จำนวน Repository ( 2131 )
Development of a hydrogen gas purifier for improving the quality of biogas in fermentation process
Hydrogen sulfide (H25 cheap materials activated carbon scraped iron sand cement and rice husks applied to the small scale biogas production at 30 ppm within 6 hours. The filter materials with highest to lowest H48.18 percent respectively. In the medium scale biogas production (20 L) at 30 ppm. Scraped iron and sand mixed with activated carbon filter had the best H(200 L) production of the biogas fermentation (30 ppm biogas product) sand mixed with activated carbon filter at the ratio 60:40 displayed the best performances in removing H2(3 day). It is the most environmental friendliness as well as cost-effective filter for biogas fermentation at scale up sizes at least 20 L. S) is found to be one major serious contaminant to biogas production system. In this research the team aimed to develop a high efficient filter for removing H2S from the biogas reaction. From all 2S absorptivity were activated carbon sand scraped iron and rice husks those accounted for 88.02 76.06 55 50 and 2S absorptivity (100 percent) and sand showed its H2S removal efficiency lower at 65 percent respectively. In larger scale S after incubated for 4.5 hours while scraped iron filter as well as activated carbon filter functioned in H2S removal longer time (2 and 3 days respectively). In order to be able to practically apply for continuous filtering H2S from the continuous biogas production sand mixed with activated carbon filter exhibited long last filtration
Extraction of plastic and aluminum foil from beverage cartons with biological processes
Extraction of plastic and aluminum foil from beverage cartons with biological processes is one environmentally friendly approach that is appropriated for paper recycling. The other remained parts including plastic and foils can thus be utilized. This research aimed to improve the capability in digestion of cellulose paper of microbes isolated and screen from fruit durian and jackfruit in degradation of beverage cartons. In the small scale processes reducing sugar indicating the efficiency of the degradation process of the boxes was released from the hydrolysis of paper and determined by biochemical method of Benedict test. The controls of alkali and water immersion were utilized for these experiments. In the medium and large scale digestion processes the results showed that microorganisms helped separate sheet papers from the plastic and aluminum foils shortly in 14 days after boiling in water for 10 min. The bacteria digestion were well adapted within 14 days and prolonged their high degradability until 28 days. They could degrade the cellulose components better than the fungi with the separation efficiency of 70 percent and 66 percent respectively. Therefore from overall the biodegradation process of microorganisms have a high potential in digestion of various paper products for recycling and can be applied in industrial applications.
การรับรู้เรื่องสิทธิแรงงานเพื่อเตรียมตัวเข้าสู่โลกอาชีพของนักศึกษาคณะศิลปศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
This research aims to study and to promote labor right awareness in career preparation for Liberal Arts Students University Technology of Phra Nakhon. Interview and group discussion were used in this qualitative research. The sample was 12 of senior students from Faculty of Liberal Arts University of Technology Phra Nakhon in second semester of academic year 2016. The research instrument was a structured interview. The results were as follows: 1. All students were aware of labor right awareness in working time 8 hours a day and 1 hour of breaking time on weekdays. 2. Most students were aware of a weekly holiday at least once a week. 3. Most students were aware of the right to sick leave and to go for private business. If their leaves were 3 or more a medical certificate was required. 4. All students were aware of the wages paid to employees were not less than the legal minimum wage. Most students were aware of the payroll calculation that can be calculated by the length of the work and paid per hourly daily or weekly wages. 5. Most students were aware of the need for employers to provide welfare benefits as required by law. It is legal to place an announcement at the workplace of the employees. 6. Most students lacked awareness of the right to compensation in all cases; definition and conditions of compensation to be paid by the employer to the employee in case of termination of employment without offense under Section 119 other than that of other types of payers paid by the employer to the employee. Including normal and special compensation rates. 7. Guidelines to promote labor right awareness were through various media of universities faculties and branches such as websites announcement and including teaching on labor right in relevant fields.
