Sunday, October 6, 2019
Site Management and Engineering Essay Example | Topics and Well Written Essays - 1250 words
Site Management and Engineering - Essay Example For further safety of the site, an additional gate is placed just in front of the construction area, this is for occasional use. For instance movement of formwork when it is no longer required, this will not disrupt the movement at the entrance and in movement corridors, further making the site safe. The plant area is kept just in front of the construction area, as it will avoid to and fro movement of materials to construction site and save money, manpower and time. The junk area and storage area is kept at the corner end, this place will have minimum disturbance to corridor movement, will be safe from any theft and access to general public could be monitored as it is far from the working area. Lastly the rest area and cafeteria is kept opposite and away from the construction area, this will have a psychological effect on the workers as they will feel easy and this area will have least construction activities, hence least safety supervision will be required in this crowded area. Q 2 a) The most appropriate formwork system for in-situ concreting of lift walls would be Jump formwork system. This system consists of two components one being the formwork itself and the other the working platform from which the steel is fixed, concrete is poured. This type of formwork is self supporting and is most suitable for vertical elements such as lift walls. As the formwork is designed for staged processing hence it enables the speedy and efficient construction. The material of choice for our construction site would be Steel, this enables a perfect surface finish. But these steel frames must be properly designed before concrete is poured. The individual panels are attached to the frames which have different supporting conditions such roller support, once the concrete is poured and set, the panel is rolled back and a perfect finish is acquired. In the next process the jacks and lifting mechanism lifts the whole frame up one stage. The process is repeated again where panels are attached and then concrete is done. This shift of formwork and its components can take as less as 2 hours. This gives speedy and time effective solutions. Some of the views of the system made by Transkon FormworkSystem, are given in the figures below. Transkon are specialist of the field and renowned for new innovative formwork solutions. Q2 b) Although, the jump formwork provides several benefits such as the increase in construction speed and low resource requirement in terms of manpower. But at the same time it possesses considerable hazards against safety of workers and failure of formwork structural system. As mentioned earlier the formwork is self-supporting and self-climbing, hence there is the chance of structural failures of formwork, in case any joint or member fails and damages will be collateral. The first step towards safety is properly checked safe design of formwork and falsework. As these formworks work at a height hence an efficient free-fall breaking devices must be incorporated in the design. Then the platform in use must always be clear from any unnecessary material and waste should be removed as soon as possible. In addition a well maintained false work must be used for erection of the formwork and the platform. Each component must be oiled and painted properly. If excessive damages are seen in these parts they must be replaced. As our material of choice for false work and formwork is steel and metals hence corrosion of these components is to be monitored by the safety supervision team. Braces must be fastened properly, edge protections should be erected on the corners.Ã Ã Ã
Saturday, October 5, 2019
Politicians and Elections Essay Example | Topics and Well Written Essays - 750 words
Politicians and Elections - Essay Example The expectations of the electorate regarding personal conduct and characteristics of politicians, immensely impacts the decisions of voters on the people to choose during the election period (Thurber, 2004). The perceptions held by the electorate significantly affects the decision making process of the electorates. Within political scenarios, various challenges define the success of political campaign, including the presence of a crisis and the ability to handle the crisis amicably. These perceptions commonly occur in three dimensions of personals character, associated individuals and characteristics regarding the citizenship of the person. During the campaign period, the politicians aim at convincing the electorate to change the negative perceptions held, regarding the politicians. The rhetoric method of self defense could be utilized in damage control of an individualââ¬â¢s political character, as well as personal character. Though the method could be identified as containing pa ranoia or arrogance, the utilization of the method by George Hansen enabled him to continually get re-elected into the United States congress. The character of this politician underwent serious scrutiny within the congress, and outside the congress. During the campaigning period, Hansen continually employed the method of delivering rhetorical speeches as a way of seeking to convince the electorate about his questionable character. The issues arising within the political scenario, surrounding Hansen, centered on his personal behavior and professional conduct (Short, 1987). This included felony charges and accusations of providing false information regarding his wealth. While