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.

일가족에 발생한 Microsporum canis 감염증

서무규,성열오,윤기상,하경임 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

Microsporum (M.)canis 감염은 애완용으로 기르는 고양이나 개가 주된 감염원이며 두부 백선, 안면백선 및 체부 백선 등의 피부질환을 일으킨다. 특히 M. canis 가족감염예는 M. canis 감염증중 비교적 드물다. 저자들은 전형적인 임상 및 균학적 양상을 보인 고양이로부터 감염된 M. canis 가족예를 경험하고 문헌고찰과 함께 보고한다. Microsporum canis Infections Occurring in a Family Departments of Dermatology & Clinical Pathology, College of Medicine, Dongguk University Moo Kyu Suh M.D., Yeol Oh Sung M.D., Ki Seong Yoon M.D., Gyoung Yim Ha M.D." We report a case of Microsporum (M.) canis infections occurring in a family. The mother, a son and a daughter had multiple, wen defined, round, scaly erythematous patches on the scalp & face, face & trunk, and face & chest respectively. Culture from skin lesion of patients and an infected kitten on Sabouraud dextrose agar showed M. canis. After 15 days to one month administration of itraconazole, the lesins healed leaving a slight hypopigmentation.

유기농 및 관행 재배 벼 미강의 항산화 활성 분석

최장열,이성진 全南大學校 農業科學技術硏究所 2011 農業科學技術硏究 Vol.46 No.-

To compare antioxidant activities between organic and conventional cultivation of rice bran, three kinds of rice species-Hopum, Hopyeong, and Yungwang-were selected and cultivated in Chonnam province. After cultivation, rice bran was extracted with 70% methanol and analyzed protective activity against oxidative stress induced-cell death and antioxidant activities such as inhibition of intracellular reactive oxygen species (ROS) generation and lipid peroxidation in hepatocellular carcinoma HepG2 cells. When HepG2 cells were treated with three kinds of rice bran extracts for 24 h and followed by the treatment of 1 mM H2O2, organic Hopum and Hopyeong rice bran showed the higher protective activities against oxidative stress induced-cell death than their conventional cultivated rice brans. Yungkwang rice bran did not showed the difference between organic cultivation and conventional cultivation. Organic Hopum, Hopyeong, and Yungkwang rice bran extracts reduced the intracellular ROS generation induced by 1 mM H2O2 more efficiently than their conventional-cultivated rice bran extracts. However, tested rice bran extracts did not show the strong protective effects on lipid peroxidation. From the study, organic Hopum and Hopyeong rice bran extracts showed the higher antioxidant activities than their conventional cultivations and these results indicate that even though phytonutrient contents of rice bran were not measured, significant difference between two cultivation practices were evident.

경남지역 벼 친환경재배시 고품질 유색미 생산을 위한 적정 품종

김상열,한상익,오성환,이종희,권영업 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

CFRP Sheet 감싸기로 구속된 원형 콘크리트 기둥의 보강효과에 관한 연구

박상렬,김문관,고광민,홍성룡 제주대학교 해양과환경연구소 2006 해양과환경연구소 연구논문집 Vol.30 No.2

정신분열병 환자들의 自己灣入에 관한 예비 연구

박성봉,김영미,전성일,이기철,김영훈,정영조,이영렬,이정호,최영민 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.6

