abu essays

abu essays INTERNET REGULATION: POLICING CYBERSPACE The Internet is a method of communication and a source of information that is becoming more popular among those who are interested in, and have the time to surf the information superhighway. The problem with this much information being accessible to this many people is that some of it is deemed inappropriate for minors. The government wants censorship, but a segment of the population does not. Legislative regulation of the Internet would be an appropriate function The Communications Decency Act is an amendment which prevents the information superhighway from becoming a computer "red light district." On June 14, 1995, by a vote of 84-16, the United States Senate passed the amendment. It is now being brought through the House of Representatives.1 The Internet is owned and operated by the government, which gives them the obligation to restrict the materials available through it. Though it appears to have sprung up overnight, the inspiration of free-spirited hackers, it in fact was born in Defense Department Cold War projects of the 1950s.2 The United States Government owns the Internet and has the responsibility to determine who uses it and how it The government must control what information is This material is not lawfully available through the mail or over the telephone, there is no valid reason these perverts should be allowed unimpeded on the Internet. Since our initiative, the industry has commendably advanced some blocking devices, but they are not a substitute for Because the Internet has become one of the biggest sources of information in this world, legislative safeguards are The government gives citizens the privilege of using the Internet, but it has never given them the right to use They seem to rationalize that the framers of the constitution planned make certain that above all else...

Free Essays on On The Road With Charles Kuraltlt

ON THE ROAD WITH CHARLES KURALT BY: CHARLES KURALT In the beginning, I thought to myself†¦Ã¢â‚¬ this will be a very dull and boring book†. But to my surprise, it turned out to be one of the best books I’ve read in a while. How lucky Mr. Kuralt was to have seen that many walks of life! This book gave brief biographies on how ordinary Americans live their lives and how they impact others around them. These mini-biographies caught average Americans in the act of being themselves. This was not an acted out or staged by any means, these were sheer, humble acts of what being a great American and a good citizen is all about. Throughout his voyage, I found Mr. Kuralt to be: unbiased, desegregated, witty and charming. He would blend right in with each person as if he had known him or her for ages. For example, when he interviewed Betsy Miller of Winterville, NC, an elderly lady who opened her home to the hungry each day like clockwork. Everyday at the crack of dawn, she would get up to make biscuits. She expected nothing in return. From helping the homeless people, she simply got gratification out of having daily company and loved to help out her fellow. Another person, who impressed me as being a genuine gentleman, was Jethro Mann of Belmont, North Carolina. He spent most of his days making sure that each kid in his town had a bike to ride. He would spend his last dime on materials to fix up old abandoned bikes for kids to enjoy. Mr. Mann thought it was every child’s dream to have bicycle to ride when they wanted to. Along with being a sweet guy, he taught children respect by allowing them to ride his bikes on a rental basis but†¦ if the bike was misused or abused in any way, he would place stipulations on using it again. The child would be placed on a probationary period and was not allowed to ride for a while. It taught children the responsibility of using other people’s things and how to treat the bikes ... Free Essays on On The Road With Charles Kuraltlt Free Essays on On The Road With Charles Kuraltlt ON THE ROAD WITH CHARLES KURALT BY: CHARLES KURALT In the beginning, I thought to myself†¦Ã¢â‚¬ this will be a very dull and boring book†. But to my surprise, it turned out to be one of the best books I’ve read in a while. How lucky Mr. Kuralt was to have seen that many walks of life! This book gave brief biographies on how ordinary Americans live their lives and how they impact others around them. These mini-biographies caught average Americans in the act of being themselves. This was not an acted out or staged by any means, these were sheer, humble acts of what being a great American and a good citizen is all about. Throughout his voyage, I found Mr. Kuralt to be: unbiased, desegregated, witty and charming. He would blend right in with each person as if he had known him or her for ages. For example, when he interviewed Betsy Miller of Winterville, NC, an elderly lady who opened her home to the hungry each day like clockwork. Everyday at the crack of dawn, she would get up to make biscuits. She expected nothing in return. From helping the homeless people, she simply got gratification out of having daily company and loved to help out her fellow. Another person, who impressed me as being a genuine gentleman, was Jethro Mann of Belmont, North Carolina. He spent most of his days making sure that each kid in his town had a bike to ride. He would spend his last dime on materials to fix up old abandoned bikes for kids to enjoy. Mr. Mann thought it was every child’s dream to have bicycle to ride when they wanted to. Along with being a sweet guy, he taught children respect by allowing them to ride his bikes on a rental basis but†¦ if the bike was misused or abused in any way, he would place stipulations on using it again. The child would be placed on a probationary period and was not allowed to ride for a while. It taught children the responsibility of using other people’s things and how to treat the bikes ...

