จำนวน Repository ( 160 )

Study the shrinkage percentage  of  plastic polyethylene terephthalate   (PET)  used with make blow mold
Study the shrinkage percentage of plastic polyethylene terephthalate (PET) used with make blow mold

The shrinkage depended on the product shape and the type of plastic used in blow This research aims to study the shrinkage percentage of plastic polyethylene terephthalate grade : N1 used with the make blow mold in 2 stages. The testing results were as follow. vertical shrinkage percentage ( Z axis ) was 0.787 percentage and horizontal shrinkage Percentage ( XY axis ) was 2.13 percentage

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Effect of bottom ash as fine aggregate on strength of concrete
Effect of bottom ash as fine aggregate on strength of concrete

This research was aimed to study the effect of bottom ash (BA) as fine aggregate in fly ash concrete and cement-only concrete on strength of water-cured and uncured concrete. The water to binder ratios were 0.35 and 0.55 to represent high strength and normal strength concrete respectively. The weight percentages of replacement of cement by fly ash were 0 and 30%. The replacement ratios of bottom ash as fine aggregate were 0 10 and 30% by volume of fine aggregate. The results indicated that the slump and setting time of concrete increased with the increase of bottom ash content. In contrast the compressive and tensile strength decreased with the increase of bottom ash content. From the curing sensitivity index it was showed that the fly ash concrete required longer curing period than cement-only concrete. In case of high strength concrete the use of bottom ash in fly ash concrete can reduce curing sensitivity of concrete

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Research and development products from by-products in small- scale industries and medium-scale industries
Research and development products from by-products in small- scale industries and medium-scale industries

This research aimed to utilize by-products from small- scale and medium-scale Industries to produce 3 products. The first was formulate pasteurized milk juice beverages (PMJB) consisted of 10%reprocessed milk 45%pineapple juice 45%lychee juice 0.55%HM pectin and 1%sugar. Pasteurization at 72C 15 s kept at 6?1C 8 days. PMJB has 2.8%protein 2.1%fat 8.8%carbohydrate 0.021%Ca and 65.3 Kcal. The second product was cracker added ?-carotene from carrot. The chemical specification was 3.15% moisture 5.03% protein 8.07% fat 65.12% carbohydrate 5.42% ash and 3.15% fibre. The Third product was accessories which use from sisal rope

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A modified compressor of single phase 220 volt to three phase 220 volt for air conditioner controlled with variable speed drive
A modified compressor of single phase 220 volt to three phase 220 volt for air conditioner controlled with variable speed drive

This paper is proposed a compressor of spilt type air conditioning modification for using with variable speed drive to control room temperature. This technique is implemented by modified reciprocating compressor of 220 V single phase air conditioner 12500 BTU to 3 phase 220 volt in order to connect with inverter variable speed drive which has input 220 V single phase and output 3 phase 220V. The result of experimental is found that modified compressor can be operated in normal condition at maximum speed. The suction pressure is 65 psig discharge pressure is 250 psig and mean of motor current is 6.48 Ampere. The proposed modified compressor can be applied with conventional split type air conditioning by change the starting method from direct start online into soft start with variable speed drive

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Effects of foaming agents on the quality of mahajanaka mango by foam-mat drying
Effects of foaming agents on the quality of mahajanaka mango by foam-mat drying

Mahajanaka mango (Mangifera indica L.) the yellow fruit had identity on color aroma and sweet taste. It had the highly potential to develop into a powdered beverage with a aroma and flavor similar to fresh fruit juices as possible. The objective of this study was to determine an appropriate foaming substance from 6 types ; Methocel? 65 HG Glyceryl monostearate (GMS) Carboxy methyl cellulose (CMC) Methocel? 65 HG mixed with GMS Methocel? 65 HG mixed with CMC and GMS mixed with CMC with 1:1 w/w with completely Randomized experimental design. Physicochemical properties of mahajanaka mango juice the color values L* a* b* pH total soluble solid citric acid and total solid equals 39.02 18.79 67.36 3.96 14.00๐Brix 0.40 milligram per 100 grams and 15.14%. The mahajanaka mango juice was adjusted 0.70% total acidity (as citric acid) 25๐Brix of total soluble solid and added 2.0% of maltodextrin. The result showed that an appropriate foaming agent was added 45% of 1.8% mixture of Methocel? 65 HG with CMC into mahachanaka mango juice. It had foam stability and density. The mahajanaka mango juice foam had values of stability density and overrun equals 0.001 milligram per min 0.14 gram per milligram and 602.11% respectively and Scanning Electron Microscope (SEM) had a porous structure with sphere and ellipsoid particle.

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