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After being sieved, the cottonseed meal was processed by density fractionation with K 2CO 3 solution for those ones the diameter in 105～220,220～355,355～450 μm and bigge...

采用筛分和液选相结合的方法可以得到蛋白质含量为 6 6 %的棉籽浓缩蛋白，蛋白质收率 75 。2 %。

Strains from farming water and intestine of cobia showed different sensitivity to the same antibiotic. 4 strains which resisted to 3 or more than 3 species antibiotics were sieved from this study.

不同来源（即分别来自养殖水体和鱼肠道）的弧菌菌株对同种抗生素的敏感情况存在一定程度的差异。

The three dimension parallel numerical computation of the wet-sieved concrete specimen was executed successfully to verify the program of random convex polyhedron aggregate.

4为了验证本文提出的多面体骨料生成方法，利用现有细观力学分析并行程序成功地实现了对湿筛混凝土试件三维细观并行数值计算。

Therefore, high efficiency can be achieved. The circuit parameters are decided according to the intrinsic impedance of the resonant tank. As the duty ratios of the active switches are fixed, the charging current should be programmed via tuning the circuit operation frequency and therefore the circuit impedance. The optimum operating point is sieved by the frequency response diagram to operate the charger at high efficiency.

至於并联负载电路参数的设计是以共振槽的特性阻抗为基准，调变切换频率并固定主动开关的责任周期，藉由频率的变化改变电路阻抗，以控制充电电流的大小，透过频率响应立体图，挑选适当的操作点，使共振式充电器运作於最佳状态，以获得高效率。

The effects of circumfluence temperature were also studied. The result showed that it was optimal to extract motionlessly 60-mesh-sieved rubber seed for 1h using petroleum ether. The yield of solvent extraction was 10% higher than that of three or four times machine-squeezed oil.

结果表明：橡胶籽仁含油率为46.72%；从橡胶籽油的成本、操作安全和劳动生产效益考虑，在橡胶籽仁粉能过60目筛、橡胶籽仁粉与溶剂为10：75、常温常压下，以石油醚为提取溶剂、静置提取方式、提取时间1h最佳，溶剂提取橡胶籽油达35.18%，比经3～4次机械压榨提取橡胶籽油高10%左右。

University ,Changsha 410075,HunanAbstract: In view of the deficiency in methods for choosing zonation indicators of mudflow danger degrees,a new method for choosing zonation indicators of mudflow danger degrees is put forward based on the rough set theory in this paper.Firstly,according to the environmental conditions of forming mudflows,an indicator choice system is established.Then the indicators for choice are discretized by indicator grading.Finally,based on the discernable matrix of the rough set,a core set of the indicators is found and the representative indicators are sieved out.

摘 要：针对现有泥石流危险度区划指标选取方法的不足，本文基于粗糙集原理，提出了一种新的区划指标选取方法，即首先根据泥石流形成的环境背景条件，建立备选指标体系，然后根据指标等级对备选指标离散化处理，最后利用粗糙集的分辨矩阵对指标进行求核约简，筛选出代表性指标。

Many patient taxonomist s from several European countries and America then sieved through litres of muddy gravel with microscopes and pairs of tweezers to see what treasures had been captured.

来自欧洲几个国家和美国的许多分类学家耐心地用显微镜和镊子对数以升计、沾满烂泥的沙砾进行筛分，来看看什么样的宝贝被铲了上来。

By the damage evolving relation proposed the flexural process of the trisection specimens of wet-sieved and fully-graded concrete was numerically simulation.

根据本文提出的损伤模型和损伤参量演化关系，分别对湿筛混凝土和全级配混凝土试件进行了三分点加载数值模拟。

Methods The antimicrobial peptides of housefly larvae were induced largely by infection and injury, which were isolated and purified by trituration, centrifugalization and column chromatography. Then the antimicrobial peptides with anti-Toxoplasma activity were sieved by methyl thiazolyl tetrazolium colorimetric method and haemacytometry. The DNA contents of T.gondii tachyzoites were detected by flow cytometry.

通过损伤加感染的方法诱导家蝇幼虫大量表达抗菌肽，然后经过研磨、离心和层析等过程，分离纯化并筛选出抗弓形虫作用的抗菌肽，采用流式细胞术分析其对弓形虫速殖子DNA含量的影响。

objective to isolate and purify the antimicrobial peptides with anti-toxoplasma gondii activity isolated from the haemlymph of musca domestica larvae.methods the antimicrobial peptides of musca domestica larvae were induced by infection and injury were isolated and purified by trituration,centrifugalization and column chromatography.then the antimicrobial peptides with anti-toxoplasma activity were sieved by mtt colorimetric method and haemacytometry.results it was found that two antimicrobial peptides had anti-toxoplasma activity through resource s cationic column chromatography and superdex g75 gel column chromatography.conclusion the two antimicrobial peptides with anti-toxoplasma activity existing in the haemlymph of musca domestica larvae had different anti-toxoplasma effect.

作者单位：山西医科大学寄生虫教研室，太原 030001；化学生物学与分子工程教育部重点实验室山西大学生物技术研究所目的从家蝇幼虫血淋巴中分离纯化具有抗弓形虫作用的抗菌肽。方法通过损伤加感染的方法诱导家蝇幼虫大量表达抗菌肽，然后经过研磨、离心和层析等过程，将家蝇幼虫抗菌肽进行分离纯化，采用四甲基偶氮噻唑蓝比色法和血细胞计数法筛选对弓形虫速殖子有抑制作用的抗菌肽。结果经resource s阳离子柱和superdex g75凝胶柱层析后，筛选出2种对弓形虫速殖子有杀伤作用的抗菌肽。结论家蝇幼虫血淋巴中存在抗弓形虫作用的抗菌肽，而且不止一种，但其效果有所不同。

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。