Thursday, January 23, 2020

pipe lines :: essays research papers

Herkansingsopdracht ETGRS2 (interactieve lesbrief): Als herkansing wordt van een student gevraagd een lesbrief over een onderwerp of thema uit het vakgebied van Game Technologie / Game Design uit te werken als een zelfstandig te ‘lezen’ lesbrief. Doel is je, op basis van het geen in de lessen is behandeld, je eigen interesse, vaardigheid en richting, verdieping te zoeken in een thema / onderwerp, en dit zodanig te presenteren in een lesbrief dat anderen na lezen van de lesbrief meer over het onderwerp te weten zijn gekomen. Het moet een heldere en inzichtelijke tutorial-achtig verhaal zijn, gericht op een doelgroep van MT-studenten die met Games (en GameMaker) aan de slag gaan (dus nog niet zoveel kennis hebben). NB. Dus niet de lesstof of lesreaders of bestaande tutorials kopià «ren en aanbieden, maar zelf een uitgebreider verhaal maken, waaruit het behandelde item (en de bijbehorende sub-items) duidelijk uitgelegd worden. Zodat ook duidelijk wordt dat je jezelf er in verdiept hebt. In principe is ieder onderwerp mogelijk, als het aansluit op het vakthema GameTechnologie en/of GameDesign. Onderwerpen moeten eerst voorgelegd worden voor goedkeuring. De lesbrief behandelt deze dan door de te presenteren historie, achtergronden, theorie, voorbeelden, à ©Ãƒ ©n of meerdere oefeningen en tot slot een toekomstvisie van jezelf op het onderwerp. Kies een onderwerp welk aansluit op je eigen 'gerichtheid' ; waar ben je goed in – waar heb je feeling mee – waar wil je jezelf verder in verdiepen; dit om tot een lesbrief van een zinvol niveau te kunnen komen. Onderwerpen kunnen zijn (maak keuze of doe een voorstel voor eigen onderwerp): Basic game technologies (kies een van onderstaande items): *Behavior and Motion : reactive behavior rule-based systems in games agents and bots in games Finite State Machines *Motion control Interaction models Motion planning Collision detection †¢ path finding 􀂃 collision detection 􀂃 AI principles MT – programma E&T – vak ETGRS2 jan. 2005 NWH, 4-4-05, pag. 2 / 2 †¢ Essentials of a (good) game 􀂃 Rules 􀂃 Play 􀂃 Meaningful Play 􀂃 the game System 􀂃 Magic Circle 􀂃 Procedural Representation Basis opbouw 'lespresentatie': Een lespresentatie is een helder, overzichtelijk, verdiepend college aan de andere studenten over een bepaald thema of onderwerp binnen het domein van Graphics&Sound. Een makkelijk leesbaar, tutorial achtig document, met beeldmateriaal (screenshots, movies etc.) waarin het onderwerp duidelijk wordt behandeld.

