• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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• pp.205-207
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• 2013

In a situation that building energy consumption is increasing worldwide, the research utilizing BIM technology to analyze building energy has been actively conducted. On the other hand, data input method of the building energy analysis has been still manually entered. This paper proposed a improved input method of required information for building energy analysis using the ECO2-OD program. As a result, although some required information of BIM based design software could be almost entered when it comes to general information and architectural sector, it has a problem to be handled in HVAC sector. Therefore, in the both of general and architectural sectors, the BIM information from the BIM-based design software could be directly used to automatically and systematically input the information. Future research should be studied the algorism and method in connection with data exchange to utilize input method of ECO2-OD from BIM data.

• 대한화학회지
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• 제55권1호
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• pp.112-123
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• 2011

화학은 단계별로 개념이 연계 발전되는 학문 체계를 가지므로 고등학교의 화학 I II의 교육 내용은 대학 일반화학과 연계성 측면에서 매우 중요하다. 현재 고등학교 학생들은 심화 선택 최상위 과목인 화학II를 배우지 않고도 이공계 대학에 진학하는 것이 가능하다. 따라서 이러한 학생들이 일반화학을 수강하면서 얼마나 어려움을 겪는지 알아보기 위해 일반화학과 고등학교 화학교재의 내용 연계성 및 학생들의 인식을 조사했다. 연구 결과, 화학I에서는 일반화학 필수 개념의 약 27%밖에 소개하고 있지 않지만, 화학II에서는 약 62%의 내용이 일반화학과 연계되었다. 전남 M대학의 학생들 중 화학II를 배우지 않은 약 70%의 학생들은 일반화학을 배울 때 상대적으로 더 어려워했고, 학업성취도도 상대적으로 낮았을 뿐 아니라, 화학에 대해 흥미도도 낮게 조사되었다.

• 한국정보통신학회논문지
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• 제15권4호
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• pp.780-788
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• 2011

본 논문에서는 시스템 운용자가 현장에 직접 상주하지 않고도 WAP 및 ME 기반의 개인 휴대폰(Feature phone)과 인터넷 웹을 연동해서 언제 어디서나 시스템의 운용 상태를 모니터링하고 제어할 수 있는 모델을 제안한다. 제안하는 모델은 기존에 PDA와 WLAN 기술을 결합한 TCP/IP 통신기반의 원격장치 데이터 모니터링 시스템이 가지는 공간적인 제약을 극복하고, 사용자에게 이동성을 보장하고자 한다. 제안하는 시스템의 테스트를 위해, 제어 대상 시스템은 AC나 DC전원 제어를 필요로 하는 개별모듈로 구성한다. 로컬 시스템에 대한 제어 및 모니터링을 위한 프로그램은 편리성과 신뢰성을 위해 NI Labview를 사용해 개발한다. 또한 웹 서버는 APM 연동을 사용해서 개발자의 범용성이 보장되게 한다. 그리고 모바일 접속환경은 개인 휴대단말의 범용성을 보장하기위해 WML과 mHTML 언어를 이용해서 개발한다. 실험을 통해서 본 논문에서 제안하는 모델이 기존 시스템이 가지는 공간적 제약사항과 이동성 문제를 해결함을 보였다.

• 동의신경정신과학회지
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• 제20권4호
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• pp.31-52
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• 2009

Objectives : The purpose of this study was to investigate the connection between Symptom Checklist-90-R (SCL-90-R), Self-Efficacy Scale(SES) and Qi-gong. Methods : We investigated 141 oriental medical students in Daegu consisted of 36 subjects training Qi and 105 subjects not training. We had all subjects to reply to demographic questimnaire, SCL-90-R questimnaire and SES questimnaire. We made the Qi-training group write the kinds and periods of Qi seperately. Results & Conclusions : 1. The lower SCL-90-R score, the subjects had higher SES score. Total Self-Efficacy score was connected Somatization, Interpersonal Sensitivity, Depression, Paranoid Ideation, Paranoid Ideation score significantly. General Self-Efficacy score was connected Somatization, Obsessive- Compulsive, Interpersonal Sensitivity, Paranoid Ideation, Paranoid Ideation score significantly. Social Self-Efficacy score was connected Interpersonal Sensitivity, Depression, Anxiety score significantly. 2. The Qi-training group's mean all the details of SCL-90-R lower than the non-training's significantly in Somatization, Obsessive-Compulsive, Interpersonal Sensitivity, Depression, Hostility, Paranoid Ideation, Psychoticism. And the Qi-training group's mean all the details of SES higher than the non-training's, significantly in General Self-Efficacy. 3. In Qi-training group, as training longer, mean Somatization, Interpersonal Sensitivity, Depression, Anxiety, Hostility scores get lower and mean Total Self-Efficacy score get higher significantly.