defending his political character during the election period, Hansen immensely utilized rhetoric speech to persuade the electorate otherwise, regarding his tainted political character. Voters appear to consider the character competence of politicians over the proposed policies, and in turn increase the desire for politicians to present themselves as capable, regardless of their perceived public image. The crisis within politics appears to affect the electorate decisions adversely; hence the management of these issues remains fundamental to successful campaigning. Accusations of deceptive dealings between opposing candidates continue to present surmountable crisis within campaign teams. The response offered to the public could be termed as a damage control measure for the candidates. While some candidates might choose to answer such image tainting crisis through the media, others speak directly to the electorate as a way of convincing them. Political analysis cannot define the better method of crisis control; however the candidates choose modalities which they deem fit for their campaign teams. Proper handling of political crisis stands between success and failure for any prospective political candidate in modern politics. The challenges presented by political crisis could adversely affect t he probability of candidates getting elected into prospective seats. In handling the political crisis that questioned his integrity, Hansen delivered speeches to the electorate. Concerning the prevalent issue of age, President Reagan failed to deliver any speech; however, he rhetorically joked about the issue and utterly ended the recurrent speculations regarding his age (Hahn, 1987). The methods utilized in handling political crisis depend heavily
Friday, October 4, 2019
In Cold Blood by Truman Capote Essay Example for Free
In Cold Blood by Truman Capote Essay In Cold Blood: A True Account of Multiple Murder and Its Consequences by Truman Capote details the social arena that molded Dick Hickock and Perry Smith into criminals and killers. à The author wrote of how Hickock was brought up in a loving home with a stable family but suffered from mental illness.à Perry on the other hand, had alcoholic parents in a very unloving atmosphere, uneducated and suffered from depression.à Each was influenced by society differently but the result was the same. à The author details their stories from the beginning of their criminal history up to their execution for the murder of the Clutter family.à The question is, was Perry a ââ¬Å"natural born killerâ⬠. In an article in Psychology Today there is evidence that activity or lack of in the prefrontal cortex of the brain region are associated with acts of murder.à This prefrontal cortex activity is also associated with a wide range of behaviors such as risk taking, rule breaking, aggression and impulsivity that can lead to violence.à This evidence has a great value in maybe creating a way for society to possibly point out problem individuals and possible treatment or prevention of criminal activity such as murder.à The article goes on to say that perhaps this is a way to point to biological differences or the possibility of natural born killers (Raine 10). In some ways Truman Capote could relate to Perry because both had terrible experiences growing up. The author was intrigued as to why Perry would go on to kill and he didnââ¬â¢t. Capote wrote that possible social consequences made the difference possibly grooming Perry to be a killer and some professionals agree sociologist are not satisfied with the explanations that are rooted in biology and personality.à They point to the perspective of symbolic interaction that each of us interprets life through symbols that we learn (Henslin 133).à Sociologist Edwin Sutherland stressed that people learn deviance.à He uses the term differential association to indicate that we learn to deviate or to conform to societyââ¬â¢s norms mostly by the people we associate with.à But if this is correct then why does some with the same interaction kill and others do not? à In my opinion there are people who are born natural killers.à It is something that is innate within some individuals and is nurtured by society to its final display.à In my belief some individuals will be born a killer and some will not.à Society takes this innate trait and shapes them even more, or even less, towards the direction of their innate features.à The degree of their actions is my proof.à Take hunting some individuals can hunt and some cannot.à This is an example of the innate trait for killing expressed in killing for food rather than killing another human. Degree is how society grooms each killer, the hunter and the murderer, to their final ââ¬Å"endsâ⬠.à Because traits are passed from parent to child that is why some societies are prone to have more killers than others and what degree the acts are committed is influenced by each of the societies they live in.à à The degree of the trait is what society uses for determining how wrong the act is and how that individual will be punished.à Evil is solely influenced and decided by the society one lives in.à Killing is inevitable for some individuals; it is to what degree that makes the difference. Reference: Capote, Truman.à In Cold Blood: A True Account of a Multiple Murder and Its à Consequences.à New York: Signet Books, 1965. Henslin, James M.à Essentials of Sociology: A Down to Earth Approach.à Boston: à à à à à à à à Allyn and Bacon, 2000. Raine, A. à Natural born Killers? à Psychology Today 28(1), p.10, 1995 Jan/Feb.
