Oscilloscope and Polymeter an Example by

Oscilloscope and Polymeter Because of technological advancements, signal voltages can now be seen. Through an electronic test instrument, this has become possible. This instrument shows a 2-D graph with electrical differences and is called oscilloscope. Vertical axis represents possible electrical differences. On the other hand, the horizontal axis stands for another voltage, or time (Tomal and Widmer, 1993, p. 119). Need essay sample on "Oscilloscope and Polymeter" topic? We will write a custom essay sample specifically for you Proceed While it is true that vertical axis shows the volate through an oscilloscope, other values can also be seen through this tool, like any quantity which can possible be changed into a voltage. Most of the time, an oscilloscope displays events that change at a slow pace, or repeat without a single change. Out of all the electronic instruments out on the market these days, oscilloscope proves to be the most widely-used and the most versatile tool among others (Tomal and Widmer, 1993, p. 119). If an individuals needs to see the exact wave shape of a particular electrical signal, then an oscilloscope is the perfect tool to make this possible. Aside from the electrical signal's amplitude, this instrument can also measure frequency and display distortion. It can also display the timing of two signals that are related to each other. An oscilloscope can also show the time taking place between two events. An example of these events include pulse rise or pulse width (Tomal and Widmer, 1993, p. 1 19). People Frequently Tell EssayLab professionals:How much do I have to pay someone to make my assignment in time?Essay writers propose: Get Your Essay Before The DeadlineEssay Helper Students Cheap Custom Writing Service College Paper Writing Service Reviews Buy Papers Online An individual who uses the digital version of this instrument will enjoy the analysis and display the tool can do. The digital version can do both of these to the spectrum of an event the repeatedly happens. Another type of an oscilloscope is the special-purpose type, which is also known as a spectrum analyzer. This type of oscilloscope has inputs which are highly sensitive, and can show spectra into the gigahertz range. Some oscilloscopes can also show spectra in audio range, and at the same time can also accept plug-ins (Tomal and Widmer, 1993, p. 119). The term oscilloscope may be strange to others, especially those who are not well-versed with the terms of medicine, telecommunications and engineering. This tool is widely used in the field of science, especially in industries, telecommunications, engineering and medicine. Some oscilloscopes are general-purpose oscilloscopes, which can be used to maintain laboratory work and electronic equipment. Those with special purpose can be used to display a heartbeat's wave form. It can also analyze a specific automotive ignition system (Scherz, 2000, p. 441). In the beginning, the oscilloscope was operated by cathode ray tubes. The ray tubes function as the oscilloscope's display element. Originally, the oscilloscope's ability to process signals was made possible with the help of linear amplifiers. Today, oscilloscopes can now be easier to use because of LED and LCD screens. This tool has become a more convenient instrument for its users because it now has fast converters (from analog to digital). Modern oscilloscopes can now be used with digital signal processors (Scherz, 2000, p. 441). Basically, what one will see through an oscilloscope is a level of a signal. This signal depends on the changes in time. Voltmeters can do the same. Steady levels are measured with the use of a voltmeter. Steady levels include the use of checking the batteries of a flashlight, or test tones. However, when it comes to measuring the instantaneous value of a signal, then a voltmeter cannot do that. A voltmeter is also not capable of identifying a sine or a square wave, which an oscilloscope can do (Scherz, 2000, p. 441). An electron beam is an important component of an oscilloscope because this is what the tool makes use of to make dots of light just when the phosphor coating, which can be seen inside a CRT or a cathode ray tube, is struck by the beam. What happens to the beam is that is gets swept from one side of the screen to another in a very rapid manner. The speed is enough to see clearly the input waveform's variations (Scherz, 2000, p. 441). Aside from the CRT, it can be seen that all oscilloscopes have amplifiers, both horizontal and vertical. Connected to the horizontal amplifier is a frequency sawtooth oscillator. The oscillator is present to make recurrent sweep which is the one responsible in tracking down the input signal. Because the CRT creates just one dot to represent light, the tool works only when the dot is constantly sent across the screen from left to right, specifically, to make it appear that a line exists, and not just a single dot of light. Individuals can now observe what the oscilloscope displays. The signal which a user can see is applied to the input of the oscilloscope's vertical amplifier. Because of this, the single dot of light is shifted down, and shifted up (Gibilisco, 2002, p. 59). The horizontal sweep is a very important part of the tool because if not for this, the single dot will be seen as just a single dot in the middle of the monitor. Signal is applied only into the vertical input. An oscilloscope works when both the signal voltages of the horizontal and the vertical inputs are used, because only in this way can the level of vertical deflection is identified. It is also only in this way can the frequency be seen, represented through a horizontal figure. Reading straight from the lines is possible because of this. The calibrated lines are referred to as graticule, which can be seen on the face of the cathode ray tube (Gibilisco, 2002, p. 59). With the help of an oscilloscope, many