Analysis Of Ready Player One By Ernst Cline - 1340 Words

Ready Player One, by Ernst Cline – Extended text, novel Ready Player One, written by Ernst Cline, is a novel that explores a dystopian future where overpopulation and overconsumption of resources has caused a huge decrease in the general quality of life. Many peoples only escape from the harsh reality of the world is a virtual reality simulation known as the OASIS. Players can create their own avatars and explore a seemingly endless virtual world, all of which is online with other players. This software allows interaction between everyone connected, and has become the mainstream form of media in this bleak future. The creator of this software, James Halliday, dies at the beginning of the novel, and leaves his fortunes hidden in the OASIS.†¦show more content†¦This is done in order to save space, and is a great example of Cline displaying the dystopia of the world displayed in the book in an indirect manner. While people generally view the future as some utopic society where flying cars are the common means of transport, we hardly picture a reality where water levels are rising and overpopulation is reaching an unstable level, where the disparity between the rich and the poor becomes even clearer. This helps me to have the realization that many people are unaware of the detrimental effects of things that we consider â€Å"normal† on our earth. For example, billions of people use vehicles which are energy inefficient, and release toxic carbon emissions into the atmosphere. The fear that I feel when reading about such a bleak future, helped me to realize that to survive we must change as a society. This is relevant to our current society because global warming and over-population are currently very real issues that have no foreseeable solution other than a population that produces less waste, and is generally more sustainable. The underlying theme of Ready Player One is the power of technology. My response to this theme is excitement. In the text, technology gives people the power to assume another identity in a completely different reality. The technology described in the text, closely mirrors the ambitions of the virtual reality products currently on the market. This excites me, as it leads me to believe that we are veryShow MoreRelatedMr Zhang42340 Words   |  170 Pages- To provide a means for improving the writing skills of students. From all reports, accounting majors too often leave college lacking in the basic ability to compose and construct sentences and paragraphs. Accounting and auditing (especially as one moves up in an organization) obviously require skills other than the purely quantitative. Memos, reports, footnotes, audit and accounting guides, etc., all require accountants and auditors to be effective communicators of the written word. Indeed