Thursday, October 3, 2019
Corrosion Inhibition of Metal Using Lawsonia Inermis Extract
Corrosion Inhibition of Metal Using Lawsonia Inermis Extract Introduction Metal and alloy are widely used in various fields of industries. Itââ¬â¢s commonly used in big industries such as manufacturing, processing and others. But metal and alloy used tend to face the corroded state due to the exposure to different chemical and substances that can lead to the corrosion. This phenomenon has become important especially in acidic media because of the increased industrial applications of acid solutions. For examples in industrial refining crude oil, acid pickling, industrial cleaning, acid descaling, oil-well acid in oil recovery and the petrochemical processes. Corrosion happens when the equipment surface was attacked by a strong acid. So in order to prevent the corrosion happen, inhibitors have been used to reduce the rate of metal corrosion. Corrosion inhibitor is a chemical that can slow down the acid attacked which can lead to the corrosion on the drill pipe, tubing or any other metal that contacted with acid during treatment. This chemical when added even in small concentration on corrosive media, it will prevent the reaction between metal and media. Many studies have been carried out to find the suitable compound that can be used as inhibitors. These studies reported that, both synthetic compound and plant extract can be used as corrosion inhibitors. But, usage synthetic compound as inhibitor has been limited. Most of them are highly toxic to both human and environmental. Therefore, non-toxic and natural inhibitors such as plant extract have been used because of their environmentally acceptable, readily available and renewable source. One of the plant extract that have been used as inhibitor is Lawsonia inermis (henna leaves) extract. Henna is an herb which has dyeing properties used in Asia and North Africa. Inhibitive action of henna extract as a cheap, eco-friendly and naturally occurring inhibition on some metal such as aluminium, iron, zinc and nickel in acidic, neutral and alkaline solution has been investigated. Literature Review In order to avoid from use synthetic compound, there are other alternative compound which can be used as an inhibitor. Previous research has been carried out and proved that plant extract can be use in corrosion inhibition. Plant extract consists of chemical compositions lead to prevent metal from corroded. But Buchweishaija (2008) state that among of the plant extract, Lawsonia inermis (henna leaves) was the good one due to the high inhibition efficiency of henna leaves extract. Furthermore, the large amount of henna leaves exist which makes it easy to find it in the Asia and North Africa. Also the most important thing is the unique chemical composition present in Lawsonia inermis by functioning as an inhibitor. à Chemical Composition of Henna Leaves Research was carried out to determine the chemical composition contain in henna leaves that can act as corrosion inhibitor. It has been discovered that henna leaves contain soluble matter, Lawsone (2- Hydroxyl-1,4-naphthoquinone, C10H6O3), gallic acid (3,4,5-trihydroxybenzoic acid, C7H6O5) and dextrose (à ±-D-Glucose, C6H12O6) (Ostovari et al., 2009). Henna leaves also contain other chemical such as resin, coumarins, sterols and tannin (Ostovari et al., 2009). The main components of henna extract are hydroxy aromatic compound like tannin and Lawsone. Tannin or also known as tannic acid present with a core glucose and methyl gallate groups (El-Etre et al., 2005). Tannin which acts as an inhibitor attributes the formation of a passivating layer of tannates on the metal surface (Boot Mercer, 1964). Besides, Lawsone also a main part of henna extract that had been mentioned earlier. The structure of Lawsone is shown in Figure 2.1 below. Figure 2.1: Lawsone structure (C10H6O3) (Hamdy Nour, 2012) The Figure 2.1 above shows that, Lawsone structure consists of benzene, p-benzoquinone and phenolic group (Abdolahi Shadizadeh, 2012). By looking at the structure in Lawsone, we can know that henna extract is an organic compound and the IUPAC name for the Lawsone structure is 2-hydroxy-1, 4-naphthoquinone (Rajedran et al., 2009). Lawsone molecule is a ligand that can chelate with various metal cations and then forming a complex compound. So it can perform corrosion inhibition on metal through absorption method (Ostovari et al., 2009). Mechanism of inhibition The mechanism of inhibition involves blocking metal