Free Essays on Toyota Matrix Vs. Malibu Maxx

Toyota Matrix vs. Chevrolet Malibu Maxx Every time you turn on the television I guarantee that you will see a commercial selling a car. They tell you about all the great features and the benefits of having this vehicle so they can lure you into their selling scheme. Some how the commercials always seems to leave out the price or they try to make it seem like the price is great by giving you cash back and low finance rates. Everyone always wants the best deal for their money, so today I have two ads out of a magazine on cars that I will be informing you on how these two cars are same, different, how the ads are presented, and by buying the cheaper one you will get the best deal for your money. The new 2004 Toyota Matrix and the 2004 Chevrolet Malibu Maxx are the two vehicles I have chosen to compare. Both of these vehicles are four door sedans and are for mainly families. These two vehicles are in the same category and are considered competitors for their group. Both of these vehicles are spacious and luxury, therefore, having the same concept. If you were to research these vehicles they have many of the same features that come stock with the car. Power windows, seats, locks etc. all come equipped with both of the cars. As you can see these two cars are mainly the same when it comes to features and accessories. Seeing that these two cars are the alike in many ways, they have a couple small differences between them. The starting price for the lowest package of the Malibu Maxx is 21,465 and for the Matrix is 16,340. Since these are family cars that we are comparing and contrasting speed and motor size does not play a major role in buying these cars, unless you like to speed with your family in the car. Luxury and space is nice to have when you buy a car for your family. The Malibu has the bigger engine than the Matrix, which makes the Malibu faster. Looking at these two vehicles you can see that the Malibu is longer than th... Free Essays on Toyota Matrix Vs. Malibu Maxx Free Essays on Toyota Matrix Vs. Malibu Maxx Toyota Matrix vs. Chevrolet Malibu Maxx Every time you turn on the television I guarantee that you will see a commercial selling a car. They tell you about all the great features and the benefits of having this vehicle so they can lure you into their selling scheme. Some how the commercials always seems to leave out the price or they try to make it seem like the price is great by giving you cash back and low finance rates. Everyone always wants the best deal for their money, so today I have two ads out of a magazine on cars that I will be informing you on how these two cars are same, different, how the ads are presented, and by buying the cheaper one you will get the best deal for your money. The new 2004 Toyota Matrix and the 2004 Chevrolet Malibu Maxx are the two vehicles I have chosen to compare. Both of these vehicles are four door sedans and are for mainly families. These two vehicles are in the same category and are considered competitors for their group. Both of these vehicles are spacious and luxury, therefore, having the same concept. If you were to research these vehicles they have many of the same features that come stock with the car. Power windows, seats, locks etc. all come equipped with both of the cars. As you can see these two cars are mainly the same when it comes to features and accessories. Seeing that these two cars are the alike in many ways, they have a couple small differences between them. The starting price for the lowest package of the Malibu Maxx is 21,465 and for the Matrix is 16,340. Since these are family cars that we are comparing and contrasting speed and motor size does not play a major role in buying these cars, unless you like to speed with your family in the car. Luxury and space is nice to have when you buy a car for your family. The Malibu has the bigger engine than the Matrix, which makes the Malibu faster. Looking at these two vehicles you can see that the Malibu is longer than th...

Security Plan For Longfellows Wine Group Information Technology Essay Essay Example

