• 제목/요약/키워드: general circulation

검색결과 489건 처리시간 0.028초

종합병원 설비집약적인 부문의 리모델링 방안에 관한 연구 - 중앙진료부와 공급부를 중심으로 - (A Study on the Remodeling Strategy for the Equipment Intensive Areas of General Hospitals - Focused on the Diagnosis/Treatment Areas, the Supply Areas -)

  • 김하진
    • 한국실내디자인학회논문집
    • /
    • 제14권1호
    • /
    • pp.100-108
    • /
    • 2005
  • If remodeling is defined as activities that restore the overall function of a building up to the standards currently demanded rather than as a simple replacement or repair of old facilities and equipment, the main task of remodeling should be the reduction in differences between areas, establishment of a functional linkage between departments and setup of a smooth circulation system. Therefore, this study is an analysis of remodeling strategies and construction processes to resolve major tasks of remodeling. Through this research we acquire concluding remarks. 1) The remodeling strategies of equipment-intensive areas can be divided into two measures: utilizing the existing buildings (the main buildings) the most, and of concentrated relocation in the new buildings. The former method is advantageous in that the main building serves as a center in hospital layouts because concentrated placement of the diagnosis/ treatment area and the supply area benefit the overall operation in terms of functions. However, the measure has limits in that it is difficult to install the facilities and equipment of the new demands due to the low ceilings, which serve as a potential challenge in future growth and changes. 2) The latter measure is the one in which equipment-intensive areas and the areas that are absolutely short of space are first placed in the new buildings while other areas (the outpatient area, the administration area and the miscellaneous areas) are in the existing building (main building). Given the possibility of development In the future, concentrated placement in the new buildings can be said to be more effective order to actively address future growth and changes.

기후변화 시나리오에 따른 미래 논벼의 소비수량 및 생산량 변화 분석 (Analyzing Consumptive Use of Water and Yields of Paddy Rice by Climate Change)

  • 이태석;최진용;유승환;이상현;오윤경
    • 한국농공학회논문집
    • /
    • 제54권1호
    • /
    • pp.47-54
    • /
    • 2012
  • Agriculture is dependable to weather condition and its change so that it is necessary to understand the impacts of climatic change. The aim of this study is to analyze the change of consumptive use of water and rice yield due to climate change using CERES-Rice. In this study, the weather data of three emission scenario of A1B, A2 and B1 created from CGCM (Coupled General Circulation Model) were used from 2011 to 2100, and downscaled daily weather data were simulated using LARS-WG (Long Ashton Research Station Weather Generator). The input data for cultivated condition for simulating CERSE (Crop-Environment Resource Synthesis)-Rice were created referring to standard cultivation method of paddy rice in Korea. The results showed that consumptive uses of water for paddy rice were projected decreasing to 4.8 % (2025s), 9.1 % (2055s), 12.6 % (2085s) comparing to the baseline value of 403.5 mm in A2 scenario. The rice yield of baseline was 450.7 kg/10a and projected increasing to -0.4 % (2025s), 3.9 % (2055s), 17.5 % (2085s) in A1B scenario. The results demonstrated relationships between consumptive use of water and rice yields due to climate change and can be used for the agricultural water resources development planning and cultivation method of paddy rice for the future.