surface by inhibiting through adsorption. Adsorption process is affected by nature of metal and chemical structure of the inhibitor (Ostovari et al., 2009). The obtain results from previous studies indicate that Lawsonia inermis extract achieve good inhibition for the corrosion of any metal such as C-steel, nickel, and zinc in various mediums of solution (El-Etre et al.,2005). To perform the inhibitory action, there are some components in henna extract which will act as inhibitors. As had been stated earlier, the main components of Lawsonia inermis extract are hydroxy aromatic compound which consists tannin and Lawsone (El-Etre et al., 2005). Both tannin and Lawsone have its own function and mechanism to perform the inhibition action between the metal and henna extract successfully. Tannin The first component is tannin. The inhibitive action of tannin was ascribed to the establishment of a passivating layer of tannates on the metal surface (Rajagopalan et al., 1969; Booth Mercer, 1964). The formation of complex compounds with different metal cations can be form by tannin component especially in the basic media. El-Etre et al. (2005) reported that the formation of tannin complexes may be working well for the inhibition in the alkaline media rather than acidic solution it because tannins are limited inhibition in acidic media. Thus, tannin component in Lawsonia inermis extract is suitable to use in the manufacture of anti-rusting paints and coating. Lawsone The other main element in the Lawsonia inermis extract is Lawsone which has higher concentration than other elements. Lawsone molecule is a ligand that can chelate with metal cations which will form complex compounds. Ligands typically consist in organic compound. Insoluble complex was formed when metal cations combine with Lawsone molecule and it was absorbed on the metal surface. This is how Lawsone compound give inhibition action to the metal. There is such method that can prove the formation of metal complex which the method is conductometric titration. à à à à à à à à à Mechanism of Conductometric Titration Method Often, conductometric titration was conducted to obtain substantial support for the formation of metal complex (Amin, 2002). Several procedures were conducted to confirm the formation of metal complexes. Conductance measurement was carried out with a Jenway 4510 conductivity meter. Lawsonia inermis extract was titrated in separated experiments with some metal in solutions that have different pH value. As the result of the titration, non-complexes of metal ion was reacted with reagent first which leads it to a reduction in the conductivity of the solution. However, the higher amount of ligand (henna extract) does not change the value of conductivity (Ostovari et al., 2009). These results signify that the formation of metal-complex through the chelation of Lawsone molecules and the metal cations with stoichiometric ratio of 1:1 and 2:1 as shown in Figure 2.2. Figure 2.2: Forms of Metal-Lawsonia complexes (El-Etre et al., 2005) So, it can be conclude that the inhibition action of Lawsone was happen and prove that henna leaves extract can act as inhibitor (Abdolahi Shadizadeh, 2012). à à à à à à Mechanism of Lawsone Rearrangement In the acidic solution or known as acidic media, aromatic compound whose structure include a cyclic delocalized Ãâ¬-electron system are susceptible to electron delocalization, especially a ring containing only carbon such as benzene (Lide, 2006). Delocalization of Ãâ¬-electron is to stabilize the molecule. As the bond angles of carbon in benzene are trigonal (sp2), then the ring become flat. So these angles just fit the 120o angles of a regular hexagon and this flatness allow the overlap of the p-orbitals in both directions that lead the delocalization and stabilization (Marrison Boyd, 1983). So thatââ¬â¢s why it needs delocalization to stabilize the structure. In the other situation of Lawsone molecule in acidic media, delocalization of the lone pair of electrons on hydroxyl group takes place resulting in the rearrangement as shown in Figure 2.3. Figure 2.3: Process of electron delocalization on the Lawsone molecule (Ostovari et al., 2009) The migration of the hydrogen atom with a pair of electrons from an adjacent carbon to the carbon bearing caused the rearrangement occur. Carbon that loses the migrating group obtained the positive charge. This is the most common kind of the rearrangement which known as 1,2- rearrangement. Then, with the existence of metal cations, it