인천지역 초등학교 학부모의 학교 급식에 대한 인식 및 관심도 조사

우경자,홍성야,천종희,김영아,최은옥 동아시아식생활학회 2000 동아시아식생활학회지 Vol.10 No.3

Perceptions and concerns of parents about elementary school lunch service were investigated by questionnaires in March, 1998. Five hundred and ten parents were selected randomly from schools in the city area, the rural area or the islands in Incheon Metropolitan city. 95% of parents preferred the school lunch service because nutritious food was available to the children regardless of family income or mother's occupation. Meal cost per capita was in the range of 1,000 and 1,200 won, which satisfied most parents (74%). Moreover, many parents (68.8%) were willing to pay extra money to support the school lunch program and they actually had such experiences (82.4%). More than 90% of the respondents wanted to be adviced about the menu. Subjects chose nutrition and sanitation (25%), taste (18%), and meal size (16%) as aspects of improvement in school lunches. Parents wanted to participate in serving foods, cooking, and washing dishes once (23%) or twice (31%) a year and they considered this as a good opportunity to join the school activities. 98% of parents showed very positive responses to the nutritional education provided by the school dietitian.

인천지역 초등학교 학생의 급식 만족도에 관한 조사

우경자,김영아,천종희,최은옥,홍성야 동아시아식생활학회 1999 동아시아식생활학회지 Vol.9 No.3

Present status of school lunch service and satisfaction on it were surveyed by questionnaires with 636 elementary school students in Inchon city. School lunch service was considered positive in 68.3% of the objectives. Most of the students thought the amount of rice and side dishes appropriate. And the ratios of students feeling the food taste fair and good were 36.6% and 56%, respectively. When dislike-foods were served. 58.3% still ate forcedly and 30.4% ate partly. Reasons for not eating up foods were dislike foods(46.7%), too much amount (20.3%), and bad taste(17.5%). Colors and appearance of foods were thought to be fair and good(93.8%). Warm foods were thought to be served warm as they should be(51.5%) and a little colder than they should be(43.5%). 65.4 percent of the students responded to be served cold foods cold enough as they should be. Dining hall was preferred as an eating place(61.4%). Half of the students occasionally washed their hands and 35.0% always did. Those in charge of teaching the table manners were teachers(59.8%), dieticians(16.9%) and principals(4.5%). Sixty-three % of the students felt the dieticians kind. Good changes resulting from the school food service were student could have balanced diet(24.4%) and enjoy eating(18.1%). For better school lunch service it is necessary to provide menu for student's preferences, facilities for maintaining food temperatures, dining halls and opportunities to wash hands prior to eating.

전략계획수립을 위한 의사결정분석 프로세스 및 적용사례

김성희,이진우 한국경영과학회 1994 한국경영과학회 학술대회논문집 Vol.- No.2

Strategic managerial problems tend to become more complicated, unstructured, and not readily quantifiable. These problems involve many interacting variables or factors that make the problems hard to be grasped by influencing each other. Purely analytical techniques that can handle well-defined problems are inadequate to deal with such real problems. What is instead called for is more qualitative tools for supporting decision processes that could operate at a higher abstract level. To address this issue this paper proposes the Visual Decision Making Process (VDMP) that assists decision makers who have to perform decision process from problem structuring to choice-making. Based on the VDMP, this paper develops a Visualized Decision Support System (VDSS) and applies it to planning a strategy of a communication corporation in Korea. Through this application, it is argued VDSS is effective and usable in structuring and analyzing ill-structured strategic problems.

