VRU Research and Development Journal Science and Technology 2019-09-09T11:41:39+07:00 ผศ.ดร.มนัญญา คำวชิระพิทักษ์ Open Journal Systems <p>A journal to be a medium for disseminating research papers in science and technology. To researchers and general people Promote cooperation in exchanging opinions, knowledge, experience in science and technology research between institutions.</p> <p>ISSN 2351-0366 ( Print )</p> FULL PAPER 2019-09-09T11:41:39+07:00 สถาบันวิจัยและพัฒนา มรภ.วไลยอลงกรณ์ ในพระบรมราชูปถัมภ์ <p>-</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## VRU Research and Development Journal Science and Technology 2019-08-28T16:18:45+07:00 สถาบันวิจัยและพัฒนา มรภ.วไลยอลงกรณ์ ในพระบรมราชูปถัมภ์ 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## A SURVEY OF TREE IN VALAYA ALONGKORN UNIVERSITY UNDER THE ROYAL PATRONAGE, PATHUM THANI 2019-08-28T15:15:10+07:00 มัทนภรณ์ ใหม่คามิ พรรณวิภา แพงศรี วัฒนา อัจฉริยะโพธา ตีรณรรถ ศรีสุนนท์ พิมพ์นารา นิลฤทธิ์ นฤมล ธนานันต์ <p>Valaya Alongkorn Rajabhat University under the Royal Patronage, Pathum thani is an educational institute that plants varieties of plant in order to shade, landscape and increase green space to the urban area. Moreover, the university has been operating on Plant Genetic Conservation Project under the Royal Initiation of Her Royal Highness Princess Maha Chakri Sirindhorn (RSPG) as an RSPG Coordination Centre. Consequently, there was the survey project of type and number of trees in the university in order to increase the fundamental information of plants that can be applied in other related fields. The method was a survey around the area and a study plant morphology for plant identification. The survey result demonstrated that in the university consist of the tree both planted and naturally grown 23 families 65 species. The kind of tree in FABACEAE was found the highest 13 species. The subordinate kind of plant was BIGNONIACEAE and MORACEAE that found 7 species. The exploration area was divided into 5 area. It showed that the area from the athletic stadium to the staff accommodation was found the greatest of tree species. The tree was detected 43 species from all 65 species. The entire area of the campus, Gloden shower (<em>Cassia fistula</em> L.) was a tall plant that the largest number found. It was found 447 trees because the plant was the university symbolic tree. Chinese banyan (<em>Ficus microcarpa</em> L. f.) was a medium plant-large that the largest number found because these trees are densely planted due to popular for fence and along the street. It was found 1,532 trees. The tree was capable of shading, landscaping and consuming fruit. Importantly, these plants were also a part of the various learning and teaching that related to plant and landscape. Furthermore, the plant was able to create a knowledge, understand and consciousness of plant diversity conservation to the people, staff and students in the university.</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## WIRELESS REMOTE CONTROLLED DEVICES IN ELECTRICAL EQUIPMENT FOR MUTILATOR AND OLDER PERSON WITH MOBILE PHONES 2019-08-28T15:16:22+07:00 โยษิตา เจริญศิริ ชุมพล ปทุมมาเกษร เฉลิมพล แก้วเทพ คนึงนิต ปทุมมาเกษร <p>The objective of this research is to develop and design the wireless power control device by using mobile phone for the disabled people, the elderly, and the general public. <br> The researcher has analyzed and developed the system by studying the requirements from users in order to develop the mobile application for controlling electrical device. Then, <br> the measured results are collected. The expert has advised and evaluated the suitability and efficiency of device. Then, device has been taken to test the user satisfaction. It is found that the expert opinion on the suitability of device in the ability to work is very good level ( &nbsp;<img title="\bar{X}" src="\bar{X}">= 4.40, SD. = 0.49). The overall accuracy of device is very good level (<img title="\bar{X}" src="\bar{X}">&nbsp;= 4.43, SD. = 0.51). In terms of design and usage are very good level ( <img title="\bar{X}" src="\bar{X}">&nbsp;= 4.24, SD. = 0.50). The overall user satisfaction is <br> very good level ( &nbsp;<img title="\bar{X}" src="\bar{X}">= 4.71, SD. = 0.44). When considering each aspect, it is found that all aspect has very good evaluation results.