Discussion & Interpretation of an International Issue or Event during Essay

Discussion & Interpretation of an International Issue or Event during the Cold War - Essay Example On the other hand Realist or classical realist IR scholars and practitioners emphasized upon being updated with the modern day military and economic power responsible for the conviction that mishandled the problems at hand threatens to forestall all possible futures. Communism is another universalistic system of thought that offered Americans a way to feel themselves tied to the larger world (Klein, 2003, p. 30). In the conflict between liberalist and realists scholars, IR was decided to fate upon the ‘Realism’ where political strength through World War II left not just a single power vacuum in that part of the world, as in Europe, but several other parts as well. Japan’s defeat destroyed an empire that had dominated northeast Asia for decades. The rise of China during cold war was followed by the weakening rule of Nationalist government and strengthened its long-time Communist rivals, preparing the way for renewed and intensified civil conflict. Elsewhere Japanese victories undermined the authority of European colonial regimes, encouraging independence movements on the Indian subcontinent and in Southeast Asia (Gaddis, 1998, p. 55). The Cold War alignments let the Chinese to harden Cold War alignments through choices they themselves made. The European pattern had been one of the Soviet Union imposing its authority and the United States being invited to respond, in China the situation was reversed. The Chinese people chose to transfer their allegiance from the Nationalists to the Communists, hence Mao’s great victory in 1949. The Mao’s powerful government, both for ideological reasons and because it feared an American attack, sought China’s incorporation within a Soviet sphere of influence. By 1950, a fundamental shift in the balance of power had taken place where nearly overnight the communist world appeared almost to have doubled its extent. Realist school of thought have always succeeded in appearing self-evident, for

Strategic Planning Report of Health Care Organization in the United Term Paper

Strategic Planning Report of Health Care Organization in the United States - Term Paper Example Strategic planning, therefore, has to be effective in an institution in order to deliver positive changes. The first component of strategic management is Situational Analysis. This is the initial point of designing a mission statement of an organization and how the mission will be achieved. Situational Analysis is vital in that it creates a leeway in aligning an organization in relation to its environment. Situational Analysis consists of a number of activities. First, the management has to consider the organizational context. This is the internal environment of the organization and how effective it will be. Secondly, Situational Analysis is directed towards evaluation of the external environment. This considers the neighboring people, organizations and other factors that are not controlled by the organization. Situational Analysis is critical to an organization as it is the basis of establishing an organization that is likely to record desirable performance. The second component in strategic management is Strategy Formulation. This involves designing and structuring a number of ways of running the organization (Sanderson and Stirk, 2012). This involves developing the company’s strategies and how they will function. This is done by determining the strength of the company and how the strengths will help in ensuring growth. In most cases, Strategic Formulation is split into three parts. This includes operational strategies which will be based on the operation and execution of the various organizational tasks. The second part is the competitive level. In this level, the organization looks for better ways of developing a competitive advantage over its rivals. Thirdly, there is the corporate level where the organization deems to please its corporate associates. This is essential as it is directed towards creating an appealing approach towards customers, employees and the corporate associates. The third component in strategic management is Strategy