Security Plan For Longfellows Wine Group Information Technology Essay Essay Example Security Plan For Longfellows Wine Group Information Technology Essay Essay Security Plan For Longfellows Wine Group Information Technology Essay Essay With the duty for the private informations of 1000s of clients, its no admiration that Longfellows group counts information security as one of its top precedences. The end of Longfellows security plan is to implement cost effectual countermeasures that mitigate the exposures that will most likely lead to loss. This paper discusses the menaces which put Longfellows most at hazard of loss and the controls which they employ to countermeasure those menaces. A elaborate security policy is discussed, sketching single duties, security processs and catastrophe recovery programs. This paper besides makes future recommendations as to how Longfellows could break increase the security of their systems into the hereafter. Executive Summary: 2 1. Introduction 4 2. Organisation Description 4 Comprises of Longfellows Insurance Brokers, Longfellows Wine Export Pty Ltd, Winefellows Pty ltd, and Longfellows Shanghai Trading Pty Ltd. Presently they have 5 full clip employees in the Melbourne Office with two authorised representatives for the insurance securities firm one in QLD and one in NSW. The Melbourne office comprises of our chief / manager, Senior Insurance agent, Support Marketing and Administration trough, bookkeeper and Wine Export Logistics and China liaison. 4 There is eight staff in the Shanghai office including the Shanghai manager wholly related to gross revenues and disposal of wine exports into China from Australia. 4 . 4 2.1 Current Networked System 4 2.2 Organisational Chart 5 3 Security Policy 6 3.1 Security Goals 6 3.1.1 Duties of the Principle Director 6 3.1.2 Duties of the Operations Manager 7 3.1.3 Duties of the Marketing Officer 7 3.1.4 Duties of the Financial Controller 8 3.1.5 Duties of the IT Manager 9 3.2 Duties for Goals 9 3.3 Committedness to Security. 10 4. Current Security Status 10 4.1 Accidents and Catastrophes 10 4.1.1 Threats and Controls 10 4.1.2 Data Analysis 11 4.1.3 Cost Effectiveness of Controls 11 4.2 Data Attacks 12 4.2.1 Threats and Controls 12 4.2.2 Data Analysis 12 4.2.3 Cost Effectiveness of Controls 13 5. Decisions 13 6. Recommendations 14 6.1 Internal A ; External menaces 14 6.1.1 Threats and Controls 14 6.1.2 Data Analysis 14 6.1.3 Cost Effectiveness of Controls 15 7. Execution of recommended controls 15 7.1 Timetabling 15 7.2 Responsibility 15 7.3 Schedule for Review of Security and Control Items 16 Mentions 17 18 Appendix B 19 Appendix C 22 1. Introduction With the of all time increasing menace from virus, spyware, hackers and individuality offense the demand for secure calculating informations and equipment has reached new degrees in the modern age. Every administration and computing machine user knows all to well the harm malicious package can make to a computer science system, with that in head, major Information technology companies have develop ways to battle against these menaces and most employ more than one technique. Longfellows is Insurance company which offers securities firm and policies to concern and single clients likewise. Longfellows understands the demand to protect client s personal informations utilizing the best industry patterns and equipment available. Henry wadsworth longfellows do nt officially hold a security policy in relation to its calculating system but do hold one in topographic point for their employees. This papers will assist to sketch that policy and place the duties of all users. This papers chief focal point is to place those menaces probably to do failure or loss to Longfellows calculating systems and to seek to quantify those menaces and set up the cost of the controls to decrease those menaces. 2. Administration Description Comprises of Longfellows Insurance Brokers, Longfellows Wine Export Pty Ltd, Winefellows Pty ltd, and Longfellows Shanghai Trading Pty Ltd. Presently they have 5 full clip employees in the Melbourne Office with two authorised representatives for the insurance securities firm one in QLD and one in NSW. The Melbourne office comprises of our chief / manager, Senior Insurance agent, Support Marketing and Administration trough, bookkeeper and Wine Export Logistics and China affair. There is eight staff in the Shanghai office including the Shanghai manager wholly related to gross revenues and disposal of wine exports into China from Australia. . 2.1 Current Networked System Desktops: They presently have 10 Desktop machines in the Melbourne office with two of these moving as waiters and two of these are run on a splitter for the disposal manger/ selling. Laptop computing machines: Two laptops in Melbourne office for manager and senior agent and authorized reps have a lap top each. Printers: Three One coloring material bubble jet / Two Black and white optical masers. Waiters: One waiter runs HPML 10 Windowss Microsoft windows little concern waiter 2003 R2 and other one runs HP ML 10 Windows 2003 R2 Internet connexion: Speed is ADSL 2 plus provided by TPG cyberspace 2.2 Organisational Chart George Zaal Director Kellie Rose Administration/ Marketing Insurance A ; Wine Export Alex Jenner Operation Manager Insurance Lee Yan Logisticss and Supply Office for vino export Spirio Bombos IT Manager Johanna Garry Histories Insurance and Wine Export 3 Security Policy 3.1 Security Goals 3.1.1 Duties of the Principle Director Longfellows rule manager assures the security of all calculating assets processed internally or externally. ( Caelli, 1991 ) . This duty entails the execution of equal safe guards, including physical, administrative and proficient, to protect personal proprietorship and other sensitive informations, which may shack within the company s legal power. Giving consideration to Longfellows bing security patterns and past jobs a proficient security plan should incorporate at least the followers: Assign exclusive duty of all hardware and package installings to Spirio or to those who may win his place. Keep a showing and interview procedures for all those who operate or maintain computing machine systems with sensitive company informations. Levels of showing should be performed by the appropriate degree of direction with equal accomplishments to judge campaigners for the function. Specify a control procedure, implemented by appropriate direction to guarantee all new computing machine applications and alterations are physically and technically safe from failure, if informations is peculiarly sensitive so at a lower limit a bomber set of constabularies and duties should be included. Approve all application alterations prior to installing of the application and guarantee the person responsible for the security of the application has appropriate blessing. Review and look into all application proving, to see if the application meets approved security specifications. Upon completion of proving, a alteration of the consequences should be documented. Any interested parties should site the papers, there by admiting the application performs harmonizing to the trial process and meets the security policy. Longfellows rule manager and IT director will carry on and sporadically supervise the security precautions of sensitive application informations. Any amendments shall be documented and organised as portion of security paperss. Monitoring of system applications will be determined at appropriate intervals by direction and IT director. Any procurance of new hardware, package or other calculating peripherals are to be reviewed to guarantee they run into appropriate security demands and they conform to bing security constabularies. Assign duty to the IT director to carry on a hazard analysis of each computing machine installing. The hazard analysis should specify any possible failing with each constituent and aid cut down loss of sensitive informations in a ruinous event. An analysis should be performed whenever a new piece of equipment is introduced into the system, prior to blessing by direction and at periodic intervals non transcending longer than three old ages. Assign duties to guarantee the appropriate eventuality programs are topographic point to cover with a information loss event or equipment failure. These programs should detail the appropriate action/s and responsible parties in order to the return services. Plans should be reviewed when there are alterations to the system or the resulting losingss are increased. 3.1.2 Duties of the Operations Manager The operations director Alex Jenner ( current ) or predecessors shall help the manager and IT Manager in keeping the unity and security of all insurance informations and client contact inside informations. The operations director should adhere to current security policies and guarantee all personal and properness insurance informations is secure from failure. Should guarantee that equal cheques are performed before leting persons to come in or modify sensitive informations. Should guarantee in the event of failure that information is recoverable and that losingss are keep to a lower limit. 3.1.3 Duties of the Marketing Officer The Marketing director Kellie Rose ( current ) or predecessors shall help the manager and IT Manager in keeping the unity and security of all selling informations and email contact inside informations. The selling director should adhere to current security policies and guarantee all personal and properness selling informations is secure from failure. Should guarantee that equal cheques are performed before leting persons to come in or modify sensitive informations. Should guarantee in the event of failure that information is recoverable and that losingss are keep to a lower limit. 3.1.4 Duties of the Financial Controller The fiscal accountant Johanna Garry ( current ) or predecessors shall help the manager and IT Manager in keeping the unity and security of all fiscal informations. The fiscal accountant should adhere to current security policies and guarantee all personal and properness insurance informations is secure from failure. Should guarantee that equal cheques are performed before leting persons to come in or modify sensitive informations. Should guarantee in the event of failure that information is recoverable and that losingss are keep to a lower limit. 3.1.5 Duties of the IT Manager The IT director, with the blessing and way, of the rule manager shall: Issue and enforce security constabularies in line with the companies legal demands company criterions and industry best pattern for implementing calculating security. Ensure any purchase of new calculating equipment, whether package or hardware fitting current security policies Monitor and supply appropriate installations to house calculating equipment, so that ruinous events are minimised and unauthorized entry to sensitive calculating equipment is prevented. Ensure all calculating users are cognizant of system security steps and to react in instances of system failure. Conduct and reappraisal package and hardware system before and after their debut to the system. The reappraisal procedure must be documented and approved by appropriate direction. 3.2 Duties for Goals Position Incumbent Goals Director George Zaal 3.1.1 3.1.1.1 3.1.1.2 3.1.2 3.1.3 3.1.4 3.1.5 Operationss Manager Alex Jenner 3.1.2 Marketing Military officer Kellie Rose 3.1.3 Financial Controller Johanna Garry 3.1.4 IT Manager Spirio Bombos 3.1.5 3.3 Committedness to Security. As Longfellows is chiefly an Insurance agent, security is of the topmost importance. All of Longfellows employees are required to reexamine and subscribe the company s Information Security Policy, as per employee contracts. The aim of these contracts is to educate employees on the sensitiveness of the confidential informations stored on the Longfellows systems and to guarantee that all protections are taken to safe guard Information Assets and bound exposure to those people without a demand to cognize. Personal and Insurance information that is held on by Longfellows is protected through the usage of secure watchwords, firewalls and a locked and restrained premiss. Entree to personal information is limited to those who specifically need it to carry on their concern duties. Longfellows besides maintain physical security processs to pull off and protect the usage and storage of paper records incorporating personal information. Longfellows will merely maintain personal information so long as required by jurisprudence and will take sensible stairss to destruct or for good de-identify personal information when we no longer needed. Longfellows will non unwrap information about you to a company which is non a related entity unless the revelation is required or authorised by jurisprudence, or you have consented to unwraping the information about you. If you apply for an insurance policy, they may necessitate to unwrap your information to our related entities, our distributers such as agents and agents, other insurance companies, and insurance mention agency in order to find your claims history. I believe Longfellows is extremely committed to guaranting calculating security and personal security of all their clients. This degree of security committedness helps to develop a trusting relationship with their clients and unafraid prospective concern in the hereafter. 