of person that we are. In a way, Sartre reverses the logic of human essence – i. e. , human actions does not flow from one’s own essence; instead, human essence is molded by the actions that we as persons commit to doing. For such reason, and as mentioned earlier, Sartre believes that humanity has no fixed essence. And insofar as the concrete form of our human essence takes cue only from the activities which human persons do, Sartre rests his case on the plain assumption that one’s life cannot be placed within any restricting concepts of essence, for any reason whatsoever (Marias 440-441). There are reasons to think, however, that Sartre may have framed human freedom quite radically and that his wholesale denial of an identifiable human essence may have been taken quite drastically. To this end, strains of Aristotle’s philosophy may be helpful in shedding light into some of the oversights Sartre may have committed in denying the tenability of human essence on account of absolute freedom. Firstly, it may be insightful to be reminded of the fact that Aristotle understands human essence as an aspect of life that does not effectively restrict human capacity to determine one’s path according to the sets of actions a person may willingly opt for. Human essence merely speaks of the kind or quality of existence which is construable from and identifiable in a certain thing (Lavine 71). It merely serves to help man appreciate what kind of creature he is by way of categories and definitions. Conversely, the concept of human essence does not, in any whatsoever, imply an absolute determination of human reality according to these set of classification or categorization. An example may help further situate the conundrum: when someone thinks of man as essentially a spiritual being – i. e. , the capacity for spiritual relations with God belongs properly to the characteristic trait of humanity – one does not rule out the possibility of not believing in God all together. Instead, one merely makes a statement about the humanity’s general preponderance to worshipping a deity, notwithstanding personal choice to dissent. The same goes true for human essence. Sartre thinks that humanity has not a fixed essence on account of a human freedom that determines a resulting human nature. Unfortunately for Sartre, human essence and human freedom are not mutually exclusive. In fact, a person’s freedom is only affirmed, if not accentuated by the fact that the human essence is defined by a tacit acknowledgement of man’s of basic rationality and capacity for freewill. Secondly, Sartre’s contention that human persons have no fixed essence is certainly difficult to argue precisely because human freedom is really not absolute and that humanity’s basic essence does not depend on human choice but on what nature has fundamentally given. Two aspects come into play with in this particular rebuttal. In the first place, Sartre may have taken human freedom quite radically in arguing that it our capacity to determine ourselves must be taken in absolute terms – i. e. , we can do whatever we wish; besides, we are the ones determining our resulting essence in the process. This, unfortunately, is untenable. For instance, if I, born as a human person, were to choose living like a dog, I would probably find certain dog-like activities incongruent with my natural bodily processes. I would find it difficult to bark, let alone walk in a four-legged manner; as these are not consistent with how was I born and raised. The point in contention here lies in arguing that human freedom, contrary to Sartre’s arguments, cannot be taken as an absolute determinant of human nature. On the contrary one may find it difficult to deliberately deviate from the demands of our basic human essence. Such difficulty should bring us more into an appreciation of our human nature not really as an aspect dependent on human choice, but an aspect that is made perfect by the choices that we make. Herein Aristotle’s teleological philosophy appears to take shape. According to Aristotle, essence precedes actions, or essence precedes existence; and that the perfection of all actions comes when they fulfill the essence in question (Marias 74). For instance, when a person uses critical thinking before making a judgment, such an act can be considered as a perfection of the man’s nature as a rational entity. The point in contention here lies in arguing that we cannot really do away with human nature. On the contrary, our actions must run consistent with it; for only when we act according to our nature can our actions be perfected according to our essence. By way of conclusion, I wish to end with a thought that dismisses Sartre’s contention – i. . , that humanity cannot find a common essence proper to himself and himself alone – on account of its patent inability to take into account the true state of human affairs. In the discussions that were developed, it was learned that Sartre’s refutation of human essence stems from his belief that human freedom is absolute, and that human persons are the ones molding their respective essences. However, there are surely good reasons to think that this p hilosophical stances does not hold water. First, it has been argued that the concept of human essence does not in any way defeat the reality of human freedom. Human nature and human freedom, it was argued, are not mutually exclusive. Second, Sartre appears to have neglected the fact that human freedom cannot be equated with the capacity to do what one wishes, regardless of what nature has already given. There is no such thing as an absolute freedom. And in the final analysis, we have to admit that we are bound by a certain essence, no matter how hard try to deviate from it.

