Thursday, October 31, 2019
What and why do americans need the fda What are all the benefits of Research Paper
What and why do americans need the fda What are all the benefits of the FDA PROs of the fda - Research Paper Example FDA is a federal agency headed by a commissioner who is appointed by the President of the US (Whittaker and Walter, The Purpose par. 1). Its precursor agency was the Food, Drug, and Insecticide Administration which was reorganized from the Bureau of Chemistry in 1927 (Lee and Sprague, History par. 3). In 1930, the name of the agency was changed to Food and Drug Administration (par. 3). It was said to protect not only the interest of the consumers but also the pharmacology industry due to some complexities that it has encountered in the process of regulation (Jacobs and Carson-Dewitt par. 1). The earliest functions of the FDA were set forth in the Food, Drug, and Cosmetic Act of 1938 which was passed after the poisoning of more than a hundred people from a drug sold by a Tennessee-based company (Lee and Sprague, History par. 3). The Act mandated that all drugs should pass the FDA approval before being released into the market (par. 3). Moreover, FDA was required to provide a set of safety standards for food and drugs, and that drugs should contain detailed labels and proper instructions for use (par. 3). Its scope of functions increased with the passage of other laws (e.g. Food Additives Amendment of 1958, Drug Abuse Control Amendments of 1965, 1976 Medical Devices Amendments) (par. 5). One-fourth of all the products in the US market are regulated by FDA as of 2008 (Lee and Sprague, FDA Approvals par. 3). Pharmaceutical firms are allowed by law to advertise their products which may not be accurate since adverts are made to exaggerate in order to convince consumers to buy their products. The FDA has the power to regulate the contents of the advertisements so that only a ââ¬Å"balanced perspectiveâ⬠will be presented to consumers and end-users (DiLascio, FDA Regulations par. 1). Pharmaceuticals firms have also resorted to the DTC strategy in marketing their products. DTC refers to the Direct-to-Consumer approach that tends to reach consumers directly through
Tuesday, October 29, 2019
Product Design - analysis of the XBox 360 Essay Example for Free
Product Design analysis of the XBox 360 Essay Introduction: The reason that I have chosen the Xbox as the item to do this project on is because of the following reasons. * It has several add-ons which can be used and are used on a constant basis * I am an Xbox owner myself and know its pros and cons and know a severe amount about it. Along with these reasons the Xbox 360 has an expandable memory for music and photos. On the Xbox you can save games to the hard drive which comes in very handy if your and gets scratched this is how you resolve it without having to buy a new game. The expandable memory on these consoles depends on the type of Xbox bought. For example the elite console has an expandable memory up to 250 GB. This 250 GB is for also watching and recording sky on just like the new sky plus box. You can record movies and keep on your hard drive to watch again and again. Aesthetics: The Xbox aesthetics are different depending on which version you buy. The Arcade and Premium versions of the Xbox 360 are very similar with a smooth rectangular shape with rounded edges and a big circular button in the centre with small green lights surrounding it. One is black (Premium) and one is white (Arcade) in colour with some green and silver areas throughout. The arcade is the cheaper of the two as it doesnt have the same attachments and variety of facilities that the elite has but is more well known as the colour of the Xbox as being white as it is the most often bought. Although they each have a regular colour, people are able to buy any of hundreds of different covers which you can put on easily by yourself. Durability: The Xbox 360 console is not very durable. Beware of letting it fall as it will most definitely smash. Also beware of even letting it tip over as it may not break but it will break whatever game is inside it at the time it falls. This is called laser marks or scratches and is the problem that I had referred to earlier. Although the console cannot survive drops, the controller can survive the occasional drop. Consumer/ Users: The main consumers and users of the Xbox 360 are probably teenagers from about 13- 16. Although these are the most frequent users and buyers of the console, many grown men also buy the console. The Xbox 360 doesnt appeal to most men but some are very keen on it. The users are also nearly always male as not many girls would find the Xbox interesting or even fun to use. Modifications: There are very few modifications that can be made to the Xbox 360. The first modification I would make to the console would be to do with the durability. I would make it so that it would not break with a slight fall. Another modification I would make would be to the heat given off from the console as it gives off an enormous amount. This could be resolved solved by inventing a fan used via a USB port on the back to keep it discreet. Thirdly the weight of the console is colossal weight weighing 3.5 kilograms which makes it highly importable. Safety: The Xbox 360 is extremely safe. It has rounded edges so that it is safe for little children who may hurt themselves. One unsafe feature of the console would be the heat outlet which could burn someone if they put their hand on it or even worse, start a fire if it is left on for too long. Secondly as mentioned before the weight of the console if it were to fall on a small child it would do serious damage or may even kill the child. Ergonomics: The Xbox 360 is designed to stand up straight on a flat surface. It is made to suit this environment. It can also be sat down flat but it takes up a larger surface area. The Xbox 360 controller is shaped perfectly to fit your hands and the headset that comes with it is designed to fit over any shaped or sized head. Also the microphone on the headset comes with an adjustable piee between the ear and the mouth allowing it to be adjusted to reach your mouth. Cost: The Xbox 360 when it first came out about 2 years ago cost around à ¯Ã ¿Ã ½200 for the arcade version, à ¯Ã ¿Ã ½250 for premium version and, à ¯Ã ¿Ã ½320 for the elite version. Since then the prices have come down quite a bit with the current prices at around; à ¯Ã ¿Ã ½130-140, à ¯Ã ¿Ã ½190-200, à ¯Ã ¿Ã ½250-260; depending on where you buy. It is well worth the money and you will get plenty of use out of it. Environment and Location: The Xbox 360 should be held in an open environment away from any water or liquid. It should be located quite high off the ground out of the reach of small children. It should also have room behind it do allow the fan to blow the hot air out without overheating. Size and Weight: The Xbox 360 is not that bid for the amount of components Involved in the making of it. It is around 1 foot tall, about 4 inches thick and around 8 inches wide. It is terribly heavy for a console and very awkward to move. Specifica tions: * Plays all Xbox 360 titles. * Wireless control with rumble * Xbox LIVE * 60GB hard drive * Multimedia compatible * Standard or HD graphics * Free and Premium downloadable game and entertainment content. * Support for DVD-video, DVD-ROM, CD-ROM and MP3 CD * Customizable face plates (picture below) * 3 USB2.0 ports * Support for 4 wireless controllers * Removable 60GB drive * Wi-Fi ready Conclusion: The Xbox 360 looks good and is a nice and attractive shape. It doesnt have the best durability but nothing to worry about. There are very few modifications that could be made to it. It is safe and perfectly designed in every aspect of the console. It is quite large and heavy but is definitely worth the money. Overall in my opinion the Xbox is a great buy for anyone, young or old. Anyone who buys it will have great fun and get plenty of use out of it.
Saturday, October 26, 2019
Facial Recognition Technology for Identification
Facial Recognition Technology for Identification Abstract Facial recognition is a crucial factor of everyday identification processes: human beings recognize and evaluate each other by means of the face. Whenever driving licences, identity and membership cards are checked or wherever access is controlled by security staff, the identity is verified by looking into somebodys face. Thus, unlike other biometric features, e.g. the fingerprint or iris recognition, facial recognition is a transparent procedure well-known to human beings. However, especially in the context of the international fight against terrorism it has become obvious that the traditional way of identifying individuals is insufficient. There are certain limits to the natural recognition process carried out by human beings: The recognition performance is not only impaired by difficulties with the recognition of people from other ethnic origin or deceptions due to a different hair-do or beards, but also by subjective impression based on a persons outward. The requirement of successful personal identification in access control and in other cases leads to using the results of biometrics. Biometrics Face recognition is a passive, non-invasive method for verifying the identity of a person, Offers the benefits of its unique facial technology in the form of customized overall solutions for the areas of access control, border control, ID-Management, search for criminals and video surveillance Face recognition has come to be an active research area with numerous applications in recent years. In this thesis, a variety of approaches for face recognition are reviewed first. These approaches are classified according to basic tasks i-e Face Detect, face Normalization, and Face recognition. Then, an implementation of the face recognition method, the Eigenface recognition approach is presented in detail as well as other face recognitions methods i-e Local Feature Analysis, Neural Networks and Automatic face processing are discussed in general. Introduction Ever since the birth of first mankind, human beings have continually been seeking for personal possessions. From the very basics of food and clothes, to cars, houses, and the more recent substantial property of data and information, it is becoming increasingly important that such valuable assets be sheltered by means of security control. Throughout history, the types of technologies used on the access control systems are countless. From the traditional systems such as security guards checking personal IDs to the very fundamentals of keypads and locks and password or entry code, the focus now has moved to the more advance technologies, particularly in todays multifaceted society. Organisations are continuously seeking for a more secure, suitable and economical way of property protection. The problem associated with traditional mechanisms is that the possessions could be lost, stolen, forgotten, or misplaced. Furthermore, once in control of the identifying possession, any other unauthorised person could abuse the privileges of the authorised user. Therefore there is a need of another approach to properly differentiate the correct (right) person from an impostor by positive identification of the person seeking access. Biometrics is one rising development in the field of access control system that provides true identification. Although the word biometrics sound very new and high tech, it is in fact the oldest form of identification known to man. Since the dawn of man, a persons face and voice was used to identify him/her. Before the digital age, a hand written signature was the only method used by a person to assert a unique form of identification that was difficult to copy. Popular biometric systems in use today include fingerprint recognition, iris recognition, voice recognition, and facial recognition systems. These systems are in practice in different organizations like banks, airports, social services offices, blood banks and other highly sensitive organizations. Biometric system offers the most accurate authentication solution and convenience. Biometrics systems can be integrated into any application that requires security, access control, and identification or verification of people. With biometric security, we can dispense with the key, the password, the PIN code; the access-enabler is human beings not something he/she know, or something in his/her possession. Chapter 02 This part of the dissertation provides the general overview of biometrics. Definitions such as Automatic, Physiological and Behavioural characteristics are also discussed as well as different types of biometric systems i.e. one-to-one and one-to-many. General Biometrics Base systems model, how it works and Multimodal Biometrics systems are also discussed in detail. In the last section of this chapter, a comprehensive overview of the right