activities in science and the arts are made possible. Music visualization, for example, becomes possible because the oscilloscope displays what humans can only hear. Today, music is not just heard, but seen, too, through an oscilloscope (Gibilisco, 2002, p. 59). An oscilloscope m ay also be used to show different characteristics of music, such as polymeter. A polymeter occurs when two metric patterns work against each other (Beck & Reiser, 1998, p. 308). It happens when more than one meter is used simultaneously in an ensemble composition. In a polymeter, each functioning element of the texture, such as an instrument or a group, shows a unique rhythmic pattern contained in its own metrical frame, seemingly without apparent regard for an overarching coordinating mechanism. A type of metric polyphony or metric dissonance is created when constituent meters fail to merge with each other to create a larger meter, but merely continues in the background. Therefore, in a philosophical point of view, polymeter is similar to coexistence, not really cooperation (Agawu, 2003, p. 79). A polymeter may occur, for example, when at least four meters are simultaneously unfolding. In an ensemble, imagine a drummer playing his instrument in 5/8. Another person in the ensemble, playing bells and rattles for instance, plays in 6/8. The guy next to him with hand claps is playing in 3/8. Add to that another member who's playing the guitar in 12/8 or 6/8, and finally, the singer who sings in 6/8 or 3/4. This kind of musical ensemble exhibits a polymeter, and an oscilloscope may show the distinct patterns (Agawu, 2003, p. 79). Many people are confused between a polymeter and a polyrhythm. To more clearly define polymeter, let us compare it to polyrhythm. Some people tend to interchange these two terms, but a lot of music and sound experts differentiate between the two of them. Some experts understand polyrhythm as the simultaneous use of multiple rhythms that contrast with each other in a musical texture. Polyrhythm is present in many types of music, for instance, in African music, which is well documented by Locke, Ballantine, Jones, and Arom. There are some experts who are not comfortable with the term polyrhythm but the phenomenon it describes is recognized by all of them (Agawu, 2003, p. 79-80). Unlike in polymeter, music in polyrhythm may use different instruments, but all their patterns are coordinated by a single overarching regulative beat or tactus in a meter. For example, in an ensemble, although the music itself is persistently off beat, the drummer is not doing his own thing separate from the activities of the other members (Agawu, 2003, p.80). Many types of African music, like kaganu, exhibit polyrhythm. It is also heard in many types of European music. Passages from the work of Brahms, Beethoven, and Haydn all contain polyrhythm. Repertoires from the twentieth century, including jazz and work by Elliot Carter and Stravinsky also account for the existence of polyrhythm in Europe (Agawu, 2003, p.81). When metric patterns are simultaneously mixed together to form different metric patterns in different time signatures, mixed polymeter is created. This is possible when more than one time signature happens simultaneously in different areas, with neither being dominant no r changing the time signature once it begins. Such an occurrence may be categorized as a matter of alignment. Since a base time signature is nonexistent, each area maintains its own metric characteristics and has its own time signature. Even in this setup though, one element holds all the areas or parts together. Usually, the 8th note is the one that performs this role (Beck & Reiser, 1998, p. 308). Musicians are not the only ones who are interested in the phenomena of polymeter and polyrhythm. Psychologists who study various stimuli that a person receives from the environment are also very interested in the true nature of polymeter and its perception by human beings. In fact, the production and perception of polyrhythm has been receiving a lot of attention from researchers for a long time (London, 2004, p.49). Researchers have found different ways to study the perception of polyrhythms by humans. One strategy involves asking subjects to attend to a single stream of polyrhythm or polymemter to test their attentional focus. One research of this kind showed that when a person is confronted with complex polyrhythmic stimuli, he tends to use two different metric strategies. He will either get a composite pattern of all rhythmic streams he receives, and then fit it into an appropriate metric framework, or he will focus instead on a single rhythmic stream, fit it into its correspondin g meter, and then treat other rhythmic streams as simply noise (London, 2004, p.50). More scientific research needs to be done on the true nature of polymeter. Musicians, sound engineers, psychologists, and everyone who's interested in the effect of sounds to human beings will definitely benefit a lot from the findings of such research. Knowledge from such research can be used to invent new useful devices. Oscilloscopes also have to be further developed to aid in this type of research. The device has many potentials, and we may see it being used to more applications in the future. References Agawu, V.K. (2003). Representing African music: postcolonial notes, queries, positions. New York: Routledge. Beck, J., & Reiser, J.C. (1998). Moving notation: a handbook of musical rhythm and elementary labanotation for the dancer. Oxford: Taylor & Francis. Gibilisco, S. (2002). Teach Yourself Electricity and Electronics. New York: McGraw-Hill Professional. London, J. (2004). Hearing in time: psychological aspects of musical meter. Oxford: Oxford University Press. Scherz, P. (2000). Practical Electronics for Inventors. New York: McGraw-Hill Professional. Tomal, D., & Widmer, N. (1993). Electronic Troubleshooting. New York: McGraw-Hill Professional.