will enhance the complex formation of reaction (Ostovari et al., 2009). Then the complex formation reaction of rearrangement was enhanced by adding henna extract in solution. So, the metal complexes are stabilized. The formation of these stabilized complexes between Lawsone molecule and metal cations give the high inhibition efficiencies in acidic media. Besides, Mikhael et al (2004) reported that henna constituent has antioxidant characteristic particularly by the naphthoquinones. It also state that, gallic acid also can be used as an oxygen scavenger in boiler system (Soderquist, 1990). Therefore, the oxygen scavenger characteristic of henna extract was attributed to another mechanism for inhibition. However in the acidic media, the main cathodic reaction at the surface is a hydrogen evaluation (Ait Chikh et al., 2005). Hence, the oxygen scavenging characteristic of henna is not the main responsible mechanism for the observed inhibition of henna extract. In addition, it is confirmed that the inhibition mechanism is the chemisorption of inhibitor molecule on the metal surface and it had been verified through thermodynamic parameter and conductometric titration. So as a conclusion, the main inhibitor mechanism chemisorption is through the chemisorption of inhibitor molecules on metal surface. While, the inhibitive action slightly enh anced through oxygen scavenging. (Ostovori et al, 2009). Comparison Henna Extract with Other Inhibition There is another organic compound that can be used as inhibitor besides henna extract. Previous studies has been conducted to test the inhibition efficiency of henna and five other organic compound inhibitor used in acidizing treatment. Table 2.1 show the result of inhibition efficiency of these six inhibitors. Table 2.1: Inhibition efficiency of MEA, DEA, TEA, and henna API steel (Abdollahi Shadizade, 2012) Refer to the Table 2.1 above; the inhibition efficiency was compared between Monoethanolamine (MEA), Diethanolamines (DEA), Triethanolamines (TEA), Dibenzylidene acetone (DBA), Di-N-dimethylaminobenzylidene acetone (DDABA) and henna. The inhibition efficiency of MEA, DEA, TEA and henna at temperature 28oC are 82%, 80%, 78% and 85.98% respectively. Based on the result, it shows that henna has the higher inhibition efficiency than MEA, DEA and TEA. Morever as shown in Table 2.1, the inhibition efficiency of henna extract at 28oC is higher than inhibition efficiency of DDABA with 73.8% IE. Furthermore result also shown that inhibition concentration of henna extract is less than all inhibitors with the same temperature eventhough it have higher inhibition efficiency. So we can conclude that, with the small concentration of henna leaves extract, it can act as inhibitor with higher inhibition efficiency rather than other listed inhibitors which have larger concentration but average of inhibition efficiency is low than henna extract. In addition, research still focused to the amount of henna leaves extract in order to apply it in industries as now the amount of henna is quiet small to apply it. So, the experimental must be conducted by using larger amount of henna leaves and various metals Problem Statement Nowadays, metal and alloy are widely used in various industries especially in manufacturing and processing. But the problem is the metals used tend to faced corrosive when the surface of equipment attacked by strong acid media or any other media. But mostly, acidic media are the main causes for corrosive to happen due to the increasing of industrial application an acid solution. So in order to prevent from corrosion of metal, inhibitor has been used. However the use of synthetic compound as inhibitor is extremely dangerous either to the body and the environment due to the toxicity. Thus, studies are conducted to find the non-toxic and natural inhibitors. The study shows that plant extract can be used as corrosion inhibitor. One of them is henna leaves extract. Besides being environmentally acceptable and readily available, henna leaves extract also cheap as itââ¬â¢s easy to find in Asia and North Africa and renewable sources. Objectives There are few objectives that has been studies in order to solve corrosion phenomenon and carried out the research on corrosion inhibitor of metal by using Lawsonia inermis extract. The objectives are: Study of corrosion inhibition of metal by using henna leaves extract. Analysis mechanism of inhibition towards metal. Investigate the differences between henna leaves extract with other inhibitor.
