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History

In 1983, OS-9/6809 was ported to Motorola 68000 assembly linguistic communication and extended ( called OS-9/68K ) ; and a still subsequently ( 1989 ) version was rewritten largely in C for farther portability. The portable version was ab initio called OS-9000 and was released for 80386 Personal computer systems around 1989, so ported to PowerPC around 1995. These ulterior versions lack the memory function installations of OS-9/6809 Level Two merely because they do non necessitate them. They used a individual level reference infinite that all procedures portion ; memory function hardware, if present, is largely used to guarantee that processes entree merely that memory they have the right to entree. The 680x0 and 80386 ( and subsequently ) MPUs all straight support far more than 1 MB of memory in any instance.

As a effect of early permeant design determinations taking advantage of the easy used reentrant object codification capablenesss of the 6809 processor, plans intended for OS-9 are required to be re-entrant ; compilers produce re-entrant codification automatically and assembly programs for OS-9 offer considerable support for it. OS-9 besides uses position-independent codification and informations because the 6809 besides supported it straight ; compilers and assembly programs supported place independency. The OS-9 meat tonss plans ( including shared codification ) , and allocates informations, wherever sufficient free infinite is available in the memory map. This allows the full OS and all applications to be placed in ROM or Flash memory, and eases memory direction demands when plans are loaded into RAM and run. Programs, device drivers, and I/O directors under OS-9 are all 'modules ' and can be dynamically loaded and unloaded ( capable to associate counts ) as needed.

The best known hardware ( due to its low monetary value and wide distribution ) was the TRS-80 Color Computer ( CoCo ) and the similar Dragon series. Even on the CoCo, a quite minimalist hardware platform, it was possible under OS-9/6809 Level One to hold more than one synergistic user running at the same time ( for illustration, one on the console keyboard, another in the background, and possibly a 3rd interactively via a consecutive connexion ) every bit good as several other non-interactive procedures. A 2nd processor execution for the BBC Micro was produced by Cumana. It included on-board RAM, SASI difficult disc interface and a MC68008 processor.

On a computing machine like an SS-50, machines which had more memory ( for illustration, those from Gimix, Southwest Technical Products, etc. ) , and I/O accountants that did non lade the CPU as did the CoCo, multiple users were common, even with merely 64 KB of RAM ( i.e. , Level One ) . With hardware back uping memory direction circuits ( that is, address interlingual rendition ) and OS-9 Level 2, GUI usage was successfully everyday, even on the minimal resourced CoCo. This was several old ages prior to successful GUIs on the 16-bit IBM PC category machines, and many old ages prior to decently working multi-tasking, multi-user, access-controlled runing systems on IBM PC type machines or on any of Apple 's machines.

In late 1980s, Microware released OS-9000, a more portable version of the operating system. The huge bulk of the operating system meat was rewritten in C go forthing a smattering of hardware-dependent parts in assembly linguistic communication. A few `` more advanced characteristics '' were added such as tree-like meat faculty name infinite. OS-9000 was ab initio ported to the Motorola 680x0 household CPUs, Intel 80386, and PowerPC. The OS-9000/680x0 was a selling failure and withdrawn really rapidly, likely because few clients wanted to seek the fatter and slower operating system over the bing OS-9/680x0 proven record of stableness. That the Motorola 680x0 household and VME board computing machine system sellers were approaching their terminal of life might hold affected the unpopularity of OS-9000/680x0. Microware subsequently started naming all of its runing systems — including what had been originally called OS-9000 — merely OS-9, and started switching its concern involvement towards portable consumer device markets such as cellular telephones, auto pilotage, and multimedia.

Undertaking programming

OS-9’s real-time meat allows multiple independent applications to put to death at the same time through undertaking shift and inter-process communicating installations. All OS-9 plans run as procedures incorporating at least one lightweight procedure ( yarn ) but may incorporate an efficaciously limitless figure of togss. Within a procedure, these lightweight procedures portion memory, I/O waies, and other resources in conformity with the POSIX togss specification and API. OS-9 schedules the togss utilizing a fixed-priority pre-emptive programming algorithm with round-robin programming within each precedence. Time sliting is supported. The precedence degrees can be divided into a scope that supports aging and a higher-priority scope that uses rigorous precedence programming. Each procedure can entree any system resource by publishing the appropriate OS-9 service petition. At every programming point, OS-9 compares the precedence of the yarn at the caput of the active waiting line to the precedence of the current yarn. It context switches to the yarn on the active waiting line if its precedence is higher than the current processes’ precedence. Aging unnaturally increases the effectual precedence of togss in the active waiting line as clip base on ballss. At defined intervals, clip sliting returns the current yarn to the active waiting line behind other togss at the same precedence.

Comparisons with Unix

OS-9 's impression of procedures and I/O waies is rather similar to that of Unix in about all respects, but there are some important differences. First, the file system is non a individual tree, but alternatively is a wood with each tree matching to a device. Second, OS-9 does non hold a Unix-style fork ( ) system call—instead it has a system call which creates a procedure running a specified plan, executing much the same map as a fork-exec or a spawn. Additionally, OS-9 procedures keep path of two `` current directories '' instead than merely one ; the `` current executing directory '' is where it will by default expression foremost to lade plans to run ( which is similar to the usage of PATH environment variable under UNIX ) . The other is the current information directory.