Ethics and Information Technology

IMS657 Legal and Ethical Aspect of Information System Importance of ethics among the IT professional Abstract: In work environment, ethics is the common rules or approach for all professionals need to obey in order to achieve a great environment in an organization. Most of people think that ethics and morals is something that share the same meaning but actually they are not. The morals are towards the personal character, while ethics stress a social system in which those morals are applied. In other words, ethics point to standards or codes of behaviours expected by the group to which the individual belongs.The ethics might be national ethics, social ethics, company ethics, professional ethics, or even family ethics. So while a person’s moral code is usually unchanging, the ethics of he or she practices can be others to depend on. This paper is written based on data collection from many sources such as webs, articles, and books. So, this paper will provide an overview on the i mportance of ethics among the IT professionals. Furthermore, it will be explaining the beneficial of applying ethics to IT professionals in order to achieve a good relationship among the workers or team members in an organization.Keyword: Importance of ethics, Ethics, Morals, IT professionals P/S : ABSTRACT N REFERENCE LUM SIAP†¦ nak check semula nanti .. nie lum check lagi. 1 IMS657 Legal and Ethical Aspect of Information System 1. 0 Introduction Nowadays, as we know that, information technology becomes the famous things in the world because most of technology makes our work become clear and it is very useful to the people in order to manage or do something. It is very unique of information technology like mobile device, computer, and so on because it is variety of used to the people directly make the people life more comfortable.But refer to the ethics of information technology professional, it can be seen that on how they used the technology, implement the information techno logy and built for it. In the short term definition, information technology is the technology that is used to process the data. Like nowadays, we used the computer devices to process the data within the organization or out of the organization or the company. Nevertheless, when we come up with the information technology professional, we will want to know the ethics I order to used the information technology either it is good ethics or the bad ethics.There, ethics is referring to the behavior or moral of the individual people in daily life. It is very crucial things that need to know because it can show the achievement of the individual or organization goals and objectives. Actually, ethics make us become more disciplines because we need to follow the rules and procedures of the organization. Ethics among information technology professional can be defines as the attitude of information technology professional in order to accomplish something based on their behavior. It is because base d on their behavior, it can show their successful either they can achieve the goals or not.It is depends on the level of ethics strangeness. Information technology professional must have high of motivation or ethics in them self because they faced with the information technology where they need facing on the information technology which can process the data that need to manage, analyze, design, implement, control, maintenance and storing. It is mostly referring to the hardware that is familiar to process the data or information like computer. As the information technology professional, sometimes they need to face with any challenges when their work in order to accomplish something work that need to be done.It is the problem that the information technology professional in their profession. When the challenges or any issues that they need to faced, information 2 IMS657 Legal and Ethical Aspect of Information System technology professional need to try the best to find the solution to o vercome their problem and it is their roles and responsibilities. It is mostly refer to the ethics of information technology professional on how they handle some issues or any challenges in their work or job. 2. 0Methodology In completing this term paper, primary and secondary literatures are used to enable in depth understanding of the importance ethics among information technology professional. For the primary literatures in order to complete this term paper, mostly I used observation method by review all the article that is related to the ethics among information technology professional. Besides that, I used secondary data where I refer to the sources that are related to the topic that I focused on such as books, article journals, internet sources and so on.From the primary and secondary literature, I know about the challenges that are faced by information technology professional and the issues that are come up today. From the challenges or the issues, information technology prof essional need to think on how to overcome the problem that they need to faced and find the alternative or the solution to overcome it. It is based on their behavior on how they can settle their problem. The primary and secondary literature method that are used, is very crucial thing to know on what happened among the information technology professional that are based on their behavior or ethics. IMS657 Legal and Ethical Aspect of Information System 3. 