4. Current Security Status 4.1 Accidents and Catastrophes 4.1.1 Threats and Controls Power rushs, Fire, hardware failures and inadvertent omissions are low hazard events. As the companies chief office is in a major capital power breaks are uncommon, the last reported major power outage was summer of 2009 for Melbourne ( ABC News, viewed 3 May 2009 ) which caused important jobs for most of the metropolis. Rush defenders are placed on all electrical calculating sockets to pretext against unexpected power rushs. Fire could do the most important harm to the calculating system hardware and any non backup informations. The waiter room is protected by a gas extinction system which would protect hardware if the fire started else ware. All desktops would necessitate replacing as the fire system is a standard H2O system. Accidental omissions are non common events, if they were to happen informations from the backup thrust could be used to reconstruct services and informations. Hardware failures may ensue in non antiphonal constituents of the system, if a constituent is suspected of being faulty a suited replacings are readily available at a really low cost. 4.1.2 Data Analysis Figures are derived from Figure 1 Appendix A. The likeliness of exposure is a quantitative figure scaled from 0.0 to 1.0. The higher the figure indicates a high opportunity of exposure to a menace. A figure of 0.3 for power loss indicates this menace is non likely to happen shortly but still may go on at some point. Unrelated to likelihood value Level of exposure figure is per centum figure which indicates the effect should a menace eventuate. A high per centum figure would bespeak for illustration, that should a fire destroy the system so merely approximately 25 % of the system would be affected, insurance A ; personal informations could be restored from backups and waiter and desktop package re-installed from purchased package discs, all located off-premise. The cost of replacing all calculating hardware is around $ 12,000. Control bing are based upon the in agreement values of controls in topographic point to battle possible menaces, Longfellows has a dedicated waiter room with a gas fire suppression system. It has a really high apparatus associated with the apparatus The one-year loss anticipation figure is derived from the value of the plus and it quantitative value should it be compromised by a menace. As most of the menaces are see low the loss is every bit low. Combined control effectivity is a per centum figure which represents the entire effectivity of all controls against menaces for information onslaughts it s estimated to be about 99 % effectual. Savingss are calculated against the one-year cost anticipation combined with control effectiveness figure, weighted against the cost of implementing the controls. Covered Loss describes the exposed cost against the possible nest eggs. 4.1.3 Cost Effectiveness of Controls The entire hazard analysis is planned for five old ages, if the company were non to see against the possible menaces so they could anticipate to lose around $ 4000 per twelvemonth. The high apparatus cost with the fire system reduces nest eggs for the first three old ages until the system pays for itself in old ages four and five. Hardware failure and package omissions are good covered by informations backup and the comparatively inexpensive cost of calculating system on the market. Security menaces from internal and external users are besides considered in the analysis. Logins from a distant beginning utilizing a valid user ID is possible given entree is granted to insurance field agents, likely interlopers could utilize cardinal lumbermans or package sniffers to observe an unfastened session with Longfellows waiter and addition entry via utilizing valid login certificates. Internal user may inadvently may derive entree to countries of sensitive informations through the internal web, to which they may non hold rights to position. This sort of invasion may travel unnoticed but if the employee were of all time to travel on so sensitive information may be used or divulged to an un-trusted outside beginning. 4.2 Datas Attacks 4.2.1 Threats and Controls As Longfellows employ s two waiters, eight desktops and two remote login computing machines for field employees it has high exposure to data onslaughts. Internet entree is allowed with no limitations so the menace from viruses either come ining from internal or external beginnings is high. Types of informations onslaughts may include worms, Trojan horses, and Spam or electronic mail lumbermans. As with any company or single utilizing the cyberspace, the menace of virus and other malicious package is considered high. Controls against this sort of onslaught are by and large provisioned for by utilizing the latest anti virus package, presently Longfellows usage Symantec Antivirus corporate edition, with a 12 month renewable licence. Two other controls are considered the Native O/S, Longfellows uses Microsoft little concern waiter, which contains security logs as portion of the O/S. Logs can capture any unusual events which may happen when the system is running. The other control is the external difficult rive which is used for regular backups of the sever informations, the thrust is maintain off premiss and is used hebdomadally. 4.2.2 Data Analysis The likeliness of exposure is a quantitative figure scaled from 0.0 to 1.0. The higher the figure indicates a high opportunity of exposure menace. A figure of 0.9 indicates this menace is likely to happen at some point. Unrelated to likelihood value Level of exposure figure is per centum figure which indicates the effect should a menace eventuate. A high per centum figure would bespeak for illustration, that should a virus enter the system so 85 % of the system could be affected. Control bing are based upon the in agreement values of package or hardware controls in topographic point to battle possible menaces, Longfellows uses antivirus package which is renewable every 12 months, a portable difficult thrust for system backup and the pick of O/S for the system ( i.e. Windows ) used for logging studies and audits of the system. The one-year loss anticipation figure is derived from the value of the plus and it quantitative value should it be compromised by a menace. A virus for illustration could be the company a $ 100,000 in corrupted informations. Each twelvemonth the value of a loss increases a 100 % . Combined control effectivity is a per centum figure which represents the entire effectivity of all controls against menaces for information onslaughts it s estimated to be about 80 % effectual. Savingss are calculated against the one-year cost anticipation combined with control effectiveness figure, weighted against the cost of implementing the controls. Covered Loss describes the exposed cost against the possible nest eggs. 4.2.3 Cost Effectiveness of Controls The entire hazard analysis is planned for five old ages, if the company were non to see against the possible menaces so they could anticipate to lose in surplus of $ 1000000 in lost informations but by passing $ 5000 over five old ages could anticipate to command any of the menaces happening at all. 5. Decisions Longfellows implements some really good criterion patterns for procuring calculating informations, the usage of an industry trusted waiter which comes bundle with security characteristics built in, for illustration user histories, watchword creative activity and user privileges on the web. A current anti-virus bundle is used in concurrence with the O/S to protect against information onslaughts, with updates this should maintain the system free from viruses introduced via cyberspace or by work users. As an insurance agent they evidently keep sensitive personal and fiscal informations about clients so to protect this plus, they use of an external Hardrive kept of premiss, and used on a regular basis to maintain the system current in the event of system failure or inadvertent omissions. The chief disbursal is for the fire system in the waiter room, its initial spending was high and the company should truly merely be seeing a return on this in the hereafter. On the whole most controls have been comparatively inexpensive to implement and supply great security benefits. Overall the administration is non in demand of a major system upgrade, but could fasten overall security by implementing some of the undermentioned recommendations. 6. Recommendations As Longfellows system is comparatively unafraid merely one recommendation is presented. This is to fasten security with regard to external and internal interlopers. As two users have remote login with the system, it possibly possible for hackers to happen ways to externally commandeer the system. Detailed below is analysis for commanding such menaces. 6.1 Internal A ; External menaces 6.1.1 Threats and Controls Whether by accident or with malicious purpose the menace of unwraping secure information by internal employees is a existent menace. Longfellows employees are signed into contracts saying confidentiality about company clients, but it is still possible for an internal user to derive entree to unauthorized countries of a system by-passing security characteristics. The menace of external interlopers is of higher importance sophisticated computing machine usage s can utilize arrange of tools to derive entree to procure system, package sniffing, cardinal lumbermans and unfastened Sessionss are ways external user addition entree so go forth a back door for ulterior entry, all the clip seeking to intensify privileges within the system. It s recommended that Longfellows use a two fold attack to command these types of menaces An ISA endeavor firewall, a Microsoft merchandise specifically designed to run with Windowss little concern server a basic bundle provides unafraid coverage for a little to medium size web 2. Another hardware device a NIDS ( web invasion sensing system ) switch. All traffic will go through through the inline NIDS. Unlike a regular bridging device though, the inline NIDS will inspect the package for any exposures that it is configured to look for. If a package contains a piece of information that trips a signature the package can be forwarded or dropped and either logged or unlogged. This type of system is utile if you do nt desire the aggressor to cognize that their onslaughts are unsuccessful or if you want the aggressor to go on to assail one of your systems in an effort to garner more grounds. NIDS can besides be configured to analyze packages within the internal web. 6.1.2 Data Analysis The likeliness of exposure is a quantitative figure scaled from 0.0 to 1.0. The higher the figure indicates a high opportunity of exposure menace. A figure of 0.7 indicates this menace is extremely likely to happen at some point. Unrelated to likelihood value Level of exposure figure is per centum figure which indicates the effect should a menace eventuate. A high per centum figure would bespeak for illustration, that should an interloper enter the system so 85 % of the system could be affected. Control costing is based upon the in agreement market values of package or hardware controls in topographic point to battle possible menaces Longfellows if they were to implement these controls would be around $ 10,000 The one-year loss anticipation figure is derived from the value of the plus and it quantitative value should it be compromised by a menace. An external onslaught for illustration could be the company a $ 200,000 if the interloper went unnoticed and stole personal information of Longfellows clients. Each twelvemonth the value of a loss increases a 100 % . Combined control effectivity is a per centum figure which represents the entire effectivity of all controls against menaces for information onslaughts it s estimated to be about 80 % effectual. Savingss are calculated against the one-year cost anticipation combined with control effectiveness figure, weighted against the cost of implementing the controls. Covered Loss describes the exposed cost against the possible nest eggs. 6.1.3 Cost Effectiveness of Controls Longfellows would derive vastly from implementing tighter control of internal and external aggressors, really important personal informations, which may include recognition and banking inside informations could be capable to unauthorized entree. By put ining a more robust firewall and NIDS system security breaches become more hard for likely interlopers. The cost of puting the controls in topographic point far outweighs the loss, if a security breach of all time occurs. 7. Execution of recommended controls 7.1 Timetabling See Appendix C -Gantt chart 7.2 Duty Control Undertaking Description Undertaking duty Supervision NIDS switch Acquisition A ; Purchase Financial Controller IT Manager Director Installation A ; Initial proving IT Manager Director Final System proving IT Manager Director ISA Firewall Acquisition A ; Purchase Financial Controller IT Manager Director Installation A ; Initial proving IT Manager Director Final System proving IT Manager Director 7.3 Schedule for Review of Security and Control Items Item for Review Duty Frequency Virus package reappraisal IT Manager Weekly O/S upgrade + licensing Financial accountant Annually External Hardrive proving + ascent IT Manager 3 months Rush defenders proving Constructing care officer A ; IT director 12 months Fire system proving Fire section 6 months ISA Firewall IT director 3 months NIDS switch IT trough 3 months Password file Administration officer Weekly Security policy reappraisal IT Manager/ Director 12 months

