한센병 환자의 족저궤양과 최대 족저압력과의 관계

정도영,박경희,이강성 한국전문물리치료학회 2002 한국전문물리치료학회지 Vol.9 No.1

Foot ulceration results in substantial morbidity in patients with peripheral neuropathy. The purpose of this study was to find the relationship of plantar foot pressures during walking to plantar ulceration in patients with Hansen's disease. The subjects were recuruited from two Welfare Clinic for Hansen's disease in Wonju and Uiwang city. Ten subjects (5 females, 5 males) with plantar ulceration and a mean age of 63 years were evaluated in this study. The mean duration of Hansen's disease in these subjects was 30 years. Plantar pressures were measured during self-selected comfortable walking speed by using MatScan system. Three subjects had plantar ulceration under the first metatarsal head. Five subjects had plantar ulceration under the second and third metatarsal head. Two subjects had plantar ulcers under the fifth metatarsal head. Eight of 10 subjects had plantar ulceration at highest pressure point that measured during walking. This result suggests that the abnormal high plantar pressure could be related factor to plantar ulceration in patients with Hansen's disease. Also the foot pressure measurement may be useful to evaluate the risk of plantar ulceration in patients with Hansen's disease.

2상 HB형 Linear Stepping Motor의 정지정도 개선에 관한 연구

정의남,임윤희,이상교,이경호,송우창 三陟大學校 1999 論文集 Vol.32 No.1

A Linear Stepping Motor (LSM) can operate in an open loop control mode similarly to a rotary stepping motor. However, the LSM occur error between the actual mover position and the ideal position. In this paper, a position accuracy improvement method using an energy stored in winding inductance of the LPM is proposed.

중학교 과학영재 담당교사의 PCK 요소의 특징과 관련성

김선경,민희정,방은정,백성혜 韓國英才學會 2011 영재교육연구 Vol.21 No.4

중학교 과학영재 담당교사의 수업을 관찰하여 Pedagogical Content Knowledge(PCK)의 요소 를 분석하고, 요소간의 관련성을 알아보았다. 연구 대상은 대도시 지역의 중학생 대상 영재교 육원에서 과학을 가르치는 교사 4명이었으며, 전공은 각각 물리, 화학, 생물, 지구과학이고 2 명은 전임교사, 2명은 겸임교사였다. 또한 전임교사들은 영재학생들만 가르쳤고, 겸임교사들 은 보통 일반학생들을 가르쳤고, 특별히 주 1회 영재학생들을 가르쳤다. 수업관찰, 반구조화 된 인터뷰를 실시하였으며, 문서자료를 수집하여 질적으로 분석하였다. 연구 결과, 과학영재 담당교사의 PCK 요소의 몇 가지 특징이 나타났다. 교사들의 과학교수지향은 PCK의 요소들 과 긴밀하게 상호작용하고 있었다. 교사들의 교육과정지식은 교사에 따라 상이했지만, 학습 유형의 선택은 교사의 영재 교육 및 수업의 목표와 관련되어 있었다. 또한 이러한 교육과정 지식은 학생에 대한 이해의 영향을 받았다. 교사들은 교육과정지식과 학생에 대한 이해에 따 라 수업에서 서로 다른 교수전략을 사용하고 있었다. 또한 PCK의 요소들의 관계는 밀접했으 며 방향성을 가지고 있었다. 이러한 연구결과를 바탕으로 PCK의 요소와 관계성을 설명하기 위해 사면체 모델을 제안했다. In this study, we analyzed the characteristics of Pedagogical Content knowledge(PCK)'s components through actual course of teachers of science gifted students in the middle school. For this study, four middle school science teachers of gifted students belonging to the gifted education professional organizations in a metropolis were selected, each of them was physics, chemistry, biology, and earth science teacher. Two of them were full-time teachers to teach only gifted students and two were part-time teachers who had taught general students in ordinary time and specially had taught the gifted students once a week. Qualitative data were collected through classroom observations, interviews, and documents. As a result, some unique characteristics of PCK's components were identified. The teachers' orientations to teaching science were closely correlated with PCK's components. The teachers' knowledges of science curriculum were different individually. But the decisions about type of teaching(acceleration or enrichment) were connected with the objectives of gifted education and lesson objectives. Also, the teachers' knowledges of science curriculum were influenced by the knowledge of students' understanding. Teachers used different instructional strategies according to the knowledge of science curriculum and the knowledge of students' understanding. We found that PCK's components were so closely connected and could show the direction of relationships among those PCK's components. We suggested teachers' PCK model which was named "Tetrahedron Model of PCK", to explain the characteristics and relationships of PCK's components.