approach in selection of different technologies for an origination in terms of business objective, user acceptance, FFR, FAR, organisational environments, cost and a comparison of all biometrics are also presented. Chapter 03 Different types of biometric technologies are described in this chapter i.e. finger prints, iris and retina, voice, biometric signature and how these technologies work and the main features of these technologies with the help of diagrams. Chapter 04 This chapter is one of the most important chapters which explain the general back ground of face recognition technology and how face recognition works. It gives a brief discussion of how verification and identification is achieved with the help of face recognition system. Actual techniques involved during face verification and identification i.e. faces detection, face normalisation and face recognition are also discussed in detail. Steps involved during the face detection i.e. coarse detection phase and refined search phase are discussed as well as how Normalisation is achieved through different steps i.e. lighting normalisation, scaling normalisation, rotation normalisation and background subtraction. Face recognition and methods of face recognition i.e. Eigenfaces, feature analysis, neural network and automatic face processing are discussed in this presentation. Chapter 05 In this chapter of my dissertation, a proposed model of face recognition system for attendance of university students is discussed. The specification of the system is also compiled after the extensive study of face recognition products of different Vendors. Chapter 06 This final chapter of my dissertation contains the conclusion, future work and issues involved with face recognition system. A review of the biometrics technology Biometrics: An overview In todays networked and digital world the role of system security has a vital importance. In originations a large number of professional people are involved in one form of electronic transaction or another. Securing a companys digital assets and identities is a necessity for financial success. Ignoring IT security increases the risk of losses for any company moving through this electronic world. Logging on to a system by entering user ID and password is very simple but its simplicity makes serious security problems. There are, however, people who use easy guess passwords or leave written passwords near to their computer. In this situation there is no way to confirm that the person is logged on the system using his/her ID and password or some one else, nothing can prevent someone else from accessing sensitive material. Its like a passport system that doesnt require a photograph. In addition, time consuming tasks behind the management of user ID and passwords divert already insufficient resources from other important responsibilities. Establishing an accurate identity is the main focus of the information systems security in recent years and great efforts are made in this field. Two types of identification systems are in use now today. In one type identification system flawed identity checking results in unnecessary duplication, fraud and client disruption, resulting costs and risks. While in other type of identification system an accurate identification procedure and effectiveness may be undermined by unpopularity resulting falsification and evasion. Chapter2 Three conventional forms of identification are in use. Origination ID or smart cards. The use of passwords or Personal Identification Numbers, mother name, place of birth, home address etc. The third form of identification is to identify something unique about a person, such as fingerprints, voice recognition, hand geometry, face structure, iris and retina. This third form of identification is known as Biometrics. Biometrics is a branch of science in which we study, what makes us biologically unique. It is also referred to the science and application of statistical analysis of biological characteristics (Physiological/ Behavioural). In security terms, Biometrics refers to technologies that analyse human characteristics for security purposes. Therefore Biometrics technologies are concerned with the physical parts of the human or personal trait of human being. There are different definitions of security base biometrics that have been circulating for a numbers of years. According to Ashbourn, an expert in Biometrics, Biometrics is a measurable physiological and / or behavioural trait that can be captured and subsequently compared with another instance at the time of verification). [1] The Biometrics Consortium states Biometrics is automated methods of recognizing a person based on a physiological or behavioural characteristic. [2] The international Biometrics Group defines biometrics as the automated use of physiological or behavioural characteristics to determine or verify identity [3] Physiological characteristics are fingerprint, Hand geometry, iris pattern ,retinal, ear shape and facial scans etc Behavioural characteristics are voice pattern, key strokes, signature etc. As mentioned, biometric technologies are anxious with the physical parts of the human or personal mannerism of human beings. The word automatics basically means that biometrics technology must recognise to identify /verify human characteristics rapidly and automatically, in real time. Unique physiological characteristics or behavioural mannerisms are examined in biometrics verification for an individuals identity. Physiological characteristics are essentially unchangeable such as hand geometry, iris pattern , palm prints, face structure and vane shape etc .while behavioural characteristic such as ones signature, voice or keystroke dynamics are changeable and these behavioural characteristics can change over time. They are both controllable and less controllable actions. The initial sample of the biometrics template, which is stored in the data base during the Enrolment, must be updated each time it is used. Although behaviour characteristics based biometrics is less costly and less intimidating to users, physiological characteristics have a tendency to offer greater accuracy and security. In any case, both techniques grant an extensively higher level of identification and verification as compare to smart cards or passwords technologies. A password or personal identification number (PIN) is not unique for an individual ,it can be stolen ,forgotten or lost, while a biometric