数环

Studies on quantitative determination of active principles in Chinese herbal medicine by second derivative differential pulse polarography.

二阶导数差示脉冲极谱法的建立及在药物分析中的应用。药学学报，1992，27(2)：157。[4] 梁云爱，李见春，门孝英。环磷酰胺及其制剂的二阶导数差示脉冲极谱法定量研究。

In chapter 4, we define the projective dimension of flat modules, use it to characterize many rings, and the relations between cotorsion modules and the projective dimension of flat modules are also given.

在第四章中，我们定义了平坦模的投射维数，用它刻划了一些环，并讨论了Cotorsion模和严坦模的投射维数的关系。

According to two hypotheses: one for the relation between the dynamic complex stiffness and the material dynamic characteristics, another for the relation between the static displacement and the force acting on the element, the predicting formula for rectangular cross section are obtained respectively using the static stiffness formulation from the beam——column theory and the G〓bel method.

利用粘弹性材料的标准导数和分数导数模型的本构关系，建立了动态储能和损耗模量函数的关系式，由材料特性实验确定其中的参数，按元件的动态复刚度和材料动态特性之间与元件静态位移与作用力之间的关系假定，依柱梁理论或G〓bel的方法建立的静刚度表达式，建立了矩形截面环元件的刚度和阻尼的预测公式。

We discuss some properties of GPP- ring and the relations between GPP- ring and - regular ring.

在第三章中，我们主要讨论了n-平坦模和n-FP内射模，定义了n-平坦维数和n-FP内射维数，并考虑了交换n-凝聚环中的n-平坦模和n-FP内射模。

Also, a matrix Riccati equation was converted by decreasing its rank, which enables the closed-circular system.

同时通过详细推导，把一个阶数很高的矩阵Riccati方程降为一个阶数很低的Riccati方程，从而使闭环系统可以实现。

Mehtods Thirty male SpragueDawley rats were randomly divided into acute stress,chronic stress and control group(each n=10),acute and chronic stress models were made with forced swimming and empty bottle stimulation separately,and frequency of getting into central grille, detention time , outer grille numbers,modifying numbers and dejecture grain number were observed with openfield experimental box;expressions of neuropeptide Y and adenylcyclase in prefrontal lobe cortex, hippocampus CA3,striatum of the groups were observed using the immunohistochemistry method and correlation analyses conducted.

将30只雄性SD大鼠随机分为急性应激组、慢性应激组和正常对照组，每组10只，用强迫游泳和空瓶刺激分别制作急性和慢性应激模型，采用开野实验箱观察各组大鼠进入中央格次数、停留时间、外周格子数、修饰次数、粪便粒数；采用免疫组织化学方法检测各组大鼠神经肽Y、腺苷酸环化酶在前额叶皮质，海马CA3区，纹状体的表达水平，并进行相关分析。

Mehtods Thirty male Sprague??Dawley rats were randomly divided into acute stress,chronic stress and control group(each n=10),acute and chronic stress models were made with forced swimming and empty bottle stimulation separately,and frequency of getting into central grille, detention time , outer grille numbers,modifying numbers and dejecture grain number were observed with open??field experimental box;expressions of neuropeptide Y and adenylcyclase in prefrontal lobe cortex, hippocampus CA3,striatum of the groups were observed using the immunohistochemistry method and correlation analyses conducted.

将30只雄性SD大鼠随机分为急性应激组、慢性应激组和正常对照组，每组10只，用强迫游泳和空瓶刺激分别制作急性和慢性应激模型，采用开野实验箱观察各组大鼠进入中央格次数、停留时间、外周格子数、修饰次数、粪便粒数；采用免疫组织化学方法检测各组大鼠神经肽Y、腺苷酸环化酶在前额叶皮质，海马CA3区，纹状体的表达水平，并进行相关分析。

Methods Study the effect of G. lucidum spores oil (at the dose of 2.5,1.25,0.725 g/kg) on reducing the toxicity of the Cy chemotherapy and 60Co radiotherapy by detecting the number of the peripheral blood leucocyte, the number of bone marrow karyota;spleen index, thymus index of normal mice and H22-bearing mice by carbon clearance test and serum erythrocytolysin test. Results It showed that G.

方法以正常和 H22荷瘤小鼠为对象，通过检测外周血 WBC数、骨髓有核细胞数、脾脏指数、胸腺指数来观察口服灵芝孢子油(2.5，1.25，0.625 g/kg)对于环磷酰胺化疗及60Co放疗的减毒作用；通过小鼠碳廓清实验、血清溶血素测定实验检测药物对 H22荷瘤小鼠免疫功能的影响。

By invoking a suitable measure of shape, e.g., the absolute rotation index or elastic bending energy, a "good" interpolant is selected. A new means to differentiate among the solutions is introduced here, namely, the winding number of the closed loopformed by a union of the hodographs of the couple of PH cubic and of the unique "ordinary" cubic interpolant.

已有的插值算法都是依赖于构造出所有四个解，利用绝对旋转数或弹性弯曲能量来找出这条&好&的插值曲线，本文介绍一种新的方法来区分这些解，即用由三次PH曲线偶和惟一传统三次插值曲线的速端曲线形成的闭环的弯曲数来区分。

Stroke Lead Ball center-to-center diameter Basic load rating Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm mm mm kN kN kg kg/m 70 1 4.15 0.29 0.42 0.01 0.07 Type using standard material Standard grease Standard seal Iron-based AFB-LF None Dimensions of the Ball Screw Nut Attached with Wiper Ring W and QZ Lubricator WW avail- ability QZ avail- ability Dimensions including WW L Length of protrusion with QZ attached QWL Outer diameer...

载荷钢球圈列数 DN值预压预压方法导轨型号 3列 1.00圈 70000 有大球径滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无 EK4， FK4 轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹无 35.0 螺纹条数防尘措施防尘罩形式 W清洁环与QZ润滑装置配用。。。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。