จำนวน Repository ( 103 )

การประเมินผลลัพธ์ของกิจกรรมรับน้องสร้างสรรค์จากการวิเคราะห์ต้นทุน-ผลได้
การประเมินผลลัพธ์ของกิจกรรมรับน้องสร้างสรรค์จากการวิเคราะห์ต้นทุน-ผลได้

Ministry of Higher Education Science Research and Innovation has declared the policy towards university intiation with creative warm impressive and students’ improvement reinforcement. It is put into effect to every institute strictly. The research is a mixed-methods paradigm in order to evaluate the results of creative initiation by studying the perspectives on activities as well as the effects of creative initiation. Moreover setting the objectives and creative initiation indicators employing cost-benefit analysis are concerned. With simple random 362 undergraduate students of Faculty of Business Administration of Rajamangala University of Technology Phra Nakorn are the participants of this study. The study not only employs descriptive statistics —frequency percentage average and standard deviation— but also takes the focus group interview to collect data. To do so using purposive sampling to get 13-activity-staff as well as 12-activity-participant helps the researchers to analyze data in many dimensions: important issues and brainstorming for creating the next-time activities. The results found that 1. university students’ perceptions on activity was above average (good); such a type of activity was needed and related to the project’s objective 2. university students shared their opinions towards activity’s effects as followed: 1) positive effect is good; the activity caused unity responsibility and people and environment adaptation 2) negative effect is moderate; university students complied to do the activities but the activity’s processes should be improved. This was because various activities affected mental issues. According to previous activities’ cost-benefit analysis of Faculty of Business Administration they found that the cost of “Rak-Rua-Wang” project was the highest because there was high fixed-cost. On the other hand the project “Jit- Ar-Sa-Pha-Nong-Tham-Dee” had the least cost. To conclude internal rate of return modified internal rate of return and net present value of every project tended to increase continuously since university students in different majors involved in the activity increasingly.

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การวิเคราะห์พารามิเตอร์ที่มีผลกระทบต่อความสามารถในการต้านทาน  ของการเจาะทะลุของกระสุนบนผิวเกราะอะลูมิเนียมด้วยระเบียบวิธีไฟไนต์เอลิเมนต์
การวิเคราะห์พารามิเตอร์ที่มีผลกระทบต่อความสามารถในการต้านทาน ของการเจาะทะลุของกระสุนบนผิวเกราะอะลูมิเนียมด้วยระเบียบวิธีไฟไนต์เอลิเมนต์

This research analyzes the parameters affecting the penetrating resistance of shells on the armor surface by the finite element method. In this study the results were compared with real bulletproof armor firing tests and finite element simulations. modeling of bulletproof and bulletproof armor using Solid Works program. Creating and simulating armor firing pattern using ANSYS Explicit Dynamic program. damage test is based on National Institute of Justice (NIJ) level 3 standards with bullets the material of the ammunition is 7.62 mm tungsten carbide (WC). there are two types of bulletproof armor used in this simulation 1) SKD11 2) Aluminum AL7075. The simulations is into 1 category Simulation of stacked armor plates. The sizes of the armor plates are 6 8 and 10 mm and the angles of firing of bulletproof armor are 0 30 and 45 degrees. result of this simulation armor thickness and firing angle are factors of penetration resistance.

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เทคนิคการวิเคราะห์คุณภาพกำไรของบริษัทจดทะเบียนในตลาดหลักทรัพย์แห่งประเทศไทยกลุ่มพลังงานและสาธารณูปโภค และกลุ่มปิโตรเคมีและเคมีภัณฑ์
เทคนิคการวิเคราะห์คุณภาพกำไรของบริษัทจดทะเบียนในตลาดหลักทรัพย์แห่งประเทศไทยกลุ่มพลังงานและสาธารณูปโภค และกลุ่มปิโตรเคมีและเคมีภัณฑ์

The objective of this research is to study the techniques of profit quality analysis and the consistency of the profit quality with different profit quality analysis techniques; and to compare profit sustainability between large companies and small companies of the industrial energy and utilities group and the petrochemical and chemical group. The data is collected from financial statements and data entry forms (Form 56-1) from 2012 to 2018. A total of 47 companies are analyzed using descriptive statistics including mean and standard deviation; and inferential statistics including multiple regression analysis and analysis of the average difference between 2 groups The research found that in the analysis of the profit quality consistency in all 4 methods there were only 13 companies in the energy and utilities group with consistent quality of profits accounting for 39.39%; and 20 with inconsistent results accounting for 60.61%. In the petrochemical and chemical group there was only 1 company with consistent quality in all 4 methods representing 7.14%; and 13 companies with inconsistent quality representing 92.86%. In addition when comparing the profit sustainability between large companies and small companies it was found that there was no statistical difference in profit sustainability (sig = 0.305> 0.05). When comparing the profit sustainability between energy and utilities group and the petrochemical and chemical group it was found that petrochemical and chemical companies had a higher profit sustainability than the energy and utilities group at statistical significance of 0.01 (sig = 0.009 <0.01).