characteristic is unique to each individual; it can be used to prevent fraud or theft. It cannot be lost, stolen or forgotten. There already many places such as research laboratories, defence (military) installations, VIP offices, day care centres and cash points where access is guarded by biometrics base authentication system. The following biometric identifiers currently obtainable or under development are fingerprints, body aroma, ear shape, face recognition, keystroke dynamics, palm print, retinal scan, iris pattern, signature, DNA, vein check and voice pattern. Biometrics-based Systems A biometric based system is a system that in some way uses physical characteristics or personal traits of a human being. These systems are not only, mainly used for security, but also use for encryption. Encryption The processes of translating a message (plaintext), with the help of software, into a programmed message/encoded text (Cipher text), called Encryption. This is usually accomplished using a secret key and a cryptographic code. [4] Type of Biometrics-based Systems There are two types of Biometrics-based systems. One-to-one systems (Verification system) One-to-many systems (Identification System) One-to-one system (verification) This type of biometric system works on the base of one to one matching and authentication principles where the system asks and attempts to answer the question Am I who I claim to be? At first a biometric sample of a person is provided to the system and then the system matches this sample to the previously stored template during the enrolment mode for that person. The system then decides whether that is the person who claims the identity. After a successful matching of the fresh sample with the stored template, the system authenticates the person. These types of systems are also referred to as verification systems. The verification system is a fast response system because it minimises the use of resources and time by providing biometrics sample/ information to the system which specifies the stored template in the data base for that person. [5] One-to-many system (identification) This type of biometrics system works on the base of one to many recognition principles. The system attempts to answer the question, Who am I? The basic purpose of this system to identify a persons identity by performing matches against all biometrics templates stored in a data base or a data library. A person does not claim his/her identity to the system; instead the person just gives the system some biometric data. The system then performs to match this data to all templates previously stored in the database and decides whether a match can be made. It is not necessary that the system responds with the persons name, it could be the persons ID or other unique identity. These types of systems are referred to as identification systems [6]. Identification systems have a slow response as compared to verification systems. This is because they require much more powerful resources due to the fact that more comparisons are required by identification systems. The biometrics identification system also prevents a person from registering twice on the system and ensures that a person is not already present in a data base. This type of system can be used in a large scale public benefits organisation, such as being used at banks where a person would try opening a second account on another name. This system can also be used with immigration where a person could try to enter the country on false documents. General Biometrics Base Authentication System Model A general biometrics base authentication system model consists of three major components, hardware, software and interface. Hardware is used to capture the biometrics information and software is used to maintain and manage it while an interface with application system that will use the result to confirm an individuals identity. The system operates in two different modes: Enrolment mode Authentication mode Enrolment mode: In this mode a users biometrics data is provided to a system, which stores this users biometric sample in a database or data library as a template. Hardware such as a biometrics readers/ scanners, cameras are used to capture biometrics sample. This stored template is then labelled with a user identity e.g. name, identification number etc. The way biometrics operate Some biometric base authentication systems may need a number of biometrics samples in order to build a profile of the biometric characteristics. These exclusive characteristics are then extracted and changed in to mathematical code by the system. Which is then stored in to the biometric system as a biometric template for the person who enrolled? The template is store in the memory storage of the system, or in computer database, smart card or barcode. A threshold is set in to the biometrics base authentication system according to the level of security [7], (a high threshold is set for high level of security) To secure the template to the person, a trigger or other mean of securing such as personal identification number, or a smart card that store the template which read by a card reader during the authentication mode, are use in biometrics. In some biometrics system when ever a person interacts with the system a new biometrics sample is provide to the system which is compared to the template. If this new sample and stored template is match (the score of new match if exceed from the set threshold then access is granted to that person). As both physical and behavioural characteristics are inconsistent with time, this change may be due to the age of the person, general health condition, working and environmental conditions and time pressures etc. the biometric base authentication system must allow for these delicate changes, in this case before a match is recorded a threshold *1 is set. This can take the form of an accuracy score *2. The comparison between the template and new sample must exceed this set threshold. If it not exceeds the system will not record the match and will not identify the person. This use of a threshold gives biometric technologies a significant advantage over passwords, PINs and ID badges. The use of a threshold affords a tremendous degree of flexibility and if the comparison between the new biometric sample and the template exceeds the stated threshold, identity will be confirmed. Threshold:-a predefine number, often controlled by system administer, which establish