จำนวน Repository ( 3611 )

Design of the printed loop antenna for HF-RFID system
Design of the printed loop antenna for HF-RFID system

In this paper the printed loop antenna is proposed for high frequency radio frequency identification (HF-RFID) systems (13.56 MHz). The proposed antenna is designed on the printed circuit board (PCB). The antenna structure consists of printed semi-spiral loop with rectangular structure patch at the middle of loop. It can provide the magnetic field distribution to cover the operating area with various directions that can improve the communication performance between reader and various tag orientations. From the measured results the proposed antenna has more efficient than the printed spiral loop antenna

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การออกแบบชุดสตรีมีครรภืเพื่อการสวมใส่หลายโอกาส
การออกแบบชุดสตรีมีครรภืเพื่อการสวมใส่หลายโอกาส

The objective of this research was to design the maternity clothes on various occasions and to explore the satisfaction of wearing the maternity clothes among pregnant women. The methodology is begin with designing the maternity dress with five collections. For each collection has three ind of particular maternity dresses. All of them will be sent to a specialist for decide and pick up the best one of each collections. Then the best of them is going to be cut out and bring to ask the satisfaction. A sample of this Quasi Experimental Research were drawn from 200 of the pregnant women with over 3 months of gestational age in Chonburi Hospital and Somdej Sriracha Hospital. They will tend to have a shape enlargement of Breast Lumbar Wrist and Ankle swelling. The researchers used data analysis with statistic of Percentage and Mean. The study showed that the pregnant women who have 13 to 24 weeks of gestation are in the majority of samples. They have ages 26 to 30 years with low level of undergraduate education degree. Most of them are doing a personal job and have a monthly income of 15000 to 20000 THB. The reasons of purchasing maternity cloth are colorful and design with the beautiful pattern. They also provide comment and suggestion that the maternity cloth should add more styles such as Casual dress shirt and pant. So that it can be worn on various occasions.The majority of samples have Mean and the level of satisfaction of all wearing the maternity clothes at High range are second third fourth fifth and the first one has percentage of 3.76 3.69 3.65 3.59 and 3.54 respectively.

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Taxonomy and distribution of the plant family Podostemaceae in  Phitsanulok and Phetchabun provinces, Thailand
Taxonomy and distribution of the plant family Podostemaceae in Phitsanulok and Phetchabun provinces, Thailand

Recent explorations of Podostemaceae have discovered 2 new species to science (Dalzellia TWA-216 และ Hydrobryum TWA-198) from Phitsanulok Province and 3 more genera and six more species from previously known (2 genera and 4 species). Totally five genera and 10 species occur in Phitsanulok and Phetchabun provinces. Based on morphological and molecular evidence the taxa are classified into subfamily Tristichoideae including 2 genera and 3 species (Dalzellia 2 spp. and Terniopsis 1 sp.) and subfamily Podostemoideae consisting 3 genera and 7 species (Hanseniella 1 sp. Hydrobryum 5 spp. and Thawatchaia 1 sp.). The species found in both provinces are Hy. phetchabunense and Hy. tardhuangense while D. kailarsenii is found only in Phetchabun. The plants discovered only in Phitsanulok include Dalzellia TWA-216 Hydrobryum TWA-198 Han. heterophylla Hy. bifoliatum Hy. kaengsophense Th. trilobata and T. minor. Among the species found Hy. tardhuangense and Th. trilobata are also distributed to the Lao PDR and the rests are endemic to Thailand.

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The application of coconut meal, corncob and durian peel as  wood-substituted biocomposites in medium density fiberboard
The application of coconut meal, corncob and durian peel as wood-substituted biocomposites in medium density fiberboard

This research aims to study the application of coconut meal corncob and durian peel as wood-substituted biocomposites in medium density fiberboard. The fiber: urea formaldehyde glue: isocyanate glue with polymeric diphenymethane diisocyanate type (pMDI) ratio is equal to 1: 0.13: 0.003. The fibers are taken from coconut meal corncob and durian peel that 7 ratios are used to all of fiber mixing. The fiberboard production use 130?C of temperature with 20 – 50 kg/sq.cm of compressive pressure with 8 minutes per piece of rate. Their fiberboards have 603 – 856 kg/m of density that was tested follow the TIS 876-2547 standard. Resulting the MM33 ratio (coconut meal fibers: corncob fibers: durian peel fibers is equal to 0.33: 0.33: 0.33) and the CC50 ratio (coconut meal fibers: corncob fibers: durian peel fibers is equal to 0.50: 0.25: 0.25) can pass the standard in physical properties and mechanical properties. Moreover their fiberboards have good thermal insulation

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การพัฒนารูปแบบสินค้าค้างสต็อก
ประเภทเสื้อผ้าสตรีเพื่อจาหน่ายเป็นผลิตภัณฑ์ใหม่
การพัฒนารูปแบบสินค้าค้างสต็อก ประเภทเสื้อผ้าสตรีเพื่อจาหน่ายเป็นผลิตภัณฑ์ใหม่

The aims of this study are (1) the adapting of women’s wear in holding inventory to a new product (2) the study of the satisfactions of women who are 25-35 years old in Bangkok about the adapted women’s wear in holding inventory. The tools for study are the questionnaires and the prototypes to accidental survey 302 women who are 25-35 years old in Bangkok and being the members from buying products of Boutique Newcity Public Co. Ltd. The fist of methods sketching of the adapted holding inventories (shirts skirts and pants) with Ruffles Godets and Transfer Printing to selection by the 5 specialists. Then adapting the top 5 selected styles. Finally surveying and analysis of the samples with percentage mean and standard deviation. The result of the study shows that most women from the sampling are single and have education in Bachelor Degree. Their occupations are in private sector with salary range between 10000 –20000 bath. Their favourite shopping place of women’s wear is department stores and buying of top 3 are pants dress and blouse. The first reason for them to buy the products is the interesting design. The overview of adapted products shows skirts are the first favourite with mean value of 3.13. Shirts are the second favourite with mean value of 3.09 and pants are the last favourite with mean value of 3.07. The conclusion of the developed women’s wear are favoured medium level.

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