• 한국산학기술학회논문지
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• 제2권2호
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• pp.7-10
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• 2001

보석이 포함된 장신구는 보석을 고정시키고 최대한 보석의 심미적 기능을 살리기 위해 후면부로부터 금속 난발(prongs)을 사용한다. 최근의 주얼리 산업은 빠른 유행주기 변화에 따른 신속한 개발을 위해 귀금속이 가능한한 적게 들어간 단발난집형의 목걸이 귀걸이류가 필요하다. 본 연구는 단발난집에 보석을 세팅하여 가볍고 안정적인 신개념의 목걸이를 개발하기 위하여 (주)아메스 개발부와 함께 단발난집 공정을 연구하였다. 보석의 측면부분에서 상측으로 중력방향에 대하여 직교하도록 트렌치를 가공하여 금속틀의 프롱을 접촉시키고 저융점을 갖는 소정의 Sn계솔더를 채용하여 트렌치부에 흡침된 솔더를 응고하여 접합을 완성하였다. 실시예로서 완성된 천연 자수정 스톤과 18K Au님의 단발난집에 적용한 결과 기존 제품에 비해 40% 이상의 Au 무게감소에 따른 비용절감과 우수한 착용감의 새로운 펜던트형 장신구의 개발이 가능하였다.

• 한국염색가공학회지
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• 제22권2호
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• pp.173-179
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• 2010

In this study, we determine the stretch and shrinkage properties of conjugated yarns. The shrinkage(%) and elasticity(%) were determined by applying twist conditions of 0, 350, 800, 1000, 1200, 1400, 1600, 2000 T/M (twisting per meter). It is found that the shrinkage(%) and elasticity(%) gradually decreased with increasing T/M. Especially the elasticity(%) dramatically decreased over 1400 T/M condition. In contrast, it is showed that the handle and drapery properties decreased below 1000 T/M, which indicates that the optimal T/M condition could be 1000~1400. The effect of shrinkage(%) and elasticity(%) with different steam setting temperatures (60, 70, 80 and $90^{\circ}C$) was also determined. The shrinkage(%) decreased with increasing setting temperature, while the elasticity not changed. In this context, the optimal steam setting temperature could be $80^{\circ}C$ because it is not easy to weave with the yarns which was set below $80^{\circ}C$. The elasticity(%) decreased with increasing the density of warp and weft. To produce soft handle, excellent drapery and good stretch fabrics, the warp density needs to be reached by 90% of the ideal warp density. In the case of NaOH treatments to the fabrics, the elasticity(%) increased with increasing weight reduction. Therefore, this study have demonstrated that the conjugated yarns with core yarn and the SDY CD(cation dyeable spindraw yarn) as an effect yarn would be appropriate to produce excellent mixture-yarn, which displays clean appearance, good handle and excellent elasticity, The optimized conditions are as follows; 1000~1200 twist per meter, $80^{\circ}C$ steam setting temperature, 90% of ideal warp density and relaxation condition treated with 5g/l NaOH concentration.

• 대한가정학회지
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• 제19권3호
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• pp.47-61
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• 1981

The Siuejunsuh is a book of Korean woman's life in the Yi-dynasty which published late in 18 century by unknown author. I have studied the food habits of the Yi-dynasty that wrote in siuejunsuh as following. The staple foods ae Bab (boiled cooked rice) 2, Juk(gruel) 6, Mieum(thin rice gruel) 3, Uee (liquid) 1, D'ockguk 2, Mandu3 Kinds I this book. the side dishes are Guk(soup) 24, Jochi 7, jungol 2, J'im 16, Sinsollo 1, Bockuem 5, Sun 6, Gui 16, Jock 10, jon 12, jorim 7, Namul 14, Sangchae 4, Hyae 17, Joban 2, Nooruemi 1, Sooranpoached egg) 2, Sondae 2, jockpyun 1, Choe 1, Muchim 11, Pyunuk 2, Jockgall 6, Po 9, Ssam 4, Jup 1, Jangaji 27, Kimchi 20, and other 27 Kinds. the desserts are D'ock 41, jabgwa 52, Beverages 17 kinds. the alcohol and frutie liquor are 18 kinds. The seasonings are soybean sauce, Jinjang, red peper bean paste, Zupjang, Dampukjang, Chunggukjang, honey, vinegar, mustard, Yunzup etc. Storage foods are vegetables,fruits and beans etc. There are 62 kinds of table ware and cooking kitchen utensiles, but many of them came to usefulness. 16 kinds of measuring unit are very non-scientific because that is not by weight but by bulk or volume. Thee are many food making terms which are 179 kinds of prepared cooking term, 22 kinds of cutting term and 16 kinds of boiling term. And 20 kinds of expression of taste can be seen in this book. Food serving methods are D'ockiserving method, fruits and dried food serving methode in chanhap (food packed in a nest of boxes) Guksoo serving method, Jock serving method, fruits serving method, Seup serving method etc. Table setting methods ae 9 sets of dinner, 7 sets of dinner, 5 sets of dinner, side table setting, liquor table setting, Sinsollo table setting, food's dab table setting etc.

