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172篇 您的检索式:作者名="Seco"
    题名 作者 年代 出处 被引量
1典型树种挥发性有机物(VOCs)排放成分谱及排放特征显示文摘为研究典型树种的挥发性有机物(VOCs)排放特征,并获得基础排放速率,应用动态封闭式采样系统对毛果杨、北美枫香和马尾松的排放进行了实验室测量.利用热脱附-气相色谱-飞行质谱仪对排放样品进行定性和定量分析,包括异戊二烯、单萜烯、倍半萜烯、烷烃和烯烃,计算获得各树种VOCs排放速率及其排放谱特征.研究表明:毛果杨、北美枫香和马尾松的总VOCs排放速率分别为19.51、17.19和0.67μg/(g·h).毛果杨的异戊二烯排放最高(18.51μg/(g.h)),占其总排放的94.86%;马尾松排放的异戊二烯仅占4.03%,单萜烯贡献最高,为49.09%;北美枫香的单萜烯排放速率最高,为0.84μg/(g.h);3个树种排放的倍半萜烯占各自VOCs总排放的比重均较小(<1.5%);各树种的烷烃排放强度高于倍半萜烯,部分化合物甚至高于异戊二烯和单萜烯的排放强度.反式-β-罗勒烯是毛果杨排放最多的单萜烯化合物,占其单萜烯总排放的99.84%;北美枫香排放的单萜烯主要以香桧烯和β-蒎烯为主;马尾松以α-蒎烯、香桧烯和β-蒎烯为主.石竹烯、葎草烯、δ-杜松烯和β-愈创木烯是主要的倍半萜烯物种.烷烃排放主要为C4和C5的化合物,特别是异丁烷和正丁烷;各树种排放的烯烃中,1-丁烯排放占比最高.李玲玉 Alex BGuenther 顾达萨 Roger Seco Sanjeevi Nagalingam 2019中国环境科学2019,39,12:10
2短期干旱胁迫对马尾松排放挥发性有机物的影响显示文摘为探究干旱环境对BVOCs排放的影响,应用动态封闭式采样系统和热脱附-气相色谱-飞行质谱仪,对短期干旱胁迫作用下马尾松的BVOCs排放进行了实验室测量,定量分析BVOCs排放速率和排放组成的变化.结果表明,干旱胁迫时异戊二烯的排放受到抑制,排放速率降低约50%;单萜烯和倍半萜烯的排放水平增强,排放速率分别为137.85和0.98μg/(m^2·h),是未受胁迫时的2.9和2.0倍.除反式-α-香柠檬烯外,干旱胁迫促进各单萜烯和倍半萜烯化合物的排放,是未受胁迫时的1.3~42.4倍,其中3-蒈烯排放的响应最敏感,α-葑烯、α-水芹烯和石竹烯的响应最弱.干旱胁迫时单萜烯和倍半萜烯的排放组成有所变化,但主导的化合物种类不变,单萜烯以α-蒎烯、香桧烯和β-蒎烯为主,占比分别为48%、17%和17%;倍半萜烯以石竹烯和长叶烯为主,占比分别为57%和34%.李玲玉 Alex B.Guenther 顾达萨 Roger Seco Sanjeevi Nagalingam 2020中国环境科学2020,40,9:4
3Efficiency of white lupin in the removal of mercury from contaminated soils: Soil and hydroponic experiments显示文摘This study examined the ability of the white lupin to remove mercury (Hg) from a hydroponic system (Hg concentrations 0, 1.25, 2.5, 5 and 10 μmol/L) and from soil in pots and lysimeters (total Hg concentration (19.2 ± 1.9) mg/kg availability 0.07%, and (28.9 ± 0.4) mg/kg availability 0.09%, respectively), and investigated the accumulation and distribution of Hg in different parts of the plant. White lupin roots efficiently took up Hg, but its translocation to the harvestable parts of the plant was low. The Hg concentration in the seeds posed no risk to human health according to the recommendations of the World Health Organization, but the shoots should not be used as fodder for livestock, at least when unmixed with other fodder crops. The accumulation of Hg in the hydroponically-grown plants was linear over the concentration range tested. The amount of Hg retained in the roots, relative to the shoots, was almost constant irrespective of Hg dose (90%). In the soil experiments, Hg accumulation increased with exposure time and was the greater in the lysimeter than in the pot experiments. Although Hg removal was the greater in the hydroponic system, revealing the potential of the white lupin to extract Hg, bioaccumulation was the greatest in the lysimeter-grown plants; the latter system more likely reflects the true behaviour of white lupin in the field when Hg availability is a factor that limits Hg removal. The present results suggest that the white lupin could be used in long-term soil reclamation strategies that include the goal of profitable land use in Hg-polluted areas.Pilar Zornoza Rocío Milln M. Jos Sierra Almudena Seco Elvira Esteban 2010Journal of Environmental Sciences2010,22,3:4
