查询词典 gradient method

With a hybrid method of genetic and gradient algorithm, the coupling coefficients of couplers were calculated.

利用混合遗传梯度算法，计算了级联Mach-Zehnder干涉仪EDFA增益平坦器中各个耦合器的系数。

Their directional solidification is carried out by either Czochralski technology in the water-cooled copper crucibles or floating zone method without crucible, but the temperature gradient is not high with these two methods.

其定向凝固或者是在水冷铜坩埚内采用Czochralski技术进行，或者是采用不需要坩埚的悬浮区熔法实现，但这两种方法都不能得到较高的温度梯度。

The present paper developed a new method in which extract analytes from seafood product s by DI water followed by precipitating proteins from extraction by trifluoroacetic acid and analyse polyphosphates in pre- pared extraction by suppressed conductivity ion chromatography whose gradient eluents were obtained by Eluent Generator.

本文建立了一种采用去离子水提取，三氟乙酸作为蛋白沉淀剂对海产品样品进行前处理，采用淋洗液自动发生装置在残产生 KOH 进行梯度淋洗，抑制型电导离子色谱法，检测海产品样品中多聚磷酸盐的方法。

The present paper developed a new method in which extract analytes from seafood product s by DI water followed by precipitating proteins from extraction by trifluomacetic acid and analyse polyphosphates in pre- pared extraction by suppressed conductivity ion chromatography whose gradient eluents were obtained by Eluent Generator.

本文建立了一种采用去离子水提取，三氟乙酸作为蛋白沉淀剂对海产品样品进行前处理，采用淋洗液自动发生装置在线产生KOH进行梯度淋洗，抑制型电导离子色谱法，检测海产品样品中多聚磷酸盐的方法。

There is still no effective method on effectively curing this disease. In this paper, egg-yolk antibody against WSSV was prepared and its effectiveness on preventing and curing this disease was tested. In order to get adequate WSSV antigen, the differential-speed centrifugation and the sucrose gradient ultracentrifugation were used to isolate and purify WSSV from the foregut and gill tissues of shrimps affected with WSSV.

为了获得足量的WSSV抗原，本文以感染WSSV的对虾前肠和鳃等组织为材料，分别利用差速离心法和蔗糖密度梯度离心法进行了WSSV的分离纯化，结果表明：利用差速离心法虽然能够使所分离的WSSV的完好率达70﹪左右，但其中杂质较多，病毒粒子的收获量较少；利用蔗糖密度梯度离心法提取WSSV，虽然其完好率稍低于差速离心法，但也可以达到60%以上，并且，所得到的WSSV的量要大大高于差速离心法，适合于WSSV的大量分离。

His paper studied inversion method of ground temperature field and ground temperature gradient field based on 3D static heat conduction theory.

研究了基于三维稳态热传导理论并忽略对流换热及地质构造等次要因素影响的地温场与地温梯度场的反演方法。

Coli, and purify rWHcAg under native condition by precipitation with saturated ammonium sulfate and CsCl gradient centrifugation; Immunize Balb/c mice with purified rWHcAg to prepare antiserum; Establish a competitive inhibition ELISA method to detect WHcAb in serum of Chinese marmots.

原核表达重组WHcAg，氯化铯密度梯度离心获得非变性的纯化蛋白；用该纯化蛋白免疫Balb/c小鼠制备多克隆抗体；建立竞争抑制ELISA方法用于检测旱獭血清中的抗－WHc。

Methods MSCs were obtained from tibias by density gradient centrifugation and were tested the rate of adhesion. The configuration was observed under phase-contrast microscope consecutively and the cell growth was measured by MTT method.

测定其接种贴壁率，在倒置显微镜下连续观察细胞的形态变化，利用甲基噻唑基四唑（methyl thiazdyl tetrazolium， MTT）法测定 MSCs 生长曲线，并应用流式细胞术测定细胞表面标记物。

Methods MSCs were obtained from tibias by density gradient centrifugation and were tested the rate of adhesion. The configuration was observed under phase-contrast microscope consecutively and the cell growth was measured by MTT method. Cell cycle and surface antigens were detected through flow cytometer.

测定其接种贴壁率，在倒置显微镜下连续观察细胞的形态变化，利用甲基噻唑基四唑（methyl thiazdyl tetrazolium， MTT）法测定 MSCs 生长曲线，并应用流式细胞术测定细胞表面标记物。

With the gradient-based re-estimation method, comparable recognition rate is achieved to that with Baum-Welch algorithm.

由于似然概率是模型参数的复杂函数，计算似然概率时尚且要借助前向概率的迭代方法，更何况其偏导数。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。