The velocity profile, apparent viscosity and laminar - turbulent transition for dilatant cement slurry flow through ecentric annuli are studied in this paper.
本文研究了胀流型水泥浆在偏心环空中的速度分布、视粘度及流动状态的转变等问题。
Rovelli and Connes used this as a model for the statistical state of the universe, tossing in other information such as the radius of the observable universe, and looked to see what apparent time flow that would generate.
罗威利和阿兰孔涅把它作为宇宙统计状态的一个模型，加进其他的信息如可以观察到的宇宙的半径等，他们希望能观察到有什么明显的时间流程会产生。
It is apparent, then, that the properties of a fluid are a function of the flow velocity.
很明显，那么，性能的流体是一个功能的流速。
Three lubricants, ethylene bis-stearamide, zinc stearate, and Kenolube, which is a mixture of the former two components, are the most popular ones used in pressing metal powders. The effect of these lubricants on powder properties, such as flow rate and apparent density, and on the compacting performance, such as green density, green strength, and ejection force, are quite different But, little systematic studies on the advantage and disadvantage of each lubricant are available. The first part of this study was thus to investigate the effect of lubricant on the powder properties.
目前国内粉末冶金工业中最常用的润滑剂有白腊、硬脂酸锌及二者之混合物，这些润滑剂对於金属粉末之流动性、视密度等粉末特性以及生胚密度、生胚强度、压缩性、脱模力等成形特性，甚至烧结后之尺寸稳定性皆有其不同之影响，但这方面之完整报告仍不多见，因此本研究乃针对这些润滑剂之优缺点作一有系统之探讨，在第一部分中将著重在粉末之视密度、流动性及胚体重量之稳定性方面，而第二部分中将著重在成形方面，如生胚密度、生胚强度、成形性、脱模力。
The best resolution was observed under TEAA concentration of 0.05 mol/L, pH 6.8 and flow rate of 0.4 mL/min. While the effect of temperature on the separation was not apparent, effect of initial organic strength was stronger than that of the elution gradient.
三组反向序列在缓冲液浓度为0.05 mol/L，pH 6.8和流速0.4 mL/min条件下获得最大分离，温度对分离的影响不大，而初始洗脱强度对反向序列的影响远大于洗脱梯度。
Solid powder was adopted as unconditional seeding to study the flow characteristics of global field and atomized silicon oil droplets were used as conditional seeding to study the flow characteristics of reactants only. The measurement result of unconditional seeding, which does not distinguish the velocity of reactants or that of products, shows that in reacting zone, the measured velocity had a probability density function of two-peak distribution. The result tentatively demonstrates that in combusiton zone, the laser probe was alternatively subjected to low-speed reactants and high-speed products, due to flame flickering. The compounded measured velocities enlarges the span of velocity PDF and leads to a high turbulence. The measurement with conditional seeding, which limits the result to only those of reactants, shows no apparent difference between in flame zone and far upstream zone, in terms of mean velocity, turbulence and velocity PDF. The result affirmed the conclusion that the peak-turbulence in reacting zone is due to flame flikering.
采用雾化硅油只对反应物流场进行示踪，结果表明，脉动的、皱褶的预混火焰锋面对反应物流场性质并没有大的改变，在反应区内来流仍然保持原有的管流特征；采用耐高温固体粉末对全流场进行示踪，结果表明在火焰区内速度的概率密度分布为双峰分布，其中速度较低的峰的中心速度与硅油示踪得到的平均速度一致；火焰区湍流度的增大主要是由于测量探头交替地处于高速的产物和低速的反应物之间，导致速度测值分散所致，得到的仅仅是统计意义上的结果，为表观湍流度。
The riser total pressure drop and apparent solids holdup increase with the solids-to-air mass flow ratio, and there is greater effect of solids-to-air mass flow ratio on apparent solids holdups in lower part of riser.
此外，床层总压降和截面平均颗粒浓度随固气质量比的增加而增加，在上升管下部截面平均颗粒浓度受固气质量比的影响比上部大。
The effect of die angle on the flow behaviour of high impact polystyrene melt was investigated by using a set of capillaries with different entry angles (2 α). The results showed that the flow of the melt basically obeyed the index law, the dependence of the apparent shear viscosity roughly accorded with the Arrhenius equation and the values changed with 2α.
选用一组具有不同入口角的毛细管口型，考察了挤出过程中入口角(2α)对HIPS熔体流动行为的影响，实验结果表明，熔体的流动基本上服从幂律，其表观剪切粘度对温度的依赖性大致上符合Arrhenius方程，其值随着2α的不同有所改变。
Based on the free radical reaction kinetics, kinetic models of the free radical polymerization and grafting were constructed, and expressions of reaction rate, monomer concentration, monomer conversion and initiator concentration were deduced. According to the statistical theory of polymeric reactions, the average molecular weight can be divided in three hierarchies: the first is that of polymer chains instantaneously produced, the second is that of polymer chains considering the cumulative effect and the third is that of the fluid with both the reactant and the production taken into account. Expressions of the number-average molecular weight and weight-average molecular weight for each hierarchy were constructed. The continuity equation, the momentum equation as well as the initial and bondary conditions were derived to describe the viscous incompressible fluid flow process. On the basis of polymer physics, expressions of zero shear viscosity and apparent viscosity related to processing conditions and material structures were built.