the degree of correlation necessary for a comparison to be deemed a match. Score: A number indicating the degree of similarity or correlation of a biometrics match Capture, extraction, comparison and match/non match are the four stages use by all biometric authentication systems. Capture A physical or behavioural sample is captured by the system during enrolment. Extraction unique data is extracted from the sample and a template is created. Comparison the template is then compared with a new sample. Multimodal Biometric System In some environments a signal biometrics identifier base system such as finger scan, face scan or iris scan etc often not able to meet the desired performance requirement of the organization. Different biometrics base identification system such as face recognition, finger print verification and vice verification, is integrated and worked as a single biometrics base identification system. Multimodal biometrics base identification system is use to over come the limitation of the single identifier biometrics base identification system. Initial experimental results reveal that the identity established by such an integrated system is more reliable than the identity established by a signal biometrics identifier base system. [8] Selecting the Right Approach In Different Environment Different biometrics base authentication systems are used. To choose the right approach to biometrics authentication it is necessary to understand the requirement of the organisation, the application of the biometrics system, and characteristics of the biometrics devices itself. Following factors are also important to choose a biometrics base authentication system, which most devices cant store raw fingerprints and that fingerprints cant be reconstructed based on the data stored within these systems. Intrusiveness is another factor affecting user acceptance of some devices, particularly iris and retinal scanning systems. [9] Business objective of the organisation The most important aspect to consider when selecting a biometrics base authentication system is the organisation business objectives. The choice biometrics system must meet or exceed organisational business objectives as well as sustain organisation in the coming years. Business objective is the bottom line where organisation starts and end. User acceptances Some biometrics, such as fingerprints, may be apparent as an assault of personal privacy. The system must not associate with other govt agencies biometrics (finger print) recognition system that most devices cant store raw fingerprints and that fingerprints cant be reconstructed based on the data stored within these systems. General intrusiveness can be another factor affecting user acceptance of some devices, particularly iris and retinal scanning systems. Following are the errors of biometrics base authentication system. False acceptance rate (FAR) False acceptance rate (FAR) is a system error. It is the rate at which an interloper can be recognized as a valid user. In one -to-one match during user verification, false acceptance is based on fake attempts, not on the total number of attempts by valid users. If FAR is 1%, it means one out of 100 users trying to break into the system will be successful [10]. FARs become more critical when you attempt to identify users based on biometrics, instead of simply trying to verify a person with a one-to-one or one-to-few operation False reject rate (FRR) False reject rate (FRR) is another type of error of biometrics system. It is the rate at which a valid user is rejected from the system. Consider a finger print recognition system; unfortunately, the conditions under which the original sample was collected can never be exactly duplicated when the user submits subsequence biometrics information to be compared. False reject rate may occur due to following variations. Rotation and Translation because of different positioning of the finger on the finger print device. Downward pressure on the surface of the input device which changes the scale of input device. Non-permanent or semi-permanent distortions like skin disease, scars, sweat, etc To over come FRR it is essential that all biometrics base authentication systems have a threshold value in order to allow for minor differences. With out threshold value FRR occurs and valid users will be probably rejected by system. If the threshold value is too high FAR occur [9]. It is there for necessary to find a proper threshold value. Organisational environments As stated it is important to consider the organisational environment when selecting biometrics base authentication system. Users with wet, dirty or dry hand have experienced problems with finger and palm recognition system. People using gloves generally cant use these systems. Face recognition system cant be easily be used in medical environments where hood and masks are used by users. Cost The direct cost of the system (hardware and software) is the initial considerations. Due to the improvement of features and functionality the over all cost of biometrics system reduces. It not only reduces fraud and eliminating problems associated with stolen or forgotten passwords but also reduces the help desk role. Summary The subject of this chapter is biometrics, which is defined as a method of verifying an individuals identity based on measurement of the individuals physical feature(s) or repeatable action(s) where those features and/or actions are both unique to that individual and measurable. A biometrics system which consists of enrolment mode and authentication mode, unique physiological characteristics or behavioural mannerisms are examined in biometrics verification for an individuals identity. All biometric systems essentially operate in a similar way in a four-stage process that is automated and computerized which are Capture, Extraction, Comparison and Match/non-match. Biometrics system one-to-one is based on one to one matching and authentication principles and is mainly used for verification purposes, while biometrics system one to many works on the principles of one-to-many recognition and is used for identification. Multimodal biometrics base identification system is used to over come the limitation of the signal identifier biometrics base identification system in which different biometrics base identification system such as face recognition, finger print verification and vice verification, is integrated and worked as a single biometrics