Wednesday, January 15, 2020

Chromatography

Student name: Amal Al-Hamdani Teacher name :Alia Alfi Group name: 2 Year: 2018 Chromatography  is  a physical method  used in lab  for  separation of  a mixture of chemical substances into its individual components, so that the individual components can be thoroughly analyzed.  it has numerous applications in  biological  and  chemical  fields.  it  is widely used in  biochemical  research for the separation and identification of  chemical compounds  of biological origin. Chromatography  consists of two  phase;  a  mobile phase  (a liquid or a gas)  , which  Ã‚  flows through  the  stationary  Ã‚  phase  , and a  stationary  Ã‚  phase  (a solid) .the stationary phase has certain physical and chemical characteristic that allow it to interact in various ways with different compound . A common types of  Ã‚  stationary  Ã‚  phase  Ã‚  are ;ion exchange chromatography, Affinity Chromatography, Gas Chromatography, liquid Chromatography†¦etc.Gas ChromatographyGas Chromatography  (GC)  or,  gas-liquid chromatography (GLC)  is a useful  tool  technique  that, allows us to separate and identify individual components in the mixture.  also, Gas Chromatography  can measure the concentration  of various components in the mixture for samples that have volatile  components  and,  separate mixture  by adherence to a surface. Method: 3590925369570000 A gas chromatograph uses a flow-through narrow tube known as the column, through which different chemical constituents of a sample pass in a gas stream (carrier gas, mobile phase) at different rates depending on their various chemical and physical properties and their interaction with a specific column filling, called the stationary phase. As the chemicals exit the end of the column, they are detected and identified electronically. The function of the stationary phase in the column is to separate different components, causing each one to exit the column at a different time (retention time). Other parameters that can be used to alter the order or time of retention are the carrier gas flow rate, For example, internal standards it is commonly used way in  Gas Chromatography to calculate  the  concentration of an analyte. for any particular detector, the relative response factor for the  analyte compared  to the  internal standards must be determined first. calibrating the linearity of the response factor for the  analyte compared  to the  internal standards requires making a series of the solutions with the same concentration of the standards, and a varying concentration of analyte. Plotting the response of the analyze relative to the standard (peak area of analyte/peak area of standards) versus the concentration of the analyte relative to the standard ([analyte]/ [ standard]) should produce a straight -line graph whose slope in the response factor.C+O2? CO2 +heatThis is a fast reaction and there a lot of physical method to slow down and stop fast reactions for example:Reducing the temperature at which a reaction occurs i.e. cool things down.adding a reagent which will react with the remaining reactantUsing reagents that have a small surface area i.e. the substance is in large lumps.Using a catalyst – the right catalyst can slow down the rate at which a chemical reaction occurs.The rate of reaction for a concentrated strong acid with a concentrated strong base is most affected by what three things the use of a catalyst, a change in temperature, a change in reactant concentration.We are going to use temperature temperature normally speed the reaction and i t also slow it down by lowering the it because the rate and the temperature has a Positive relationship so if temperature is high the reaction speed increase and if the temperature is low the reaction speed decrease and that is according to  van't Hoff's law,  an increase in temperature will cause an increase in the rate of an endothermic reaction. The effect of the temperature can be explained by the fact that increasing temperature will move the particles at higher speeds and the impact of the collisions leading to the interaction is large, which increases the speed of the reactionand also, at higher temperatures, higher percentages of collisions produce a chemical reaction because higher percentages of molecules have greater velocity, and enough energy is available to react. Explanatory examples tell the effect of temperature on the rate of chemical reaction rateIncreased temperature helps to speed the maturity of food.Increasing the pressure in the pressure vessels leads to an increase in temperature inside the so the food is cooked very quickly.Keeping food in the refrigerator help not to spoil it because the temperature of the refrigerator is low, and this leads to a decrease in the speed of geochemical reactions that cause food corruption.The temperature change in the chemical balanced reaction, leading to the interaction in the opposite direction, which cancels the effect of this change Interpretation In the case of heat-reactive reactionsI-Reduce the temperature The interaction is facilitated in the direction that reduces the effect of lowering the temperature (which reduces the effect of this effect), ie, the reaction in the direction that causes the increase in temperature is the random directionII-when raising the temperature. The interaction in the direction that reduces the effect of raising the temperature (which reduces the effect of this effect) is facilitated by the interaction in the direction that causes the temperature reduction and is the reverse direction So, in the reaction I did chose it is a exothermic so when we raising the temperature it will slow down the reaction because it is exothermic and when it dose slow down the molecules in the reaction will be slower in moving and the collisions and if it was endo thermic the opposite will happen. And we cannot calculate the rate law because it is experimentally calculated so we can only write the rate low for the reaction C+O2? CO2 +heat Rate low ReferencesPage 1^ â€Å"Gas Chromatography†. Linde AG. Archived from the original on 3 March 2012. Retrieved 11 March 2012.