Engineering Education in Ghana Free Essays

string(120) " is besides really important to forestall high traffic countries in schoolroom designs, such as waste basket countries\." 2.2.4 Education Education serves as an engine for economic growing through the accretion of human capital. We will write a custom essay sample on Engineering Education in Ghana or any similar topic only for you Order Now Education is strongly associated with boosting degrees of societal capital ( Campbell, 2006 ) . the act or procedure of leaving or geting general cognition, developing the powers of concluding and judgement, and by and large of fixing oneself or others intellectually for mature life ( Dictionary.com, 2014 ) . 2.2.5 ENGINEERING Education Engineering instruction is the activity of learning cognition and rules related to the professional pattern of technology. It includes the initial instruction for going an applied scientist and any advanced instruction and specialisations that follow. Engineering instruction is typically accompanied by extra scrutinies and supervised preparation as the demands for a professional technology licence. 2.3 Technology Education IN GHANA OVER THE YEARS Engineering instruction in the so Gold Coast dates back to the 1930’s. In August 1931, the Colonial Government requested Achimota College in Accra to form an technology class to develop Africans for senior assignments in the Public Works Department, the railroads and subsequently, the mines. The class, which was based on the external grade course of study of the University of London, consisted of four and a half old ages of survey at Achimota, followed by between three and four old ages of structured post-graduation practical preparation. Initially, the class offered at Achimota led to grades in electrical, mechanical and civil technology, but with the enlargement of activities in the excavation sector in the Gold Coast, it became necessary for the School to spread out its class offerings to include excavation technology. In malice of the troubles it experienced, the Achimota Engineering School managed to turn out a sum of 25 applied scientists before the start of the Second W orld War compelled it to close down. These applied scientists were to play cardinal functions in the immediate post-independence development of Ghana and besides served in other African states every bit good as working for international bureaus. With the constitution of the University College of the Gold Coast in Legon, Accra in 1948, university instruction was phased out of the Achimota College campus. Unfortunately, no proviso was made for the transportation of the technology classs to the new University College, therefore the preparation of applied scientists was interrupted between 1948 and 1952 when a School of Engineering was once more established as portion of the new Kumasi College of Technology and the equipment, and some staff of the Achimota Engineering School transferred to Kumasi to organize the karyon of the new school. From 1952 to 1955, the School of Engineering prepared its pupils for rank of the assorted Professional Institutions in the United Kingdom. The formal p reparation of alumnus applied scientists of assorted specialisations commenced in 1955 in particular relationship with the University of London and pupils were prepared to take Partss I, II and III of the University of London Bachelor of Science ( Engineering ) External grade scrutinies. The first professional applied scientists produced by the Kumasi School of Engineering, who were all civil applied scientists, graduated with the university of London External B.Sc. ( Eng. ) grade in June 1959. The School of Engineering began to present its ain technology grades in June 1964. 2.3.1 Technology Education FOR NATIONAL DEVELOPMENT Relevance of technology plans to the demands of industry has sometimes been interpreted as a state of affairs in which the merchandises of an technology plan are to be trained to be of immediate usage to industry after small or no post-graduation preparation. Pressures, hence, be given to be put on African technology modules to cut down on the content of the theoretical facets of their classs in favour of vocational facets – force per unit areas which are, in bend, frequently ferociously resisted by technology pedagogues. Yet, technology plans in African Universities stand to derive enormously when there is active co-operation between technology pedagogues and the chief consumers of technology work force based on common regard and clear grasp of the functions of the assorted stakeholders. It is besides anticipated that the technological spread between the developed and the underdeveloped universe will go even wider in the twenty-first Century, therefore, doing technology prepa ration even more situation-specific. This will intend that Ghana will hold to depend even more on her national establishments for the preparation of the technology work force relevant to their development demands. It will, hence, be necessary for the professional associations and the preparation establishments in Africa to co-operate even more closely in specifying the content of the technology course of study of the twenty-first Century. 2.4 DESIGNING AN ENGINEERING SCHOOL 2.4.1CONDUSIVE TEACHING Environment To forestall the assorted jobs pupils and lectors face in the schoolroom, it is of import to set into consideration the agreement of the schoolroom. Savage 2009 indicates that, the physical agreement of schoolrooms plays a prima function in the character defining of pupils and goes a long manner in bettering the academic public presentation of pupils. If a schoolroom is non good designed, it affects the end product of pupils, hence hindering on the intent for which talks are intended. The research on schoolroom environments suggests that schoolrooms should be organized to suit a assortment of activities throughout the twenty-four hours and to run into the teacher’s instructional ends ( Savage, 1999 ; Weinstein, 1992 ) . The criterions for finding what spacial lay-out is most appropriate to carry through these maps include: ways to maximise the teacher’s ability to see and be seen by all his or her pupils ; ease easiness of motion throughout the schoolroom ; minimize dis tractions so that pupils are best able to actively prosecute in faculty members ; supply each pupil and the instructor with his or her ain personal infinite ; and guaranting that each pupil can see presentations and stuffs posted in the schoolroom. Seating agreement in talk halls are really important since it indicates whether there will be societal exchanges in the category is task behaviorally delighting. It is besides really important to forestall high traffic countries in schoolroom designs, such as waste basket countries. You read "Engineering Education in Ghana" in category "Essay examples" Critically, it is really of import that, pupils have a clear position of the lector at every point in clip ( Quin et al. , 2000 ) . In making so, the lector should besides be giving freedom in his motion through the talk room or schoolroom. There is some grounds that it is utile to restrict ocular and audile stimulation that may deflect pupils with attending and behaviour jobs ( Bettenhause n, 1998 ; Cummings, Quinn et al. , 2000 ) . The physical agreement of the schoolroom can function as a powerful setting event for supplying pupils effectual direction and facilitate ( or inhibit ) positive instruction or learning interactions. As with other facets of direction, the physical agreement of the schoolroom should be brooding of the diverse cultural and lingual features of the pupils and be consistent with specific scholar demands. 