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การวิเคราะห์การผสมพลาสติกชีวภาพพอลิแลคติกแอซิดและเทอร์โมพลาสติกสตาร์ช
การวิเคราะห์การผสมพลาสติกชีวภาพพอลิแลคติกแอซิดและเทอร์โมพลาสติกสตาร์ช

This research was concentrated on characterized mechanical properties and adjusted compatibility of poly (lactic acid) (PLA) with thermoplastic starch (TPS) as biodegradable polymers composites. PLA was blended with TPS at the proportion of 10 20 30 50 and 70 wt% as well as 2 phr chain extender by an internal mixer at 200°C. The blended materials were then injection molded at 230°C. Tensile testing showed that as the amount of TPS increase the elongation at break tended to increase but the tensile strength and modulus tended to decrease. The morphology was investigated by scanning electron microscope. It was found that distinct phase between PLA and TPS was observed. Yet adding the chain extender clearly improved the compatibility between PLA and TPS. The blended materials were also analyzed by differential scanning calorimetry method to study thermal properties. It was found that as the amount of TPS increased the glass transition temperature (Tg) melting temperature (Tm) and cold crystallization temperature (Tcc) deceased. Additionally chain extenders did not affect thermal properties. The thermal stability of the composites decreased when increasing the amount of TPS because of the degradation of TPS in PLA. However when heated at 100ºC for 1 hr the PLA sample bent while TPS did not bend. When PLA was mixed with TPS the composite was bent according to adding TPS.

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การวิเคราะห์ศักยภาพของผู้ประกอบการเสื้อผ้าสำเร็จรูปชาวไทย ด้านการแข่งขันและการสื่อสารการตลาดเชิงบูรณาการผ่านเครือข่ายสังคมออนไลน์ในตลาดอาเซียน
การวิเคราะห์ศักยภาพของผู้ประกอบการเสื้อผ้าสำเร็จรูปชาวไทย ด้านการแข่งขันและการสื่อสารการตลาดเชิงบูรณาการผ่านเครือข่ายสังคมออนไลน์ในตลาดอาเซียน

Thailand is one of the few countries in the world that provides the whole value chain of the textile industry with over 4700 local textile producers and 800000 to one million workers making this industry the second-most important employment sector. In 2016 the industry’s export revenue was valued at almost USD 7 billion contributing to over 3% of total exports. The Association of Southeast Asian Nations (ASEAN) is the biggest international market for Thailand clothing export (23%) and expected to become the worlds fourth largest market by 2030. However Thai cloth entrepreneurs are facing major problems that demand attention including labour costs new design and product development and in particular online marketing. The Thai fashion and textile industries should define a clear strategic move through integrating textile with fashion with a view “toward sustainable creative industries with strong soft power”. The purpose of this study is to analyse competitiveness of Thai cloth entrepreneurs in relation to online management and integrated marketing communications (IMC) in the ASEAN market. The research instrument involves a descriptive cross-sectional mixed-method study in Thailand. For quantitative data 60 cloth entrepreneurs are invited to complete a questionnaire before and after our “online management and IMC” training programme and a qualitative in-depth interview study is conducted with 10 cloth entrepreneurs. The 2017 survey returned 100% participation with general agreement that a website and Facebook are the most important IMC tools for online marketing in the ASEAN market. Before training the participants had knowledge and skills regarding the ASEAN Free Trade Area (AFTA) online communication and social media tools in intermediate level while they had less knowledge and skills concerning social media web design and online gallery. After training the statistics show an increase in entrepreneurs’ level for all knowledge and skills. Furthermore the findings from in-depth interviews show that with regard to entrepreneurial competitiveness in relation to the ability of online management and IMC there is a requirement for further training and government support. In addition the 10 cloth entrepreneurs agree that time management and quality of product and service control are very important for online business.

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