ELECTRODEPOSITED NI-BASED NANOCOMPOSITES ELECTRODEPOSITION • Electroplating is often also called "electrodeposition“. • It’s a process using electrical current to reduce cations of a desired material from a solution and coat that material as a thin film onto a conductive substrate surface. • The overall process is also known as electrolysis. OBJECTIVE • To apply thin films of material to the surface of an object to change its external properties such as to increase corrosion protection
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The development of increased resistance to antibiotics is a global concern. According to WHO (2015)‚ antimicrobial resistance is an increasingly serious threat to global public health that requires action across all government sectors and society. Antibiotic resistance threatens the effective prevention and treatment of an ever-increasing range of infections caused by bacteria‚ thereby resulting to loss of the ability to treat common infections. The development of antibiotic resistance is a natural
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CHEMISTRY SAMPLE PAPER - I CLASS - XII Time : Three Hours Max. Marks : 70 General Instructions 1. All questions are compulsory. 2. Question nos. 1 to 8 are very short answer questions and carry 1 mark each. 3. Question nos. 9 to 18 are short answer questions and carry 2 marks each. 4. Question nos. 19 to 27 are also short answer questions and carry 3 marks each 5. Question nos. 28 to 30 are long answer questions and carry 5 marks each 6. Use log tables if necessary‚ use of calculators is
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method of separating mixtures of two or more compounds. Two phases are important in this method; one that is stationary and one that is moving. Chromatography works on the principle that different compounds will have different solubilities and adsorption to the two different phases between which are to be partitioned. Thin Layer Chromatography (TLC) is a solid-liquid technique. The mixture is observed when it is in two different phase; a solid (stationary phase) and a liquid (moving phase). Thin
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is because PAN’s contribution to iodine capture is very low‚ so it makes sense that if there is more PAN‚ you will have a more stable structure but less effective iodine capture. They also discovered that less time was needed to achieve maximum adsorption with SnS50+I than the SnSg+I and SnSp+I. The reason for this was not discovered. Although another worthy note from this experiment is that originally the PAN was dissolved in DMSO before it was added to the chalcogel. This actually improved the
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WHAT IS ARSENIC Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals‚ usually in conjunction with sulfur and metals‚ and also as a pure elemental crystal. The main use of metallic arsenic is for strengthening alloys of copper and especially lead (for example‚ in car batteries). Arsenic is a common n-type dopant in semiconductor electronic devices‚ and the optoelectronic compound gallium arsenide is the most common semiconductor in use after doped silicon
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Yuri Anthony D. Sucgang BMLS-IA Electrophoresis Machine Gel Electrophoresis Apparatus(Aragose Gel) Electrophoresis is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field. Gel electrophoresis is a laboratory procedure used to separate biological molecules with an electrical current. In this lesson‚ we’ll review how agarose gel electrophoresis works and introduce the equipment necessary to perform an electrophoresis experiment.
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2.1 Sanitation Methods There are Four Methods that conducted on the laboratories in order to detect the presence of microorganisms. There are Rodac Method‚ Swab Method‚ Rinse Method‚ and lastly Open Dish Method and it will be discussed in detail below. 2.1.1 Rodac Method The purpose of this Standard Operating Procedure is to describe a program that will adequately measure the efficacy of disinfection of Rooms and equipment in each laboratory‚ RODAC plates can detect the presence or absence of
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Biology Q. 1. Biological organisation starts with: a. Atomic level b. Submicroscopic molecular level c. Cellular level d. Organismic level Sol. Correct choice: (2) Q. 2. About 98 percent of the mass of every living organism is composed of just six elements including carbon‚ hydrogen‚ nitrogen‚ oxygen and: a. calcium and phosphorous b. phosphorus and sulphur c. sulphur and magnesium d. magnesium and sodium Sol. Correct choice: (1) Q. 3. Which one of the following is an example of negative
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Most water pollutants are eventually carried by rivers into the oceans. In some areas of the world the influence can be traced hundred miles from the mouth by studies using hydrology transport models. Advanced computer models such as SWMM or the DSSAM Model have been used in many locations worldwide to examine the fate of pollutants in aquatic systems. Indicator filter feeding species such as copepods have also been used to study pollutant fates in the New York Bight‚ for example. The highest toxin
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