2.4.2 STAIRWAYS Stairwaies are seen as connections between at least two different degrees. Vertical risers and horizontal paces are connected to stairss over a incline. It can besides be defined as a system of stairss by which people and objects may go through from one degree of a edifice to another. One of the most critical parts of school traffic design is the staircase, which should be located in relation to the inclusive traffic form, maintaining in head burden distribution, safety, finish of pupils between periods and riddance of cross traffic. The staircases should be designed for unsophisticated, fast, and safe motion of male childs and misss. Stairways non merely supply entree to and from assorted floor degrees, but they are used at every period for the perpendicular circulation of pupils altering categories. It is of import that staircases should be designed to guarantee that male childs and misss with books under their weaponries may walk side by side to avoid congestion ; a breadth of 4 p ess 8 inches to 5 pess between bannisters is recommended. Stairwaies should be of fireproof building, taking straight to the out-of-doorss. They should be equipped with smoke-control installations, dividing the stairwells from the corridors which they serve. 2.4.3 Corridor A well-designed school has corridors that accommodate the free and informal motion of pupils. The narrow corridor normally requires formal, regimented, and supervised traffic flow. The walls of corridors should be free of all projections. Heat units, imbibing fountains, fire asphyxiators, cabinets, doors, and show instances should be recessed in the involvement of pupil safety. Acoustic belongingss are desirable to cut down hall noise. Corridors should be good lighted, with exigency proviso in the event of chief power failure. Floor covering should be lasting, nonskid, and easy to keep. The maximal length of unbroken corridors should non transcend 150 pess to 200 pess longer subdivisions give an unwanted position. 2.5 FORMAL SPACES 2.5.1 CLASSROOMS Classrooms have comparatively straightforward demands: line of sight, good acoustics, and a focal point at the forepart of the room helping as the platform for instructors to talk. Physical restraints such as the ability of pupils to turn around in their seats, can restrict the success of a designed schoolroom infinite. The room may be designed for pupil coaction. Seatings may be arranged in mated rows with specially design chairs that allow pupils to confront each other for coaction. Apart from the schoolroom and formal infinites, educational establishments are besides designed with the proviso of informal infinites in head. 2.5.2 Offices The finding of whether an office or cell will be assigned is based on an person ‘s occupation description and place within the organisation. Factors such as confidentiality or security demands, figure of employees supervised and particular equipment demands will be evaluated. Offices should be placed near the inside nucleus infinite. This increases the incursion of natural visible radiation into the edifice. When it is impractical to turn up offices near the inside nucleus, door running lights and borrowed visible radiations should be considered to convey daytime into the interior infinites. Translucent glazing such as frosted or patterned glass can be used if there is a ocular privateness demand. Offices located in the inside of the edifice infinite should be provided with a door or running light assembly or a borrowed visible radiation ( interior window ) in at least one wall at a tallness above the finished floor that allows ocular privateness while conveying visible radiati on from the exterior. 2.6 REQUIREMENTS OF LECTURE HALL SPACES ( The followers demands of a schoolroom design have been taken from the â€Å"University of Maryland, Baltimore County General Lecture Hall Design Guidelines, and Revised August 25, 2000 ) . Physical Access and Movement – The design shall take into history the flow of pupils both in and out of the infinite and within the infinite every bit good as the demand for the teacher to travel about in the forepart of the room. 1. Sufficient infinite is needed near the forepart of the room for puting up audiovisual equipment, such as projection screens and charts. 2. Ceilings should be a upper limit of 9.5 pess high. 3. Light from Windowss should, if possible, come over a student ‘s left shoulder. No lector should be required to confront the Windowss when turn toing the category from the normal teaching place. 4. Ceilings and/or walls should be acoustically treated. 5. Floors should hold a cushioning stuff. 6. The schoolroom should hold as quiet a location as possible, off from noisy out-of-door countries. Ease of entree to specialise installations outside the academic unit should be ensured. 2.6.1 DOORS The flow of pupils should be the major factor in finding the location of entrywaies. Entrances should be located to avoid pupil traffic go throughing through non-instructional countries. In add-on, big Numberss of pupils going in corridors and hallways can bring forth unwanted noise. In finding the size of entrywaies and issues, constructing codifications should non be the lone standard. The flow of pupils in and out of suites can hold a major impact on size of entrywaies and issues. The design of entrywaies, issues, stepss, corridors, and exterior waies should take into history between-class pupil traffic. For illustration, it is non realistic to presume that a room will be wholly vacant when pupils begin geting for the following category. Provision should hence be made for vision panels in entryway doors. They could be tinted. Besides, proviso should be made for door Michigans to protect the wall surface. 2.6.2 FLOOR, WALLS AND CEILINGS In smaller schoolrooms, it is common to utilize vinyl composing tile or rug. Rug should be provided in all suites unless subject particular related classs dictate otherwise. The ceiling tallness is another of import consideration when planing the infinite. For illustration, because a projection screen must be big plenty to expose images of equal size, it must be placed high plenty from the floor to supply unobstructed sight lines. This normally requires a ceiling tallness higher than the standard eight pess. 2.6.3 NOISE CONTROL Other of import factors must be considered in the design. To avoid the noise generated by their operation and usage, peddling machines must be located as far off as possible. Trash and recycling containers should be located near the peddling machines. Restrooms and imbibing fountains should be located nearby and should be designed to manage pupil usage between categories. To forestall unwanted noise transmittal, public toilets should non portion common walls, floors, or ceilings with instructional infinites How to cite Engineering Education in Ghana, Essay examples

