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222篇 您的检索式:作者名="Griffis"
    题名 作者 年代 出处 被引量
1素食人群尿液^1H NMR代谢轮廓的多因素方差分析显示文摘结合方差分析(ANOVA)和偏最小二乘法判别分析(PLS-DA)两种分析技术,对素食和普食人群的尿液1H NMR谱进行分析.利用ANOVA方法将数据矩阵分解为几个独立因素矩阵,滤除干扰因素后,再利用PLS-DA对单因素数据进行建模分析.实验结果表明,ANOVA/PLS-DA方法可以有效地减少饮食因素和性别因素之间的相互影响,使分析结果更具有生物学意义.董继扬 邓伶莉 CHENG Kian-Kai GRIFFI NJulian L. 陈忠 2011高等学校化学学报2011,32,12:4
2通量及其不确定性对农业区高塔CO_2浓度模拟的影响显示文摘利用WRF-STILT模型模拟玉米种植区生长季(6-9月)小时CO_2浓度,并基于美国最大农业种植区‘玉米带’100m高塔CO_2浓度观测数据,对WRF-STILT模型的模拟能力及CO_2通量的不确定性对模拟结果的影响进行分析。结果表明:(1)WRF-STILT能够模拟高塔观测的CO_2浓度日变化特征,模拟值与观测值的均方根误差为13.70mmol×mol^(-1),模拟结果偏高7.26mmol×mol^(-1)。(2)EDGAR和Carbon Tracker两种典型化石燃料的CO_2通量,其区域平均值相差<6%,但两者对CO_2浓度增加值的模拟结果相差约10%;(3)CO_2通量空间分辨率的差异会导致模拟结果产生偏差,使用区域边长为1o的EDGAR化石燃料CO_2通量模拟的浓度贡献值仅为0.1o的0.4倍,且空间分辨率越低,模拟误差越大;(4)白天和夜晚Carbon Tracker模拟的植被生态系统净交换数据是高塔涡度相关方法观测结果的2.26和1.56倍,下垫面分类的误差以及相应的通量模拟误差使模拟的CO_2浓度贡献出现12mmol×mol^(-1)的差异,这是模拟结果偏高7.26mmol×mol^(-1)的潜在误差来源。研究认为,WRF-STILT模型和高空间及时间分辨率的CO_2通量能够较好模拟出农业区生长季的CO_2强日变化特征,CO_2通量的误差是模拟结果误差的主要来源,研究结果表明该方法具有评估和优化通量的巨大潜力。胡诚 张弥 肖薇 王咏薇 王伟 Tim Griffis 刘寿东 李旭辉 2017中国农业气象2017,38,8:3
3Endoscopic Ultrasound-guided drainage of an abdominal fluid collection following Whipple's resection显示文摘Percutaneous aspiration and drainage of post-operative abdominal fluid collections is a well established standard technique. However,some fluid collections are not amenable to percutaneous drainage either due to location or the presence of surrounding visceral structures. Endoscopic Ultrasound (EUS) has been widely used for the drainage of pancreatitis-related abdominal fluid collections. However,there are no reports on the use of this technique in the post-operative setting. We report a case where the EUS-guided technique was used to drain a percutaneously inaccessible post-operative collection which had developed after Whipple's resection.Asif Jah Neville Jamieson Emmanuel Huguet William Griffi ths Nicholas Carroll Raaj Praseedom 2008World Journal of Gastroenterology2008,14,44:3
4基于WRF-STILT模型对高塔CO_2浓度的模拟研究显示文摘利用下垫面均一的美国最大农业种植区已有高塔CO_2浓度观测资料,结合EDGAR的13种不同类型人为化石源CO_2通量和Carbon Tracker的植被NEE数据,评估了WRF-STILT拉格朗日大气传输模型的模拟能力.结果表明,WRF-STILT模型能够很好地模拟出高塔100m处观测到的CO_2浓度强季节和日变化特征,全年模拟的大气CO_2浓度的均方根误差为10.6×10^(-6),相关系数为0.44(n=7784,P<0.001);生长季(6~9月)观测和模拟的浓度增加值线性拟合斜率为1.08(R=0.52,P<0.001),说明一致性高;截距为7.26×10^(-6)则反映了使用人为化石燃烧的CO_2通量的高估或者植被NEE的低估.2008年全年高塔观测到的CO_2浓度增加值为4.83×10^(-6),小于模拟得到化石燃烧贡献的增加量6.61×10^(-6)与植被NEE的贡献值3.23×10^(-6)之和.其中原油生产和提炼以及能源工业分别贡献了化石燃料燃烧总量的2.55×10^(-6)(38.6%)和1.43×10^(-6)(21.6%).而对生长季观测到的强CO_2浓度日变化特征模拟结果显示,其模拟的平均日振幅为24.30×10^(-6);生物质燃烧产生的CO_2浓度贡献值为0.06×10^(-6),相对于植被NEE和化石源的贡献,可以被忽略.该方法可为将来应用高塔衡量气体浓度观测来反演中国区域尺度的温室气体通量提供参考.胡诚 张弥 肖薇 王咏薇 王伟 Tim Griffis 刘寿东 李旭辉 2017中国环境科学2017,37,7:2