Wednesday, October 2, 2019
The Internet and Intellectual Property Laws Essay -- Internet Online
The Internet and Intellectual Property Laws With the emergence and growth of the internet, intellectual property laws are much harder to enforce and many people are saying that they are outdated and obsolete. Intellectual property allows you to own your ideas, thoughts, and creativity as you would own a piece of tangible property. The human mind is a creative tool that comes up with ideas, designs, schemes, and inspirations of all kinds. Intellectual property views these ideas as being property. The ideas must also have commercial value and be a tradable commodity otherwise there would be no point to protect it. Intellectual property is basically the ownership of ideas. If one were to write a novel, for which the idea was conceived in there mind, they could copyright that novel so that no other person could steal that idea and write another novel on it. Copyright is a type of intellectual property. The main types of intellectual property are patents, trademarks, trade secrets, and copyrights. There are many issues arising abou t copyright and intellectual property due to the technological advances in the past ten years or so. A patent is a way to protect your invention. A patent makes sure that no other person can make, sell, offer for sale, or import your invention for a certain amount of time, in Canada it is 20 years. Since you have put a lot of time and effort into creating and producing your product, a patent prohibits others from copying your creation so all of your time doesnââ¬â¢t go to waste. This allows you to properly market your creation and prevent competition in the early stages of your commercialization effort. Patentable material includes any ââ¬Å"new and useful art, process, machine, manufacture or composition of ... .../31intell.htm> Intellectual Property. No date. Government of UK. 26 Jan. 2003 > Intellectual Property in Health Research. No Date. HRC 2 Feb. 2003 Levy, Steven. ââ¬Å"Issues of Intellectual Property & Copyright for Educatorsâ⬠. Newsweek. 27 Feb. 1995. 26 Jan. 2003 McCullagh, Dean. ââ¬Å"Judge: Kazaa can be Sued in USâ⬠. 10 Jan. 2003. 1 Feb. 2003 Overbye, Morten. ââ¬Å"Teen Cleared in Landmark DVD Case.â⬠7 Jan. 2002. CNN. 26 Jan. 2003 FootNotes 1Baumer and Poindexter (pg42) 2http://www.bountyquest.com/patent/whatisip.htm 3http://news.com.com/2100-1023-980274.html?tag=lh 4http://www.cnn.com/2003/TECH/01/07/dvd.johansen/
Problems with Voting :: essays research papers
Why Voting is never Completely Accurate!! Statement of the Problem à à à à à There are several problems when it comes to elections. One of the problems is whether the candidates played fairly throughout the election. Another problem is whether the votes that are being cast are being counted correctly or even being counted at all. The main reason this topic has become such an important issue is because of the last two elections. The first election had a problem in the state of Florida, and the 2004 elections had problems in the state of Ohio. Evidence Used in Reaching my Conclusion à à à à à One of the things I would worry about in voting is how and who is counting my votes. For instance, a type of voting I would not be satisfied with is the paper ballot way of voting. The modern system of election using paper ballots was first used in 1858 in Australia. The great Australian innovation was to print standardized ballots at government expense, distribute them to the voters at the polling places, and require that the voters vote and return the ballots immediately. Today, the security against election fraud this provides seems obvious, but in the 19th century, it was not obvious to most observers, and it was not until 1888 that this ballot was used in the United States. à à à à à Another type of voting that is a problem to me is the lever voting machine. Lever voting machines offer excellent voter privacy, and the feel of a lever voting machine is immensely reassuring to voters! Unfortunately, they are immense machines, expensive to move and store, difficult to test, complex to maintain, and far from secure against vote fraud. Furthermore, a lever voting machine maintains no audit trail. With paper ballots, an it is possible to recount the votes if there is an allegation of fraud. With lever voting machines, there is nothing to recount! This could be a problem also because if someone votes incorrectly and pushes the lever down at the wrong time he or she can not go back and fix that vote. à à à à à I know that this doesnââ¬â¢t look like a single vote would sway an election that much but you figure that 1,000 people across the nation vote incorrectly for the same person. That could sway an election, probably not a presidential election but it might sway an election for senate or the house. I believe that a unified way of voting should be made, whether it is any type of voting. Problems with Voting :: essays research papers Why Voting is never Completely Accurate!! Statement of