• 제목/요약/키워드: OT-IT

검색결과 271건 처리시간 0.025초

Thiocyanato ammine계 chromium complex salts에 있어 thiocyanato기의 수가 Rf치에 미치는 영향 (The effect on the Rf value by the number of thiocyanate radical in various thiocyanate ammine chromium complex salts)

  • 최종인
    • 약학회지
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    • 제10권4호
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    • pp.1-6
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    • 1966
  • Various thiocyanatoammine chromium complex salts are prepared by the known methods and the Rf. value of these complex salts are determined by four developers. These four developers were used in the paper chromatographical work of cobalt complex salts by Yamamoto in 1954. It was also found that the developer A (Ch$_{3}$OH, acetone, NH$_{4}$OH) gave best results of these four developers and the decending development gave better results than ascending development in this experiment. In the case of decending development using developer A, it is found that the Rf. value is increased with the number of thiocyanate radical. The reason of this curious results can be explained that the thiocyanate radical in the complex ion is more active for the organic solvent than ammine radical. Shifting of electrons to the central metal and the charge of the complex ion can also effect ot the Rf. value but much questions are remained for the explanation of the above curious phenomenon. Separation of mixed sample is also studied for various mixture of the above complex salts. In the case of the mixture of hexammine and diammine complex salt, the clear separation is possible but in almost all other mixed sample, the results are not clear. Therefore it can be said that the results of this work can be used in the qualitative analysis of the individual complex salts, except the mixed sample of hexammine and diammine complex salts.

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착유 자동화를 위한 로봇 착탈 시스템 (Development of a Robotic Milking Cluster System)

  • 이대원;최동윤;김현태;이원희;권두중;이승기;한정대
    • 한국축산시설환경학회지
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    • 제6권2호
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    • pp.113-119
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    • 2000
  • A Robotic milking cluster system with the manipulator for an automatic milking system was designed and built for farmer to work easily and comfortably during milking processing. The cluster system was composed of screws, cams and links for power transmission, DC motors, the Quick Basic one-chip microprocessor, the vision system for image processing, and tea-cups. Software, written in Visual C+ and Quick Basic, combined the function of image capture, image processing, milking cluster control, and control into one control. The unit was made to transfer from four fixed points to four teats with four teat-cups. Performance tests of the cluster unit, the fully integrated system, were conducted to attach and detach the teat-cup on the teat of a artificial cow. The transfer programming provided for a teat-cup milking loop during the system starts and comes back the original fixed point at the manipulator of it for milking. It transferred the teat-cup with a success rate of more than 70%. The average time it took ot perform the milking loop was about 20 seconds.

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중년 여성용 니트 재킷의 생산실태 및 만족도에 관한 연구 (A Study on the Production Condition and Satisfaction with Knitted Jacket for the Middle-aged Women)

  • 최진희;한진이
    • 한국의류학회지
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    • 제29권8호
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    • pp.1068-1078
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    • 2005
  • The purpose of this study was to analyze the production process of 12 domestic companies that manufacture women's knitwear and the degree of satisfaction of the middle-anged women who purchase knitted Jacket. Three hundred questionnaires were distributed and a total of 276 usable data were coded for further statistical analysis including descriptive statistics (frequency and one way- ANOVA test) by using SPSSWIN 10.1. It was found that the price satisfaction of knitted jacket was low because of imported yarn and production methods(i .e., 1inking, sewing, etc.). Therefore, it is necessary to develop that domestic yam and improve production methods. Another finding ot the study demonstrated that the size of knitted jacket was a little tight for the middle-aged women on the circumstance size(i.e., bust, waist, etc.) while majority of the respondents felt that the areas such as sleeve and shoulder seemed a little bit longer than their size. It should be designed in such that the physical characteristics of knitted materials are considered when pattern is made. Clothing companies should make an effort to effort more information about the knitted jacket and develop pattern suitable for the body shape of the middle-aged women.

