매독항체 효소면역 검사시약 ‘동아 시필리스’의 평가

최수진,오흥범,오선영,황유성,이정환 大韓輸血學會 1999 大韓輸血學會誌 Vol.10 No.2

마이크로 엔드밀링에서 음향방출 신호를 이용한 상태감시

정연식,강익수,김전하,강명창,김정석,안중환 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-

Ultraprecision machining and MEMS technology have been taken more and more important position in machining of microparts. Micro endmilling is one of the prominent technology that has wide spectrum of application field ranging from macro parts to micro products. Also, the method of micro-grooving using micro endmilling is used widely owing to many merit, but has problems of precision and quality of products due to tool wear and tool fracture. This investigation deals with state monitoring using acoustic emission(AE) signal in the micro-grooving. Characteristic evaluation of AE raw signal, AE hit and frequency analysis for state monitoring is also presented in the paper.

식품영양분야의 심화교육 수요조사 : 부천 및 인천 지역을 중심으로 Focusing on Bucheon and Inchein Area

소명환,조신호,변기원,백재은,이수정 부천대학 2002 論文集 Vol.23 No.-

식품영양분야의 심화교육을 실시하기 위하여 부천 및 인천지역의 식품관련 업체에 근무하는 사람을 대상으로 교육수요에 대한 설문 조사를 실시하였다. 설문조사에 성실하게 응답한 126명중에서 전공심화교육을 긍정적으로 평가하고 기회가 되면 교육을 받겠다고 응답한 사람이 101명(80.2%)이었고, 부정적으로 평가하거나 심화교육을 받을 의사가 없다고 응답한 사람이 25명(19.8%)이었다 심화교육을 희망하는 주된 이유는 전문분야의 부족한 실력을 향상시키고 학점은행제에 의하여 학사학위도 받을 수 있기 때문이었다. 전공심화과정에 개설되었으면 좋겠다고 생각하는 전공과목은 영양상담, HACCP실무론, 식생활과건강, 외식산업창업및경영, 식당경영론, 급식전산실무, 식품및조리원리, 식품재료학, 식품관능검사, 식품품질관리 등이었다. 학정은행제에 교양관련과목으로 개설되면 좋겠다고 생각하는 과목은 PC활용, 재태크론, 전자상거래론, 소자본창업경영, 대인관계심리학, 상담심리학, 운동과 건강 등이었다. The aim of research was to investigate the demand for deepened education of the subjects who work in food related jobs in Bucheon and Incheon area, and to establish the deepened education in field of Food and Nutrition. Subjects were 126 persons, and the results were as follows: 101 persons(80.2%) evaluated positively the deepened education, and answered to be willing to take the course if they have an opportunity for study. 25 persons (19.8%) responsed negatively, or answered not to take the course. The main reasons to select the deepened education are not only to be able to improve the knowledge in major but also to obtain the degree of Bachelor in food and nutrition. The courses they wanted to be opened were as follows: nutrition education, practice in HACCP, food and health, restaurant management, practice in computer related to food service, food science, principles of cookery, food materials, sensory evaluation of food, quality control, etc. The general courses they wanted to be opened were as follows: PC practice, theory of property management, electronic commercial transaction, establishment and management of the small sized capital enterprises, psychology in human relation, psychology in counseling, physical activity and health, etc.

ASYMUNT: 21개 Noncentric 점군이 갖는 X선 데이터의 asymmetric Units

서일환,박정란,박영수,이진호,이창희,김문집 순천향대학교 기초과학연구소 1999 순천향자연과학연구 논문집 Vol.5 No.2

결정학적 가설 ??은 anomalous dispersion을 나타내는 원자를 갖고있는 비대칭 결정에 대해서는 성립하지 않는다. 만약 이들의 결정구조가 Lane group 보다는 오히려 noncentric point group의 X선 강도 데이터의 asymmetric unit로부터 정해질 수 있다면, 그 구조는 강도 데이터가 2배로 증가하기 때문에 보다 신뢰성이 증가한다. 본 논문에서는, 21개 noncentric point group 각각에 들어가는 강도 데이터의 asymmetric unit 의 정확한 범위를 계산하는 프로그램을 제안하였다.