2.45GHz 대역 LTCC Balun-BPF의 설계

정을영,최경,황희용 강원대학교 산업기술연구소 2005 産業技術硏究 Vol.25 No.B

This paper presents a LTCC Balun-BPF, which is a BPF(band pass filter) with a Balun in a single LTCC chip for the direct interface with a MMIC chip having balanced inputs. The physical dimension of the designed Balun-BPF is 2.4x2.0x0.88 ㎣ and the used dielectric constant E_(r) is 36. A Balun of three-lines structure with striplines and a BPF of comb-line structure was combined into the Balun-BPF. The simulated result shows 4.8dB of insertion loss, 178~179 degree of the phase imbalance, 14dB of the return.

천연 포도과즙 발효용 식초산균 분리

최경호,정은희 대구효성가톨릭대학교 응용과학연구소 1998 응용과학연구논문집 Vol.6 No.2

포도과즙을 이용한 식초산 생산을 위하여 강한 증식력과 아울러 아황산 소다 및 poly phenol성 물질에 대한 내성을 지니고 산소 요구도가 낮은 발효균주가 요망되었다. 본 연구에서는 이러한 성질을 갖춘 우수한 식초산균을 분리하기 위하여 실험을 수행하였으며 탄산칼슘을 첨가한 ethanol배지와 포도과즙을 이용하여 여러 가지 재래초로부터 식초산균을 분리하였다. 분리균은 단간균 내지 타원형 세균으로 불규칙한 모양을 하고 있으며, 전체적인 모양은 대조군으로 사용한 Acetobacter aceti(KCTC 1010)와 비슷하였으나 크기의 차이가 있다. 분리균의 증식도는 대조균보다 현저히 빨랐으며 paper disc법으로 확인한 clear zone 생성능력(Acetic acid 생성 능력과 비례)은 분리균이 대조균보다 약 11%가 높았다. 분리균은 포도과즙을 산도 6.2%의 포도식초로 발효하였으며, 8일간의 발효과정중 pH는 3.8에서 3.5로 약간 저하되었다. HPLC분석에 따른 발효전과 발효 후의 유기산의 변화는 tartaric acid와 fumaric acid가 약간 증가되었으며, acetic acid는 약 2.5배 증가하여 전체 유기산의 90%이상을 차지하였고 총 유기산의 함량도 증가하였다. 이상의 결과로 본 실험에서 분리한 식초산균은 천연 포도과즙에서 빠르게 증식하여 고동도(6%이상)의 식초산을 생성할 뿐만아니라 pH와 색상의 변화가 적고 정치배양에도 잘 적응하는 우수한 포도식초 발효균으로 판정되었다. Experiments were carried out to isolate a bacterial strain for fermentation of alcoholic grape juice(low grade wine) to vinegar without any drastic changes in color of the products. Among eight strains of bacterium isolated from various sources, a bacterial strain was finally selected as the fermenting organism by using solid-ethanol medium. Cells of the bacterium were rod or ellipsoid-shaped. Microscopic morphology of the cells were very resembled to Acetobacter aceti(KCTC 1010) used as an control organism. The bacterium grew actively in grape juices after a lag phase for 2 hours, and produced acetic acid in accordance with it's growth. Wine vinegar containning 6.2% acetic acid and having typical flavor and color of grape fruit was produced by fermentation for 8 days. These results suggest that the isolated bacterium was an Acetobacter sp. and useful for fermentation of wine vinegar of good quality.

