• 제목/요약/키워드: analysing mechanism

검색결과 49건 처리시간 0.032초

수문관측 및 GIS를 이용한 청계천 모니터링 연구 (Study on the Cheonggyecheon through the hydrological monitoring and GIS)

  • 정창삼;배덕효;김문모
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2007년도 학술발표회 논문집
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    • pp.1464-1468
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    • 2007
  • The restoration project of Cheonggyecheon was conducted to creates the refreshing water-friendly environment in the downtown Seoul. It already have passed almost 2 years after restoration. This project changed environment of Cheonggyecheon dramatically, so historic hydrological data became useless. There are not so many hydrological data to manage and control this newly restored urban stream. The main purpose of this study is collecting and analysing the hydrological data of Cheonggyecheon. At first, we analysed the mechanism of Cheonggyecheon discharge using the sewage design maps and some GIS data. We also monitored the water levels and discharges of 5 main points of Cheonggyecheon. Rating curves of these 5 points were derived. There were 249 blocks of water gates which were located at both sides of bank. We also monitored the behaviors of these water gates. Through the these monitorings, some equations were derived to give useful information to the manager of Cheonggyecheon.

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Protein-Protein Interaction Analysis of KiSS1-Derived Peptide Receptor with Kisspeptin-10 and Kisspeptin-15

  • Nagarajan, Santhosh Kumar
    • 통합자연과학논문집
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    • 제11권1호
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    • pp.9-13
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    • 2018
  • KiSS1-derived peptide receptor, a GPCR protein, binds with the hormone Kisspeptin plays a major role in the neuroendocrine regulation of reproduction. It is important in the onset of puberty and triggers the release of gonadotrophin-releasing hormone. It is a potential drug target for the disorders related to GnRH, hence, analysing the structural features of the receptor becomes important. The three dimensional of the receptor modelled in a previous study was utilised. In this study, we have analysed the protein - protein interaction of the receptor with Kisspeptin 10 and 15. The study revealed the important residues which are involved in the interaction. The result of this study could be helpful in understanding the mechanism of Kiss1 receptor activation and the pathophysiology of the disorders related to the receptor.

이종 분산 컴포넌트 기반 시스템간의 상호운용 수준 측정 기법 (An Interoperability Level Measurement Mechanism between Heterogeneous Distributed Component Based Systems)

  • 류동국;김영철
    • 정보처리학회논문지D
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    • 제12D권1호
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    • pp.63-72
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    • 2005
  • 시스템간의 상호운용성은 국방, 금융, 행정 등 임무 중심적인 시스템의 개발 및 운용에 있어서 많은 관심과 연구가 되고 있는 분야이다. 특히 시스템들이 이종의 컴포넌트들을 기반으로 개발됨에 따라 이종 분산 환경에서 컴포넌트 기반 시스템간의 상호운용성 확보는 매우 중요한 문제로 부각되고 있다. 본 논문은 이러한 문제점을 해결하기 위하여 이종 분산 컴포넌트 기반 시스템간의 상호운용 수준 측정에 필요한 표준 컴포넌트 규격 정의, LISI 능력 모델 확장, 그리고 CBD 방법론의 개발 절차를 반영한 상호운용 질의서를 포함하고 있다. 또한 서로 다른 방식으로 개발된 두 프로토타입 시스템에 대하여 상호운용성 수준을 측정하고 결과를 비교 분석하여 본 본문의 상호운용 능력 모델 및 질의서를 검증하였다.

"동의보감(東醫寶鑑)" 내경편(內景編)에 나타난 질병(疾病)의 병기론적(病機論的) 변증(辨證)화 연구 - 정신기혈(精神氣血)을 중심으로 - (Study on Mechanistic Pattern Identification of Disease for NaeGyungPyen of DongEuiBoGam)

  • 김영목
    • 동의생리병리학회지
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    • 제24권2호
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    • pp.177-186
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    • 2010
  • This study is about researching DongEuiBoGam by analysing with pattern identification of modern Traditional Korean medical patholgy as more logical, systematic and standardized theory. Disease pattern mechanisms of essence, spirit, qi and blood in NaeGyungPyeb of DongEuiBoGam are these. In Essence, this explain mechanism of disease patterns those are seminal emission, dream emission, spermatorrhea, white ooze. These disease pattern's mechanisms are kidney yang deficiency, kidney yin deficiency, heart yang deficiency, heart yin deficiency, heart qi deficiency, spleen qi deficiency and so on. On viewpoints of viscera and bowels they are related with heart, kidney, spleen. And most of them are deficiency from deficiency-excess Pattern Identification. Classifying disease pattern of qi is about upward, downward movement and more concentrated deficiency than excess pattern. Fright palpitations can be classified heart deficiency with timidity, heart blood and qi deficiency, heart qi deficiency, heart blood deficiency, heart qi movement stagnation, water qi intimidating the heart, phlegm-fire harassing the heart, phlegm clouding the pericardium, and so on. Palpitations can be classified heart blood deficiency, heart yin deficiency, heart deficiency with timidity, heart spleen blood deficiency, spleen qi deficiency, phlegm-fire harassing the heart, intense heart fire, and so on. Forgetfulness can be classified heart spleen blood deficiency, heart spleen qi deficiency, kidney essence deficiency, heart qi deficiency, non-interaction between the heart and kidney, etc. for deficiency pattern, phlegm clouding the pericardium for excess pattern. In Blood just say inside bleeding pattern's category, there are nose bleeding, flopping syncope, qi counterflow, blood vomiting, hemoptysis, spitting of blood, bloody stool, hematuria, and so on. Like these, this study identify pattern of disease in DongEuiBoGam by mechanism of disease theory.