4The use of non-conventional additives in Marls stabilization显示文摘A. Seco F. Ramírez L. Miqueleiz B. García E. Prieto 2011Applied Clay Science2011,,4:2
5Retroperitoneal Castleman's disease显示文摘SECO J L VELASCO F MANUEL J S 1992Surgery1992,112,5:1
6Communlty-acquired pneumonia in the elderly:prognostic factors显示文摘Clemente MG Budino TG Seco GA 2002Arch Bronconeumol2002,38,2:1
7Parametrical optimisation of ultrasonic motors显示文摘Pons J L Rodriguez H Fernandez J F Villegas M Seco F 2003Sensors and Actuators A2003,107,:1
8Accurate pedestrian indoor navigation by tightly coupling foot-mounted IMU and RFID measurements 显示文摘JIMENEZ R A R SECO G F PRIETO H I C 2012IEEE Transactions on Instrumentation and Measurement2012,61,1:1
9A study of the leachate toxicity of metal-containing solid wastes using Daphnia magna 显示文摘Seco J Fernandez-Pereira C Vale J 2003Eeotoxicology and Environmental Safety2003,56,3:1
10Investigation of the influence of rail pad stiffness on rail corrugation on a transit system 显示文摘Egana J I Vinolas J Seco M 2006Wear2006,,261:1
11显示文摘LATYPOV S K SECO J M QUINOA E 1995J Org Chem1995,60,3:1
12Effect of growth conditions on wood density of Spanish Pinus nigra显示文摘OLIVA A G MERINO V B SECO J I F G 2006Wood Science Technology2006,40,:1
13Rain pattern analysis and forecast model based on GPS estimated atmospheric water vapor content 显示文摘SECO A RAMiREZ F SERNA E 2012Atmospheric Environment2012,49,:1
14A generic nested - RT - PCR followed by sequencing for detection and identification of members of the alphavirus genus显示文摘Snchez - seco MP Rosario D Quiroz E 2001J Virol Methods2001,95,12:1
15Optimum design and operation of primary sludge fermentation schemes for volatile fatty acids production显示文摘Chanona J Ribes J Seco A 0,,01:1
16Epitope Mapping of the Brueella melitensis BP26 Immuno- genie Protein : Usefulness for Diagnosis of Sheep Brueellosist显示文摘Patrieia Seco Mediavilla Jean-Michel Verger Maggy Grayon 2003Clin Diagn Lab Immunol2003,10,4:1
17A methodology for sequencing batch reactor identification with artificial neural networks: A case study显示文摘D. Aguado J. Ribes T. Montoya J. Ferrer A. Seco 2008Computers and Chemical Engineering2008,,2:1
18Indoor pedestrian navigation using an INS/EKF framework for yaw drift reduction and a foot-mounted IMU显示文摘Jiménez A R Seco F Prieto J C 2010Institute of Electrical&Electronics Engineers2010,,:1
19Estimating the 3D-position from time delay data of US-waves: experimental analysis and a new processing algorithm 显示文摘Martin J M Jimenez A R Seco F 2003Sensors and Actuators2003,101,:1
20Densification of hybrid silica-titania sol gel films studied by ellipsometry and FTIR 显示文摘SECO A M ALMEIDA R M 2000Master Sci Eng B2000,76,:1
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