효과적인 유역관리를 위한 CN기법 기반의 침투량 산정 및 기저유출량 분석

김희원 ( Hee Won Kim ),신연주 ( Yeon Ju Sin ),최정헌 ( Jung Heon Choi ),강현우 ( Hyun Woo Kang ),류지철 ( Ji Chul Ryu ),임경재 ( Kyoung Jae Lim ) 한국물환경학회 2011 한국물환경학회지 Vol.27 No.4

Increased Non-permeable areas which have resulted from civilization reduce the volume of groundwater infiltration that is one of the important factors causing water shortage during a dry season. Thus, seeking the efficient method to analyze the volume of groundwater in accurate should be needed to solve water shortage problems. In this study, two different watersheds were selected and precipitation, soil group, and land use were surveyed in a particular year in order to figure out the accuracy of estimated infiltration recharge ratio compared to Web-based Hydrograph Analysis Tool (WHAT), The volume of groundwater was estimated considering Antecedent soil Moisture Condition (AMC) and Curve Number (CN) using Long Term Hydrologic Impact Assessment (L-TH1A) model. The results of this study showed that in the case of Kyoung-an watershed, the volume of both infiltration and baseflow seperated from WHAT was 46.99% in 2006 and 33.68% in 2007 each and in Do-am watershed the volume of both infiltration and baseflow was 33.48% in 2004 and 23.65% in 2005 respectively. L-TFIIA requires only simple data (i.e., land uses, soils, and precipitation) to simulate the accurate volume of groundwater. Therefore, with convenient way of L-TKIA, researchers can manage watershed more effectively than doing it with other models. L-THIA has limitations that it neglects the contributions of snowfall to precipitation. So, to estimate more accurate assessment of the long term hydrological impacts including groundwater with L-THIA, further researches about snowfall data in winter should be considered.

고관절 전치환술시 응용프로그램을 이용한 수술 전 계획

원중희,김용민,최의성,손현철,박경진,남기세,정재중 대한고관절학회 2003 Hip and Pelvis Vol.15 No.3

악성 혈액질환에서 성공적인 동종골수이식 후 숙주 기질 미세환경의 구축

조상희,이제중,남찬은,최경상,정익주,이일권,김진희,박종태,김형준 대한조혈모세포이식학회 2002 대한조혈모세포이식학회지 Vol.7 No.1

인체의 골수는 간엽모세포를 함유하고 있으며 이들은 골수미세환경의 주된 세포들로 분화가 가능하여 조혈기능을 지지한다. 본 연구에서는 성별이 다른 동종조혈모세포이식 환경에서 조혈모세포의 완전 생착을 보이고, 이식 후 1년에서 8년이 지난 11예의 재생불량성 빈혈 및 백혈병 환자들을 대상으로 하여 골수에서 MSC를 분리하고 체외 확장을 통해 배양된 MSC에서 X 염색체 탐식자를 이용한 FISH 및 microsatellite polymorphism PCR 기법으로 그 기원을 확인하였다. 그 결과 조혈모세포는 완전히 공여자 기원으로 대치되었음에도 불구하고 MSC는 모두 수여자 기원임을 알 수 있어, 동종조혈모세포이식에서 미세환경의 구축은 수여자의 자가 생산에 의한 골수 간질세포에 의한 것으로 생각된다. Background: Human bone marrow (BM) contains mesenchymal stem cells (MSC) that can differentiate into various cells of mesenchymal origin. It remains a matter of controversy whether donor-derived stromal cells are capable of engraftment following hematopoietic stem cell transplantation (HSCT) or not. Methods: To determine if donor-derived stromal cells are transferred to the recipients of allogeneic HSCT, we investigated the characterization of MSC in 11 patients 1 to 8 years after sex mis-matched allogeneic HSCT in severe aplastic anemia and leukemia. Results: All patients had complete engraftment with donor- derived stem cells as shown by detection of donor type DNA in peripheral blood mononuclear cells. Following culture, MSC showed the expression of SH2 and SH4, but none of the hematopoietic markers of CD14, CD34, or CD45. MSC which can be differentiated to osteogenic lineage showed the genotype of recipient completely using FISH or PCR analysis. Conclusion: This study confirmed that MSC isolated from recipients of allogeneic HSCT in severe aplastic anemia and leukemia are not of donor genotype despite of full hematopoietic engraftment with donor type. Donor cells did not contribute to reconstitute the marrow microenvironment.