Sources of the High-Latitude Thermospheric Neutral Mass Density Variations

  • Kwak, Young-Sil;Richmond, Arthur;Deng, Yue;Ahn, Byung-Ho;Cho, Kyung-Suk
    • Journal of Astronomy and Space Sciences
    • /
    • 제27권4호
    • /
    • pp.329-335
    • /
    • 2010
  • We investigate the sources of the variation of the high-latitude thermospheric neutral mass density depending on the interplanetary magnetic field (IMF) conditions. For this purpose, we have carried out the National Center for Atmospheric Research Thermosphere-Ionosphere Electrodynamics General Circulation Model (NCAR-TIEGCM) simulations for various IMF conditions under summer condition in the southern hemisphere. The NCAR-TIEGCM is combined with a new empirical model that provides a forcing to the thermosphere in high latitudes. The difference of the high-latitude thermospheric neutral mass density (subtraction of the values for zero IMF condition from the values for non-zero IMF conditions) shows a dependence on the IMF condition: For negative $B_y$ condition, there are significantly enhanced difference densities in the dusk sector and around midnight. Under the positive-$B_y$ condition, there is a decrease in the early morning hours including the dawn side poleward of $-70^{\circ}$. For negative $B_z$, the difference of the thermospheric densities shows a strong enhancement in the cusp region and around midnight, but decreases in the dawn sector. In the dusk sector, those values are relatively larger than those in the dawn sector. The density difference under positive-$B_z$ condition shows decreases generally. The density difference is more significant under negative-$B_z$ condition than under positive-$B_z$ condition. The dependence of the density difference on the IMF conditions in high latitudes, especially, in the dawn and dusk sectors can be explained by the effect of thermospheric winds that are associated with the ionospheric convection and vary following the direction of the IMF. In auroral and cusp regions, heating of thermosphere by ionospheric currents and/or auroral particle precipitation can be also the source of the dependence of the density difference on the IMF conditions.

강직성척추염(Ankylosing Spodylitis)에 대한 한의학적 이해 (A Study on Ankylosing Spodylitis in Traditional Korean Medical Perspective)

  • 김종현;윤은경;백유상;정창현;장우창;류정아
    • 대한한의학원전학회지
    • /
    • 제25권3호
    • /
    • pp.23-38
    • /
    • 2012
  • Objective : Ankylosing Spodylitis(AS) is a chronic inflammatory disease that is notorious for its difficulty to cure. This study aims to interpret the mechanism of AS in the Traditional Korean Medical(TKM) perspective, and to understand the role of the spine. Method : Clinical manifestations of AS, epidemiological data and clinical cases were interpreted by traditional methodology. Result : The young age group of patients suffering from this condition suggests that the cause of this condition is not solely linked to deficiency of the Kidney[腎], which is a general cause for bone disease. Its symptoms are linked to obstruction in the upper body, which results in disturbance of Jeong(精) collection in the lower body. Based on other accompanying symptoms, together with its character as an autoimmune disease, a strong link to the spirit of the heart[心神] can be suggested. Conclusion : AS is closely linked not only to essence of kidney[腎陰], but to the spirit of the heart[心神] as well. From the TKM analysis of the spine, we can understand it as the basic pathway for the fundamental Gi(氣) circulation.

외부순환 공기부양반응기에서 낮은 주파수의 압력 변동 (Low-Frequency Pressure Fluctuations in an External-Loop Airlift Reactor)

  • 최근호
    • Korean Chemical Engineering Research
    • /
    • 제58권4호
    • /
    • pp.665-674
    • /
    • 2020
  • 외부순환형 공기부양반응기에서 낮은 주파수의 압력 변동에 대해 연구하였다. 상승관과 하강관의 상부와 하부에 설치된 내압관의 액면을 휴대폰으로 촬영하는 방법으로 빠른 주파수의 변동이 제거된 압력을 측정하였다. 자기상관함수와 교차상관함수의 계산을 통해 압력의 주기적인 변동을 확인하였다. 기체속도가 일정하여도 순환액체의 관성으로 인해 압력은 물론이고 상승관과 하강관내의 기체체류량도 주기적으로 변동하였다. 일반적으로 기체유속이 증가할수록 압력 변동의 강도는 커졌다. 비분산 액체높이가 0.04 m일 때 압력 변동의 주기는 기체속도가 0.14 ms-1에서 극대값을 보여주었다. 이는 기체속도가 커질수록 순환 액체속도의 증가율은 둔화하고 효과적으로 순환하는 액체의 부피가 감소하므로 순환액체의 관성이 극대값을 보이기 때문이다.