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Scanning Electron Microscope - Essay Example Areas that range from a width of one centimetre to as minute as five microns can be seen in scanning mode using techniques in scanning electron microscopy. The magnification ranges from 20X to 30,000X with spatial resolution of fifty to one hundred nanometres. The SEM also has the capability of analysing specific locations found on the sample, with this approach being particularly useful in semi-quantitative and qualitative determination of crystal orientations, crystalline structure, and chemical compositions. A scanning electron microscope images samples via scanning them with electron beams with the sample in a raster scan pattern (Reimer, 2008 p 97). The electrons released by the SEM interact with sample atoms and produce signals that consist of information revealing the composition and topography, as well as electrical conductivity. In its functioning, accelerated electrons carry specific amounts of kinetic energy which is dissipated in form of various signals derived from inter actions between the sample and the electrons (Reimer, 2008 p97). This occurs when the electrons incident on the sample are decelerated on contact with the sample. The received signals could be in form of secondary electrons, heat, visible light, photons, and diffracted backscattered electrons. Backscattered electrons and secondary electrons are usually utilized for sample imaging, with secondary electrons also used for showing the topography and morphology of the sample with backscattered electrons are used for contrast illustration of multiphase sample composition. X-rays are produced by through inelastic collisions of electrons incident on the sample and the electrons present in the sample atom’s discrete shells. During these electrons return to their lower energies, they give out fixed wavelength X-rays. Each element in the mineral being investigated produces X-rays which are characteristic to it when excited by the beam of electrons. This process is non-destructive as the se X-rays do not cause any change in volume of the sample when they are lost. Thus, the same material can be investigated continuously. A scanning electron microscope has the following essential components (Reimer, 2008 p90): Source of electrons Electron lenses Stage for the sample Sensors for detecting all signals required Devices for data output and display Power supply, cooling system, vacuum system, electric and magnetic field free room, and a vibration free floor SEMs will always possess one detector usually for detection of secondary electrons, with most having more detectors. The accommodated detectors critically determine the instrument’s specific capabilities. Scanning electron microscopes are normally used for the generation of high-resolution images of various samples and their chemical spatial variations (Goldstein, 2009 p63). They aid in the acquisition of elemental maps or EDS assisted spot chemical analysis and phase discrimination using the sample atomsâ€℠¢ mean atomic number. They also give the compositional maps which they base on trace element differences. The scanning electron microscope is also used for the identification of phases with basis on crystalline structure and/or qualitative chemical analysis (Goldstein, 2009 p63). Specific measurement of extra small features which could be to fifty nanometres in size can also be done using scanning electron

