高速离心
- 名high speed centrifugation
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在高速离心的基础上,采用截留相对分子质量45000的超滤膜对GABA发酵液进行超滤分离。
The research is composed of three aspects : After a pretreatment of high speed centrifugation , a UF membrane with a MWCO value of 45000 is used to separate GABA fermentation broth .
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研制应用在高速离心干燥机上的电磁轴承,开发以数字控制器为核心的电控系统,采用PID控制算法,通过仿真获得的参数指导实际调试,实现控制参数的最优化。
The electromagnetic bearing used on high speed centrifugation driers is established , and an electric control system is used with a core of numeric controller , using PID control arithmetic . The control parameters used in guiding system debugging are optimized from system simulation .
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同时考察温度、盐、PH和和高速离心加速试验等对微乳稳定性的影响。
But also inspects temperature , salt , PH and and high-speed centrifugal acceleration test the effect on the stability of the breasts of micro .
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高速离心密度梯度法分离大鼠脑皮质线粒体,Clark氧电极法测定线粒体呼吸活性,极谱法测量COX活性。
Mitochondrial respiratory function and COX activity were measured by Clark oxygen electrode and polarography , respectively .
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用超细玻璃纤维滤膜采集杭州市某道路上机动车排放的苯并(a)芘,经超声萃取,高速离心后直接进HPLC分析。
The benz ( a ) pyrene discharged by vehicles was collected by air samplers with glass fiber filters , then analyzed by HPLC after supersonic extraction and clarification by centrifuge .
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结果发现,对于家蚕丝腺等样品组织,采用加液氮研磨、高速离心的方法比采用TCA沉淀的方法更为合适,蛋白损失少,图谱均匀清晰。
The results show that high-speed centrifugal method is more appropriate than TCA precipitation method for silkworm organs .
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与传统高速离心法的对比研究表明,该方法具有较高的EPS提取效率,测定结果的相对标准偏差<3%。
It has better extracting efficiency when comparing with traditional high-speed centrifugal method , the relative standard deviation ( RSD ) is less than 3 % .
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镜检观察当90%以上的芽孢脱落时处理菌体,经碱液裂解后比较等电点沉淀和高速离心方法提取Bt蛋白的收率和纯度。
The thallus was initially treated with lysis when 90 % of spores left cells , and then was treated by isoelectric point deposition and high-speed centrifugation respectively .
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另外,CNTs质量非常轻,通常需要长时间高速离心进行收集,存在耗时耗能的问题。
Besides , CNTs are very lightweight , centrifugation with long time and high speed is usually used to collect CNTs , which is time and energy consuming .
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LEWA过程隔膜泵与高速离心泵的比较
Comparison of LEWA Process Diaphragm Pump with High Speed Centrifugal Pumps
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用经硫酸铵沉淀、高速离心并用蔗糖密度梯度离心提纯的鸡传染性法氏囊病病毒(IBDV)免疫BALB/C小鼠。
BALB / C mice were immunized with infectious bursal disease virus ( IBDV ) which had been purified with ammonium sulfate precipitation , high-speed centrifugation and ultracentrifugation in a sucrose gradient .
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采集到新鲜胶乳经高速离心后得到橡胶粒子,并用percoll梯度离心方法得到大、小橡胶粒子。
Rubber particles were separated by high-speed centrifugation of the collected fresh latex samples , followed by percoll gradient centrifugation to obtain the samples of small rubber particles and large rubber particles .
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采用了多块网格技术、雷诺平均N-S方程和应用S-A湍流模型,对开式直叶高速离心泵叶轮内部流场进行了数值模拟,并对开式高速离心泵作出了试验研究。
The clumpy gridding technic , Reynolds average N-S equation and application S-A turbulence model are adopted to do the numerical simulation for inner flow field of the open straight-leave high-speed centrifugal pump impeller , The open high-speed centrifugal pump is experimentation studed .
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研究了在高速离心作用下,反萃液的离心温度和盐离子强度对AOT和蛋白质的分离程度及相互作用的影响,并确定最佳离心温度和盐离子强度。
In high speed centrifugation condition , the centrifugation temperature and NaCl ionic intension of reverse extraction solution were changed to study their effects on the separation degree and the interaction of protein and AOT , and the optimum centrifugation temperature and NaCl addition were selected .
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根据产品的使用经验及实际数据对高速离心泵和LEWA过程隔膜泵做了客观深入的比较,为使用者选择合适的设备提供依据。
Based on the application experience and actual data , the comparison of high speed centrifugal pump wth LEWA process diaphragm pump was objectively carried out , and the conclusion can be referenced by the users .
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青藤碱损失率以AB8树脂法最低(6.39%),而85%乙醇沉淀法最高(58.44%)。陶瓷膜微滤法损失率为15.31%,小于超滤、醇沉、高速离心和絮凝。
Loss rate of sinomenine by AB 8 type macroporous resin absorption was the lowest and reached 6.39 % , and that by ceramic membrane microfiltration was 15.31 % , less than that by ultrafiltration , alcohol sedimentation , centrifugalization and flocculation .
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开式高速离心泵的试验研究
Experimental study on high speed centrifugal pumps with an open impeller
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高速离心泵转子系统动态优化设计
Optimal Dynamic Design of High Rotational Speed Rotor-System of Centrifugal Pumps
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高速离心压缩机振动大的原因分析及处理
Cause analysis and treatment of severe vibration in high-speed centrifugal compressor
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valbyensis菌体,收集后的菌体用液氮研磨破碎,再用高速离心收集细胞膜片段。
The cell membrane fractions were collected by high speed centrifugation .
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小流量高速离心泵的一种优化方法
An Optimum Method for Low Flow High Speed Centrifugal Pump
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高速离心叶轮内部三维粘性流场的数值模拟
Numerical simulation of three-dimensional viscous flow field inside a high-speed centrifugal impeller
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立式高速离心泵系统振动分析与整改措施
Vibration analysis and technical improvement of vertical high speed centrifugal pump system
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高速离心泵轴向力平衡方法研究
A study on axial-force balance method of high-speed centrifugal pumps
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低比转速两级复合叶轮高速离心泵的研制
Development on low-specific-speed high-speed centrifugal pump with two-stage complex impeller
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高速离心喷雾机临界转速的计算
Computation of Critical Rotating Speeds for High Speed Centrifugal Sprays
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高速离心去除残余消毒剂效果观察
Observation on efficacy of high-speed centrifugation in removing residual disinfectants
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不同形式高速离心叶轮内部流动的数值模拟
Numerical simulation of inner flow in different-type high-speed centrifugal impellers
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造纸黑液高速离心喷雾干燥处理
Treatment of Black Liquor by High-Speed Centrifugal Spray Drying
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叶轮型式对超低比转速高速离心泵性能的影响
Impact of impeller type on performance of high-speed centrifugal pumps with ultra-low specific-speed