Android And The Smartphone Market Essay

INTRODUCTION Thomas Edison one time said, `` To hold a great thought, have a batch of them '' . The same mantra seems to be vibrating within Google as they are ever coming out of airy and advanced ventures. Diversifying from their hunt engine, Google is now embarking to Self-Driven Cars and infinite balloons that act as cyberspace routers for difficult to make. One of their radical ventures at the clip is a smartphone operating system ( OS ) , the Android. With this, the study shall look into the function of corporate venturing in maintaining Google relevant in today’s volatile concern environment, concentrating on the Android OS venture. It will besides look into how a big planetary organisation such as Google, manage hazards to guarantee success of its ventures, get the human capital to run things, and how to explicate advanced solutions during times of uncertainness. The undermentioned instances from the book “Making Waves: Understanding Innovation for Business Success - Global Case Studies” by Richard J. Pech and Mike Turner ( 2014 ) were compared for similarities to the Android OS venture: • Little Swan Group Company’s realisation that invention can be externally acquired and the importance of co-optation in deriving a late-comer’s advantage. • Seaworks showcasing the importance of engaging competent persons to pull off the growing of the venture and swearing them by supplying them a sense of control over the undertaking. • The success of VinCom Joint Stock Company due to its capital resource advantage and the thrust to prosecute the undertaking even in the face of uncertainness. Taking into history the comparing of these instances, the study shall urge alternate schemes for Google to go on the growing of the Android OS despite the industry’s intense competitory kineticss. ORGANISATION BACKGROUND Google was founded in 1998 with a mission to form the world’s information and do it universally accessible and utile. The company started with the Google Search service and over the old ages expanded sharply in to web-based merchandises and services, advertisement, media, productiveness tools, smart place contraptions, broadband service, green energy, venture capital and health care. In 2005, the smartphone market reached 34.7 million in units sold ( `` Smart-phone market booming '' , 2006 ) and is projected to make 1.5 billion units by 2017 ( `` Smart-Phone Market To Double By 2017 '' , 2013, p. 17-18 ) . Acknowledging this chance and with the motive to heighten its strategic technological capablenesss, Google acquired the start-up company Android Inc. which was planing a smartphone OS to kick-start its venture to the smartphone industry. This same scheme of invention can be likened to how the Little Swan Group Company acquired engineering from Matsushita to impel them to bring forth hi-tech merchandises ( Pech, Pech, Wei, & Shi, 2005, p. 108-109 ) . Corporate Venturing through acquisition happens when a company takes over ownership of another company with an purpose of doing the acquired house a.

The Applicability and Non-Applicability of the CISG to Software Transactions

Introduction The Prevailing View and Its Problem - The Prevailing View in a Nutshell - The Tangible / Intangible Debate - The Many Meanings of `` Software '' - License Contracts: The Structure of Transactions in Information -- License Contracts -- Copyright Holders Preference for License over Gross saless Standard Software Transferred by Physical Copy - Sale - License - Shrink-wrap licences / Click-on licences Online Software Customized Software Conclusion: By manner of Policy Re-Consideration - Anti-License? - Uniformity

However, the independency of package, accompanied by the rapid growing of information engineering, has changed the landscape. The usage of the term 'software ' may be misdirecting depending on its contour. It includes non merely those computing machine plans which run on traditional personal computing machines, such as operating system ( OS ) package, application package ( eg word processors and spreadsheets ) , but besides other 'digital information ' such as music, films, and games recorded on Cadmiums, DVDs or those traded online. This short essay takes up the inquiry of whether the CISG applies to minutess in 'software ' in this wide sense.

Therefore, in order to prosecute in dealing in 'information ' , it is necessary to invent a strategy which creates 'scarcity ' and 'exclusiveness ' . Otherwise, one time information is disseminated, it is susceptible to copying and duplicate. Fall backing to secrecy ( eg 'trade secrets ' , 'know-how ' ) or to assorted copy-protection engineering would be one manner to make scarceness. Intellectual belongings rights besides create scarceness. For illustration, the copyright-holder has the sole right to do a transcript. Secrets, engineering, and IP rights map as a limitation on others to utilize the information.

A purchaser may import volumes of touchable package bundles for resale intents, or a physical transcript for her ain professional usage. The marketer is the proprietor of the transcript, but non needfully the copyright-holder. This is similar to the state of affairs where a book or a music Cadmium is sold. It is of import to observe that although the purchaser becomes the full proprietor of the book or Cadmium, her right to utilize the information recorded in them is restricted by right of first publication jurisprudence. To be more compendious, the purchaser is free to read the book, listen to the Cadmium, resell the book/CD, but copying the information is restricted. The same applies to the sale of a physical transcript of a computing machine plan. ( However, the alleged shrink-wrap licenses/click-wrap licences raise different issues, and will be considered individually below. ) The purchaser becomes the full proprietor of the disc, but her usage of the package in the disc is restricted by right of first publication jurisprudence.

This exclusion of the CISG can be justified on the footing of Article 3 ( 2 ) CISG which provides that the CISG 'does non use to contracts in which the overriding portion of the duties of the party who furnishes the goods consists in the supply of labor or other services. ' In package licences, even when it involve go throughing of belongings in a physical transcript, the 'preponderant portion of the duties ' of the licensor is non in the supply of the physical transcript ( the economic value of the touchable transcript is minimum ) . It is in the granting of licence with respect to the usage of the package. True, there may be uncertainties about sorting licences as a 'supply of labor or other services ' . Even so, nevertheless, it is submitted that the effect of Article 3 ( 2 ) CISG is in excepting from the CISG, contracts of which the overriding portion of the duties of the party supplying the goods consists in the non-sales facet.

Against this analysis, it may be argued that the gross revenues leg is non truly a sale of goods, but it may be a sale of 'a right to reason a license understanding with the licensor ' . If this is the instance, neither of the double relationship will be governed by the CISG. Article 3 ( 2 ) CISG would except such dealing from the CISG because the overriding portion of the duty of the marketer would be in the trappings of the right to reason a licence understanding, non in the trappings of the physical transcript. However, in world, it is this writer 's position that merely in exceeding instances would this reading conform to the purposes of the parties to the gross revenues leg.

The bulk position is that the CISG applies to online package. Advocates of this place recommend equal intervention for package delivered on a disc and those delivered online. In their apprehension, since the sale of physical transcript of standard package and online package minutess are contracts for the same intent, the jurisprudence should be blind to the manner of bringing. One observer goes every bit far as to analogise from the equal intervention of beer sold in a bottle and beer sold from the pat, and suggests that 'The container or medium is irrelevant in which the goods are being transferred to the purchaser. ' This is a false analogy because beer itself is clearly touchable.

