จำนวน Repository ( 1174 )

The development of contemporary packaging. for order to increase increasing of remaining agricultural community. A case study of community enterprise applications, Amphoe Doem Bang Nang Buat , Suphanburi
The development of contemporary packaging. for order to increase increasing of remaining agricultural community. A case study of community enterprise applications, Amphoe Doem Bang Nang Buat , Suphanburi

The preparation of this project is to study the development of contemporary packaging to increase. Sold its remaining output from the agricultural community. A case study of community enterprise products processing. District Doem Bang Nang Buat district. Suphanburi to design and develop a new form of packaging. Technically packaging designAccording to a study by the packaging. Can be divided into two categories : The study design packaging. Can be divided into two categories found. 1. Structural Packaging The format of the package can be purchased on the market. Based on the usage right. To comply with the reduced cost is not very high but can work well. The packaging is a rectangular shape that is easy to deploy overlap. Make no space to display the product for distribution. The packaging of the processed banana products including banana and four rolls of dried banana banana banana chips and stir to choose the material used is aluminum foil bags with zip lock. Has the ability to prevent the protection of gas permeability gas oil and light perfectly. Therefore to protect and preserve the product contained within life. Packaging of carved bamboo shoots. Choose materials that will be used as a glass bottle. Physical properties clean and safe. High heat resistance Last for long After use can be cleaned and recycled into new packaging. Packaging of dried Roselle. Material selection is a clear plastic bag. Made from polyethylene Paulinus ethylene (PE) low density polyethylene (LDPE) and outer structure used to be the box art paper (Art Paper) paper made from chemical pulp. (Pulp manufactured using chemicals) and a smooth surface on one side. The glaze is shiny gloss Or the time A white paper Print images with high detail. The images came out sharp and beautiful. And packaging of sugar cane The material is selected to handle plastic canister with a lid that can be used inside the body. And a belt outer material is coated paper (Art Paper) boxes and packaging units. (Tray forming a rectangle) to select a paper material coated PET plastic that is resistant to moisture and grease. The printing system is offset (Off Set Printing) Printing System is the most commonly used around the world today. Because the prints are streamlined in the artwork. Printing is hassle-free printing multi-color or four-color images with exquisite beauty so much so type in the number. The price will be even lower. 2. Graphic Packaging It is the concept The format used bright colors beautifully. Notably the main color is green. Yellow represents the yield from agriculture. And colors from the color of the underlying agricultural production such as Roselle drying. Use of hibiscus pink and purple. Yellow or brown tones Instead the color of molasses sugar cane used to make patternsillustrations etc. are used as the main characteristics of photo-realistic. The background is a graphic image editor with the content. The story of a product/ product And showcase The identity of the group / community The audience wants to highlight agricultural products. Awards / Portfolio Contest and history/ origin of the Community Enterprise ripe bananas privatization Gold Group has detailed information on the various packaging-related products as required by law. To build confidence the more buyers. The characters used to write a simple and contemporary look flick easily read. The findings Summary of satisfaction on the new packaging. 1. Structural Packaging Has satisfied most of the forms. The overall packaging Are appropriate to the product At the highest level with an average of 4.80 2. Design a graphic package. Most are satisfied with the package. Bright colors are the most beautiful with an average of 4.86

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การพยากรณ์กำลังรับแรงกระแทกของปอซโซลานคอนกรีตด้วยแบบจาลองฟัซซีลอจิก
การพยากรณ์กำลังรับแรงกระแทกของปอซโซลานคอนกรีตด้วยแบบจาลองฟัซซีลอจิก

