무선국 전자파 노출량 평가기술

김병찬,최형도,Kim, Byeong-Chan,Choe, Hyeong-Do 한국전자파학회 2007 전자파기술 Vol.18 No.3

플라즈마 공정의 신경망 제어기술

김병찬,Kim Byeong-Chan 한국전기전자재료학회 2006 전기전자재료 Vol.19 No.6

원추형 오리피스의 유출계수와 캐비테이션에 관한 실험적 연구

김병찬,윤병옥,박복춘,조남오,지대성,정백순,박경암,Kim, Byeong-Chan,Yun, Byeong-Ok,Park, Bok-Chun,Jo, Nam-O,Ji, Dae-seong,Jeong, Baek-Sun,Park, Gyeong-Am 대한기계학회 1997 大韓機械學會論文集B Vol.21 No.10

The high pressure drop is frequently required in the by-pass line of the pump or of the heat exchanger in power plants. However, cavitation produced by a high pressure drop could damage the pipe and pump blades. Conical orifices are adopted to reduce cavitation due to high pressure drop. The discharge coefficients of conical orifice plates were measured by weighing method in the standard water flow system. The discharge coefficients were larger when the ratios of thickness of orifice edge to throat diameter were larger. The noise generated from a conical orifice due to cavitation was measured with a sound level meter and a hydrophone. With increasing the bore diameter of the orifice, the sound pressure level or the noise level due to cavitation became higher. The noise level was suddenly increased at the inception of cavitation.

병원감염 예방기술 - 바이러스 신속 분석 기술-핵산증폭 진단법을 중심으로

김병찬,Kim, Byeong-Chan 한국공기청정협회 2015 空氣淸淨技術 Vol.28 No.3

Toxicogenomic Analysis on Impacts of EDCs and Other Toxic Chemicals by using Both Japanese Medaka Fish and Bacterial cDNA Microarrays

김병찬,박경서,구만복,Kim Byeong-Chan,Park Gyeong-Seo,Gu Man-Bok 한국유전체학회 2006 유전체소식 Vol.6 No.1

재사용 포장용기사용을 통한 일관수송이 물류비용에 미치는 영향에 관한 연구

김병찬 ( Byeong Chan Kim ) 대한설비관리학회 2014 대한설비관리학회지 Vol.19 No.3

In the logistics operation of fruits and vegetables represented by the apple, pear, persimmon and mandarin, the difficulties with intermodal transportation between producers and consumers, which are driven by the rising packaging costs due to the use of one-time corrugated cardboard packaging materials and the reality of loading and unloading by the loading and unloading labor at public wholesale markets, have increased logistics costs. This study proposed an intermodal transportation plan with the use of packing containers of reusable materials to replace one-time corrugated cardboard packaging materials as a measure to deal with the difficulties. The study also developed a logistics rationalization model for intermodal transportation of fruits and vegetables by examining the stages of transportation among producers, public wholesale markets, and retail markets, the circulation routes of fruits and vegetables, and analyzing the costs through the transportation process from producers to retailers as well as the packaging costs and loading and unloading costs. Furthermore, the study demonstrated that intermodal transportation and logistics costs could be reduced by using reusable packaging containers that could be loaded by the pallet unit from producers in the producing areas to public wholesale and retail markets through numerical analysis of packaging costs, transportation costs, and loading and unloading costs.

예비교사들은 교직과목「교육행정」수업을 통해 무엇을 배우는가?

