Oil Refinering Using Linear Programming Essay Example

Oil Refinering Using Linear Programming Essay INTRODUCTION My topic is oil refinering using linear programming, this is under petrochemical industries which mean it will deal more about chemicals, this is about optimising the cost using a modelling method in mathematics called linear programming. This is very important because it links what is done in petrochemical industries with mathematics. Since there is a huge need of the products that are produced after petroleum refinering which are petrol, gasoline, oil, diesel and etc so in the near future refiners and government will have to make decision to increase local refinering capacity or upgrade and expand the existing refineries(  (SAPIA) executive director  Avhapfani Tshifularo said so. Currently South Africa is unable to produce sufficient fuel so at forces it to import refined products. we can describe oil refinering as an industrial process plant where crude oil is processed and refined into more useful products which are petroleum naphtha, gasoline diesel fuel etc. rude oil that is processed can be defined as a natural occurring flammable liquid which consist of mixture of hydrocarbons of different molecular weight and other liquid organic compounds. In the oil refinering, different products are made and are said to be bases or components, which are alkalyte, platform ate, penexate and COD gasoline, these produc ts are stored in tanks. These are the main products we have in refinering . the reason for blending the components is to minimise cost. We will write a custom essay sample on Oil Refinering Using Linear Programming specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Oil Refinering Using Linear Programming specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Oil Refinering Using Linear Programming specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Since the type of product that is needed by the market is RON 95 when blending or mixing these components an octane booster must also be included. This is called gasoline blending which can be described as a fuel that is derived from petroleum crude oil; it is also blended or mixed with different hydrocarbons which are estimated to be about 200. When blending the components we are trying to minimize the cost, because we take very expensive components which are alkylate and platform ate and mix with cheap components like penoxate and COD gasoline. Linear programming is a reliable method in solving such problems; it is a very good technique in minimising the cost. When maximising the sale revenues we use linear model, 1 of the mathematical tool. We have to consider the availability of the components, their physical properties and the products needed by the market which is RON 95. The purpose of gasoline blending is to optimise the generation of valuable products such as gasoline wich I mentioned above and even to satisfy the demand for the market.

Argumentative Essay Topics For College Students

Argumentative Essay Topics For College StudentsGood argumentative essay topics for college students can be hard to come by. In fact, many times, you can be forgiven for thinking that it is impossible to write a good argumentative essay that will stand out from the crowd. If you are reading this article, I am pretty sure that your feeling is not 'been there done that'.The best thing that you can do for yourself when trying to come up with good argumentative essay topics for college students is to get help. That's right, get some feedback and advice. Do not sit in front of the computer typing away trying to come up with ideas for an essay topic. Get yourself out there and find some good feedback.One of the things that you can use to help you find good argumentative essay topics for college students is to look for free online resources. This is the easiest and fastest way to see what people are writing about in your area. Online article databases are filled with information that is free ly available to anyone who is interested in putting that piece of content on the web. Of course, this will only be useful to you if you do some research. It is very important to find out where other people are finding good content.Another option is to read some books written by experts in their field. You can't really go wrong with this one. In order to make sure that you aren't reading about topics that already exist, you should also read some literature that is new to you. Again, this will help you see what works and what doesn't. After all, you don't want to fall back on a topic that is already heavily covered.The best thing to do is to look at what has been successful in the past and then take the advice from that and apply it to your own essay topics. You want to use material that is controversial and that is new. This is going to keep you out of the bottom ten of every category and to give you the chance to come up with some really cool material.You also need to remember that there is something called the herd mentality that is going to be running around here as well. Yes, you will need to get your voice heard if you want to stand out. You can't really afford to be dull or boring. This is where hiring an article writer or freelance writer comes in handy.Once you have accomplished all of these things, you will be able to come up with some really good argumentative essay topics for college students. You will be able to come up with topics that are original and that is something that you really enjoy writing about. And you will be able to convince your fellow writers that your opinions are worth considering. Just make sure that you come up with something that is timely.Hopefully by now you realize that when you are trying to come up with good argumentative essay topics for college students, you need to try and use the suggestions that I have given you. You want to do some research and then use that research to help you come up with a great piece of writing. You may even want to get advice from your fellow writers and even think about hiring a writer to help you out.