base identification system. Methodologies of Biometrics Authentication An overview As stated, different biometric systems are use in different organisations according to their requirements. The most common biometrics system in use today includes fingerprint recognition, iris recognition, and voice recognition and face recognition systems. There are also other biometric systems available like retina recognition, vein pattern recognition, signature and DNA matching systems. These systems are not as widely used yet for various reasons. These biometrics systems can be integrated into any application that requires security, access control and identification or verification of people. With biometric security we can dispense with the key, the password and the PIN code; the access-enabler is a person, not something person know or something in his /her possession. Biometrics systems secured resources are based on who a person is. Biometrics systems also minimise the risk that is associated with less advanced technologies while at the same time offering a higher level of security and convenience. Fingerprint Recognition System Fingerprints are one of the human physiological characteristics that do not change throughout someones life. Even identical twins have different fingerprint patterns. The chance of identical twins to have the same fingerprint is less than one in a billion. Fingerprint recognition is generally considered the most practical system for its reliability, non-intrusive interfaces, and cost-effectiveness. In recent years, fingerprints have rallied significant support as the biometric technology that will probably be most widely used in the future. In addition to general security and access control applications, fingerprint verifiers are installed at different organisations such as, defence/military organisations health care, banking and finance, application services providers, immigration, law enforcement etc. The fingerprints strength is its acceptance, convenience and reliability. It takes little time and effort for somebody using a fingerprint identification device to have his or her fingerprint scanned. Studies have also found that using fingerprints as an identification source is the least intrusive of all biometric techniques. [15] Verification of fingerprints is also fast and reliable. Users experience fewer errors in matching when they use fingerprints versus many other biometric methods. In addition, a fingerprint identification device can require very little space on a desktop or in a machine. Several companies have produced capture units smaller than a deck of cards. One of the biggest fears of fingerprint technology is the theft of fingerprints. Skeptics point out that latent or residual prints left on the glass of a fingerprint scanner may be copied. However, a good fingerprint identification device only detects live fingers and will not acknowledge fingerprint copies. [12] Main Feature of Finger print verification system Analysis of minutia points i.e. finger image ridge (verification) endings, bifurcations or branches made by ridges. One of the most commercially successful biometric technologies. Important for applications where it is necessary to verify the identity of those who gain access. How fingerprint recognition system works In biometrics systems fingerprint recognition system is the fastest verification /identification (One-to-One / One-to-Many) system as shown in figure 3, 4, 5. Like other biometrics recognition systems it performs fingerprint recognition with the help of specialised hardware. This specialised hardware is supported by the conventional computer hardware and special software. All biometrics systems operate in two modes, enrolment mode and authentication mode (as discussed in the previous chapter). A sample of the fingerprint of a live person is provided to the system which is then converted into mathematical code (Template) and stored for the enrolee into the database. In the first step of the authentication process, a fingerprint impression is provided to the system. The system takes a digital image (input image figure 3:1:1 below) using different techniques including scanner, optical, and ultrasound or semiconductor chip technologies. The digital image of the fingerprint includes several unique features in terms of ridge bifurcations and ridge endings, collectively referred to as minutiae. [22] In the next step the system uses an automatic feature extraction algorithm to locate these features in the fingerprint image, as shown in Figure 3:1:2. Each of these features is commonly represented by its location (x, y, and z) and the ridge direction at that location; however the feature extraction stage may miss some minutiae and may generate spurious minutiae due to sensor noise and other variability in the imaging process. The elasticity of the human skin also affects the feature extraction process. [33] In the final stage, a final decision of match and non match is made on the bases of similarity between the two sets of features after compensating for the rotation, conversion and dimension. This similarity is often expressed as a score. A decision threshold is first selected. If the score is below the threshold, the fingerprints are determined not to match; if the score is above the threshold, a correct match is declared an authentication is granted to the person. Iris and Retina Recognition System Biometrics which analyse the intricate and unique characteristics of the eye can be divided into two different fields, Iris and Retina. Iris and retinal scans both deal with the human eye. They are done in an extremely different way as compared to other biometrics technology. Iris Recogniton System Iris recognition biometrics base authentication systems have unique characteristics and features of the human iris used to verify the identity of an individual. The iris is the area of the eye where the pigmented or colour circle, usually brown or blue, rings the dark pupil of the eye. It consists of over 400 unique distinguishing characteristics that can be quantified and used for an individual identity. However, only about 260 of those characteristics are captured in a live iris identification process [25]. Iris are composed before birth and, except in the event of an injury to the eyeball, remain unchanged throughout an individuals lifetime. Eyeglasses and contact lenses present no problems to the quality of the image and the iris recognition /scan systems test for a live eye by checking for the normal continuous fluctuation in the pupil size. As Iris patterns are extremely complex and unique they carry an astonishing amount of information. The fact that an individuals right and l eft eye are different and that patterns are easy to capture, it establishes iris recognition
