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SYNTHESIS OF STYRYL-CAPPED POLYPROPYLENE via METALLOCENE-MEDIATED COORDINATION POLYMERIZATION: APPLY
In this paper, we review our recent progress in the synthesis and application of styryl-capped polypropylene (PP-t-St), ......
Hydrogen transfer reaction catalyzed by transition metal complexes has been studiedWidely. The unsaturated alcohols can......
A cascaded ytterbium-doped all-fiber master oscillator power amplifier(MOPA) with 1064-nm pulsed laser is demonstrated,a......
Surface modification of montmorillonite by means of Mg~(2+) insertion reaction has been studied and a positively charge......
Passively mode-locked grown-together composite YVO_4 /Nd:YVO_4 crystal laser with a semiconductor sa
A passively mode-locked grown-together composite YVO 4 /Nd:YVO 4 crystal laser is demonstrated with a semiconductor satu......
Pseudo-potential and plane wave basis-set under the framework of density functional theory have been employed to study t......
Magnetic and microwave absorption properties of Ni_(1-x)Zn_xFe_2O_4 nanocrystalline synthesized by s
Ni1-xZnxFe2O4(0≤x≤1,in steps of 0.1) nanocrystallines were synthesized by sol-gel route.The doping effects of zinc on ......
IMPROVEMENTS OF A DISTRIBUTED HYDROLOGY MODEL DHSVM AND ITS CLIMATOLOGICAL-HYDROLOGICAL OFF-LINE SIM
The advanced distributed hydrology-soil-vegetation model DHSVM,developed by Wigmostaet al.(1994)is introduced from US P......
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Convective heat transfer associated with the circulation of pore-fluid in porous rocks and fractures within the upper cr......
Ni-Cr and Fe-Cr-Al films deposited on the Al2O3 substrate are studied by a method of vacuum evaporation in this paper. ......
Aim:To investigate the effect of aluminum(Al)on high voltage-dependent cal-cium current(I_(HVA))and its modulation by g......
Geochemical characteristics of aromatic hydrocarbons in saline lacustrine crude oils and their signi
Based on quantitative GC-MS analysis of 40 crude oil samples collected from the south area of western Qaidam Basin,one o......
An infinite slope stability numerical model driven by the comprehensive physically-based integrated hydrology model(InHM......
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The upconversion emission spectra of Er3+ doped oxyfluoride tellurite glasses excited by 808 nm laser diode (LD) were me......
Laser-induced breakdown spectroscopy(LIBS)was developed to detect aluminumin nickel-based superalloys(K417,GH4033,DZ125......
Investigation of Surface Integrity on TC17 Titanium Alloy Treated by Square-spot Laser Shock Peening
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Proton and Neutron Mean Free Paths in Asymmetric Nuclear Matter and Effect of Ground State Correlati
Within the isospin-dependent extended Brueckner-Hartree-Fock ( IEBHF ) framework, the proton and neutron mean free path......
Using the most recent hydrologic and water quality data issued by U.S. Geological Survey, this paper deals with the pol......
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By starting from the dispersion relationship of a gyromagnetron,the expression of a small signal gainhas been derived.T......
基于极限平衡方程,在安全系数F_s=1的条件下,推导了潜在的不稳定坡体判识公式,形成了潜在不稳定坡体的判识方法;基于水文模拟,分析......
In this study, the parameters of Gassmann equation based on fluid replacement theory are studied by measuring the acoust......
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......
阐述了森林流域几种土壤水分运动方式(入渗、潜水蒸发、潜水补给以及壤中流)中非饱和土壤水与饱和土壤水之间转化的研究进展,并对......
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通过实际试验和理论分析，阐明了电流互感器严重饱和时的特性。在通过互感器电流达到准确限值电流后继续增大，二次电流虽然不能与一次......
Dietary saturated fatty acid and polyunsaturated fatty acid oppositely affect hepatic NOD-like recep
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储层微观非均质性普遍存在且影响着渗流特征。为了直观有效地表征和模拟储层微观非均质特征及其对水驱开发效果的影响，室内条件下研......
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以中国铝业青海分公司二期恒流控制系统为例,简要分析该控制系统的调节原理和调节范围,以使设备充分发挥其应有的效能。......
所研究的移相全桥软开关变换器带饱和电感的电路结构简单，能在很宽的范围实现滞后臂的零电流关断即ZCS，减小了占空比的丢失，提高了高......
利用一步激发的饱和吸收光谱技术测量了激发态Rb（5P3／2）态的原子密度，室温下的Rb—H2混合蒸气被780nm激光激发，在激光线宽远小于Doppler......
为满足兰州重离子加速器的实验要求,先后在中国科学院近代物理研究所14.5 GHz(LECR2)及l0 GHz+14.5 GHz(LECR3)高电荷态ECR离子源......
用薄膜滤波器作为调谐元件，在激光器谐振腔内加入一段未泵浦的掺铒光纤，利用其空间烧孔效应压窄线宽和稳定输出。设计了一种输出稳定......
推导了一般情况下反散射光子计数的理论公式,通过简化物理模型分析了影响反散射光子计数的各种因素,并且计算得到了不同几何条件下......
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利用双对向靶溅射方法在室温下制备Ｃｏ／Ｔｉ非晶多层膜，并采用原位退火透射电镜和原位热重法，观测了Ｃｏ／Ｔｉ多层膜结构与磁性随温度的变化，结果表明：退......
基于增长模繁殖(BGM)法构造集合预报初始扰动时,繁殖循环中扰动的发展和饱和情况是其关键技术之一.已有的一些研究基本上是以扰动......
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Wp^r H^α空间中，利用插值逼近的方法．研究了一类(O，p(D))三角插值多项式逼近的饱和问题，确定了逼近的饱和类与饱和阶．......
通过分析隐层神经元饱和度对网络性能的影响,构造了新的误差函数,同时设计了一种自适应调节的放大误差信号方法,得到新的BP学习算......
采用氧化物法制备La掺杂Ni-Zn铁氧体,样品的相组成成分、微结构和电磁性能分别采用X射线衍射仪（XRD）、阻抗分析仪和振动样品磁强计（VS......
在原始数列等时距处理的基础上,通过用一次累减数列与原始数列构建微分模型,得到了非等时距GM(1,1)直接模型;并给出2个具有不同饱......
本文介绍了在强震地震学研究方面国内外目前所关注的重要问题：隐伏断层和出露地表断层在地震发生时近断层地表运动特征存在着明显的......
Robust Predictive Control for Polytopic Uncertain Systems with Time-delay Subjected to Actuator Satu
Robust predictive control algorithms were presented for polytopic uncertain linear discrete systems with time-delay subj......
考虑埋置基础侧面和底面地基与基础的相互作用，研究了埋置于横观各向同性饱和地基中刚性圆柱基础的扭转振动问题。假设基础侧壁与地......
为了反映混合交通环境下驾驶员驾驶特性差异对通行能力的影响，根据驾驶员视觉特性提出交叉口通行能力计算中的驾驶员修正系数．采集真......