0 Definitions and concept of ethics There are various definitions of ethics. According to the Britz, J. J. which come from department of Information Science University of Pretoria, he defines ethics as the individual action either good or bad and he told that ethics in the general term which make the people come as the fully human. He prefer to the use of technology that are threat to the right of privacy of a person. As a person, ethics is very importance thing in our daily activities.As we know that, ethics is referring to the variou s styles. Maybe, ethics might be as the national ethics, social ethics, company ethics, and family ethics and can be professional ethics. What is ethics? According to Sir Aristotle which is the famous philosopher, ethics is the custom, character or the habit of a person and in the simplest word; it can be defined as the system of the moral principles. It is worked out from human reason and experience by human action that determines either right or wrong. But, a sociologist like Dr.Raymond Baumhart said that ethics is can be divided into two divisions which is rights, obligations, benefit to the society, fairness of specifics virtue. It is refer to the moral beliefs. Secondly, ethics refer to the study and development of the standards of the ethical. So, ethics told that on how the people lead their lives and making the decisions. Today, we know that everybody needs to be fast and smart. For the information technology professional money is very importance thing but not in their caree r life.It is means that, career as the information technology professional will followed by their effort directly money is their reward on their effort. For the powerful organizations, information technology professional mostly refer to the ethics as the guidelines to achieve the goal of an organization. According to the Jefferson, guideline is crucial things because ethical principles that are provided will assist them in the many of the professional decisions they will make. Lacovino stated that ethics is the reasoned process but not just how we feel about something because it can be a habitual when we set a value to apply consistently.Some of the researcher defined the ethics as the agent where it refers to the agent processes or action. When we come up with the professional ethics, means that what the person who is professional should do or should not do within the organization or outside the organization. That are stated by Mclarty (2007) but Worthington (2008) told that in dev eloping any information 4 IMS657 Legal and Ethical Aspect of Information System technology, professional ethical issues can be occur. Nowadays, the modern world, all the services like internet allow people to connect quickly to the information technology system.So, Worthington states that professionals are more likely to confront ethical issues when dealing with the internet and World Wide Web (WWW). In this term paper, I mostly focused to the importance of ethics among information technology professional. When we talk about the information technology professional, it will focus on computer professional field. Being the IT professional, it is must be good certificates in information technology with their knowledge and their skill. It is the powerful tool for providing job and the business opportunities and for meeting challenges in information technology field.First, the importance of ethics among information technology professional is responsible to ensure that computer technology does not used in the wrong ways which can harm people, environment and the society. That why information technology professional need to be fair, loyal, honest and have ethical in its practices because they want to be an employee where they work for an organization and make the organization become success. With the good ethics or behavior among IT professional, they will work comfortably without feel tired on their job and responsible in term of care of the data or information in the system.With the ethics of the employee directly they can contribute better for an organization. Besides that, the importance thing among the information technology professional is access the data. According to Gordana (2003), to perform the computer or information technology professional job, they will require to access the data only in order to complete their task that they want to do. Besides that, to complete their task, they are very careful in order to use the right time to complete their task beca use they will plan better first so that each of the task can be settle step by step.It is also because of the thinking of the information technology professional which is very high level thinking by using the technology that are provided in an organization or they own technology. Therefore, quality of the data that they want to access is the factor that they should consider so that the task must be done properly in a good manner. So, in order to do the task by information technology professional, they will not concern at all whether the task or the job is complete or not and without any concentration that are cause by improper ethics education. The other importance of ethics among information echnology professional is the procedure of information technology process that will keep in secret. According to Dahlbom and Mathiasan, information technology 5 IMS657 Legal and Ethical Aspect of Information System professional just only participate in development the task, it objective and the context explicitly. For the information technology professional, it is very importance things for big organization in order to survive the industry because they have own strategy that need to do or any benchmark which it can be the key success of the business today for them.Allocated the resources is also the importance of ethics among the information technology professional. They must be professional and more responsible and punctual in complete the task that they need do and need to be done properly. It is because information technology professional like computer professional, just only take part in project with the time and the resources that are assigned which can make it possible to deliver a good job.Nevertheless, living in this era or modern information technology will happen something that are very wrong through the law which is computer crime and it is the one of the problems that need to be faced by information technology where it can attack an organization in term of vir uses and hackers that getting widespread over the years it is because Bynum (2001) stated that logical security can be divided into five aspects such as consistency by ensuring the data and behaviour can being see today and same with tomorrow, privacy and confidentially, controlling the access to the resources, not modified the data and the programs