ปัจจัยส่วนประสมทางการตลาดที่มีผลต่อการตัดสินใจซื้อหนังสือเรียนอาชีวศึกษาของลูกค้ากลุ่มเป้าหมาย บริษัท แว่นแก้ว เอ็ดดูเทนเมนท์ จำกัด ในเขตกรุงเทพมหานคร
This research explored the Marketing Mix (4P’s) factors affecting vocational education textbook buying decision of target customerss Wankaew Edutainment Co.Ltd. in Bangkok metropolitan area. The Population in this study are teachers and lecturers belong to vocational schools in Bangkok. The equation used to calculate the unknown sample population at 95% confidence level. The sampling and statistical sample of 400 active research. That have statistics used in this research is the Binary logistic regression. The results showed that with ten issues from three aspects that affect buying decisions. The level of statistical significance was 0.05 The 4P’s product clarified on two issues includes learning plans and test examination for course number 200 as a Microsoft Word file containing a CD and given to the print format four-color throughout. The 4P’s place focused on three issues as books sold through shops in the area close to the Lyceum sales by telesales and distributed E-Commerce system. The 4P’s promotion focused on five issues as counseling services academic and teaching buyer can author textbook buyer invite participants academic buyer have joined academic work and advertising through social media and website
ศักยภาพภูมิปัญญาท้องถิ่นด้านอาหารพื้นบ้านเพื่อเพิ่มมูลค่าพืชท้องถิ่น ของชุมชนแพรกหนามแดง อาเภออัมพวา จังหวัดสมุทรสงคราม
The purposes of this research were to investigate the types of local foods of Praknamdaeng Community and the potential of local wisdom of the community’s traditional foods in the aspect of raw material resources production process commercial production wisdom transfer to collect the knowledge of food ingredients and cooking methods and to study nutritive values of 15 recipes (using INMUCAL-Nutrients program) in Praknamdaeng Community Amphawa Samutsongkhram. This research was conducted by in-depth interviews with 12 local food experts who have lived in six villages of Praknamdaeng Community. Two people per village were purposively selected. The research tools were interview forms a tape recorder and a camera. The data were analyzed by mean percentage and rating scales. The study revealed that 132 types of local foods were found and classified into three groups namely main dish (75%) dessert (15.15%) as well as preserved and processed foods (9.85%). As for the potential in raw material resources all types of traditional foods were at a high level (100%) and in the aspect of the potential in production process all kinds of the foods were also at a high level namely main dish (93.94%) preserved and processed foods (84.62%) and dessert (80%). Furthermore the potential in preserved and processed food’s commercial production was at a high level (53.85%) whereas the potential in dessert’s commercial production was at a moderate level (40%) and the potential in main dish was at a low level (52.53%). From the result of wisdom transfer all types of the foods were at a moderate level including dessert (100%) preserved and processed foods (100%) and main dish (67.67%). As a result of the collection of the knowledge of food ingredients and cooking methods the commonly used meat to cook main dishes were found in the local areas and consisted of cuttle fish tilapia long-whiskered catfish mullet sea catfish sea bass rock cod mackerel bream white bait nile tilapia shakehead fish giant tiger prawn banana shrimp jinga shrimp sea crab and salt mardi crab. Moreover the vegetable ingredients were phak plang (Bacella alba Linn.) cha-kram (seablite) luk sam sip (Asparagus race mosus willd) phak bia (rose moss) nam pung do (Azima sarmentosa Benth) and phak kom hin (Trianthema portulacastrum). Most dessert ingredients were coconut milk palm sugar and granulated sugar whereas the ingredients of preserved and processed foods were fishes shrimps and salt which were used to preserve foods; for example drying salting etc. In addition the findings showed that the main dishes’ cooking methods of six villages were curries with local vegetables including hot and sour soup with phak kom hin (Trianthema portulacastrum) hot and sour soup with cha-kram (seablite) hot and sour soup with phak plang (Bacella alba Linn.) hot and sour soup with tua tob tab (Derris trifoliate Lour.) hot and sour soup with yod prong thalee (queen sago leaf) hot and sour soup with sano (Sesbania javanica Mig.) flower kaeng liang (spicy herb soup) with phak kom hin (Trianthema portulacastrum) kaeng oom (dill soup) with nam pung do leaf and red curry with Nipa palm’s fruit. Nowadays the ready-made curry paste which is available in the market is normally used. If any vegetables used were bitter salty or astringent they would be boiled before cooking. Most of the desserts were boiled ones such as khanom tom (Thai coconut munchkins) khuay buat chi (banana in sweet coconut milk) buat fak thong (pumpkin in sweet coconut milk) green beans in light syrup soft sweet sticky rice pudding with young coconut meat and tapioca pearl pudding with young coconut meat. Due to lots of fishes all year-round most of the favorite preserved and processed foods in the community were sun-dried fish and deep-fried marinated fish. Due to study the nutritive values of 15 recipes of local foods of Praknamdaeng Community it was found that cha-kram red curry with cockle provided highest energy (2578.59 kcal) highest fat (196.29 g) highest iron (74.35 mg.) highest Vitamin B1 (0.70 mg) and highest Vitamin B2 (2.76 mg) respectively. Cha-kram Jam provided highest carbohydrate (347.76 g). Steamed tilapia curry in banana leaves with cha-kram provided highest protein (135.15 g) highest Vitamin C (65.65 mg) and highest Niacin (24.73 mg) respectively. Nam Pung Do scrambled egg provided highest Vitamin A (736 µg RE). According to sensory evaluation test on appearance color odor taste texture and preference of 15 recipes of Praknamdaeng’s local foods the result of taster acceptability test indicated that they highly liked every aspect of 13 recipes while steamed tilapia curry in banana leaves with cha-kram and Cha-kram Jam were accepted between a moderate level and a high level.