常规方法

A PID control method based on BP neural network was proposed,concerning the multi-layered temperature control of calenderer rollers and the limitations of the conventional PID control which resulted from the control of the nonlinear and time-varying system.The system design and software development were also presented.

针对压延机辊筒多段温度控制以及常规PID控制在非线性的、时变系统中控制效果的局限性，提出了一种基于BP神经网络整定的PID控制方法，给出了计算机控制系统设计，建立了比例、积分和微分三种参数自学习的PID控制器。

METHODS: Autologous whole blood was injected into the vitreous cavity of albino rabbits after canalization, thus induced experimental PVR model. Concentration of PDGF.

采用眼穿通伤+注血法制备PVR模型，进行眼底及常规组织病理学观察，ELISA法检测玻璃体中血小板源性生长因子的浓度，用免疫组织化学方法观察增生膜与血管内皮细胞表面血管细胞粘附分子-1（VCAM-1）及细胞间粘附分子-1（ICAM-1）的表达。

There is no significant difference in age,education background and the iv cannula insertion sites between two groups.

对照组采用常规的留置针输液和健康教育法，实验组采用系统护理方法，比较2组病人留置针使用情况。

Usage: Use a capful to1-30 with water( according to the wall material and how heavy the pollution is), and then clean with the usual way.

使用方法：将该清洁剂一份加三十份水（据外墙面的材料和污垢的程度需要做相应的调整）常规方式即可清洗墙面。

The separation and determination of caproic acid,1-octanol and octyl caproate by high performance liquid chromatography on the Kromasil C18(150 mm×4.60 mm,5 μm) column with V∶V=95∶5 as mobile phase and with refractive index detector were also studied.

按常规有机合成方法合成了己酸正辛酯，采用在Kromasil C18(150 mm×4.60 mm，5 μm)柱上，以V∶V=95∶5为流动相及示差折光检测器的反相高效液相色谱法，30 ℃分离和测定了己酸、1-辛醇及己酸正辛酯。

Methods:Twenty one cerebrospinal fluid specimens from 13 patients with meningeal carcinomatosis and 7 specimens from 5 non meningeal carcinomatosis patients were tested with routine cytologic examination and CEA immunocytochemistry examination.

结果 ：常规脑脊液细胞学检查阳性率 4 2 。86 %(9/ 2 1 )，CEA免疫细胞化学检查阳性率 80 。95 %(1 7/ 2 1 )，两者相差显著(P 。0 5 )；其中对首次腰穿获得的脑脊液标本检查，两种方法的阳性率分别为 30 。77%(4 / 1 3)和 76 。92 %(1 0 / 1 3)，两者相差也显著(P 。0 5 )；非脑膜癌病患者的脑脊液检查结果均为阴性。

Purpose: To explore a kind of method determining the cardia position in simulating location.

目的：探讨一种在常规模拟定位条件下正确判定贲门位置的方法。

A total of 145 samples of semen were analyzed by CASA and SRA.

目的评估常规精液分析方法和计算机辅助精子质量分析各项参数的可信度。

The method has better accuracy and recovery and is suitable for determining pyrethoid pesticides in celery cabbage.

该法具有较高的精密度和灵敏度，且操作简单、分析速度快，可作为一种经济实用的分析方法应用于大白菜中拟除虫菊酯农药残留的常规检测。

METHODS摘要: Fourteen patients proved pathologically as brain abscess and 17 cystic/necrotic metastatic tumor underwent conventional MRI and DWI examinations. DWI signal and ADC value were evaluated in cerebritis stage, capsule formation stage, and evolution stage of brain abscess and compared with those of cystic/necrotic metastatic tumor. Chisquared test and t test were performed for statistic analysis.

方法摘要：病理及临床证实脑脓肿14例，坏死囊变脑转移瘤17例，经常规磁共振检查及弥散加权检查，在脑脓肿脑炎期、包膜期及吸收期进行弥散信号及ADC值的测量，并和坏死囊变脑转移瘤相比较，统计学分析采用χ2检验和t检验。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。