without proper authority in integrity and last but not list is in aspect unimpaired service. As we know that nowadays, there are many malicious kids of software that being used to access certain system without authorization. Viruses, Trojan horse, worms and logic bombs are some of the example that can harm the computer system in an organization. It is show that unethical action happened there which could make breaking the company system and could be penalized due to the unauthorized access.Because of that, information technology professional should be concerns on the ethics that should be apply in information technology themselves or the professional people who involved computer science so that, they could achieve a great environment information technology industries. At the same time, it can improved performance an individual in information technology field. Other than that, the importance of ethics among the information technology professional also will increase of respect among the professional people. When talk about the respect it is come from the cooperation between the team member which contribute to the development of the project that should be do by them and the 6 IMS657 Legal and Ethical Aspect of Information System evelopers of the system understand the users needs because from that, information technology can find the opportunities in order to develop some of the project to fulfil the user requirements. Besides that, ethics in information technology professional can leads the user or customer satisfaction. As an example, computer professional will develop the systems that are related to the technology i n order to satisfy the interest of the users and directly can bring the good work environment by develop system. it will show that the performance of an organization if the information technology involve under the organization and make them become more professional in term of manage of information technology that are very importance in each of an organization in the world. 4. 0Ethics conceptual Theory Ethical theory provides framework to get at underlying rationale, classify and understand arguments and defend conclusion about right and wrong that have in ethical perspectives. Deontology People should follow to their obligations and duties when analyzing an ethical dilemma and it is very consistent decisions. Utilitarianism The ability to predict the sequences of action in order to determine which choice is Ethical Theory more beneficial. Right It is considered to be ethically correct and valid to the society. Virtue Judge a person by the character rather than by an action they may clash from the normal behavior. 7 IMS657 Legal and Ethical Aspect of Information SystemFigure 1: Ethics Theory All the ethical theory or concept above is define by the people who is expert in information technology profession or sociologist that are concern with the ethics and it is very importance that need to apply in information technology professional. 5. 0 Challenges in Encouraging Ethical Behaviors among Information technology professional. There are several common challenges in developing ethical in information technology professional. Information technology needs to alert with their surrounding because many challenges that they need to faced when they complete their task within the organization. Below are the challenges that are faced by information technology professional in managed their information technology equipment and services. 5. Facing with computer crimes As we know that, nowadays is the modern world. Therefore, all the technology that is used today mostly shows t he advanced technology. We know that media technology or the communication technology is very familiar to the people and the importance things is to the organization that are used the technology to implement and maintained the task in order to achieve the goals of an organization. But, when we deal with the advanced technology, the information technology professional need to be careful by used they ethical in term of complete the task. In this times, there are most of computer viruses and added with the hacker which also known as international spy.Here, the computer security is the crucial thing that needs to consider in the field of computer ethics by the information technology professional. By the way, the problem that is faced by them is not on the physical security but in term of logical security like privacy and confidentially, controlling access to the resources and so on. Hackers which are the person who breaks into someone computer system without any permission directly can steal the data of an organization or privacy information. 5. 2 Intellectual property rights connected with software ownership. In this aspect of challenges ethics or the right. Many people think that software should be own able.Intellectual property is the one of the controversial areas of computer ethics. Some people think that software ownership not be allowed 8 IMS657 Legal and Ethical Aspect of Information System at all and all the information should be free, all programs should be available for copying. In term of that, it is very wrong ways according o the laws that are provided. As the information technology professional ethics, they need to know who take their intellectual property properly. 5. 3 Computer condition in the workplace that need to be concern As the information technology professional, the challenges that they faced is condition of the computer itself.Because of the computer always run to manage the data that are store in the system and to implement the data, ma ybe it will make the system down because the computer itself does not rest. When the system down happened that will make the information technology professional lack of ethics in order to monitor the system. 5. 