• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2008년도 정보통신설비 학술대회
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• pp.283-286
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• 2008

This article describes developments in fiber to the home (FTTH), and introduces the technical reviews for the various types to realize FTTH. Also, we have presented the results of each EPON, GPON and WDM-PON standardization by each IEEE, ITU-T and TTA. Finally, based on the above results, we proposed the trend of FTTH service deployment strategies.

• 한국가정과교육학회지
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• 제28권3호
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• pp.65-77
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• 2016

본 연구의 목적은 중학교 기술 가정교과 의복재료 단원에서 실물 교육자료집을 좀 더 적극적으로 활용하여 의복재료에 대한 학습자의 흥미와 이해를 높이고자 물리적 섬유감별방법이 들어간 탐구활동지를 개발하는데 있다. 이를 위해 중학교 2학년 수준에 적합한 물리적 섬유감별 방법을 개발하였으며, 이를 실제 수업에 적용하고 그 효과를 분석하였다. 연구 결과 양모와 아크릴, 견과 폴리에스터를 비교하는 물리적 섬유감별방법을 개발하였으며, 이를 활용하여 탐구활동지를 개발하였다. 탐구활동지를 수업에 활용한 실험 집단과 사용하지 않은 통제 집단의 학습흥미도, 학습수용태도, 학업성취도를 비교 분석한 결과, 탐구활동지를 사용한실험집단이 통제 집단보다 모두 높은 점수를 보였으며, 유의미한 차이가 있음을 알 수 있었다. 따라서 본 연구를 통해 제작된 섬유감별방법과 탐구활동지는 의복재료에 대한 학습자의 이해를 촉진시켜줄 뿐 아니라, 의복재료에 대한 정보를 학습자에게 제공함으로써 학습자가 실생활에 적용할 수 있을 뿐 아니라 학습자의 자기 주도적 학습을 촉진할 수 있는 것으로 생각된다.

• 대한가정학회지
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• 제33권1호
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• pp.181-186
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• 1995

This study was carried out to know the proper pearling ratio for maximum utilizatio of barley diet fiber, especially bata-glucan. Beta-glucan content were 2.35%, 2.72% and 3.24% in pearling ratio of 75%, 70% and 65%, respectively, which means the lower of pearling ratio, the more chance for use of beta-glucan. The embryo was completely removed from barley grain in 65% pearling but it was partially removed or not removed in pearling ratio of 70% and 75%, respectively. Total diet fiber content was higher at 75% pearling ratio while beta-glucan content was the lowest. The higher level of total diet fiber in lower pearling ratio was due to relatively higher content of insoluble diet fiber. The difference of soluble fiber due to pearling ratio was negligible diet fiber. The difference of soluble fiber due to pearling ratio was negligible, however, bata-glucan content was higher in higher pearling ratio. The results implied that it is better way to lowering perling ratio for miximum use of bata-glucan in barley.

• 대한가정학회지
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• 제36권1호
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• pp.117-128
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• 1998

This study examined the relationships between textile fiber preference(natural, synthetic, blended) and the perceived importance of textile properties, knowledge of textile fibers and demographic variables, focused on children's outdoor clothing. Subjects were 291 mothers with preschool children. Data were collected using a self-administered questionnaire and analyzed using analysis of variance and crosstabulation analysis. The results indicated that; (1)preference of fiber was significantly related to the perceived importance of textile fiber properties concerning flame resistance, absorbency, and hand. (2)blended fiber preference group had more knowledge on textile fibers than the other groups. (3)preference of fiber was significantly related to the perceived differences of textile performance characteristics in comfort. (4)None of demographic variables influenced textile fiber preference. (5)No difference in price consideration was found between the textile fiber preference groups.

• 정보통신설비학회논문지
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• 제8권4호
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• pp.182-194
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• 2009

The optical fiber subscriber receive communication system is multimedia home network core technology because it is providing the high-level data quality and service. Therefore, it is required to analyze and research this communication system. This paper presents the theoretical background of the optical fiber subscriber receive system for the purpose of understanding the optical communication system principle, and then explain the flow of signal process of each block divided for ASIC implementation.