내측 측두엽 간질에서 심부전극 삽입을 위한 컴퓨터 프로그램 개발 (The Development of Software Program for Depth Electrode though Occipito-temporal Route in Temporal Lobe Epilepsy)

  • 이도희;이종주;이정교
    • 한국의학물리학회지:의학물리
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    • 제13권4호
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    • pp.234-241
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    • 2002
  • 내측 측두엽 간질(mesial temporal lobe epilepsy)의 침습적 검사는 심부전극(depth electrode)을 이용한 진단이 정확하여 임상에서 이용되고 있다. 심부전극 삽입은 occipito-temporal route를 이용하는 방법이 많이 이용되고 있다. 본원에서는 occipito-temporal 경로를 심부전극의 삽입부위를 수 작업으로 계산하여 MRI에서 확인하고, 시행하였다. 그러나 MR 영상에서 frame과 cutting line 사이에 정확하게 수평ㆍ수직이 일치하지 않음으로 오차가 발생하고, 수 작업으로 계산하면 많은 시간이 소요되는 문제가 있었다. 본 연구에서는 MRI 촬영 후 기하학적 오차의 보정으로 정확한 계산을 즉시 시행하여, 바로 시술을 시행할 수 있도록 프로그램을 개발하였고, 17명의 환자에 적용하여 이 프로그램의 임상유용성을 확인하였다.

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Equo-Tip 경도값에 미치는 실험변수의 영향 (The Effect of Test Variables on the Accuracy of Equo-Tip Hardness)

  • 남승훈;전승범;김종집
    • 열처리공학회지
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    • 제3권2호
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    • pp.32-36
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    • 1990
  • For the accurate measurements of hardness in a material, it is necessary to have a thorough understanding of the effects of test variables on the accuracy of hardness value. For the rebound hardness test, major test variables are the radius of hammer ball tip, type of backing materials, size and roughness of the specimen. In this study, effects of these variables on Equo-Tip hardness value were investigated. Hardness measurements were carried out using WC balls with various sizes of worn-ot zone. The sample materials chosen for the experiments were commercial standard hardness blocks and SM45C steel bars subjected to either normalization or quench and temper treatments. As backing materials, aluminum, steel and rubber plates were used in all the experiments. Experimental results show that for the accurate measurements of Equo-tip hardness, it is necessary to use the hammer ball with a worn-out zone parameter of less than 0.23, and the recommended minimum thickness and width of the specimen are 25mm and 70mm, respectively. Further for the surface preparation, the specimens need to be polished with an emery paper of No. 400 or finer, and for the backing matrials, it is recommended to use steels or rubbers.

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Crystal Structure and Thermal Stability Study on Tetrabutylammonium Hexamolybdate [n-Bu4N]2[Mo6O19](TBAM)

  • Zhao, Pu Su;Zhao, Zhan Ru;Jian, Fang Fang;Lu, Lu De
    • 대한화학회지
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    • 제47권6호
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    • pp.553-558
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    • 2003
  • $[n-Bu_4N]_2[Mo_6O_{19}]$(TBAM)의 결정구조는 X-ray 분석기로 결정되었다. 그 결정은 monoclinic 계이며 ${\alpha}$=16.314(5), b=17.288(5), c=17.776(4) ${\AA}$, ${\beta}$=101.47(3) 그리고 z=4의 결정파라미터를 갖는 sapce group 이 C2/c인 결정이다 $[Mo_6O{19}]^{2-}$ 음이온에서, Mo 원자는 팔면체의 여섯 개 모서리를 차지하며 각 Mo 원자는 여석개의 산소원자에 배위되어 찌그러진 팔면체 배위 기하학을 지닌다. Mo-Ot(말단기), Mo-Ob(연결된), 그리고Mo-Oc(중앙)의 평균거리는 각각 1.680 ${\AA}$, 1.931 ${\AA}$ 및 2.325 ${\AA}$ 이다. $[n-Bu_4N]^+$ 양이온에서 N원자는 약간 찌그러진 사면체 모형을 갖는다. 격자안에서 폭 넓은 C-H ${\cdots}$ O 수소결합이 있으며, 그것에 의하여 분자들을 연결하고 결정구조를 안정화 한다. 열분석에 의하여 제목의 열적분핸ㄴ 두개의 전이가 일어나며 356.0와 803.5 $^{\circ}$에서 각각 무게를 잃는다. 그리고 분해된 생성물은 $Mo_2O_2$로 추정된다. 따라서, 제목의 화합물은 높은 열적 안정성을 갖는다.

인쇄회로기판 검사용 프로브시스템의 광학센서 (An optical sensor of a probing system for inspection of PCBs)

  • 심재홍;조형석;김성권
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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    • pp.1742-1745
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    • 1997
  • We have developed a highly responsible probing system for inspection of electrical properties of assemble PCB$_{s}$ (printed circuit boards). However, as the duration of the impact occurring between a probe and a solder joint on PCB is very short, it is very difficult to control the harmful peak impact force and the slip motion of the probe to sufficient level only by its vorce feedback control with high gains. To overcome these disadvantages of the prototype, it needs ot obtain some information of the solder joint in advance before the contact. In addition, to guarantee the reliability of the probing task, the probing system is required to measure several points around the probale target point at high speed. There fore, to meet such requirements, we propose a new noncontaet sensor capable of detecting simultaneously position and normal vectors of the multiple points around the probable target point in real time. By using this information, we can prepare a control strategy for stable contact motion on impact. In this paper, we described measuring priniciple, design, and development of the sensor. The effectiveness of the proposed sensor is verified through a series of experiments.s.

