3차원 의료기기용 초음파진단기 프로브 개발

박종수,김성래,남윤수 江原大學校 産業技術硏究所 2005 産業技術硏究 Vol.25 No.A

Three-dimensional ultrasonic probes being applied to the medical imaging can be grouped into three depending on the scanning methods, which are a mechanical type system, a free-hand system, and 2D phased arrays system. A mechanical type scanner uses a mechanically driven transducer to acquire series of 2D plane images. By integrating these images, a 3-D medical image can be constructed. A motor driving mechanism is a conventional choice for mechanically driving a transducer assembly which picks the raw ultrasonic images up. In this paper we attempt to design a 3D ultrasonic probe which has a operating mechanism of s tilting 3-D scanning. The motion of a transducer assembly of the ultrasonic probe is analytically modelled. We propose a selection procedure for the diameter of a wire rope driving the transducer assembly and the size of torsional spring which gives an initial tension to wire ropes.

김의 殼胞子에 대한 γ-線 照射效果 : I. 殼胞子의 發芽生長에 미치는 γ-線의 照射效果

金重來,金鍾連 군산대학교 1983 群山水産專門大學 硏究報告 Vol.17 No.3

I. □胞子의 發芽生長에 미치는 γ -線의 照射效果 r - Irradiation effects from □Co at 250r - 3000r on conchospores of laver (P. tenera) were examined. The major investigation was to clarify the biological effects of gamma irradiation on the germination and growth of conchospores at 48hrs after liberation, which mostly were composed of one cell yet. The results obtained were summarized as follows. 1) All conchospores served as materials germinated and developed normally to young germs at any irradiations. 2) In general, the visible irradiation effects on growth were observed at every irradiation dosage, and thus the highest growth-rate was 365% in frond-area at 1.0 KR and 126% was recorded as minimum at 250 r. 3) There is a tendency for the growth-rate curve, whose peak was at 1.0KR, to reduce slowly with increasing irradiation dosage in the range of 3.0 KR. 4) Antheridums, carpogoniums and carpospores resulted from their fertilization were observed on the fronds exposed at 1.0-1.5 KR irradiation. 5) Some giant cells and callus-like tissues multiplied abnormally were found on a few fronds at 250 r and 1.0 KR.

「용부전」의 新考察

李來宗 翰林大學校 泰東古典硏究所 1990 泰東古典硏究 Vol.6 No.-

절삭조건과 AE 신호들과의 관계에 관한 실험적 연구

조종래,정윤교,원종식 창원대학교 공작기계기술연구센터 1999 연구업적집 Vol.1 No.1

This paper investigates the relationship between cutting conditions and Acoustic Emission(AE) signals; AEavg, AErms, AEmode, as the base working to monitor the tool wear with in-process. For this purpose. cutting tests were conducted on a CNC lathe with comprehensive cutting conditions. It is known that AEavg and AErms are increased as the increasing of cutting velocity and depth of cut respectively. The new parameters, derived from AEavg and AErms, which may be used for the in-process detection of tool wear is discussed. It is also known that AEmode may also be applied for in-process monitoring to make the self diagnosis system because of its stability to the variation of cutting conditions.

工業系 中等敎員들의 資格硏修 效果

金種石,李廷玟,李來然,羅聲雄 충남대학교 공업교육연구소 1987 論文集 Vol.10 No.1

The purpose of this study was to investigate the effectiveness of inservice training in order to evaluate the current training program sponsored by the Secondary School Teacher Inservice Training Center. The contents and time of this program was implemented during Summer, 1986. The program was for the teachers to obtain the advence qualification. A total of 405 teachers were registered to the program and the questionnaire developed by the investigators administered to the participants of the program. The content of the questionnaire composed of 1) Personal data, 2) General curriculum, 3) Pedagogical subjects, 4) Subject Specialty, 5) Evaluation method, 6) The conditions and facilities for learning. The findings of this study were as follows; (1) General curriculum facilitated and encouraged the participants to inhence the national morality, comittment to teaching profession and democratic citizenship. (2) Pedagogical subjects facilitated and encouraged the participants to improve teaching skills. (3) Subject specialty area facilitated the participants to improve the knowledge of teaching subject. (4) For the evaluation methods, most participants favored objective test more for the general curriculum and pedagogical subject than subject specialty area. (5) The conditions and facilities for learning were responded unfavorable to the participants especially in computer availability and teaching method of computer.

정신분열병 증상을 동반한 진행성 핵상 마비 1례

박종익,조영래,홍진표,이민규,한오수,이명종 대한신경정신의학회 2001 신경정신의학 Vol.40 No.1

저자들은 환청과 망상을 주소로 정신과를 방문한 진행성 핵상 마비 환자를 진단하고 치료하였다. 진행성 핵상 마비는 보행 장해, 치매, 수직성 안구 운동의 장해가 특징적인 증상이며, 아직까지 특별한 치료법은 알려져 있지 않다. 정신과적 증상으로는 인지기능의 장해, 정동 및 행동의 변화, 수면 장해, 정신병적 증상 등이 있으며 정신분열병과 비슷한 증상을 보이는 경우는 극히 드물다고 한다. 본 증례에서는 파킨슨 증상과 정신병적 증상이 비슷한 시기에 발현된 진행성 핵상 마비의 예를 보고하면서 진단적 중요성을 강조하고자 한다. We have experienced a rare case of progressive supranuclear palsy with hallucination and delusion. The common manifestations of progressive supranuclear palsy are gait disturbance, mental change and sign of vertical ophthamoplegia but no efficacious therapy has been known. Neuropsychiatric symptom clusters include cognitive impairment, affective and behavioral changes, sleep disturbance, and psychotic symptoms. Though schizophrenia-like psychosis has been reported but this is certainly rare. Addressing a case of progressive supranuclear palsy, in whom parkisonian symptoms appeared with concurrent psychotic symptoms, we emphasize accurate diagnosis.