목 적 : 정 신분열병 환자의 자기만입 정도에 영향을 미치는 인구학적 변인들 및 질병연관 변인들을 규명해 보고자 하였다. 또한. 환자들의 자기만입과 병식 사이의 연관성. 자기만입과 자존심 사이의 연관성을 알아보고자 하였다. 방 법 : 정신과 의사가 병록지와 면담을 통하여 대상 정신분열병 환자들의 인구학적 변인들 및 질병연관 변인들에 관한 자료를 얻고 환자들의 병식 정도를 평가한 후, 환자들로 하여금 자기보고형의 자기만입 척도와 자존심 척도를 시행하게 하였다. 총 111명의 환자가 연구대상으로 선택되었다. 결과: . 1) 여자가 남자보다 유의하게 높은 자기만입 척도 점수를 나타내었다 2) 질병연관 변인들 중 하위집단 사이에 자기만입 척도 점수의 유의한 차이를 보이는 변은 없었다. 3) 자기만입 척도 점수와 병식 점수 사이에 유의한 상관관계가 없었다. 4) 자기만입 척도 점수와 자존심 척도 점수 사이에 유의한 역상관 관계를 보였다. 결 론 : 본 예비 연구의 결과로 보아 정신분열 병 환자의 병식이 부족한 상태에서도 자기만입이 진행될 수 있으며. 자기만입이 심할수록 환자의 자존심이 저하되는 것으로 생각된다. 또한 여자 환자들이 남자 환자들보다 자기만입에 더 취약한 것으로 생각된다. 따라서 정신분열 병 환자의 이해와 치료를 위하여 자기만입에 관한 지속적인 연구가 필요할 것으로 생각된다. objective : This study was conducted to identify demographic variables and illness related variables which may affect the severity of self-engulfment in the patients with schizophrenia. We also studied the relationship between self-engulfment and insight, and the relationship between self-engulfment and self-esteem. Methods : Data on demographic variables and illness related variables for the subjects were gathered from hospital records and clinical interviews by the psychiatrists. Degree of insight for the subjects was assessed through clinical interviews by the psychiatrists. Degree of self-engulfment and self-esteem for the subjects was assessed from the self-engulfment scale and the self-esteem scale respectively. A total of 111 patients with schizophrenia were selected for statistical analysis. Results 1) The females exhibited significantly higher scores than the males on the self-engulfment scale. 2) There was no illness related variable, which exhibited a significant difference among subgroups on the self-engulfment scale. 3) There was no significant correlation between the self-engulfment scores and the insight 4) There was a significantly inverse correlation between the self-engulfment scores and the self-esteem scores. Conclusion : The results of this preliminary study suggest that self-engulfment may develop despite lack of insight and that there was inverse relationship between self-engulfment and self-esteem in the patients with schizophrenia. It also suggests that females are more subject to self-engulfment than males. So, authors suggest that it is valuable to do further studies of self-engulfment in the patients with schizophrenia.

DSP를 이용한 비선형 타이밍벨트 구동시스템의 QLQG/LTR 제어

한성익,방두열 한국공작기계학회 2001 한국생산제조학회지 Vol.10 No.4

In this paper, the QLQG/LTR control method is applied for the position control of the nonlinear timing belt diving sys-tem. Parameters of the plant are identified by genetic algorithm and nonlinear elements, such as Coulomb friction and dead-zone, are quasi-linearized by RIDF method. Comparing with the LQG/LTR control, the QLQG/LTR has similar structures of the LQG/LTR, but this method can consider nonlinear effects in designing the controller. Thus, the QLQG/LTR control system is robust to hard nonlinearities such as Coulomb friction. dead-zone, etc. For a given hard non-linear system, through experiments, it is shown that the tracking performance of the QLQV/LTR control system can be very improved than the LQG/LTR control system.

E-business가 지식경영활동에 미치는 영향

방호열,김성호 국제무역학회 2002 국제무역연구 Vol.8 No.1

E-business가 지식경영에 미치는 영향을 파악하고 하는 것이 본 연구의 목적이다. 이를 위해서는 E-business를 세 가지의 차원(E-business 발전단계, E-business 전략, E-business 정보시스템)으로 분류를 하였고, 지식경영활동은 지식이전·지식활용의 차원으로 분류를 하여 분석을 실시하였다. 연구의 모형은 E-business가 지식이전에 영향을 미치고 지식 이전은 지식활용에 영향을 미친다라고 설정을 하였다. 제시된 가설을 분석한 결과는 다음과 같다. E-business의 발전단계와 정보시스템은 지식이전에 부분적으로 영향을 미치고 지식이전은 지식활용에 있어서 부분적으로 영향을 미치는 것으로 나타났다. The purpose of this study is that E-business affects knowledge management. To achieve E-business suggests three dimensions(E-business development stages, E-business strategy, E-business information system) and knowledge management activities do knowledge transfer application. The research model of this paper is that E-business affects knowledge transfer, knowledge transfer affects knowledge application. To test model survey research is conducted. Data gathered from Korea Manufacturing firms that adopted E-business. The empirical results show that E-business development stages and information system partially affect knowledge transfer, knowledge transfer also partially affects knowledge application.