Poetry explication Essay Example | Topics and Well Written Essays - 750 words

Poetry explication - Essay Example War will not be without death or defeat. And the poem describes how sorrowful it is, that even if there is victory in war, there is no victory over death. For in war, there is violence and in violence there is death. The tone of the poem expresses sorrow and regret. Although the drums beat in victory, the drums also beats sorrow for the passing of the honorable men who sacrificed their very lives in order to gain victory in war. It is but sad for their families and comrades. Although everyone knows how difficult war can be in the end, there are still people willing to sacrifice themselves for the victory of their party. And with this, although there is victory, the family and friends of the passing comrades will always be a shadow of defeat. Yes, they are honored. Yes, the party thanks them for their sacrifice and their hand in victory. But never can they be brought back by the honor that is being given to them. The speaker of the poem tells the sad story of how he witnessed the fune ral procession of the war veterans. He is particularly struck by the fall of the father and son. With this, he begins to question the war, its purpose and its victory. He begins to lose his will to fight and his thirst for victory. He does not feel the passion soldiers feel when they begin fighting, but he feels the burden of guilt that he is still alive when there are a lot of his friends and comrades that have fallen. He feels the sorrow of the families who lost brothers, fathers and sons. And with this, he creates a picture of unfulfillment is disillusion from the war. Although they have gained the victory that they have fought hard for some time, he only felt the pain of being left while so many of his comrades are dead. Although there are drumbeats indicating victory, the drumbeats for him represent the loss that he has seen, felt and encountered during the period of war. He cannot move on so easily, and he cannot rejoice over their victory because all he sees is death all arou nd him. The picture created in the poem, where the moon shines over the procession indicates a sorrowful event despite a victorious winning. It shows that despite the victory, behind the pounding of drums indicating expressions of honor for the dead, there is still a darkness that covers the entire army. Yes, after darkness, there is light, but in this scenario, the speaker cannot find the hope of coming day but he wallows in the darkness of the bright yet ghastly moon. The moon represents how things may seem bright but it is only illuminated by the sun, when one cannot see the sun. In war, the death of the soldiers may be shown as honorable deaths, but it is a dark event, only illuminated by the thoughts of the entire army celebrating success. With the moon shining, the speaker begins to really that even if it is only illuminated by the absent sun, it is still steadfast and strong. With this, he begins to realize what he can for the dead and dying. He begins to let them go, and off er them the only gift he can give them with their deaths, that is his love and the thoughts of being able to gain victory. This indicates how soldiers can still move on while they see comrades die beside them. They gain strength with their deaths, pushing for victory, pushing for the win. Their comrades’ death is like the moon, it gives them the strength as the moon gives the nighttime some illumination. War will never be without sorrow. It is the twin sister of war. Death is always part of the war, and the only way the soldiers will be able to

Energy Drinks, the Good, the Bad, and the Ugly Essay Example for Free

Energy Drinks, the Good, the Bad, and the Ugly Essay Energy drinks, also known as power boosters, are soft drinks that contain nutrients and good flavor. The name of some energy drinks are Red Bull, Rockstar, and Monster. These drinks help improve and boost energy levels. People who drink power beverages experience decrease in stress, muscle strain, and fatigue. Power beverages also help improve speed and reaction. Energy drinks should remain on the market because they help athletes, workers, and students maintain performance, endurance and momentum. The most accepted energy drink is Red Bull. Red Bull contains caffeine and sodium. Caffeine acts as a pick-me-up, giving people the feeling of being awake and alert. Sodium helps to prevent the body from losing water. These ingredients work together to increase energy levels in the human body. Red Bull commercials often feature athletes, students, and workers drinking its products. Some people prefer to drink diet energy drinks. Red Bull is the only brand that offers power drinks in diet, making it the most popular energy drink on the market. Monster Energy, second in popularity, is highly favored by the adult community. It is the energy drink of choice for most athletes. Monster largely relies on a high dosage of sugar and caffeine to boost the users energy level. After drinking one can of Monster, users experience a feeling that is similar to drinking three cups of coffee. Rock Star is available in fourteen different flavors and is preferred by the younger generation. People that like to party prefer Rock Star because it prevents them from getting tired. The increased amounts of sugar and vitamins in Rock Star help prevent low energy. This gives party goers power to keep going. Energy drinks are good for people because they keep the human body alert. Most brands can be purchased in any store. Power drinks contain nutrients; good flavor, and increases energy levels. Many people seek energy boosters to improve metabolism and strengthen immune system when dieting. These drinks help people to stay alert in everyday life functions such as working, playing sports, and school. Red Bull and Monster both contain Vitamin B. Vitamin B is important to the body. It improves the function of red and white blood cells. Cells are instrumental in ridding the body of impurities and promoting healthy liver function. Energy drinks should not be taken off the market because they help athletes, workers, and students to maintain performance, providing momentum during times of stress and strain.

