Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru <p>วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยราชภัฏเพชรบูรณ์ รับตีพิมพ์บทความวิจัยคุณภาพสูงในด้านวิทยาศาสตร์ เทคโนโลยี วิศวกรรมศาสตร์ ครุศาสตร์ (การสอนวิทยาศาสตร์) โดยมีกลุ่มเป้าหมายคือคณาจารย์ นักศึกษา และนักวิจัยทั้งในและนอกสถาบัน</p> <p>โดยตีพิมพ์ 2 ฉบับต่อปี ฉบับที่ 1 มกราคม – มิถุนายน และฉบับที่ 2 กรกฎาคม – ธันวาคม</p> en-US Scijournal@pcru.ac.th (Asst.Prof.Dr.Sumalee Phimphan) Scijournal@pcru.ac.th (คุณแสงจันทร์ สอนสว่าง) Mon, 02 Jan 2023 00:00:00 +0700 OJS 3.3.0.8 http://blogs.law.harvard.edu/tech/rss 60 Preparing Basic Data for Analysis of Structural Equation Modeling Using AMOS https://so04.tci-thaijo.org/index.php/jstpcru/article/view/258914 <p><strong>Abstract</strong></p> <p> <span class="fontstyle0">Analysis of structural equation models must take data obtained from quantitative<br />observations, save them to Excel or SPSS programs, and before importing structural equation<br />models, basic data must be prepared for accurate analysis and prevent problems from<br />occurring in further analysis. As follows: 1) data size, 2) Checking data skewness and kurtosis<br />of data, 3 ) the suitability of indicators or observable variables, 4 ) instrument quality<br />monitoring, and 5) data irregularities collected.</span></p> <p> </p> Yuth Kaiyawan Copyright (c) 2023 Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru/article/view/258914 Mon, 02 Jan 2023 00:00:00 +0700 The Deep Fried Banana Chip With Lard Mixed Herbs Starter For Extend Shelf Life https://so04.tci-thaijo.org/index.php/jstpcru/article/view/260110 <p> <span class="fontstyle0">This research aims to study the shelf life and changes in chemical physical and sensory quality of the banana chips when deep fried with lard mixed with herbs starter. Herb starter add in lard 30 percent by volume.Raw bananas have been sliced into strips with a thickness of about 1.5 mm, frying with lard mixed with herbs starter temperature of the frying oil is about 190 degrees celsius. Frying time is about 3-5 minutes or until brown yellow. Packed in a transparent zip-lock bag with a silver foil back size 13.0x20.5 cm. The shelf life of 63 days was studied. It was found that the chemical quality such as peroxide values, acid values there was no significant difference (p≥0.05). Physical quality such as crispness, color value as L* a* b* there was no significant difference (p≥0.05). The banana chips were brown yellow. Sensory quality such as texture, color, smell, taste, and total acceptance there was no significant difference (p≥0.05). Therefore, the quality of Banana Chips was corresponding throughout the shelf life. Because lard that is filled with herbs starter, that are high in antioxidants which high against the oxidation. <br /></span></p> Sarote Panyamongkol, Worarat Khayankan Copyright (c) 2023 Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru/article/view/260110 Mon, 02 Jan 2023 00:00:00 +0700 Estrogenic and Antifertility Effects of Pueraria mirifica Collected for 30 Years in Rats https://so04.tci-thaijo.org/index.php/jstpcru/article/view/260646 <p> <span class="fontstyle0">The objective of this study was to investigate the estrogenic and antifertility effects of </span><span class="fontstyle2">Pueraria mirifica </span><span class="fontstyle0">tuber powder collected for 30 years since 1987 (PM) in female rats. There are 2 experiments in this study. The first experiment was the investigation of the estrogenic effects of PM in ovariectomized mature rats by oral feeding with 3 different dosages of PM (25, 50 and 100 mg. /rat/day) for 4 consecutive days compared with the control group (7 rats/group). Uterine wet and dried weight and liquid content were used as the indicators of the estrogenic potency of PM. The second experiment was the investigation on the antifertility effects of PM in mature female rats. In this experiment, the female rats were caged with male at the ratio of 2 females : 1 male ( 10 cages/ group) . Oral feeding of the highest dosage of PM ( from the first experiment) to only the female rats for 14 consecutive days compared with the control group. After 14-day treatment of PM to the females, male rats from both groups were removed and the female rats were left and stayed in each cage for another 21 days. <br />During 21-day of observation : number of pregnant and parturient rats, number of live fetuses delivered were noted. After that, all of the female rats in each group were sacrificed and note that the rats became pregnant or not. If the rats were pregnant, number of embryos IN UTERO were counted and noted. The results were found that PM collected for 30 years still pronounced the estrogenic activities in bilaterally ovariectomized rats as indicated from the uterine wet and dried weight and liquid content were significantly higher than the control group (p&lt;0. 