무질서한 퍼텐셜 안의 전자 상태 국소화에 대한 간략한 소개

황정운 한국물리학회 2021 새물리 Vol.71 No.7

In this short review, we will introduce disorder-induced localization of electronic states, which is known as Anderson localization. Also, we will introduce the concept of a mobility edge, which is the boundary between localized states and extended states in energy space, by using amorphous semiconductors as a typical example of disordered potentials. By employing the non-equilibrium Green’s function method, we investigate the quantum transport property of a 1-dimensional chain of quantum dots with a size distribution. Finally, we will introduce a way to identify the mobility edge in an electronic structure perspective. 본 리뷰에서는 무질서한 퍼텐셜에 의해 전자 상태가 공간적으로 국소화되는 현상인 앤더슨 국소화에대하여 간단히 소개한다. 또한 무질서한 퍼텐셜의 전형으로 생각할 수 있는 비정질 반도체를 예로 들어에너지 공간에서 국소화된 상태와 비국소화된 상태를 나누는 이동도 경계를 소개한다. 비평형 그린함수방법을 이용하여 크기가 균일하지 않은 양자점으로 이루어진 1차원 시스템의 양자수송 특성을 조사하고여기서 나타나는 전자 상태 국소화에 대하여 이야기한다. 마지막으로 전자구조계산 관점에서 비정질반도체의 이동도 경계를 추정하는 방법에 대하여 소개한다.

Krukenberg氏 腫瘍의 二例

黃政雲,姜甲年,吳仁赫,韓沁錫 대한의학협회 1962 대한의학협회지 Vol.5 No.4

IPA방법을 이용한 TBSS 유형 및 특성에 따른 중요도와 만족도 분석

황정운,하병천,윤주옥 한국서비스경영학회 2019 서비스경영학회지 Vol.20 No.5

The purpose of this paper is to analyze through the TBSS the importance and satisfaction of customer responses in five characteristics of convenience, playfulness, economy, reliability, and risk. TBSS types were designed as pure and standardized, pure and custom, mixed and standard, mixed and customized scenario, based on the TBSS service experience. Using IPA importance-satisfaction matrix, the service positions in possible overkill, keep up the good work, low priority, and concentrate here were analyzed according to the TBSS's traits. Unlike previous studies, this study investigates the importance and satisfaction applying TBSS's five traits and four types together, examining the differences according to general characteristics. Implications and provided for the current TBSS's possible overkill, keep up the good work, low priority, and concentrate here, offering a direction of customer needs based TBSS design and recognizing customers' importance

화농성 병소에서 분리된 포도구균의 병원성에 관한 연구

최대경,이윤호,정승태,한국형,김기호,황정운 대한감염학회 1986 감염 Vol.18 No.1

The author has studied the pathogenecity of staphylococci isolated from 96 patient in Eul Ji General Hospital and nose of 50 medical and 50 nursing students in Chungnam National University. The results obtained were as follows: 1) In the staphylococci isolated from 96 patients, Staphylococcus aures and Staphylococcus epidermidis were 59.4%, 32.3% respectively. In the staphylococci isolated from nose of medical and nursing students, Staphylococcus aures was 15.4% and Staphylococcus epidermidis was 68.4%. 2) In the biotype of staphylococci isolated from patients, the rate of biotype 1 was 93.5%. 3) In the biotype 1 of Staphyloccus epidermidis isolated from patients and control groups, enzymatic activities were more active than other biotypes. 4) Crystal violet ring test of Staphylococcus epidermidis isolated from patients, biotype 1 was WR type 24.2%, SR type 72.4% and DR type 3.4%. 5) In the antibiotic test of Staphylococcus aures was resitant to Gentamycin 97%, Penicillin 79% and Staphylococcus epidermidis was resitant to Gentamycin 87%, Penicillin 84%. 6) In the multiple antibiotic resistance of staphylococci isolated from patients, Staphylococcus aures was resistant to 2 antibiotics 35.1%, 3 antibiotics 17.5%, 5 antibiotics 15.8% and Staphylococcus epidermidis was resistant to 3 antibiotics 32.3%, 4 antibiotics 19.4%, 5 antibiotics 16.1%.

