The objective of this research is to propose a new way to fabricate a composite material for future bone replacement development via growing apatite crystal on silk fibroin fiber. Apatite crystallization on silk fibroin fiber was prepared by precipitation reaction between Ca(NO3)2 solution and (NH4)2HPO4 solution adjusted pH by NH4OH solution. In this work Effect of solution concentration and initial pH values was investigated on apatite crystals. Chicken eggshells were used as calcium source by heating sufficiently powdered eggshells at 1300 °C for 4 h to acquire CaO powders made Ca(NO3)2 solution by dissolving in 65% HNO3 solution. Prepared Ca(NO3)2 solutions were adjusted concentration as 3 levels and were adjusted different pH values of 7 8 and 9 respectively. For processing of apatite crystallization silk fibroin fibers were immersed in Ca(NO3)2 solutions for 30 min. After that (NH4)2HPO4 solutions were added in silk fibroin fibers immersed in Ca(NO3)2 solutions. Reaction time was fixed about 1 min before cleaning to remove impurity precipitates on surface of silk fibroin fiber. Finally apatite crystallization on silk fibroin fibers occurred. The obtained result can conclude morphologies of apatite crystals on silk fibroin fibers was sheets sphere and flower. Solution concentrations and initial pH values directly influenced on Ca/P ratio of obtained apatite crystals by Ca/P ratio increases as increased solution concentrations or increased pH values. Finally research silk fibroin fibers were woven as two patterns of plain weave and twill weave and they were investigated Young’s modulus and tensile strength. The result indicates that Young’s modulus of silk fibroin fiber sheets woven as twill weave and as plain weave were about 616 MPa and 425 Mpa and tensile strengths of them weave were about 40 Mpa and 72 Mpa respectively. The optimum condition of growing apatite crystals on silk fibroin fibers was sample of CP19. Design of silk fibroin fiber with plain weave was an optimum pattern for future biomedical applicaions.

The main objective of the study is to design blades for chopping heart rice straw. This study is composed of three main testing parameters. The first parameter used is speeds at which the knife blades that will chop the straw. They will have 2 speeds one at 540 and the other at 720 rpm. The second parameter is the types of blades that will be used eclipse blades and smooth blades. The last parameter is the cutting edges. The eclipse and smooth types of the blades will have 4 5 and 6 cutting edges. For this test we use stubble sorted 50 heart rice straws. Placing the straw on the prepared steel and test with all three testing parameters repeating each testing parameter thrice and record the results. Based on the testing and evaluation the 6 edge eclipse blades with a speed of 720 rpm. Yielded the highes results for chopping heart rice straw at 66 percent. For the 6 edged smooth blades with a speed of 720 rpm the yield results for chopping heart rice straw was at 35.76%

Mahajanaka mango juice was health benefits and was a source of vitamins especially vitamin A in the form of beta carotene which a potent antioxidant. The purpose of this study was to consumer acceptance and quality of ready to drink mahajanaka mango juice the optimum ratio of mango pulp and water at 1:2 and 1:2.5 to 1:3. Result showed that the optimum ratio of mango pulp to water was 1:2. The mango juice contain of malic tartaric citric succinic and ascorbic acid at 0.005 0.053 0.180 0.005 and 0.138% respectively. The selected juice had 3.49 12.20oBrix 62.25 7.71 59.24 and 5.26 micrograms per gram of pH total soluble solids L * a * b * color values and beta-carotene content respectively. Sensory evaluation result revealed that the selected mango juice was accepted by 30 panelists which was medium like in color appearance odor taste and overall acceptability. Result of consumer test had shown that 97 % of 100 consumers from Lampang province were accepted and 65 % decided to buy the product.

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

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