Managing User Accounts In Linux Essay Example for Free

Managing User Accounts In Linux Essay Linuxs most notable advantage over other operating systems such as Windows and Mac is security and in order for a user to modify critical components of the system, such as user accounts, is to have access rights of a ROOT. The root is at the top level of Linuxs user hierarchy and has all the privileges to access all resources. To login as root, a user must use the command su username. After pressing the ENTER key, the system will prompt the user to type in the corresponding password. After entering the correct password, the user will inherit full access privileges including the right to modify other users account information. Attempting to enter the correct password will deny the user from inheriting the roots privileges. # su [screenshot] Let us now attempt to create a new user called bozo. But first, let us check if that username is not yet taken. # id bozo [screenshot] Since username bozo is still available we can now create his user account. # useradd bozo -d /home/bozo -u 600 We have just created a username called bozo and makes his default folder under /home/bozo and gave him the UID of 600. by the way, UIDs are unique identifiers of users. Users can be a representation of both human users and services running in the Linux system. UIDs are used by Linux in relation to his password and privilege information stored in the /etc/passwd, /etc/shadow and /etc/group. One of the very first thing Linux does when creating a new user is to copy the files from the skeleton folder, which contains whatever files the admin wants to give to new users, into the newly created users folder. Now, let us try to take a look at those files by displaying a detailed listing of files including hidden ones. # ls –la /home/skel/ So far so good. Now let us try creating another user and call her bozoette. # useradd bozo -d /home/bozo -u 600 We had an error. As stated earlier, UIDs are unique. Since we attempted to create a user and assigned the same UID with bozo, the system denied our request. But what if we do want give bozoete the UID #600? One of the many ways to do it is to first change bozos UID, say 601 and then create bozoettes user account using the newly-vacant UID of 600. Change bozos UID from 600 to 601. # id bozo # usermod -u 601 bozo # id bozo Then create bozoettes new account with UID 600. # useradd bozoette -d /home/bozoette -u 600 Now we have two new users bozo(uid:601) and bozoette(uid:600) with user directories /home/bozo and /home/bozoette, respectively. Note that user accounts remain inactive until a password is assigned to them. Let us now activate the two new user accounts by assigning passwords to them. # passwd bozo # passwd bozoette Users bozo and bozoette are now active and users can now login to the system using the correct username and password combinations for the accounts. REFERENCES Linux Headquarters. Adduser: Adding A New User. http://www. linuxheadquarters. com/howto/basic/adduser. shtml Advanced Horizons. Linux Users. http://www. ahinc. com/linux101/users. htm Mario P. Free November 28, 2007. Tutorial @HowTo. fm. Command Line User Management. http://howto. fm/e/a/title/Command-Line-User-Management-in-Linux/ Notaras, George. 6 November 2005. G-Loaded! User management from the command line http://www. g-loaded. eu/2005/11/06/manage-users-from-the-command-line/

Tennis Ball Investigation :: Papers

Tennis Ball Investigation Aim: Investigate the factors that affect the bounce of a tennis ball. Key factors (variables): 1) Height of drop 2) Surface of bounce 3) Gravitational pull 4) Room temperature/ball temperature 5) Weight of ball 6) Material of ball 7) Brand of ball 8) Age/wear of ball 9) Size of ball 10) Force of drop/push How the key factors will affect the bounce: 1) The higher the drop the higher the bounce 2) The harder the surface the higher the bounce 3) The weaker the gravitational force the higher the bounce 4) The warmer the ball the higher the bounce 5) The lighter the ball the higher the bounce 6) Discontinual-unknown 7) Discontinual-unknown 8) The newer the ball the higher the bounce 9) The smaller the ball the higher the bounce 10) The more force put into the drop/push the higher the bounce I have chosen to investigate 1) Height of drop. Prediction ========== [IMAGE] I believe that the higher the height the ball is dropped from the higher the bounce, because when the ball is lifted the higher it is lifted the more energy is needed to lift it. Therefore more energy is converted from chemical potential energy in the body, to kinetic energy when the ball is being lifted, to gravitational potential energy (G.P.E) when the ball has been lifted to the height of the drop. The more G.P.E the ball has a the start of the drop (point A), the more energy is converted to kinetic energy while the ball is dropping and then to elastic potential energy (E.P.E) while it is static on the floor (point B). At this point the ball looses a percentage of its energy to sound and heating the floor. I know that it is a percentage of its energy that it looses rather than a fixed amount because I know that the more energy the ball has the louder the

