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Based on the principle and fabrication of the optical waveguide laser,and through the configuration of the energy level ......
The nonradiative decay of a π-stacked pair of adenine molecules,one of which was excited by an ultrafast laser pulse,is......
A catalyst- and solvent-free multicomponent synthesis of 7-azagramine analogues via a Mannich type r
A catalyst- and solvent-free protocol for the synthesis of 7-azagramine analogues is described via a three-component Man......
The atomic and electronic structures of amorphous CuxZr100-x(x=36,46,50,56,64) alloys were simulated using first-princip......
AIM:To evaluate cardiac function and structure in un-treated human immunodeficiency virus(HIV) patients without clinical......
We investigate the formation of optical bistabifity (OB) in a crystal of molecular magnets contained in aunidirectional......
The MASNUM wave-tide-circulation coupled model,with 21 layers in the vertical and(1/8)°horizontal resolution,was employ......
详细考察了三种再生纤维素样品在宽广温度范围内（－１５０￣３５０℃）的粘弹性能。实验结果表明，在该温度范围内，三种再生纤维素均出现了ａ１、ａ２、ａｓｈ、ａ３、β和γ......
引入变换变量的概念，将发生平衡反应的反应精馏过程模型变换为普通精馏过程模型，减少了迭代变量，避免了反应量的计算，并易于采用普通精......
首次将Kumhlke脉宽计算公式应用于CPM,Nd:YAG激光器并对公式进行讨论,代入实验数据由计算机处理作出归一脉宽同小信号增益间的关系......
提出了应用于三维非对称温度场全息层析测量的一种最优松弛因子下有序迭代计算的最大熵重建算法。通过计算机模拟，考察了重建精度与......
建立了测量晶体内部时间结构的双偏振滤波式光子相关谱实验装置。并用此装置对铁电单晶BaTiO3中极化团簇的动力学行为实施了直接观......
根据聚丁二烯的在其玻璃化转变Ｔｇ≈１７８Ｋ附近的比热，研究其在驰豫过程中释放能量△Ｑ随其物理老化时间Ｔｗ的关系，发现△Ｑ（Ｔｗ）满足Ｋｏｈｌｒａｕｓｃ－Ｗｉｌｌｉａｍｓ－Ｗａｔｔｓ关系：△Ｑ＝Ｑ０（１－ｅｘｐ［－（ｔｗ／τ）＾β，其中Ｑ０＝２．３１Ｊ．＾－１；τ＝９３ｍｉｎ；β＝０．６０。......
[目的]探讨放松训练及认知干预对冠状动脉介入手术病人围术期应激反应的影响。[方法]选取本院心内科收治的128例冠状动脉介入手术......
松弛率是物理学中的一个重要参数。水面波的松弛率反映了其受扰动后的作用谱恢复到稳态所需的时间长短，因其受到多种海洋学和气象学......
间谐波是频率非基波整数倍的谐波成分，传统谐波测量方法将会因为非同步采样而产生泄漏误差。为准确测量间谐波，文中提出基于松弛谱估......
Vertical Decomposition Approach to Solve Single Stage Capacitated Warehouse Location Problem (SSCWLP
Single Stage Capacitated Warehouse Location Problem (SSCWLP) has been attempted by few researchers in the past. These ar......
针对由67CrVA弹簧钢制造的斯太尔发动机气门弹簧进行了各项性能试验,结果表明,气门弹簧经合适的喷丸强化、热强压工艺处理后,其疲......