아스팔트 콘크리트의 역학적 특성과 결합재 성능과의 관계 구명

김광우,이성훈,도영수,이순제 강원대학교 부설 석재복합신소재 제품연구센터 2000 석재연 논문집 Vol.5 No.-

아스팔트 콘크리트는 아스팔트 바인더와 골재의 혼합물로서 역학적 특성은 골재와 바인더의 특성에 따라 크게 좌우된다. 지금까지 골재의 특성에 따른 혼합물의 특성에 대한 연구는 많이 수행되었지만 아스팔트 바인더의 특성에 따른 혼합물의 특성과의 관계는 잘 알려져 있지 않고 있다. 본 연구에서는 폴리머 개지 아스팔트의 역학적 특성과 PG 등급 결정 및 샌드 아스팔트 혼합물의 역학적 특성시험을 수행하였다. 아스팔트 바인더의 물리적 특성으로 절대점도, 동점도, 침입도 시험을 수행하였고 바인더의 PG등급을 결정하기 위하여 DSR시험과 BBR시험을 수행하였다. 직접인장시험과 간접인장시험으로 아스팔트 혼합물의 역학적 특성을 측정하였고, 회귀분석을 통하여 바인더의 물리적 특성을 근거하여 샌드아스팔트 혼합물의 인장강도를 예측하기 위한 모델을 개발하였다. 이로부터 물리적 특성과 직접인장강도 사이의 밀접한 상광관계가 있음을 구명하였다. Asphalt concrete is a mixed product f asphalt binder and aggregates. Characteristics of asphalt mixture are changed with variation of binder's rheology. Therefore, the asphalt is modified using many polymers to obtain a better rheological properties. mechanical property of asphalt concrete is also a function of binder characteristics. However, the correlation of asphalt property with mixture mechanical property is not well known. This study dealt with evaluation of physical properties and PG grade of polymer modified asphalts, and mechanical properties of sand asphalt mixture. The physical property evaluated included absolute viscosity, kinematic viscosity, penetration. DSR and BBR test was performed to obtain appropriate PG grade. the mechanical property included indirect tensile strength and direct tensile strength. Regression analysis was carried out to obtain a prediction model form tensile strength of sand asphalt mixture based on physical property of binder. A relatively high correlation was sound from each physical property with direct tensile strength.

정수처리에서 제올라이트 여과를 이용한 암모니아성질소의 제거와 재생

김우항,이승희 한국환경과학회 2004 한국환경과학회지 Vol.13 No.7

As the concentration of ammonium nitrogen could be reached 2~3 ㎎/L in the winter in the river. It was clear that the excessive concentration of chlorinated organics could be produced with the increase of chlorine addition to remove ammonium nitrogen. In the innovative ammonium nitrogen removal process, zeolite adsorption is very efficient as substitute for rapid sand filtration without other adverse quality change in the water. This study is conducted to evaluate the feasibility of ammonium nitrogen removal and regeneration by zeolite adsorption in drinking water treatment. Also, the reuse possibility of zeolite is evaluated to change the removal efficiency of ammonium nitrogen through several times of regeneration. The ammonium nitrogen was not removed in sand filter, but it was almost removed in zeolite filter during 7 days. The sand and zeolite filters have a similar result of turbidity removal. Therefore, zeolite filtration was con-firmed the removal of turbidity and ammonium nitrogen as a media. When compared KCI with NaCl as a chemical for zeolite regeneration, it is demonstrated that KCl was more efficient than NaCl in the ability of zeolite regeneration. The adsorption rate of ammonium nitrogen was almost not decreased in the results of several times of re-generation. It is indicated that both zeolite and regeneration solution were possible to reuse without variation of regeneration rate through this study.

공간조정 복사 메모리재사용 알고리즘의 성능 평가

김성청,우균 동아대학교 정보기술연구소 2002 情報技術硏究所論文誌 Vol.9 No.2

The copying collector is popular because its algorithm is extremely simple and it supports memory compaction although the space overhead of the copying collector is up to 100%. An adaptive copying collector was devised, to reduce the space overhead of the copying collector less than 100%. The adaptive copying collector exploits the fact that the actual size of live graphs is usually less than the half of the heap when the garbage collector is invoked, hence the whole half need not be reserved. This paper describes the implementation of the adaptive copying collector and show some experimental results on the performance of the collector. In particular, this paper compares the performance of three different allocation algorithms of the adaptive copying collector. According to the experimental results, allocation algorithm 3 shows the best performance among these allocation algorithms.