Using ielts Essay Samples to Teach Writing

Using ielts Essay Samples to Teach WritingWhat is it about ielts essay samples that draw so many people in? The reason is very simple: the materials that are presented to us are very effective in demonstrating both the best and the worst of how to write an essay. For most students, this is the first time they will ever have to write a class assignment. They have little or no experience with writing, so the main goal of the software is to allow them to see where the steps need to be taken before they try to begin writing their own.Most students are likely to simply follow the instructions that come with the materials; however, for those who are lacking in their own research, the software is very valuable. It is not always necessary to spend time reading online or checking out the dictionary; the examples provided should make up for the time that they will lose. The software does take away some of the writing aspect of the course, but it also makes life much easier for the student by k eeping them informed about all of the things that should be included in an essay.For many students, the only way to use the material is for free use. The problems that can arise with this type of teaching include a lack of interaction between the teacher and the student. Teachers will sometimes have to spend extra time watching as the student watches other students attempt to complete their assignments.In addition, a lot of the teaching materials that are available on YouTube will be very basic in nature. Students will not have any problem memorizing the information, but they will not have any opportunities to become comfortable with it. As long as they know that they will be able to get these same materials at no cost when they purchase ielts, the only real benefit is being able to review the materials.One drawback to this approach is that the material on YouTube is not always as relevant as the lessons that come with the materials. If the student has only one or two lessons, then it may not be necessary to purchase additional material. Also, if the material will not be used again, it may be better to save up for the purchase and have it available for when the student needs it.Teachers who do purchase the entire program may find themselves unable to make sense of the lessons, because the material is so extensive. It is common for a teacher to have thirty or more different sections and each lesson takes a great deal of time to review. This is where a part of the benefits of buying its outweigh the drawbacks.When a student is actually involved in the learning process, they learn a great deal about the writing style that they have been taught. Also, it is possible to progress in the writing and focus on areas that may need more attention. This is especially true when the subject matter is not as simple as the website may lead the student to believe.Teaching a class this way can be a lot of fun. Whether the instructor is a good teacher or not can depend on the st udent. In this case, the reason that many teachers prefer ielts to spending money on other programs is because of the unique approach that it gives to the teaching process.