</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## URBAN WASTEWATER TREATMENT WITH PHOSPHORUS CONTAMINATION BY SOIL FLOODING 2019-08-28T16:06:52+07:00 ณัฐกร อินทรวิชะ ภาณุชัย ประมวล <p>The objective of this research was to study the effect of phosphorus concentration on urban wastewater treatment. The experimental design of this study was 3x4 Factorial in Completely Randomize Design with 3 replications and there were 2 experimental factors in this research; phosphorus concentration and flooding period. The first factor was phosphorus concentration, there were 4 levels of phosphorus concentration in synthetic wastewater with 200 mg/L glucose; 0, 5 and 10 mg/L, respectively. The second factor was flooding periods, there were 4 levels of flooding period; 0, 1, 3 and 5 days, respectively. The soil sample for this experiment was collected from Bang-Khonthi district, Samut-Songkhram province.</p> <p>The result shown as, the chemical oxygen demand was quite decreased depended on flooding periods with highly significant (P&lt;0.01). There had not found the interaction between phosphorus concentration and decreasing of the chemical oxygen demand in synthetic wastewater (P&lt;0.05). Besides that, this experiment could reduce phosphorus concentration in synthetic urban wastewater, were not over 2 mg/l since the 1<sup>st</sup> flooding day.</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## BIODIESEL FROM BLACK ACID OIL USING KOH AND FE2(SO4)3 CATALYSTS 2019-08-28T16:07:54+07:00 สมสุข ไตรศุภกิตติ พรพิมล พลคำ วัชรา เสนาจักร์ จอห์น มอร์ริส <p><em>Thailand uses palm oil as a raw material for biodiesel, but palm oil production does meet the biodiesel demand. This study examined the production of biodiesel from black acid oil, using KOH and Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> as catalysts. We determined conditions such as the methanol to black acid oil volume ratio, reaction temperature, reaction time and catalyst loading that would optimize biodiesel yield. We found that the optimum yield of biodiesel occurred with methanol to black acid oil volume ratio 5:1; reaction at 70</em><em>°</em><em>C for 120 min; with 1.5 wt% of KOH and 1 wt% Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> loading. The biodiesel yield was 87.5% using KOH and 70.0% using Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3 </sub>catalysts</em><em>. </em></p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## LOW-TEMPERATURE POTTERY MADE FROM LIGNITE FLY ASH AND THALEKAEW CLAY IN PHITSANULOK PROVINCE 2019-08-28T16:09:05+07:00 ทนารัช จิตชาญวิชัย <p>This research aimed at studying the properties of the raw material and physical properties of clay mixed with lignite fly ash and Thalekaew clay in the production. Lignite fly ash is the remain of coal used in electricity production. Thalekaew clay has a good quality and can be used in the production of low temperature pottery. This research applied the mixing ratio all ingredients by base line diagram to get ten ingredients. Then test pieces were formed by press archetype. The physical characteristics of the clay were examined before burning. After that the sample was burned at a temperature of 1100 <sup>0</sup>C in both atmosphere (oxidation and reduction). Then, the characteristics of archetype were examined. The results showed that the most average finesse range of both raw materials (lignite fly ash and Thalekaew clay) was 251μ-2 mm. The chemical composition analysis of the lignite fly ash and Thalekaew clay indicated that the percentage of silica oxide was 35.50% and 62%, alumina oxide 18.80% and 18.20%. It was found that the percentage of calcium oxide was 17.30% and zinc oxide 12.90% in lignite fly ash. The results also showed that the first ingredient (mixture with 5 % of lignite fly ash) was the best ingredient of all the atmosphere. In the oxidation atmosphere, it was found that the highest strength was 244.79 kg/cm<sup>2</sup>; the highest density was 2.04 g/cm<sup>3;</sup> and water absorption was 12.60 %. In the reduction atmosphere the results showed that the highest strength was 244.03 kg/cm<sup>2</sup>; the highest density was 1.95 g/cm<sup>3;</sup> and water absorption was 5.47 % with light red color of 6/8 2.5YR all of atmosphere. Therefore, the two atmospheres were chosen to manufacture the products because the properties of the ingredients were equivalent to the properties of earthenware.