• Structural Engineering and Mechanics
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• 제9권3호
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• pp.241-256
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• 2000

The major sources of energy dissipation in steel frames with partially restrained (PR) connections are evaluated. Available experimental results are used to verify the mathematical model used in this study. The verified model is then used to quantify the energy dissipation in PR connections due to hysteretic behavior, due to viscous damping and at plastic hinges if they are formed. Observations are made for two load conditions: a sinusoidal load applied at the top of the frame, and a sinusoidal ground acceleration applied at the base of the frame representing a seismic loading condition. This analytical study confirms the general behavior, observed during experimental investigations, that PR connections reduce the overall stiffness of frames, but add a major source of energy dissipation. As the connections become stiffer, the contribution of PR connections in dissipating energy becomes less significant. A connection with a T ratio (representing its stiffness) of at least 0.9 should not be considered as fully restrained as is commonly assumed, since the energy dissipation characteristics are different. The flexibility of PR connections alters the fundamental frequency of the frame. Depending on the situation, it may bring the frame closer to or further from the resonance condition. If the frame approaches the resonance condition, the effect of damping is expected to be very important. However, if the frame moves away from the resonance condition, the energy dissipation at the PR connections is expected to be significant with an increase in the deformation of the frame, particularly for low damping values. For low damping values, the dissipation of energy at plastic hinges is comparable to that due to viscous damping, and increases as the frame approaches failure. For the range of parameters considered in this study, the energy dissipations at the PR connections and at the plastic hinges are of the same order of magnitude. The study quantitatively confirms the general observations made in experimental investigations for steel frames with PR connections; however, proper consideration of the stiffness of PR connections and other dynamic properties is essential in predicting the dynamic behavior.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제28권1호
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• pp.7-21
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• 2022

Purpose: As the pandemic period continues, various attempts are being made to new medical spaces in the medical society. Many hospitals, including existing general hospitals, have been effected by infected patients and are showing limitations in patient care capacity. Mobile-hospitals may be the starting point for the development of new environment in the medical society and healthcare facilities which are not replacing the role of existing hospitals. Mobile-hospitals can possibly respond to situations that require medical services and provide emergency care for various demands in connection with existing healthcare facilities. Methods: Through a total of five investigations/analysis, medical functions that can be inserted into mobile-hospitals based on modular architecture are set. The first is the analysis of domestic legal guidelines, the second is the analysis of previous studies, the analysis of emergency medical facilities and other medical spaces of hospitals to be compared, the fourth is the analysis of medical spaces of actual mobile hospital projects. Results: Through five analyses, medical functions applicable to the modular building platform were finally established. Mobile hospitals can be used not only in disaster sites such as infectious diseases, but also in medical underprivileged areas or general hospitals. Therefore, it is necessary to establish medical functions that meet the specificity of mobile hospitals along with the functions of existing fixed medical facilities. Furthermore, various studies such as use in international aid, use in normal times, and connection with other platform-based medical facilities are considered necessary. Implications: Through 5 strategies of analysis, 41 medical functions which can be applied to UNIT are decided and these functions will be placed where medical services will be required.