Other observers seem to propose that since information can be recorded on a touchable media, online package minutess are no different from minutess utilizing physical transcripts. This position non merely confuses the touchable media with intangible information, it besides overlooks the most important point that the media is non transferred from one party to the other in on-line minutess. Neither is the information transferred from one party to the other. It is merely 'copied ' , and no belongings ( ownership ) passes from the marketer to the purchaser. It seems that there is no room to use the CISG.

Customized package may or may non affect transportations of physical transcripts. It follows from the analysis above that when transportations of physical transcripts are non involved ( ie supplied online ) , there is no room for the CISG to use, since such contract can non be a sale of goods. Even when physical transcripts are involved, if the contract is one of licence, so the CISG does non use ( Article 3 ( 2 ) CISG ) . What must be considered here, hence, are contracts for the supply of customized package in which the belongings ( ownership ) of the physical transcript is transferred from one party to the other. The difference between customized package and criterion package lies in the engagement of 'service ' to develop the package, and this raises the possibility of exclusion based on Article 3 CISG.

To the contrary, one observer suggests that under Article 3 ( 1 ) CISG. the stuff provided by the purchaser need non be a touchable, and since the instructions or informations provided by the purchaser may represent the 'substantial portion, of the stuff, the CISG should be excluded. However. the standard employed by Article 3 ( 1 ) CISG is 'property based ' . If the purchaser supplies a significant portion of the stuff, so the purchaser owned the significant portion of concluding merchandise to get down with, in which instance the application of the CISG is non justified. This principle does non use to instances where the purchaser provides informations.

Although the bulk of observers and instances seem to use Article 3 ( 2 ) CISG, 'services ' which go into the fabrication or bring forthing of the goods should non be counted in Article 3 ( 2 ) CISG However, it is of import to retrieve that we are concerned here merely with the 'sale ' of a physical transcript of customized package. If we are concerned with 'licenses ' affecting the transportation of 'physical transcript ' , so Article 3 ( 2 ) CISG would come into drama. In that instance, the 'preponderant portion of the duties ' would non be the transportation of the physical transcript but the development of the package and the licensing. This is the same as the licence of standard package affecting physical transcripts, discussed above, and the CISG should non use.

In comparing to the prevailing position, the analysis above restricts the pertinence of the CISG to package minutess by excepting 'license contracts ' . From the point of view of policy, could this be justified? Presumably, the pro-Convention inclination of the prevailing position is supported by two policy considerations. One evidently is the high value placed on the publicity of uniformity of Torahs. The other possibility is the 'anti-License ' policy influenced by a domestic contention that took topographic point in the USA. The staying portion of this essay reconsiders these policy considerations in rearward order.

The prevalent position above was shaped during the clip when the controversial Uniform Computer Information Transactions Act ( UCITA ) which covers package licences was being drafted in the USA. Its outlining procedure was extremely politicized and UCITA has been accused of as being excessively tilted in favour of the package industry. Although UCITA was promulgated by the National Conference of Commissioners on Uniform State Laws ( NCCUSL ) in 1999, merely two provinces ( Virginia and Maryland ) has adopted it, and NCCUSL has abandoned its attempts to advance acceptance of UCITA in other provinces. The hostility created against UCITA may hold affected the discourse of whether the CISG applies to package minutess. Among those trained in contract jurisprudence, as opposed to rational belongings jurisprudence, the Zeitgeist was anti-UCITA or anti-Incensing jurisprudence. In the context of the CISG, this is the most evident in the Hagiographas of Joseph Lookofsky, where he states that 'the CISG should be applied to international gross revenues of computing machine package, including minutess which program-sellers frequently unsuitably dub ' licences '' and speaks disapprovingly that the 'manufacturing anteroom continues its campaign in favour of statute law which would transform gross revenues of goods into ( decreased guarantee ) 'licenses ' . '

2. Comments and treatises taking this place include Herber, R ( 1998 ) , Article I ' in Schlechtriem, P ( 1998 ) Commentary on the UN Convention on the International Sale of Goods ( CISG ) ( 2nd erectile dysfunction ; translated by Geoffrey Thomas } Oxford: Clarendon Press at 23 ; Honnold, JO ( 1999 ) Uniform Law for International Gross saless under the 1980 United Nations Convention ( 3rd erectile dysfunction ) Kluwer Law International at 55 ; Lookofsky, J ( 2004 ) , Understanding the CISG in the USA ( 2nd erectile dysfunction ) Kluwer Law International at 21-22 ; Schlechtriem, P ( 2005 ) , Article 1 ' in Schlechtriem, P and Schwenzer, I ( 2005 ) Commentary on the UN Convention on the International Sale of Goods ( CISG ) ( 2nd English Edition ) Oxford University Press at 29 ; Bridge, M ( 2007 ) The International Sale of Goods: Law and Practice ( 2nd erectile dysfunction ) Oxford University Press at 520. Other scholarly Hagiographas include Primak, S ( 1991 ) 'Computer Software: Should the U.N. Convention on Contracts for the International Sale of Goods Apply? A Contextual Approach to the Question ' ( 11 ) Computer Law Journal 197 at 217 ; Ferrari, F ( 1995 ) 'Specific Subjects of the CISG in the Light of Judicial Application and Scholarly Writing ' ( 15 ) Journal of Law and Commerce 1 at 66 ; Diedrich, F ( 1996 ) 'Maintaining Uniformity in International Uniform Law via Autonomous Interpretation: Software Contracts and the CISG ' ( 8 ) Pace International Law Review 303 at 336 ; Diedrich, F ( 2002 ) 'The CISG and Computer Software Revisited ' ( 6 ) Vindobona Journal of International Commercial Law and Arbitration, Supplement 55 at 64-65 ; Cox, T ( 2000 ) 'Chaos versus Uniformity: The Divergent Views of Software in the International Community ' ( 4 ) Vindobona Journal of International Commercial Law and Arbitration 3 at 6 ; Lookofsky, J ( 2003 ) 'In Dubio pro Conventione? Some Ideas about Opt-outs, Computer Programs and Preemption under the 1980 Vienna Gross saless Convention ( CISG ) ' ( 13 ) Duke Journal of Comparative and International Law 263 at 279 ; Mowbray, J ( 2003 ) 'The Application of the United Nations Convention on Contracts for the International Sale of Goods to E-Commerce Minutess: The Deductions for Asia ' ( 7 ) Vindobona Journal of International Commercial Law and Arbitration 121 at 127.

