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Stello, D.,Bruntt, H.,Kjeldsen, H.,Bedding, T. R.,Arentoft, T.,Gilliland, R. L.,Nuspl, J.,Kim, S.-L.,Kang, Y. B.,Koo, J.-R.,Lee, J.-A.,Sterken, C.,Lee, C.-U.,Jensen, H. R.,Jacob, A. P.,Szabó,, R Blackwell Publishing Ltd 2007 Monthly notices of the Royal Astronomical Society Vol.377 No.2
<P>ABSTRACT</P><P>Measuring solar-like oscillations in an ensemble of stars in a cluster, holds promise for testing stellar structure and evolution more stringently than just fitting parameters to single field stars. The most-ambitious attempt to pursue these prospects was by Gilliland et al. who targeted 11 turn-off stars in the open cluster M67 (NGC 2682), but the oscillation amplitudes were too small (<20 μmag) to obtain unambiguous detections. Like Gilliland et al. we also aim at detecting solar-like oscillations in M67, but we target red giant stars with expected amplitudes in the range 50–500 μmag and periods of 1 to 8 h. We analyse our recently published photometry measurements, obtained during a six-week multisite campaign using nine telescopes around the world. The observations are compared with simulations and with estimated properties of the stellar oscillations. Noise levels in the Fourier spectra as low as 27 μmag are obtained for single sites, while the combined data reach 19 μmag, making this the best photometric time series of an ensemble of red giant stars. These data enable us to make the first test of the scaling relations (used to estimate frequency and amplitude) with an homogeneous ensemble of stars. The detected excess power is consistent with the expected signal from stellar oscillations, both in terms of its frequency range and amplitude. However, our results are limited by apparent high levels of non-white noise, which cannot be clearly separated from the stellar signal.</P>
문화 간 차이 속에서 아키비스트의 역할과 임무: 균형된 관계를 모색하며
앤 길리랜드(Gilliland, Anne),윤은하(Younm, Eun-ha) 한국외국어대학교 역사문화연구소 2012 역사문화연구 Vol.43 No.-
기술지향적인 세계화가 국가간의 경계를 허물고, 이념과 사상을 빠르게 이동시켰다. 이에 따라 기록관리도 전 세계적으로 잘 알려진 국제 표준과 잘 알려지지 않은 지역 전통 사이에서 균형을 맞추는 작업이 점차 중요해지고 있다. 이는 상이한 문화 유산과 지역 정체성을 보존하고, 아카이브에 대한 다양한 시각과 국제 참여를 확보하기 위해 반드시 필요하다. 본고는 기록관리 영역에서 이러한 지역간, 국가간, 또는 국제적 균형에 대해 역설하는 주장들을 소개하고, "보편적","자연적" 이라고 지금까지 알려져 있던 아카이브 원칙들이 근거하고 있는 기본가정들에 대해 의문을 제기해본다. 일부 지역에서 만들어진 아카이브 이론들이 검증되지 않은 채 다른 국가나 지역적 환경에서 적용되고 있다는 점에 주목하며, 본고는 기록학 원칙에 대한 비판적 사고를 통해 아카이브 패러다임을 다원화할 것을 주장한다. 이를 위한 몇 가지의 전략들을 논의해보고 기록학 교육을 통해 서로 다른 아카이브의 사고와 가치들에 대한 인식을 확장시킬 것을 제안한다. As technology-facilitated globalization dissolves national boundaries and accelerates the movement of ideas, archival frameworks and activities need to be able to balance internationally-promulgated standards and best practices with salient traditional national and local ideas and practices in order to ensure the preservation of heterogeneous cultural heritage, identity, and perspectives. The paper first lays out some of the circumstances in which an archival institution might find itself needing to consider local, national and international interests and practices in terms of making decisions about collections and services. It then questions the assumption that certain archival ideas are "natural" or "universal," and argues that relevant historically or culturally-based archival concepts and practices sometimes exist in specific national or local contexts that have not always been acknowledged or incorporated into international archival ideas. To illustrate this argument, it describes some historical archives and recordkeeping practices in Korea that are not well known outside the country. The paper concludes with a discussion of some strategic ways to broaden intercultural awareness and incorporate different archival concepts and values through archival education.
