外加

The types of common concrete admixture s and their characteristics are briefly introduced.

简要介绍了常用外加剂的种类及其特性，从每种外加剂的特性出发分析了其在混凝土施工中的应用，以促进外加剂的广泛应用，大大改善混凝土的工作性能。

The mortar mixed with SJB doesn't dehisce, knob or crack. So it is widely used for brickwork, plasterwork and floor flating. SJB is a recommended product by China Construction Science Research Institute.

希望国家建设相关部门能加大砂浆外加剂质量管理力度，并能举办砂浆外加剂质量评比，使建筑施工单位都能用上质量好的砂浆外加剂，造福百姓。

High extent is in proper order: paramagnetism matter＞ferromagnetism matter＞diamagnetism matter. The highest values of retention rates are occurring in 0.3 T.The article summarizes the effect of magnetic field on the fermentation liquid membrane filtration process. Found that magnetizing also can increase the membrane flux and the removal rate of protein and COD.

文章从物质的磁性来源、分子间位能和外加磁场的关系，黏度、表面张力和内能的关系以及外加磁场出现多极值的原因分析等方面分析了外加磁场影响物质性能的原理，认为外加磁场对物质性能的影响在于外加磁场影响了分子的取向，从而引起了溶液中分子的重排所致。

The relation between the load equivalent capacitance and the load voltage amplitude ...

根据外加电压在负载上产生的平均电流推导出负载等效电容与外加电压幅值的关系，外加电压的幅值或频率越高，放电过程的功耗越大。

It was shown that TAPP and its metalloporphyrin complexes all had good photoconductivity. The surface photovoltage response in tensity of Soret band and Q band were enhanced with an external positive electric field and weakened with a negative electric field, and possessed the characteristic of p-type semiconductor.

并研究了这些卟啉化合物在不同外加电场条件下的表面光电压谱，结果表明，TAPP及其金属配合物都具有良好的光电性能，且其Soret带与Q带的光伏响应强度随外加正电场光伏响应强度的增加而增强，随外加负电场光伏响应强度的增加而减弱，具有P-型半导体的特征。

A non-singular single integral mathematical model is adopted to calculate the external intermittent and alternative longitudinal magnetic field acquired by single axisymmetrical and cylindrical hollow coil t which is coaxial to electrode and excitated by a revisable pulsed current of square wave t in austenitic stainless steel GTA welding.

针对奥氏体不锈钢外加纵向磁场的气体保护钨极电弧焊接时，与电极同轴的单个轴对称空心圆柱线圈在双向脉冲矩形励磁电流作用下产生的间歇交变纵向磁场，采用无暇点单积分磁场的数学模型，对＊TAW焊接外加间歇交变纵向磁场进行了数值计算，该方法具有模型简单、计算速度快和精度高等优点并讨论了该间隙交变纵向磁场的分布、磁场的均匀性及其纵向分量与径向分量的比率等规律及其对焊接行为的影响，认为横磁分量将削弱GTAW外加纵向磁场的有利作用，影响磁控电弧的焊接质量

The results indicate that in the synchronizing condition the MRF is unyielded, every point of MRF in the flow field has the same angular velocity. Under the slipping condition, with the increase of magnetic field or the decrease of slip speed, MRF may transfer from whole yield to partial yield. When the MRF wholly yields, the angular velocity of MRF increases nonlinearly with its radius, the non-linear distribution becomes more obvious as the magnetic intensity in the working gap increases. When the MRF partially yields, the yield region expands with the decrease of magnetic intensity or the increase of slip speed and the unyield region always reaches the driven rotor. The transfer torque of MRTD increases with the increase of the external magnetic field, but the transfer torque maintains a constant value approximately with the variation of slip speed at the same magnetic intensity.

研究结果表明，在同步工况下，传动装置流场中磁流变液未屈服，各点角速度相同；在滑差工况下，随外加磁场的增大和滑差转速的减小，磁流变液逐渐从完全屈服向部分屈服转变；磁流变液完全屈服时，磁流变液角速度随半径呈非线性增加，工作间隙中磁场越强，流场的非线性分布越明显；磁流变液部分屈服时屈服区域随外加磁场的增大而减小，随滑差转速的增大而增大，未屈服区与主动转子相连；稳态下磁流变传动装置传递的转矩随外加磁场的增加而近似呈线性增大，但在相同外加磁场下，传递转矩基本不随滑差转速改变而改变，表现出良好的恒转矩特性。

After several reductions of absorptions of capacitances and transconductances tunned can enter the very precise range with the error rate very low for the simulation resonance frequency.Finally, The above thesis was verified by TSMC 0.35u H-Spice simulation and improve the non-ideal effect for filter circuit with OTA-C at a high-frequency.

主要方法为计算出寄生电容值大小，来适当调整外加电容值，当调整至外加电容值近似於寄生电容值时，此时将外加电容移除，并搭配OTA转导值的调整，可让此电路在高频无外加电容时有更精准的输出。

The distribution uniformity of external magnetic field is weakened by the cylindrical coil with some thickness ferric-core. The model of fluid flow and heat transfer of spot GTAW pool in longitude magnetic field controlling is developed for the first time, which incorporates the free surface, surface tension gradient, additional fluid drive forces owing to the external longitude magnetic, heat transfer between weld pool and medium, latent heat of solid/liquid phase and heat physical properties of materials.

综合考虑了焊接熔池表面张力温度系数的变化、熔池自由表面变形、外加纵向磁场对熔池流体的附加作用力、熔池与周围介质的换热、固/液两相区的熔化潜热、焊接材料的热物理性能等问题，将熔池自由表面变形、外加纵向磁场与熔池流场的计算过程相耦合同时进行分析，模拟了不同焊接材料、不同外加磁场以及不同焊接条件下外加纵向磁场GTAW定点焊接熔池流体流动与传热过程。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

本文分别采用不外加碳源和维生素B〓外加碳源（包括乳酸钠、丙酸钠或乙酸钠）、外加维生素B〓以及同时外加碳源和维生素B〓的方法，考察了p，p'-DDT、γ-HCH和HCB三种氯代有机污染物单独或混合存在下，在辽河沉积物中缺氧脱氯降解的情况，主要得到以下结论

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。