Spectrophotometry Techniques and Devices

Spectrophotometry Techniques and Devices I. INTRODUCTION Spectrophotometry Infrared Spectrophotometry is designed to identify or determine the sample by measuring absorption of infrared radiation of wave numbers in a region of 4,000 to 400 cm-1, at various wave numbers, when it passes through the sample. This method uses the property that the infrared absorption spectrum of a substance is Characteristic of its chemical structure. Infrared spectra are shown in charts drawn by plotting the wave numbers on the abscissa and the transmittances or absorbances on the ordinate. i. Spectrophotometer Spectrophotometry involves the use of a spectrophotometer. A spectrophotometer is a photometer (a device for measuring light intensity) that can measure intensity as a function of the color (or more specifically the wavelength) of light. Important features of spectrophotometers are spectral bandwidth and linear range of absorption measurement. Perhaps the most common application of spectrophotometers is the measurement of light absorption, but they can be designed to measure diffuse or specular reflectance. The use of spectrophotometers is not limited to studies in physics. They are also commonly used in other scientific fields such as chemistry, biochemistry, and molecular biology. [2] They are widely used in many industries including printing and forensic examination. ii. Design There are two major classes of devices: single beam and double beam. A double beam spectrophotometer compares the light intensity between two light paths, one path containing a reference sample and the other the test sample. A single beam spectrophotometer measures the relative light intensity of the beam before and after a test sample is inserted. Although comparison measurements from double beam instruments are easier and more stable, single beam instruments can have a larger dynamic range and are optically simpler and more compact. Historically, spectrophotometers use a monochromator containing a diffraction grating to produce the analytical spectrum. There are also spectrophotometers that use arrays of photosensors. Especially for infrared spectrophotometers, there are spectrophotometers that use a Fourier transform technique to acquire the spectral information quicker in a technique called Fourier Transform Infrared The spectrophotometer quantitatively compares the fraction of light that passes through a reference solution and a test solution. Light from the source lamp is passed through a monochromator, which diffracts the light into a rainbow of wavelengths and outputs narrow bandwidths of this diffracted spectrum. Discrete frequencies are transmitted through the test sample. Then the intensity of the transmitted light is measured with a photodiode or other light sensor, and the transmittance value for this wavelength is then compared with the transmission through a reference sample. In short, the sequence of events in a spectrophotometer is as follows: The light source shines into a monochromator. A particular output wavelength is selected and beamed at the sample. The sample absorbs light. Many spectrophotometers must be calibrated by a procedure known as zeroing. The absorbency of a reference substance is set as a baseline value, so the absorbencies of all other substances are recorded relative to the initial zeroed substance. The spectrophotometer then displays% absorbency (the amount of light absorbed relative to the initial substance).[2] II. UV IR SPECTROPHOTOMETRY i. Ultraviolet spectrophotometry The most common spectrophotometers are used in the UV and visible regions of the spectrum and some of these instruments also operate into the near-infrared region as well. Visible region 400-700nm spectrophotometry is used extensively in colorimetry science. Ink manufacturers, printing companies, textiles vendors, and many more, need the data provided through colorimetry. They take readings in the region of every 10-20 nanometers along the visible region, and produce a spectral reflectance curve or a data stream for alternative presentations. These curves can be used to test a new batch of colorant to check if it makes a match to specifications e.g., iso printing standards. Traditional visual region spectrophotometers cannot detect if a colorant or the base material has fluorescence. This can make it difficult to manage color issues if for example one or more of the printing inks is fluorescent. Where a colorant contains fluorescence, a bi-spectral fluorescent spectrophotometer is used. There are two major setups for visual spectrum spectrophotometers, d/8 (spherical) and 0/45. The names are due to the geometry of the light source, observer and interior of the measurement chamber. Scientists use this machine to measure the amount of compounds in a sample. If the compound is more concentrated more light will be absorbed by the sample; within small ranges, the Beer-Lambert law holds and the absorbance between samples vary with concentration linearly. In the case of printing measurements two alternative settings are commonly used- without/with UV filter to control better the effect of UV brighteners within the paper stock. Samples are usually prepared in cuvettes; depending on the region of interest, they