• 생물환경조절학회지
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• 제29권2호
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• pp.189-195
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• 2020

겨울철 재배 시 중·소과종 수박의 안정적 생산을 위한 적정 줄기유인 수와 착과 위치를 구명하기 위하여 본 연구를 수행하였다. 줄기유인 수를 위한 시험은 아들줄기를 각각 2, 3, 4줄기로 달리하여 유인하였다. 줄기유인 수에 따른 초장, 경경, 마디수 등 생육특성은 3, 4줄기보다 2줄기에서 높은 결과를 보였다. 그러나 과중, 과고, 과폭 등 과실특성은 4줄기에서 높게 나타났다. 당도와 착과율은 줄기유인 수에 따라 유의한 차이가 없었다. 착과 위치를 위한 시험의 착과 위치는 2, 3, 4번째 암꽃으로 달리하였다. 착과 위치에 따른 암꽃의 평균 착과마디는 각각 11.5, 15.8, 23.1마디였다. 착과 위치가 높아질수록 과중이 증가하여 2번째 암꽃에 비해 4번째 암꽃이 0.8kg 무거웠다. 그러나 당도는 착과 위치가 증가할수록 감소하여, 2번째 암꽃이 4번째 암꽃에 비해 1.3°Bx 높았다. 생육과 과실 특성을 종합적으로 고려하였을 때, 겨울철 중·소과종 수박의 줄기유인 수는 3줄기, 착과 위치는 3번째 암꽃이 고품질의 수박의 생산을 위해 적합할 것으로 판단된다. 그러나 추후에 재식거리, 중·소과종 품종의 다착과 등 수박 재배 농가의 소득 안정을 위한 다양한 연구가 필요하다고 생각된다.

• Journal of Animal Science and Technology
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• 제62권2호
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• pp.247-262
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• 2020

Birth weight and subsequent weight gain is of critical importance in the survival and performance of piglets on a commercial swine farm setting. Oropharyngeal microbiome could influence immunity, and feeding behavior thus impacting health and weight gain. We used 16S rRNA gene sequencing to profile the composition and predicted metabolic functionality of the oropharyngeal microbiota in 8 piglets (4 with a birthweight ≤ 1.0 kg and 4 with a birthweight ≥ 1.7 kg) at 11, 26, and 63 days of age. We found 9 genera that were significantly associated with average daily gain (ADG) at 11 days (false discovery rate, FDR < 0.05) and 26 days of age (FDR < 0.1), respectively. The microbial functional profile revealed several pathways associated with ADG (FDR < 0.05). Among these, pathways related to degradation of catechols showed a positive association with ADG at 11, 26, and 63 days of age, implying a potential to breakdown the host-derived catecholamines. We also noted that pathways related to the biodegradation of nucleosides and nucleotides increased with ADG during the pre-weaning phase, while those involved in their biosynthesis decreased. Our findings provide insights into the oropharyngeal microbial memberships and metabolic pathways that are involved in a piglet's weight gain. Thus, providing a basis for the development of strategies aimed at improving weight gain in pigs.

