Faculty and Institute (คณะและสถาบัน): Recent submissions

Now showing items 1361-1380 of 3484

    • A Study an optimum casting condition for manufacturing jewelry setting of white gold alloy 6k 

      Jakchaikul, Suraphon; สุรพล จักรชัยกุล (2018-09-22)
      This Research is to Study the Development of 6k White Gold Alloys for Jewelry Production.The Optimum Conditions for Casting Jewelry and Jewelry were Investigated. The Results of the Experiments Show that the Chemical ...

    • The study of composition of white gold alloy 6k element onto physical properties for jewelry setting manufacturing 

      Chaysiri, Awut; อาวุธ ฉายศิริ (2018-09-22)
      This Research is to Study the Development of 6k White Gold Alloys for Jewelry Production. By Studying the Influence of 6k White Gold Alloys on Physical Properties for Jewelry Molding Process. Of 6k Gold Alloys at Various ...

    • A Study direction milling affecting surface roughness by the Taguchi method 

      Chomsamutr, Kompan; Cherdchoongam, Sukanya; คมพันธ์ ชมสมุทร; สุกัญญา เชิดชูงาม (2018-09-22)
      A Study direction milling affecting surface roughness by the Taguchi method with a 10 mm. bite milling cutter, the direction of milling is clockwise, G41 and counter clockwise milling. G42 is intended to measure the milling ...

    • Rotaring bending fatigue testing machine 

      Jiraprasertwong, Pichet; Jumroonrut, Sutthipong; Thangchitpianpol, Pirom; พิเชฐ จิรประเสริฐพิเชฐ; สุทธิพงษ์ จำรูญรัตน์; ภิรมย์ ตั้งจิตเพียรผล (2018-09-22)
      The purpose of this research was to construct the rotating bending fatigue testing machine for metal material to find out the built-in machine performance and compare it with machines that meet international standards. ...

    • The reduce effect of lightning on transmission line 

      Rugthaicharoencheep, Nattachote; Chalangsut, Aroon; นัฐโชติ รักไทยเจริญชีพ; อรุณ ชลังสุทธิ์ (2018-09-22)
      Most of Metropolitan Electricity Authority (MEA) electric power system is using overhead line. It is 94% in the system including subtransmission, distribution and low voltage system. All of them were installed on concrete ...

    • Analysis of voltage sags on the installation of distributed generation in the distribution system 

      Chalangsut, Aroon; Rugthaicharoencheep, Nattachote; อรุณ ชลังสุทธิ์; นัฐโชติ รักไทยเจริญชีพ (2018-09-22)
      This research presents an Analysis of Voltage Sags on the Installation of Distributed Generation in the Distribution System. The computer program PSCAD/EMTDC (Power Systems Computer Aided Design / Electromagnetic Transient ...

    • Application of KNN approach for stock trading strategy 

      Chigusin, Suchira; สุจิรา ไชยกุสินธุ์ (2018-09-16)
      การวิเคราะห์ข้อมูลการซื้อขายซึ่งประกอบไปด้วย ราคาปิด ผลต่างของราคาปิด ผลต่างของปริมาณการซื้อขาย ผลต่างของดัชนี SETIndex, NYMEX crude oil และ DJIA โดยใช้ข้อมูลที่มีช่วงเวลาเป็นวันและข้อมูลผลต่างจะใช้ข้อมูลวันที่คานวณกับข้ ...

    • Community technology for development of interlocking block product from basalt fragments 

      Luangsod, Somchai; Khamput, Prachoom; Namarak, Charin; Pradmali, Sajjachan; สมชาย เหลืองสด; ประชุม คำพุฒ; ชรินทร์ นมรักษ์; สัจจะชาญ พรัดมะลิ (2018-08-26)
      This research aims to study the using basalt rock fragments to develop as interlocking block product. The mixture ratios of Portland cement type1: basalt rock fragments are 11 : 6, 1 : 6.5, 1 : 7, 1 : 7.5 and 1 : 8 by ...

    • Development of cement-bonded fiberboard product from oil palm fiber for community enterprise 

      Sanyawuth, Thanan; Khamput, Prachoom; Pradmali, Sajjachan; Lregpiboon, Aukkadet; ธนันท์ ศัลยวุฒิ; ประชุม คำพุฒ; สัจจะชาญ พรัดมะลิ; อรรคเดช ฤกษ์พิบูลย์ (2018-08-26)
      This research aims to study the using oil palm fiber to develop cement-bonded fiberboard product. The mixture ratios of Portland cement type1: fine sand: oil palm fiber:tap water: catalyst are 1 : 1.95 : 0.05 : 0.40 : 0.03, ...

    • An efficient analysis of rice prices and yields in Thailand using optimal functions for seasonality and trend in time series models 

      Jiraprasertwong, Pichet; Thangchitpianpol, Pirom; พิเชฐ จิรประเสริฐวงศ์; ภิรมย์ ตั้งจิตเพียรผล (2018-08-26)
      This research aims to apply the principle of stochastic process for modeling. The parameters are estimated using Bayesian methods. The monthly average real price of paddy rice 15% and yield of paddy rice in Thailand were ...

