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- The volume optimal design of an equi-strength two degree static-indeterminant beam subjected to a concentrated force and geometry constraint is studied by means of the stepped reduction method. 利用阶梯折算法,研究了集中载荷作用以及几何约束条件下,二次等强度超静定梁的体积优化设计。
- Keywords thienyl）ethylamine;two step reduction method;synthesis; 噻吩乙胺;两步还原法;合成;
- stepped reduction method 阶梯折算法
- Nanometer W-Ni-Fe composite powder was produced by the method of two step reduction of W-Ni-Fe composite oxide powder, in which the procedure parameters were controlled. 利用两阶段还原法对W Ni Fe复合氧化物粉末进行还原,控制还原工艺的参数制得纳米级W Ni Fe复合粉末。
- Concertina reduction Method of reducing a tariff structure by reducing the top rate at each step of the transition to the next highest level, leaving the lowest rates unchanged. 折裥状减低减低关税结构的一种方法,即减低每一级段中的最高税率,而保持各级段最低税率不变,形成折裥状,故名。
- Thus a comb notch filter based new interference reduction method is proposed. 文中提出了一种梳状陷波器干扰抑制新方法。
- The paper also gives a rule reduction method to make the results succinct and understandable. 此外 ,还提出了一种分类规则约简方法 ,使挖掘的结果更简洁、更易理解
- Superoxide (O-2) from zymosan-stimulated neutrophils of rat was measured by NBT reduction method. 用NBT还原法测酵母多糖A刺激大鼠中性白细胞产生的O2-;
- Superfine silver powder was prepared by water-hydrazine hydrate chemical reduction method. 介绍了电子浆料用超细银粉的研制,采用的是水合联氨化学还原工艺。
- An energy reduction method for screw feeder of defibrator was described based or related theory. 依据理论得出螺旋进料器降能的方法,该方法可用于热磨机的改造之中,实践证明这种方法是可行的。
- This thesis investigated firstly the synthesis of ultrafine nickel powders by liquidphase reduction method. 本文首先研究了液相还原法制备超细镍粉。
- A system model reduction method based on regional pole and covariance equivalent is proposed. 文中提出了一种基于极点分布和输出协方差匹配的随机系统模型降阶方法。
- CNP and ET in plasma were detected by RIA and NO in serum were detected by cadmium reduction method. 结果:冠心病组血浆CNP、ET含量均明显高于正常对照组(分别为P<0.;01;P<0
- This comprehensive noise reduction method aims to cut out the noise before it reaches the cabin, ensuring the highest tranquility in its class. 这项全面降噪减震的新方法采取噪音路径阻断的方式，在噪音未到达乘客车厢之前已经进行吸收，实现业内顶级的宁静表现。
- Clack soybeans of noduleted and non-noduleted isolines were used for the study of acetylene reduction method in vivo to measure symbiotic N fixation in pots. 本文选用克拉克结瘤与不结瘤等位基因系大豆为实验材料,对乙炔还原活体测定盆栽大豆共生固氮方法进行研究。
- Benzimidazoles(3a-c,5a-c) were synthesized in a one step reductive cyclization reaction of(o-nitroanilines)(1,4) and aryl aldehydes(2a-c). 邻硝基苯胺(1;4)与芳香醛(2a-c)在连二亚硫酸钠存在下共热;发生还原关环反应;一步即可合成苯并咪唑类化合物(3a-c;5a-c).
- The reading of symbiotic N fixation from acetylene reduction method in vivo were remarkably higher than those from the method in vitro. 所测共生固氮值极显著,高于乙炔还原离体方法估测值;
- Based on the Neighborhood Preserving Embedding (NPE) algorithm, a novel dimensionality reduction method called ONPE is proposed. 摘要在邻域保护嵌入算法的基础上，提出了一种新的降维方法-正交邻域保护嵌入算法。
- The paperproposed a reduct method of an incomplete information system based on covering rough set theory and maximal consistent block technique. 提出了一种基于覆盖粗糙集理论、利用最大一致块技术进行不完备信息系统约简的方法。
- Conclusion The reduction method with hydrazine hydrate has the advantages of mild condition,reproducibility and higher yield. 结论水合肼还原法具有反应条件温和、重复性好,产物易分离提纯、转化率较高的优点。