Why a Works Cited is Necessary for Research Paper Writers

Why a Works Cited is Necessary for Research Paper WritersA good research paper works cited is one of the best tools for your career. Some people might call this a bibliography, and that is fine for those who don't have enough to cite. However, this tool is needed for every scientist.Research papers have references, as do all of the reference lists in your book. If you write your own book, you might put them in the back or inside, but most people have a reference list handy that is valuable. You are no different, and in fact the one you use for your own research paper may not be the same as the one that the university will use to evaluate your research.If you choose not to use a works cited, then the best thing you can do is find a list that works and use it for your other publications. This is your only option. This works cited list is much like a bibliography. If you want to make sure your research papers are fully cited and your references are properly attributed, you will need to use the works cited list.Your research paper works cited is an author resource that contains the name and website of the school, university, or department where you are submitting your research. It should also include their contact information and a link to their webpage. This is the best way to get your work in front of reviewers and potential employers.These websites usually have one or more references lists included in the resource box. Just like with a bibliography, if you write your own book, this is your only option. However, if you do not write your own book, your university's list is the best thing to put in your resource box.It doesn't matter whether you write your own books or whether your work is funded by the government or a private foundation. The works cited tool is used for all kinds of work. It is helpful to both a researcher and a writer.These websites make it easy for all of us to write and sometimes even to read. For example, if your dissertation is due within six months, you might not be able to visit your college library and look up each reference. If you do not use the works cited list, you might not find out about the reference until six months later, when your college library tells you about it in a letter.It is important for a scientist to have the works cited. This helps ensure that your work is properly evaluated and that people know that you wrote it. Using the right tool to write your research paper will save you time, and you will become more successful as a researcher.

Can a University Essay Writing Service Help You?

Can a University Essay Writing Service Help You?Universities and colleges require that every student who applies for admission to take a college essay. A student's performance in an essay helps to determine whether he or she is a good writer, and if a student is not good enough the school will not admit him or her. If a student does not write a good essay he or she will likely be turned down for admission.Some students have all the time in the world to write their own college essay. Others need a little help and have already done this at school. There are also those students who would love to have a college essay but cannot write one. Such students often turn to a university essay writing service to help them out.Students should realize that their grade in a college essay is only a reflection of their ability to communicate clearly and the more thought they put into the composition of the essay the better it will be. Writing is not a one-time thing. As the student matures, they learn new skills that allow them to express themselves better and become better writers. The more you try to improve your writing skills, the more you will be able to communicate your ideas better, and the higher your college grade will be.Every college essay writing service has a team of experts that specialize in writing essays. They have degrees and specializations in various areas of literature. Their job is to make sure that every student is getting the job done on time and on purpose. One of the most important parts of this process is they are going over each student's essay line by line. This is so that they can tell you if your essay is on the level, and then we can ask your opinion on the paper.An opinion can be given about a student's essay if the student brings a copy of the paper to one of the essay writing services. After you have finished reviewing your paper they can give you an opinion about it. An opinion usually tells you what you did well, what you did wrong, and if yo u need to revise a section of the essay or make any changes.Many students do not take the time to read their essay until the last minute. If you have made a mistake in a section or word you are very likely to forget it. The essay writing service will go over the entire piece of paper and look for the errors that you have made. Any mistakes you need to make will be pointed out so that you can make a conscious effort to fix them.You do not want to be doing all of the editing on your own. You will need someone else to review the work, and that is something that they do not have to pay for. They will simply charge you a flat fee and will give you a quality written piece. It is worth the price to get a top ranking.

