병원 종합 물류시스템 운영에 대한 관련직원들의 인식

이광용 ( Kwang Yong Lee ),유승흠 ( Seoung Hum Yu ),손태용 ( Tae Yong Sohn ) 한국병원경영학회 1999 병원경영학회지 Vol.4 No.2

The purpose of this study is to identify influencing factors for successful introduction, implementation and management of HMRPS through assessment of the employees attitude toward HMRPS in technical, administrative, and organization behavioral areas. Data were collected from 157 HMRPS employee members' self-reporting questionnaire in three university hospitals in the city of Seoul and Kyonggi Province from November 5 to November 10, 1997. Relevant literature on industry company MPR system theory was reviewed to develop the theoretical framework. The results were as follows : The employee's recognition of tangible benefit were more significantly influenced success than intangible benefit for successful operation relating the HMRPS. Concerning the employee's recognition of the successful HMRPS and the factor of influenced success was significantly positive correlation between tangible and intangible benefits and success factor in technical, administrative, and organizational behavior area. This study showed that major factor affecting the employee's recognition of tangible and intangible benefit for successful HMRPS. For tangible benefits : Success factors in the technical areas were quality of the data and information, efficiency of inventory management and rescheduling of operation plan. Success factors in the administrative areas were : role of top management. Success factors in the organization behavioral areas were ; simplicity of the HMRPS, human resistance to change. For intangible benefits : Success factors in the organization behavioral areas were ; user involvement, simplicity of HMRPS, human resistance to change. Furthermore as the exact evaluation of successful factors of HMRPS implement is needed, research for the development of systemic variables of physical distribution system control, methods, capacity of system, duration and other environment in many of 30 hospitals or more, and for the empirical study for HMRPS.

Design of T-S(Takagi-Sugeno) Fuzzy Control Systems Under the Bound on the Output Energy

Kim, Kwang-Tae,Joh, Joog-Seon,Kwon, Woo-Hyen Institute of Control 1999 Transaction on control, automation and systems eng Vol.1 No.1

This paper presents a new T-S(Tae-Sugeno) fuzzy controller design method satisfying the output energy bound. Maximum output energy via a quadratic Lyapunov function to obtain the bound on output energy is derived. LMI(Linear Matrix Inequality) problems which satisfy an output energy bound for both of the continuous-time and discrete-time T-S fuzzy control system are also derived. Solving these LMIs simultaneously, we find a common symmetric positive definite matrix P which guarantees the global asymptotic stability of the system and stable feedback gains K's satisfying the output energy bound. A simple example demonstrates validity of the proposed design method.

Thermoelectric Properties of Bi2Te3 Film Processed by Electrodeposition

Lee, Kwang-Yong,Oh, Tae-Sung Research Institute of Science and Technology HONGI 2005 Hongik Journal of Science and Technology Vol.9 No.-

Thermoelectric properties of the electrodeposited Bi_(2)Te_(3) films have been investigated. Bi_(2)Te_(3) plating solution of 20 mM concentration was prepared by dissolving Bi_(2)O_(3) and TeO_(2) into 1M HNO_(3). Thermoelectric properties of the electroplated Bi_(2)Te_(3) films were changed with the film thickness, and the 40 μm-thick film exhibited Seebeck coefficient of -66 μV/K, electrical resistivity of 2.4 mΩ-cm, and power factor of 1.75x10^(-4) W/K^(2)-m. Using multilayer overhang process, the photoresist pattern to form thermoelectric legs of 30 μm depth and 100 μm diameter was successfully fabricated.

