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[期刊论文] 作者：Lucie Sirieix,Paul R. Kledal,T,
来源：世界农业 年份：2004
本文介绍了中国上海市消费者对于有机食品取舍的定性研究。准确来说，本文涉及的消费者权衡的食品介于3种类型之间，即本地生产的有机食品，本地生产与常规生产的食品，进口有机食品......
[期刊论文] 作者：Sun Qi,Michael R. Sestrick,Yos,
来源：仪器仪表学报 年份：2004
Silica is a versatile pigment for ink jet media. Micronized silica gel is the worldwide standard for high performance matte ink jet media. For glossy ink jet me...
[期刊论文] 作者：Pande,R. C. Dhiman,
来源：林业研究（英文版） 年份：2004
The performance and variability patterns in the wood ele- ments dimensions, specific gravity and growth parameters namely ramet height and GBH were evaluated in...
[期刊论文] 作者：Chandler,Norman R. We,
来源：国外城市规划 年份：2004
为了应对国际集装箱运输不断增长的需要,芝加哥地区作为美国最重要的货物运输枢纽,急需增加联合运输终端容量.本文介绍了"货运导向发展"(FOD)中评估、对比和鉴定潜在场地的三...
[期刊论文] 作者：BAYATI M R.,JANGHORBAN K.,SHAR,
来源：电镀与涂饰 年份：2004
黑铬作为最具吸引力的太阳能选择性吸收材料之一,已得到实验证实并用于太阳能收集器.本文评价了黑铬太阳能选择性吸收器的热稳定性和耐蚀性.采用三价铬镀液,在铜基体上电沉积...
[期刊论文] 作者：R. Gockeln,S. Riegert,F. Sista,
来源：眼视光学杂志 年份：2004
目的:阐明多焦视诱发电位成分是如何从多通道双极记录中得出和进行地形学分析的.并研究不同的视皮层记录位置对多焦视诱发电位的波形、潜伏期(ms)和振幅(mV)的影响.方法:采用...
[期刊论文] 作者：Dhouib,R. Hbaied,F.Chaari,M,
来源：传动技术 年份：2004
本文为研究其自由振动特性而推荐了一个复式行星齿轮传动(CPGT)的平面模型.该CPGT的各个元件(太阳轮、行星架、齿圈1、齿圈2和一些行星齿轮)有二个移动和一个转动.啮合中轮齿...
[期刊论文] 作者：ZHANG Juan,Nilda R. BURGOS,MA,
来源：水稻科学（英文版） 年份：2004
Microsatellite markers and morphological charactedstics were used to explore the genetic diversity and possible origin of weedy dce in Taizhou City, Jiangsu Pro...
[期刊论文] 作者：R. Ladely,
来源：国外畜牧学-猪与禽 年份：2004
磷酸泰乐菌素是一种以提高动物生长为目的、被批准能以亚治疗剂量在肉鸡饲料中使用的抗菌药物,而红霉素通常是用来治疗人弯曲杆菌病的首选药物,这两种药物均属于大环内酯类药...
[期刊论文] 作者：Ashley Hill,Susan R. Hill,
来源：中国实用乡村医生杂志 年份：2004
对治疗妇女绝经期症状的激素及其替代品进行了相应概括性分析....
Variations in total organic carbon and grain size distribution in ephemeral river sediments in weste
[期刊论文] 作者：R. K.RISHNA,
来源：国际泥沙研究（英文版） 年份：2004
Total organic carbon (TOC) and grain size distribution (sand,silt,and clay) in the ephemeral Mahi River (western India) sediments were measured to look at their...
An Unusual, Three-Dimensionally Preserved, Large Hadrosauriform Pes Track from “Mid”-Cretaceous Jiag
[期刊论文] 作者：XING Lida,Phil R. BELL,Jerald,
来源：地质学报（英文版） 年份：2004
Three-dimensional tracks provide unique insights into the locomotor mechanics of their track makers.An isolated,large hadrosauriform print attributable to Carir...
[期刊论文] 作者：R. Diogo,ZHANG Hua,
来源：西南交通大学学报（英文版） 年份：2004
Three known designs for parking, frontal, angled and parallel, were presented. Aircrafts at aprons can be parked either by towing equipment (push-back) or by it...
[期刊论文] 作者：R. HAOUALA,S. HAWALA,A. EL-AYE,
来源：环境科学学报 年份：2004
Aqueous extracts from various plant parts of fenugreek (3%) (aerial parts: leaves and stems (LS), roots (R), ground seeds (GS) and not ground seeds (NGS)) and p...
[期刊论文] 作者：Baozhu Guo,Zhi-Yuan Chen,R. De,
来源：植物学报（英文版） 年份：2004
Throughout the world, aflatoxin contamination is considered one of the most serious food safety issues concerning health. Chronic problems with preharvest aflat...
[期刊论文] 作者：SUN Dan-Feng,LI Hong,R. DAWSON,
来源：土壤圈（意译名） 年份：2004
The Grain-for-Green Policy in China could not only improve Chinas ecological quality, but also influence grain supplies for a short term. Based on data from the...
Effect of poly(vinyl pyrrolidone) on the morphology and physical properties of poly(vinyl alcohol)/s
[期刊论文] 作者：Masud R. M,
来源：自然科学进展（英文版） 年份：2004
Nanocomposites of poly(vinyl alcohol) (PVA), poly(vinyl pyrrolidone) (PVP) and sodium montmorillonite (NatMMT) were prepared by solution mixing and then cast in...
Drag Reduction in a Swimming Humboldt Penguin, Spheniscus Humboldti, when the Boundary Layer is Turb
[期刊论文] 作者：Alex R. Parfitt,Julian F.V. Vi,
来源：仿生工程学报（英文版） 年份：2004
An area of protruding feathers found around the beak of many penguin species is thought to induce a turbulent boundary layer whilst swimming. Hydrodynamic tests...
An Analytical Solution for One-Dimensional Water Infiltration and Redistribution in Unsaturated Soil
[期刊论文] 作者：WANG Quan-Jiu,R. HORTON,FAN Ju,
来源：土壤圈（意译名） 年份：2004
Soil infiltration and redistribution are important processes in field water cycle, and it is necessary to develop a simple model to describe the processes. In t...
[期刊论文] 作者：GAN Lei,PENG Xin-Hua,S.PETH,R.,
来源：土壤圈（意译名） 年份：2004
In the past few decades,the increase in grazing intensity has led to soil degradation and desertification in Inner Mongolia grassland,China,due to population gr...
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