Friday, October 25, 2019
An Analysis of Komanuyakaa Facing It Essay -- Komanuyakaa Facing It E
An Analysis of Facing Ità à à Yusef Komanuyakaa's poem "Facing It" is a brutal examination of the affects that war leaves upon men. The reader can assume that Komanuyakaa drew upon his own experiences in Vietnam, thereby making the poem a personal statement. However, the poem is also a universal and real description of the pain that comes about for a soldier when remembering the horror of war. He creates the poem's persona by using flashbacks to the war, thereby informing the reader as to why the speaker is behaving and feeling the way he is. The thirty-one lines that make up "Facing It" journey back and forth between present and past to tell the story of one man's life. The informal language and intimacy of the poem are two techniques the poet uses to convey his message to his audience. He speaks openly and simply, as if he is talking to a close friend. The language is full of slang, two-word sentences, and rambling thoughts; all of which are aspects of conversations between two people who know each other well. The fact that none of the lines ryhme adds to the idea of an ordinary conversation, because most people do not speak in verse. The tone of the poem is rambling and gives the impression that the speaker is thinking and jumping from one thought to the next very quickly. His outside actions of touching the wall and looking at all the names are causing him to react internally. He is remembering the past and is attempting to suppress the emotions that are rising within him. The first two lines of the poem set the mood of fear and gloom which is constant throughout the remainder of the poem. The word choice of "black" to describe the speaker's face can convey several messages (502). The most obvious meaning ... ..." the speaker is telling his audience that the dead soldier was a young man. The tenderness of his age further amplifies the horrific nature of war. The poem's persona and the Vietnam Veterans Memorial Wall depend on each other to express the poem's intention. The poem's intention is to show that war is lethal, less than gloriful, and extremely real. Although years have gone by, these recollections are still affecting how he lives. Simply standing in front of the wall reminds the speaker of all of this. The Veterans Memorial takes on a life of its own. While the speaker is in its presense, the wall controls him. It forces him to remember painful memories and even cry, something he promised himself he would not do. The persona in the poem reacts to the power the wall has and realizes that he must face his past and everything related to it, especially Vietnam. Ã
Wednesday, October 23, 2019
Peer Evaluation
BARS Instructions For Evaluator: ? Circle a score of 1 through 5 in each category based on the team memberââ¬â¢s performance below. ? Average the scores provided by your team members by adding them together and dividing by 4 and place it in the space below. Evaluatorââ¬â¢s Total: 20 Final Grade for BARS: __ Evaluation Ratings Scale Please indicate your views on each individual member by scoring them on the scale provided. We understand that some of the descriptions of the member may coincide with one another; but, from the descriptions listed below, we will put best possible number that best fits the efforts of the member.Contributing To Team Success: Actively participating as a member of a team to move the team toward the completion of goals. 1 = No Effort Given No effort was put into helping the team at all, let others volunteer their time and efforts No effort or ideas given Puts down other members ideas 2 = A Little More Than Nothing Completed one assignment give Gave just enough effort to slide by Gave 1 idea, while shutting down others ideas 3 = Needs Help â⬠¢ Tasks assigned though some completed were usually left for other members to ick up â⬠¢ Ignores team and organizational goals expected of them such as: completing tasks, researching, giving the ideas, and so forth. â⬠¢ Does not give input in meetings; avoids sharing thoughts/input. Says just enough to get in and out as soon as possible. 4 = Meets Expectations Completes fair share of responsibilities by doing just the required amount of work instead of going above and beyond to help others and their tasks. Helps others perform tasks and reach goals only if it doesnââ¬â¢t inconvenience them.Subordinates own personal goals for the good of the team. 5 = High Performing Always comes ready with ideas and the initiative to get the job done for the group. Helps other achieve without expectation of recognition and does the work at hand without waiting on others to ask for help. Assists fe llow team members and takes on added responsibility without being asked. Communication: Clearly conveying and receiving information and ideas through a variety of outlets to group members. 1 = No Effort GivenDid not come prepared for discussions, never gave ideas, just sat there and gave no effort No participation in class was reached, whether in sending in question or answering them for the class assignments Did not inform members of their absence or being late to class 2 = A Little More Than Nothing Responded to at least 2 to 3 emails, text, or other forms of communication but was always late Gave at least 2 ideas during the entire courseââ¬â¢s group meetings and gave at least two discussions points for projects Informed only one member of their absence or tardiness at least once. 3 = Needs ImprovementResponded to at least half of all emails, text, or other forms of communication but was usually late Gave 3 ideas during the entire courseââ¬â¢s group meetings and at gave at l east 4 discussion points for projects. Informed all members of their absence or tardiness at least once 4 = Meets Expectations Responded to a majority of the emails, text, or other forms of communication in a descent time manner. Effort was put forth in communicating ideas for group meetings, gave at least 4 ideas during the entire courseââ¬â¢s group meetings, and gave at least 4 discussions points for projects.Informed all members of their absence and tardiness 5 = High Performing Responded to every email, text, or other form of communication on time. Came prepared for every group discussion, gave others their chance to speak, gave at least 6 ideas during the entire courseââ¬â¢s group meetings, and gave at least 6 discussion points as well. Informed all members of their absence and tardiness. Initiating Action: Taking prompt action to accomplish team assignments; taking action to achieve goals beyond what is required; being proactive. 