结合上述空间模型，给出了反应挤出过程的化学反应场、材料结构场与化学流变场的基本控制方程：根据自由基反应动力学理论，构建了自由基均聚及接枝反应的动力学模型，得到了反应速率、单体浓度、单体转化率、引发剂浓度的计算式；根据高分子反应统计理论，考虑相对分子质量三层意义上的统计平均——瞬时生成的聚合物平均相对分子质量、考虑了历史累积效应的聚合物平均相对分子质量与同时考虑反应物和产物的整个材料体系的平均相对分子质量——构建了每个层次数均、重均相对分子质量的计算式；给出了黏性不可压缩流体流动过程的连续性方程、运动方程和边界条件；根据高分子物理学，建立了反应体系的零剪切黏度、表观黏度与工艺条件、材料结构的关系式。
The apparent consumption of the flow of fully reflects investor confidence in the development prospects of the Eastern, Eastern highlighted the value of real estate investment.
表观消费的流通，充分体现了投资者的信心在发展前景的东欧，东欧突出的价值，房地产投资。
Coastal highway traffic flow to improve the trend more apparent.
沿海地区高速公路车流量改善趋势更加明显。
On the basis, the influence of dimensionless apparent permeability variation factor and mobility ratio to flow performance has been analyzed.
在此基础上，分析无因次表观渗透率变化系数和流度比对产量动态的影响。
Comparing with the two-phase equilibrium flow model of gas-particle flow, the apparent sonic velocities of two-phase flows are also obtained.
将实验结论与两相平衡流理论进行比较，建立了气粉流表观音速计算公式。
The results of CE-LIF and flow cytometry were correlated. The membrane properties of K562S cell including fluophor transport rate and apparent permeability coefficient were further quantitatively characterized.
主要研究内容如下：第一，采用CE-LIF联合流式细胞仪高通量地对单个白血病细胞系母细胞系(K562S)细胞中的荧光物质罗丹明123进行了定量检测，并将CE-LIF与流式细胞仪的测定结果进行了关联。
Apparent chemical activation energy of flow and apparent curing reaction activation energy were calculated by Roller equation, respectively.
并用Roller法确定固化反应过程中表观化学粘流活化能和表观固化反应活化能，分别为148.2kJ/mol和161.2 kJ/mol。
Results:(1)Compared with normal level, blood flow velocity decreased, the vertebral arteries blood flow asymmetry more apparent.
结果：(1)后循环脑梗死患者急性期血流速度较正常值明显降低，左右椎动脉血流不对称较明显。
Die casting products very often show non-filling, hot cracking, apparent flow mark and deformation etc. These defects are closely related with process conditions of filling time, fusion temperature, cooling temperature of die and maintaining pressure etc.
压铸产品经常容易发生充填不足、热裂、表面流纹与变形等缺陷，这些缺陷和射出压力、射出速度、射出温度与模具温度等制程条件有密切关系。
Die casting products of magnesium alloys very often show non-filling, hot cracking, apparent flow mark and deformation etc. These defects are closely related with process conditions of filling time, fusion temperature, cooling temperature of die and maintaining pressure etc.
镁合金压铸产品经常容易发生充填不足、热裂、表面流纹与变形等缺陷，这些缺陷和射出压力、射出速度、射出温度与模具温度等制程条件有密切关系。
Before falling besides paragraph time is falling changed an ET660 that associate, want to add some of good-looking top of a table to novice machine, then picture of search mobile phone looked for a few websites, looked for some of favorite picture, but the flow that this picture downloads makes a person depressed really, apparent did not take care of an user to experience a gender, obviously but it must let the work that two paces complete you are many, picture even one Zhang Zhang's download, put right key of Zhang Zhang, additionally for classification not quite reasonable also, finding favorite kind to just discover original measure do not suit.
再说下前段时间在下换了个联想的ET660，想给新手机添些好看的桌面，于是搜索手机图片找了几个网站，找了些喜欢的图片，可这图片下载的流程确实让人郁闷，很明显的没照顾到用户体验性，明明可两步完成的事它非要让你多点几下，图片还要一张张的下载，一张张的右键、另存为分类也不太合理，找到喜欢的类型才发现原来尺寸是不适合的。
The effects of hypocapnia and the cerebral autoregulatory response on cerebrovascular resistance and apparent zero flow pressure during isoflurane anesthesia.
在这个数据调查中，我检测了将一个高风险的气管导管交换从一个盲视过程变成一个声门可见的过程的可行性和实用性。