3. Herber, supra fn 2, at 23 ; Lookofsky Understanding supra fn 2 at 21 ; Schlechtriem in Schlechtriem & Schwenzer Commentary supra fn 2 at 29 ; Bridge The International Sale of Goods supra fn 2 at 520 ; Diedrich 'Maintaining Uniformity ' supra fn 2 at 336 ; Diedrich 'Revisited ' supra fn 2 at 64-65 ; Larson, M ( 1997 ) , Using Uniform Gross saless Law to International Software Transactions: The Use of the CISG, its Shortcomings, and a Comparative Expression at How the Proposed U.C.C. Article 2B would Rectify Them ' ( 5 ) Tulane Journal of International & Comparative Law 445 at 456-457 ; Cox 'Chaos versus Uniformity ' supra fn 2 at 8-9 ; Lookofsky 'In Dubio ' supra fn 2 at 279 ; Green, S and Saidov, D ( 2007 ) 'Software as Goods ' Journal of Business Law 161 at 166-167. However, Contras, Mowbray 'The Application ' supra fn 2 at 130.

15. Supreme Court ( Austria ) , 21 June 2005 ( Standard package on disc ) , available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/050621a3.html > . Although the facts are a small equivocal, the undermentioned instances most likely involve gross revenues of physical transcripts of standard package as good: Supreme Court ( Germany ) , 27 June 2007 ( Software instance ) , available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/070627g1.html > ; District Court München Germany ) , 8 February 1995 ( Standard package instance ) , CLOUT no 131, interlingual rendition available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/950208g4.html > ; Appellate Court 's-Hertogenbosch ( Netherlands ) , 19 November 1996 ( ICT v. Princen Automatisiering Oss ) , available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/961119n1.html > ; Regional Court Arnhem ( Netherlands ) , 28 June 2006 ( Silicon Biomedical Instruments B. V. v. Erich Jaeger GmbH ) , interlingual rendition available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/060628n1.html ; Commercial Court Zurich ( Switzerland ) , 17 February 2000 ( Software and hardware instance ) , interlingual rendition available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/000217s1.html > .

18. 'Denshishotorihiki oyobi Johozaitorihikito Ni Kansuru Junsoku [ Interpretive Guidelines on Electronic Commerce and Information Property Trading ] ' ( March 2007 ) released by the Nipponese Ministry of Economy, Trade and Industry ( METI ) distinguishes shrink-wrap licences in which the gross revenues aspect is a true sale, and those in which the marketer furnishes 'a right to reason a license understanding ' . Sing the latter, the guideline provides that the purchaser should hold the 'right to return the merchandise and to demand refund ' against the marketer, if it turns out after the purchase that the purchaser can non hold to the licensing footings.

26. CISG-AC Opinion no 4, Contracts for the Sale of Goods to Be Manufactured or Produced and Assorted Contracts ( Article 3 CISG ) . 24 October 2004. Rapporteur: Professor Pilar Perales Viscasillas. Universidad Carlos III de Madrid, available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cisg/CISG-AC-op4.html > , paragraph 4.2 ; Schlechtriem in Schlechtriem & Schwenzer Commentary supra fn 2 at 29 ; Green and Saidov 'Software as Goods ' supra fn 3 at 171. There are besides instances to that consequence: Regional Court Arnhem ( Netherlands ) , 28 June 2006 ( Silicon Biomedical Instruments B. V. v. Erich Jaeger GmbH ) , interlingual rendition available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/060628n1.html > ; Commercial Court Zürich ( Switzerland ) , 17 February 2000 ( Computer package and hardware instance ) , interlingual rendition available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/000217s1.html > .

30. Eastern High Court ( Denmark ) , 7 March 2002 ( Internet website development instance ) , available at < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/020307d1.html > ( handling web site development contract as a service contract alternatively of sale of goods in which the CISG would hold applied ) ; Appellate Court Köln ( Germany ) , 26 August 1994 ( Market analyze instance ) , supra fn 6 ( nevertheless, obiter pronouncement ) ; U.S. Court of Appeals, 27 May 1998 ( Evolution Online Sys. v. Koninklijke Nederland ) , available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/980527u1.html > ( non using the CISG to custom-make package as explained in US Court of Appeals, 5 May 2003 ( Chateau des Charmes Wines Ltd. v. Sabaté USA. Sabaté S.A. ) , available at: < hypertext transfer protocol: //cisgw3.law.pace.edu/cases/030505u1.html > ) .

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The merchandises being devised today and the electrical systems and constituents that power them are ever germinating. As merchandise design applied scientists, you are faced with the challenge of planing merchandises rapidly and expeditiously while keeping ever-increasing demands of critical applications. Mill-Max machined pin receptacles are known for their dependability, versatility and flexibleness, which make them a wise pick for a broad array of connection systems across a wide spectrum of industries including aerospace, military, medical, and merely approximately anyplace merchandise failure is non an option.

Academic Programs

The mission of the Electrical Engineering Department is to educate pupils to accomplish excellence in the subject of electrical technology and to learn them to use their instruction to work out practical jobs in a socially responsible manner. Students are prepared for callings of service, leading, and differentiation in a broad scope of technology and other related Fieldss utilizing a participatory, learn-by-doing, and “hands-on” research lab, undertaking, and design centered attack. Students are encouraged to take part in womb-to-tomb acquisition as indispensable in the presence of the ever-increasing gait of technological alteration.

The Electrical Engineering grade plans prepare alumnuss for distinguished pattern in professional technology ; fiting pupils for prosecuting technology solutions to pressing jobs while being responsibly cognizant of all deductions. To that terminal, the course of study provides a sound theoretical background along with current, practical technology cognition. Cal Poly 's `` learn by making '' doctrine is emphasized by incorporating design throughout the course of study in legion design-centered research labs that provide pupils with hands-on experiences in design synthesis, analysis, word picture, and confirmation.