• Nutrition Research and Practice
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• 제18권2호
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• pp.165-179
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• 2024

BACKGROUND/OBJECTIVES: Mushroom consumption, rich in diverse nutrients and bioactive compounds, is suggested as a potential significant contributor to preventing cardiometabolic diseases (CMDs). This systematic review aimed to explore the association between mushrooms and cardiometabolic health outcomes, utilizing data from prospective cohort studies and clinical trials focusing on the general population, with mushrooms themselves as a major exposure. SUBJECTS/METHODS: All original articles, published in English until July 2023, were identified through searches on PubMed, Ovid-Embase, and google scholar. Of 1,328 studies, we finally selected 5 prospective cohort studies and 4 clinical trials. RESULTS: Existing research is limited, typically consisting of 1 to 2 studies for each CMD and cardiometabolic condition. Examination of articles revealed suggestive associations in some cardiometabolic conditions including blood glucose (both fasting and postprandial), high-density lipoprotein cholesterol related indices, high-sensitivity C-reactive protein, and obesity indices (body weight, body mass index, and waist circumference). However, mushroom consumption showed no association with the mortality and morbidity of cardiovascular diseases, stroke, and type 2 diabetes, although there was a potentially beneficial connection with all cause-mortality, hyperuricemia, and metabolic syndrome. CONCLUSION: Due to the scarcity of available studies, drawing definitive conclusions is premature. Further comprehensive investigations are needed to clarify the precise nature and extent of this relationship before making conclusive recommendations for the general population.

• 한국병원경영학회지
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• 제17권3호
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• pp.83-98
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• 2012

The purpose of this study is to investigate IPA(Importance Performance Analysis) of the hospital choice factor between internal and external customers at S general hospital. This study was used 5 types of choice factors such as physical, interpersonal, accessibility, connection, and image. This study was used Importance Performance Analysis which can be applied to identify the strengths and weaknesses attributes from hospital customers' viewpoint. The sample was selected 116 patients and 97 internal employees for S hospital in Seoul. Data were collected with self-reported questionnaires from April 1 to 29 in 2012 and analyzed by paired t-test, scatter plot graph. The result of the study was that the perceptional gaps between internal and external consumers were existed in physical, connection and image factors, except interpersonal, accessibility. The "Keep up the good work" quadrant was interpersonal factor, and the "Low Priority" quadrant was accessibility. The findings of this study will be applied to make hospital strategic decision making and to improve marketing service quality in administrative department of hospital.

• 한국정보과학회논문지:정보통신
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• 제30권2호
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• pp.222-232
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• 2003

무선 정보 환경의 변화에 따라 다양한 정보에 대한 풍족감이 요구되고 이에 따라 많은 근거리 무선 통신 기술들이 개발 연구되어 왔으며, 그 중에서도 최근 근거리 무선 통신의 표준으로 각광받고 있는 Bluetooth는 많은 관심을 받고 있는 실정이다. 그러나 블루투스가 자체 보안 요소는 좀 더 큰 네트워크에 적용하기엔 많은 취약점을 보이고 있다. 따라서 본 논문에서는 블루투스의 일반적인 개요 및 블루투스의 보안에 관해서 알아보고 취약점을 분석한 뒤 이를 바탕으로 안전한 블루투스 조회과정에서의 안전한 연결을 거쳐 ECDSA와 그룹 키를 이용한 블루투스 피코넷의 형성과 유지 과정을 제안함으로써 블루투스가 가지는 자체 보안성의 취약점을 보완한 안전한 블루투스 시나리오를 제시하였다.

• 대한조선학회논문집
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• 제54권1호
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• pp.26-33
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• 2017

In this study, the surface marker method, one of the particle tracking methods, used to track the free surface is extended to cover the more general cases easily including the collision and separation of the free surface. In surface particle method to redistribute particles effectively using the grid system, the free surface is composed of the sum of quadrilaterals having four curves where fixed markers are placed at ends of each curve. Fixed markers are used to know how curves are connected to each other. The position of fixed markers can move as the free surface deforms but all fixed markers cannot be deleted during all time of simulation to keep informations of curve connection. In the case of the collision or separtion of the free surface where several curves can be intersected disorderly, severe difficulties can occur to define newly states of curve connection. In this study, the adaptable surface parTicle method without fixed markers is introduced. Intersection markers instead of the fixed markers are used to define quadrilaterals. The position of the intersection markers is defined to be the intersection point between the free surface and the edge of the grid and it can be added or deleted during the time of simulation to allow more flexibilities. To verify numerical schemes, two flow cases are simulated and the numerical results are compared with other's one and shown to be valid.