Production Functions and Cost Functions in Oil Pipelines Essay

1. For an 18-inch pipeline designed for 150,000 barrels per day, what is the short-run cost per barrel (per thousand miles) of transporting crude oil if the throughput is (a) 50,000 barrels per day (b) 100,000 barrels per day (c) 150,000 barrels per day? Using chart 7, a) Cost of transporting 50,000 barrels would be 30 cents. b) Cost of transporting 100,000 barrels would be 17 cents. c) Cost of transporting 150,000 barrels would 16 cents. 2. Can a 16-inch pipeline with 10,000 horsepower transport 100,000 barrels of crude oil per day? If a firm has a 20-inch pipeline, how much horsepower must be used to transport 150,000 barrels per day? This question can be approached in two ways. Both the approaches give different answers. a. Using Chart 1, a 16-inch pipeline with 10,000 horsepower will NOT be able to transport 100,000 barrels of crude oil per day. The pipeline will require at least 20,000 horsepower. If a firm has a 20-inch pipeline and wants to transport 150,000 barrels per day, they should use 20,000 horsepower. b. Using formula , T = (H) (D ) / (0.01046) When D= 16 inches H= 10,000, we get T= 349619.69 barrels. Thus, a 16 inch line pipeline with 10k horsepower can transport 100k barrels of oil. If the pipeline is 20 inch and we need to get 150k barrels of oil, using the formula, we will need 357.79 3. Does it appear that there should be many pipelines competing to transport crude oil over a particular route? Why or why not? I don’t think there would be multiple lines competing to transport crude oil over a particular route unless there is more demand than what is currently being supplied. It does not make economic sense to run pipelines at less than maximum capacity as they require a huge investment. The cost of laying the line and the materials costs of steel, pipe coating, line block valves, corrosion protection and so forth are a huge investment and would not be feasible for an oil company if the pipeline would not be supplying oil to its fullest capacity. 4. According to Leslie Cookenboo, plant D in Figure 1 â€Å"is not the optimum plant for the output at which it itself is most efficient (Q1).† How can this be? Explain. Optimum point is the point where the output costs the least per unit. The point where Q1 falls on the curve of plant E is lower than the lowest point on the curve of plant D. Therefore plant E can produce D’s optimum output more cheaply than D. 5. Leslie Cookenboo stresses the difficulties and limitations of estimating cost functions on the basis of historical cost data, rather than engineering data of the sort he uses. What are these limitations and difficulties? According to Leslie Cookenboo, where engineering estimation is feasible for cost studies it should be used, since actual costs may be subject to any number of erratic variations arising from construction or operating conditions unique to particular cases. In cases where engineering data is not available, historical data can be used, but using historical data makes the cost estimation prone to errors as it does not take into account the specific environmental factors that affect a particular situation. 6. Explain in commonsense terms why there are economies of scale in pipelines. In general, the average cost of transporting a barrel of oil decreases as total throughput increases. That is, oil pipelines are characterized by  economies of scale. There are several reasons for this: a) Setup Costs: The cost planning, design and installation are fixed setup costs. b) Volumetric Returns to Scale: Oil Pipelines are characterized by volumetric returns to scale. This happens because the cost of steel depends on its surface area while the capacity of the pipeline depends on its volume. Also, the amount of horsepower required is determined by resistance to flow which is decreasing in the diameter of the pipe. In the case, the production function is estimated as: This production function is characterized by increasing returns to scale. Doubling line diameter and horsepower leads to more than a fourfold increase in output but only a doubling in costs. c) Long run fixed costs: The cost of the personnel that monitor the pipelines is a long-run fixed cost due to the fact that a minimum number of personnel is required to monitor the pipelines regardless of the throughput. d) For the same level of reliability, larger pipelines require relatively fewer pumps in reserve. 7. Leslie Cookenboo has been senior economics adviser in the corporate planning department of Exxon Corporation. In what ways might Exxon have made use of his findings? Leslie Cookenboo’s study has 3 major findings: a. Economies of scale characteristic of the operation of pipe lines require that oil must be carried conglomerated in as large quantities as is possible in large diameter lines. This gives the least transportation costs obtainable. Exxon can reduce its transportation costs by transporting oil in large quantities in large diameter lines. b. Pipelines should not be run at throughputs appreciably below capacity; otherwise higher costs per barrel will be incurred than need be. Exxon can avoid higher costs per barrel by operating the pipelines at maximum capacity. c. Capacity of a large line can be expanded appreciably without increasing average costs. Decreased average costs can be obtained with moderate expansions.

Case study on “If two heads are better than one, are four even better”

â€Å"If two heads are better than one, are four even better† Maggie Becker, 24, is a marketing manager for Kavu, a small chain of coffee shops in eastern Ohio. Recently,Maggie’s wealthy uncle passed away and left to Maggie, his only niece, $100000. Maggie consider her current salary to be adequate to meet her current living expenses, so she’d like to invest the money so that when she buys a house she’llhave a nice nest egg on which to draw. One of Maggie’s neighbours, Brian, is a financial advisor. Brian told Maggie there was a virtually endless array of investment option. She asked him to present her with two of the best options, and this is what he came up with:1. A very low risk mutual fund. With this option, based on the information Brian provided, Maggie estimates that after 5 years she stands virtually zero chance of losing money, with an expected gain of approximately $7000.2. A moderate-risk mutual fund. Based on the information Brian provi ded her, Maggie estimates that with this option she stands a 50 percent chance of making a $40000 gain but also a 50 percent chance of losing $20000.Maggie prides herself on being rational and objective in her thinking. However, she’s unsure of what to do in this case. Brian refuses to help her, telling her that she’s already limited herself by asking for only two options. While driving to her parents’ house for the weekend, Maggie finds herself vacillating between the two options. Her older brother is also visiting the folks this weekend, so Maggie decides to gather her family around the table after dinner, lay out the two options, and go with their decision â€Å"You know the old saying-two heads are better than one,† she says to herself, â€Å"so four heads should be even better.†Questions1.Has Maggige made a good decision about the way she is going to make the decision?2.Which investment would you choose, why?3.Which investment do you think mos t people would choose?4.Based on what you have learned about groupshipt, which investment do you think Maggie’s family choose?

