查询词典 factor loading

According to the integral equations of pipe flow, the relationship between the friction factor and the log-law was approached, as well as the effects of low Reynolds number on the relation of friction factor.

利用管流的积分方程，深入探讨了摩擦系数关系式的系数和对数定律常数之间的关系，进一步分析了低雷诺数对摩擦系数关系式的影响。

Experimental results indicate that the B/A value greatly affects the internal Nusselt number and friction factor of the twisted tube because the parameters decrease with the increase of B/A and S/d values, more rapidly with the former, and that the Nusselt number and friction factor of the twisted oblate tube increase respectively by 30%~150% and 20%~50%, as compared with those of the smooth tube at the same Reynolds number and Prandtl number.

实验结果表明：高扭曲比螺旋扁管的管内努塞尔数和阻力系数均随B/A值和S/d值的增大而减小，但随B/A值的增加而减小得更快，B/A值对高扭曲比螺旋扁管的管内传热与流阻性能影响更大；在相同雷诺数和普朗特数下，高扭曲比螺旋扁管管内的努塞尔数为光滑管的1.3~2.5倍；阻力系数为光滑管的1.2~1.5倍。

The experimental results indicate that, over a ranger of tube side Reynolds number and Prandtl number (Re=4000~20000, Pr=6~7.5), the internal Nusselt number and friction factor of spiral-flat tube increased by 30%-150% and 20%-50% respectively compared with smooth tube at the same Re and Pr. The value of friction factor decreases with increasing the value of B/A as well as increasing that of S/de, and the same phenomena can also be observed for Nusselt number.

实验结果表明：管内Nu和f值均随均随B/A值和S/de值的增大而减小，但随B/A值的增加而减小得更快，B/A值对螺旋扁管管内传热与流阻性能影响更大；在相同Re和Pr下，螺旋扁管管内Nu数为光滑管的1.3～2.5倍；阻力系数f是光滑管的1.2～1.5倍。

The highest heat transfer coefficient for air flowing in the nine 3-D IFT with staggered arrangement fins is No9 tube. In the turbulent region, the heat transfer coefficient of No9 tube is a factor of 10.36 compared with smooth tube, and its thermodynamic performance coefficient is as high as 6.49; The average Nusselt number in the most superior 3-D IFT with staggered arrangement can be increased by about 1.04 times in the laminar flow, and 6.38 times in the transitional flow as compared with that in the smooth tube. The friction factor between fluid and tube wall can be 0.96 times in laminar flow, and 12.68 times in transitional flow as compared with that inside the smooth tube.

在进行实验的九根肋叉排三维内肋管中，换热最强的No9管与光管相比，在紊流区的换热强化比平均可达10.36倍，阻力增大比约为4.06倍，其热力性能系数高达6.49；在过渡流区的换热强化比平均可达6.38倍，同时阻力增大比约12.68倍；在层流区的换热强化比为1.04倍，而阻力增大比仅约0.96倍。

The evaluation methods for coke factor and gas factor of FCC equilibrium catalysts were discussed.

探讨了催化裂化平衡剂生焦因子和生氢因子的评价方法。

The influence of operation condition, metal content of equilibrium catalysts and properties of feed oil on coke factor and gas factor was investigated.

考察了操作条件、平衡剂金属含量以及原料油性能对生焦因子和生氢因子的影响规律。

Also, by using a novel offset architecture, as opposed to completely overlapped architecture, for the differential transmission pair, a 33% reduction of thickness is achieved in the design of a miniaturized common-mode filter with multi-layer LTCC technology. In view of increasing need of high-speed clock and data circuits to control their skew problems, a design of LTCC delay line is then conducted. To improve the waveform distortion associated with the microstrip/stripline-type meander delay line, a miniaturized high-frequency 3-D delay line with grounded guard traces is introduced. By means of 3-D structure, the 233 ps delay time, which requires extra board space amounting to a factor of 2.34 by stripline type meander delay line, can be shrunk into an EIA 1206 form factor.

为因应高速时脉及高速线路的不断发展，用於控制讯号、时脉同步的延迟线路需求日益增加，接著讨论的题目便是应用低温共烧陶瓷制程技术设计多层的延迟线路元件，为了改善在微带线/带线型折线式延迟线路波形失真的问题，论文中提出以接地的防护线来设计小型化的三维多层延迟线路元件，比较应用带线型折线式延迟线路和应用三维架构设计的延迟线路元件，同样提供233 ps的延迟时间，多层架构设计之延迟线路可缩小至EIA 1206 的尺寸，省下2.34倍的电路板面积。

Methods: The CD34+ cells and AC133+ cells were gathered by MiniMACS, then the cell factors were divided into 6 groups. Through the ex vivo comparison cultivation under different cell factor combination stimulation, expansion of the CD34+ and AC133+ selection cells was observed and the clone formation of the CD34+ and AC133+ cells was also observed by using Half-solid Methyl cellulose under different cell factor stimulation (in7d, 14d, 21d.). The rate of cell apoptosis was determined.

常规富集人骨髓CD34+及AC133+细胞，应用本研究组设计并已经证实的细胞因子组合方式，对人骨髓CD34+及AC133+富集细胞进行体外对照培养，分别观察CD34+和AC133+富集细胞的扩增情况；应用甲基纤维素半固体培养法，观察不同组别培养7、14、21d CD34+和AC133+富集细胞的集落形成情况及细胞凋亡率。

Methods CD34(superscript +) cells and AC133(superscript +) cells were gathered by MiniMACS, then the cell factors were divided into 6 groups. Through the ex vivo comparison cultivation under different cell factor combination stimulation, expansion of the CD34(superscript +) and AC133(superscript +) selection cells was observed and the clone formation of the CD34(superscript +) and AC133(superscript +) cells was also observed by using Half-solid Methyl cellulose under different cell factor stimulation (during 7d, 14d, 21d.). The rate of cell apoptosis was determined.

常规富集人骨髓CD34及AC133细胞，应用本研究组设计并已经证实的细胞因子组合方式，对人骨髓CD34及AC133富集细胞进行体外对照培养，分别观察CD34和AC133富集细胞的扩增情况；应用甲基纤维素半固体培养法，观察不同组别培养7、14、21d CD34和AC133富集细胞的集落形成情况及细胞凋亡率。

Comparison calculation is made in terms of cover factor,view factor and inner heat source.

文章认为加热带双面涂黑漆对热真空试验低温工况的实现会起到一定的作用。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。