the Problem à à à à à There are several problems when it comes to elections. One of the problems is whether the candidates played fairly throughout the election. Another problem is whether the votes that are being cast are being counted correctly or even being counted at all. The main reason this topic has become such an important issue is because of the last two elections. The first election had a problem in the state of Florida, and the 2004 elections had problems in the state of Ohio. Evidence Used in Reaching my Conclusion à à à à à One of the things I would worry about in voting is how and who is counting my votes. For instance, a type of voting I would not be satisfied with is the paper ballot way of voting. The modern system of election using paper ballots was first used in 1858 in Australia. The great Australian innovation was to print standardized ballots at government expense, distribute them to the voters at the polling places, and require that the voters vote and return the ballots immediately. Today, the security against election fraud this provides seems obvious, but in the 19th century, it was not obvious to most observers, and it was not until 1888 that this ballot was used in the United States. à à à à à Another type of voting that is a problem to me is the lever voting machine. Lever voting machines offer excellent voter privacy, and the feel of a lever voting machine is immensely reassuring to voters! Unfortunately, they are immense machines, expensive to move and store, difficult to test, complex to maintain, and far from secure against vote fraud. Furthermore, a lever voting machine maintains no audit trail. With paper ballots, an it is possible to recount the votes if there is an allegation of fraud. With lever voting machines, there is nothing to recount! This could be a problem also because if someone votes incorrectly and pushes the lever down at the wrong time he or she can not go back and fix that vote. à à à à à I know that this doesnââ¬â¢t look like a single vote would sway an election that much but you figure that 1,000 people across the nation vote incorrectly for the same person. That could sway an election, probably not a presidential election but it might sway an election for senate or the house. I believe that a unified way of voting should be made, whether it is any type of voting.
Tuesday, October 1, 2019
Kinds of System
Is a system that captures, enters stores, retrieves and processes the relevant details of business events, and generates the information/document necessary for running he organization and interfacing with external entities, such as customers. Transaction ââ¬â Is the process of dlvldlng a body of data Into blocks and spreading the data blocks across several partitions on several hard disks. Features of Transaction Processing Systems 1. Rapid response ââ¬â fast performance with rapid results 2.Reliability- well designed backup and recovery with a low failure rate 3. Inflexibility ââ¬â treat every transaction equally. It may be used many times each day which means it has to be precise and inflexible 4. Controlled processing ââ¬â maintain speclflc requirements for the roles and responsibilities of different employees. Types of -rps Batch processing Is where the Information Is collected as a batch and then processed later on. An example of batch processing is paying by che que.Batch processing is useful for enterprises that need to process large amounts of data using limited resources Batch Processing system Real Time Processing is where all details of the transaction are recorded and changed at the time as It occurs. Examples of real time processing are ATM's. The importance of data In transaction processing: Data security Is Important as data Is often confidential or has a commercial value, herefore, it needs to be protected from unauthorized access.Data accuracy means that the data is correct and that the data is up to date (current) Data integrity describes the reliability of data. This will include statements of data currency, correct entry of data and accuracy of the data. TPS serve two purposes. 1 . To support day-to-day, routine operations by being made accessible to those parts of the organization (as well as to external entities) where they are needed. 