Microsoft essays

Microsoft essays United States vs. Microsoft Corporation Microsoft first came under serious government scrutiny in 1990, and was sued by the US Government for violations of the Sherman Antitrust Act in early 1994. After a series of accusation and rebuttals, Microsoft entered into a consent agreement with the United States in 1995 that required it to offer a version of its Windows 95 operating system without its Internet Explorer browser. Only one manufacturer, Packard Bell licensed this browser less version, and then only for some of its laptop computers. The consent decree also contained a few other restrictions, which Bill Gates, chairman of Microsoft, termed nothing. As a result of this consent decree, the Government dropped its charges against Microsoft. The consent decree also prohibited Microsoft from requiring OEMs (Original Equipment Manufacturers) to license any other product as a condition of their Windows licenses. The Government continued its investigation into Microsoft, primarily at the urging of Microsofts competitors who felt that Microsoft was ignoring the conditions of the consent decree. Netscape and Sun Microsystems continued to pressure the DOJ for action. The DOJ continued its investigations and actively pursued investigations into the alleged monopolistic activities of Microsoft Corporation. During the course of the investigation, Microsoft and the DOJ (Department of Justice) continued to negotiate a new consent decree. After 18(eighteen) unsuccessful drafts, the DOJ, in conjunction with 20 (twenty) states attorneys general, filed suit against Microsoft on May 18, 1998. The complaint charged Microsoft with four counts of violating the Sherman Act, with two violations under Section 1 and two violations under Section 2 . The charges were : Section 1 (count a) Exclusive Dealing Microsoft had forced computer companies that used its Windows operating system to sign agreements tha...

Meaningful Life Lessons We Learn From Teachers at School

Meaningful Life Lessons We Learn From Teachers at School Teachers spend a lot of time with their students throughout the course of the year. They are influential by nature and often take advantage of opportunities to teach life lessons when they present themselves. Life lessons taught by teachers have made a lasting impact on many students. In many cases, sharing these life lessons can have a far greater impact than teaching standard based content. Teachers often use both direct and indirect opportunities to incorporate life lessons. Directly, there are natural components of schooling that lead to learning life lessons. Indirectly, teachers often take advantage of what they refer to as teachable moments to expand topics or to discuss aspects of life that are brought up by students during class. 20. You Will Be Held Accountable for Your Actions Student discipline is a major component in any classroom or school. There is a certain set of rules or expectations by which everyone is expected to follow. Choosing not to adhere to them will result in disciplinary action. Rules and expectations exist in all facets of life, and there are always consequences when we push the limits of those rules. 19. Hard Work Pays Off Those who work the hardest typically achieve the most. Teachers understand that some students are more naturally gifted than others, but even the most gifted student will not achieve much if they are lazy. It is nearly impossible to be successful at anything if you are not willing to work hard. 18. You Are Special This is a core message that every teacher should drive home to every student. We all have our unique talents and qualities that make us special. Too many children feel inadequate and unimportant. We should strive to ensure that all students believe that they matter. 17. Make the Most of Each Opportunity Opportunities present themselves on a regular basis throughout our lives. How we choose to respond to those opportunities can make all the difference in the world. Learning is a significant opportunity for children across this country. It is essential for teachers to convey the message to students that each day presents a new opportunity to learn something new. 16. Organization Matters A lack of organization can lead to chaos. Students who are organized have a much greater chance of being successful later on in life. This is a skill that begins early on. One way that teachers can drive home the importance of organization is to hold students accountable for how their desk and/or locker looks on a regular basis. 15. Pave Your Own Path Ultimately, every person determines his or her future through decision making over a long period of time. It is easy for experienced adults to look back and see exactly how we paved the path that led us to where we are today. This is an abstract concept for students and teachers should spend time discussing how our decisions and work ethic at even a young age can shape our future. 14. You Cannot Control Who Your Parents Are Parents have the largest influence on any child. In some cases, this influence may be negative in nature. However, most parents want the best for their children although they may not know how to give it to them. It is vital that teachers let their students know that they have the capability to control their own future, making different decisions than their parents, which can lead to a better life. 13. Remain True to Yourself Ultimately it does not matter what others think about you. Making a decision based on what someone else wants almost always turns out to be the wrong decision. Teachers must convey the message of believing in you, trusting your instincts, setting goals, and reaching those goals without personal compromise. 12. You Can Make a Difference We are all potential change agents, meaning we have the potential to make differences in the lives of those around us. Teachers demonstrate this directly on a daily basis. They are there to make a difference in the lives of the children they are charged to teach. They can teach students how they can make a difference by incorporating different projects such as a canned food drive, cancer fundraiser, or another community project. 11. Remain Trustworthy Being trustworthy means that those around you believe that you will tell the truth, keep secrets (so long as they do not put others in danger), and will carry out tasks that you have promised to do. Teachers drive home the concepts of honesty and loyalty on a daily basis. It is a core part of any classroom rules or expectations. 10. Structure Is Critical Some students will initially reject a structured classroom, but ultimately they will come to enjoy it and even crave it when it is not there. A structured classroom is a safe classroom where teaching and learning are maximized. Providing students with a structured learning environment can show students that having structure in their life is a positive aspect that they need more of. 9. You Have the Greatest Control of Your Destiny Many people believe that their destiny is dictated by the situation in which they inherited by birth. Nothing could be further from the truth. Every person controls his own destiny once they reach a certain age. Teachers fight this misconception all the time. For example, many students believe that they cannot go to college because their parents did not go to college. This is a cycle that schools work hard to break. 8. Mistakes Provide Valuable Learning Opportunities The greatest lessons in life result because of failures and it is the lessons learned from those mistakes that help make us whom we become. Teachers teach this life lesson on a daily basis. No student is perfect. They make mistakes, and it is a teachers job to ensure that their students understand what the mistake was, how to fix it, and to give them strategies to ensure that those mistakes are not repeated. 7. Respect Has to Be Given to Be Received Good teachers lead by example. They give their students respect knowing that the majority of the students will, in turn, give them respect back. Teachers often have students who come from backgrounds where little respect is expected or given in the home. School may be the only place where respect is given and expected to be given back. 6. Differences Should Be Embraced Bullying is one of the largest problems in schools today often resulting because of perceived differences that make some students an easy target based on how they look or act. The world is full of unique and different people. These differences, no matter what they are, should be embraced and accepted. Many schools now incorporate learning opportunities into their daily lessons to teach kids how to respect individual differences. 5. There Are Aspects of Life That Are Beyond Our Control The process of school is one big lesson on this. Many students, especially older ones, do not want to go to school but go because they are required by law. Once they get there, they are learning lessons created by a teacher with little to no student ownership. These lessons are being taught because of state-directed standards. Life is no different. There are many aspects of our life with which we have little control. 4. Bad Decisions Lead to Serious Consequences Not every poor decision will lead to a bad consequence, but some of them will. You may get away with something once or twice, but you will eventually be caught. Decision making is a critical life lesson. Students should be taught to think each decision through, never make a decision in haste, and be prepared to live with the consequences associated with that decision. 3. Good Decisions Lead to Prosperity Making smart decisions is critical to individual success. A series of poor decisions can quickly lead to a road of failure. Making a good decision does not necessarily mean it is the easiest decision. In some cases, it is going to be the harder decision. Students must be rewarded, recognized, and praised for good decision making as often as possible. Teachers can help make good decision making a habit that will follow students throughout their life. 2. Working Together Cooperatively Benefits Everyone Teamwork is a valuable skill taught in schools. Schools often provide the first opportunities for children to work together with other children who may be different. Working cooperatively is imperative to both  team and individual success. Students must be taught that each individual part working together makes the team successful. However, if one part quits or does not perform adequately, everyone fails. 1. You Can Become Anything It is clichà ©, but it is also a valuable lesson that teachers must never stop teaching. As adults, we know that it is nearly impossible to break a generational rut. However, we should never give up hope that we can reach students and help them break a cycle that has held other family members back for many generations. It is our basic duty to provide hope and belief that they can achieve and become anything.