John Wayne Gacy essays

John Wayne Gacy essays A serial killer is an individual who murders at least four persons in a reasonable amount of time. A serial killer continues to kill until they are either dead or captured. However, serial killers are proned to have "cooling off" periods in which they take a short break from killing innocent victims. Among most murder cases, someone they know, whether the murderer is a family member, a friend, an acquaintance, or a co-worker, kills the victim. However, serial killers murder strangers. For the majority of the time, serial killers work alone. Only in rare and few cases, have serial killers work with another person. In other murder cases, the motive to kill can range from rage to jealousy to money to anger; however, serial killers' motive is to kill. There are many vicious serial killers that have made their mark in history but, the most intriguing serial killer is John Wayne Gacy. John Wayne Gacy was born in Chicago March 17 1942 on St. Patricks Day. Marion Elaine Robinson Gacy and John Wayne Gacy, Sr. welcomed their first son into the world at Edgewater Hospital. John Wayne Gacy, Jr. was the second of three children. His older sister Joanne was born two years before him and two years later came his youngest sister Karen. All of the Gacy children were raised Catholic and all three attended Catholic schools where they lived on the northern side of Chicago at 4505 N. Marmara. The neighborhood in which Gacy grew up was middle class. Gacy seemed to have a very normal childhood with the exception of his relationship with his father and a series of accidents that affected him. When Gacy was eleven years old he was playing by a swing set when he was hit in the head by one of the swings. The accident caused a blood clot in the brain. However, the blood clot was not discovered until he was sixteen. From the age of eleven to sixteen he suffered a series of blackouts c aused by the clot, yet the blackouts ceased when he was given medication...

Press Releases & Networking - The Background and Fact Sheet Essay

Press Releases & Networking - The Background and Fact Sheet - Essay Example their work ranging from academic books, journals, biographies, tutorials and internet links consolidation .The Company has expressly found out that the internet has a gap. In order for this gap to be filled the Company has continued to engage experts in the Information Technology field to perform further development and analysis. Examples of such experts are Web Designers, Graphic Designers, Web Writers, Scripters and Internet Promoters with each expert concentrating on his own area of specialization. The Company has appreciated cumbersome nature of a direct development of marketing strategy and implementation of such technologies being used. Thus more research is being conducted to ascertain what technology and marketing program is more suitable in selling a designated good or service. This Company has invested on its employees in areas of their profession to maximize the sales growth rate. For instance Renee Kennedy has in the recent past concentrated on researching about marketing strategies and techniques to maintain the Company on the growth path. Terry Kent had continued to perform his research in graphic design optimizing growth in the diverse internet world. The Company has developed a book that has excelled on analysis of the web and summarizes on how to optimize an internet search engine to conduct comprehensive research and analysis. Furthermore the book entails on wide range of strategies applicable in enhancing product and services advertisement. The future plans for this Company is to write a book showing how to write for the web. In addition to that the Company intends to develop more sites. The main changes noted between the original backgrounder and this backgrounder is the wording. Basically the original wordings have been varied to abolish the room for plagiarism. Another variation implemented is concerning the owners or researchers who have been featured in the first paragraph of the backgrounder. This necessitates any reader of the articles

