จำนวน Repository ( 1852 )

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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ขนมแก่นตะวันลดพลังงาน
ขนมแก่นตะวันลดพลังงาน

Study on Energy – Reducing Jerusalem Artichoke Dessert The objective is to study the basic recipe of Jerusalem Artichoke dessert. And to study the level of sugar consumption in the 5 formulas of Jerusalem Artichoke 0% 25% 50% 75% and 100% By planning a randomized complete block design (RCBD) experiment the sensory quality in terms of appearance color smell taste texture and overall preferences was assessed by a (9 - point preference-scoring tasting method. Hedonic Scale) by a taster of 40 and 80 Who is a student in Food and Nutrition Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon And bringthe information obtained To find the mean (x ̅) analyze the variance (Analysis of Variance ANOVA) and compare the mean difference by means of Least significant Difference (LSD) and Duncans New Multiple Range Test (DMRT). The results were analyzed by a statistical package. From studying the basic recipe of Jerusalem Artichoke Dessert The tasters accepted the basic recipe of Jerusalem Artichoke Dessert the second formula in terms of appearance color smell taste texture and overall preferences. The average score was 8.07 8.08 7.85 7.93 7.98 and 7.98 which were in the medium to high preference level. When it was analyzed the variance and compared the statistical differences. It was found that the appearance color taste and texture The difference was statistically significant at 0.05 level. And overall preferences There was no significant difference at the 0.05 level. From the study of reducing sugar content in Jerusalem Artichoke Dessert Energy - reducing Taster accepted the recipe 75% for appearance color flavor texture and overall preference. With an average score of 8.05 7.93 7.55 7.82 and 7.83 In the level of moderate to very favorable As for the smell The tasters accepted the recipe 50% with an average score of 7.52 being moderate. When the variance was analyzed and statistical differences were compared. It was found that the appearance color smell taste texture and overall preference. There was a statistically significant difference at the 0.05 level.

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ขนมวาฟเฟิลเสริมเมล็ดเจีย
ขนมวาฟเฟิลเสริมเมล็ดเจีย

A study of waffle snacks with chia seeds was aimed at studying the basic recipe of waffle snacks. And to study the appropriate amount of chia seeds added in waffle snacks. The appropriate content of chia seeds added to The four levels were 0 2 3 and 4 percent of the total weight of the ingredients. By using the method of randomized complete block design or RCBD. This RCBD experimental plan will help assess the sensory quality in appearance (fluffy) color smell texture (Soft) and overall preference By using “9-Point Hedonic Scale” method experimental study used 80 people to test the flavor consist of lecturers and foods and nutrition students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. The results were calculated the average to analysis of variance (ANOVA) and compare the mean difference at the confidence level 0.05 by using the method of least significant difference (LSD) and Duncan’s New Multiple Rang Test (DMRT) analyzing by statistical package program. From studying the appropriate amount of chia seeds in waffle snacks. 4 levels were found that the taster accepted 3 percent of the total weight of the ingredients. in appearance (fluffy) color smell texture (Soft) and overall preference liking. With an average score 8.00 7.98 7.90 7.87 8.00 and 7.95 respectively Is at the level that I like very. When analyzing variance and compare the statistical differences in appearance (fluffy) color smell texture (Soft) and overall preference liking. There was a statistically significant difference at level 0.05

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สื่อประชาสัมพันธ์โรงเรียนวัดทรงธรรม
สื่อประชาสัมพันธ์โรงเรียนวัดทรงธรรม

The purposes of this study were to produce media and develop public relations for Wat Song Tham School and study satisfaction of the media used in public relations. The sample group of 50 samples who were teachers students of Wat Song Tham School and others. The statistics to analyze by using percentage average and standard deviation. The results of this study show that the sample group had satisfaction to public relations was the highest level (𝑥̅=4.56) and overall was at highest level including content (𝑥̅=4.66) and presentation (𝑥̅=4.61).

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การประเมินสมรรถนะการป้องกันฟ้าผ่าระบบสายส่งย่อย และสายจำหน่าย ของ กฟน
การประเมินสมรรถนะการป้องกันฟ้าผ่าระบบสายส่งย่อย และสายจำหน่าย ของ กฟน

Design of grounding system to protect against lightning and fault is important for both safety and reliability especially for Metropolitan Electricity Authority (MEA) as mostly Metropolitan Electricity Authority operates on overhead networks. This thesis assesses lightning performance for 69 kV 115 kV overhead subtransmission lines 24 kV distribution line using case study from Metropolitan Electricity Authority. Because of the limitation of the right of way distribution feeders are regularly installed together with subtransmission lines in a single concrete pole. Overhead Ground Wire (OHGW) installed at top of the pole and grounding system in concrete pole protects fault current or direct lightning surge to ground. Metropolitan Electricity Authority has developed lightning protection based on an IEEE standard which uses international data for insulation coordination. As a result reliability of the system is lower than the designed value. This thesis suggests a methodology to improve the performance in order to increase the reliability of subtransmission and distribution lines feeding distribution substations. This thesis recommends installation of addition external ground wire on the outer surface of the concrete pole to reduce top pole voltage and back flashover rate or installation of bundle overhead ground wires to protect shielding failure. As all the case studies presented in the thesis which constitute this thesis are applied to existing systems of Metropolitan Electricity Authority it is expected that the proposed methodologies can be served as useful practical guidelines for lightning performance assessment subtransmission lines and distribution lines of Metropolitan Electricity Authority.

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