• 제목/요약/키워드: Reverse function

검색결과 505건 처리시간 0.032초

MF Membrane Application for Water Treatment in Japan

  • Okazaki, Minoru
    • 한국막학회:학술대회논문집
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    • 한국막학회 1995년도 추계 총회 및 학술발표회
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    • pp.80-93
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    • 1995
  • Membrane Technology, which has been in use for over twenty five years, has established itself as one of the principle separation methods. With improved technology, Reverse Osmosis ("RO") has been applied to large volume water treatment facilities. UF and MF Membrane Technology has, up until recently, been applied to small scale water treatment facilities. The fouling of membrane has restricted the growth of Membrane Technology in Water Treatment. Membrane fouling compound found in water causes the loss of flux across the membrane by absorbing to membrane and plugging their pores. Various methods have been used in the reduction and prevention of membrane fouling. For RO, a conventional pre-treatment system removes the pollutants, preventing the function decline of RO membrane by keeping SDI < 4 as the standard condition of feed water. UF and MF Membrane Technology that must have pre-treatment function within itself, are required to keep its ability not to be influenced by fouling.y fouling.

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Critical Roles of Deubiquitinating Enzymes in the Nervous System and Neurodegenerative Disorders

  • Das, Soumyadip;Ramakrishna, Suresh;Kim, Kye-Seong
    • Molecules and Cells
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    • 제43권3호
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    • pp.203-214
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    • 2020
  • Post-translational modifications play major roles in the stability, function, and localization of target proteins involved in the nervous system. The ubiquitin-proteasome pathway uses small ubiquitin molecules to degrade neuronal proteins. Deubiquitinating enzymes (DUBs) reverse this degradation and thereby control neuronal cell fate, synaptic plasticity, axonal growth, and proper function of the nervous system. Moreover, mutations or downregulation of certain DUBs have been found in several neurodegenerative diseases, as well as gliomas and neuroblastomas. Based on emerging findings, DUBs represent an important target for therapeutic intervention in various neurological disorders. Here, we summarize advances in our understanding of the roles of DUBs related to neurobiology.

농업실험에서 직선분리함수의 이용 (Linear Discriminant Analysis in Agricultural Experiment)

  • 채영암
    • 한국작물학회지
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    • 제22권1호
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    • pp.80-82
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    • 1977
  • 직선분리함수를 이용하여 소맥 Caribo monosomics 5A와 2D의 수형을 비교하므로써 직선분리함수의 농업에서의 이용성을 검토하였다. 직선분리함수를 계산하여 2가지 수형을 완전히 분리할 수 있었으며 그 결과는 전보 다변량동시분석법의 결과와 일치하였다. 직선분리함수의 의미의 확대해석으로 조사형질수를 감소시킬 수 있는 가능성을 검토 하였다.

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정보기술의 순기능을 이용한 역기능 해소 방안 (Clearing Method of the Reverse Function using the Right Function of Information Technology)

  • 조정원;정승도
    • 한국산학기술학회:학술대회논문집
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    • 한국산학기술학회 2010년도 춘계학술발표논문집 1부
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    • pp.440-442
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    • 2010
  • 정보기술의 역기능을 줄이기 위한 가장 쉬운 접근 방법은 역기능 자체에 초점을 두어 해소할 수 있는 방안에 대해 대책을 세우는 것이라 하겠다. 이에 따라 그동안 법률적, 기술적, 윤리적 접근 방법으로 역기능을 해소하기 위한 노력이 이어져 왔으며, 그 가운데 가장 근본적인 해결 방법으로 윤리적인 접근의 시도인 정보윤리 교육의 실시를 확대하고 있는 상황이다. 그러나 역기능을 줄일 수 있는 또 하나의 방법이 바로 순기능의 강화이며, 본 논문에서는 정보기술의 순기능을 강화하여 역기능을 해소할 수 있는 방안에 대해 제안한다. 이러한 제안이 역기능을 줄이기 위한 노력과 더해진다면 바람직한 유비쿼터스 세상을 열어나가는 밑거름이 될 것이다.

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실외기 기능 교번을 통한 착상 방지 및 지연에 대한 실증 연구 (Feasibility Study on the Frost Prevention and Delay by the Method of Alternating the function of Outdoor Coil Rows)

  • 전창덕
    • 융복합기술연구소 논문집
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    • 제1권1호
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    • pp.1-4
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    • 2011
  • The object of this experimental study is to investigate the effect on frost prevention and delay by the method of alternating the function of outdoor coil rows under the frost conditions ($2^{\circ}C/1^{\circ}C$). The heat pump system with the new method can make frost delay time longer and eliminate frost effectively. It is withstand over 280 minutes without a conventional defrosting method. Maximum COP in case of adopting new method is 13% higher than that in case of reverse cycle defrosting method. Also in case of moving air injection duct faster, the frost delay time is lengthened and its COP is enhanced more.