may be constructed of glass, plastic, or quartz ii. IR spectrophotometry Spectrophotometers designed for the main infrared region are quite different because of the technical requirements of measurement in that region. One major factor is the type of photosensors that are available for different spectral regions, but infrared measurement is also challenging because virtually everything emits IR light as thermal radiation, especially at wavelengths beyond about 5ÃŽ ¼m. Another complication is that quite a few materials such as glass and plastic absorb infrared light, making it incompatible as an optical medium. Ideal optical materials are salts, which do not absorb strongly. Samples for IR spectrophotometry may be smeared between two discs of potassium bromide or ground with potassium bromide and pressed into a pellet. Where aqueous solutions are to be measured, insoluble silver chloride is used to construct the cell. III. INFRARED Infrared (IR) radiation is electromagnetic radiation with a wavelength between 700nm and 300Â µm, which equates to a frequency range between 1THz and 430THz—a span of more than three orders of magnitude. Its wavelength is longer (and the frequency lower) than that of visible light, but the wavelength is shorter (and the frequency higher) than that of terahertz radiation microwaves. Bright sunlight provides an irradiance of about 1kilowatt per square meter at sea level. Of this energy, 527 watts is infrared light, 445 watts is visible light, and 32 watts is ultraviolet light. The infrared part of the electromagnetic spectrum covers the range from roughly 300 GHz (1 mm) to 400 THz (750 nm). It can be divided into three parts: Far-infrared, from 300 GHz (1 mm) to 30 THz (10 ÃŽ ¼m). The lower part of this range may also be called microwaves. This radiation is typically absorbed by so-called rotational modes in gas-phase molecules, by molecular motions in liquids, and by phonons in solids. The water in the Earths atmosphere absorbs so strongly in this range that it renders the atmosphere effectively opaque. However, there are certain wavelength ranges (windows) within the opaque range which allow partial transmission, and can be used for astronomy. The wavelength range from approximately 200 ÃŽ ¼m up to a few mm is often referred to as sub-millimeter in astronomy, reserving far infrared for wavelengths below 200 ÃŽ ¼m. Mid-infrared, from 30 to 120 THz (10 to 2.5 ÃŽ ¼m). Hot objects (black-body radiators) can radiate strongly in this range. It is absorbed by molecular Vibrations, where the different atoms in a molecule vibrate around their equilibrium positions. This range is sometimes called the fingerprint region since the mid-infrared absorption spectrum of a compound is very specific for that compound. Near-infrared, from 120 to 400 THz (2,500 to 750 nm). Physical processes that are relevant for this range are similar to those for visible light.[4] IV. Infrared spectroscopy (IR spectroscopy) is the subset of spectroscopy that deals with the infrared region of the electromagnetic spectrum. It covers a range of techniques, the most common being a form of absorption spectroscopy. As with all spectroscopic techniques, it can be used to identify compounds or investigate sample composition. Infrared spectroscopy correlation tables are tabulated in the literature. A common laboratory instrument that uses this technique is an infrared spectrophotometer. i. Background and theory The infrared portion of the electromagnetic spectrum is divided into three regions; the near-, mid- and far- infrared, named for their relation to the visible spectrum. The far-infrared, approximately 400-10cm−1 (1000-30ÃŽ ¼m), lying adjacent to the microwave region, has low energy and may be used for rotational spectroscopy. The mid-infrared, approximately 4000-400cm−1 (30-2.5ÃŽ ¼m) may be used to study the fundamental vibrations and associated rotational-vibrational structure. The higher energy near-IR, approximately 14000-4000cm−1 (2.5-0.8ÃŽ ¼m) can excite overtone or harmonic vibrations. The names and classifications of these subregions are merely conventions. They are neither strict divisions nor based on exact molecular or electromagnetic properties. Infrared spectroscopy exploits the fact that molecules have specific frequencies at which they rotate or vibrate corresponding to discrete energy levels (vibrational modes). These resonant frequencies are determined by the shape of the molecular potential energy surfaces, the masses of the atoms and, by the associated vibronic coupling. In order for a vibrational mode in a molecule to be IR active, it must be associated with changes in the permanent dipole. In particular, in the Born-Oppenheimer and harmonic approximations, i.e. when the molecular Hamiltonian corresponding to the electronic ground state can be approximated by a harmonic oscillator in the neighborhood of the equilibrium molecular geometry, the resonant frequencies are determined by the normal modes corresponding to the molecular electronic ground state potential energy surface. Nevertheless, the resonant frequencies can be in a first approach related to the strength of the bond, and the mass of the atoms at either end of it. Thus, the frequency of the vibrations can be associated with a particular bond