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在深空激光通信中,PPM(Pu1se Position Modulation)调制方式可以在给定的光平均功率下,用较小的激光脉冲重复频率达到很高的数据传......
烧结Nd-Fe-B磁体属于脆性材料,在加工、使用过程中容易掉边掉角,甚至开裂。烧结Nd-Fe-B磁体的力学性能是其综合性能的一个重要指标......
A robustified residual autocorrelation is defined based on L<sub>1</sub>-regression. Under very general conditions,the a......
Establishing a China-Africa Development Fund(CADFund) to encourage andsupport Chinese enterprises to invest in Africa wa......
Influence of the zero dispersion wavelength fluctuation on the gain and noise performance in dual-pu
Because of the zero dispersion wavelength (ZDWL) random fluctuations, the gain and noise figures deteriorate in optical ......
Increased serum and ascitic fluid levels of soluble tumor necrosis factor-p55 in hepatocellular carc
Objective: To explore the levels of serum and ascitic fluid soluble tumor necrosis factor receptor-p55 (sTNFR-p55) and ......
Tl is a dispersed element and it seldom occurs in the form of independent minerals. The world annual production of Tl is......
目的通过检测支气管哮喘（简称哮喘）、慢性阻塞性肺疾病（COPD）及哮喘-COPD重叠征（ACOS）患者血清总IgE、呼出气一氧化氮（FeNO）及外周血嗜酸性......
Scutellaria barbate extract induces apoptosis of hepatoma H22 cells via the mitochondrial pathway in
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Driving northeast from the downtown of Lhatse County,the car sped further towards the north bank of the Yarlung Zangpo R......
THE 100,000-word Platform for Action adopted on September 15, 1995, at the UN Fourth World Conference on Women in Beiji......
THE ROLLING DEVELOPMENT MODEL OF ECOLOGICAL ECONOMY COMBINED WATER CONSERVANCY CONSTRUCTION WITH SCH
On the basis of classification of geographical properties a rolling develop-ment goal programming model is formulated i......
AIM: To investigate if ischemia/reperfusion (I/R) injury in aged liver could be alleviated by heme oxygenase-1 (HO-1). M......
作者发现发色底物ＢＯＣ－Ｌｅｕ－Ｓｅｒ－Ｔｈｒ－Ａｒｇ－ｐＮＡ对激肽释放酶具有良好的敏感性和特异性。它受激肽释放酶作用的Ｋｍ和Ｖｍａｘ。分别为２３５ｐｍｏｌ·Ｌ－１和３３７ｎｍｏｌ（ＰＮＡ）·Ｓ－１·Ｕ－１（ｋＫ）；抑制试验显示，该底物对ＡＴ－Ⅲ和ＬＢＴＩ不敏......
THE GLOBAL DEFORMATION AND LOCAL DAMAGE ANALYSIS OF FILLED METALLIC CYLINDRICAL SHELLS IMPACTED BY M
A group of theoretical models has been developed for analyzing transient dynamic re-sponse to filled metallic cylindric......
尿激酶原， 即单链尿激酶（ｓｃｕＰＡ）是双链尿激酶（ｔｃｕＰＡ） 的前体， 属于丝氨酸蛋白酶家族， 但其内在酶活性高于一般的丝氨酸蛋白酶原。广泛存在于丝氨......
Tissue culture,biochemical techniques and radioimmunoassay were used to study the effects of CompoundLian Zhu Capsule (......
合成Ｌ－丝氨酸希夫碱及其铜（Ⅱ）镍（Ⅱ）配合物，用１ＨＮＭＲ、元素分析、ＩＲ、热重－差热分析和摩尔电导对它们进行了表征。结果表明：配体及其铜（Ⅱ）、镍（Ⅱ）配合......
目的探讨国人脂蛋白脂肪酶基因外显子9特别是Ser447→stop变异对血脂水平的影响。方法利用聚合酶链反应—单链构象多态性技术筛查......
测定了3个三元体系LaCl_3-Am-H_2O(Am=Gly,Glu,Ser)在25℃时的溶度和饱和溶液的折光指数。报道了三元体系中生成的三元配合物La(Gl......