5Some design considerations for composite- frame structures 显示文摘GRIFFIS L G 1986AISC Engineering Journal1986,23,2:1
6Eliminating extravasation events:a multidisciplinary approach显示文摘Coyle C E Griffie J Czaplewski L M 2014J Infus Nurs2014,37,3:1
7Seasonal variationand portioning of ecosystem respiration in a southern boreal aspen forest显示文摘Griffis T J Black T A Gaumont-Guay D 2004Agriculture and Meteorology2004,125,:1
8A forward displacement analysis of a class of stewart platforms 显示文摘Griffis M Duffy J 1989Journal of Robotic Systems1989,6,6:1
9Surface structure effects on close-range reflectance a function of soil organicmatter content显示文摘Gurisaulis E R Kocher M Fs Griffis C L 1991Tranctions of the ASAE1991,34,2:1
10Response of bushbean exposed to acid rain mist显示文摘Hindawi I J Rea J A Griffis W L 1980American Journalof Botany1980,67,2:1
11Interdigitated Microelectrode (IME) Impedance Sensor for the Detection of Viable Salmonella Typhimurium显示文摘Yang L Li Y Griffis C 2004Biosens Bioelectron2004,19,:1
12Influence of temperature and drought on seasonal and interarmual variation of soi,1 bole and ecosystem respiration in a boreal aspen stand显示文摘GAUMONT G D NDREW B T GRIFFIS T J 2006Agricultural and Forest Meteorology2006,40,:1
13The effects of triangle inequality on the vehicle routing problem显示文摘Fleming C L Griffis S E Bell J E 2013European Journal of Operational Research2013,224,1:1
14Interdigitated microelectrode (IME) impedance sensor for the detection of viable Salmonella typhimurium显示文摘Yang L J Li Y B Griffis C L 2004Biosensors and Bioelectronics2004,19,:1
15Northern Canadian wetlands: net ecosystem CO2 exchange and climatic change 显示文摘Waddington J M Griffis T J Rouse W R 1998Climate Change1998,40,:1
16Redundant Grasps, Redundant Manipulators and Their Dual Relationship显示文摘Kerr D R Griffis M Sanger D J 1992Journal of Robotics System1992,9,7:1
17Global Stiffness Modeling of A Class of Simple Compliant Couplings显示文摘Griffis M Duffy J 1993Mechanism and Machine Theory1993,28,2:1
18Supply chain capital the impact of structural and relational linkages on firm exe- cution and innovation显示文摘AUTRY C W GRIFFIS S E 2008Journal of Business Logistics2008,29,1:1
19Supply chain capital: the impact of structural and relational linkages on firm execution and inno- vation 显示文摘Autry Ch W Griffis S 2008Journal of Business Logistics2008,29,1:1
20Some design considerations for compositeframes structures显示文摘Griffis L G 1986AISC Engineering Journal1986,23,2:1
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