• 제목/요약/키워드: Remodeling Characteristics

검색결과 200건 처리시간 0.029초

SRM 고정자와 회전자 중첩에 따른 인덕턴스 계산 (Calculating Inductance of Switched Reluctance Motors with overlapping soles of rotor and stator)

  • 최경호;백원식;김동희;김민회
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2001년도 하계학술대회 논문집 B
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    • pp.933-935
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    • 2001
  • This paper presents a calculating method for inductance of the Switched Reluctance Motor(SRM) for torque characteristics and driving by analytical model. The approaches for calculating inductance have taken vary from detailed finite element analysis(FEA) and Fitting method in magnetization curves using complex nonlinear magnetic circuit models. But those methods have not satisfactory approach for machine performance calculations, because of having a long time and remodeling for analyses, therefore thus an alternative approach is required. So it is suggested simply calculating method of the inductance based on designed data of machinery by analytical model in unaligned and aligned rotor. In order to prove the calculating, there are compare with analytical FEM, direct measurement, this method, and simulation. The compared result is shown to obtain good accuracy.

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저강도 초음파의 관절염 치료 적용성 평가 (An Evaluation of Low Intensity Ultrasonic Characteristics for Arthritis Healing)

  • 홍성민;한승무
    • 대한기계학회논문집A
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    • 제29권6호
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    • pp.787-794
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    • 2005
  • Nowadays chronic degenerative diseases such as arthritis are increasing rapidly, even though acute infectious diseases are decreasing due to the advance of modern medicine. Although many of remedies are developed for arthritis healing, there is no precise medical prescription, and pathogenesis is not examined exactly. In this study, we confirmed gene expression of BMP 1A, BMP 2B, osteonectin and MGP which are genes related with bone formation in osteoblast by using ultrasonic stimulation. Through this study, we also evaluated the fact that ultrasound could be applied to arthritis healing by making activated osteoblast induce remodeling of cartilage. As a result of this research, BMP 2B and MGP have higher rates of expression in specific ultrasound mode. In conclusion, it is expected that ultrasound could be used efficiently for healing arthritis if we use ultrasounds according to symptoms of arthritis on reasonable terms.

군용 비행장 내 실내소음 기준 설정에 관한 연구 (Study on Establishing the Indoor Noise Standard in Military Airport)

  • 고준희;최남수;백철;조만희
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2014년도 추계학술대회 논문집
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    • pp.701-703
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    • 2014
  • The intense noise generated by military aircraft hans a significant impact on ground crews and their families on airbase. For minimizing the impact of the aircraft noise on the airport, appropriate indoor noise standard is required. This paper studied to establish the indoor noise standard on the military airport. The aircraft noise was measured and analyzed the frequence characteristics. the remodeling of office for the noise mitigation was enforced to verify the appropriate internal noise standard and to select the method of reinforcement. The noise standard was classified three categories according to the dwelling, office and usage of building with flight train facilities and banishment in military airfield.

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Stability Determination of the Various Cosmetic Formulations containing Glycolic Acid

  • Yeo, Hye-yeon;Kim, Jeong-hee
    • 패션비즈니스
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    • 제22권3호
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    • pp.30-38
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    • 2018
  • Glycolic acid(GA) is well known the most effective cosmetic ingredient on the epidermal remodeling, accelerated desquamation and inhibitory effect on melanin synthesis. The various cosmetic formulations containing GA have not been reported in terms of stability. This study was to investigate the stability of three formulations(gel, cream, and ointment). The stability of obtained formulations was tested chemical and physical characteristics including the composition stability, hot-cool cycling, the variation of pH and viscosity, and the observation of color and odor. The experimental results showed that the gel and cream containing 5% GA, both formulations have proper stability in the centrifugal test, hot-cool cycling test, viscosity, pH stability and the observation of color and odor. On the other hand, the 5% GA ointment did not have stability. We concluded that the formulations of gel and cream are more suitable than ointment to use GA ingredient for developing cosmetic in terms of stability.

Activated Rap1A Induces Osteoblastic Differentiation and Cell Adhesion

  • Kim, Hyeseon;Jeon, Taeck J.
    • 통합자연과학논문집
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    • 제9권3호
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    • pp.171-176
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    • 2016
  • Rap1 is a key regulator of cell adhesion and migration. Although increasing evidence indicates that the Rap1 signaling pathway is involved in the process of bone remodeling, the mechanism by which Rap1 regulates osteoblastic differentiation and cell adhesion remains unknown. Here, we investigated the morphological characteristics and osteoblastic differentiation of cells expressing constitutively activated form of Rap1A (Rap1ACA) or Rap1 GTPase activating protein Rap1GAP and found that activated Rap1 induces osteoblastic differentiation and cell adhesion as well as cell spreading. When osteoblastic differentiation was induced, Rap1ACA cells showed considerably higher levels of calcium deposits than the wild-type and Rap1GAP-overexpressing cells did. Rap1ACA cells showed increased spreading and size, as well as strong cell adhesion and significantly decreased growth rates. F-actin staining using phalloidin revealed several thin thread-like filopodia around the protrusions in Rap1ACA cells, which possibly contribute to the increased cell adhesion.

