• Title/Summary/Keyword: research instruments

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A Study on the Modular Coordination for the Smart Home (스마트 홈의 공간모듈시스템 구축에 관한 연구)

  • Kim, Nam-Suk;Park, Hee-Ryoung;Kim, Yong-Seong
    • Korean Institute of Interior Design Journal
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    • v.15 no.5 s.58
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    • pp.149-156
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    • 2006
  • The Smart Home and the Home Networking industry have growth rate in 53.9% per year, and many nations appoint it as a nation's developing industry to research and invest. As KS, a standard composing smart instruments for smart home, maintain systematically in every year, and in other side construction standardization only in way to indicate, but never has national standard. Based on the Modular Coordination(MC) the framing standard of design drawing was examined in every year, and in same way for making the framing standard about Smart Home there need making a Modular Coordination(MC) at first. This investigation recognize the necessity about the modular that will be the base of architectural space which control the smart instruments. And aimed at indicating smart modular through the research about modular of the existing residence space and survey about the applicable smart technology.

Microwave Radiometer for Space Science and DREAM Mission of STSAT-2

  • Kim, Y.H.
    • Bulletin of the Korean Space Science Society
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    • 2008.10a
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    • pp.31.4-32
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    • 2008
  • The microwave instruments are used many areas of the space remote sensing and space science applications. The imaging radar of synthetic aperture radar (SAR) is well known microwave radar sensor for earth surface and ocean research. Unlike radar, microwave radiometer is passive instrument and it measures the emission energy of target, i.e. brightness temperature BT, from earth surface and atmosphere. From measured BT, the geophysical data like cloud liquid water, water vapor, sea surface temperature, surface permittivity can be retrieved. In this paper, the radiometer characteristics, system configuration and principle of BT measurement are described. Also the radiometer instruments TRMM, GPM, SMOS for earth climate, and ocean salinity research are introduce. As first korean microwave payload on STSAT-2, the DREAM (Dual-channels Radiometer for Earth and Atmosphere Monitoring) is described the mission, system configuration and operation plan for life time of two years. The main issues of DREAM unlike other spaceborne radiometers, will be addressed. The calibration is the one of main issues of DREAM mission and how it contribute on the space borne radiometer. In conclusion, the radiometer instrument to space science application will be considered.

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A study on the development of DC-DC converter for low-power DSC

  • Park, Sung-Joon;Kim, Whi-Young
    • Journal of information and communication convergence engineering
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    • v.7 no.1
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    • pp.52-56
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    • 2009
  • In this research, we have studied the development of dc-dc converter suitable for the driving of mobile instruments by using a dye-sensitized solar cell(DSC). We also have designed a interlocking circuit. The circuit makes power generation be saved in one battery and concurrently be discharged in the other battery. As this application, mobile devices such as MP3, cellular phone are operated by using power generator from DSC during the daytime and they can be operated by using the saving energy of the daytime during the night. Consequently, it has a simple and robust circuit configuration. Besides, we designed dc-dc converter circuit to drive low power instruments by using NMOS switch and PMOS rectifier. Operational modes are analysed, and then validity of the proposed interface circuit is verified through DCS.

Robot-Assisted Pulmonary Resection For Lung Cancer (폐암에서 로봇을 이용한 폐절제술)

  • Lee, Hyun-Sung;Jang, Hee-Jin
    • Korean Journal of Bronchoesophagology
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    • v.17 no.2
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    • pp.92-97
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    • 2011
  • MMinimally invasive surgery (MIS) for early stage lung cancer has been an important treatment modality. However, the ergonomic discomfort and counterintuitive instruments hindered the application of video-assisted thoracic surgery (VATS) to more advanced procedures. To improve the compliance with MIS, robotic surgery was adopted. This advance aimed to alleviate the shortcomings of VATS by maximizing the comfort of the surgeon while providing instruments that enabled technically demanding operations and three-dimensional views with increased freedom for intrathoracic movement owing to EndoWrist$^{(R)}$. In this session, we introduced the clinical applications and its results of robot-assisted thoracic surgery in the field of lung cancer surgery. In conclusion, robot-assisted pulmonary resection with lymph node dissection for lung cancer is safe as well as feasible, and it results in a satisfying postoperative outcome. Robot-assisted surgery may provide a good alternative to conventional open or thoracoscopic surgery for lung cancer, provided that the cost effectiveness and long-term prognosis are confirmed.

