The following is a project made by anonymous: INTRODUCTION The general purpose photoconductive cell is also known as LDR – light dependent resistor. It is a type of semiconductor and its conductivity changes with proportional change in the intensity of light. There are two common types of materials used to manufacture the photoconductive cells. They are Cadmium Sulphide (CdS) and Cadmium Selenide (CdSe). Extrinsic devices have impurities added‚ which have a ground state energy closer to the conduction
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third and the fourth weren’t that bad. I don’t recall getting sick any other times. I did experience some side effects from radiation. The typical side effects were discoloration‚ and somewhat of a sunburn‚ as to be expected. But aside from the physical effects on the breast tissue itself‚ I was very tired. I had my radiation treatments every morning‚ and once I left radiation‚ I would go straight back to class. But during that time I started to take vitamins so that it would increase my energy. I
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Professionalism is an adherence to a set of values comprising both a formally agreed-upon code of conduct and the informal expectations of colleagues‚ clients and society. The key values include acting in a patient’s interest‚ responsiveness to the health needs of society‚ maintaining the highest standards of excellence in the practice of medicine and in the generation and dissemination of knowledge. In addition to medical knowledge and skills‚ medical professionals should present psychosocial and
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by losing atomic particles (protons‚ neutrons‚ or electrons). When solid radium decays to form radon gas‚ it loses two protons and two neutrons. These two protons and two neutrons are called an alpha particle‚ which is a type of radiation. The elements that produce radiation are called radioactive.
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oscillation that ranges from 3 KHz to 300 GHz and work hand in hand with the frequency of the radio waves and the fluctuation currents that carry radio signals. Radio Frequency has different types of properties but ones that are most important are the radiation of electromagnetic waves cause by the energy in a RF current. Usually an electromagnetic wave is the main base of what is known to be Radio Technology. RF can be found emitting around conductors of electrical currents‚ they are usually not found
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Examples of Radiant Energy The term radiant energy refers to energy that travels by waves or particles‚ particularly electromagnetic radiation such as heat or x-rays. Radiant energy is created through electromagnetic waves and was discovered in 1885 by Sir William Crookes. Fields in which this terminology is most often used are telecommunications‚ heating‚ radiometry‚ lighting‚ and in terms of energy created from the sun. Radiant energy is measured in joules. Ads by Google Best Solar Investments
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ABSTRACT The short and unpredictable nature of the conventional chemical batteries‚ along with the frequent replacements that they require‚ has created an acute need for a reliable‚ longer-lasting and rugged source of energy. Moreover Radars‚ spacecrafts‚ interstellar probes and other advanced communication devices require much larger power than that can be met by conventional energy sources. The solution to long term energy source is the nuclear powered batteries which have a life span of few
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Root Operations and Approaches Tool Section 0 Alteration 0 Bypass Medical and Surgical Definition: Explanation: Examples: Definition: Explanation: 1 Examples: 2 3 4 Change Control Creation 5 Destruction 6 Detachment Dilation 7 8 9 B Division Drainage Excision Extirpation F G H Explanation: Examples: Definition: Explanation: Examples: Definition: Explanation: Examples: Definition: Explanation: Examples: Definition:
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of electromagnetic radiation with matter in the experiment it means it’s the usage of ultra-light to measure the absorbance of the copper sulpate. The regions of the electromagnetic spectrum immediately adjacent to the high- and low- energy extremes of the visible region are known as the ultraviolet (UV) and infrared (IR) regions respectively. Thus a quantum of UV radiation possesses more energy than one in the visible region whilst the reverse is true for quantum of IR radiation. All spectrophotometric
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SPECTROPHOTOMETRY Spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength It involves with the use of a spectrophotometer. A spectrophotometer is a photometer that can measure intensity as a function of the light source wavelength. A spectrophotometer is commonly used for the measurement of transmittance or reflectance of solutions‚ transparent or opaque solids‚ such as polished glass‚ or gases. Principles
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