01) . The studies on the antifertility effects of 30th yr. PM in mature female rats revealed that 30th yr. PM was still show contraceptive effect. In this group, rats could pregnant 40 %. <br /></span></p> Wasan Manoruang Copyright (c) 2023 Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru/article/view/260646 Mon, 02 Jan 2023 00:00:00 +0700 Factors of the PRECEDE Model related to household solid waste separation behavior among housewives in Nakhon Chum sub-district, Mueang district, Kamphaeng Phet Province. https://so04.tci-thaijo.org/index.php/jstpcru/article/view/260658 <p>The descriptive correlational study was studied the waste sorting behavior among housewives in Nakhon Chum sub-district Municipality, Mueang district, Kamphaeng Phet Province. Data was collected by using &nbsp;&nbsp;&nbsp;questionnaire from a sample of 314 households. The multi - stage random sampling was used for selecting of the samples. The descriptive statistic and Chi-Square Test were analyzed and reported.</p> <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The results found that 95.54% of samples had a high level of knowledge on waste types and waste separation. 89.81% had an attitude of them towards waste separation were at a good level. 89.17% of samples had waste separation behavior was at a good level. There were three predisposing factors; Age, Educational level and the number of household members related to waste separation behavior of samples. The reinforcing factors related to waste separation behavior of samples were included having the buyers of recyclable waste at home in 1-2 times per month and having been trained on waste separation to add value of waste at the 1 year ago. Finally, the enabling factors were obtaining information news on waste separation from all media and others. All of factors analyzed at the level of statistical significance (p-value &lt; 0.05)</p> <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For the suggestion, increasing the training workshops to housewives on household waste separation with the correct method in solid waste separation. Campaigning about waste separation behavior through various media. Adjusting the attitude towards solid waste separation in the area as continuously. At last, Increasing the number of the recycling shops and setting the waste banks in the community.</p> Napalai Onbangkhen, Wanitcha Kanthasorn Copyright (c) 2023 Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru/article/view/260658 Mon, 02 Jan 2023 00:00:00 +0700 The solution of the diophantine equation forms 24^x+4^y=z^2 and 35^x+4^y=z^2 https://so04.tci-thaijo.org/index.php/jstpcru/article/view/261172 <p>In this paper, we find positive integral solutions of the Diophantine equation <img title="24^x+4^y=z^2" src="https://latex.codecogs.com/gif.latex?24^x+4^y=z^2"> and <img title="35^x+4^y=z^2" src="https://latex.codecogs.com/gif.latex?35^x+4^y=z^2"> Moreover, we proved the Diophantine equation. by creating mathematical tools.</p> Patchara Muangkarn, Sutipong Khamtheang, Cholatis Suanoom Copyright (c) 2023 Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru/article/view/261172 Mon, 02 Jan 2023 00:00:00 +0700 Dietary supplementation of turmeric (Curcuma longa) rhizome and garlic (Allium sativum) powder in laying hen to promote egg production and quality https://so04.tci-thaijo.org/index.php/jstpcru/article/view/261184 <p>Laying hens is an economic animal that can generate income for farmers continuously throughout the year. Farmers want to increase the productivity and quality of eggs safely. Objectives of this study were to compare the quantity and quality of eggs from chickens fed with normal diet and herbals, turmeric and garlic, supplemented diets and analyze group Enterobacteriaceae and Lactic acid bacteria in hen feces. Supplementation