• 한국생활과학회지
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• 제12권4호
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• pp.497-508
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• 2003

This research was conducted to activate the horne shopping by providing the basic data about demographic characteristics, purchase practices and satisfaction degree of women consumers. The subjects were 328 women consumers residing in Cheongju who had purchased apparel products through home shopping. Collected data were analyzed by frequency analysis, t-test, analysis of variance, and cross-tabulation analysis using SPSS. The results were as follows: 1) When purchasing formal wears, casual wear and furnishing textile products through home shopping, respondents considered the design and fiber content seriously, and when purchasing underwear, the fiber content and size. 2) When purchasing apparel products, most of respondents confirmed apparel labels, and married women confirmed more than single women did. Among apparel labels, fiber content, care symbol, and size were the items that respondents considered most. 3) The single women managed internet and knew the value of internet in searching information or purchasing apparel products better than married ones. 4) When purchasing apparel products via home shopping, respondents used TV, catalog, and internet in order. 5) Degree of satisfaction for clothing purchased via home shopping was in ordinary level, high for furnishing textile products and low for formal wears.

• 대한가정학회지
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• 제29권3호
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• pp.47-59
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• 1991

This study wa performed to investigate the effects of dietary protein and fiber on the lead and protein metabolism in lead poisoning rats. Seventy male rats of Sprague-Dawley strain weighing 172$\pm$2g were blocked into 14 gropus according to body weight. Protein(casein) was given at levels of 15 or 40%, and fibers(pectin, cellulose and CMC) were given at levels of 0, 4 or 10%. The results are summarized as follows: 1. Food intake, weight gain and food efficiency ratio(FER) in groups fed high protein diets were higher than those in low protein groups. Liver weight in groups fed no dietary fiber was higher than that of animals fed fiber. Kidney and femur weights were greater in high protein groups. Tibia and femur lengths, and tibia weight were not significantly different among groups. 2. Hemoglobin content and hematocrit values showed no significant differance with dietary factors. 3. Total protein contents of serum and liver showed no significant difference, but tended to increase with increasing dietary protein level. Both daily urinary and fecal nitrogen excretions in high protein groups were higher than those in low protein groups. Especially daily fecal nitrogen excretions in high dietary fiber groups were significantly high. Body nitrogen absorption rate was the highest in animals fed no fiber. 4. Pb levels in blood, liver, kidney and bone tended to decrease with high dietary protein and fiber levels. Especially Pb level of kidney was high in all groups. Daily urinary Pb excretion showed no significant difference with dietary factors, but fecal Pb excretion increased significantly in high protein and fiber groups.

• 대한가정학회지
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• 제19권2호
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• pp.135-141
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• 1981

This study was conducted to survey the end-use properties of the commercial men's socks. Date were obtained from 16 samples of men's socks gathered from department store, markets, specialty chain and variety store in street. Stretchness, performance of rib top, fiber contents, strength (abrasion and bursting), pilling properties and color fastness of socks tested in this study were as follows. 1. Stretchness of socks was sufficient but elongation of rib top was insufficient, therefore these facts are getting to become problem to consumers. 2. Fiber contents of samples were not in accord with the labelled item and criteria of Textile Fiber Product Identification Act. 3. Strength and pilling properties were vaious in according to fiber contents of socks. Socks blended of synthetic fibers were superior to that pure natural fibers in strength but not in pilling. 4. Color fastness to perspiration and rubbing were sufficient on the whole, but fastness to laundering in stain were very insufficient.

• 대한가정학회지
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• 제41권3호
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• pp.45-56
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• 2003

The purpose of this study was to compare the pantyhose labels of domestic products which contain fiber content, size spec., care symbol, performance properties with those of foreign-made ones, in order to propose a desirable model of label description for the domestic products. The results were as follows: 1) There were differences in the fiber content and fiber mixture ratio of pantyhose on the label according to the countries. The pantyhoses made in Korea and Japan were described only fiber name on the label, while the pantyhoses made in U.S.A., Taiwan, and England were described fiber name and percent of fiber mixture ratio in detail on the label. 2) Most of the pantyhose size produced and sold in Korea were same Free size, but the products from other countries (U.S.A., England, Japan, Taiwan) were sold in various sizes. 3) There were differences, according to the countries, in the care symbol and related explanation of pantyhose on the label. The pantyhoses made in Korea and Taiwan were described care symbol only on the label, while the pantyhoses made in other countries were described additional explanation for care as well as care symbol on the label. 4) It was known that, unlike Korea, other countries were developing and marketing various types of functional pantyhose. For example, U.S.A. and England were focusing on appearance and comfort aspects of pantyhose, while Japan and Taiwan were focusing to develop functional pantyhose like anti-bacterial and anti-ultraviolet ray pantyhose.

• 정보통신설비학회논문지
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• 제9권2호
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• pp.56-67
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• 2010

Optical fiber subscriber receive communication system is a core technology of multimedia home networks because it provides the high-level quality of data and services. This paper executes an analysis and research on this communication systems and presents the theoretical background for the purpose of understanding the optical communication system principal and explaining signal process flows to divide each block for the implementing ASIC design.