Eating Jesus' Flesh and drinking His Blood Research Paper

Eating Jesus' Flesh and drinking His Blood - Research Paper Example The Hebrew writer tells us that His blood was shed for the transgressions of those who lived under the first testament, as well as those who live under the second (Heb. 9:15).   So, all humanity, who desire salvation, are dependent upon the blood of Christ  Ã‚   In this lesson, we shall  Ã‚   list some of the things that are said to be accomplished by the blood of Christ. VERSES 51-52:  Ã‚   I AM THE LIVING BREAD 51I am the living bread which came down out of heaven. If anyone eats (Greek: phage) of this bread, he will live forever. Yes, the bread which I will give for the life of the world is my flesh (Greek: sarx)." 52The Jews therefore contended with one another, saying, "How can this man give us his flesh to eat?"   "I am the living bread which came down out of heaven" (v. 51a).   This "living bread" parallels the "living water" that Jesus offered the Samaritan woman (4:10).   "If anyone eats (phage) of this bread, he will live forever" (v. 51b).   Phage is the ao rist of esthio (to eat), and thus represents a one-time action.   To eat of this bread, in this context, means the once-and-for-all action of accepting or believing in Christ.   "Yes, the bread which I will give for the life of the world is my flesh (Greek: sarx)"(v. 51c). Jesus does not retreat from the offense of his words, but instead adds to it with his mention of flesh (sarx). This is sacrificial language. The Torah requires ritual sacrifice of animals, and specifies how they are to be prepared and how their flesh is to be used. Some flesh is to be burned on the altar and other flesh is to be eaten.   Jesus makes his sacrifice in behalf of the world –– not just Israel (see also 3:16-17).   "The Jews therefore contended with one another, saying, "How can this man give us his flesh to eat?† (v. 52).   "Flesh" is a provocative word, raising the specter of cannibalism.   No observant Jew would consider eating human flesh. VERSE 53:   UNLESS YOU EAT AND DRINK 53Jesus therefore said to them, "Most certainly I tell you, unless you eat (Greek: phagete) the flesh (Greek:   sarka –– from sarx)of the Son of Man and drink his blood, you don't have life in yourselves. "Most certainly I tell you" (v. 53a).   These words make emphatic that which follows.   "unless you eat (phagete)the flesh(sarka –– from sarx) of the Son of Man and drink his blood, you don't have life in yourselves" (v. 53b).   The title that Jesus uses for himself here is Son of Man, which is a less provocative title than Messiah. The first significant issue here is whether Jesus' words are Eucharistic in nature (referring to the Lord's Supper) or simply incarnational/sacrificial (referring to the incarnation and the cross).   The question is significant.   Is Jesus emphasizing participation in the Eucharist here?   Should a sermon based on this text emphasize participation in the Lord's Supper?   Scholars are divided on this question.   My conclusion is that incarnational, sacrificial, and Eucharistic emphases are intertwined in 6:51-58, and that the emphasis shifts to favor the Eucharistic at verse 51c.   If this is correct, it is appropriate, perhaps even important, to emphasize participation in the Lord's Supper when preaching from this text. We should also note two things that were happening at the time of the writing of this Gospel that might have influenced the author to emphasize the eating of Jesus flesh and the drinking of his blood:

Inclusion and the Inclusive Learning Environment Essay - 2

Inclusion and the Inclusive Learning Environment - Essay Example also requires that the teacher involves recognizes that all learners are different in their own ways and therefore, what may look helpful and good for the attainment of goals for one learner may not necessarily be good for another learner. In seeking to understand the inclusive environment, it is also crucial to consider that each learner has something unique to add to the learning environment that can be of help to other learners. Students come from different background with varying upbringing. It is therefore crucial that a teacher is able to harmonize them to get them to live in peace and unity (Willis, 2009). An inclusive environment is also characterized by flexible approaches to the learning process (Willis, 2009). The world of education is very dynamic as it evolves each decade with new needs arising every time. It is therefore of great need it is reassessed each time and the necessary changes made. The changes can be attributed to the increasing educational opportunities across the globe. Consequently, it is of essential need, those teachers to be able to nurture the full potential of each student. By teachers being in a position to model inclusive learning attitudes in their students, they are able to learn and apply the strategies as they acknowledge their differences and have profound respect for diversity. Examples of strategies used in the inclusive environment are that regarding how teachers nod learners interact and relate to one another (Willis, 2009). This involves use of the respectful vocabularies and terminologies towards one another. Good communication strategies ensure that comments and views are not mistaken to be discriminatory. In addition to this, the body language should also be appropriate and decent at all times. Another strategy is that which involves, the kind of teaching resources the teacher employs (Willis, 2009). The resources ought to be suitable and compatible with all the learners’ needs. Let no learn feel sidelined or