물리교육과 신임교수의 교사교육자로서 역할에 관한 셀프스터디

황정운(Jeongwoon Hwang),최재혁(Jaehyeok Choi) 한국물리학회 2022 새물리 Vol.72 No.10

본 연구는 사범대학 물리교육과 신임교수인 물리학자가 교사교육자로서 역할을 구체화하는 과정에 관한 셀프스터디이다. 사범대학의 교사양성 교육과정은 이에 대한 경험이 전무한 ‘나’에게 낯설었고, 처음 하게 되는 물리학 강의는 물리학 연구자로서 내가 가진 경험을 바탕으로 준비하였다. 한편, 임용 직후부터 교사교육자로서 막연히 예비교사들에게 좋은 롤 모델이 되고자 하였다. 본 연구에서 낯섦은 나와 전공과목 강의자로서 나, 교사교육자로서 나의 역할을 분명하게 하는 중요한 출발점이었다. 낯선 환경은 내가 교사교육과정을 비판적으로 보고 이를 개선하는 방향을 모색하게 했으며, 내가 나와 학생들을 깊이있게 이해하고자 노력하게 하는 계기를 주었다. 이를 통해 나의 학생인 예비교사들에 대한 이해가 분명해지면서 스스로 정한 교사교육자로서의 역할도 구체화되었다. This is a self-study on specifying the role of a teacher educator who was a junior faculty in a department of physics education at the college of education. I was unfamiliar with the curriculum for physics preservice teachers owing to having no prior relevant experience. I prepared my first physics lecture at the university based on my experience as a physics researcher. Meanwhile, as a teacher educator, I wanted to be a good role model for the preservice teachers. In this study, the unfamiliarity became an critical starting point for me to clarify my role as a physics major lecturer and as a teacher educator. The unfamiliar environment allowed me to critically evaluate the curriculum of the department of physics education and explore different ways to improve it. Additionally, it has provided me the opportunity to understand myself as well as my students in depth. This made my understanding of students as a preservice teacher clear, thus allowing me to embody the self-appointed role of a teacher educator.

급성실혈시의 회장운동과 흡수기능

황정운(Hwang, Jeong-Woon) 대한생리학회 1973 대한생리학회지 Vol.7 No.2

The influences of the acute hemorrhage on the intestinal functions were studied in the rabbits subjected to acute bleeding, amounting 1.5-2% of the body weight. The motility and the absorptive capacity of the ileum were compared before and after the bleeding. Transfusion of shed blood was also performed in order to see whether the deteriorations were reversible or not. The tension developed in the direction of the longitudinal axis of the ileum was recorded through an appropriate transducer, and the frequency of the rhythmic contraction was counted throughout the procedure. Test solution, 10ml in amount, was placed in the loop of the ileum, and the samples were drawn at zero time and at 20 minutes. Triplicated procedures were repeated on the same loop;namely, before and after bleeding and after transfusion. The test solution was composed of 200 mg% urea, 218 mEq/l of NaCl and 150 mg% of polyethylene glycol (PEG) No. 4,000 in distilled water. The latter substance was used as a marker substance for the volume change of the loop. The results obtained were as follows; 1. The motility of the ileum suffered little effects by acute hemorrhage. However, minor fluctuations were seen in the frequency of the rhythm, showing a slight tendency of decreasing rhythmicity, and it was reversed by transfusion. 2. Diminution of absorptive capacity of urea was noticed in acute hemorrhage and it was interpreted as the consequence of the secondary effect of the retardation of the active transport mechanism governing the sodium transport 3. Absorption rate of the sodium ion was dropped in the hemorrhage, suggesting the indispensable need of the blood supply. 4. Osmolarity of the luminal fluid remained higher in the case of acute hemorrhage. 5. There was a tendency of retaining more fluid in the intestinal lumen in acute hemorrhage, comparing with that observed prior to the bleeding. 6. The deteriorations in the absorptive capacity were restored by transfusion of shed blood.