STI571 (Glivec^(�))에 의하여 빠른 치료 반응을 보인 불응성 Gastrointestinal stromal tumor

윤경원,이제중,김여경,황호인,이병환,조상희,정익주,김형준 全南大醫大 2001 전남의대학술지 Vol.37 No.4

초등학생 감사에 대한 일 연구

이정희 ; 정경연 동의대학교 인문사회연구소 2011 인간과 문화 연구 Vol.18 No.-

본 연구는 최근 많은 주목을 받고 있는 긍정심리학의 한 분야인 감사에 대한 초등학생의 일반적 경향성을 알아보고자 하였다. 연구대상은 P시의 8개 초등학교 3,4,5,6학년 남학생 312명, 여학생 272명 총584명이었다. 결과는 다음과 같다. 첫째, 초등학생은 일상생활에서 주위 사람들로 부터 감사하다는 말을 88.3%이상 말하고, 82.2%이상으로 듣는 것으로 나타나 초등학생들은 일상생활에서 감사함을 자주 표현하는 것으로 드러났다. 또한 감사함을 느낄 때 ‘고맙다’라는 말을 하는 행위를 64.2%가 가장 많이 하는 것으로 나타났다. 둘째, 초등학생의 감사성향은 학년에 따라 차이가 없었지만 성별에 따라서는 차이가 있었다. 여학생의 감사성향이 남학생보다 높은 것으로 나타났다. 셋째, 평소 초등학생의 감사대상은 남학생은 엄마>아빠>형제>친구>할머니, 여학생은 엄마>아빠>형제>할머니>친구 순으로 나타났다. 평소 감사대상에 대한 감사이유는 남학생은 엄마는 밥해줘서, 아빠는 돈을 벌어 와서 감사하다는 이유가 가장 많았으며, 여학생은 엄마는 칭찬이나 인정을 해줘서 아빠는 돈을 벌어와서 감사하다는 이유가 가장 많아 감사이유에서도 남녀의 성차가 나타났다. 또한 지난 한 달간 감사대상으로 남학생과 여학생 모두 친구보다 아빠의 순위가 뒤여서 평소의 감사대상과 실제 생활에서의 감사대상이 차이가 있는 것으로 나타났다. 넷째, 감사성향과 교우관계, 학업정도, 건강상태, 감사하다는 말을 듣고 감사함을 말하기는 정적 상관으로 나타나 교우관계가 좋고, 건강상태가 양호하며, 평소 감사하다는 말을 듣고 감사함을 말하기를 자주 할수록 감사성향이 높은 것으로 나타났다. 결과를 바탕으로 초등학생의 긍정적인 사고와 적응을 위해 감사성향의 중요성을 논의하였다. This study aims at understanding the general tendency in elementary school students'gratitude, a branch of positive psychology that has drawn lots of the public attention recently. The target of this study is total 584 students in 8 schools in P city -- 312 male students and 272 female students ranging from the 3th to the 6th graders. The results are as follows. First, the elementary school students express their gratitude so often that more than 88.3% of them express their gratitude to others and 82.2% of them hear such words in their daily lives. Also, when they feel something grateful, the percentage of the most commonly used expression - "Thank you" - was 64.2%. Second, the variance in the tendency of their expressing gratitude to others is not dependant upon their grades but upon their genders. The tendency of expressing gratitude to others of the female students was proved to be higher than that of the male students. Third, the people to whom the elementary school students usually feel gratitude most frequently are, in case of male students, in the following order: mother> father> brothers or sisters> friends> grand parents; and, in case of the female students: mother>father>brothers or sisters>grand parents> friends. The reasons for the differences in their gratitude to them are that, in case of the male students, they thank their mothers for giving them meals, and, their fathers for making money; in case of the female students, they thank their mothers for giving them compliments or acknowledgements and, their fathers for making money, showing some differences according to gender. In addition, the investigation that had performed over the last month on the people to whom the elementary school students express their gratitude revealed that the order in expressing their gratitude according to frequency was mother > friend > father, showing that there were some differences between the people to whom they usually think they should express their gratitude and the people with whom they get along in the real circumstances. Fourth, The correlations among their tendencies of gratitude, peer relations, academic achievements, health, and their expressions upon hearing a word of gratefulness have been revealed to be static. Therefore, the importance of the tendencies of gratitude to others in terms of the positive psychology and the adaptation of elementary school students has been discussed.