예비 여성 노인의 노후 생활계획에 관한 연구 - 노후 동거계획, 주거계획 및 경제계획을 중심으로 - (A Study on the Planning for Future Elderly Living of Middle Aged Women)

  • 신화경
    • 한국주거학회논문집
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    • 제14권4호
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    • pp.31-38
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    • 2003
  • This study was designed to know the planning for future elderly living of middle aged women. The specific objects were to grasp preferred characteristics of their living together and housing in the elderly stage, economic preparation for the elderly. Data were collected through a questionnaire survey. The subject were 342 middle aged women living in the capital area. Frequency, percentage, and f2_test were used. The results showed that they wanted more emotional support than physical support from adult children, and wanted to make career for themselves in economic aspect. The most preferred housing for the their elderly stage was not only silver town. but also general housing type, for example, apartment and detached house. Therefore, it will be necessary to develop new housing and remodeling system of existing house for more independently elderly living.

가동 영구자석형 PMLSM 추력리플 최소화를 위한 영구자석 형상 최적화 (Permanent Magnet Shape Optimization of Moving Magnet type PMLSM for Thrust Ripple Minimization)

  • 윤강준;이동엽;김규탁
    • 대한전기학회논문지:전기기기및에너지변환시스템부문B
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    • 제54권2호
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    • pp.53-59
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    • 2005
  • In this paper, optimum shape design of permanent magnet in slotted type Permanent Magnet Linear Synchronous Motor(PMLSM) is progressed for minimization of detent force owing to structure of slot-teeth and thrust ripple by harmonic magnetic flux of permanent magnet. In order to reduce remodeling time as changing design parameter for Permanent Magnet shape optimization, the moving model node technique was applied. The characteristics of thrust and detent force computed by finite element analysis are acquired equal effect both skewed basic model and optimum model which is optimization of permanent magnet shape. In addition to, thrust per unit volume is improved 4.l2[%] in optimum model.

노인전문요양시설의 거주단위 모형개발에 관한 연구 (A Study on the Development of Prototype for Residential Units in Nursing Homes for the Severe Illness)

  • 권순정;오종희
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제10권2호
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    • pp.39-49
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    • 2004
  • With its rapid modernization and unparalleled speed of aging, South Korea faces the need for dramatic increase in its supply of nursing homes. Among the spacial components of nursing homes, residential units are considered as an essential part because the older person in nursing homes usually spend most of their time in residential units and the nursing homes are mainly composed of various residential units. It is necessary, therefore, to prepare a guideline for the plan of residential units in order to design the healthy and efficient nursing homes. This paper has first identified the concept of residential unit and analyzed 66 cases in the 62 nursing homes from 4 countries. And 4 nursing homes in Korea have been surveyed for the in-depth study. On the basis of this analysis, architectural prototypes of residential units have been proposed and the architectural characteristics of them have been compared analytically.

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병원건축의 변화과정에 관한 연구 - J대학부속병원을 대상으로 - (A Study on the Changing Process in Hospital Architecture - A Case Study on the J University Hospital -)

  • 최광석
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제14권4호
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    • pp.21-30
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    • 2008
  • Domestic hospital architectures were developed with the nation's industrialization after 1960s. Particularly, with the rapidly growing healthcare demands according to The National Health Insurance Plan which was introduced in 1977 and expanded to entire nation in 1989, the number of healthcare facility is also increasing according to the expansion of the existing facilities and construction of new buildings. Now, twenty to thirty years were past since that growing period of healthcare architecture. Many hospitals are facing on the phase of restructuring and modernization for their resources. J university hospital is a representative case of hospital development which the growth of facility was stopped by insufficient site area. This study, analysing its past statistics and drawing data of that hospital, presents the characteristics of the changes and basic data of the master planning for the future hospital development.

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공동주택의 발코니 확장이 실내온열환경 및 냉난방 부하에 미치는 영향 (Effect of the Balcony Space on Thermal Environment and Heating/Cooling Load in an Apartment House)

  • 서정민;최영진;송두삼;장현재;김상진
    • 설비공학논문집
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    • 제19권5호
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    • pp.364-371
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    • 2007
  • The former studies for expanding a balcony space were tend to be focused on only quantitative aspects. In this study, the characteristics of balcony space on thermal on vironment in apartment house were analysed. First, the effect of the balcony space on thermal environment of living space was analysed by field measurement. Second, the temperature distribution of the bedroom and heating/cooling load with the balcony expansion were analysed by numerical simulation.