무산증 및 저산증의 임상증상에 관한 검토

황정운 ( Chung Woon Hwang ) 대한내과학회 1965 대한내과학회지 Vol.8 No.4

한국인 당뇨병의 역학적 연구-제 3 편 도시주민의 당뇨병 발생빈도

김응진,황정운 대한당뇨병학회 1974 Diabetes and Metabolism Journal Vol.2 No.1

의료사각지대 해소를 위한 'Ko-medi' 프로세스 구축

박소연,이경한,황정운,이예린,손민정 한국품질경영학회 2021 한국품질경영학회 학술대회 Vol.2021 No.-

현대 의료기술이 발전함에 따라 국민들은 더 나은 품질의 의료서비스를 제공받을 수 있게 되었다. 하지만 선진화된 의료서비스가 대도시, 혹은 수도권 지역에 국한되어 있어 촌락지역과의 의료격차가 심각하다는 문제가 제기되어 왔다. 따라서 본 연구는 지역 간 의료격차를 해소하기 위해 'ICT 기술을 활용한 원격진료프로세스'에 대해 고찰하였다. 제시하고자 하는 전반적인 프로세스는 기존의 비대면 원격진료앱인 닥터나우를 따른다. 이후 닥터나우가 직면한 현실적 문제를 지적하고 ‘풀필먼트 원격의료서비스 시스템’을 통해 이를 개선하고자 한다. 먼저, 촌락의 보건지소에 원격진료 설비를 구축한 후 진료와 처방단계에서 의사와의 화상 원격 진료과정을 거친다. 이후 약처방 단계에서는 보건지소를 통해 제조 및 배분을 한다. 진료 받은 항목과 처방약은 클라우드에 저장되어 새로운 진료를 받게 되면 다른 의사가 손쉽게 처방이력과 진료일정을 확인할 수 있는 시스템을 갖춘다. 본 연구진은 이 프로세스의 비용효율성을 따지기 위해 회귀분석을 진행하였다. 개선된 원격진료 프로세스는 쉽게 대형병원에 가기 힘든 촌락지역 거주민들을 대상으로 의료격차 문제를 완화하고, 나아가 고령화 시대 의료 분야의 뉴노멀이 될 수 있다.

근거 중심 Kampo medicine 임상진료지침의 현황

사사키 유이,황정운,김경한,박유리,심호종,박동선,전윤정,김지환,장보형,신용철,고성규,Sasaki, Yui,Huang, Ching Wen,Kim, Kyeong Han,Park, Yu Lee,Shim, Ho Jong,Park, Dong Sun,Jeon, Yoon Jeong,Kim, Ji-Hwan,Jang, Bo-Hyoung,Shin, Yong-Cheol,Ko, 대한예방한의학회 2016 대한예방한의학회지 Vol.20 No.1

Objectives : In 2007, a survey of how Kampo was regarded in Japanese clinical practice guidelines (CPGs) was first conducted by the Special Committee for Evidence Based Medicine (EBM), namely the Japan Society for Oriental Medicine (JSOM). A manual for CPG development was also published in 2007 by the Japan Council for Quality Health Care, and the revised edition came out in 2014. The purpose this study is to review the current state in CPGs applied to Kampo after 2007, while focusing on how Kampo products being regarded evidence based branch of medicine by CPG developers. Methods : Sources include the Kampo CPGs website of Japan Society for Oriental Medicine (JSOM) and MINDS (Medical Information Network Distribution Service) website of Japan Council for Quality Health Care. Results : Among the 784 CPGs existing by the end of 2015, 91 CPGs were considered containing descriptions of Kampo. Furthermore, 28 type A Kampo CPG (KCPG) which had quality of evidence and strength of recommendation with references were found. Also, most of type A KCPGs relied on the MINDS Handbook for Clinical Practice Guideline Development that was published in 2007. Conclusions : The number of KCPGs are increasing yearly. However, there is still not much Kampo evidence found in CPGs in Japan. Overall, it could be said that we need to not only make evidence vertically but preach it horizontally well.