忠南地方의 農業機械 訓練實態에 關한 調査

金聲來,李相祐,金滿秀 충남대학교 농업과학연구소 1977 農業技術硏究報告 Vol.4 No.1

This survey was conducted to secure a basic data for the effective training programs that might be an essential part of any successful mechanization of agriculture in Korea. Chung Nam provincial training center and 17 guidance offices with farm machinery training centers which were thought to be a medium level on their scale in whole country were selected in the survey on its training accomplishments, stafts, facilities, schedule and number of trainees at one time or in a class. The results and recommendations from this survey were as follows; To enhance the effect of farm machinery training, it was absolutely necessary for city or county training center to complement its facilities and equipments. It might be desirable that instructors of each training center should be the one educated or highly trained in the institution of farm machinery, and that the number of technical assistants should be increased and their present part time working condition should be changed to full-time status. It was recommended that training for farmers should be scheduled during off-season so that farmers could participate in the training couses, and that the number of trainees in a class should be reduced to about 10 trainees, which was approximately a fourth of the present situation.

조선업 도장작업자의 유사노출군과 노출변이; 크실렌 노출을 중심으로

고상백,노영만,임현우,신용철,김수근,최홍열,김재용,장성훈 大韓産業醫學會 2001 대한직업환경의학회지 Vol.13 No.4

목적 : 조선업 도장 작업자의 크실렌 노출을 평가하기 위하여, 수행직무 및 밀폐특성에 따라 유사노출군으로 구분하여 노출 변이 및 동질성을 파악하고자 하였다. 방법 : 3회 이상 반복측정이 이루어진 근로자 중동일공정에서 직무상 변동이 없는 근로자 총 28명을 대상으로 하였다. 노출농도 값을 대수전환(lOgtransformation)하여 근로자간, 근로자내 노출 분산요소을 추정하기 위하여, nested randomeffects ANOVA model을 활용하였다. 선정된 유사노출군 내 구성원의 측정 평균이 동일하다고 할수 있는지를 검정하기 위하여 분산요인(9f)을 산출하였고, 쿨즈0.031일 경우 동일하다고 생각하였다.또한 노출 값을 대수전환하여 95 %의 근로자(b-R9s)가 2배수 범위 내에 측정값을 가질 경우 동일하다고 생각하였다. bwRSS의 값을 유사노출군내의 근로자들간(between worker)의 기하표준편차(bwsy)를 구한 후 exp(3.92 bwsy)로 계산하여 산출하였고, 그 값이 2이하이면 동일하다고 생각하였다. 결과 : 일반적으로 유사노출군은 노출농도가 비슷한 것이라는 생각과는 달리, 직무에 근거한 유사노출군은 동질성 검정상 이질적이었다. 분무도장과 붓도장 모두 bwRss은 2를 초과하였고, 룰 또한 0.031를 초과하여 변이 폭이 컸다. 그러나 밀폐특성에 따른 노출 분포의 변이성은 직무만으로 구분했을 때의 변이지표 보다 그 수치가 낮아 밀폐특성으로 직무의 변이성을 설명 할 수 있었다. 결론 : 직무에 근거한 유사노출군이 동질적이지알다는 결과는 유사노출군으로 구분된 근로자의 업무특성이 하나의 유사노출군으로 설정할 수 없다는 점을 시사한다. 따라서 향후 작업환경 측정 시 직무뿐만 아니라 특정 업무(specific task) 또는 세부작업현황까지 파악할 필요성을 제시하고 있다. Objectives : This study was conducted to assess the concentration of xylene exposure and exposure variability of a similar exposure group (SEG) in accordance with job title and confined space. Method : The study subjects included 28 workers working in the painting process in the ship-building industry. Measurement of subjects were repeated three times. Within and between-worker exposure valiance components were estimated from log-transformed exposure concentrations employing a one-way nested random effects analysis of variance model. A uniformly exposed group was defined as one where the between-worker variance(σB2) was less than or equal to 0.031 or bwR95 ≤2, where bwR95 =exp(3.92 bwSy) , representing the radio of the mean exposures of the 97.5th and 2.5th percentile groups of the workers sampled. Result : The results indicated that, contrary to popular belief, similar exposed groups based on job title were heterogeneous. The between-worker variance(σB2) is large(≥0.031) and the ratios of the 97.5th and 2.5th percentile workers of the log normally distributed exposures of each group of worriers was more than 2. However dividing job title into confined space (in-block, out-block, in/out-block) decreased the between-worker exposure variability. Conclusion : This study focused on the quantitative aspects of exposure in painters in the ship-building industry. We cannot accept the assumption that SEG are uniformly exposed, as a major component of variation in exposure relates to differences in tacks or other factors. Therefore, the observational schemes can be improved by investigating Job-specific task and practice.