Top Characteristics of Ancient Civilizations

Top Characteristics of Ancient Civilizations The phrase top characteristics of civilization refers both to the features of societies that rose to greatness in Mesopotamia, Egypt, the Indus Valley, Chinas Yellow River, Mesoamerica, the Andes Mountains in South America and others, as well as to the reasons or explanations for the rise of those cultures. Why those cultures became so complex while others faded away is one of the great puzzles that archaeologists and historians have attempted to address many times. The fact that complexity happened is undeniable. In a short 12,000 years, humans, who organized and fed themselves as loosely associated bands of hunters and gatherers eventually developed into societies with full-time jobs, political borders, and detente, currency markets and entrenched poverty and wristwatch computers, world banks, and international space stations. How did we do that? So, What is a Civilization? The concept of a civilization has a fairly grubby past. The idea of what we consider a civilization grew out of the 18th-century movement known as the Enlightenment  and the term is often related to or used interchangeably with culture. These two terms are tied up with linear developmentalism, the now-discredited notion that human societies evolved in a linear fashion. According to that, there was a straight line that societies were supposed to develop along, and ones that deviated were, well, deviant. That idea allowed movements such as kulturkreis in the 1920s to brand societies and ethnic groups as decadent or normal, depending on what stage of the societal evolution line scholars and politicians perceived them to have achieved. The idea was used as an excuse for European imperialism, and it must be said still lingers in some places. American archaeologist Elizabeth Brumfiel (2001) pointed out that the word civilization has two meanings. First, the definition arising from the grubby past is civilization as a generalized state of being, that is to say, a civilization has productive economies, class stratification, and striking intellectual and artistic achievements. That is contrasted by primitive or tribal societies with modest subsistence economies, egalitarian social relations, and less extravagant arts and sciences. Under this definition, civilization equals progress and cultural superiority, which in turn was used by European elites to legitimize their domination of the working class at home and colonial people abroad. However, civilization also refers to the enduring cultural traditions of specific regions of the world. For literally thousands of years, successive generations of people resided on the Yellow, Indus, Tigris/Euphrates, and Nile rivers outliving the expansion and collapse of individual polities or states. That sort of a civilization is sustained by something other than complexity: there probably is something inherently human about creating an identity based on whatever it is that defines us, and clinging onto that. Factors Leading to Complexity It is clear that our ancient human ancestors lived a far simpler life than we do. Somehow, in some cases, in some places, at some times, simple societies for one reason or another morphed into more and more complex societies, and some become civilizations. The reasons which have been proposed for this growth in complexity range from a simple model of population pressure- too many mouths to feed, what do we do now?- to the greed for power and wealth from a few individuals to the impacts of climate change- a prolonged drought, a flood, or tsunami, or a depletion of a particular food resource. But single-source explanations are not convincing, and most archaeologists today would agree that any complexity process was gradual, over hundreds or thousands of years, variable over that time and particular for each geographic region. Each decision made in a society to embrace complexity- whether that involved the establishment of kinship rules or food technology- occurred in its own peculiar, and likely largely unplanned, way. The evolution of societies is like human evolution, not linear but branched, messy, full of dead ends and successes not necessarily marked by the best behavior. Nevertheless, the characteristics of burgeoning complexity in a prehistoric society are pretty much agreed upon, falling roughly into three groups: Food, Technology, and Politics. Food and Economics increasing sedentism- a reduction in the amount of mobility within a society, allowing or requiring people to settle down in one place for longer periodsthe need to produce a stable and reliable source of food for your group, whether by growing crops, called agriculture; or raising animals for milking, plowing or meat, called pastoralismthe ability to quarry and process tin, copper, bronze, gold, silver, iron and other metals into usable objects, known  as metallurgythe creation of tasks that require people who can dedicate part or all of their time to complete, such as textile or pottery production, jewelry production and referred to as craft specializationenough people to act as a workforce, be craft specialists and require the stable food source, referred to as high population densitythe rise of urbanism, religious and political centers, and socially heterogeneous, permanent settlementsthe development of markets, either to meet the demands of urban elites for food and status goo ds or for common people to enhance the efficiency and/or economic security of their households Architecture and Technology the presence of large, non-domestic buildings constructed to be shared by the community, such as churches and shrines and plazas and collectively known as monumental architecturea way to communicate information long distances within and outside of the group, known as a writing systemthe presence of a group level religion, controlled by religious specialists such as shamans or priestsa way to know when the seasons will change, by means of a calendar or astronomical observationroads and transportation networks that allowed communities to be connected Politics and People Control the rise of trade or exchange networks, in which communities share goods with one another, leading tothe presence of luxury and exotic goods, such as baltic amber), jewelry made from precious metals, obsidian, spondylus shell, and a wide variety of other objectsthe creation of classes or hierarchical posts and titles with different levels of power within the society  called social stratification and rankingan armed military force, to protect the community and/or the leaders from the communitysome way to collect tribute and taxes (labor, goods or currency), as well as private estatesa centralized​ rule, to organize all those various things Not all of these characteristics necessarily have to be present for a particular cultural group to be considered a civilization, but all of them are considered evidence of relatively complex societies. Sources Al-Azmeh, A. Concept . International Encyclopedia of the Social Behavioral Sciences (Second Edition). Ed. Wright, James D. Oxford: Elsevier, 2015. 719–24. Print.and History of CivilizationBrumfiel, E. M. Archaeology of States and Civilizations. International Encyclopedia of the Social Behavioral Sciences. Ed. Baltes, Paul B. Oxford: Pergamon, 2001. 14983–88. Print.Covey, R. Alan. Rise of Political Complexity. Encyclopedia of Archaeology. Ed. Pearsall, Deborah M. New York: Academic Press, 2008. 1842–53. Print.Eisenstadt, Samuel N. Civilizations. International Encyclopedia of the Social Behavioral Sciences (Second Edition). Ed. Wright, James D. Oxford: Elsevier, 2001. 725–29. Print.Kuran, Timur. Explaining the Economic Trajectories of Civilizations: The Systemic Approach. Journal of Economic Behavior Organization 71.3 (2009): 593–605. Print.Macklin, Mark G., and John Lewin. The Rivers of Civilization. Quaternary Science Reviews 114 (2015): 228â₠¬â€œ44. Print.Nichols, Deborah L. , R. Alan  Covey, and Kamyar Abdia. Rise of Civilization and Urbanism. Encyclopedia of Archaeology. Ed. Pearsall, Deborah M. London: Elsevier Inc., 2008. 1003–15. Print.

