效率测量

These methods include a photocatalytic degradation of methyl orange solution-spectrophotometric method to measure the degradation rate of organic matter by self-cleaning glass, a UV-Vis spectrophotometric scanning procedure to measure the transmittance and a hydrophility measuring method by using a contact angle meter.

详细研究了用以表征自洁净玻璃主要性能的各种测定方法：采用紫外光辐照降解甲基橙－分光光度法测定自洁净玻璃对有机物的降解效率即光催化活性；利用紫外可见光分光光度计扫描测量其透过率光谱曲线；用接触角测定仪测量其样品表面的亲水性。

The series used circles with transmission, guaranteeing her balance quality and accuracy, ring belt transmission loading convenient, efficient measurement series using JP-380 computer measurement systems, rotational speed, money, phase visual shows, rotors six types can be optional, and can remember the volume imbalance, and other devices can use piezoelectric-type sensors, and the output volume is large, and both small and performance stability.

本系列采用圈带传动，保证了工件的平衡质量及精度，圈带传动装卸方便，工作效率高，测量系列采用JP-380微机测量系统，转速、量值、相位显示直观，转子的6种类型可任选，并能记忆不平衡量，机电换能器采用压电式传感器，输出量大、体积小、性能稳定。

The series used circles with transmission, guaranteeing her balance quality and accuracy, ring belt transmission loading convenient, efficient measurement series using JP-380 computer measurement systems, rotational speed, money, phase visual shows, rotors six types can be optional, and can remember the volume imbalance, and other devices can use piezoelectric-type sensors, and the output volume is large, and both small and performance stability.

本机采用圈带驱动，装卸方便、启动快。本系列采用圈带传动，保证了工件的平衡质量及精度，圈带传动装卸方便，工作效率高，测量系列采用JP-380微机测量系统，转速、量值、相位显示直观，转子的6种类型可任选，并能记忆不平衡量，机电换能器采用压电式传感器，输出量大、体积小、性能稳定。

How to exactly measure the coal mass of pulverizer in fossil power plant is one of primary causes that the efficiency of milling control is low and the automation is difficult to running. Aiming at the limitation of evidential theory, As the neural network has self-organize, self-learn, collateral distributing manage, strong fault tolerant and robustness, we combined the evidential theory and the neural network and put forward a two-step fusion method.

火电厂中钢球磨煤机筒内存煤量的测量问题一直是制粉控制效率低和自动控制难以投入运行的主要原因之一，针对D-S 证据理论存在的不足，而利用神经网络具有的自组织、自学习、并行分布处理、高度容错性和鲁棒性的特点，本文提出了一种将证据理论与神经网络相结合的数据融合方法，并将其用于解决球磨机存煤量的测量问题。

Thermal conductivity A of mass and single pellet is successively measured by an efficient and steady heating system, of which the heat source is infrared ray. The milli-volt instrument and thermocouple is a way to measure temperature and its of higher precision and has fewer errors. Thermal diffusivity a is researched based on the study of C and. In this thesis, the volume convective heat-transfer coefficient, is measured on the thin-bed drying plat in terms of the principle of cooling machine and the Boyce drying theory, focusing on the air velocity v or mass flux G affecting on h.

导热系数λ的测定采用红外线纵向热流法，热源稳定、效率高；温度采用毫伏表加热偶温度传感器测量，精度高，误差小，并对成堆物料和单个颗粒均作了研究；基于C和λ的测量结果，导温系数α采用公式法计算而得；对流换热系数h_y为体积对流换热系数，其测定是模拟颗粒饲料的冷却干燥过程，依照冷却器的工作原理，构建颗粒薄层干燥试验台，并在Boyce干燥理论的指导下，重点测试了冷却风速对对流换热系数的影响。

Section method is to split the pit slope surface into several trapezoids so as to calculate their surface area;through a digital survey of the pit slope surface,a numerical elevation model is set up,on the surface the triangular mesh is built,and all the triangular meshes are piled up to get the surface area.

小三角锁法是通过对宕口坡表面数字化测量，根据测量数据建立数字高程模型，并在表面建立小三角锁，对所有小三角的面积累加得到面积的一种方法。小三角锁法大大提高了计算的准确度和效率。

The efficiency of isotope exchange was only 2.84%, namely, the amount of less than 3% tritium was exchanged out of the glass uranium bed by deuterium, and after isotope exchange proceeded time after time, its standard deviation was 7.35%.

同位素交换法测量铀床氚的结果如下：加热充分解吸过的铀床经多次同位素交换后，其交换效率仅为2.84%，即不到3%的氚被氘气载带出来，其同位素交换法测量的标准差为7.35%。

This new type of probe can measure the surface of free-form such as impeller machine. It has the advantages of large measurement range, high accuracy and efficiency.

西安理工大学硕士学位论文该新型测头的研制可以实现叶轮机械等自由曲面的表面形状测量，具有测量范围大，精度高，效率高等优点。

The performance curves of the experimental fan have been obtained and the flow field has been measured at the best efficiency point of each setting angle, in fixed plane downstream the rotor with a constant temperature hot-wire anemometer and a periodic multisampling and averaging technique by an on-line microcomputer.

对轴流式通风机在不同安装角时的流场变化进行了实验研究，得到了通风机的总性能曲线；并用固定在转子前、后测量平面的热线，测量了最高效率点处不同安装角时叶片通道进、出口轴向和切向速度的分布，从而能够清楚地了解到，通风机在安装角变化时，叶片通道进、出口截面流动结构的变化。

Allthe models satisfy the precision and strength requirements.6 CFD is employed to simulate the application of tube with static mixer in anindustrial furnace, in which a tube model library containing the geometricalmodel and physical model in common use is build.7 Disturbed flow in tube with static mixer is demonstrated in an experimentsystem designed and manufactured by the author. Fluid field is measured byuse of seven-hole probe method. An experimental system are designed and builtfor this purpose.

建立了一个由模型的几何、物理参数组定义的常用模型的模型库，提高计算效率，缩短放大研究周期。6、提出了基于速度的流场扰流效果的评价方法，将之应用于流场设计和扰流元件结构优化的评价中，获得了量化的评价结果。7、设计、制造流动显示实验系统，验证静态混合式炉管对流体的扰动效果：采用七孔探针流体力学实验方法，在流体力学实验测量系统中，对静态混合式炉管模拟流场的三维速度分布和流体、压力降等进行测量。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。