搜索筛选:
搜索耗时0.9394秒,为你在为你在102,285,761篇论文里面共找到 1,000 篇相符的论文内容
发布年度:
[期刊论文] 作者：Martín López-Corredoira,Carlos,
来源：天文和天体物理学研究 年份：2004
There are extremely luminous quasi stellar objects (QSOs) at high redshift which are absent at low redshift.The lower luminosities at low redshifts can be under...
[期刊论文] 作者：朱安女,ZHU An'nü,
来源：大理学院学报 年份：2004
云南大理是白族主要聚居区,地处滇西交通和南方丝绸之路的枢纽,白族古代金石文献形成了独特的地域文化特点.一是尽情书写“苍洱境”淳美自然山水家园的地域本色；二是持续不断...
[期刊论文] 作者：Suhas Chakravarty,Varun Jain,N,
来源：电子产品世界 年份：2004
本文提出一个完整的基于ZigBee的驾驶辅助系统解决方案,该方案充分利用了具有低成本、低功耗和安全无线网络功能等特性的ZigBee协议....
[期刊论文] 作者：RANJANE Poonam N,GANDHI Santos,
来源：色谱 年份：2004
A simple, accurate and sensitive reversed-phase high performance liquid chromatographic (RP-HPLC) method for the simultaneous determination of cefuroxime axetil...
[期刊论文] 作者：A Ebadian,N Ghobadipour,I Niko,
来源：分析、理论与应用（英文版） 年份：2004
Let G be an Abelian group and letρ:G×G→[0,∞) be a metric on G. Let E be a normed space. We prove that under some conditions if f:G→E is an odd function and...
[期刊论文] 作者：SHEN YongMing,ZHENG YongHong,N,
来源：中国科学E辑 年份：2004
The scattering and radiations of linear oblique waves by multiple long horizontal circular cylinders submerged in water of finite depth are investigated using t...
[期刊论文] 作者：Fernando Gomollón,Santiago Gar,
来源：世界胃肠病学杂志（英文版） 年份：2004
Azathioprine is Currently the key drug in the maintenance treatment of inflammatory bowel diseases. However, there are still some practical issues to be resolve...
[期刊论文] 作者：DAZ Marlén Pérez,
来源：浙江大学学报B（英文版） 年份：2004
A discriminant method for optimizing activity in nuclear medicine studies is validated by comparison with ROC performed with a cardiac phantom. Three different...
[期刊论文] 作者：Jonathan M Buscaglia,Anthony N,
来源：世界胃肠病学杂志（英文版） 年份：2004
Pancreatic sphincterotomy serves as the cornerstone of endoscopic therapy of the pancreas. Historically,its indications have been less well-defined than those o...
Alpha -tocopherol supplementation on chromium toxicity : a study on rat liver and kidney cell membra
[期刊论文] 作者：Sankar Kumar Dey,Prasunpriya N,
来源：环境科学学报 年份：2004
Membrane damage is one of the important consequence of chromium, an environmental toxicant, to produce cytotoxicity. α-tocopherol, a membrane protectant can be...
[期刊论文] 作者：Jamilé Wakim-Fleming,Nizar N Z,
来源：世界胃肠病学杂志 年份：2004
AIM: To study the small bowel (SB) mucosa on biopsy in cirrhotic patients with portal hypertension and in non-cirrhotic controls and grade findings according to...
[期刊论文] 作者：ZHANG Chen-guang,LUO Ru-zhuo,N,
来源：中国癌症研究（英文版） 年份：2004
Rare giant condyloma acuminatum (CA) reported by this paper is an interesting unusual case in China. Giant CA is a tumor that primarily affects the genital and...
Long-Term Effect of Fertilizer and Rice Straw on Mineral Composition and Potassium Adsorption in a R
[期刊论文] 作者：LIAO Yu-lin,ZHENG Sheng-xian,N,
来源：农业科学学报（英文版） 年份：2004
Increasing K+adsorption can be an effective alternative in building an available K pool in soils to optimize crop recovery and minimize losses into the environm...
[期刊论文] 作者：Hassan GHAHARI,Reijo JUSSILA,N,
来源：武夷科学 年份：2004
本文调查鉴定了伊朗Markazi省的姬蜂科昆虫种类4亚科13属15种，其中Glypta cylindrator（ Fabrici-us）和 Ichneumon terminatorius Gravenhorst为伊朗分布新纪录。...
[期刊论文] 作者：Kikuchi A,Nakagoshi N,Onda Y,
来源：环境科学学报 年份：2004
The detailed groundwater flow and water chemistry to illustrate landscape structure of the infertile peatless mire by using piezometersand groundwater wells wer...
Effects of cold rolling on the microstructure and mechanical properties of Fe-Ni-Mn-Mo-Ti-Cr maragin
[期刊论文] 作者：Abbas Mahmudi,Syamak Hossein N,
来源：矿物冶金与材料学报 年份：2004
Effects of cold rolling on the microstructure and mechanical properties of Fe-Ni-Mn-Mo-Ti-Cr maraging steels were studied.To investigate the microstructure and...
Effects of Heat Treatment on Hardness and Dry Wear Properties of a Semi-Solid Processed Fe-27 wt pct
[期刊论文] 作者：Chairuangsri,N,
来源：材料科学技术学报（英文版） 年份：2004
Effects of heat treatments on hardness and dry wear properties of a semi-solid processed Fe-26.96 wt pct Cr- 2.91 wt pct C cast iron were studied. Heat treatmen...
[期刊论文] 作者：PALANIRADJA,N,
来源：中国有色金属学报（英文版） 年份：2004
研究了LM25Al/SiCp复合材料的铣削加工特征.将获得的相关试验数据采用响应面方法建立了一个数学模型来描述各种加工参数对后刀面磨损率的影响.采用标准的响应面方法来设计实...
[期刊论文] 作者：Vijayshankar Asokan,Dorte Nφrg,
来源：新型炭材料 年份：2004
以二茂铁和二茂镍为催化剂,采用化学气相沉积法在1000℃下,炭黑( CB )转变为炭纳米微球和碳管。利用XRD, SEM, TEM, HR_TEM 和 Raman等对样品进行表征。结果表明,二茂铁和二...
Electrochemical behavior of 304 stainless steel with electrodeposited niobium as PEMFC bipolar plate
[期刊论文] 作者：Cheng-hao Liang,Cai-hong Cao,N,
来源：矿物冶金与材料学报 年份：2004
In order to enhance the corrosion resistance of 304 stainless steel,niobium was electrodeposited on its surface in air- and water-stable ionic liquids.The elect...
相关搜索：