4 Information privacy Privacy is the one of the computer ethics that need to be develop by public interest. The efficiency of the computer network can be used to gather the information, store, and search and retrieved the information making the computer technology treating anyone to keep various kind of information that are privacy.It is the challenges also that are faced by the information technology professional especially sensitive information like medical record. Because nowadays, the people think so far in order to get the information and make it as the basic information that is not importance. It is because of the hacker that wants the information. Therefore, information privacy nowadays also does not secure in hundred percent. 5. 5 Globalization In term of globalizatio n, computer ethics today is rapidly involved in more importance field. It is also can be known a global information ethics. Global networks like internet will connect people all over the world. Globalization refers to the variety of used like global cyber business, global education and so on.The world is very close to the technology which can provide electronic privacy and security on the interne in order to connect the international business transactions. This challenges is very familiar nowadays, because in 9 IMS657 Legal and Ethical Aspect of Information System transaction of the business today cheating and fraud in business always happened. 6. 0 Recommendations to address the challenges in encouraging ethical behaviors among information technology professional In response to the challenges that are stated above, several recommendations are proposed as follow: 6. 1 Government should have a strict action with the computer crime. To address the challenges, I recommended that govern ment of each country in the world should be strict to the computer crime based on the computer crime act.There, people who involved in the investigation of the computer crime should find the people who do the wrong things in using computer until the people who make computer crime can be punished so that we can reduced the number of computer crime directly make it very clear. There, no give up action should behave but always find the ways on how to catch them. 6. 2 Discuss with the team member In this point, that I recommend, means that all the information technology professional that are deal with the information technology, should discuss everything about the problem or the challenges that they faced in manage the technology and the system. For example, when people used t software and sale that software without any permission of the software ownership, they could discuss about it on their intellectual property on how to take the action to the people who wrong in that situation.From the discussion with the team member, it will provide more decision and the best decision will be used to settle that problem. That is the good ethics when working in the group as the information technology professional. 6. 3 Told the society about the act of privacy We know that, government today implement the act of privacy but the society does not know about the act anymore. It is because the society today lack of information that they should know. When we told them about the act of 10 IMS657 Legal and Ethical Aspect of Information System privacy, they will know what might be right and what might be wrong. From there, the act of privacy will be clear to the society. 6. 4Motivate the information technology professional In order to motivate the information technology professional, the top management in an organization should lead them in order to motivate them. Top management in an organization should remind the information technology professional when they do their job or work. It s very importance thing to do where the top manager alert with the leadership style or skill in each of the organization. Top manager should support their staff so that they will motivate to accomplish the task that is given. 6. 5 Organized seminar Some of the organization should organize the seminar o that all people involved in the seminar programmed.Especially, seminar about the information technology professional where the audience of the seminar will focus on the information technology department in term of tell about the ethics of information technology professional includes their roles and responsible. Told them on how to faced the problem or any challenges and on how to overcome it immediately. 11 IMS657 Legal and Ethical Aspect of Information System 7. 0 Conclusion As the conclusion, by applying the ethics among the information technology, it will make the organization become more success and will make the individual become more talent when deal with something issues and a ny challenges that they need to face. By the ethics in themselves, will make them more professional in handling the information technology directly deals with the user or customer of the system.So, ethics is a set of principle that should have in all the people itself but not just only in information technology professional only. The importance of ethics among information technology professional should be concern by the people so that the environment of information technology become more special to the user and people who in charge on it. By applying the ethics also, we could determine that the right and wrong of an individual action. But, it is depending to the situation that is faced by the people. Therefore, with the ethics, information technology can avoid from the unethical action like unauthorized access, plagiarism, disturbing people privacy hacking the information and etc. ecause of that, information technology profession, need to concern the code of ethics so that the indiv idually performance could be improve and directly improve the company or organization itself in order to achieve the organization goals, vision, mission and objectives. 12 IMS657 Legal and Ethical Aspect of Information System 8. 0 References Bynum. (2001). Computer and information ethics. Retrieved April 10, 2013 from http://plato. stanford. edu/entries/ethics-computer/#ComCri Lacovino. (2002). Ethical principles and information professionals: Theory, practice and education. Retrieved April 10, 2013 from http://www. alia. org. au/publishing/aarl/33. 2/full. text/iacovino. html Worthington. (2008). Ethics for ICT professionals. Retrieved April 11, 2013 from http://www. tomw. net. au/technology/it/ictethics. shtml 13