2. To feed 1 OFA effectiveness and efficiency of the operations. The computer system media ting between the humans and physical reality in an nventory application.Updates brought about by a transaction are of three types: Adding a new record, such as when a new customer signs up Changing an existing record, such as changes in credit available for a customer when that customer makes new purchases or returns already purchased products Deleting a record, such as when a product is discontinued TPSs are characterized by Large amounts of input/output Large number of users Huge storage requirements Low computational complexity Fast input/output as well as processing capabilities A high degree of concern for potential security related problems A high degree of oncern for reliability and fault tolerance.Five Stages of Transaction Processing Data Entry Processing Database Maintenance Document And Report Generation Inquiry Processing Management Information Systems Provide information in the form of reports and displays to managers and many business professionals to support business decision making. A management information system is an information system that uses the data collected by the managers can use it to make routine business decisions in response to problems. Some of the reports that this information systems creates are summary, exception and ad hoc reports.All this is done to increase the efficiency of managerial activity. Most management information systems specialize in particular commercial and industrial sectors, aspects of the enterprise, or management substructure. Management information systems (MIS), produce fixed, regularly scheduled reports based on data extracted and summarized from the firm's underlying transaction processing systems[5] to middle and operational level managers to identify and inform structured and semi-structured decision problems.Decision Support Systems (DSS) are computer program applications used by middle management to ompile information from a wide range of sources to support problem solving and decision making. Exec utive Information Systems (EIS) is a reporting tool that provides quick access to summarized reports coming from all company levels and departments such as accounting, human resources and operations. Marketing Information Systems (MIS) are Management Information Systems designed specifically for managing the marketing aspects of the business.Office Automation Systems (OAS) support communication and productivity in the enterprise by automating work flow and eliminating bottlenecks. OAS may be implemented at any nd all levels of management. School Information Management Systems (SIMS) covers school administration, and often including teaching and learning materials. Enterprise Resource Planning (ERP) facilitates the flow of information between all business functions inside the boundaries of the organization and manages the connections to outside stakeholders.Advantages The following are some of the benefits that can be attained for different types of management information systems. Co mpanies are able to highlight their strengths and weaknesses due to the presence of revenue reports, employees' performance record etc. The identification of these aspects can help the company improve their business processes and operations. Giving an overall picture of the company and acting as a communication and planning tool. The availability of the customer data and feedback can help the company to align their business processes according to the needs of the customers.The effective management of customer data can help the company to perform direct marketing and promotion activities. Some disadvantages can exist when using a management information system in a company. Expensive Installing a management information system can be expensive for a company. Information technologyâ⬠while cheaper today than previous yearsâ⬠can represent a significant expense, especially for larger organizations. These systems may also require ongoing support or upgrade fees, which can represen t future fixed cash outflows.Companies must create a budget to pay for these items to ensure the information system stays current with business technology. Attempting to integrate these systems with technology currently in use can also increase expenses. Companies may need to hire maintenance individuals to help keep an electronic information system running smoothly. These individuals often need experience in omputer science functions and other business topics. Not only does this increase labor costs, but it also requires additional training and ongoing education for these individuals.Business technology can change frequently, creating an environment where companies must have trained individuals who can properly maintain computers, websites, servers and other equipment in use by the management information system. Ineffective Management information systems have the potential to become ineffective in a company's operations. As with all computer systems, the management information syst em is only as good as the programmer. Gathering unimportant or non-essential information can delay business decisions because managers must request additional input.Spending too much time reprogramming or correcting issues can also increase the time spent in the decision-making process. Business owners and managers may also need extensive training on new systems, creating a learning curve that will hopefully diminish over time. Unemployment While information, Information Security Selection Software Evaluation Reports, they secure Information Exchange in an Insecure World, Lack of Job security, Dominant culture , there is no privacy, expensive, maintenance and ineffective.
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