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An Evidence Retraction Scheme on Evidence Dependency Network

  • Lee, Gye Sung
    • International journal of advanced smart convergence
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    • 제8권1호
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    • pp.133-140
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    • 2019
  • In this paper, we present an algorithm for adjusting degree of belief for consistency on the evidence dependency network where various sets of evidence support different sets of hypotheses. It is common for experts to assign higher degree of belief to a hypothesis when there is more evidence over the hypothesis. Human expert without knowledge of uncertainty handling may not be able to cope with how evidence is combined to produce the anticipated belief value. Belief in a hypothesis changes as a series of evidence is known to be true. In non-monotonic reasoning environments, the belief retraction method is needed to clearly deal with uncertain situations. We create evidence dependency network from rules and apply the evidence retraction algorithm to refine belief values on the hypothesis set. We also introduce negative belief values to reflect the reverse effect of evidence combination.

A new extension of Lindley distribution: modified validation test, characterizations and different methods of estimation

  • Ibrahim, Mohamed;Yadav, Abhimanyu Singh;Yousof, Haitham M.;Goual, Hafida;Hamedani, G.G.
    • Communications for Statistical Applications and Methods
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    • 제26권5호
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    • pp.473-495
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    • 2019
  • In this paper, a new extension of Lindley distribution has been introduced. Certain characterizations based on truncated moments, hazard and reverse hazard function, conditional expectation of the proposed distribution are presented. Besides, these characterizations, other statistical/mathematical properties of the proposed model are also discussed. The estimation of the parameters is performed through different classical methods of estimation. Bayes estimation is computed under gamma informative prior under the squared error loss function. The performances of all estimation methods are studied via Monte Carlo simulations in mean square error sense. The potential of the proposed model is analyzed through two data sets. A modified goodness-of-fit test using the Nikulin-Rao-Robson statistic test is investigated via two examples and is observed that the new extension might be used as an alternative lifetime model.

Botulinum toxin as adjunct therapy in surgical management of a periprosthetic scapular spine fracture: a case report

  • Alex E. White;Christopher M. Brusalis;David S. Wellman;Samuel A. Taylor
    • Clinics in Shoulder and Elbow
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    • 제26권1호
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    • pp.87-92
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    • 2023
  • Six months after undergoing reverse shoulder arthroplasty (RSA) a 73-year-old woman sustained a periprosthetic scapular spine fracture following a fall. She was treated with open reduction and internal fixation (ORIF), followed by botulinum toxin injection into the deltoid muscle to temporarily minimize strain at the fracture. Fracture union was achieved by 3 months, with excellent clinical function more than 1 year following fracture fixation and full resolution of deltoid function. Scapular spine fracture following RSA can be treated with ORIF and temporary deltoid paralysis using botulinum toxin in the immediate postoperative period to safely support fracture healing.

양자간섭소자를 위한 InGaAs/InGaAsP/InP 양자점 분자구조 연구 (Study on InGaAs/InGaAsP/InP Quantum-dot Molecules for Quantum Interference devices)

  • 김진석;김은규;정원국
    • 한국진공학회지
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    • 제15권2호
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    • pp.186-193
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    • 2006
  • 유기금속화학기상증착법으로 InGaAs/InGaAsP/InP 양자점 분자구조를 두 양자점 층간의 거리가 10 nm가 되도록 성장하여 성장된 구조에 대해 C-V, DLTS 및 PL 등의 전기 광학적 물성측정을 하였다. 그 결과 큰 양자점은 작은 양자점과 비교하여 장벽물질의 전도대역 가장자리로부터 먼 쪽에 에너지 준위가 형성되어 있음을 확인하였다. 큰 쪽 양자점에는 최소한 2개 이상의 에너지 준위에 운반자를 포획시킬 수 있음이 확인되었는데, -4 V의 역전압 하에서 측정된 양자점 분자구조의 에너지 준위는 장벽 가장자리로부터 0.35, 0.42, 0.45 eV 의 깊이에 각각 존재하였다. 인가된 전압의 변화에 대하여 약한 전기장 하에서는 양자점 분자구조의 에너지 준위들이 서로 결합되어 있다가 전기장이 증가하면서 이들 두 에너지 준위가 확연히 분리되는 모습을 확인할 수 있었다.

초절전형 Schottky barrier rectifier의 제조 및 그 특성 (Fabrication and Characteristics of ultra power-saving Schottky barrier rectifier)

  • 김준식;최영호;박근영;최시영
    • 대한전자공학회논문지SD
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    • 제39권4호
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    • pp.35-40
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    • 2002
  • 일함수가 낮은 바나듐과 몰리브덴을 장벽금속으로 사용하여 초절전형 SBR을 제조하였다. 일함수가 낮은 장벽금속을 사용함으로서 나타나는 역방향 누설전류를 감소시키기 위해 n-Si층에 아르곤 이온을 1×10/sup 14/ ion/㎠, 40 keV로 주입하였다. 제조된 소자의 전기적 특성은 60 A/㎠의 동일한 전류밀도에서 Mo-SBR의 V/sub F/는 0.39 V이고 V-SBR은 0.25 V로서 매우 낮은 V/sub F/를 나타내었다. 이에 따라 아르곤 이온주입에 의해 제조된 Y-SBR의 역방향 누설전류는 일반적인 V-SBR과 비교하여 20㎂ 이상 감소됨을 확인할 수 있었다. 또한, 아르곤 이온주입으로 인한 소자의 특성저하는 나타나지 않았다.