Syphilis Essays - Syphilis, Medicine, Clinical Medicine, Health

Syphilis Syphilis is a sexually transmitted disease caused by the spiral bacteria called Treponema pallidum. Syphilis consists of three main stages, primary stage, secondary stage, and latent stage. The latent stage may lead to a final stage called the tertiary stage. There are many cures to syphilis, and it is virtually eliminated from today's society. There are a few ways to contract the disease, all of which can be prevented. The primary stage of syphilis is characterized by a small lesion, called a chancre, which resembles a pimple, blister or open sore. This occurs anytime between nine days and three months after infection. Fluid from the chancre is extremely infectious, but usually painless. Normally it appears on the genitals or near where the bacteria entered the body. It often hides and many people never realize that it is there. On women, the sore can be found hidden in the vagina or the folds of the labia. On men, it usually hides in the folds of the foreskin, under the scrotum, or near the base of the penis. Men more often than women will also have swollen lymph nodes in the groin. At this stage, the chancre is very infectious. It will heal with or without treatment, but the bacteria will remain and begin to spread if untreated. In the secondary stage, occurring about six weeks later, a generalized rash appears. It can last for weeks or months, perhaps up to a year. Painless ulcers develop in the mouth. Most people discover raised areas around the genitals or anus. The bacteria can be easily spread through mucous patches on the raised areas, which are called condylomalata. Flu-like symptoms start to occur, and can come and go for years. These symptoms may include a rash (over entire body or just on palms of hands and soles of feet), a sore in the mouth, swollen and painful joints, aching bones, and a mild fever or headache. These symptoms usually disappear in 3 to 12 weeks. Some people even experience hair loss during the secondary stage of syphilis. The disease then enters a latent stage in which no outward signs or symptoms occur, however, the bacteria are active inside your body, multiplying and attacking internal organs. The latent stage can last from 20 to 30 years. When second stage symptoms completely disappear, the disease is no longer infectious. At this point, the "rule of thirds" comes into play. Among the total number of latent syphilis cases, one-third will go away on their own, one-third will stabilize, and one-third of the cases will evolve to the next and last stage. When the final stage, tertiary syphilis, does occur, it could be fatal. It may produce hard nodules, called gummas, in the tissues under the skin, the mucous membranes, and the internal organs. The bones are also affected, as well as the liver, kidney, and other visceral organs. Infection of the heart and major blood vessels accounts for most of the syphilis related deaths. A special kind of syphilis, which occurs in nearly 15 percent of the tertiary cases, is called neurosyphilis. It causes lack of muscular coordination, loss of urinary control, and degeneration of the reflexes. It also may cause pregnancy problems, including miscarriage, stillbirth, or to the birth of a child with congenital syphilis. Infected children often have typical signs, such as high forehead, saddlenose, and peg-shaped teeth. Syphilis can be diagnosed and treated with relative ease. Because of this, the past twenty-five years or so have seen a marked decline in the number of tertiary stage cases of syphilis and of deaths due to the disease. Syphilis is mostly treated by an injection of penicillin, or by a two-week regimen of tetracycline. Two follow-up blood tests two weeks apart from the initial test and two weeks apart from each other are needed to ensure the treatment was effective. The first three stages of syphilis are completely curable, and even in the last stage syphilis can be stopped. With the present medical technology to diagnose and treat syphilis, there is no excuse for anyone in the U.S. to suffer the last stage of syphilis. Alternatives to penicillin are necessary because many people are allergic to penicillin and in some people it is not effective in treating syphilis. Early detection of syphilis disables the disease completely. In pregnant women, early detection of the infection can reduce the chances of the fetus becoming infected. Syphilis is sexually a transmitted disease, and is usually transmitted by sexual contact or kissing. The way it infects is from

