• 한국분말재료학회지
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• 제30권5호
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• pp.415-423
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• 2023

With the increasing attention to environmental pollution caused by particulate matter globally, the automotive industry has also become increasingly interested in particulate matter, especially particulate matter generated by automobile brake systems. Here, we designed a coating composition and analyzed its mechanical properties to reduce particulate matter generated by brake systems during braking of vehicles. We designed a composition to check the mechanical properties change by adding Cr₃C₂ and YSZ to the WC-Ni-Cr composite composition. Based on the designed composition, coating samples were manufactured, and the coating properties were analyzed by Vickers hardness and ball-on-disk tests. As a result of the experiments, we found that the hardness and friction coefficient of the coating increased as the amount of Cr₃C₂ added decreased. Furthermore, we found that the hardness of the coating layer decreased when YSZ was added at 20vol%, but the friction coefficient was higher than the composition with Cr₃C₂ addition.

• 복식문화연구
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• 제23권5호
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• pp.922-927
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• 2015

Checks are best considered as a (visible) sub-set of grids, and each check consists of two assemblies of parallel lines, one superimposed on the other at ninety degrees. In the conventional textile context, one assembly of parallel yarns is superimposed on another at ninety degrees. These parallel lines caused by the yarns remain visually apparent in the finished composition. Commonly, checks are considered simply as a variety of woven textile and Scottish clan tartans, or plaids (common terminology for tartans in the USA), famously display a checked feature, using differently colored yarns in woven-textile form. Often the sequence of colours and the numbers of yarns used is equal in both warp and weft directions. Where this is the case, the tartan may be considered to be 'balanced' or 'regular', with the component yarns creating square units repeating across and down the fabric. Thus in balanced tartans, lengthways components have identical ordering, colouring and measured width to those used widthways. Meanwhile an unbalanced check lacks one or more of these attributes. This paper explores further the nature of Scottish clan tartans, using data collected from collections of rare tartans held at ULITA - An Archive of International Textiles at the University of Leeds.

• 한국응용곤충학회지
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• 제50권3호
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• pp.209-214
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• 2011

곤충 군집의 변화는 서식지 환경의 변화를 파악할 수 있는 척도가 된다. 속리산국립공원에서 2003년부터 2007년까지 월별(4월-10월)로 Flight Interception Trap (FIT)을 이용하여 송장벌레류의 종 구성과 풍부도의 변화를 알아보기 위한 조사를 실시하였다. 그 결과, 6종 9,704개체가 조사되었는데, 이 중 넉점박이송장벌레(Nicrophorus quadripunctatus)가 8,763개체(90.3%)로 가장 높은 우점도를 보였다. 넉점박이송장벌레를 제외한 나머지 5종은 971개체(9.7%)에 불과하였다. 송장벌레 6종의 계절적 풍부도 변화에 따르면 7월과 8월이 최성기인 것으로 나타났다. 또한 연간 풍부도는 2004년 이후 점차 감소하는 경향을 보이고 있다. 장기간의 모니터링 결과, 환경지표종으로 활용이 가능한 송장벌레류의 종구성과 풍부도 변화는 속리산의 기후변화를 간접적으로 나타내고 있음을 시사한다.

• 한국제4기학회지
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• 제17권2호
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• pp.117-122
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• 2003

This study is conducted to examine the woods that were excavated at Jangdo Island. The Jangdo site is located in a small island some 180 meters away from the main island of Wando, Jeollanam-do in southern Korea. This site is known as Cheong-Hea Jin fort for the marine King Jang Bogo during the early 9$^{th}$ century. Total of 101 specimens were collected in three groups； small-size piles, log fences (Mok-check) and logs from a well. The species of the group of piles consisted of Quercus spp. (43%), Pinus densiflora (29%), Pinus koraiensis (5%), Alnus japonica (3%), Fraxinus spp. (3%), Styrax obassia (3%), Juglans spp. (2%), Zelkova serrata (2%), Platycarya strobilacea (2%), Celtis spp. (2%), Torreya nucifera (2%), Quercus myrsinaefolia (2%), and Cinnamomum spp. (2%). The species of Mok-check and logs from the well were identified as all Pinus densiflora. The species composition indicated that the climate around A. D. 9th-10th century in southern Korea was similar to the present.. The wooden fences were also examined for tree-ring analysis. The ages of woods were 50∼60 years. We made two site chronologies. The chronologies indicated that southeastern and southwestern fences were repaired frequently. The results could not give the absolute dates due to lack of reference chronologies in this period.

