parameters such as suspended solids‚ turbidity‚ color‚ taste and odor and temperature. * To calculate the solids parameter * To identify the chemical water quality parameters such as total dissolved solid‚ alkalinity and hardness * To calculate the water alkalinity and hardness * To demonstrate the biological water quality parameters such as pathogens and indicators Water Quality Parameter 1.1 Physical Parameter: Physical parameters define those characteristics of water that …
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3.5.3 X-Ray Diffractometery (XRD). The crystallinities of pure Zolmitriptan‚ excipients and liquisolid system were evaluated by XRD measurement. It has been seen that polymorphic changes of the drug are important factors‚ which may affect the drug dissolution rate and bioavailability(135). The X- ray diffractogram of pure Zolmitriptan Figure (25) exhibited several sharp peaks at different angle (2Ɵ)‚the three strongest angles were 19.2 Ɵ‚ 21.9 Ɵ and 23.8 Ɵ ‚other angles were 12.2 Ɵ‚13.7 Ɵ‚ 14.2
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EXPERIMENT NO. 2 (A) Types of cutting tools: Single-point cutting tools can be classified by their motion as linear or rotator‚ depending on whether they rotate while cutting. Linear cutting tools include tool bits (single-point cutting tools and broaches. Rotary cutting tools include drill bits‚ countersink and counter bores‚ taps and dies milling cutters and reamers. Other cutting tools‚ such as band saw blades and fly cutters‚ combine aspect of linear and rotary motion. Following are different
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The Determination of the Concentration of Hard Water Ions by the Titration of EDTA By Hannah Denby Lab partners: Heidi Kiziah‚ Leonie Hamel University of Central Florida‚ CHM 2046L December 3rd‚ 2015 Abstract. The “hardness” of water is a common dilemma attributed by high concentrations of metals such as calcium and magnesium. This is a result of the properties of water; because it is a good solvent‚ impurities are easily dissolved. As water moves through soil and rock‚ it dissolves minute amounts
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array. Castings were made under the constraint of different process parameters like mould firing temperature‚ pouring temperature‚ firing time and mixing of silica sand of different grain fineness numbers to investigate their effects on the surface hardness‚ impact strength and tensile strength of the final castings. The variations in the trend of the aforesaid mechanical properties were observed and it was deduced out that high mould firing temperature‚ higher pouring temperature‚ maximum firing time
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million gallons because the units are not the same on both sides of the relationship. 1 pound per 1000 gallons = 120 ppm An item that is 99.9% pure contains 1000 ppm of impurities. A boiler that makes up 4000 gal/day of water having 100 ppm of hardness‚ has a potential of accumulating over 1000 pounds of scale per year. Alkalinity Test In natural waters‚ alkalinity is most commonly the result of bicarbonate and carbonate ions; in treated waters‚ alkalinity may also be contributed by hydroxide
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pressure mercury vapour lamp to the power output of 125W/cm2 was used for the photocrosslinking study. The viscosity of the photocurable formulation was measured by Brookfield Viscometer RVDV–II+ (USA). The hardness of photocrosslinked polymer films was determined by A–Type JIS K6301 hardness tester (Germany). 2.6. Photocrosslinking of Acrylated Prepolymer The photocurable formulation containing the prepolymer‚ HVPA (70%)‚ diluent‚ TEGDA (30%) and the photoinitiator‚ DMPA (0.25%) were coated on
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DMLS of the maraging steel. Intercellular spacing was less than 1 (m and this contributed to the excellent strength and hardness achieved for both as-sintered and aged material. Aging at 490(C for 6 h led to an increase in hardness and strength through the precipitation of Ni3(Mo‚Ti) and Fe2Mo intermetallics. Ultimate tensile strength increased from 1101 to 1875 MPa‚ Vickers hardness increased from 387 to 603 kg/mm2 but elongation was reduced from 11.3 to 1.8% by aging the steel. These test results
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Attention must be paid to from the following two kinds of circumstances. When handling materials with large size or high hardness‚ the shortage of big sized ball will display a situation of rough running and will not reach the fitness requirements. And processing capacity is limited and will affect grinding efficiency. When dealing with materials with small size and low hardness. The shortage of small ball will display a situation of rough running. Appropriate proportion of small ball is necessary
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due to comparatively lower hardness‚ whereas the erosion scar of the specimens appears to be smooth and shallow at near normal impacts due to comparatively higher hardness attained by localized plastic deformation. 3.2 Micro hardness Micro hardness was measured along the erosion scar and it was found that the micro hardness of the eroded area is higher than that of the non-eroded area at near normal angle of impact. The remarkable improvement in hardness and erosion resistance is attributed
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