동아시아 기온과 강수의 불확실성 평가 (An Uncertainty Assessment of Temperature and Precipitation over East Asia)

  • 신진호;김민지;이효신;권원태
    • 한국수자원학회:학술대회논문집
    • /
    • 한국수자원학회 2008년도 학술발표회 논문집
    • /
    • pp.299-303
    • /
    • 2008
  • In this study, an uncertainty assessment for surface air temperature(T2m) and precipitation(PCP) over East Asia is carried out. The data simulated by the intergovermental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) Atmosphere-Ocean coupled general circulation Model (AOGCM) are used to assess the uncertainty. Examination of the seasonal uncertainty of T2m and PCP variabilities shows that spring-summer cold bias and fall warm bias of T2m are found over both East Asia and the Korea peninsula. In contrast, distinctly summer dry bias and winter-spring wet bias of PCP over the Korea peninsula is found. To investigate the PCP seasonal variability over East Asia, the cyclostationary empirical orthogonal function(CSEOF) analysis is employed. The CSEOF analysis can extract physical modes (spatio-temporal patterns) and their undulation (PC time series) of PCP, showing the evolution of PCP. A comparison between spatio-temporal patterns of observed and modeled PCP anomalies shows that positive PCP anomalies located in northeastern China (north of Korea) of the multi-model ensemble(MME) cannot explain properly the contribution to summer monsoon rainfalls across Korea and Japan. The uncertainty of modeled PCP indicates that there is disagreement between observed and MME anomalies. The spatio-temporal deviation of the PCP is significantly associated with lower- and upper-level circulations. In particular, lower-level moisture transports from the warm pool of the western Pacific and corresponding moisture convergence significantly contribute to summer rainfalls. These lower- and upper-level circulations physically consistent with PCP give a insight of the reason why differences between modeled and observed PCP occur.

  • PDF

국외 간호학술지에서의 의료기관 내 실행연구 동향분석 (Action Research in Hospital Settings: A Literature Review of International Nursing Journals)

  • 문정은;송미옥;김희영;박현영;김은아;김윤민;장금성
    • 간호행정학회지
    • /
    • 제22권1호
    • /
    • pp.46-56
    • /
    • 2016
  • Purpose: Purpose of this study was to identify major trends of action research from 2006 to 2013 and suggest directions for activating and advancing domestic action research in nursing. Methods: A review was made of 118 action research studies in hospital settings reported in international journals. Search from PubMed, Ovid, and CINHAL was done using analysis criteria developed by the researchers. General and methodological characteristics and focus on changing outcomes of action research were analyzed. Results: The major group of researchers belonged to colleges/universities (40.7%). Methods included use of qualitative methods (61.0%), research questions (24.6%), and use of theoretical models (35.6%). Prevalent data collection methods were interviews (20.2%), and 48.3% showed more than a 1-cycle process including spiral circulation structure. Focus of changing outcomes of the 56 papers including more than 1-cycle were practice (66.1%), environment (8.9%), client-nurse (7.1%). Conclusion: Trends in action research in nursing were identified providing necessary reasons to increase action research in nursing as follows: needs of various researchers including stakeholders as well as healthcare providers, various research designs including unconstrained reflection and writing, specific presentation of adapted theoretical models and action strategies, and quality assurance for validity and reliability of research processes and outcomes.

뇌졸중 환자의 보완대체요법 이용실태 (Utilization of Alternative Complementary Remedies of Stroke Patients)