• 동의생리병리학회지
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• 제30권3호
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• pp.190-200
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• 2016

The aim of this study was to suggest the standard process in developing Questionnaire of Pattern Identification (QPI). The process in developing QPI was researched from validated and developed questionnaire and the standard process in developing QPI was suggested through review of the experts in research, statistics and clinics. Check list was also provided. The number of QPI reviewed in this research was 17(4 in disease in Korea Medicine, 5 in Pathological symptoms, 6 in Sasang constitutional Diagnosis, and 2 in etc), The standard process in developing QPI consisted of 11 phage and 33 check lists. 1) Composition of Research Member(3check lists), 2)Set up of the Aim(5), 3) Review for advanced research(3), 4) Finding an Important Index(3), 5) Review of item selection(4), 6) Developing the questions using items(5), 7) Developing Draft of Questionnaire(2), 8) 1^st Survey of Reliability and Validity(2), 9) Revision and Correction of Item(1), 10) 2^st Survey of Reliability and Validity(2), 11) Completion and Application(3). This study suggests the standard process in developing QPI for the first time in Korea. This following step may help A new QPI development.

• Journal of Plant Biotechnology
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• 제45권4호
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• pp.289-298
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• 2018

국립농업과학원 생물안전성과는 생명공학기술로 개발되는 작물(GM작물)의 안전성 평가 중 '성분분석에 의한 비교평가'에 참고자료로 활용할 수 있도록 기존 상업화 작물성분의 분석 데이터를 제공하는 "작물성분 DB"를 구축하였다. "작물성분 DB"는 우리나라의 자연 환경에서 재배되는 주요 작물 품종들의 영양성분 함량정보를 제공함으로써 품종과 재배 지역, 연도에 따라 함량의 변화 정도를 확인할 수 있도록 데이터를 업그레이드 하고 있다. 현재 2곳 이상의 재배지역에서 2년 이상 재배한 벼와 고추 시료에 대한 주요 영양분과 항영양소, 2차 대사산물을 검증된 분석 방법을 사용하여 분석한 데이트를 제공하고 있다. 데이터는 평균값과 최저, 최대값을 제공함으로써 GM작물의 안전성 평가시 GM작물과 대응 비교작물 간에 나타나는 통계적 차이가 기존 상업작물의 생물학적 차이 또는 허용범위 내에 속하는지를 평가할 수 있도록 하였다. "작물성분 DB"는 사용자가 선택한 쿼리를 기반으로 쉽게 검색하고 활용하도록 하고 있다. 또한 유색미와 감자, 고구마, 콜리플라워와 같은 유색 작물의 기능성 성분 함량 정보를 제공하고 있어 일반 소비자들도 유용하게 정보를 활용할 수 있다. 본 논문은 상업작물 성분에 대한 중요한 정보를 제공하는 농진청 "작물성분 DB"의 구성과 사용법을 소개하였다.

• 한국실내디자인학회논문집
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• 제24권4호
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• pp.70-79
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• 2015

The concept of food and beverage space in modern society is changing into complex space where various experiences are provided. With the increase of food service brands, those brands are getting standardized. Providing more differentiated experience and service became an element of competition to companies. The flagship stores among stores presented by companies have much influence on promotion and sales. Thus, it would be necessary to provide integrated service by adopting service design process for the differentiated design of such experiential space. The objective of this study is to examine the satisfaction of service design of food and beverage flagship stores. By creating a checklist to evaluate the space through the theoretical consideration of flagship stores and service design, the satisfaction of service design of food and beverage flagship stores was analyzed. Through the survey with users of the case space, it was possible to check the satisfaction of the service design elements applied to the food and beverage flagship store space. The satisfaction with service design was evaluated through the 5point scale. When the average point was high, the satisfaction with service design elements was high. In the results of the analysis, regarding the spatial composition of flagship stores, the overall interior/exterior atmosphere should contain the image of the company. As flagship stores compose space that can express various event space and company itself on top of the space for sales, they should present the spatial composition differentiated from other general commercial spaces. The significance of a study on service design of flagship stores is to show positive effect on flagship store space. In the future, it would be necessary to have comparative analysis on domestic and foreign cases applied with the service design process, and also to analyze the strategies in the aspect of service design.