Exhaled NO: Determinants and Clinical Application in Children With Allergic Airway Disease
김효빈,Sandrah P. Eckel,김정희,Frank D. Gilliland 대한천식알레르기학회 2016 Allergy, Asthma & Immunology Research Vol.8 No.1
Nitric oxide (NO) is endogenously released in the airways, and the fractional concentration of NO in exhaled breath (FeNO) is now recognized as a surrogate marker of eosinophilic airway inflammation that can be measured using a noninvasive technique suitable for young children. Although FeNO levels are affected by several factors, the most important clinical determinants of increased FeNO levels are atopy, asthma, and allergic rhinitis. In addition, air pollution is an environmental determinant of FeNO that may contribute to the high prevalence of allergic disease. In this review, we discuss the mechanism for airway NO production, methods for measuring FeNO, and determinants of FeNO in children, including host and environmental factors such as air pollution. We also discuss the clinical utility of FeNO in children with asthma and allergic rhinitis and further useful directions using FeNO measurement.
인체에서 분리된 Lactobacillus acidophilus가 생산하는 박테리오신의 선별과 정제
김세헌 ( Se Heon Kim ),김영교 ( Yeong Gyo Kim ),( Gilliland S E ) 한국유가공기술과학회 1997 Journal of Dairy Science and Biotechnology (JMSB) Vol.15 No.1
Lactobacillus acidophilus 223, 606, and NCFM-F among 21 isolated from fecal contents of humans demonstrated inhibitory activity attributed to bacteriocin(s). The bacteriocin(s) were heat stable and nondialyzable proteinous compounds and exhibited narrow inhibitory spectra of activity. Neither hydrogen peroxide nor pH were responsible for inhibitory action. All of the producer strains were resistant to their own bacteriocin(s). The bacteriocin(s) were purified by ammonium sulfate precipitation, gel chromatography and ion exchange chromatography for further characterization. The bacteriocin(s) of human origin exhibited similar characteristics.
Brian Fiani,Rebecca Houston,Imran Siddiqi,Mohammad Arshad,Taylor Reardon,Brandon Gilliland,Cyrus Davati,Athanasios Kondilis 대한척추신경외과학회 2021 Neurospine Vol.18 No.1
Retro-odontoid pseudotumor formation consists of an abnormal growth of granulation tissue typically posterior to the odontoid process, resulting as a manifestation of atlantoaxial instability. This instability can occur as a result of conditions ranging from severe mechanical trauma to metabolic disease or autoimmune conditions such as rheumatoid arthritis. A pseudotumor may impinge on the spinal nerves or even the spinal cord and brainstem, manifesting symptoms from severe neck pain to cervicomedullary compression or myelopathy, and in some cases even sudden death. The objective of this review is to consolidate the findings in published case reports and relevant prior literature reviews regarding the formation of retro-odontoid pseudotumor. We address the pathophysiology involved in acquired and congenital pseudotumor formation, including those associated with rheumatoid arthritis (panni). Additionally, we discuss past and current operative techniques designed to curtail and ultimately regress a retro-odontoid pseudotumor and pannus. Surgical techniques that are addressed include ventral decompression (both transoral and transnasal), dorsal decompression, and indications for posterior instrumentation in pannus formation, particularly in cases that may be sufficiently treated in lieu of an anterior approach. Finally, we will examine the role of external orthoses as both a method of conservative treatment as well as a potential adjunct to the aforementioned surgical procedures.
New perspectives on supercritical methane adsorption in shales and associated thermodynamics
Xu Tang,Nino Ripepi,Sean Rigby,Robert Mokaya,Ellen Gilliland 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.78 No.-
Understanding methane adsorption behavior in shales is fundamental for optimizing shale gasdevelopment as the adsorbed methane is a large portion of the subsurface shale gas resource. However,the adsorption mechanism of supercritical methane in shales and associated thermodynamics are poorlyunderstood because the equation of state of the adsorbed methane is unmeasurable. This work analyzedadsorption equilibria (up to 32 MPa and 393.15 K) using a rigorous framework that can account for nonidealgas properties and accurately extrapolate absolute adsorption uptakes from measured adsorptionisotherms. The framework also allowsy a straightforward calculation of thermodynamic potentialsrelevant to adsorption such as enthalpy and entropy. Modelling results show that methane adsorptionisotherms in shale under different pressures and temperatures are represented by a two dimensionaladsorption isotherm surface. The density of the adsorbed methane in shales depends on temperature andpressure, which is always lower than the liquid methane density but higher than the correspondinggaseous methane density. The temperature-dependent and pressure-dependent characteristics ofadsorbed methane density leads to the corresponding temperature-dependent and pressure-dependentmeasured/absolute adsorption isotherms. The maximum adsorption uptake of shales is independent oftemperature and pressure. The isosteric enthalpy/entropy of adsorption and enthalpy/entropy ofadsorbed methane are found to be temperature- and surface coverage-dependent. These newfindingstherefore not only clarify some historical misunderstandings of methane adsorption in shales forengineering application, but also provide a novel framework for interpreting methane adsorptionbehavior in shales and for determining the associated thermodynamics.