Inter- and intraindividual correlations of background abundances of 2H, 18O and 17O in human urine and implications for DLW measurements科学家应用LGR同位素分析仪测定人体尿液中的2H,18O和17O丰度间的相互作用对DLW测量方法的影响E S F Berman, E L Melanson, T Swibas, S P Snaith and J R SpeakmanBackground/Objectives:The method of choice for measuring total energy expenditure in free-living individuals is the doubly labeled water (DLW) method. This experiment examined the behavior of natural background isotope abundance fluctuations within and between individuals over time to assess possible methods of accounting for varia...
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2015
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科学家应用Campbell CPEC200闭路涡动相关系统测量森林碳封存Canada: Forest Carbon SequestrationCampbell Scientific CPEC200 monitors eddy-covariance fluxes in British Columbia forest文章下载地址：79canada-vancouver-island--CPEC200.pdf4da92e4cbee3e5c7273825cef11d6136.pdf(2.84 MB)
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2015
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Field Spectroscopy in the VNIR-SWIR Region to Discriminate between Mediterranean Native Plants and Exotic-Invasive Shrubs Based on Leaf Tannin Content基于可见光近红外（VNIR）和短波红外（SWIR），科学家应用ASD地物光谱仪测量叶片单宁的含量，从而区分地中海附近海岸的本土植物和外来入侵灌木。Authors:Jan Rudolf Karl Lehmann, André Große-Stoltenberg, Meike Römer and Jens OldelandAbstract:The invasive shrub, Acacia longifolia, native to southeastern Australia, has a negative impact on vegetation and ecosystem functioning in Portuguese dune ecosystems. In order to spectrally discriminate A. longifoliafrom other non-native and native species,...
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2015
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科学家应用LGR氨气分析仪快速原位机载测量空气中氨气的含量Fast in situ Airborne Measurement of AmmoniaUsing a Mid-Infrared Off-Axis ICOS Spectrometer科学家应用LGR氨气分析仪快速原位机载测量空气中氨气的含量，这可以帮助我们更好的分析大气的成分和气溶胶的组成，具有深远的意义。J. Brian Leen,†,* Xiao-Ying Yu,‡,* Manish Gupta,† Douglas S. Baer,† John M. Hubbe,‡ Celine D.Kluzek, ‡ Jason M. Tomlinson,‡ and Mike R. Hubbell II‡†Los Gatos Research Inc., 67 E. Evelyn Ave, Suite 3, Mountain View, CA 94041‡Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99352ABSTRACT:A new ammonia (NH3) analyzer was developed based on off-axis integrated cavity output spectroscopy...
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2015
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The relative role of soil type and tree cover on water storageand transmission in northern headwater catchments科学家应用LGR液态水同位素分析仪在北部水源集中区域监测土壤类型与植被覆盖类型对水的存储和传输的影响Josie Geris,1*Doerthe Tetzlaff,1Jeffrey McDonnell1,2and Chris Soulsby11Northern Rivers Institute, School of Geosciences, University of Aberdeen, Scotland, UK2Global Institute for Water Security, National Hydrology Research Centre, University of Saskatchewan, Saskatoon, CanadaAbstract:Soil water storage and stable isotopes dynamics were investigated in dominant soil–vegetation assemblages of a wet northern headwater catchment (3.2 ...
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2015
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科学家应用LGR液态水同位素分析仪做同位素示踪研究，研究证明，重碳酸盐的修正可以提高被铀污染的含水层的生物还原修复能力。Bicarbonate impact on U(VI) bioreductionin a shallow alluvial aquiferPhilip E. Longa, Kenneth H. Williamsa, James A. Davisa, Patricia M. Foxa, Michael J. Wilkinsb,1,Steven B. Yabusakib, Yilin Fangb, Scott R. Waichlerb, Elena S.F. Bermanc, Manish Guptac, Darrell P. Chandlerd, Chris Murrayb, Aaron D. Peacocke, Ludovic Giloteauxf, Kim M. Handleyg,2, Derek R. Lovleyh,Jillian F. BanfieldgaLawrence Berkeley National Laboratory, Berkeley, CA 94720, USAbPacific Northwe...
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2015
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Direct Analysis of δ2H and δ18O in Natural and Enriched Human Urine Using Laser-Based, Off-Axis Integrated Cavity Output Spectroscopy应用LGR液态水稳定同位素分析仪测量尿液中的氢氧同位素Elena S. F. Berman*†, Susan L. Fortson†, Steven P. Snaith†, Manish Gupta†, Douglas S. Baer†,Isabelle Chery‡, Stephane Blanc‡, Edward L. Melanson§, Peter J. Thomson⊥, and John R. Speakman⊥∥†Los Gatos Research, 67 East Evelyn Ave, Suite 3, Mountain View California 94043, United States‡Department of Ecology, Physiology and Ethology, IPHC-DEPE, Université de Strasbourg, 23 rue Becquerel...
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2015
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LGR的专利技术—利用腔增强激光吸收光谱法，记录高吸收光谱，能够精确的测量葡萄酒中的同位素比值。LGR拥有专业的光谱污染标识软件（软件测量植物水的精确数据在权威期刊上发表过），这使得仪器可以测量葡萄酒中的甲醇和乙醇污染物，从而得到可靠的同位素比值数据。Laser-based measurements of 18O/16O stable isotope ratios (δ18O) in wine samples应用LGR液态水稳定同位素分析仪测量葡萄酒中的稳定同位素比值18O/16O和δ18OManish Gupta1 J Brian Leen1 Elena Simone Franklin Berman1 Aldo Ciambotti21Los Gatos Research, Mountain View, CA, USA;2Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Centro di Ricerca per l’Enologia, Asti, ItalyAbstract:Wine counterfeiting is an international, multi-billion dollar issu...
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2015
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LGR 二氧化碳同位素分析仪最新应用：应用LGR二氧化碳同位素分析仪，通过测定肠易激综合症患者的呼出气体中的13CO2和12CO2的同位素分子比率，可以对患者体内小肠细菌过度生长情况做出正确诊断Diagnosis of small intestinal bacterial overgrowth in irritable bowel syndrome patients using high-precision stable 13CO2/12CO2isotope ratios in exhaled breathGourab D. Banik,aAbhijit Maity,aSuman Som,aChiranjit Ghosh,aSunil B. Daschakraborty,bSujit Chaudhuri,bShibendu Ghoshcand Manik Pradhan*adHydrogen breath tests (HBT) are widely used for the diagnosis of small intestinal bacterial overgrowth (SIBO) in patients with irritable bowel syndrome (IBS). However, the conclusions drawn f...
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2015
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Short-term effects of thinning, clear-cutting and stump harvesting on methane exchange in a boreal forest关于人类对北方森林的疏伐、滥砍滥伐和树桩采伐对甲烷交换的短期影响E. Sundqvist1, P. Vestin1, P. Crill2, T. Persson3, and A. Lindroth11Department of Physical Geography and Ecosystem Science, Lund University, Sweden2Department of Geological Sciences, Stockholm University, Sweden3Department of Ecology, Swedish University of Agricultural Sciences, Sweden原文链接：http://www.biogeosciences-discuss.net/11/4637/2014/bgd-11-4637-2014.pdf
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2015
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