1 = No Effort GivenNo action or effort in achieving a goal as a group was met. Always waited for others to step up and volunteer for work. If a project was given to them another member had to come behind and clean up their work or do the work 2 = A Little More Than Nothing Accomplished one task given to them Waits for others to tell he or she what to do All work given was appeared to be done right before class with minimal effort in citing, grammar, spelling, and so forth. 3 = Needs Improvement Does not take appropriate action to accomplish tasks.Completes 7 out of 10 assignments. Is not proactive; but reactive; avoids work. Fails to follow through on projects/processes. Always waits for others to review his or her work. 4 = Meets Expectations Takes appropriate action to accomplish tasks. Completes 9 out of 10 assignments Takes action when appropriate; does not wait for others to take action. This member is more of a pusher for the group instead of one that has to be pulled. Always completes projects in a timely manner to complete objectives and achieve goals for the team 5 = High PerformingAction is taken to achieve goals ahead of schedule; anxious to complete high-quality, professional work in a timely manner. Anticipates setting new goals as experience and knowledge increases. Encourages others to do their part in performing and helping the group achieve their goal of getting an A. Managing Work: Effectively managing oneââ¬â¢s time and resources to ensure that work is completed efficiently; makes timely notice of not being in class/meeting or tardiness. 1 = No Effort Given Work was never turned in Never completed his or her own work but left it for other to do Without other group members they would be lost. = A Little More than Nothing Work came in late every time, that is if it made it Would complete half of the work given to him or her but another member would have to come behind their work and clean it up or redo the work for it to be expectable. Highly dependable on others. 3 = Needs Improv ement Work is not completed in a timely manner or completed Completed all the work given to them but other members had to help polish the work before it could be turned Depended on others after their share of work was completed in order to reach a polished project = Meets Expectations â⬠¢ Work completed in a timely manner â⬠¢ Completed all work given on time and without the need of others help â⬠¢ Only depended on other members when other members were required to help complete the project. 5 = High Performing Work is always completed on time or ahead of schedule and needs no help from others, unless required Encourages others to do their part in performing and helping the group achieve their goal of getting an A.Only depended on other member when other members were required to help complete the project We understand the course credit is earned at each meeting. Meetings and preparation may be changed with majority agreement ââ¬â if the change is possible for all parti es. Report changes to the instructor. Signed and Dated Team Members 1. _______________________________________ 2. _________________________________________ 3. ________________________________________ 4. __________________________________________
Tuesday, October 22, 2019
Quaid Essays
Quaid Essays Quaid Essay Quaid Essay I choose him as my hero because I really admire him. I admire his style, his personality and what he did for the Muslims of our country. He gave Muslims their freedom from the British Empire that was ruling at that time. Quaid-e-Azam Mohammad Ali Jinnah was born on Dec. 25th, 1876, to a prominent mercantile family in Karachi. He was educated at the Sindh Madrassat-ul-Islam and the Christian Mission School.Jinnah joined the Lincolns Inn in 1893 to become the youngest Indian to be called to the Bar. Three years later, he became Bombays most famous lawyer. He formally entered politics in 1905 from the platform of the Indian National Congress. He went to England in that year as a member of a congress delegation to plead the cause of Indian self-governemnt during the British elections. He got us, the Muslims, freedom by forming a political group called the Muslim League.When he talked to all the Muslims around in the sub-continent at that time, he said, We are a na tion with our own distinctive culture and civilization, language and literature, art and architecture, names and nomenclature, sense of values and proportion, legal laws and moral code, customs and calandar, history and tradition, aptitudes and ambitions; in short, we have our own distinctive outlook on life and of life. By all canons of international law, we are a nation. [pic] The Muslim league had a great impact on the nature of the Indian politics. By making the Muslim League, it shattered forever Hindu dreams of a pseudo-India.The British and the Indians were shocked at how all the Muslims came up together, asking for them to give them their own free country, which is now Pakistan. To get the Muslim people freedom, Quaid-e-Azam Mohammad Ali Jinnah played a big role. He was the only Muslim to stand up and rally all the Muslims together so they could have their freedom on Aug. 14, 1947. Before dying on Sept. 11th, 1948, he gave the Pakistanis a last message: The foundations of y our state have been laid and it is now for you to build and build as quickly and as well as you can. Most people also admired him and one even said, Gandhi died by the hands of an assassin; Jinnah died by his devotion to Pakistan. Thats why I really admire him. He is like a hero to everyone in my country. This is because of what he did for our country and for the Muslims. He fought so much for us and he did so much for us that no one can ever forget. You always hear about Gandhi and how he did so much for India, but you never hear about Quaid-e-Azam who did everything to get us at the point that we are right now. He is a great freedom hero for me.
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