Four-circle Diffractometer를 이용한 결정방위행렬과 단위포상수 결정

서일환,이진호,심해섭,이정수,성백석,이창희,김문집 순천향대학교 기초과학연구소 1999 순천향자연과학연구 논문집 Vol.5 No.2

A theoretical process to determine the unit cell parameters a, b, c, , β, γ of single crystals and then to collect intensities of ?? using four-circle diffractometer has been shown.

사북-고한지역이 탄광폐석에 대한 암석학적 특성 연구

백환조,임길재,서백수,민경원,정연태 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

사북 및 고한 지역에 분포하는 동원탄좌와 삼척탄좌에 적치되어 있는 석탄폐석은 대부분 사암과 흑색 셰일로서, 사북광업소의 경우 약 730만 m³, 정암광업소에는 약 830만 m³의 폐석이 적치되어 있다. 동원탄좌 사북광업소의 석탄폐석중 사암은 대부분 평균 입자의 크기가 0.15∼0.9㎜에 해당하는 등립질 조직을 보이는 이질석영사암으로서, 입자의 모양과 원마도에 따른 분류로는 low sphericity의 subrounded grain에 해당된다. 또한 흑색 셰일은 평균 광물 입자의 크기가 0.05㎜ 이하이고 비교적 물결 모양의 충리를 나타내고 있다. 삼척탄좌 정암광업소의 사암은 대부분 평균 입자의 크기가 0.15∼0.3mm의 범위에 해당하는 등립질의 이질석영사암으로서 대체로 low sphericity의 subrounded grain에 해당되며, 흑색 셰일은 평균 장경이 약 0.03∼0.06㎜에 달하고, 충리가 비교적 잘 발달되어 있다. 주성분 원소들의 화학분석 결과에 따르면 동원탄좌 사북광업소의 사암은 삼척탄좌 정암광업소의 사암에 비해 상대적으로 SiO₂의 평균함량이 약간 더 높은 값을 보이고 있는데, 특히 동원탄좌 사북광업소의 일부 사암(D-4 및 D-5)은 치밀한 조직의 석영으로 구성되어 있고, 소량의 점토광물만이 기질을 이루고 있어 건설재료로서 그 활용가치가 높다고 판단된다. 또한 삼척탄좌의 사암(S-3 및 S-4)은 동원탄좌의 사암보다 상대적으로 낮은 SiO₂ 함량과 높은 Al₂O₃, Fe₂O₃*, K₂O 및 L.O.I. 함량을 보이는데, 이는 기질을 이루는 점토광물의 양이 상대적으로 많음을 반영한다. 삼척탄전의 석탄폐석에 대한 암석학적 및 지구화학적인 특징에 의하면 사암의 경우는 대체로 건설재료로서 활용이 가능하나, 흑색 셰일의 경우는 비교적 탄질물이 많이 함유되어 있어 직접적인 건설재료로의 이용은 비효율적일 것으로 생각된다. The coal mine waste rocks piled in he Sabuk and Gohan district consist mainly of sandstones and black shales, and the estimated volumes of the waste rocks are about 7,300,000m³ and about 8,300,000m³ at the Sabuk mine, Dongwon Coal Co. and the Jeongam mine, Samchok Coal Co., respectively. Sandstones in the waste pile yard of the Sabuk mine are mainly equigranular argillaceous arenites composed of low spherical and subrounded grains of 0.15∼0.9㎜ in size. Black shales show generally wavy lamination and their average grain sizes are less than 0.05㎜. Sandstones in the waste pile yard of the Jeongam mine are also mainly equigranular argillaceous arenite of low spherical, subrounded and 0.15∼0.3㎜ sized grains, and black shales exhibit well developed laminar structure with grains of 0.03∼0.06㎜ in size. Sandstones at the Sabuk mine have higher SiO₂ contents than those at the Jeongam mine, and especially some sandstones (D-4 and D-5) have extremely high SiO₂ contents, reflecting their compact textured quartz grains with small amounts of argillaceous matrix. Compared with those at the Sabuk mine, Sandstones at the Jeongam mine display lower SiO₂ contents but higher abundances of Al₂O₃, Fe₂O₃, K₂O, and L.O.I., reflecting relatively lower amounts of clay minerals. According to their petrological and geochemical properties, sandstones rather than black shales in the Sabuk and Gohan district could be potentially utilized as raw materials for construction and especially for polymer-concrete, which is now under design for mass production in this area.

