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박정호,김민준 한국정보통신학회 1999 한국정보통신학회논문지 Vol.3 No.1
구형도파관 slot 안테나는 그 구조가 간단하고, 고효율, 고신뢰성 및 소형 제작이 가능한 이유로 많은 Radar 분야와 마이크로파 통신 분야에서 그 응용 분야가 확대되고 있다. 도파관 벽에 형성된 slot은 도파관 내부 도체의 전류를 차단하여 전자파를 자유공간으로 복사한다. 그러므로 슬랏의 경사각도, 절삭깊이, 슬랏폭, 슬랏 길이 등이 안테나 특성 변화의 중요한 변수가 된다. 이러한 slot에 대한 이론적 해석의 어려움으로 인하여 주로 실험적으로 측정된 데이터를 이용한 설계와 제작이 이루어져 왔다. 본 논문에서는 slot의 전계 분포로부터 복사되는 복사전력 및 모드 전류 계산에 의해 slot 어드미턴스를 구하고, 공진길이 및 절삭깊이, 경사각도 등을 계산할 수 있는 표를 완성함과 더불어 동일 slot을 유한요소법을 사용하는 상용 소프트웨어(HFSS)를 사용하여 해석하는 방법을 동시에 수행하여 해석 결과를 기존 문헌의 측정 결과와 비교하므로서 적절한 해석 방법을 찾아내고자 한다. Rectangular waveguide slot antenna which has simple structure, high efficiency, high trust and small size, is extending in a field of application such as many Radar and Microwave communication. A slot cut into a wall of waveguide is propagated electromagnetic wave to free space it interrtupts the flow of current inner conductor of waveguide. Therefore incident of slot, cutdepth, width, length, i.e. are important parameter of characteristic change of the slot antenna. Result from difficulty of theoretical analysis about slot frequently experimental measured data useful design and manufacture have been accomplished. In this paper, we find the suitable method of analysis that compare two analysis results with measured result of established literature - admittance of slot be solved by propagated power from electric field distribution of slot and mode current computation and accomplishment of computable chart which hasresonant length and cutdepth, incident of slot, i.e. and use the HFSS which applyed finite-element method obtain equal slot analyed method.
병원 간호조직의 효과성에 영향을 미치는 요인에 관한 연구
박정호,김금순,박광옥 한국간호과학회 1986 Journal of Korean Academy of Nursing Vol.36 No.8
The purpose of this study was to identify the factors which influence the effectiveness of nursing organization in the hospital. The data were collected by employing Delphi technique in a series of three rounds from June 15, 1985 to January 31, 1986. In each round the responses to questionnaires were analyzed and the results were communicated back to the subjects. Finally consensed among subjects in identification of the 45 items which influence the effectiveness of nursing organization in the hospital. The 48 items were reduced to 6 factors and named; planning, organization and problem-solving, staffing and staff developing, supporting, evaluating-controlling and leading, and the number of items included for each factor were 14,14,8,5,3,2 and respectively. Among the 48 items, 2 items were not loaded on forementioned 6 factors because factor loading was below 0.3.
수술후 병원 감염 발생과 입원일수 및 수술 소요 시간과의 관계
박정호,윤혜상 한국간호과학회 1986 Journal of Korean Academy of Nursing Vol.36 No.8
This study was aimed to observe the incidences and types of hospital infections and to compare the length of hospitalization and of the operation between the infected Patients and those of non-infected after the operations. The subject of study were 465 patients who had been operated surgically in a University Hospital from March 1 to April 30, 1985. The data were collected by reviewing medical charts of subjects. The criteria to diagnose hospital infection for this study had been revised the one utilized at University of Virginia Hospital in the U.S. Summary of the results were as follows: 1. The incidence rate of hospital infection was 6 %. The type of infection with higher incidence rate in order were wound infection(28.5%)urinary infection(28.5%), fever of unknown origin (25%) and septicemia (18%). 2. There was a statistically significant difference in the duration of hospitalization between the patient group without it (t=265.2, p<0.005). 3. There was a statistically significant difference in the duration of operation between the patient group with it (t=75.0, p<0.005).
컴퓨터 통신망과 PDA(휴대용개인정보단말기)를 이용한 가정간호정보시스템 개발
박정호,박성애,윤순녕,강성례 한국간호과학회 2004 Journal of Korean Academy of Nursing Vol.34 No.2
The purpose of this study was to develop a home care nursing network system for operating home care effectively and efficiently by utilizing a wire-wireless network and mobile computing in order to record and send patients' data in real time, and by combining the headquarter office and the local offices with home care nurses over the Internet. It complements the preceding research from1999 by adding home care nursing standard guidelines and upgrading the PDA program. Method/1 and Prototyping were adopted to develop the main network system. The detailed research process is as follows : 1)home care nursing standard guidelines for Diabetes, cancer and peritoneal-dialysis were added in 12 domains of nursing problem fields with nursing assessment/intervention algorithms. 2) complementing the PDA program was done by omitting and integrating the home care nursing algorhythm path which is unnecessary and duplicated. Also, upgrading the PDA system was done by utilizing the machinery and tools where the PDA and the data transmission modem are integrated, CDMX-1X base construction, in order to reduce a transmission error or transmission failure.
회전근개 파열을 가진 환자에서의 상완 이두근 장두의 기능에 대한 근전도 분석
박정호,은진석 고신대학교 의학부 2001 高神大學校 醫學部 論文集 Vol.16 No.1
Background/Objective The biceps has been postulated to be a dynamic stabilizer of the glenohumeral joint and depressor of the humeral head This study was done to measure the EMG activity of the long head of the biceps in those subjects with rotator cuff tears and define the role of the biceps in cuff-injuried shoulder. Methods Twelve subjects with positive findings indicating rotator cuff tears were selected. Preoperatively, each subjects underwent EMG analysis of the long head of the biceps and supraspinatus using the contralateral uninjuried ten shoulder as a control with normal cuff integrity by history and examination Each EMG record was expressed as a percentage of the activity(Root Mean Square) recorded during 30. 60. 90. 120 degree abduction on scapula plane, Results In rotator cuff. long head of the biceps was demonstrated a significantly great degree of EMG activity in whole range of abduction compared to the contralateral uninjuried shoulder(p<0.05) Supraspinatus was expressed a decreased EMG activity on cuff-tears compared to the uninjuried, but it's insignificant(p>0.05). Conclusion This study suggests that the lateal head of the biceps may be a greater contributor to abduction and flexion in compromised shoulder than in the normal shoulder Therefore, EMG finding of long head of the biceps with rotator cuff tears has to be considered significantly as well as EMG of rotator cuff.