During their junior and senior old ages, pupils choose proficient electives to derive extra expertness in one or more countries of specialisation within electrical technology. These classs trade with the development, design and application of circuits, electronic devices, computing machines, and systems for communicating, controls, information processing and show, and system instrumentality. Senior classs in this country provide specialized readying in a selected country such as active and inactive web synthesis, advanced communications systems, computing machine system design, microelectronic circuit technology, microprocessor systems applications, microwave technology, photonics, biomedical instrumentality, integrated circuits, and solid province devices.

Students are encouraged to take part in professional organisations and nines such as: Institute of Electrical and Electronics Engineers ( IEEE ) , IEEE Computer Society ( IEEE-CS ) , IEEE Consumer Electronics Society ( IEEE-CES ) , IEEE Power and Energy Society ( IEEE-PES ) , Audio Engineering Society ( AES ) , Cal Poly Robotics, Electric Vehicle Club, Renewable Energy Club, Society of Automotive Engineers ( SAE ) and the Formula Electric challenge, Society of Women Engineers ( SWE ) , Women involved in Software & Hardware ( WISH ) , Eta Kappa Nu ( HKN ) , Society of Photo-Optical Instrumentation Engineers ( SPIE ) , Student Electrical Engineering Council ( SEEC ) , and the Amateur Radio Cub. The Electric Power Institute, sponsored by the university and underwritten by major public-service corporation companies and electrical equipment makers, offers advanced seminars and talks in the electrical power field and facilitates pupil and module interaction with industry.

Prerequisites

For admittance as a classified alumnus pupil, an applier must keep a bachelor’s grade in technology or a closely related physical scientific discipline with a minimal class point norm of 3.0 in the last 90 one-fourth units ( 60 semester units ) attempted. Applicants for alumnus technology plans are required to subject satisfactory tonss for the General ( Aptitude ) Test of the Graduate Record Examination. Foreign appliers must hold satisfactory tonss on the TOEFL and TWE exams. An applier who meets these criterions but lacks prerequisite coursework may be admitted as a conditionally classified pupil and must do up any lacks before promotion to sort alumnus standing.

Plan of Study

A alone characteristic of the plan is to let the usage of a common undertaking for fulfilment of both the Master’s Thesis ( EE 599 ) and Senior Project ( EE 461/ EE 462 or EE 463/ EE 464 ) grade demand. As listed in the ABET technology plan accreditation standards, all pupils must be prepared for technology pattern via a course of study which culminates in a major design experience based on the cognition and accomplishments acquired in earlier coursework and integrating technology criterions and realistic restraints. Therefore, all `` Blended BS + MS plan '' pupils must hold a maestro 's thesis that specifically includes this major design experience demand, in order to finish their undergraduate grade. A module adviser serves as both the thesis commission president and the senior undertaking adviser.

How to Read Course Descriptions

The class description summarizes the intent and cardinal topical countries of the class, and includes particular demands if they exist. It indicates the manner of direction, such as talk and/or research lab ; if no manner is indicated, the class is supervised independent survey. If a class can be taken more than one time for recognition, the description will bespeak that either major recognition or entire recognition is limited to a specified figure of units. Some class descriptions end with information about whether the class was `` once '' another class or whether the class is cross-listed. A cross-listed class is the same class offered within multiple capable countries, MCRO/WVIT 301 Wine Microbiology for illustration.

Waveguides

Normally the mobility of negatrons additions as the electric field additions in a semiconducting material. In this device, there is a scope where the mobility of the negatrons really decreases as the electric field additions. Basically the current falls as the electromotive force rises. This means that for a narrow scope, the device exhibits a negative opposition. This is a really unstable state of affairs and the device has a inclination to hover when biased in this part. The existent frequence of oscillation is dependent on the physical size of the semiconducting material and occurs when the negatron theodolite clip is equal to one oscillation period.

Current Microware OS-9 Software Products:

If a user plan consists of multiple subtasks, these may be exported to other CPU´s, ensuing in a public presentation betterment that increases linearly with the figure of installed CPU units. Therefore, a cardinal system demand is the ability to get down undertakings on other CPU´s. This features is non provided by standard OS-9 merchandises. Thus the SimTech Multicomputer OS-9 has the `` Multicomputer Command Processor '' NRUN and the `` Multicomputer Remote Server '' SERVE. With NRUN, any procedure can be started on any CPU in the system. The lone premise is that the mark system has been antecedently prepared to move as a Multicomputer Remote Server by get downing SERVE.

The SimTech Multicomputer Operating System consists of the standard OS-9 operating system, OS-9 networking public-service corporations, and sophisticated multicomputer extentions. Therefore, it is hardware independent. Every CPU unit offered by SimTech can be used within a Multicomputer System. Furthermore, non merely the VMEbus, but besides an Ethernet or ARCNET web, or a consecutive nexus may be used as physical communicating channel. Therefore, the SimTech Multicomputer System is non merely applicable as a fast, cardinal processing system. It is besides ideally suited for the building of distributed, intelligent control systems.

Throughout this certification, a differentiation is made between `` constellation patterns '' and package. A constellation pattern is a specific manner of configuring bing system package, while a package constituent of the toolkit is a separate plan which may replace or heighten bing system package. Therefore, when the certification refers to the constellation pattern applicable to configuring some system devil in a secure mode, it is assumed that the base operating system in inquiry has bing support for that package, and that it is capable of being configured. The exact inside informations of how to configure assorted system public-service corporations differ from seller execution to vendor execution and are outside of the range of this papers. In general, most UNIX systems with BSD-style networking will back up all the functionality and services referred to herein.