특수간호단위와 일반간호단위의 간호업무별 작업부하 및 피로자각증상 조사

김성열,이성수,이병국 순천향대학교 산업의학연구소 1997 순천향산업의학 Vol.3 No.1

In order to investigate the level of workload of various nursing activity and the level of subjective symptom of fatigue of nurses who were engaged in special care unit and general nursing unit, 87 nurses were selected from one university hospital in Chunan Choognam. Because of personal reason, two nurses did not joined this study. The final study subject was 85 nurses who came from special nursing care unit such as intensive care unit and emergency room (42 nurses) and general nursing care unit such as general surgery ward, orthopedic surgery ward and neurosurgery ward (43 nurses). The period of this study was from January 16 to March 15, 1997. Structured questionnaire forms were provided to all study nurses to identify the level of workload of nursing activity (37 items) and the level of subjective symptoms of fatigue (31 items). As a part of evaluation of workload, heart rates of study subjects were measured with Polar Vantage XL heart rate monitors. The results of the study were as follows. 1. The mean score of questionnaire for the level of workload in special nursing unit were higher than those in general care unit in three different nursing activities (physical nursing activity, administrative nursing activity and functional nursing activity), but the statistical difference was observed only in the category of physical nursing activity(p<0.05). 2. In the physical nursing activity and functional nursing activity, the mean score for the level of workload of nurses with proper rest was lower than those without proper rest before regular duty(p<0.05). 3. The mean score of questionnaire for the level of subjective symptom of fatigue in special nursing unit were higher than those in general care unit in three different symptom categories (physical symptom, mental symptom and neurosensory symptom), but the statistical differences were observed only in the category of physical symptom and neurosensory symptom (p<0.05). The characteristie of fatigue symptom of study group was revealed as B dominant type which is night duty type. 4. The mean score of fatigue symptom of nurses who thought their work was overloaded were higher than those whose workload was adequate in neurosensory symptom (p<0.05). The mean score of fatigue symptom of satisfied nurses with their job were lower than those who were not satisfied with their job in all three cateogory symptoms. 5. The mean heart rates(beats per minute) of resting state and working state of special care unit were 75.6±7.7 and 90.4±7.4, whereas those of general care unit were 75.8±8.3 and 89.7±9.5, respectively. 6. There was statistical correlation between the level of workload of nursing activity and the subjective symptom level of fatigue (r=0.2301, p<0.05), but the working heart rate of study nurse and the heart rate difference (working heart rate - resting heart rate) did not correlate with above two variables (workload and symptom level of fatigue).

자원준거시각에서 정보기술자원이 전자상거래의 전략적 편익과 성과에 미치는 영향

방호열,김성호 국제무역학회 2004 국제무역연구 Vol.10 No.2

본 연구의 목적은 정보기술자원이 전자상거래의 전략적 효과성과 기업의 성과에 미치는 영향을 파악하는 것이다. 이와 더불어 전자상거래를 수행하는 기업의 성과에 전자상거래의 전략적 효과성이 어떠한 영향을 미치는지를 파악하고자 한다. 본 연구에서는 정보기술자원을 유형자원, 무형자원, 기업능력으로 나누어 제시를 하였다. 그리고 전자상거래 수행 기업이 얻을 수 있는 전략적 효과성으로는 비용중심, 투자중심, 서비스중심, 수익중심의 차원을 제시하였다. 연구목적으로 달성하기 위하여 연구모형과 관련 가설을 제시하였다. 연구대상은 국내 제조기업 중에서 전자상거래를 수행하고 있는 기업이고 설문조사기법을 이용하여 자료를 수집하였다. 연구모형에 적합한 분석기법을 이용하여 연구모형을 분석한 결과는 다음과 같다. 전자상거래의 전략적 효과성 중에서 서비스 중심에 대하여 정보기술자원이 정의 영향을 미치는 것으로 나타났고 정보기술자원은 기업성과에 정의 영향을 미치는 것으로 나타났다. 전자상거래의 전략적 효과성 중에서 서비스 중심이 기업성과에 정에 영향을 주는 것으로 나타났다. The object of this study is to explore information technology resource affecting strategic benefits of electronic commerce and firms' performance. The other object is to explore benefits of electronic commerce affecting firms' performance. We propose that information technology resources composed tangible resources, intangible resources, firms capabilities. Strategic benefits of electronic commerce consist of service center, investment center, cost center, profit center. We proposed research model and related hypothesis. To test hypothesis of this study data are collected from manufacturing company in Korea by survey research. We analyse the research model by adequate statistical method. The result are as follows: (1) information technology resources affect service center of strategic benefits (2) information technology resources affect firms' performance. (3) service center of strategic benefits affects firms' performance.