공동저작 시스템에서의 동시성 제어와 쓰기 권한 제어 (A Framework for Concurrency Control and Writing Authority Control in Collaborative Writing Systems)

  • 유재홍;성미영
    • 한국정보처리학회논문지
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    • 제7권2호
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    • pp.347-354
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    • 2000
  • 이 논문에서는 공동제작 시스템에서의 동시성 제어와 쓰기 권한 제어를 위한 효율적인 방안을 제시한다. 본 연구에서 다루는 공동젖작시스템의 문서는 논리 객체들로 구성된 트리 구조와 트리 구조의 단말에 연결된 내용 조작들로 표현된다. 이러한 문서의 논리구조를 다루는 공동저작 시스템의 동시성 제어 기법을 우리는 계층적으로 구성된 객체들에 대해 각 계층별로 잠금을 요청할 수 있는 다중 잠금(multiple granularity locking) 기법을 확장하는 접근을 채택하였다. 계층적으로 구성된 객체들에 대한 연산을 세분화하여 잠금 호환 테이블(locking compatibility table)을 정의하고, 이 테이블을 기반으로 잠금을 허락하는 확장된 다중 장금(extended multiple granularity locking) 기법을 제안한다. 이 기법은 여러 사용자들의 공유 객체에 대한 동시 접근을 극대화하는 장점이 있다. 또한 이 논문에서는 그룹/비그룹(Group/Non-Group) 개념을 적용하여 비그룹 사용자들의 쓰기를 방지함으로써 매우 합리적으로 저작권을 보호할 수 있는 쓰기 권한 기법을 제안한다.

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중국기업의 사내벤처 운영과정과 성공요인: 하이얼(Haier) 중심으로 (Operational Process and Success Factors of Corporate Venture in a Chinese Company: A Case Study of Haier)

  • 호우위로;김원경;허문구
    • 아태비즈니스연구
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    • 제14권4호
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    • pp.87-113
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    • 2023
  • Purpose - Focusing on Haier, a successful corporate venture in China, we analyse the operating mechanism and success factors of corporate venture, and reveal the necessary factors for the successful implementation of corporate venture. Design/methodology/approach - This study is a single case study centred on Haier, a successful corporate venture in China. Findings - The operational process of Haier's corporate venture includes six key aspects: project selection, team building, resource allocation and support, project implementation, risk control measures, performance evaluation and rewards. In terms of success factors, the support of top management with leadership capability of value creation and sharing is very important for the success of corporate venture. Secondly, a multi reward mechanism can be introduced to motivate employees and improve performance. Thirdly, it is important to integrate corporate culture into the operating mechanism of an corporate venture. Fourthly, flexible operations that break down rigid organisational boundaries and transform the organisation into a more open platform for entrepreneurship can increase the likelihood of success. Finally, empowering employees with operational discretion can also have a positive impact on the success of an Corporate Venture. Research implications or Originality - This study contributes to theory and practice by analysing the success conditions of corporate venture, providing new understanding and drawing new perspectives, especially from the experience of Haier. The results suggest strategies and flexibility for successfully pursuing corporate venture, and provide important experience for international companies to help them gain competitive advantage in global competition. It also helps corporate leaders to promote new directions and innovations and improve their strategies to respond to dynamic environments.