Installing the toolkit assumes practical experience with UNIX systems disposal and TCP/IP networking. At a lower limit, a firewall decision maker should be familiar with put ining package and keeping a running UNIX system. Since constituents of the toolkit are released in beginning codification signifier, acquaintance with edifice bundles utilizing brand is required. The toolkit does non seek to supply a `` prison guard '' web firewall, since every installing 's demands, web topology, available hardware, and administrative patterns are different. Depending on how the toolkit is configured, different degrees of security can be achieved. The most strict security constellations are non for everyone, while for others anything less will non do. It is the duty of the firewall installer to understand the security policy of the web that is to be protected, to understand what constitutes acceptable and unacceptable hazards, and to apologize them with the demands of the terminal users. Performing this analysis is the hardest undertaking in implementing any security system. The toolkit, unluckily, can non make it for you ; it can merely supply the constituents from which to piece a solution.

The TIS Firewall Toolkit is designed to be verified for rightness as a whole or at a component degree. This appears to be a reasonably fresh attack for a web firewall, as many bing firewall systems rely on package that is `` known to be good '' or that is considered trusty because it has been used extensively for a long clip. One job with the `` known to be good '' attack is that historically it has n't been really dependable. Certain package constituents such as Mailers are often exploited in housebreakings, no affair how carefully they are maintained. Problem plans are frequently complex pieces of package, frequently implemented in several 10s of 1000s of lines of codification, which require system privileges in order to run. As a measure towards turn toing this, the firewall toolkit is designed to run along the basic design rules that:

One of import consideration in puting up a firewall is that it is, foremost and first, a margin defence. Firewalls do non supply any protection one time an aggressor has gotten past them. Having a firewall is correspondent to a big steel door as the front door to one 's edifice -- it provides first-class protection against frontal onslaught. To widen the analogy, if one 's security policy is such that a steel front door is required, one should besides hold steel shutters on the Windowss, and one should non hold linking doors to the adjacent edifices unless they have steel doors and shutters every bit good. In practical networking footings, this equates to basic steps such as procuring modem pools with watchwords, printing security criterions that clearly inform users of their duties, and analyzing any other webs that portion ( are `` inside '' ) the security margin. A individual user who decides to buy a consecutive line web connexion ( SLIP ) to an Internet service supplier can accidentally wholly besiege a really expensive security system. Having a firewall that uses strong hallmark mechanisms such as erstwhile watchwords or cryptanalytic reckoners while holding a modem pool that requires no watchwords at all indicates an inconsistent security pattern. When set uping a margin defence, the decision maker must first execute a hazard analysis, and so do certain that all the entry points into the web are protected every bit strongly. If two webs are being connected, and will portion a common security margin, so both webs should be protected to the same grade, with a systematically enforced shared security policy.

When implementing a firewall following the first attack, one identifies the services that will be provided, addresses the security of those services, blocks all other services and traffic off, and so enables the selected services merely one time they have been tested and are believed to be unafraid. In the 2nd attack, one identifies all the services that are believed to show hazards and disables or secures them. The first attack is more conservative, accepting that `` what we do n't cognize can ache us, '' but tends to enforce bounds on the types and figure of services that can be provided through the firewall. The 2nd attack is more various, since more services are supported, but runs the hazard of devolving into an arms-race between the decision maker and system crackers. Another of import consideration is the size of the prospective user community on the protected web. As the protected web grows larger and is harder to supervise wholly, it becomes progressively hard for an decision maker to verify that members of the user community are non themselves supplying services over the web that get around the security of the firewall. An illustration of such a job would be a user who decides to supply FTP service on a different port from the standard FTP port ( port 23 ) because the FTP service port is blocked by the firewall but the alternate port is non. Finally the firewall will necessitate to protect the web from onslaughts ( knowing or inadvertent ) from the interior every bit good as exterior.

There are several archetypical firewall constellations that the toolkit is designed to back up. For a more in-depth expression at assorted basic signifiers of firewalls. The primary types of firewalls the toolkit is designed to back up are dual-homed gateways, screened host gateways, and screened subnet gateways. In these firewalls, the of import common factor is a host ( a `` bastion host '' ) which acts as an application forwarder, traffic lumberman, and service supplier. Keeping security on the bastion host is of paramount importance, and this is where most of the attempt of puting up the firewall is focused.

Dual-homed gateways are an appealing firewall, since they are simple to implement, necessitate a lower limit of hardware, and can be verified easy. Most Berkeley-based UNIX executions have a meat variable _ipforwarding, which indicates to the operating system that it should non route traffic between webs, even if it is connected to two ( which would usually do the system to move as a gateway router ) . By wholly disenabling routing, the decision maker can hold a high grade of assurance that any traffic between the protected web and the untrusted web is someway go throughing through an application that is running on the firewall. Since there is no traffic transferred straight between the internal web and the untrusted web, it is non necessary to demo any paths to the private web over the untrusted web. This efficaciously renders the protected web `` unseeable '' to any systems except the bastion host. The lone disadvantage of this type of firewall is that it is implicitly a `` That which is non expressly permitted is prohibited '' firewall -- and it 's impossible to weaken the firewall 's security to allow a service through even if one later decides one wants to. All services must be supported via placeholders on the firewall.

A screened host gateway relies on a router with some signifier of package testing capableness to barricade off entree between the protected web and the untrusted web. A individual host is identified as a bastion host, and traffic is permitted merely to that host. The package suite that is run on the bastion host is similar to a dual-homed gateway ; the system must be every bit secure as possible, as it is the focal point for onslaught on the web. Screened host gateways are a really flexible solution, since they offer the chance to selectively license traffic through the showing router for applications that are considered trusty, or between reciprocally trusted webs.

The disadvantage of this constellation is that there are now two security critical systems to be cognizant of: the bastion host and the router. If the router has entree control lists that license certain services through, it becomes an extra point of complexness to concern the firewall decision maker. Verifying the rightness of a screened host firewall is a little more hard, increasing rapidly in trouble as the figure of services permitted through the router grows. Screened host firewalls besides introduce direction hazards -- because the capableness exists to open `` holes '' in the firewall for particular applications or influential users, the firewall decision maker must be careful to defy force per unit area to invariably be modifying the showing regulations in the router.

