จำนวน Repository ( 30 )

การพัฒนารูปแบบความร่วมมือด้านการวิจัยทางวิทยาศาสตร์และเทคโนโลยีสำหรับสถาบันอุดมศึกษาของรัฐ
การพัฒนารูปแบบความร่วมมือด้านการวิจัยทางวิทยาศาสตร์และเทคโนโลยีสำหรับสถาบันอุดมศึกษาของรัฐ

The objectives of this research were to study present problem and barrier factors and the development of science and technology research co-operation model for Thai Public Higher Education Institutions. The samples were 388 executives in 8 Thai Public Higher Education Institutions. The instruments were questionnaire survey executive interviews and query data. Data analysis were statistical and content analysis. It was found that Thai Public Higher Education Institution policy supported the research. These were co-researches co-devices and exchanged expert researcher in knowledge. The successful factors were capitals benefits shared goals quality development and increased researches based research system the expert persons research resources reward and motivation and draft model with 4 elements: structured cooperation research funding support standard and mechanical cooperation and types of unit administration. When the draft model was completed it was brought to Connoisseurship meeting for science and technology research co-operation model for Thai Public Higher Education Institutions.

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การลดฟอสเฟตในน้ำทิ้งจากกระบวนการซักผ้าโดยใช้เปลือกไข่ไก่และเปลือกหอยแมลงภู่
การลดฟอสเฟตในน้ำทิ้งจากกระบวนการซักผ้าโดยใช้เปลือกไข่ไก่และเปลือกหอยแมลงภู่

This research studied the factors that affect the efficiency of phosphate reduction in the wastewater of the washing process with CaCO3 and CaO produced from eggshell and mussel shell. The study found that the optimum condition for adsorption when using CaCO3 from eggshell is to adjust the pH to be equal to 10 take 15 minutes to absorb and add 1 gram of sorbent which can reduce the phosphate content by 25 percent and when changing the adsorbent to CaO the optimum condition for phosphate removal is to adjust the pH to 7 take 15 minutes to absorb and add 1 gram of adsorbent which can reduce the phosphate content by 24 percent. The optimum conditions for adsorption when using CaCO3 from mussel shell were to adjust the pH to 10 take 45 minutes to absorb and add 1 gram of sorbent which can reduce the phosphate content by 25 percent and when changing adsorbents to CaO the optimum condition for phosphate removal is to adjust the pH to 10 take 15 minutes to absorb and add 3 grams of adsorbents which can reduce the phosphate content by 24 percent. In addition when studying the adsorption of impurities in the wastewater such as conductivity turbidity COD and BOD it is found that the optimum reduction conditions can reduce the impurities of the parameters that mentioned above were 19.32 2.60 54.77 and 16.67 percent respectively. CaCO3 and CaO produced from eggshell and mussel shell can be used to absorb impurities in wastewater before releasing into natural water sources.

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การผลิตวัสดุปรับปรุงดินจากเศษอาหารและผักตบชวาด้วยกรรมวิธีดีไฮเดรชั่น
การผลิตวัสดุปรับปรุงดินจากเศษอาหารและผักตบชวาด้วยกรรมวิธีดีไฮเดรชั่น

The purpose of this study is to produce the soil improvement materials from food waste and water hyacinth by using a dehydration process. The experiments were divided into two parts : 1) the study of the optimum temperature and time for converting food waste and water hyacinths to soil improvement materials by determining the temperatures of 100 °C 150 °C and 200°C in the periods of 1 hour 2 hours and 3 hours respectively 2) the study of nutrient content in the materials before and after mixing into the soil for 5 days. The soil used in the experiment was sampled from Sai Ma Subdistrict Nonthaburi Province. The parameters used to evaluate the ability to improve the soil quality were soil moisture pH electro conductivity total nitrogen total phosphorus total potassium and organic matter. The results showed that the optimum temperature for drying the food waste was 150°C for 2 hours and the optimum temperature for drying the water hyacinth was 200°C for 3 hours. When the materials were mixed into soil it found that the soil drainage was improved. Mixing the materials into soil could increase the pH value from 5.2 to 5.4 and increase the electrical conductivity from 0.72 mS/cm to 14.78 mS/cm. Besides the plant nutrients including Nitrogen phosphorus and potassium also increased after adding soil improvement materials.

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ผลของการฝึกตารางเก้าช่องที่มีต่อสมรรถภาพทางกายของนักศึกษา มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
ผลของการฝึกตารางเก้าช่องที่มีต่อสมรรถภาพทางกายของนักศึกษา มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร

The purpose of this research was to 1. To know the effect of practicing the nine squares table on physical fitness of students of Rajamangala University of Technology Phra Nakhon 2. To compare the physical fitness of Rajamangala University of Technology Phra Nakhon students before and after the training by using a nine square table. The population used in this research was students studying physical education. individual sports or team sports in the academic year 2019 who were healthy not sick were able to receive physical fitness tests and practice nine squares of 30 people divided into a control group of 10 people an experimental group that used a nine square grid size 60X60 centimeters amounting to 10 The experimental group used nine squares size 90X90 cm 10 people. The duration of the experiment was 8 weeks 3 days a week one hour each time. Physical fitness tests were performed before the experiment at week 4 and week 8 and the results were analyzed by statistical method mean standard deviation one-way analysis of variance. Repeated one-way covariance analysis The results showed that 1. After 8 weeks of experimentation it was found that the nine squares training of the 60x60 cm grid training group and the 90x90 cm grid training group improved the average 3-minute steps up and down than the control group. significantly at the .05 level. 2. The results of the nine grid training of the 60x60 cm grid training group found that after 8 weeks of experimentation the mean stepping up and down of 3 minutes within the 60x60 cm grid training group was better than before and after 4 weeks of the experiment. There was a significant difference at the .05 level. 3. The results of the nine grid training of the 90X90 cm grid training group found that after 8 weeks of experimentation the mean stepping up and down of 3 minutes within the 90X90 cm grid training group was better than before and after 4 weeks of the experiment. There was a significant difference at the .05 level.

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การพัฒนาผลิตภัณฑ์เปลือกกล้วยน้ำว้าแช่อิ่มอบแห้ง
การพัฒนาผลิตภัณฑ์เปลือกกล้วยน้ำว้าแช่อิ่มอบแห้ง

This research aimed to investigate the suitable method to product osmotically dehydrated banana peels and determine its shelf life as well as consumer acceptation. It was found that the proper method was the slow osmotic dehydration process with 30 40 and 50% of syrup (sucrose solution). This method led to the highest appearance color and flavor scores as accessed by the consumer. Therefore the slow osmotic dehydration process was selected for further study relating to the ratio between salt and malic acid (3:2 3:3 and 2:3 of syrup weight). The result show that no differences in appearance color flavor and texture scores were found among treatments however the sample treated with salt and malic acid in the ratio of 3:3 obtained the highest taste score. Thus the suitable process to produce the osmotically dehydrated banana peels was slow process with salt and malic in the ratio 3:3. According to the shelf life study the sample (100g) packed in metallic foil still compiled with Thai community standard of fruit and vegetable products during 12 weeks of storage under 25-30 °C. In addition the consumers also accepted the selected osmotically banana peel product.

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