type. Simple diatomic molecules have only one bond, which may stretch. More complex molecules have many bonds, and vibrations can be conjugated, leading to infrared absorptions at characteristic frequencies that may be related to chemical groups. For example, the atoms in a CH2 group, commonly found in organic compounds can vibrate in six different ways: symmetrical and antisymmetrical stretching, scissoring, rocking, wagging and twisting: The infrared spectrum of a sample is collected by passing a beam of infrared light through the sample. Examination of the transmitted light reveals how much energy was absorbed at each wavelength. This can be done with a monochromatic beam, which changes in wavelength over time, or by using a Fourier transform instrument to measure all wavelengths at once. From this, a transmittance or absorbance spectrum can be produced, showing at which IR wavelengths the sample absorbs. Analysis of these absorption characteristics reveals details about the molecular structure of the sample. When the frequency of the IR is the same as the vibrational frequency of a bond, absorption occurs. This technique works almost exclusively on samples with covalent bonds. Simple spectra are obtained from samples with few IR active bonds and high levels of purity. More complex molecular structures lead to more absorption bands and more complex spectra. The technique has been used for the characterization of very complex mixtures. ii. Adjustment and Instrument Use a dispersive infrared spectrophotometer or a Fourier-transform infrared spectrophotometer. Before using the infrared spectrophotometer, adjust it as specified in the operating manual. The linearity of the absorbance between 20% and 80% of transmittance (%) should be within 1%. The reproducibility of the transmittance should be within 0.5% in two consecutive measurements. The reproducibility of wave number should be within 5 cm-1 at about 3,000 cm-1 and within 1 cm-1 at About 1,000 cm-1. In addition, adjust the instrument so that a spectrum exhibits absorptions at the wave numbers as indicated in the following figure when measurement is made on a polystyrene film (about 0.03 mm thick).[5] iii. Preparation of Sample According to an appropriate one of the methods below,Prepare the sample so that the transmittance of the most intense absorption bands should be within a range of 20 to 80%. For the optic plate, use sodium chloride, potassium bromide, or thallium iodide bromide. Potassium Bromide Disk Method Place 1 to 2 mg of a solid sample and 100 to 200 mg of dried potassium bromide for infrared spectrophotometry into an Agate mortar, quickly reduce to fine particles protecting from moisture, mix Completely, and transfer into a die. Press the surface of the disk at 500 to 1,000 N/cm2 under reduced pressure of not more than 0.7 kPa for 5 to 8 minutes, and use this disk for the measurement. Solution Method Prepare a solution of the solid or liquid sample in the Specified solvent, inject the solution into a fixed cell for liquid, and use this cell for the measurement. Place the similar cell containing the same solvent for the Compensation beam. The thickness of the fixed cell is generally 0.1 mm or 0.5 mm. Paste Method Crush finely a solid sample and knead well with liquid Paraffin in the mortar. Hold the paste between two optic plates without any air gap, and measure. Liquid Film Method Hold 1 to 2 drops of liquid sample as a capillary film Held between two optic plates, and measure the liquid layer between the plates. If it is necessary to thicken the liquid layer, place rings of aluminum foil or a similar material between the two optic plates so that the liquid sample lies between the plates. Thin Film Method Dissolve the sample in the specified solvent, and apply it to one optic plate. Evaporate the solvent by drying with hot air, and measure the thin film adhered on the plate. If the sample is a film with a thickness of not more than 0.02 mm, measure the film just as it is. Gas Sample Measurement Put the sample gas in a gas cell with a light Path of 5 to 10 cm in length, previously evacuated, under pressure specified in the individual monograph, and measure. A long cell with the light path of not shorter than 1 m is also used if necessary. iv. Conventional method A beam of infrared light is produced and split into two separate beams. One is passed through the sample, the other passed through a reference which is often the substance the sample is dissolved in. The beams are both reflected back towards a detector, however first they pass through a splitter which quickly alternates which of the two beams enters the detector. The two signals are then compared and a printout is obtained. A reference is used for two reasons: This prevents fluctuations in the output of the source affecting the data This allows the effects of the solvent to be cancelled out (the reference is usually a pure form of the solvent the sample is in) v. Fourier transform infrared spectroscopy Fourier transform infrared (FTIR) spectroscopy is a measurement technique for collecting infrared spectra. Instead of recording the amount of energy absorbed when the frequency of the infra-red light is varied (monochromator), the IR light is guided through an interferometer. After passing