  • 목순악;조명옥
    • 성인간호학회지
    • /
    • 제16권3호
    • /
    • pp.432-441
    • /
    • 2004
  • Purpose: This descriptive survey was conducted to investigate out the utilization of alternative complementary remedies for stroke patients. Method: The subject for this study were 194 patients, selected from inpatients department of 11 major medical center at Busan and Ulsan. Data were collected from August 19th to November 12th, 2002 through interview schedule designed by the investigator. Data was analyzed with frequency, percentage, and ${\chi}^2$-test by using SPSS Win 10.0. Results: 71.6% of objects has used alternative complementary remedies. The use of alternative complementary remedies according to disease-related features was statistically significant in concurrent diseases(${\chi}^2=15.03$, p=0.001), rehabilitation treatment(${\chi}^2=6.341$, p=0.012) and the level of ADL(${\chi}^2=19.63$, p=0.000). The most frequently used therapies were diet and nutrition(31.8%). The patients with less than 3month onset and in the mid-period of treatment frequently used remedies. The reason for using remedies were the belief in it's effects on treatment, but most patients responded was not effective(30.9%) or not much improvement after using remedies. Most of the patients were recommended to use remedies by their neighbors(27.3%) and family members(25.2%). The family members were most supportive in therapy(56.1%). The 28.1% of patients responded that the remedies were effective in promoting blood circulation and 95% of the patients had not experienced side effects. Conclusion: These results could be the basic material in developing nursing intervention for cerebral apoplexy patients.

  • PDF

지구 대기가 지구 기준계에 미치는 영향 : 기존 모델 분석 (Effects of Earth's Atmosphere on Terrestrial Reference Frame : A Review)

  • 나성호;조정호
    • 지구물리와물리탐사
    • /
    • 제18권3호
    • /
    • pp.133-142
    • /
    • 2015
  • 지구대기압력이 지각에 변위를 일으키는 현상은 오래 전부터 인식되었으며, 근래의 측지-측량, 특히 우주측지에서 이의 정확한 산정이 필요하게 되었다. 육지에서의 대기 하중에 의한 변형은 주어진 대기압 분포와 하중함수로부터 바로 계산할 수 있으며, 해양에 근접한 지역에서는 근사적인 모델이 사용되고 있다. 지구 대기대순환의 변화와 계절별 지구 양반구에서의 대기압의 분포의 변화들이 각각 지구자전속도 변화와 극운동의 가장 큰 요인으로 알려져 있으며, 바람과 대기압의 변화는 여러 주기영역에서 지구상의 지점들의 좌표의 섭동 및 지구자전상태의 큰 변화 요인이 되고 있다. 본 연구에서는 이와 같은 현상들을 기술하며 관련된 이론과 모델들을 요약하고, 또한 한반도를 지나가는 가상적인 태풍에 의한 효과를 예시하였다. 마지막으로 관련된 몇몇 문제점들과 향후 연구방향을 논의하였다.

사용자 경험에 기반한 자기주도학습 수학 프로그램 개발 (Development of mathematical program based on user experience for self-directed learning)

  • 이가람;김정은;구성우;안원주;조규락
    • 컴퓨터교육학회논문지
    • /
    • 제19권3호
    • /
    • pp.21-34
    • /
    • 2016
  • 본 연구는 사용자 경험에 기반한 자기주도학습을 위한 수학 프로그램을 개발하는 데 그 목적이 있다. 이를 위해서 교육 프로그램의 일반적인 설계모형인 ADDIE 모형에 따라 분석, 설계, 개발, 실행 및 평가의 과정을 거쳐 프로그램을 설계하고 개발하였다. 프로그램은 자기주도학습 증진을 위한 사용자 경험 요소를 고려하여 구현되었으며, 개발된 프로그램의 특징은 다음과 같다. 첫째, 교수자는 웹으로 편리한 문제출제가 가능하고, 학습자는 어플리케이션을 통해 언제 어디서나 즉시 접속하여 문제를 풀어볼 수 있다. 둘째, 학습자는 풍부한 문제데이터베이스를 기반으로 다양한 유형의 문제풀이와 실시간 질문이 가능하며, 교수자는 그에 대한 즉각적인 피드백이 가능하다. 셋째, 지면 및 동영상 해설 제공과 오답노트의 활용으로 학습자의 순환학습을 가능하게 하며, 교수자는 그룹 성취도 관리를 통하여 학습자의 능동적 학습관리를 지원한다.