김병찬(Kim Byeong-Chan) 한국교육행정학회 2005 敎育行政學硏究 Vol.23 No.3

본 연구에서는 교육행정 교육에 대한 보다 심층적인 이해를 위해 예비교사들을 대상으로 운영되는 교직과목「교육행정」수업에 대한 질적 사례 연구를 수행하였다. 본 연구에서 설정한 연구 문제는, 첫째, 예비교사들은 어떤 맥락에서「교육행정」수업을 듣고 있는가?, 둘째, 예비교사들은「교육행정」과목을 어떻게 보고 있는가?, 셋째,「교육행정」수업을 통해 예비교사들에게는 어떤 변화가 일어나는가? 등 세 가지였다.<br/> 교육행정 수업에 대한 본 연구 결과, 예비교사들은 교육행정에 대한 무관심과 무지, 진로에 대한 고민, 자신의 경험과의 연계 등의 맥락에서 교육행정 수업을 듣고 있는 것으로 나타났다. 그리고, 예비교사들은 또한 교육행정에 대해 교육현실을 다루는 과목, 소화할 분량이 너무 많은 과목, 거리감이 느껴지는 과목 등의 이미지를 갖고 있는 것으로 나타났다. 교육행정 수업 과정에서의 변화 측면에서는, 예비교사들은 교육행정 수업을 통해 교육행정에 눈을 떠가며, 자신의 교육관을 형성하고, 교사로서의 정체성을 탐색해 가는 등의 모습을 특징적으로 보여 주었다.<br/> 본 연구를 통해, 교직과목 교육행정 수업은 예비교사들에게 교육에 대한 거시적 관점을 형성하게 하고, 예비교사들의 자아 성찰을 자극한다는 점에서 의의가 있는 것으로 나타났다. The purpose of this study was to investigate the reality of education on educational administration. For that purpose, 20 university students were interviewed deeply, who are participating in a lesson of educational administration in pre-service teacher education program.<br/> I had three research questions for this study. 1) In what context do pre-service teachers learn a subject of educational administration? 2) What are the pre-service teachers' images on the subject of educational administration? 3) What are the changes of pre-service teachers in the course of educational administration?<br/> The results of this research were as followings. Pre-service teachers have few known about educational administration and they are not interested in educational administration. They have studied the subject of educational administration in the anxiety on their future. They also have connected their experiences with the lesson of educational administration.<br/> Pre-service teachers have the images on the subject of educational administration as follows. 1) They think that the subject of educational administration is “the subject of treating educational reality”. 2) They think that the subject of educational administration is composed of “much more contents on educational administration”. 3) They think that the subject of educational administration is “far from them”.<br/> There are three changes in the course of educational administration for pre-service teachers. 1) Pre-service teachers have realized the meaning and the value of educational administration in the course of educational administration. 2) They have built their perspective on education in the course of educational administration. 3) They have also searched their identity as teacher.<br/> Concludingly, from this study, I found that pre-service teachers have formed their macro-perspective on education and have expored their self-identity as teacher in the course of educational administration.

방과후학교 자유수강권제도 운영 과정에 대한 질적 사례 연구

김병찬(Kim Byeong Chan),박지연(Park ji yeon) 한국교육행정학회 2010 敎育行政學硏究 Vol.28 No.2

학교운영위원회제도의 명(明)과 암(暗)

김병찬(Kim Byeong-chan) 한국교육행정학회 2007 敎育行政學硏究 Vol.25 No.4

본 연구에서는 학교운영위원회제도의 실제에 대한 심층적 이해를 목적으로, 한 초등학교를 선정하여 그 학교의 학교운영위원회 운영 과정에 대해 1년 동안 참여관찰 및 심층면담을 중심으로 한 절적 연구를 수행하였다. 연구 결과, 학교운영위원회 운영 과정에서 ‘교장 주도’, ‘비전문주의’, ‘행정업무중심 심의’, ‘보고와 설명 위주’, ‘그들만의 리그‘ 등의 특징이 있는 것으로 드러났다. 그리고 현행의 학교운영위원회제도는 ’학교체제의 개방화‘와 ’민주의식의 고양‘ 등의 긍정적인 측면과 아울러, 학교운영위원회 위원의 ’대표성 문제‘와 ’전문성 문제‘ 등의 부정적 측면을 함께 가지고 있는 것으로 분석되었다. 연구 결과를 바탕으로 학교공동체 구성원들의 학교운영위원회 참여를 촉진할 수 있는 방안 마련, 학교운영위원회 위원들에 대한 체계적인 연수기회 마련, 학교운영위원회제도의 본래적 목적과의 연계 방안 마련 등의 개선방안이 제안되었다. The purpose of this research was to explore the characteristics of school council. For that purpose, I did participant observation and depth interview in an elementary school for one year. From this research, I found some characteristics of school council as followings. 1) the school council was mainly operated by principal, 2) the school council was operated non-professionally, 3) the school council deliberate on administrative affairs mostly, 4) the school council was operated by cheifly reporting and explanation but discussion or debate, 5) the school council was operated by only committee member but others of school community. I concluded that current school council system has positively contributed to opening of school system and promoted the democratic consciousness of school community. But the school council system have two main problems. One is that the council member are not representative of their part. The other is that the council member are not professional. Concludingly I suggest improvement plan of school council. 1) We have to make some strategies to promote the participation of school community to the school council. 2) We should prepare systemic training program for school council member.

가격할인하 안전재고 합리화를 위한 분배시스템 운영에 관한 연구

김병찬(Byeong-Chan Kim),김홍기(Hong-Ki Kim) 한국산업경영시스템학회 2009 한국산업경영시스템학회 학술대회 Vol.2009 No.춘계

The logistic environment of Korean companies faces very challenging circumstances due to lack of resources and tough price competitions. It is obvious that such a load of logistic cost becomes an obstacle to national or business competition advantages in the era of unlimited market competition. Prior studies concerning these issues sought to express a large-scale distribution network in a unified numerical formula using defined symbols and could take systematic approaches to distribution network. But inventory policy and operation in material distribution system have been limited to conventional methodology, so they are exposed to many questions in practical applications. This study analyzed distribution system cost and developed a relevant model for rationalization of safe stock at discounted price, allowing practical applications, so that it will contribute to saving operational cost related to material distribution system.