性能

Researches on the settling characteristics of the discharges from the storm sewer systems had the following results:①For dry-weather discharges, the settling characteristics of TP , TN was poor, while of COD and SS were comparatively good.

对分流制系统出流沉降性能的研究表明：①早流污水中TP、TN的沉降性能较差，而COD和SS的沉降性能相对较好。

Moreover, the hot compressive deformation behavior of the RS/PM AZ91 magnesium alloy and AZ91 alloy matrix composite were also investigated, the conclusions are drawn as follows:1. The processing parameters of the atomization-twin rolls quenching technology were optimized as follows: the diameter of the nozzle 1mm, the wheel velocity 25m/s, the pressure of atomization gas 0.3MPa and Ar gas for melt injection 0.1MPa. The RS AZ91 alloy flakes exhibited fine and uniform microstructures. When the flakes were extruded at 673K, extruded velocity of 0.1mm/min and extrusion ratio of 25:1,the magnesium alloy rods with clean surface, uniform dimension and excellent mechanical properties were obtained.2. The RS AZ91 magnesium alloy powders prepared by atomization-twin rolls quenched technology exhibited fine equiaxed grains with the grain size of 1-3μm, the phase constituent included supersaturate solid solution phaseα-Mg and miner fineβ-Mg_(17)Al_(12) phase. The as-extruded materials also exhibited equiaxed grains with the size of 5-7μm and a large number of fineβ-Al_(12)Mg_(17) and fewer AlMg_2Zn phases were detected in the alloy.

本文还研究了快速凝固/粉末冶金AZ91镁合金热压缩变形流变应力行为，快速凝固/粉末冶金法原位生成Mg_2Si增强AZ91镁基复合材料，经过系统的研究，获得如下结论：1、雾化-双辊急冷法在下列工艺参数组合下：双辊线速度25m/s；喷嘴直径1mm；熔体压射压力0.1MPa；雾化气体压力0.3MPa。，可获得宏观尺寸细小、微观组织均匀细小、综合性能优良的的快速凝固AZ91镁合金细碎箔带，快速凝固箔带在挤压温度为673K、挤压速度为0.1mm/min，挤压比为25：1时，可获得的外表光洁、尺寸均匀、组织性能优异的镁合金棒材。2、雾化-双辊急冷法制备的AZ91镁合金粉末态为细小等轴晶组织，晶粒尺寸1-3μm，组织为α-Mg过饱和固溶体和微量的细小β-Mg_(17)Al_(12)相组成；粉末挤压棒材为等轴晶组织，晶粒尺寸5-7μm，组织中含有大量细小的β-Al_(12)Mg_(17)以及AlMg_2Zn析出相，室温力学性能，抗拉强度383MPa，屈服强度275MPa，断后伸长率7.5%。

Using tapioca starch as raw material to prepare oxidized starch is better if we need the oxidized starch with low viscosity,can be used with high concentration starch slurry, and good transparency, good whiteness, low retrogradation and syneresis. Then, the research of using oxidization technology to improve the properties of tapioca crossed-linked and esterified starch was also researched: under the conditions of

然后，研究了应用氧化技术来改善木薯交联酯化淀粉的性能，在次氯酸钠用量为0.2%， pH8.5恒定反应，室温反应，反应过程不控温的反应条件下对木薯交联酯化淀粉进行氧化，可以在保持其交联酯化淀粉的应用性能不改变的前提下，大幅度提高产品的透明度，改善了产品应用性能。

In this paper, first, we analyse the glass forming ability by theoretic method and experiment. Then we have the glass forming zone by experiment for our research\'s convenience. In this zone, we have detrail research on the Na_2O-TeO_2-WO_3 glasses and analyse the microstructure, raman spectra, thermal stability, crystallization of the tellurite glasses.

本文首先以玻璃形成理论为基础，分析了碲酸盐体系的成玻性能，并通过实验研究，确定了Na_2O-TeO_2-WO_3体系的成玻范围，研究了该体系玻璃的微观结构、热性能和析晶性能等。

The effects of elasticity of metal bellows on performance ofmechanical seals have been studied in detail for the first time, which has not been doneuntil now. Furthermore the relations between leakage rate, friction factor, wear rate andelasticity of bellows have been developed. These results have been verified by the teston the rig.

首次通过对焊接金属波纹管机械密封性能的理论分析，详尽探讨了波纹管弹力对机械密封性能的影响，得到了密封端面泄漏量、摩擦磨损系数与波纹管弹力关系的计算公式，并在机械密封性能的试验台架上通过了实验验证。

Taking the shell fabrics and adjuvants used for the winter dress as the example, based on the structure parameters test and dry-cleaning experiments with petroleum solvent and tetrachloroethylene, the sample performance before and after dry-cleaning, such as thickness, dimennsion contraction, crease recovery angle, drape coefficient bending stiffness and color difference and so on, is tested.

以冬季女上装常用面料和里料为例，在对其进行结构参数测试和石油溶剂、四氯乙烯干洗剂干洗实验的基础上，对试样干洗前后的厚度、尺寸变化率、折皱回复性能、悬垂性、刚柔性、色牢度等相关性能指标进行了测试，着重就干洗对服装面辅料性能的影响进行了对比分析和总结。

Result was indicated: whose mechanics function and thermotics function all improve to some extent after changing nature, whose optical quality does not come down at the same time basically.

结果表明：改性后其力学性能与热学性能都有所提高，同时其光学性能基本没有下降。

Morphology Top-Hat operator can detect peaks and valleys in images, it can be used to detect candidate small targets.

同时进行了该方法与传统高通滤波检测方法，在抗噪声性能、背景抑制性能以及抑制虚警目标性能等方面差异的比较实验。

The thermoelectric property of Ca3Co4O9 is mainly from Ca2CoO3 layer, but it seems to have no direct relation to the CoO2 layer, which is consistent with that binary oxides hardly have thermoelectric property, but trinary oxide compounds have quite good thermoelectric property.

Ca3Co4O9的热电性能主要由Ca2CoO3层决定，而与CoO2层无直接联系，这与一般的二元氧化物无热电性能，而三元氧化物可能有较好的热电性能的结论一致。

The effect of the steel bar type and the heating temperature on the mechanics performance of steel bar was experimentally investigated.

进行了圆钢、螺纹钢、冷拔和冷轧扭4种钢筋高温下力学性能的试验研究，同时进行了螺纹钢筋高温冷却后力学性能的试验研究，并与室温下钢筋力学性能进行了对比分析。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。