The Greek God Poseidon, Lord of the Sea, Neptune

The Greek God Poseidon, Lord of the Sea, Neptune The mighty Earthshaker, Poseidon ruled the waves that the ancient seafaring Greeks depended upon. Fisherman and sea captains swore fealty to him and avoided his wrath; the sea gods persecution of the hero Odysseus was well known, and few wished to wander so far and so long before finding their home port. In addition to his influence over the seas, Poseidon was responsible for earthquakes, striking the ground with his trident, a three-pronged spear, to awesomely devastating effect. Birth of Poseidon Poseidon was the son of the titan Cronos and brother to the Olympian gods Zeus and Hades. Cronos, fearful of a son who would overthrow him as he vanquished his own father Ouranos, swallowed each of his children as they were born. Like his brother Hades, he grew up inside the bowels of Cronos, until the day when Zeus tricked the titan into vomiting up his siblings. Emerging victorious after the ensuing battle, Poseidon, Zeus and Hades drew lots to divide up the world they had gained. Poseidon won dominion over the waters and all its creatures. Alternate Greek myths suggest that Poseidons mother, Rhea, transformed him into a stallion to stymie Cronos appetite. It was in the form of a stallion that Poseidon pursued Demeter, and fathered a foal, the horse Areion. Poseidon and the Horse Oddly for the god of the sea, Poseidon is deeply associated with horses. He created the first horse, introduced riding and chariot racing to mankind, and rides above the waves in a chariot drawn by horses with golden hooves. In addition, some of his many children are horses: the immortal Areion and the winged horse Pegasus, which was the son of Poseidon and the gorgon Medusa. Myths of Poseidon The brother of Zeus and Greek god of the sea figures in many myths. Perhaps the most notable are those related by Homer in the Iliad and Odyssey, where Poseidon emerges as a foe of the Trojans, champion of the Greeks and dire enemy of the hero Odysseus. The Greek gods antipathy toward the wily Odysseus stems is kindled by the mortal wound that the hero deals to Polyphemus the Cyclops, a son of Poseidon. Again and again, the sea god conjures winds that keep Odysseus away from his home in Ithaca. A second notable story involves the contest between Athena and Poseidon for the patronage of Athens. The goddess of wisdom made a more compelling case to the Athenians, giving them the gift of the olive tree while Poseidon created the horse. Finally, Poseidon figures prominently in the story of the Minotaur. Poseidon gave to King Minos of Crete a fantastic bull, intended for sacrifice. The king couldnt part with the beast, and in anger, Poseidon caused the princess Pasiphae to fall in love with the bull, and to birth the legendary half-bull, half-man called the Minotaur. Poseidon Fact File Occupation: God of the Sea Attributes of Poseidon: The symbol for which Poseidon is best known is the trident. Poseidon is often shown alongside his wife Amphitrite in a sea chariot drawn by sea creatures. The Inferiority of Poseidon:Poseidon asserts equality with Zeus in the Iliad, but then defers to Zeus as king. By some accounts Poseidon is older than Zeus and the one sibling Zeus didnt have to rescue from his father (the power leverage Zeus usually used with his siblings). Even with Odysseus, who had ruined his son Polyphemus life, Poseidon behaved in a less fearsome manner than might be expected of an enraged Sturm und Drang kind of god. In the challenge for patronage of the polis of Athens, Poseidon lost to his niece Athena, but then worked cooperatively with her as in the Trojan War where they try to thwart Zeus with Heras help. Poseidon and Zeus:Poseidon may have had an equal claim to the title of King of the Gods, but Zeus is the one who took it. When the Titans made the thunderbolt for Zeus, they made the trident for Poseidon.