교통사고 후 신체 손상 환자의 외상후 스트레스장애에 대한 연구

강영수,김동인,이선미,김 임,김태형,은헌정 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.4

연구 목적 : 임상가를 위한 외상후스트레스장애 척도를 이용하여 교통 사고 후 신체 손상 환자의 외상후스트레스장애의 발병률을 알아보고, 사회인구학적 변인들, 손상 심각도, 불안, 우울과 외상후스트레스장애와의 상호관련성을 고찰하고자 하였다. 방 법 : 104명의 교통사고 환자들을 대상으로 , 자기 보고형인 사고 후 정신 건강에 관한 설문지와 외상후스트레스장애를 진단하기 위해서 임상가를 위한 외상후스트레스장애 척도를 이용하여 면담을 실시하였으며, 손상 심각도 척도를 이용하여 신체 손상의 정도를 측정하였다. 결 과 : 외상후스트레스장애의 발병률은 61.5%이었으며, 사회인구학적 변인들과 손상 심각도 점수에서는 외상후스트레스장애군과 비 외상후스트레스장애군이 유의한 차이를 나타내지 않았다. 그러나 외상후스트레스장애 군에 속한 사람들이 사고 당시에 사망자나 부상자를 목격한 경우가 의미있게 많았고(χ²=8.48, p<0.05). Beck의 우울점수가 외상후스트레스장애군에서 유의한 증가를 보였다.(t=5.03, p<0.05). 결 론 : 교통사고 후 외상후스트레스장애의 발병률은 매우 높았고, 두 집단 모두가 정상인 보다 훨씬 더 높은 불안과 우울을 보고하고 있다. 이와 함께 연구 결과는 상황에서 사망자와 부상자의 목격시 외상후스트레스장애로 발병하게 하는 위험 요인 중 하나 일 수 있다. Objectives : the authors attempted to estimate the incidence of posttraumatic stress disorder (PTSD) and the differences of sociodemographical feature, injury severity, depression and anxiety between PTSD and non-PTSD groups after motor vehicle accident. Methods : The subjects were 104 patients who had undergone motor vehicle accidents, and been hospitalized to orthopedic surgery hospitals. We administered them clinician-administered PTSD scale(CAPS) for diagnosing PTSD, injury severity scale(ISS) for identifying their physical injury, self-reported questionnaire made to identify socioepidemographic data, Beck Depression Inventory(BDI) for measuring depression, and State Trait Anxiety Inventory Ⅰ,Ⅱ(STAI-Ⅰ,Ⅱ) for measuring anxiety. Results : The incidence of PTSD in subjects was 61.5%. Most of sociodemographic factors were not different between PTSD and non-PTSD groups. Only there were significant differences between PTSD group and non-PTSD group on the cases that observed the dead or the wounded at the scene of motor vehicle accident(χ²=8.478, p<0.05) and BDI(t=5.03, p<0.05). Conclusion : These results indicate that prevalence of PTSD is higher after motor vehicle accident and both of the two groups report much higher depression and anxiety than normal population. In addition, the results of this study show that the observation of dead or wounded at accident situation can be one of risk factors to precipitate PTSD.

갑상선 종양의 Flow Cytometric DNA Ploidy 분석

김영태,김진만,서광선,배진선 대한병리학회 1995 Journal of Pathology and Translational Medicine Vol.29 No.2