In a screened subnet firewall, a little stray web is placed between the sure web and the untrusted web. Entree to this web is protected by testing regulations in routers, which restrict traffic so that hosts on the screened subnet are the lone systems approachable by both webs. Conceptually, this is the dual-homed gateway attack, applied to an full web. The chief public-service corporation of this attack is that it permits multiple hosts to be on the `` outside '' web ( sometimes referred to as the `` demilitarized zone '' ) . An extra advantage to screened host subnets is that the firewall administratok. This efficaciously renders the protected web `` unseeable '' to any systems except the bastion host. The lone disadvantage of this type of firewall is that it is implicitly a `` That which is non expressly permitted is prohibited '' firewall -- and it 's impossible to weaken the firewall 's security to allow a service through even if one later decides one wants to. All services must be supported via placeholders on the firewall.

A screened host gateway relies on a router with some signifier of package testing capableness to barricade off entree between the protected web and the untrusted web. A individual host is identified as a bastion host, and traffic is permitted merely to that host. The package suite that is run on the bastion host is similar to a dual-homed gateway ; the system must be every bit secure as possible, as it is the focal point for onslaught on the web. Screened host gateways are a really flexible solution, since they offer the chance to selectively license traffic through the showing router for applications that are considered trusty, or between reciprocally trusted webs.

The disadvantage of this constellation is that there are now two security critical systems to be cognizant of: the bastion host and the router. If the Ro, over a public broad country web. In the illustration, the encoding is separate from the router, but need non be, if integrated encrypting routers are available. Presently, there are several merchandises that act as coding Bridgess at a frame degree ; i.e. , they examine the beginning and finish reference of all packages geting on one interface, and retransmit the package out the other. If the encrypting bridge/router is configured to code traffic to a specific web, the package information is encrypted, and a new checksum is inserted in the heading. Once the package is received at the other side, the equal coding bridge/router determines that it is from a web with which the router is coding traffic, and decrypts the package, patches the checksum, and retransmits it.

Person stoping traffic between the two encrypting webs would see merely useless cypher text. An extra benefit of this attack is that it protects against efforts to shoot traffic by burlesquing the beginning web reference. Unless aggressors know the cypher key that is in usage, their packages will be encrypted into debris when they go through the encrypting bridge/router. If the coding bridge/router gets traffic for a web with which it is non to code, traffic is transmitted usually. In this mode, a firewall can be configured, with encrypted `` tunnels '' to other webs. For illustration, a company could safely portion files via NFS or utilize weakly authenticated web login plans, like rlogin, in safety over their encrypted nexus, and still hold a strong firewall protecting entree between the corporate margin and the remainder of the universe. A similar attack could be employed between two companies that wished to set up a concern connexion for proprietary information, in which traffic between the firewall bastion host on one corporate web and the firewall bastion host on the other corporate web was automatically encrypted.

Firewalls can be configured to be impermeable from the `` outside '' web, but sometimes it is of import to allow users to entree systems on the protected web from the untrusted web. Traveling staff, staff at conferences with web entree, or clients may all necessitate to log in over untrusted web links. In these state of affairss, normal watchword protection is deficient, since most applications that use watchwords pass them in the clear over the web, where they can be compromised by anyone with a packet-sniffer or tantamount package. In this type of hostile environment, erstwhile watchwords or challenge/response reckoners should be used. Erstwhile watchwords are watchwords that are generated by a user prior to go forthing a installation, and which are used consecutive in an agreed-upon mode with the system. If the watchword is compromised, it is non a security menace, since the watchword is ne'er re-used. Challenge/response reckoners use a secret shared between the system and a portable reckoner or smart card to bring forth an encoding of a random challenge each clip the user efforts to log in. Since the lone individual who could bring forth the correct encrypted response to the challenge is the user with the specific reckoner, the system can authenticate the user without holding to interchange a cleartext watchword.

The toolkit supports erstwhile watchwords or challenge/response systems by including support in the placeholder waiters for a simple hallmark protocol. This hallmark protocol is served by a `` middleware '' hallmark server that can implant support for multiple signifiers of hallmark systems at the same time. The proxy waiters can be configured to necessitate hallmark ( or non ) based on the beginning or finish of the service petition. In this mode, the toolkit provides really flexible constellation of hallmark. An decision maker typically configures the placeholders to necessitate no hallmark on surpassing petitions, but, possibly, to necessitate strong hallmark for incoming service petitions.

SMTP is implemented utilizing a brace of package tools called smap and smapd. Generally, SMTP mail poses a menace to the system, since Mailers run with systems-level permissions in order to present mail to users ' letter boxs. Smap and smapd reference this concern by insulating the Mailer so that it runs in a restricted directory via chroot, as an unprivileged user. Smap and smapd do non turn to any issues associating to get off spoofing or denial of service onslaughts via mail. Smap 's primary intent is to insulate a notoriously balmy plan which has been implicated in many housebreakings in the yesteryear. The majority of the existent mail-processing work is performed usually by sendmail, necessitating no alterations to sendmail or its constellation file. When a distant system connects to the SMTP port, the operating system invokes smap, which instantly chrootsto its restricted directory and sets its user-id to an unprivileged 1. Since smap requires no system support files, the restricted directory can incorporate no files other than those that smap creates. There is no hazard of smap being tricked into modifying system files ( because it is chrooted ) , and there is no manner an synergistic session can be obtained via smap ( there are no executables in the smap bobbin directory ) . Smap 's exclusive intent is to speak SMTP with other systems, gather mail messages, compose them to harrow, bring forth log entries, and issue. The 2nd portion of mail processing does non run chrooted to a restricted directory, but still does non necessitate permissions ; smapd is responsible for scanning the smap bobbin directory sporadically and subjecting the queued messages to sendmail for concluding bringing. Note that if sendmail is configured usually and smapd is running with the uucp user-id mail can be delivered usually without necessitating smapd to run with enhanced permissions. When smapd delivers a message, it clears the file from the spool country.