The Nature of Theory Why we need to be able to think in theoretical Assignment

The Nature of Theory Why we need to be able to think in theoretical terms - Assignment Example Most of the time, people think within the box suggesting the idea that they tend to understand matters simply based upon the utilization of their sight and their hearing sense. It could be noticed though that simply thinking within this box limits the capability of people to see only what they can and not that of those that they could perceive. It has been mentioned through time by psychologists and philosophers that a person who is able to think outside the box and see the whole context as well as the elemental factors contributing to the occurrence of an event or the emergence of a particular matter, is someone who could possibly be able to give birth to the options of the different procedures of development that the whole population of the human society could actually be thankful for. The question is, how could theoretical thinking be handled well One is that of the application of strategic thinking. It is innate among humans to be fascinated by the different things that they particularly see around them. It could not be denied then that through the years, this particular fascination within the different elements that could be seen in the human environment actually developed into the many discoveries and inventions that humans produced. Through passing civilization of humans, it could be observed that the people were never contented with what they already have or what they have already accomplished. This is especially true in terms of science and technology as well as in arts and literature. It is indeed undeniable that people recreate the things that are already existent within their own society. The fact that they have already been able to see what they could do regarding a certain type of field, they intend to even do better the net time that they deal with the same invention. Yes, humans never get tired of reinventing everything there is in the environment. Why is this so Human intelligence has always been noted by philosophers as the primary factor that makes the human creation different from that of the other God-made creations. The humans' ability to innovate their own achievements to even better results for the present generation to see, has particularly noted them to be those who are capable of reinventing themselves to be able to evolve from generations to generations. It is through this that people become more aware of the world around them, they cared more than ever with the political agendas, the social issues as well as other informations that concern their interests. True, the changing situation in the society and the demand towards progress requires that human intelligence be perfected in a way that it particularly caters to the needs of the entire humanity. The human brain's ability to store and restructure informations that were accepted by it through the years of an individual's life is particularly a proof that the application of humans' intelligence could still be perfected as generations are still to come along. On Personal Evaluation of Learning Process As a person, having a consumer style knowledge individual has paid much benefit for the author of this paper. The willingness to comprehend with the informations that are being presented to me accordingly actually allows me to

Personal Injury Law Essay Example | Topics and Well Written Essays - 2000 words

Personal Injury Law - Essay Example The duty of the proprietor is measured using the reasonable man’s test: that is, what a reasonable man would have done when presented with similar circumstances. The law imposes a duty on a proprietor to maintain the premises in a reasonably secure or safe condition. This means that he has a duty to offer premises that are safe and secure for use. This duty is owed to every invitee: that is, somebody who has either express or implied permission to be in the premises. Additionally, he has a duty to inspect the premises for that which was likely to cause injuries. A breach of this duty makes the proprietor liable for any resulting injury to an invitee. The basis of liability for this duty is the presumed â€Å"superior knowledge† on the part of the proprietor. The law presumes that the proprietor has better knowledge on the existence of a factor that predisposes the invitee to risks. If the invitee has as much knowledge of the hazard as the proprietor, there is no duty on the part of the proprietor to warn him and the proprietor is not liable for any resulting harm if the invitee voluntarily assumes the risk. ... Therefore, the proprietor is more likely to be found culpable where he has more comprehension of the quality and quantity of risks presented by a particular set of circumstances than the invitee. The proprietor is not liable for readily observable hazards that should be appreciated by the invitees. He has no duty to warn about obvious risks that the invitee should decipher from the use of reasonable senses. Additionally, in both cases the court addresses the question on the circumstances in which it shall grant a judgment notwithstanding the verdict of the jury. As a general rule, the court shall try as much as possible to uphold the verdict of the jury unless, even without weighing the credibility of evidence presented, there can be only one conclusion as to the proper judgment. The question as to negligence shall be left to the jury, unless in indisputable cases. The standard of review for a motion of judgment notwithstanding the verdict requires that the court weigh the evidence i n the most favorable manner to the non-moving party, giving the party all the benefit for all favorable inferences that may be made. Oates V. Mulji Motor Inn, Inc. The brief facts of this case are that a school tennis team registered to stay overnight at the appellee’s motel. At about 9pm, the team decided to go swimming at the motel’s pool. While swimming, a 17 year old Jarvis Coates drowned while swimming in the defendant’s motel pool. Coates parents commenced an action against the motel and the coach alleging that their negligence led to the death of Jarvis. At the time of the drowning, the pool did not have overhead lights, or a safety rope separating the deep from the shallow end. Although there was an underwater light