^ Jump up to: a b c d e f g h i j k l m n o p Harris, Daniel C. (1999).â€Å"24. Gas Chromatography†. Quantitative chemical analysis (Chapter) (Fifth ed.). W. H. Freeman and Company. pp.  675–712. ISBN  0-7167-2881-8.Page 2 Chromatography Search the web. Some interesting sites are listed below. Note that some of these sites go into much more depth than is reasonable for this course. http://en. wikipedia. org/wiki/Chromatography http://ull. chemistry. uakron. edu/analytical/Chromatography/ http://orgchem. colorado. edu/hndbksupport/TLC/TLC. html this is for TLC – similar to paper http://users. rcn. com/jkimball. ma. ultranet/BiologyPages/C/Chromatography_paper. html http://jchemed. chem. wisc. edu/JCESoft/Programs/CPL/Sample/modules/paprchrom/paprchromdesc. htm http://jchemed. chem. wisc. edu/JCESoft/Programs/CPL/Sample/modules/paprchrom/paprchromdesc. tm This site shows the colors of many of the food colorings and lakes http://www. dynemic. com/food%20colour. htm This site has colors and correct names for many of the colors. You can get the structures from the names with CRC or a good organic chemist. http://vm. cfsan. fda. gov/~lrd/colorfac. html this is a general site with information on food colorings â€⠀œ discusses difference between dyes and lakes Procedure – Extract the color from the candies 1. Label each of the beakers with one color of the candy. 2. Place one sample in each cup. 3. Put as few drops of water as possible (around 5) in each cup. 4. Stir carefully to extract as much color as possible without disturbing the white coating or the centre of the candy. 5. Remove the sample as soon as the white coating appears. 6. Add each sample in turn to its appropriate cup until as much color has been extracted as possible. Note: Repeat the steps for each kind of candy. Be sure to include the color and kind of candy on your label. Prepare chromatogram 1. Cut a piece of chromatography paper in half to form a rectangle with dimensions 10 cm x 20 cm. 2. Draw a line approximately 1 cm from the long edge of the paper with a pencil. 3. Mark dots along the pencil line approximately 1-1. cm apart and label as food dye colors yellow, green, blue, and red. Mark two additional dots for your choice of two different colored candies. 4. Using a toothpick, carefully wet the spots you have marked with the appropriate food color or the color extracted from your candy. As the spots dry, rewet them with more sample until you have a dark spot. (If yo u do not load enough sample onto the chromatographic paper it will be difficult to detect the spots. ) 5. Curl the paper into a cylinder with the short edges just touching and staple together. 6. Place the chromatogram into a beaker with approximately ? m of solvent on the bottom. Be sure that the entire lower edge of the chromatogram is touching the solvent, but the solvent does not reach above the pencil line. Allow the chromatogram to sit in the beaker until the solvent front is 1 cm from the top of the paper and remove. Draw a line at the solvent front with your pencil. 7. Repeat this process for any additional solvents you wish to use. Analysis of chromatogram. 1. Circle each spot that you see on the chromatogram. 2. measure the distance between the starting point and the center of the spot for each component on your chromatogram 3. easure the distance between the starting point and the solvent front on your chromatogram 4. Calculate the Rf value for each component. 5. Draw con clusions regarding the identity of each component in the chromatogram. 6. Propose reasons why different components had higher or lower Rf values based on the structures below and your knowledge of intermolecular forces. Colors ProductRedYellowGreenBlue Crown Colony KitBlue #1 Red #3 Red #40Yellow #5 Yellow #6Blue #1 Yellow #5Blue #1 Crown Colony SinglesRed #40Yellow #5 Red #40Blue #1— DurkeeBlue #1 Red #3 Red #40Yellow #5Blue #1 Yellow #5Blue #1 McCormickRed #3 Red #40Yellow #5 Yellow #40Blue#1 Yellow #5Blue #1 Red #40 FDA Certifiable colors: (name/common name) NameCommon nameComment FD&C Blue No. 1Brilliant Blue FCF FD&C Green No. 3Fast Green FCF FD&C Red No. 3Erythrosine FD&C Red No. 40Allura Red AC . It usually comes as a sodium salt, but can be also in the form of calcium and potassium salt. It is soluble in water. FD&C Yellow No. 5Tartrazine FD&C Yellow No. 6Sunset Yellow FCF Questions 1. Does the type of solvent used for paper chromatography affect the Rf values of the food dyes? 2. Which dye molecules were in your candy coating? 3. If the solvent front moved 112 mm and a component of a mixture moved 48 mm

