1909 wilhelm ostwald germany 1910 otto wallach germany 1910年奥托瓦拉赫德国
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The nobel prize in chemistry : wilhelm ostwald 诺贝尔化学奖-威廉奥斯持瓦尔
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Ostwald color system 奥斯瓦德颜色体系
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Ostwald color circle 奥斯瓦德颜色圈
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2 . a series of nanoparticles with different size can be obtained from just one reaction process based on the technology of time control and sampling in different phases as suggested by ostwald ripening theory in colloid chemistry . 3 2 .根据奥斯瓦尔德成熟理论( ostwaldripening ) ,采用时间控制、分段取样方法,能够在一次性生长过程中得到大小成系列分布的cds纳米量子点。
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Based on the ostwald - de waele equation , the leakage characteristics of power - law transmitted by helical gear pump are researched , and the leakage model of power - law in the clearence is founded , and - the velocity distributing and the leakage capacity are worked out by the boundary condition . the power loss of leakage is got through the clearence leakage capacity , and the friction power loss is attained by the velocity distributing . the mathematic calculation model 利用幂律流体本构方程，首次对聚合物流体在斜齿齿轮泵中的漏流特性进行了研究，建立幂律流体在间隙中的泄漏模型，利用边界条件求出速度分布及泄漏量；由间隙泄漏量得到漏流损失功率，由速度分布得到流体摩擦功率损失，并得到间隙最优解的数值计算数学模型，同时给出实例及数值计算结果。
