國産電力用 콘덴서를 이용한 三相誘導電動機와 高壓水銀램프의特性에 關한 硏究

金暻烈 崇實大學校 1974 論文集 Vol.5 No.2

대학 내 급식소의 안전성 확보를 위한 미생물학적 안전성 평가

김경열,정덕화,심원보,남민지,남보람,류희정,허록원 한국식품위생안전성학회 2010 한국식품위생안전성학회지 Vol.25 No.1

The objectives of this study were to investigate the microbial contamination levels on food service in university and to provide the information of microbial contamination to improve food safety. A total of 288 samples were collected during summer and winter season between 2006 and 2008 from 4 food services located in the university in Western Gyeongnam and were used to detect sanitary indicator bacteria [aerobic plate count (APC), coliform,and Escherichia coli] and pathogenic bacteria (Staphylococcus aureus, Salmonella spp.). As a result, APC and coliform for hand and kitchen utensils which are used often by the employee were detected at high levels of 1.1~5.5and 1.3~5.3 log CFU/(100 cm2, hand), respectively. The contamination levels of APC and coliform in cooked foods and drinking water were 0.8~6.4 and 1.3~5.0 log CFU/(g, mL), respectively. Especially, the cooked foods showed the highest contamination for APC (2.1~6.4 log CFU/g) and coliform (1.0~5.0 log CFU/g). We think the reason that the cooked foods may be contaminated with APC and coliform on cooking process by using employee’s hand and kitchen utensils. Moreover, S. aureus for hand and kitchen utensils was detected at levels of 2.8~3.0 and 2.0~2.3 log CFU/(g,hand), but Salmonella spp. was not detected. According to the above results, contamination levels of the samples were mostly decreased irrespective of summer and winter season. The results obtained indicated that it is necessary to periodic monitoring for microorganism contamination and education about personal and environmental hygiene to employee for ensuring food safety of food service in university.

ELISA-LC/MS/MS 병행에 의한 식품 중 aflatoxins 분석

김경열,남민지,남보람,류희정,송정언,심원보,이수형,정덕화,Kim, Kyeong-Yeol,Nam, Min-Ji,Nam, Bo-Ram,Ryu, Hee-Jung,Song, Jeong-Eon,Shim, Won-Bo,Lee, Soo-Hyung,Chung, Duck-Hwa 한국환경보건학회 2010 한국환경보건학회지 Vol.36 No.1

High performance liquid chromatography (HPLC) and liquid chromatography mass spectrometry (LC/MS) have been widely used to quantify aflatoxins in food, but these methods are expensive, time-consuming, unsuitable for analysis of the routine screening of large sample numbers and require derivatization and high level techniques to perform. The objective of this study is to detect aflatoxins in a large number of foods by a high efficient analytical system of combined enzyme linked immunosorbent assay (ELISA) for screening and LC/MS/MS for confirmation. The samples spiked individually with aflatoxin $B_1$ (0.5 and 1.0 ng/g) and total aflatoxins (10 ng/g) were analyzed by ELISA and LC/MS/ MS, and the recoveries for ELISA and LC/MS/MS were 71.8~119.2% and 70.8~135.3%, respectively. A total of 378 samples (grains, nuts, soybean and fermented soybean foods, pepper and fermented pepper foods) were purchased from the six major cities in Korea and analyzed by ELISA-LC/MS/MS system. Twenty two (5.8%; peanut: 11, pistachio: 2, walnut: 6, almond: 1, pepper powder: 1, pepper paste: 1) out of 378 samples were screened as aflatoxin B1 positive by ELISA, but, 4 (1.1%; peanut: 2, pistachio:1, pepper powder: 1) out of the 22 samples screened were confirmed as aflatoxins positive at levels of 1.02~52.79 ng/g by LC/MS/MS. ELISA-LC/MS/MS system provides a more rapid, accurate and cost-effective method for the detection of aflatoxins in large number of samples.

학령기 교육을 마친 지적장애인의 직업 의미

김경열 한국발달장애학회 2022 발달장애연구 Vol.26 No.3

This study was conducted to explore the occupational meaning of intellectually disabled people by analyzing their work experiences after receiving school-age education in Korea. The research questions are as follows. First, what do intellectually disabled people struggle with in their work lives? Second, what makes people with intellectual disabilities endure working life? Third, what is the meaning of the job that intellectually disabled people think? This study was conducted as a qualitative case study method that can obtain in-depth information on the meaning of the occupation of intellectually disabled people who have completed school-age education through the voices of five intellectually disabled people with 3 years or more of special education during school age. Three top categories (tough due to continuous human relationship conflict, tough due to tomorrow, weak due to work) and seven bottom categories (misunderstanding and inexperienced dealing with reason, wanting to make money and open a store, looking forward to pay day, self-management, self-confidence, concentration, and less challenging behavior) were found. Through this study, it was possible to see how intellectually disabled people who have completed school-age education overcome the difficulties of their professional lives and give meaning to their jobs. 본 연구는 우리나라에서 학령기 교육을 받은 지적장애인의 직장경험을 분석함으로써 지적장애인의 직업의미를 탐색하기 위해서 수행하였다. 연구문제는 다음과 같다. 첫째, 지적장애인들이 직장생활하면서 힘들어 하는 것은 무엇인가? 둘째, 지적장애인들은 직장생활을 견디게 하는 것은 무엇인가? 셋째, 지적장애인들이 생각하는 직업의 의미는 무엇인가? 본 연구는 학령기 동안 특수교육을 받은 3년 이상의 직업경험을 가진 지적장애인 5명의 목소리를 통해서 ‘학령기 교육을 마친 지적장애인의 직업의 의미’에 대한 심층적 정보를 얻을 수 있는 질적 사례연구 방법으로 진행하였다. 3개의 상위범주(계속되는 인간관계 갈등으로 힘듦, 내일이 있기에 꾹꾹 참으면서 힘냄, 일이 있어서 힘남)와 8개의 하위범주(이성간의 오해와 대처 미숙, 직장 동료들 간의 배려 없음, 돈을 벌어서 가게를 내고 싶음, 손꼽아 기다려지는 월급날, 자기관리에 유익함, 자신감을 북돋게 함, 집중력이 좋아짐, 도전적인 행동이 줄어 듦)를 발견하였다. 본 연구를 통해서 학령기 교육을 마친 지적장애인에게 직업은 단순한 소득의 창출의 통로를 넘어서 자신감과 행복감을 준다는 것을 알 수 있다.