Shakespeares Ultimate Valentines Day Poem

Shakespeares Ultimate Valentines Day Poem Are you looking for the most romantic Valentine’s Day poem ever? Then look no further than Shakespeare’s greatest, most heart-tingling sonnet. It’s perfect for a Valentine’s Day poem! We are of course talking about Sonnet 18: Shall I Compare Thee to a Summer’s Day? ... considered by many to be the greatest love poem ever written. Sonnet 18: The Ultimate Valentines Day Poem The sonnet’s reputation is well deserved because of Shakespeare’s ability to capture the essence of love so cleanly and succinctly in only 14 lines. He compares his lover to a beautiful summer’s day and realizes that while summer days may fade and fall into Autumn, his love is eternal. It will last all year round – year in, year out – hence the famous opening lines of the poem: Shall I compare thee to a summers day? Thou art more lovely and more temperate: Rough winds do shake the darling buds of May, And summers lease hath all too short a date: (...) But thy eternal summer shall not fade. Why not copy out the full text from the link below and leave it under a loved one’s pillow this Valentine’s Day? Here are the only two links you need this Valentine’s Day: Sonnet 18 - Read the full textSonnet 18 – A study guide to help you better understand the poem If you are looking for something shorter, then our list of the top 10 Shakespeare love quotes will surely set your heart aflutter.

Reflections on Federal Welfare Policy - Week 3 - Journal Coursework

Reflections on Federal Welfare Policy - Week 3 - Journal - Coursework Example The federal government further governs the unemployment insurance, a program that provides unemployed individuals with a source of income for about 26 weeks. I believe the policies are effective in eradicating poverty thereby creating a desirable society for every American. Labor relations remain contentious issues with the country lacking a holistic federal policy to govern the compensation of workers. The unpredictable labor relations are likely to affect my social welfare when should I migrate from one state to another. Despite such, I believe that the governments are doing their best in providing the populace with a better living condition. Such policies as the No child left behind act and the Obama care have for example succeeded in reducing the costs of education and health care, two of the most important yet equally costly social requirements. This way, the public enjoys lower costs of living (Meier & Wood, 2004). Furthermore, the social security act safeguards the future of Americans after retirement thereby ensuring that every citizen enjoys a comfortable life. This week’s readings have exposed me to a number of policies thus reinforcing my belief that the government is doing enough to safeguard the social security of the

Live Scan Term Paper Example | Topics and Well Written Essays - 1000 words

Live Scan - Term Paper Example These services are generally required by the police department to keep records and track criminals. This service has also been used in airports throughout to quickly get the details of passengers and immigrants. This service is however also utilized by universities and other departments for checking employee records before employments. This information to these departments is usually available through Department of Justice (DOJ). Live scan uses the advanced digital photography methods to capture the images of fingerprints. For this the person needs to press his or her fingers on a screen or scanner. The image is scanned, captured and stored in electronic form on computer databases. Thus the whole process is somewhat similar to the scanning of documents in a scanner and storing the captured images on the computer in the form of a file. Scanning fingerprints however needs some special type of scanners. As these scans are stored in computers, it becomes easy to analyze the fingerprints without much hassle. These can be then shared with any departments around the world as it is easy to send the files through computer networks. "Live scan instruments must be able to collect fingerprints from a wide cross section of people-including those with very fine, worn, scarred or cracked fingerprint ridges and varying degrees of skin moisture content." (Cross Match Technologies, 2007). Most of the instruments provide scans for well ridged fingerprints giving very low quality scans for people with dry skin and other problems. This makes it very difficult to identify such fingerprints. Younger people are well suited for live scan fingerprints as they generally have healthy skin with no such problems to hinder the fingerprinting process. For people with too dry or too moist skin there is a problem in capturing the scans. For this purpose silicone membranes have been developed which are in the form of transparent sheets. These sheets are kept on the screen of the instrument and fingers are pressed against the sheet. This membrane helps in enhancing ridges of the fingers thereby providing well defined scans for people wi th varied moisture content in their skin. There is another problem faced by these instruments and that is of very high volume scans due to which the fingerprints often get mixed up. This problem is also addressed by these silicone membranes. The membranes last for very long and when they need replacement it is very easy to peel them off and place a new one without taking any time. Other advantages include the protection of the capturing screen of the instrument as the membrane is placed on it. Another it is very easy to clean the membrane once it gets dirty. There is no need of application of any liquid or special cloth to clean it. It is done simply by placing a tape on it so that the dirt or any oils, etc. stick to it and get away making the membrane ready to be used again. Although most of the instruments use optical scanning technique in live scan systems, there have been recent developments in this field prompting the use of ultrasonic technique for the same. The fingerprints using ultrasonic systems have been seen to be of better quality than the optical ones. The ultrasonic technique again addresses the same problems of varied moisture c