• 환경영향평가
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• 제21권5호
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• pp.813-821
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• 2012

Environmental and public health concern for the emission of air pollutants from burn-up process in waste incineration plants located in the vicinity of living environment was increased during the past decade. The purpose of this study was to suggest of the simple and rapid method of priority setting model for the decision of full-scale public health assessment. This method was consists of total 5-step. Step 1 was "secure the satellite map" and we can use the satellite map which serves from the website such as NAVER Co. Step 2 was "drawing mesh on the map" for catch the point of occupation of environmental sensitivity facilities, and step 3 was "identification and sorting of the facilities", Step 4 was "setting of weight" using the "weighted linear combination (WLC) method". Finally, all facility was sorted by score. As a result, we can set a priority of 145 facilities based on 177 facilities which managed in local government. Facilities in Seoul metropolitan area was high rank in priority list. On the other side, Facilities located at the country or rural area was low rank because of low occupation of the house and the environmental sensitivity facilities such as kindergarten, elementary school, and hospital. In this study, we suggested simple and rapid method that using for screening procedure of public health assessment.

• 대한건축학회논문집:구조계
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• 제34권3호
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• pp.53-59
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• 2018

When manufacturing self-healing concrete using bacteria, nutrients are added to increase the activity of the bacteria. Although many researches have focused on the effects of nutrients containing bacterial healing agent on concrete, few have studied the effects of sole nutrient on self-healing of cement composites. Bacterial nutrients, like commercial chemical admixtures, affect hydration characteristics such as flow, setting, hydration heat, mechanical strength of cement composites and also affect the self healing of cement composites by hydration of unhydrated particles. In this study, effect of the four nutrient commonly used in the existing literature on the hydration characteristics of cement composites by its addition was investigated. Flow, setting time, hydration heat, compressive strength have studied for each nutrients added by 1.5% and 3% of cement weight. Experimental results shows that urea and calcium-nitrate can be used up to 3% without significant detrimental effect on cement composites. Addition of calcium-lactate up to 1.5% show better compressive strength than control, but addition of 3% show almost non-hydration. Yeast extract shows detrimental effects on the composites regardless of the amount added.

• 한국군사과학기술학회지
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• 제25권5호
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• pp.530-538
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• 2022

Recently, the R&D of weapon systems has been strengthened in terms of economic cost management throughout the entire life cycle from performance. This study proposes the method for setting the optimal maintenance concept based on RAM-C in weapon system acquisition stage by calculating the operation & maintenance cost as well as reliability, availability, and maintainability. First, we design a simulation model for analysis of weapon system logistic supportability. In addition, information such as weapon system Part Breakdown Structure, operation & maintenance system, cost, and etc for simulation analysis, is applied. Based on the obtained simulation results, the optimal plan is selected among alternatives designed with various maintenance concepts through normalization and weight setting. It is expected to be of technical help in the application of RAM-C in the weapon system acquisition stage.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2005년도 추계 학술발표회 제17권2호
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• pp.749-752
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• 2005

Normally, the degradation of concrete member exposed to fire is largely dependent on the fire scale and fire condition. With all ensuring the fire resistance structure as a method of setting the required cover thickness to fire, the RC is significantly affected from the standpoint of its structural stability that the compressive strength and elastic modulus is reduced by fire. Thus, this study is concerned with experimentally investigating fire resistance of high strength-light weight concrete. From the test result, high strength-light weight concrete is happened explosive spalling. The decrease of cross section caused by explosive spalling made sharp increasing gradient of inner temperature.

• 대한안전경영과학회지
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• 제9권6호
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• pp.205-214
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• 2007

Nowadays the customer is classified with external customers and the inside customers. Which are not only end users who consume products but also all people who contribute to their earnings through the management activity of the enterprise. Furthermore, the fact that the external customer satisfaction index and inside customer satisfaction index are closely related is supported by many researches. It is interpreted if the inside customer satisfaction is not improved, achievement of the external customer satisfaction cannot be easy. In this paper, First, we will deduce the inefficient index through DEA model in each department after setting up the weight of items of inside customer satisfaction and measuring them. Second, as well as research entire models about improvement methods of inside customer satisfaction getting improvement methods for reaching a goal in the minimum amount of efforts.