    • Detection of defective machines in auto parts factories using bayesian hidden markov models 

      Tongkhow, Pitsanu; พิษณุ ทองขาว (2018-08-26)
      The objectives of this research are to propose a proper model for detecting defective machines in auto parts factories, to apply the proposed model to the defective product data, and to investigate the factors influencing ...

    • Risk assessment for drought in Thailand using hidden markov models 

      Sangma, Watcharin; Tongkhow, Pitsanu; วัชรินทร์ แสงมา; พิษณุ ทองขาว (2018-08-26)
      The objectives of this research are to propose a proper model for risk assessment for drought in Thailand. A hidden Markov model is adopted. The results indicate that the amount of rainfall depends on the hidden states, ...

    • An efficient influence analysis in main economical crop yields in central area of Thailand using mathematical models 

      Tongkhow, Pitsanu; Lekdee, Krisada; พิษณุ ทองขาว; กฤษฎา เหล็กดี (2018-08-26)
      The objectives of this research are to propose an approate and efficient model for analyzing rice, corn, and sugar yields data. A linear mixed model (LMM) with spatial correlation following the conditional autoregressive ...

    • Production of the pseudo-plywood from polyethylene mixing with oil palm fibers for community enterprise 

      Luangsod, Somchai; Khamput, Prachoom; Lregpiboon, Aukkadet; Pradmali, Sajjachan; สมชาย เหลืองสด; ประชุม คำพุฒ; อรรคเดช ฤกษ์พิบูลย์; สัจจะชาญ พรัดมะลิ (2018-08-26)
      This research aims to study the using oil palm fiber to develop pseudo-plywood from polyethylene product. The mixture ratios of oil palm fiber : polyethylene are 50 : 50 , 55 : 45 , 60 : 40 , 65 : 35 and 70 : 30 by weight. ...

    • Development of ceiling board product from oil palm fiber for community enterprise 

      Ritthong, Wirote; Khamput, Prachoom; Makaratat, Nattapong; Pradmali, Sajjachan; วิโรจน์ ฤทธิ์ทอง; ประชุม คำพุฒ; ณัฐพงศ์ มกระธัช; สัจจะชาญ พรัดมะลิ (2018-08-26)
      This research aims to study the using oil palm fiber to develop ceiling board product. The mixture ratios of Gypsum plaster: oil palm fiber: tap water: catalyst are 1 : 0.15 : 1: 0.03, 1 : 0.20 : 1: 0.03, 1 : 0.25 : 1: ...

    • A study of the lifted-up hood prototype for pedestrian protections 

      Suwantaroj, Kullayot; Lakkam, Supachai; กุลยศ สุวันทโรจน์; ศุภชัย หลักคำ (2018-08-26)
      Nowadays, car is one of important factors for the human life whereas critical traffic dramatically effects on risk of accident between cars and pedestrians. Therefore, the road accident is the enormous loss of human ...

    • A comparison of the natural fibers to produce automotive interior parts 

      Boonme, Polrut; Lakkam, Supachai; พลรัชต์ บุญมี; ศุภชัย หลักคำ (2018-08-26)
      This research aims to compare the mechanical properties of materials made from hyacinth, pineapple and sugarcane fibers, and also to study the feasibility of producing automotive interior parts from natural fibers. The 9 ...

    • Performance measurement faculty of engineering RMUTP for digital university 

      Udomraksasakul, Chalakorn; ชลากร อุดมรักษาสกุล (2018-08-26)
      The objective of this research work was to arrange a performance measurement for finding factors which will have influence on the capacity of Faculty of Engineering, Rajamangala University of Technology Phra Nakhon, leading ...

    • Community technology for development of paving block product from basalt fragments 

      Sanyawuth, Thanan; Khamput, Prachoom; Pradmali, Sajjachan; Tawonwan, Tanyaboon; ธนันท์ ศัลยวุฒิ; ประชุม คำพุฒ; สัจจะชาญ พรัดมะลิ; ธันยบูรณ์ ถาวรรวรรณ์ (2018-08-26)
      This research aims to study the using rock fragments of basalt mining to develop paving block product. The mixture ratios of Portland cement type1: basalt rock fragments: tap water are 1 : 4 : 0.45, 1 : 4.5 : 0.45, 1 : 5 ...

    • Community technology for development of light-weight concrete block product from basalt fragments 

      Pradmali, Sajjachan; Khamput, Prachoom; Makaratat, Nattapong; Jenjirapanya, Supichart; สัจจะชาญ พรัดมะลิ; ประชุม คำพุฒ; ณัฐพงศ์ มกระธัช; สุภิชาติ เจนจิระปัญญา (2018-08-26)
      This research aims to test the properties of concrete block mixed with basalt fragment as aggregates in products. The mix ratios of Portland cement type1 : basalt fragment : water are 1 : 10 : 0.7, 1 : 10.5 : 0.7, 1 : ...