of 1% turmeric, 1% garlic and 0.5% turmeric + 0.5% garlic to diet. Twenty-four hens (Roman Brown hybrid) were divided into four groups (control, 1% turmeric, 1% garlic and 1% turmeric + garlic). It was found that group supplemented with 1% turmeric + garlic showed the significantly highest egg production rate, significantly highest parameters indicating the quality of the eggs (egg weight, egg yolk weight, egg shell thickness), and significantly highest color of the yolk (brightness, yellow and red). The group that found the least Enterobacteriaceae and the highest lactic acid bacteria in feces were 1% turmeric + garlic supplementation (125.33 ± 10.12 colony) and 1% garlic supplementation (573.33 ± 101.76 colonies), respectively. Therefore, turmeric and garlic can be used to promote eggs production and quality as well as increase good bacteria in the digestive tract of hens.</p> Duangjai Boonkusol, Monnapa Champathong, Anuchit Wisetphakdee Copyright (c) 2023 Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru/article/view/261184 Mon, 02 Jan 2023 00:00:00 +0700 The Status Notification System of Washing Machine via Verifying Electric Current Method https://so04.tci-thaijo.org/index.php/jstpcru/article/view/261797 <p>This research focuses on developing the notify status system of washing machines via verifying the electric current Method with the following objectives: 1) to alert the washing machine's working status. 2) To increase the convenience of washing machine users. 3) Reduce warranty issues and damage to the washing machine's electronic circuit. Therefore, the researcher has the idea to connect a current monitoring sensor to a microcontroller. To control the operation and monitor the washing machine's operating status. This system can alert the washing machine's operating status. The entire system installation does not alter the electronic circuit and equipment of the washing machine. The results showed that 1) The washing machine operation status can be accurately informed to the user. 2) The user is comfortable using the washing machine and can effectively manage the time to do other activities. Both of these happen because users can check the operating status of the washing machine from the beginning of the process until the end. 3) Since the system's installation has not been modified in any parts of the washing machine, it will not cause warranty problems or damage to the machine's electronic circuit.</p> Phumin Thaoluang, Piyapon Munngam, Jiraphan Muangtan, Thongrob Auxsorn Copyright (c) 2023 Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru/article/view/261797 Mon, 02 Jan 2023 00:00:00 +0700 Development of egg trays from agricultural biomass materials https://so04.tci-thaijo.org/index.php/jstpcru/article/view/261925 <p>The purpose of this research was to produce egg trays from agricultural waste materials and to study the efficiency of developed egg trays. The test was conducted by creating egg trays from agricultural biomass materials such as bagasse, sugarcane leaves and cornhusks. Made and molded into an egg tray by casting method, then dried for 7 days. The efficiency test was divided into 3 parts: Tension Immediate impact by Impact test method and shock impact on egg breakage rate when wrapped in egg tray by Drop test method. Tension cornhusk egg tray can withstand high tensile strength. Due to the dense structure and homogeneous adhesion Therefore, it is stronger and can withstand more tensile strength than bagasse egg trays. The impact test by Impact test found that the energy value of the cornhusk material absorbing force is greater. That is, cornhusk egg trays are more rigid than bagasse egg trays. The impact strength on the rate of breakage of eggs when wrapped in egg trays by drop test method showed that the percentage of egg breakage Bagasse egg trays had a higher percentage of cracking than cornhusk egg trays when released at low height. Compared to the highest emission height, the egg rupture percentage was the same. Therefore, it can be concluded that cornhusks are best used as egg trays.</p> Titima Leetarkool, Thiwarut Khamm, Arisa Wongseekaew, Kantapat Kittiauchawal Copyright (c) 2023 Journal of Science and Technology Phetchabun Rajabhat University https://so04.tci-thaijo.org/index.php/jstpcru/article/view/261925 Mon, 02 Jan 2023 00:00:00 +0700