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김성열,권은경 한국디지털정책학회 2018 디지털융복합연구 Vol.16 No.12
이 논문에서는 현재 창원시 중학교의 학력수준을 분석하고, 향후 창원시 중학교 학력수준 개선방안을 탐색하였다. 분석에 활용한 자료는 학교 알리미 사이트(www.schoolinfo.go.kr)에 공개된 2013년도부터 2016년까지의 창원시 중학교 학생들의 국가수준 학업성취도 평가 결과이다. 분석결과, 첫째, 창원시 중학교의 학력수준은 인구 규모가 비슷한 광주, 대전, 울산광역시의 학력수준보다 높지 않음을 확인하였다. 둘째, 창원시내 중학교 간 학력 수준이 년도에 따라 차이가 있었다. 셋째, 창원시 중학교의 학력 수준은 창원시 구(區)별로 차이가 있었다. 넷째, 창원시 중학교 간 학력 차이는 공·사립별로, 단성(單性)학교와 남녀 공학 간에도 존재하였다. 이러한 분석결과에 근거하여 이 논문에서는 보통학력 이상 비율이 낮은 학교들은 보통학력 이상 비율을 높일 수 있는 방안을 강구해야 하고, 기초학력 미달 학생의 비율이 높은 학교는 무엇보다도 기초학력 미달 학생을 해소하려는 노력을 기울여야 함을 제안하였다. This paper analyzed the current level of the middle school academic achievement in Changwon City and explored the ways for improving academic achievement of the middle school in Changwon City. The data used in the analysis were the results of National Assessment of Educational Achievement of middle school students from 2013 to 2016 which was released on the school's information website(www.schoolinfo.go.kr) First, the analysis found that the academic achievement level of the middle school in Changwon City was not higher than those of Gwangju, Daejeon, and Ulsan, where the population size is similar. Second, the level of academic achievement among middle schools in Changwon City differed by year. Third, the level of academic achievement of middle school in Changwon City differed by district. Fourth, the educational achievement gap among middle schools in Changwon City existed by public and private school, as well as by male school, female school, and male and female Middle School. The paper suggested that schools with low ratio of proficient and above achievement levels should look for ways to raise the percentage of proficient and above achievement levels, and schools with higher rates of below basic achievement should make efforts to solve the problem.
디지털 서명 기반 안전한 이동 에이전트 보안 시스템의 설계
김성열,한승조,배용근,정일용 조선대학교 전자정보통신연구소 2001 電子情報通信硏究所論文誌 Vol.4 No.1
Network-based application and programming have recently drawn considerable attention to electronic commerce. For developing this application easily, a new technology, language and paradigm make an appearance. In particular, mobile agent is focused on. When mobile agent operated in distributed network environment, it may offer enormous advantages. However, Mobile agent system have significant problems on information security owing to migration from server to server. Therefore, in this paper, we analyze the security component and propose the communication protocol to solve these problems. Security problems of mobile agent system is composed of utilization of unsecure communication channel, an attack on agent executed by malicious host, and an attack on host executed by malicious agent. Theses problems can be solved when the following functions are offered; authentication, confidentiality, integrity, prevention of repudiation and etc. The proposed protocol is designed to provide security services with mobile agent systems by employing bidirectional authentication of agent server, and Identity-based key distribution and the digital multi-signature for protection of execution data. Identity-based cryptography mechanism can simplify the distribution and management of key. This is one of features on the proposed protocol. Also, it guarantees the liveness of agent on the basis of audit of agent execution and protects the execution data.
M-Commerce에서 Secure Card 기반의 결제 프로토콜 설계
김성열,조성지,유성진,배용근 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2
In order to provide a reliable M-Commerce, a payment solution with security functions should be required. User's mobile terminals used in M-Commerce services are diversifying to cellular phone, PDA, Smart phone etc. Among them, integration of PDA's interface and mobile connection overcomes the weak point of existing cellular phone depending on information via the internet. In this paper, the Secure Card based protocol for a credit card transaction on PDA using ECC is presented. Secure Card module on this protocol encrypts user's information such as private information, delivery information and credit card information and stores it on PDA in order to free from inputting information whenever it is used. This scheme also offers security services on M-Commerce including authentication, confidentiality, integration, non-repudiation and so on.
Involvement of protein kinase C pathway in UVC-stimulated phospholipase D2 activity in Vero 76 cells
김성열,최명언,최명선 생화학분자생물학회 2005 Experimental and molecular medicine Vol.37 No.5
Phospholipase D (PLD) activity is known to be related to oxidant-induced cellular signaling and membrane disturbance. Previously, an induction of PLD activity in various cell lines by X-ray irradiation was observed. In this study, we examined the effect of UVC radia-10 kJ/m2of UVC irradiation, the PLD activity was stimulated approximately 10-fold over the basal activity. This UVC-induced PLD activity was found to be dependent on the presence of extracellular calcium and was inhibited by catalase as well as amifostine - an intracellular thiol antioxidant. Pre-treatments with Ro32-0432 - a selective inhibitor of protein kinase C (PKC) - and downregulation of PKC by preincubation of phorbol 12-myristate 13-acetate significantly inhibited the UVC-induced PLD activity. UVC-stimulated PLD activity was observed only in murine PLD2 (mPLD2)-transfected Vero 76 cells and not in human PLD1 (hPLD1)-transfected cells. Tran-sient incorporation of PKC with mPLD2 and the phosphorylation of mPLD2 byα and β forms of PKC by UVC irradiation were observed. These results suggest that the UVC-stimulated PLD activity in Vero 76 cells is mediated through transient phosphor-ylation of PLD2 by the translocation of PKC to PLD2.
金成烈 西原大學校 1986 西原大學 論文集 Vol.17 No.-
As an individual or a member of school organization, teacher acts primarily in self-interest. This behavior tendency for self-interest also emerges in the relations to other teachers. He acts in cooperation with the men who can share the benefits with together and he checks and restrains the men contrary to him. Also he will not put on behaviors which other peoples dislike, and which are not accepted by other peoples. There are three accommodation modes to the bureacucratic pressure: upward mobiles, indifferents and ambivalents. Upward mobiles are identified as those inddividuals who embrace their organizations' goals. The organizational values are their values, therefore, in any situation, especially in conflict situations, organizational values are decisive. Indifferents comprise the most common accommodation mode. They reject the organizational values of success power. Their orientation essentially is extravocational and outside the organization. They seperate work from the more meaningful aspects of their lives. Ambivalents usually are a small minority who cannot risit the organizaton; yet they fail to gain organizational power and success. They need security, but they cannot make the accommodations necessary to achieve it. They have an aggresive sense of individuality that typically does not fit into the bureauracy's structured field. There are two styles of individual accommodations to the conflict between professional and organizational commitment : cosmopolitans and locals. Cosmopolitans have low loyalty to the employing organization,high ommitment to specialized role skills, and are likely to use an outer reference group. Locals have high loyalty to the employing organization, low commitment to specialized role skills, and are likely to use an inner reference group. Teacher as a professional of education acts in altruism . Hence it can be told that teacher behaves in self-interest and altruism. And teacher has two roles to his students: the professional to the clients and the leader to the followers.