뇌실내출혈로 인한 급성 수두증에서 관찰된 해리증후군

김광기,이경민,이정주,오종배,안태범,정상욱,남현우,박성호 대한신경과학회 1999 대한신경과학회지 Vol.17 No.5

HDPE 개질 아스팔트 혼합물의 강도 및 변형특성

김광우,이기호,권오선,고태영 강원대학교 부설 석재복합신소재 제품연구센터 2004 석재연 논문집 Vol.9 No.-

본 연구는 폐비닐 펠렛을 도로포장재료로 재활용하여 자원절약 및 아스팔트 혼합물의 품질향상을 위한 연구이다. 이를 위하여 폐비닐의 첨가량별 배합설계를 수행하여 적정 폐비닐 첨가량과 최적 아스팔트 함량으로 편마암과 화강암 2가지 골재와 폐비닐인 RHDPE의 함량을 4가지로 혼합물을 제작하여 8종류의 재질 혼합물과 2종류의 무개질 혼합물을 제작하였다. 그리고 이 공시체에 대하여 마샬안정도, 간접인장강도 및 Kim test와 반복주행시험 등 실내시험을 통하여 혼합물의 특성을 분석하였다. 폐비닐 첨가량은 RHDPE가 8%일 때 안정도와 간접인장강도 모두 가장 우수한 것으로 나타났고 취성도 나타나지 않았다. RHDPE를 첨가한 혼합물에 대하여 Kim test를 수행한 결과 DR과 DS 모두 높은 상관성을 보였다. 그리고 반복주행시험에서는 RHDPE를 첨가한 혼합물이 일반 혼합물보다 우수하였다. 향후 많은 실험을 통해 RHDPE의 우수성을 입증한다면 소성변형 저항성에 우수한 재료로 이용될 수 있을 것이다. This study is a fundamental research for recycled high-density polyethylene (RHDPE) in asphalt mixture for improving roadway pavement. Marshall mix design was conducted and optimum asphalt content(OAC) was determined for dense-graded surface course mixture by RHDPE content. Marshall stability test, indirect tensile strength (ITS) test, wheel tracking trest and Kim-test were carried out to measure the characteristics of RHDPE-added asphalt concretes. From the results of this study, RHDPE in asphalt mixture if possible. It could be considered that adding too much RHDPE in asphalt mixture is not proper. The optimum content of RHDPE was appeared to be 8%. In Kim-test, statistical analysis was performed for each loading head and aggregate to find out correlation between S_(D) values and each rut parameter. The analysis result showed that S_(D) had very high coefficient of determination with rut parameters on the average.

低速 高토크形 空氣壓 베인 모터 開發

황광성,김명규,정태상 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14

Air pressure Vane motor applied in this paper can be used very widely. Motor developed in domestic has about 80% efficiency of income product. Therefore, torque is increased because improve small size(1200rpm) Low-speed High torque type Air pressure Vane motor's quality of the material and special quality and do so that decelerate output and conclusion that consider and manufacture number of rotations and efficiency etc. Obtained results are summarized as follows: 1. Dust and corrosion can be reduced and 20% bulk of casing housing decreased by optimizing of alternated casing site. 2. Vane's wing optimum number is composed of 5 by Vane type wing and Gear Ratio's design choice and torque raised by eccentricity 28mm of rotor and cylinder and reduction of rpm (gear ratio 1/2.6). 3. Air pressure Vane motor's research and development connected with various output is judged that it is serious as for counter measure late.

경주두 도달법 및 척골 신경 전방 전위술을 통한 상완골 원위부 과간 골절의 치료

이광현,이성필,황규태,김주학 대한골절학회 2004 대한골절학회지 Vol.17 No.2

연속회분식반응조에서 유기물 부하와 질산염농도에 따른 생물학적 질소 및 인 제거 특성

김이태,이희자,김광수,배우근 한국물환경학회 2004 한국물환경학회지 Vol.20 No.6

Since anaerobic/anoxic/oxic process, which is a typical mainstream biological nitrogen and phosphorus removal process, utilizes influent organic matter as an external carbon source for phosphorus release in anaerobic or anoxic stage, influent COD/T-P ratio gives a strong influence on performance of phosphorus removal process. In this study, a bench scale experiment was carried out for SBR process to investigate nitrogen and phosphorus removal at various influent COD/T-P ratio and nitrate loadings of 23∼73 and 1.6∼14.3 g NO₃-N/㎏ MLSS, respectively. The phosphorus release and excess uptake in anoxic condition were very active at influent COD/T-P ratios of 44 and 73. However, its release and uptake was not obviously observed at COD/T-P ratio of 23. Consequently, phosphorus removal efficiency was decreased. In addition, the phosphorus release and uptake rate in anoxic condition increased as the nitrate loading decreased. Specific denitrification rate had significantly high correlation with organic materials and nitrate loadings of the anoxic phase too. The rate of phosphorus release and uptake in the anoxic condition were 0.08∼0.94 ㎏ S-P/㎏ MLSS·d and 0.012∼0.1 ㎏ S-P/㎏ MLSS·d, respectively.