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Intra-luminal Thrombus Reduces Stress in the Aneurysm Wall: Fluid-Structure Interaction in Pulsatile Flow

  • Kim S. Y.;Kim Y. H.
    • 한국전산유체공학회:학술대회논문집
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    • 2003.10a
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    • pp.147-149
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    • 2003
  • Using computational fluid dynamics with the fluid-structure interaction, structural effects of intra-luminal thrombus were determined in thrombosed axisymmetric abdominal aorta aneurysm (AAA) models under pulsatile flow. Four different models, varying dilatations of the aneurysm and Young's moduli of intra-luminal thrombus, were defmed. Compared with unthrombosed AAA models, both von Mises stress and radial displacements in the aneurysm wall significantly decreased. Stiffer intra-luminal thrombus reduced von Mises stress in the aneUtysm wall. The present study supported that intra-luminal thrombus might reduce wall stress in the aneurysm.

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Theoretical Frameworks to Predict Factors Associated With the Marital Quality and Stability (결혼생활의 질과 안정성에 관련된 이론적 모형)

  • Kim, Yeong-Hee
    • Korean Journal of Human Ecology
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    • v.5 no.2
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    • pp.53-72
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    • 1996
  • This article reviewed the research on factors associated with marital quality and stability. Three major categories of factors were described, including background and context, individual traits and behaviors, and couple interactional processes. This review highlighted findings from cross-sectional and longitudinal studies of the prediction of marital quality and stability. Particular attention was given to marital instruments and procedures that had a solid empirical foundation for understanding the concepts related to measure of marital quality and stability. Also, empirically based intervention programs that had been designed to prevent marital distress and divorce were investigated to figure out the relationship between communication factors and conflict resolution styles. Finally, three theoretical frameworks were drawn from empirical literatures, marital measurment instruments, and programs for marital strength to predict factors associated with the marital quality and stability. Recommendations for future research and implications were described.

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Comparison of Nutrient Deficient Stress Diagnoses of Cucumber Plant Using Non-Destructive Physiological Instruments

  • Suh, Sang Ryong;Sung, Jae Hoon;Chung, Gap Chae
    • Agricultural and Biosystems Engineering
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    • v.2 no.1
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    • pp.1-6
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    • 2001
  • This paper represents methods to diagnose nutrient deficient stresses of cucumber plants using several physiological instruments. The stresses could be detected by measuring and analyzing the difference of chlorophyll content, photochemical efficiency (Fv/Fm), temperature difference (DT) and light absorbance at wavelengths of 480nm, 560nm and 710nm between deficient and control plants. From the all over experiments, the stresses could be first diagnosed in the 3rd to 5th day in general after treatment and the overall diagnosis rate was estimated at more than 50% up to 100%.

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Development and Application of the Imaginary Audience Reduction Program for Self-Esteem Improvement of Adolescent - Focusing on the middle school girls - (청소년의 자아존중감 향상을 위한 상상적 청중 감소 프로그램 개발과 적용 - 여자중학생을 중심으로)

  • 고경남;김춘경
    • Journal of Families and Better Life
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    • v.19 no.6
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    • pp.95-112
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    • 2001
  • The purpose of this study was to develop an Imaginary Audience Reduction Program and examine the effectiveness of using the program on improving female adolescents' self-esteem. Based on the results from the study, 10-session-Imaginary audience reduction program was developed. Then the researcher conducted the Imaginary Audience Reduction Program for 72 female adolescents from 4, May 2000 to 7, July 2000 at the girls'middle school in Daegu. For examining the effectiveness of using the program, the research instruments were Self-Esteem Inventory(SEI; Coopersmith, 1967) and New Imaginary Audience Scale(NIAS; Lapsley, FitzGerald, Rice & Jackson, 1989). The research instruments used for pre-post-follow up tests. The Data were analyzed by Repeated Measure ANOVA. There were statistically significant differences in self-esteem and Imaginary audience. Results revealed that adolescents who took the Imaginary Audience Reduction Program consistently reported the improvement of their self-esteem level and the reduction of their Imaginary audience level. The implication of study findings will be discussed.

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A Study on the Standardization In the Mandibular First Premolar of the Middle Aged Korean (하악 제1소구치의 표준화 연구)

  • Lee H.J.;Chun K.J.;Chung D.T.;Cho C.H.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.10a
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    • pp.252-255
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    • 2005
  • Mandibular first premolars obtained from the middle-aged men about the ages of 50 were scanned using a Micro-CT. A Jig was made for a Micro-CT measurement to get reliable data from irregular teeth shape. Data were measured from the scanned 2-D images by way of measurement software. the methodology fer measurement of the mandibular first premolar was presented and according to this, the standardized mandibular first premolars of middle aged Korean males and females were made by using a rapid prototyping system.

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