• 대한수의학회지
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• 제42권2호
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• pp.163-170
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• 2002

The relationship between level of milk composition and conditions of ovary and uterus were analyzed in Holstein cows at seven farms participating in a reproductive herd health management program. Milk data were taken from 503 early lactating cows between 30 and 60 days in milk with reproductive examination with ultrasonography from september 1999 to August 2000. Milk fat, protein and solid-not-fat concentration in the herds were $3.70{\pm}1.08%$, $2.97{\pm}0.35$, and $8.41{\pm}0.61%$, respectively. The reproductive disorder relative to normal cows had higher risk in the cows that the level of protein was lower than 2.70%. Also, the higher milk fat than 4.50% were associated with a higher risks in the uterine disease and follicular cysts. Therefore, the cows with the fat to protein ratio of > 1.30 had higher risks for reproductive disorder such as cystic ovarian diseases, inactive ovaries and endometritis. These results indicated that cows diagnosed with reproductive disorder were energy deficient prior to reproductive disorder diagnosis. Consequently, milk fat and protein analyses may be used serve as a monitoring tool for condition of ovary and uterus in early lactating cows

• 한국작물학회지
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• 제21권1호
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• pp.87-91
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• 1976

개간지에서 대두를 재배함에 있어서 시비의 효과를 구명하기 위하여 개간지에는 10a당 N.P.K:4.10.8 kg의 시용구를 비롯하여 무비구를 포함한 6개 처리구를 설치하고 효과를 비교하고저 따로 숙전에다 N.P.K:4.10.8 kg의 시비구를 설치하여 수량과 성분함량을 조사한 결과를 요약하면 다음과 같다. 1. 개간지는 같은 수준의 시비에서도 숙전보다 청예수량이나 자실수량이 극히 적었고 자실의 단백질함량도 적었다. 2. 같은 개간지내에 있어서는 질소의 시용량이 많을수록 자실수량이 많았다. 3. 자실성분에 있어서 숙전은 단백질과 지방함량이 개간지보다 많았고 탄수화물은 개간지가 숙전보다 많은 경향이었다. 4. 개간지에 있어서 자실성분함량은 처리간에 유의성이 인정되지 않았다. 5. 수량과 밀접한 관계가 있는 100입중, 1주협수 간장 간중등은 자실수량과 정의 상관을 나타냈으며 1%수준의 유의성이 인정되었다.

• 한국작물학회지
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• 제36권4호
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• pp.366-369
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• 1991

영양가가 높은 쌀을 생산 보급하여 국민건강증진을 도모코저 국내에서 재배되고 있는 벼 19개 품종을 대상으로 일반도정법으로 10분도로 도정한 후 배아보존율이 높은 오봉벼를 선택하여 외형, 영양가 및 동물 사육효과를 조사 비교하였던 바 오봉벼의 배아보존율은 96.7%였으며, 외형은 전형적인 일본형에 속하였다. 조사 된 모든 영양성분은 낙동벼 보다 오봉벼가 높았으며, 특히 비타민 B$_1$과 Niacin은 낙동벼가 각각 0.14 및 1.9mg%인데 비하여 오봉벼가 0.31 및 3.0mg%로 1.5배정도 높았다. 그리고 쥐 사육효과도 증체율과 사료효과에서 낙동벼는 각각 101 및 l25%이며. 오봉벼는 각각 107 및 172% 로 오봉벼가 낙동벼 보다 높았다. 또한 식미도 색을 제외하고 맛, 냄새 및 끈기는 오봉벼가 낙동벼 보다 높았다.