A Data-based Analysis of Tense Shifts in News Texts

김경열 한국중원언어학회 2019 언어학연구 Vol.0 No.51

From a discourse-based perspective, this study aims to identify the pragmatic factors that govern the choice of a tense in particular patterns of tense-shifts that are preferred in news texts. For the analysis of the discourse-pragmatic functions of the selected tenses in certain tense-shift patterns, this study investigates the distributional patterns and frequency of occurrence of tense-shifts exploited in headline news texts. Thus, the main purpose of this study is to find out linguistic tendencies or regularities underlying tense choices. The findings from the data-based analysis reveals that the interplay between the semantic properties of the selected tense and its pragmatic function is closely related to tense manipulation, and particular patterns of tense shifts tend to be preferred in news discourse for the purpose of maximizing the pragmatic effects of a tense selection. Finally, this study suggests that the predominance of a particular pattern of tense switch should be recognized as one of the reflexes of its pragmatic advantage functionally associated with the effectiveness of organizing a news discourse.

A Study on Get-Constructions in Prototype Theory and Cognitive Categorization

김경열,강남길 미래영어영문학회 2014 영어영문학 Vol.19 No.3

본 연구에서 다양한 형태의 get-구문이 원형범주이론에서 어떻게 분류될 수 있는지를 살펴보고, 범주화를 구분해주는 통사적, 의미적 변별요인을 제시하고자 한다. 특히 인지-의미론적 관점에서 동사 get의 다양한 의미들은 각각의 의미들이 개별적인 것이 아니라 하나의 원형의미로부터 의미확장을 통해 확대된 것으로 영어에 존재하는 다양한 get-구문의 통사적 유형과 밀접한 관련이 있음을 밝힌다. 동사 get의 다기능적 의미와 의미확장, 기능적 의미와 어휘적 의미의 구분, 자동성과 타동성과 같은 변별요인들이 get-구문 분류의 특상을 설명해 주는 증거로 제시된다. 첫 번째 요인으로는 동사 get의 다의적 의미로 인해 다양한 get-문장구조(기동형 get-구조, 수동형 get-구조, 조동사 get-구조 등)가 존재하며 통사-의미의 변화가 가능하다는 사실을 제안한다. 두 번째 요인으로는, 동사 get이 지니고 있는 다의적 의미 사이의 의미확장과 의미연쇄로 인해 get-구문의 원형범주화가 필요하며, 이 원형범주화는 언어사용자가 경험을 바탕으로 인지하고 이해하는 인지적 능력과 의미적 자질들을 근간으로 하고 있음을 강조한다. 세 번째 요인으로는, 의미의 은유적 확장과 언어의 범주화는 이분법적, 혹은 필요충분조건으로 구분되는 것이 아니라 원형의미로부터의 의미연쇄, 혹은 의미확장을 통해 설명될 수 있음을 주장한다. 따라서 원형이론과 인지범주화의 틀 속에서 동사 get의 다의성과 get-구문의 범주화가 가장 잘 설명될 수 있음을 밝히고, 인지범주화의 접근방법이 동사 get의 다의성과 get-구문의 복잡성을 이해하는데 큰 도움을 주고 있음을 주장한다.

도시계획변경통제규정 해설

김경열 대한지방행정공제회 1979 도시문제 Vol.14 No.6

1장. 전기수송용 전력구의 계획

김경열,이대수,김강규,류희환,Kim, Gyeong-Yeol,Lee, Dae-Su,Kim, Gang-Gyu,Ryu, Hui-Hwan 한국터널지하공간학회 2015 자연, 터널 그리고 지하공간 Vol.17 No.1

발전소 고압전동기 열화 요인 분석

김경열,김희동,김병래,공태식,김병한,이상길,이종훤,최홍석,Kim, Kyeong-Yeol,Kim, Hee-Dong,Kim, Byeong-Rae,Kong, Tae-Sik,Kim, Byong-Han,Lee, Sang-Kil,Lee, Jong-Hweon,Choi, Hong-Suck 한국전기전자재료학회 2011 전기전자재료학회논문지 Vol.24 No.10

When the high voltage motor fails in power plants, there will be an occurrence where the generator's output would be reduced or the generators would trip. Despite of these effects, the causes of deterioration of the high voltage motor is very seldom investigated. In this paper, the collected data which tested in the field over 10 years have been treated statistically, and analyzed to correlate the insulation deterioration of high voltage motor and installation environment, number of start/stop, and service life. Moreover, the proper period of insulation test is developed to map out maintenance strategy and reduce maintenance costs.

화력발전소 전력케이블 절연진단 동향

김경열,Kim, Gyeong-Yeol 한국열병합발전협회 2011 열병합발전 Vol.80 No.-