through the sample, the measured signal is the interferogram. Performing a Fourier transform on this signal data results in a spectrum identical to that from conventional (dispersive) infrared spectroscopy. FTIR spectrometers are cheaper than conventional spectrometers because building an interferometer is easier than the fabrication of a monochromator. In addition, measurement of a single spectrum is faster for the FTIR technique because the information at all frequencies is collected simultaneously. This allows multiple samples to be collected and averaged together resulting in an improvement in sensitivity. Virtually all modern infrared spectrometers are FTIR instruments. Summary of absorptions of bonds in organic molecules vi. Uses and applications Infrared spectroscopy is widely used in both research and industry as a simple and reliable technique for measurement, quality control and dynamic measurement. It is of especial use in forensic analysis in both criminal and civil cases, enabling identification of polymer degradation for example. It is perhaps the most widely used method of applied spectroscopy.[citation needed] The instruments are now small, and can be transported, even for use in field trials. With increasing technology in computer filtering and manipulation of the results, samples in solution can now be measured accurately (water produces a broad absorbance across the range of interest, and thus renders the spectra unreadable without this computer treatment). Some instruments will also automatically tell you what substance is being measured from a store of thousands of reference spectra held in storage. By measuring at a specific frequency over time, changes in the character or quantity of a particular bond can be measured. This is especially useful in measuring the degree of polymerization in polymer manufacture. Modern research instruments can take infrared measurements across the whole range of interest as frequently as 32 times a second. This can be done whilst simultaneous measurements are made using other techniques. This makes the observations of chemical reactions and processes quicker and more accurate. Techniques have been developed to assess the quality of tea-leaves using infrared spectroscopy. This will mean that highly trained experts (also called noses) can be used more sparingly, at a significant cost saving. Infrared spectroscopy has been highly successful for applications in both organic and inorganic chemistry. Infrared spectroscopy has also been successfully utilized in the field of semiconductor microelectronics[8]: for example, infrared spectroscopy can be applied to semiconductors like silicon, gallium arsenide, gallium nitride, zinc selenide, amorphous silicon, silicon nitride, etc. V. USES IN ORGANIC A technique to identify materials including organic polymers. An infrared spectrometer directs infrared radiation through a sample and records the relative amount of energy absorbed by the sample as a function of the wavelength or frequency of the infrared radiation. The method is applicable particularly to organic materials, because the vibrational frequencies of the constituent groups within the molecules coincide with the electromagnetic frequencies of the infrared radiation. Therefore, the infrared radiation is selectively absorbed by the material to produce an absorption spectrum. The spectrum produced is compared with correlation spectra from known substances. VI. SPECTRORADIOMETERS Spectroradiometers, which operate almost like the visible region spectrophotometers, are designed to measure the spectral density of illuminants in order to evaluate and categorize lighting for sales by the manufacturer, or for the customers to confirm the lamp they decided to purchase is within their specifications. Components: The light source shines onto or through the sample. The sample transmits or reflects light. The detector detects how much light was reflected from or transmitted through the sample. The detector then converts how much light the sample transmitted or reflected into a number. CONCLUSION In this topic which is infrared spectrophotometry I have introduced what is spectrophotometry. And it is used in a device called spectrophotometer which is explained in the above thesis. Followed on single beam spectrophotometer is also explained with its design working. Spectrophotometry is generally of two types UV IR spectrophotometry, UV spectrophotometry is explained in short but IR spectrophotometry is explained briefly. The word INFRARED is explained i.e. what it means, infrared region is explained in EM radiation. In EM spectrum there comes a topic infrared spectroscopy which is explained briefly with its background theory. Its preparation of sample followed by conventional method of it. There is other phenomenon called FITR (Fourier transform infrared spectroscopy) is a measurement technique for collecting infrared spectra. FTIR spectrometers are cheaper than conventional spectrometers. Uses application is also explained in the above thesis. At last but not the least its use in organic is explained. The idea of Spectroradiometers is also given, which operate almost like the visible region spectrophotometers. This is end of the conclusion of my thesis infrared spectrophotometry.