Optimization of High Resolution Melting (HRM) Analysis and Discovery of Single Nucleotide Polymorphism in Capsicum

Soung-Woo Park,Song-Ji An,Hee-Bum Yang,Jin-Kyung Kwon,Byoung-Cheorl Kang(강병철) 한국원예학회 2010 한국원예학회 학술발표요지 Vol.2010 No.5

Somatic mutations of the <i>ERBB4</i> kinase domain in human cancers

Soung, Young Hwa,Lee, Jong Woo,Kim, Su Young,Wang, Young Pil,Jo, Keon Hyun,Moon, Seok Whan,Park, Won Sang,Nam, Suk Woo,Lee, Jung Young,Yoo, Nam Jin,Lee, Sug Hyung Wiley Subscription Services, Inc., A Wiley Company 2006 International journal of cancer: Journal internati Vol.118 No.6

<P><B>Abstract</B></P><P>The EGFR family consists of 4 receptor tyrosine kinases, EGFR (ERBB1), ERBB2 (HER2), ERBB3 (HER3) and ERBB4 (HER4). Recent reports revealed that the kinase domains of both <I>EGFR</I> (<I>ERBB1</I>) and <I>ERBB2</I> gene were somatically mutated in human cancers, raising the possibility that the other ERBB members possess somatic mutations in human cancers. Here, we performed mutational analysis of the <I>ERBB4</I> kinase domain by polymerase chain reaction–single‐strand conformation polymorphism assay in 595 cancer tissues from stomach, lung, colon and breast. We detected the <I>ERBB4</I> somatic mutations in 3 of 180 gastric carcinomas (1.7%), 3 of 104 colorectal carcinomas (2.9%), 5 of 217 nonsmall cell lung cancers (2.3%) and 1 of 94 breast carcinomas (1.1%). The 12 <I>ERBB4</I> mutations consisted of 1 in‐frame duplication mutation and 8 missense mutations in the exons, and 3 mutations in the introns. We simultaneously analyzed the somatic mutations of <I>EGFR</I>, <I>ERBB2, K‐RAS</I>, <I>PIK3CA</I> and <I>BRAF</I> genes in the 12 samples with the <I>ERBB4</I> mutations and found that 1 gastric carcinoma with <I>ERBB4</I> mutation also harbored <I>K‐RAS</I> gene mutation. Our study demonstrated that in addition to <I>EGFR</I> and <I>ERBB2</I>, somatic mutation of the kinase domain of <I>ERBB4</I> occurs in the common human cancers, and suggested that alterations of ERBB4‐mediated signaling pathway by <I>ERBB4</I> mutations may contribute to the development of human cancers. © 2005 Wiley‐Liss, Inc.</P>