</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## ASSESSMENT CRITERIA OF GREEN BUILDING MATERIAL : BRICK 2019-08-28T16:10:24+07:00 เลิศชาย สถิตย์พนาวงศ์ ศศิมา เจริญกิจ <p>Research was aimed to develop the basic green building materials assessment criteria regarding to the building materials: brick. The developed criteria was then examined within the three factories. The operations procedure was absolutely analyzed into three steps including the basic assessment criteria development, the 2<sup>nd</sup> step was the validity correcting of indicators followed by the green building bricks criteria assessment testing in the 3<sup>rd</sup> step. The result showed that the appropriate evaluation criteria should be proper by the follow: the focusing on the authorized and sustainable raw materials abundantly found in the local. The qualification criteria should be focus on the specific standard depending on the typical products, the other properties attended to energy and also safety features. The production and transportation were compromised based on the recovery process as well as the reduction of natural resources utilization and greenhouse gas emissions. Lastly, the removal criteria qualified based on waste management provide the non-affective to environmental impact. Moreover, the assessment was evaluated in 3 factories, that plant no.1 (non-standardized), plant no. 2 (standardize processing) and the last 3<sup>rd</sup> factory (standardized), processed the analytical score of 31.25%, 68.75% and 71.87 %, respectively. The overall score of plant no. 1 was less than half of all points. More than half scores of plant no. 2 and 3 were appeared within the term of raw materials, products properties and the removal criteria, whilelowest score was occurred through the production and transportation process. The production and transportation process of those plants should be improve according to the specific indicators leading to the most evaluated assessment passing and further standard certification submission.</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## EFFICIENCY IMPROVEMENT OF ANIMAL FEED MILL WAREHOUSE MANAGEMENT  A CASE STUDY OF ANIMAL FEED MILL 2019-08-28T16:11:39+07:00 อริษา แซ่โค้ว สุธี ประจงค์ศักดิ์ ชัชวาล มงคล สายฝน เสกขุนทด <p>This research aims to efficiency improvement process finished feed warehouse. Case study of animal feedmill. For effectiveness achieve optimal accuracy, quality and working time.The research methodology implements the warehouse operations and apply the IDEF<sub>0</sub> (integration definition for function modeling), Techniques to improve the warehouse processes, principles of layout and the warehouse and ECRS principles. The research instruments for collecting data were Inventory count record, Inventory FIFO systemrecord, the assessment for satisfaction of employees, the statistics used in the research were mean, percentage, and t-test. The research revealed that efficiency in the counting accuracy. After process improved can reduced the errors of data items wrong counted 18.67 items. Increased efficiency 16.52 percent. The efficiency &nbsp;quality after process improved canreduced the errors pay goods is not FIFO average 5 items. Increased efficiency 4.42 percent.The efficiency on timeafter process improved can reduced time the pay goods average 44.92 minutes per vehicle and reduced time 16.24 minutes. Increased efficiency 28.68 percent. The satisfaction of the employees after the development was at high level with 4.83 of mean. The comparison of efficiency result after thedevelopment was higher than before the development at .05 statistically significant level.</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## IMPROVEMENT OF QUALITY AND SHELF LIFE EXTENSION OF THE DRIED YELLOW-STRIPE TREVALLY FISH (SELAROIDES LEPTOLEPIS) BY USING OZONATED WATER 2019-08-28T16:12:58+07:00 ปกรณ์ แสนจิตต์ ชัชวาล มงคล สุธี ประจงค์ศักดิ์ สายฝน เสกขุนทด <p>The objective of this work is to study the effect of concentration of concentration and duration of ozone water in the production of dried yellow fish On microbiological properties during production and storage By studying the total amount of microorganisms naturally contaminated And fresh yellow fish dissected through ozone water immersion At ozone concentrations of 0.5 0.75 and 1 ppm, 3 levels of soaking time were 10, 15 and 20 minutes. Water Activity (Aw) not more than 0.85 from the experimental results It was found that the amount of microorganisms tended to decrease when the concentration of ozone and the duration of ozone immersion increased. The right conditions are The use of ozone water concentration 1 ppm, soaking time 20, makes the microbiological quality of the yellow fish freshly dissected.