두개강내 출혈을 동반한 불응성 특발성 혈소판감소성 자반증의 CYCLOPHOSPHAMIDE 치험 1예

서정철,양태영,최연수,박유환,김완중,허경,정원영,정춘해 朝鮮大學校 附設 醫學硏究所 1993 The Medical Journal of Chosun University Vol.18 No.1

Idiopathic thrombocytopenic purpura(ITP) is an autoimmune bleeding disorder characterized by the development of antibodies to one's own platelets, which are then destroyed by phagocytosis in the spleen and liver. Its clinical manifestations are characterized by bleeding and the most serious complication is hemorrhage into the central nervous system, but which is rarely seen below 1%. In treating IPT, the therapy of first chice is administration of adrenocorticosteroid and r-globuline. If satisfactory results are not obtained, then splenectomy is recommended. If this also proves inadequate, then administration of immunosuppressants is carried out. 16-year-old male was admitted with complaints of left hemiplegia and nasal bleeding. This case may be developed spontaneous intracerebral hemorrhage causing thrombocytopenia and was treated by steroid, r-globuline and splenectomy, but satisfactory results are not obtained. After all, the paient was successfully treated with cyclophosphamide.

하악 무치악 인공치아매식술시 하치조신경 전위술

최의환,하정완,김수관,정태영,김수흥 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.3

Modified surgical technique for transposition of the inferior alveolar nerve followed by immediate placement of endosseous implants in mandibles with moderate to severe atrophy are presented. Five transpositions of the inferior alveolar nerve together with the installation of 10 implants were performed in four patients. The mean postoperative follow-up time was 17 months, with a range of 8 to 20 months. All implants with functioning pontics remained stable, with no mobility or symptoms of pain and infection during the follow-up period. Neurosensory evaluation was performed using the two-point discrimination test. Two patients had objective neurosensory dysfunction at postoperative, but all the nerve function were reported as normal by the patients 4 months postoperatively.

3-Chloromethyl-3-Methyl Oxetane의 합성

박정환,한도수,허선아,조성동 조선대학교 기초과학연구소 1993 自然科學硏究 Vol.16 No.1

3-chloromethyl-3-methyl oxetane(CMMO) was synthesized with 3-methy-3-methoxytosyl oxetane(MMTO) and LiCI in 68% yield.

회전변위와 천공을 포함한 측두하악관절 내장증 상태와 임상적 특징간의 상호관계

유동수,정환석 大韓口腔顎顔面 放射線學會 1998 Imaging Science in Dentistry Vol.28 No.1

This study was designed to reveal the correlationship between the internal derangement state of TMJ and clinical characteristics including pain and mandibular dysfunction. One hundred and twenty five subjects with TMJ signs and symptoms were chosen for two years. The level of pain and madibular dysfunction were evaluated by Visual Analog Scale(VAS) and Craniomandibular Index(CMI). The diagnostic categories of TMJ internal derangement were determined by arthrography and they included normal disc position, anterior disc displacement with reduction(ADDR), rotational disc displacement with reduction(RDDR), anterior disc displacement without reduction(ADDNR), and rotational disc displacement without reduction (RDDNR). Also disc perforation was used as a criteria to divide the diagnostic subgroups. The obtained results were as follows; 1. The patient distribution of each group was 5 in normal disc position(4%), 40 in ADDR(32%), 30 in RDDR(24%), 34 in ADDNR (27%), and 16 in RDDNR(13%). 2. Perforation was observed in 8% of ADDR, 10% of RDDR, 32% of ADDNR, and 19% of RDDNR. 3. CMI of non-reduction group was higher than that of reduction or normal group(p<0.05), but VAS showed no significant difference. 4. CMI of perforation group was higher than that of non-perforation group in reduction group (p<0.05). 5. There were no significant differences of CMI and VAS between anterior disc displacement group and rotational disc displacement group in both reduction and non-reduction group. 6. CMI of RDDNR group was higher than that of RDDR group (p<0.05). 7. There were no significant difference of CMI and VAS between bilateral involvement group and unilateral involvement group(p>0.05).