Tuesday, January 7, 2020

Supply Chain Management Of Dell - 1202 Words

Introduction Supply chain management is essential process for every business organization to make a good relationship among suppliers who provide resources to business organizations according to their requirements. Here in this report we will discuss about production strategy and contracts for supply chain for Dell. Dell is a well-known company and serving its customers with its services and products worldwide. It will be better to discuss about supply chain management of this company. Besides this, we will also discuss about seasonal and generic sale of products of supply chain. By interviewing Retail Company it will become easy to know about inventory policies that are adopted by store for order quantity, safety stock and reorder level. Discussion If we talk about production strategy of DELL, then this company has devoted its big time in developing a business strategy and supply chain strategy. These both strategies are worked in this company together. Dell focuses on its supply chain strategy and according to this strategy, it emphasizes on driving costs out of the supply chain. Being a low cost provider, Dell also emphasize on business strategy, for which customer satisfaction is very much necessary. The supply chain of Dell consists of some essential features such as manufacturer, transport, supplier retailers and wholesalers. Dell realizes this thing that today to get success in business supply chain implementation is necessary. The production strategy for supplyShow MoreRelatedDell Supply Chain Management5373 Words   |  22 PagesTable of Contents 1. Introduction 1 2. Literature Review 1 3. Supply Chain Management 6 4. Components of Supply Chain Management 7 5. Business Process Integration 8 6. Dell Computers 12 7. Dell’s value chain 13 8. Dell’s Supply Chain Management 14 9. Significance and Advantages of supply chain management 17 10. Cost effective and consumer friendly SCM of Dell 20 11. Conclusion and recommendation 21 12. References†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦...†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..†¦..22 1. Introduction CompaniesRead MoreDell Supply Chain Management3057 Words   |  13 PagesPublication Date: 12 November 2010 ID Number: G00208603 Case Study for Supply Chain Leaders: Dell s Transformative Journey Through Supply Chain Segmentation Matthew Davis Faced with ever-changing customer needs, product commoditization, unique global requirements and new, low-cost competitors, Dell embarked on a three-year journey to segment its supply chain response capabilities. The company designed its supply chains based on a mix of cost optimization, delivery speed and product choicesRead MoreDell s Supply Chain Management3272 Words   |  14 PagesSUMMARY Dell is the company that is well known for its unique and innovative supply chain and was responsible for setting trend for the way the PC could be sold at the cheaper rate. It was ranked 2nd on the list of the biggest computer distributors. The benchmark of their successful company was because of their unique Supply Chain Management. Dell marked its uniqueness in the supply chain industry by the launch of the ‘Built – to – order’ and ‘Direct Sale Strategies’. Supply chain management playsRead More Dell Computer Supply Chain Management Essay7134 Words   |  29 PagesDell Computer Supply Chain Management Table of Contents Executive Summarynbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp; 3 Focus of the Proposalnbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;Read MoreA Case Study of Dell Supply Chain Management4601 Words   |  19 Pagesstudy of Dell supply chain management Liu Xingrui 920514-7482 tml10xlu@student.hig.se Xiao Ziye 920801-6619 tml10zxo@student.hig.se Peng Yunyi 930204-9128 tml10ypg@student.hig.se Liu Siqi 921026-9628 tml10slu@student.hig.se Date Summary Dell’s supply chain is typical paragon among the computer manufacturing industry. The advantage of supply chain lead to a rather strong marketing performance for dell than it ever had been. This paper takes an overview of Dell’s supply chain and strategiesRead MoreDell: Supply Chain Management and Electronic Commerce Essay1415 Words   |  6 Pages Introduction: Dell, one of the largest technological corporations in the world, sells personal computers, software, computer peripherals and other digital products among the world. According to the Fortune 500 list, Dell is currently listed as number 51. Dell is well known for its customer-oriented services such as supply chain management and electronic commerce. More specifically, the supply chain management (SCM) used by Dell allows customers to build their own PC online and successfully satisfiesRead MoreIntroduction to Supply Chain Management System: Dell Computer Corporation1451 Words   |  6 PagesIntroduction to Supply Chain Management (SCM) System Supply chain management (SCM) is the combination of activities which help a company to improve the methods to make a product or service and deliver it to customers. (Larson, 2004) SCM encompasses the planning and management of all activities involved in sourcing, procurement, conversion, and logistics management activities. More importantly, it includes coordination and collaboration with other people who are associated with the business likeRead MoreEssay on Senior Project Manager1081 Words   |  5 Pages| U02A1 Dell Supply Chain | James DeHaven | BUS3022 Fundamentals of Supply ChainCapella University | Why has Dell’s Direct Supply Chain been so Successful? The direct supply chain model that Dell has been using for many years to sell customized PC’s to customers via the internet has been very successful. Dell designed and structured the supply chain to provide customized computers in a quick manner and with a reasonable price. Customers can visit the Dell website and configure the PCRead MoreSuppliers And Supply Chain Management1580 Words   |  7 PagesASSIGNMENT #1:Suppliers and Supply chain management Submitted by Vishnu Gandhamaneni Student Id: 30129773 LECTURER TUTOR: Mr. Gopi Krishna Akella â€Æ' Table of content 1.Abstract 3 2.Introduction 3 3.Basic principles of SCM 4 4.Advantages of SCM 4 5.Problems on SCM 5 6.Solutions of SCM 5 7.Case study description 6 8.Conclusion 8 9.References 9â€Æ' A Complete Study of Suppliers and Supply Chain Management in E-Commerce Vishnu GandhamaneniRead MoreHow Does Dell Manage Inventory Within Its Supply Chain? Essay1445 Words   |  6 PagesHow does Dell manage inventory within its supply chain? Supply chain consist of the series of activities that controls the flow of materials and information through operations to the end-user (Greasley 2013). There is also a people element to the supply chain – customers and employees (Elliott 2016). As materials are an integral part of the supply chain, inventory management is part of the supply chain management. Inventory management can be defined as the process of efficiently overseeing the constant