재해사례분석을 통한 빌딩공사 재해 특성

이종빈,노민래,고성석 한국안전학회 2004 한국안전학회지 Vol.19 No.3

Recently, construction work's tendency has become a high-rise building, a complexity and a large size. According to the KOSHA data, construction work accidents have not been decreased. Looking at from the side of accident, accidents of construction industry are occupied over 1/3 among all industry accidents. Therefore, this study will analyze the accident of the building construction work from the data of KOSHA which were collected during 11 years(1992 -2002) data relating to serious accidents of the building construction work, suggest the counterplan according to the each work type in building construction work.

TMS320C80칩을 이용한 이중암 로봇의 실시간 퍼지제어

김홍래,김종수,한성현 한국공작기계학회 2003 한국공작기계학회 춘계학술대회논문집 Vol.2003 No.-

In this paper, a self-organizing fuzzy controller(SOFC) for the industrial robot manipulator with a actuator located at the base is studied. A fuzzy login composed of linguistic conditional statements is employed by defining the relations of input-output variable of the controller, In the synthesis of a FLC, one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult, SOFC is proposed for a hierarchical control structure consisting of basic level and high level that modify control rules. The proposed SOFC scheme is simple in structure, fast in computation, and suitable for implementation of real-time control. Performance of the SOFC is illustrated by simulation and experimental results for robot with four joints.

Weibull 分布下의 劣化損失費用을 考慮한 經濟的 生産모델에 關한 硏究

金鍾來 慶南大學校 附設 工業技術硏究所 1983 硏究論文集 Vol.1 No.-

在庫는 計劃期間동안 壽命을 갖는 在庫와 計劃期間內에서 劣化되는 在庫로 分類할 수 있는데, 本 硏究에서는 計劃期間內에서 時間의 흐름에 따라 劣化되는 경우를 다루었다. 그런데 지금까지의 在庫管理 方法에서는 在庫의 保管時 發生되는 品質劣化 損失費用을 保管費로 부터 分離시키지 않고 保管費의 一部로 포함시켜 取扱해왔다. 本 論文에서는 이와같은 不合理한 管理方法을 改善해 보기위하여 品質劣化損先費用을 獨立된 劣化損失費用으로 設定하여 生産準備費, 在庫保管費, 劣化損先費의 合을 最少化하는 經濟的 生産모델에 대하여 硏究하였다. We can classify such type of inventories into case, that is the one in which items becomes absolute at some fixed point in time, the other in which the product deteriorates throught the planning horizon. So, this paper is inventory model by the latter case, at presentation of optimal production period and economic lot size with degradation loss cost of independent. But, from what inventory control method until now, quality degradation loss cost have been handling part of storage cost that was not separated from storage cost to occurrencing during the storage of inventory. This paper separated quality degradation loss cost from the inventory storage cost and that research about the economic production quantity model which was able to minimized sum of production preparation cost, inventory storage cost, degradation loss cost.

異常環境下의 營養問題 硏究(第2報) : 振動이 Serum Cholesterol 量에 미치는 影響

劉貞烈,辛正來 德成女子大學校 1972 德成女大論文集 Vol.1 No.-

혈청 cholesterol량은 비단 식사의 성분에 의하여 영향 받을 뿐만이 아니라 개체의 주위환경조건에 따라서도 많은 영향을 받을 것으로 사려 되기 때문에 진동이 혈청 cholesterol량에 미치는 영향과 또한 제1보 때와 마찬가지로 Caesin, 비타민류, α-Tocopherol, 인삼분말 등의 방호효과도 아울러 검토하였기에 결과를 다음과 같이 결론한다. 1. Basal diet군(백미식군)은 각 첨가군에 비하여 Serum cholesterol량이 낮다. 그러나 인삼첨가군의 Serum cholesterol량이 타군에 비하여 가장 낮은 것은 흥미로운 점이다. 2. 단백질첨가군, 비타민류 첨가군 및 α-Tocopherol 첨가군의 Serum cholesterol량은 Basal diet군의 그것보다 현저히 높다. 3. α-Tocopherol 첨가군을 제외하고 다른 모든 군의 경우 진동군이 비진동군에 비해서 Serum cholesterol량이 현저히 높다. 4. α-Tocopherol 첨가군의 경우에는 진동군과 비진동군 간에 별 차이가 없는 것으로 보아 α-Tocopherol은 진동으로부터의 Serum cholesterol량 변화를 막아주는 것으로 사려 된다.