</p> <p>The shelf life of product with ozone concentration 1 ppm was studied by packing in polyethylene (PE) bags. Compare storage conditions. At room temperature (30 ± 5 ° C), chilled temperature (7 ± 2 ° C) and freezing temperature (-18 ° C). It was found that dried yellow fish that passed 1 ppm ozone concentration at room temperature ( 30 ± 5 ° C) Refrigerated temperature (7 ± 2 ° C) and freezing temperature (-18 ° C) and packed in a vacuum condition can be stored for 45 days. &nbsp;All product packed under different conditions were free from health hazard microorganisms.</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## THE MENTAL HEALTH OF ELDERLY IN CHAIYAPHUM PROVINCE CASE STUDY: NAPHAI SUB-DISTRICT, MUANG CHAIYAPHUM DISTRICT, CHAIYAPHUM PROVINCE 2019-08-28T16:14:28+07:00 ศักดิ์ชาย เพ็ชรตรา มรรยาท เพ็ชรตรา ทัศพร ชูศักดิ์ <p>This descriptive research aims to: 1) study the mental health of the elderly, 2) study the mental health of the elderly, and 3) to study factors that affect mental health in the elderly. The 400 samples used in this study were males and females aged more than 60 years in Naphai sub district, Muang Chaiyaphum district, Chaiyaphum province and during August and December 2557. The tools was a questionnaire survey has two parts 1) general information of the elderly and 2) the test of mental health indicators for Thailand by the Department of Mental Health, Ministry of Public Health. Analyzed data using descriptive statistics i.e. percentage, mean. The inferential statistics to analyze the relationship and effected between personal factors and mental health indicators were used Chi-square method and Stepwise Multiple Regression Analysis.</p> <p>The results showed that: The most of mental health levels of elderly in lower than the general citizen 74.00%. The factors associated with the depression (P &lt;0.05) were &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1) personal factors i.e. sex, age, marital status and education, 2) family and economic factors i.e. average income per month, source of income, enough of income and 3) health factors i.e. congenital disease. The factors that effect of the depression in the elderly with statistically significant i.e. age, main source of income, congenital disease and a amicable relationship family with That could predict depression in elderly 24.20 percent statistically significant (P &lt;0.001).</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## BIOMASS GASIFIER PRODUCES PRODUCER GAS FOR CERAMIC KILN 2019-08-04T18:43:43+07:00 กฤษฎางค์ ศุกระมูล อุชา โพธิ์สุวรรณ กฤตยชญ์ คำมิ่ง กิตติโชติ ศุภกำเนิด <p>Biomass energy, one of the alternative energy which reduces fossil fuels is interesting, can be used to biomass fuel and dispose agricultural materials. Thailand is an agricultural country, there is a lot of biomass fuel, so it is appropriate to study the usage of biomass. Up-draft gasifier was designed in cylindrical combustion chamber. Producer gas obtained from burning in a biomass gasifier is hydrogen and carbon monoxide. It is used as fuel to burn clay products in ceramics kiln. The size of the combustion chamber is 0.77 meters wide, 0.8 meters long and 0.78 meters high, burned the clay products in the amount of 100 kilograms/day. The capacity of the biomass fuel tank is 0.086 cubic meter. From the study of the production of producers gas from the updraft gasifier using corncob, straw and bagasse as fuel, which are the agricultural waste of the community, Tha Maka district, Kanchanaburi province. To find out the heating value by using a bomb calorimeter indicated that the corn cob has the highest heating value of 9,013.958 kJ/kg. The community, Tha Maka district, Kanchanaburi province had a better choice to use corn cobs as fuel for ceramics kiln in the community to replace LPG. Burning clay products during the burning process the kiln can store heat well and save energy. The products have a uniform color. The color of the product is reddish orange. Burn with oxidation atmosphere at 850 degrees Celsius, the burning period was 6 hours.</p> 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement## คำแนะนำการเตรียมต้นฉบับ 2019-08-31T18:20:32+07:00 สถาบันวิจัยและพัฒนา มรภ.วไลยอลงกรณ์ ในพระบรมราชูปถัมภ์ 2019-08-04T00:00:00+07:00 ##submission.copyrightStatement##