This objective research to study the possibility of used properties pozzolan material for concrete cement the ternary blend by fly ash metakaolin and silica powder by replacement cement partially on the strength for Flexural and impact by replace Portland cement. Consideration of concrete by varying the ratio there are three values are (w/d) of 0.38 0.55 and 0.8 follow on standards ACI 211.1-91 and variable amounts of replacement cement some. The ternary blend of the fly ash metakaolin and silica powder of percentage 0 15 20 and 25 and by weight of cement. and the control specimens (w/b) without contain fly ash kaolin and silica powder the slump test in the range of 3-5 cm and the use super plasticizer to control the slump test of concrete. By casting specimens of cylindrical diameter 10x20 cm cube 10x10x10 cm and the beam size 10x10x35 cm after curing 28 days and test compressive tensile and flexural strength of concrete all specimens The results showed that The increase will help improve the quality of the concrete physical properties 35 percent up on the cement with clay 15 percent will have the strength to most of the compression is reduced. The increased of compressive and Tension strength as the percentage decrease when replacing cement with fly ash 35 percent up on replacing cement with clay to pull the maximum percentage of 10 bending when replacing cement with clay at a ratio of 10 percent is paid bending. The maximum value of fly ash the flexural increased replace cement in the ratio of 50 per cent are increased the concrete with the most and the last place of cement. As a result of the porosity of the concrete with lower amounts of tightness concrete has increased. Fuzzy logic model is presented for predicting the strength for Flexural and impact by replace Portland cement. The result of the study from experimental case the graph of membership function are present (low medium and high). The results showed that the model Fuzzy Logic. Can be used fuzzy logics to predict as well

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Molecular weight polyethylene composites for high wear resistance under temperature changes and lubricant to apply for use in industrial machinery parts
Molecular weight polyethylene composites for high wear resistance under temperature changes and lubricant to apply for use in industrial machinery parts

The objective of this research is a study to determine optimum forming condition of semi-finished bulk UHMWPE by using ram extruder that obtain maximum yield strength and minimum wear rate for apply to use in area of medical and mechanical application. Experimental extrusion specified forming condition consists of the temperature of 140 150 and 160 ºC and pressure of 3 5 8 and 10 MPa with the temperature exposure time of 30 minutes. After known optimum forming condition of UHMWPE powder thus forming UHMWPE filled with different kind of filler to study and determine optimum weight fraction of various types of filler that affect onto wear resistance property of UHMWPE composites. Result extruded condition at the temperature of 1 5 0 ºC under pressure of 5 MPa with exposure time of 30 minutes is an optimum extruded condition due to specimen shown a maximum yield strength ultimate tensile strength and elongation of 20.43 ± 1.21 MPa 28.33 ± 1.53 MPa and 285.60 ± 6.41 % respectively and obtain minimum wear rate of 3.02  10-9 ± 5.27  10-10 mm3/Nm. Its mechanical properties and wear resistance property higher than imported bulk UHMWPE by 23.3 % and 4.75 times respectively due to the formation of cross-linking are occurred in polymer chain and also its degree of crystallinity is high equal to 61.52%. For bulk UHMWPE IR-spectrum shown a variation peak of carbonyl group (C=O) are occurred that that it indicated the oxidation reaction at the end of polymer chain and tis degree of crystallinity is equal to 53.31% which result to decrease strength of polymer. In the case of UHMWPE filled with filler optimum weight fractions of various types of filler are as follows. 1. The filling of 0.3 wt. % Al2O3 particle size 0.05 μm shown yield strength ultimate tensile strength and elongation of 23.17 ± 3.35 MPa 34.78 ± 2.80 MPa and 229.00 ± 6.09% respectively that its mechanical properties was increased by 18.55% (increasing of ultimate tensile strength). For the wear rate is equal to 2.09  10-9 ± 3.39  10-10 mm3/Nm or its wear resistance was increased by 1.44 times in compared with initial bulk UHMWPE. 2. The filling of 0.4 wt. % Al2O3 particle size 0.3 μm shown yield strength ultimate tensile strength and elongation of 21.93 ± 0.51 MPa 25.40 ± 0.69 MPa and 267.67 ± 22.03% respectively that its mechanical properties was increased by 11.54% (increasing of ultimate tensile strength). For the wear rate is equal to 2.32  10-9 ± 4.78  10-10 mm3/Nm or its wear resistance was increased by 1.30 times in compared with initial bulk UHMWPE. ฉ 3 . The filling of 0.4 wt. % Al2O3 particle size 1 μm shown yield strength ultimate tensile strength and elongation of 23.93 ± 1.89 MPa 26.77 ± 1.20 MPa and 296.54 ± 7.51% respectively that its mechanical properties was increased by 5.83% (increasing of ultimate tensile strength). For the wear rate is equal to 2.14  10-9 ± 3.16  10-10 mm3/Nm or its wear resistance was increased by 1.41 times in compared with initial bulk UHMWPE 4 . The filling of 4 wt. % Al2O3 particle size 5 μm shown yield strength ultimate tensile strength and elongation of 22.57 ± 2.01 MPa 26.31 ± 3.11 MPa and 136.66 ± 11.67% respectively that its mechanical properties was increased by 7.68% (increasing of ultimate tensile strength). For the wear rate is equal to 2.37  10-9 ± 5.71  10-10 mm3/Nm or its wear resistance was increased by 1.27 times in compared with initial bulk UHMWPE