Serum Thyroglobulin——A Sensitive Biomarker of Iodine Nutrition Status and Affected by Thyroid Abnorm
Objective To evaluate the usefulness of the thyroglobulin(Tg) level in adults as a nutritional biomarker of iodine statu......
The spectrum of antimicrobial effects of melittin were investigated on 19 pathogens by using a cylin-der-plate method wi......
Mechanical properties of clay under high stress are quite different from those under low stress. It is necessary to inve......
以自行合成的丝氨酸铜Cu（Ser）2和甘氨酰甘氨酸铜Cu（Gly-Gly）2作为SOD模拟物，在pH7．8及（20．0±0．5）℃条件下，用脉冲辐解法分别研究其催化超氧阴......
目的 探讨 mt DNA突变与遗传性耳聋的关系 ,以及突变家系对氨基糖甙类抗生素(aminoglycoside antibiotic,Am An)耳毒敏感性差异的......
【目的】通过敲除生防菌Act12铁载体合成酶Ser基因,研究该铁载体在植物防病促生中的作用。【方法】以自杀型质粒p KC1132作为基本......
A new photonic crystal ring resonator(PCRR) configuration is provided based on two-dimensional(2D) square lattice photon......
The effects of silicon particle content and testing temperature on friction and wear properties of casting in-situ silic......
出生日期：1999年7月7日 爱好：骑自行车、游泳 座右铭：长风破浪会有时，直挂云帆济沧海。 就读学校：湖南省武冈市第三中学315班......
With the development of cultural exchanges between China and foreign countries,a great number of English songs,serving a......
目的:探讨抗线粒体抗体(AMA)阳性和阴性的原发性胆汁性肝硬化(PBC)患者的临床表现、血清学和免疫学指标及病理特征。方法:选取98例......
Central RF frequency is a key parameter of storage rings. This paper presents the measurement of central RF frequency of......
- This paper describes the design of a permeable caisson breakwater with slanting slabs (Types I and 11) and presents s......
Born in August 1954 in Taian,Shandong Province, the renowned painter Wu Jinliang has been obsessed with painting since h......
Mathematical modeling of an armature assembly in pilot stage of a hydraulic servo valve based on dis
The dynamic performance of a nozzle-flapper servo valve can be affected by several fac-tors such as the disturbance of t......
In this paper, the dispersion compensation of 4X 10Gb/s 800km G.652 fiber by chirped optical fiber Bragg grating (FBG) ......
A simplified dynamic model of a dish antenna in satellite is established in this article.The modelcan be easily used to......
目的:该研究采用以蟾酥和人参为主要配方的安迪粉针剂(Andi)为研究对象,观察了该药对肿瘤细胞的药物毒性作用和对电离辐射生物学效......
A novel chromatic dispersion monitoring method for 400 Gbit/s 256 QAM fiber-optic system based on as
A novel chromatic dispersion(CD) monitoring technique based on asynchronous amplitude sampling(AAS) is proposed for a hi......
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Effect of Trimetazidine on Diabetic Patients with Coronary Heart Diseases: A Meta-Analysis of Random
Objective To explore the therapeutic effects of trimetazidine (TMZ) on diabetic patients with coronary heart diseases. M......
Robotic Etiquette:Socially Acceptable Navigation of Service Robots with Human Motion Pattern Learnin
本文通过对荣华二采区10...
重组白细胞介素 11(ＩＬ - 11)全长 185个氨基酸 ,是一种多功能生长因子 ,在巨核系生成 ,免疫调控以及粘膜保护等方面起着重要作用 ,经......
作者用较小剂量的β-ser干扰素(IFN)成功地治疗毛细胞白血病12例,其中男10例,女2例,平均年龄45岁。有10例曾分别经过脾切除(7例)......
Adaptive Relaying Protocol for Decode and Forward Full-Duplex System over Rician Fading Channel: Sys
In this paper, the system perfor-mance of a decode-and-forward (DF) full-du-plex (FD) adaptive relaying network over the......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