Inetd contains no proviso for entree control ; i.e. , it will allow any system on the web to link to a service that is listed in inetd.conf. There are several state of affairss where general purpose entree control on web services is desirable, and tools to implement such control have been available on the Internet for several old ages. Netacl is the toolkit constituent which manages web entree control. It permits arbitrary entree control specification for each web service based on the client host 's web reference, and the service requested. Therefore, one client ( specified either by IP-address or host name ) might raise a different version of telnetd when it connects to the TELNET service port on the firewall.

Many services that are disabled by default, such as finger, can be selectively enabled for hosts within the private web. Netacl besides plays an of import function in the constellation patterns employed for other services such as anon. FTP, since it can be configured to execute a chroot prior to raising a given service. This functionality provides a great trade of flexibleness for stipulating services that should run under isolation. For illustration, a finger proxy service can be implemented by configuring netacl to raise fingerd as an unprivileged user, chrooted to an empty directory. Prior to fingerd 's executing, it will be placed in isolation ; if there is a security hole in fingerd, it can non be efficaciously exploited, since no file system or executables will be available to the aggressor.

The security of netacl relies on IP-addresses and/or host names. For security-critical applications control, IP-addresses should be used, to avoid usage of the Domain Name System ( DNS ) to burlesque the beginning of the connexion. Netacl does non protect against onslaughts utilizing spoofing of IP-addresses via beginning routing or other agencies ; if such onslaughts are a concern, a router that is capable of testing beginning routed packages should be employed. The security of the cyberspace devil inetd is assumed in this constellation. Netacl is designed to be easy to analyze for rightness, dwelling of 240 lines of C codification ( including remarks ) ; it is a really simple plan. Care should be taken in configuring it.

The ftp-gw poses no menace to the security of the firewall system itself, since it runs chrooted to an empty directory and does no file I/O other than reading its constellation file. Since emulating the FTP protocol is slightly complex, ftp-gw is about 1,300 lines of beginning codification and is somewhat less easy to verify by scrutiny than other constituents of the toolkit. The FTP gateway is merely intended to supply entree to FTP services, and does non turn to issues of who is authorized ( or non ) to export files. Support for strong user hallmark can be attached to the gateway, to necessitate user hallmark prior to exporting or importing files. The FTP gateway is a utile tool, which should be implemented in conformity with a consistent site informations security policy. The toolkit includes beginning codification for a modified version of the FTP devil which permits an decision maker to supply both FTP service and FTP proxy service on the same system.

Certain services such as Usenet intelligence are frequently provided through a firewall. In such state of affairss, the decision maker has the pick of either running the service on the firewall itself, or put ining a proxy waiter. Since running intelligence straight on the firewall exposes the system to any bugs in the intelligence package, it is safer to utilize a placeholder to gateway the service onto a `` safe '' system on the protected web. Plug-gw is a general intent placeholder that `` stoppers '' two services together transparently. Its primary intent is for back uping Usenet intelligence, but it can be employed as a all-purpose placeholder if desired.

In general, plug-gw is installed on the firewall, so that when a distant system connects to the NNTPport it automatically reconnects to a designated intelligence waiter on the interior web. If the intelligence waiter on the interior web connects to the intelligence port on the firewall, plug-gw automatically reconnects to a designated intelligence waiter on the outside web. This mutual connexion is based on the IP-address of the originally linking host. Once plug-gw is connected, it merely copies informations until one side or the other shuts down the connexion, at which point it exits. Plug-gw is configurable to selectively allow or deny connexions based on IP-address/host name. All connexions and bytes transferred are logged.

Plug-gw can move as a general portal between the protected web and the outside web ; hence, it should be used meagerly and with cautiousness. Since it acts merely as a information pipe, it performs no local disc I/O, and invokes no subshells or procedures. In the general instance of usage for intelligence, plug-gw provides first-class security, since it permits an outside system bi-directional communicating with a individual port on an internal intelligence waiter, while still barricading all other traffic. In a sense, plug-gw is similar to adding a constellation regulation to a router that permits traffic merely between two systems on a individual port, except that it logs all minutess.

The web hallmark waiter authd provides a generic hallmark service for web applications. Its usage is optional, required merely if the firewall proxies ftp-gw and tn-gw are configured to necessitate hallmark. Authd 's intent is to supply a generic interface to multiple signifiers of hallmark. For big organisations, where several signifiers of hallmark challenge/response cards are in usage, authd can associate them all together to utilize a individual database. A simple administrative shell is included that permits the hallmark database to be manipulated over a web, with optional support for encoding of hallmark minutess. The authd database supports a basic signifier of group direction ; one or more users can be identified as the decision maker of a group of users, and can add, cancel, enable, or disable users within that group. Authd internally maintains information about the last clip a user authenticated to the waiter, how many failed efforts have been made, and can automatically disable histories that have multiple failures. Extensive logs are maintained of all authd minutess. Authd is intended to run on a secured host, such as the bastion host, since its database is a possible point of onslaught.

The toolkit includes a login plan named login-sh for user hallmark. This version contains support for a assortment of hallmark protocols utilizing nominal appraisers such as Security Dynamics ' SecurID, Digital Pathways ' SecureNet Key, and the Racal Watchword. The login plan replaces the user 's initial shell, and requires him to authenticate anterior to raising his normal bid translator. This attack provides good login security without necessitating alterations to the vendor-provided login plan, and can be activated on a per-user footing. The toolkit version of login provides enhanced logging over the standard version, logging successful logins every bit good as failed ones.under building

MDS is a universe taking single-source, end-to-end industrial radio communications supplier. From wellhead monitoring to public-service corporation substation mechanization and SCADA applications, our industrial radio routers and modems are packaged, rated and tested to harsh specifications. Our communications portfolio includes wireless wirelesss for unaccredited and accredited narrowband communicating in a assortment of frequences, and industrial 2G, 3G, and 4G LTE cellular routers and gateways. These wireless webs carry consecutive and IP/Ethernet traffic, every bit good as parallel and digital I/O signals connected straight to field devices and detectors, suiting an extended array of industrial protocols.

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