Case Study--Canyon Study Example | Topics and Well Written Essays - 250 words

--Canyon - Case Study Example Though being highly staffed to serve its purpose, it was not well integrated with the other departments. This explains why, despite indicating the fastest growth, it accounted for the lowest contribution to profitability. All the three departments are interdependent as Michael Tompkins, assistant general manager at Lenox), said. Some recommendations in one department required an elevated level of service in another department. The spa clubs lacked a strong health and healing component and the synergy between the spa clubs was still a little tenuous. The Canyon Ranch would serve better in the place of a personalization strategy. The ranch should engage in real time personalization. It should customize every customer’s experience at the place. Having what the client need, when it is needed, would engage them in a personalized interaction in real time. Clients tend to tune out anything that is not relevant to them. By integrating the three departments, the services offered will be much easier to access which means that the general operations will improve. A strong customer base, in addition to a satisfactory service, is vital to ensuring a client’s second visit at the ranch. Another personalization strategy is to build long term relationships. This can be implemented by maintaining the records of every client and ensuring constant communication. This will make the client feel appreciated and actually warrant multiple visits. By the actual personalization of the systems, a client would not only know Canyon Ranch as a spa club, but as a wellness centre. Upgrading its website for the sake of those who search for the place online would ensure that a prospective client would have the complete idea of the ranch (Uehlein, p

Password Cracking Systems Research Paper Example | Topics and Well Written Essays - 5000 words

Password Cracking Systems - Research Paper Example The research paper "Password Cracking Systems" discusses the password cracking systems in detail. Password cracking is a process of accessing a computer system, network or resource with or without making use of software applications to open a resource that has been locked with a password. E-authentication (Electronic authentication) is a way of authenticating the client identities offered to an information system via electronic means. However, the e-authentication can create a technological issue for the reason that this procedure engages the remote or distant verification of particular people by using a digital communication network, intended for the idea of electronic administration and business. In fact, this idea offers practical directions to the corporations to authorize a single person to distantly confirm his/her uniqueness to a Federal IT arrangement. However, this way of management tackles simply customary, extensively applied techniques intended for remote verification based on secrecies. Moreover, through these techniques, the person who has to be authenticated verifies that he or she recognizes or possesses a number of confidential data and information. In this scenario, the majority of verification systems are basically dependent on secret passwords. But unluckily, the uncertainty and extent of user selected secret passwords to turn out to be permanent even after a long period. In difference, a hardware development continually provides attackers growing computational control. Thus, password methods like that customary UNIX user-authentication structure are becoming unsuccessful with the passage of time (Provos & Mazieres, 2002). Password cracking is a way of trying to access or crack passwords in an attempt to enter into a computer system or a communication network. In addition, crackers usually make use of a range of scripts, tools or cracking software to break a communication system password. In this scenario, the prime objective of the cracker is to perfectly get the password of server (UNIX) or other system and for Windows and NT. Moreover, the process of password cracking starts by matching each protected dictionary word with information stored in the system secret password file so that a match could be found (Webopedia, 2011) . Security management is one of the major concerns in this age of technology. However there is a large number of technology based applications those are breaking and disturbing such security settings. Password cracking systems are one of such systems those are used to breach the security of any system (Nash, 2000) and (Snyder, 2006). In the upcoming sections this paper will analyze such password cracking systems and their possible functioning. TECHNOLOGY EVOLUTION After the evolution of technology based systems microprocessors developed quickly, so does the pace of cryptographic digital software. In this scenario, speedy cryptographic technique offers a lot of chances for making application system safer. It makes encryption exploitable for a broad variety of systems. In addition, it offers superior standards of adjustable protection metrics like that secrete key length. However, growing security limitations make it very difficult to crack cryptography (or at any rate super-polynomia lly), dwarfing a number of advantages quickly hardware can present invaders. However, there is a security challenge in way of its implementation that is the extent and uncertainty of client selected passwords does not level in any way with computing control. Despite the fact that many systems need users to choose secret passwords for verification, some in fact acclimatize their algorithms