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การใช้เถ้ากะลามะพร้าวเป็นมวลรวมน้าหนักเบาในคอนกรีตบล็อกเพื่อการประหยัดพลังงาน
การใช้เถ้ากะลามะพร้าวเป็นมวลรวมน้าหนักเบาในคอนกรีตบล็อกเพื่อการประหยัดพลังงาน

The objectives of this research are to study the production step proper ratio physical properties mechanical properties thermal insulation and sound insulation efficiency of concrete blocks mixed with coconut shell ash. The ratios of concrete block mixed with coconut shell ash include Portland cement type1: quarry dust: coconut shellash which equal to 1: 6.8: 0.2 1: 6.7: 0.3 1: 6.6: 0.4 1: 6.5: 0.5 and 1: 6.4: 0.6 by weight. Water per cement ratio are 0.6 by weight. The concrete block samples were casted by the general production as same as the ordinary concrete blocks and were tested follow TIS.58. From the results the best amount of coconut shell ash which put into concrete block is 1: 6.7: 0.3 of ratio. The proper ratios of coconut shell ash can decrease the density or weight and increase the thermal insulation and sound insulation efficiency of concrete blocks. However the high amounts of coconut shell ash effect to decrease the mechanical properties concrete blocks that are lower than TIS.58 standard.

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การเพิ่มประสิทธิภาพระบบปรับอากาศรถยนต์ด้วยการซับคูลสารทําความเย็นโดยน้ำที่ควบแน่นจากคอยล์เย็น
การเพิ่มประสิทธิภาพระบบปรับอากาศรถยนต์ด้วยการซับคูลสารทําความเย็นโดยน้ำที่ควบแน่นจากคอยล์เย็น

Currently transport has played an important role in everyday life resulting in huge traffic jams caused by big city streets and pollution problems from global warming to global temperatures are rising. Since humans are creatures that prefer comfort in all areas which contrasts with the higher temperatures of the Earth. Currently the use of air conditioning a lot. To modify the temperature is reduced in the range 2 3 to 25 degrees Celsius makes people feel comfortable. However the use of air conditioning in the car cabin cooling efficiency can be increased to a higher level than it is by cooling the refrigerant. The aim of this research is to test and compare the performance of car air conditioning systems usually equipped with a heat exchanger. Using water from the condensation of evaporator as a medium for heat transfer. By installing the equipment at the outlet of the condenser. This causes the temperature of the refrigerant is low. The pipe lengths in the equipment from the calculation of 1 .2 meters and copper lines that increases the length of the tubes was calculated to compare with a length of 1.6 meters to test the speed of the compressor 1000 1500 2000 and. 2500 rpm and a wind speed of 20 35 and 50 kilometers per hour. The results of experiment found that the temperature refrigerant equipment decreased from an average of 1.6 degrees Celsius the pipe length of 1.2 meters and 1.6 meters of pipe temperature drops 1.8 degrees average temperature attended Eva sufficiently reduced operator. It increases energy efficiency ratio averaged 6.68% of the pipe length 1.2 m and 22.24% at a length of 1.6 meters as well as to increase the coefficient of performance of the air conditioning system. 6 .6 9 % of the pipe length of 1.2 meters and a length of 1.6 meters at 22.4% with the key factor in optimizing the cars air conditioning system. Making the refrigerant from the condenser the temperature drops to pull heat out of the cabin through evaporator higher.

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