드롭랜딩 시 backpack 중량 변화에 따른 충격 흡수 기전 (Shock Attenuation Mechanism in Drop Landing According to the Backpack Weight Changes)

  • 최치선;남기정;신인식;서정석;은선덕;김석범
    • 한국운동역학회지
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    • 제16권2호
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    • pp.25-35
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    • 2006
  • The purpose of this study was to investigate the shock attenuation mechanisms while varying the loads in a backpack during drop landing. Ten subjects (age: $22.8{\pm}3.6$, height: $173.5{\pm}4.3$, weight: $70.4{\pm}5.2$) performed drop landing under five varying loads (0, 5kg. 10kg. 20kg. 30kg). By employing two cameras (Sony VX2100) the following kinematic variables (phase time, joint rotational angle and velocity of ankle, knee and hip) were calculated by applying 2D motion analysis. Additional data, i.e. max vertical ground force (VGRF) and acceleration, was acquired by using two AMTI Force plates and a Noraxon Inline Accelerometer Sensor. Through analysing the power spectrum density (PSD), drop landing patterns were classified into four groups and each group was discovered to have a different shock attenuation mechanism. The first pattern that appeared at landing was that the right leg absorbed most of the shock attenuation. The second pattern to appear was that subject quickly transferred the load from the right leg to the left leg as quickly as possible. Thus, this illustrated that two shock attenuation mechanisms occurred during drop landing under varying load conditions.

소형 표류부이를 이용한 안목해안 표층 연안류 관측 (Surface current measurements using lagrangian Drifters in Anmok)

  • 임학수;김무종;심재설
    • 한국연안방재학회지
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    • 제4권spc호
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    • pp.245-253
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    • 2017
  • In this study, surface currents measured by small lagrangian GPS drifters (Aquadrifter) in Anmok coastal waters were analysed to account for the variability of nearshore surface current and wave-induced current to understand sediment transport mechanism near the crescentic bars in the surf-zone and near Kangneung breakwater and submerged breakwater in Anmok. The 8 times lagrangian drifter experiments were conducted mostly during in 2nd, 3rd, 4th intensive measurements in winter, summer, and spring seasons with long-term wave observation at the station W1. The analysed surface currents near the breakwaters in Anmok show that wave-induced currents at the middle of the submerged breakwater were separated and flowed toward the shoreline but offshore currents were dominant through the channels between the breakwaters. The longshore currents near the shoreline were flowed to the northwest (southeast) depending on the incoming waves from ENE (NNE). The surface nearshore offshore currents were generated mostly by waves and winds in case of high and low wave energy environments. Using the small-size lagrangian surface drifter experiments, we successfully measured longshore and offshore wave-induced currents in the surf-zone and near submerged breakwater close to Kangneung breakwater. The drifter experiment results show the availability of direct observation of nearshore surface currents to understand the mechanism of sediment transport analysing observed wave-induced current and ebb-current in the surf-zone generated by incoming waves and local winds.

한약을 이용한 항암 실험 연구의 경향과 연구 방향 (An Anti-cancer experimental study using herbs)

  • 임성우
    • 대한한방내과학회지
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    • 제22권1호
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    • pp.73-78
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    • 2001
  • After examining and analysing the medicinal herbs of fifty-three experimental papers, we studied their effects on immediate tumors in specific cancers. We did not study the influence on the life span of general cancerous cells. We looked to see if the combined usage of medicinal herbs and anticancer agents inhibited the tumor cell's growth. The serum test and blood cell count test showed if the medicinal herbs inhibited the side effects of the anticancer agent. The test showed that more than 80 percent of used medicinal herbs, brought anticancer activities. However, anticancer experimental studies using medicinal herbs have draw-backs. First, it is difficult to choose a prescription using the standards of Oriental Medicine because we are testing a mouse not a man. Second, because we only observed the indirect effect on the whole physiological regulation caused by the synergic effects of the complex prescription, we are not able to understand the detailed mechanism of the herbs. Therefore; if the anticancer effect of the herbs is proved by the experiment, we need to research the concrete medical action of medicinal herbs and the immunological analysis of herbal medicines on the body.

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Study of stability and evolution indexes of gobs under unloading effect in the deep mines

  • Fu, Jianxin;Song, Wei-Dong;Tan, Yu-Ye
    • Geomechanics and Engineering
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    • 제14권5호
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    • pp.439-451
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    • 2018
  • The stress path characteristics of surrounding rock in the formation of gob were analysed and the unloading was solved. Taking Chengchao Iron Mine as the engineering background, the model for analysing the instability of deep gob was established based on the mechanism of stress relief in deep mining. The energy evolution law was investigated by introducing the local energy release rate index (LERR), and the energy criterion of instability of surrounding rock was established based on the cusp catastrophe theory. The results showed that the evolution equation of the local energy release energy of the surrounding rock was quartic function with one unknown and the release rate increased gradually during the mining. The calculation results showed that the gob was stable. The LERR per unit volume of the bottom structure was relatively smaller, which mean the stability was better. The LERR distribution showed that there was main energy release in the horizontal direction and energy concentration in the vertical direction which meet the characteristics of deep mining. In summary, this model could effectively calculate the stability of surrounding rock in the formation of gob. The LERR could reflect the dynamic process of energy release, transfer and dissipation which provided an important reference for the study of the stability of deep mined out area.