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한글-어울림-멋짓 (Hangul-Oullim-Meotjit)

  • 안상수
    • 디자인학연구
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    • 제20권3호
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    • pp.335-344
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    • 2007
  • <훈민정음>이야말로.세계적인.멋지음(디자인)이다.. 한글은.큰.멋짓이다.. 한글.디자인의.의도,.철학적.배경,.운용.원리.및. 사용.방법을.간명하게.적어놓은. <훈민정음>.역시.세계적인.디자인.이론서이다.. 디자인의.우리말은.'멋지음',.'멋짓'이다.. 디자인은.그.무엇의.멋지음이다.. 멋지음은.때로.꼴을.가지지.않은.것,. 얼을.짓는.것(디자인하기)이며,. 생각을.어떤.꼴로.만들어내는.'지음'이기도.하다.. 멋짓은.디자이닝의.행위를.포괄한다.. 그.중.시각디자인은.'봄멋짓',. 패션디자인.은.'옷멋짓'.등이라.할.수.있다.. 글꼴멋짓(타이포그라피)은.봄멋짓의.등뼈.. 한글.멋짓은.우리.멋짓의.기둥. 멋의.바탕은.어울림이다.. 다름이.살아있는.멋.. 그것은.우리.디자인의.제다움(정체성)과도. 통하는.것이다.. 이렇듯.'멋지음,.멋짓'이라는.우리말로.보면. 다른.나라.말에서.오는.'디자인'이라는.말에서.느끼던.것과.다르게.새로운.면이.느끼게.되며.보이게.된다..

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'장애인 등에 대한 특수교육법' 시행에 따른 치료지원서비스 활성화 방안 : 물리.작업치료를 중심으로 (The Research for the Activation of Treatment Related Service According to the 'Special Education Law': Focusing on Physical.Occupational Therapy)

  • 이병희;정진화
    • 대한물리치료과학회지
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    • 제16권2호
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    • pp.45-55
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    • 2009
  • Background: This thesis aims at suggesting the direction for the introduction of public free treatment support system according to the establishment of [Special Education Law] and the right settlement of therapeutic support service. Method: It introduced the characteristics and the contents of school based PT & OT, diagnosis and evaluation, and operation method. It set up question items and presented intervention plan, and substantial intervention, beginning from the request of whole process. The diagnostic evaluation was described from 4 aspects, which are consideration matters in the time of document drawing and diagnostic evaluation, chiefly centering around SOAP. The flow of overall treatment support service, the allocation of 16 handicapped children for 1 therapist, and the weekly treatment frequency according to the treatment support location and environment were suggested in the concrete operation method. Result: The concrete method should be explored in order to provide handicapped students with requisite services, which are offered by various experts in the amended 'Special Education Law'. In addition, work condition and social welfare, which are equal to school teachers, should be provided for all experts. Conclusion: Along with these things, special education support center should establish the road-map for the education rehabilitation of the handicapped children from the evaluation of early diagnosis of the handicapped children to treatment support and lifelong education.

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건설분야에서의 RFID 시스템 활용사례 및 발전방향 (A case study and future directions of Radio Frequence Identification system in A/E/C industry)

  • 최철호
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
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    • pp.140-144
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    • 2004
  • 최근 물류 및 유통분야에서 혁명을 불러일으킬 것으로 예견되고 있는 RFID시스템이 국내의 건설산업 환경에도 큰 영향을 끼칠 것으로 예상되고 있다. 이미 $4\~5$년 전부터 국내 대형프로젝트에 바코드시스템을 활용한 노무인력관리 및 주요자재의 물류관리에 활용된바 있으나 바코드시스템이 갖고 있는 한계성으로 인해 건설현장에 그다지 성공적으로 정착하지 못하였다. 이를 극복하기 위한 한 방법으로 RFID시스템을 건설현장에 적합하게 개발 및 시범적용 해보았으며 본 연구를 통해 건설현장에 RFID시스템을 어떻게 적용을 하였고 어떠한 성과를 거두었는지에 대해 조사해 보았고, 향후 이러한 RFID시스템을 통해 적용 및 발전 가능한 방향에 대해 제시해 보았다.

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