The Judicial Process and Batson Case Essay -- Jury Duty Bias Voir Dire

The Judicial Process and Batson Case Despite the efforts of lawyers and judges to eliminate racial discrimination in the courts, does racial bias play a part in today’s jury selection? Positive steps have been taken in past court cases to ensure fair and unbiased juries. Unfortunately, a popular strategy among lawyers is to incorporate racial bias without directing attention to their actions. They are taught to look for the unseen and to notice the unnoticed. The Supreme Court in its precedent setting decision on the case of Batson v. Kentucky, 476 U.S. 79 (1986), is the first step to limiting racial discrimination in the court room. The process of selecting jurors begins with prospective jurors being brought into the courtroom, then separating them into smaller groups to be seated in the jury box. The judge and or attorneys ask questions with intent to determine if any juror is biased or cannot deal with the issues fairly. The question process is referred to as voir dire, a French word meaning, â€Å"to see to speak†. During voir dire, attorneys have the right to excuse a juror in peremptory challenges. Peremptory challenges are based on the potential juror admitting bias, acquaintanceship with one of the parties, personal knowledge of the facts, or the attorney believing he/she might not be impartial. In the case of Batson v. Kentucky, James Batson, a black man, was indicted for second-degree burglary and receipt of stolen goods. During the selection of the jury the prosecutor used his peremptory challenges to strike out all of the four black potential jurors, leaving an all white jury. Batson’s attorney moved to discharge the venire, the list from which jurors may be selected, on the grounds that the prosecutor’s peremptory challenges violated his client’s Sixth and Fourteenth Amendment rights to have a jury derived from a â€Å"cross-section of the community†(People v. Wheeler, 583 P.3d 748 [Calif. 1978]). The circuit court ruled in favor of the prose cutor and convicted Batson on both counts. This case went through the courts and finalized in the U.S. Supreme Court. In a 7-2 decision, the Supreme Court ruled in favor of Batson. The Court held that the Fourteenth Amendment forbids the prosecutor from challenging potential jurors solely on account of their race or on the assumption that black jurors as a group will be unable to consider the state’s case ag... ...Philip (1986) â€Å"Court’s term marked by blows to race bias; justices ok affirmative action, ease challenges to discrimination in voting, pay, jury selection† Los Angeles Times, July 4: Part 1; pg 1; Column 2. Lewis, Peter (1992) â€Å"Judge Kills Bid To Study Race Bias In Jury Pools† The Seattle Times, May 30: pg A9. Marcus, Ruth (1991) â€Å"High Court Bars Race Bias In Selection of Civil Juries; Ruling Says Skin Color No Test of Impartiality† The Washington Post, June 4: pg A1. Riccardi, Michael (1998) â€Å"Dennis: Get Rid Of Challenges Without Cause† The Legal Intelligencer, Oct. 14: pg 1. Smith, William (1997) â€Å"Useful or Just Plain Unfair? The Debate Over Peremptories; Lawyers, Judges Spllit Over the Value of Jury Selection Method† The Legal Intelligencer, April 23: pg 1. Smith, William (1997) â€Å"McMahon Plays Opposite Side of Batson Fence† The Legal Intelligencer, April 9: pg 1. Stewart, David (1986) â€Å"Court rules against jury selection based on race† ABA Journal, July 1: 72 ABAJ 68. Zwillman, Blair and Albin, Barry (1999) â€Å"Legislature Sould Defeat Proposal To Reduce Peremptory Challenges† Nov. 29: pg 23. Batson v. Kentucky 476 U.S. 79 (1986). WWW.dictionary.law.com