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The effective stimulating sites were indentified by defensive cardiovascular response and other components of defence reaction evoked by 3 s trains of rectangular cathodal pulses (100Hz, 0.5ms pulse duration, 70 -150μA intensity for dPAG and 150-250μA for PF) delivered from a programmed multichannel constant current stimulator. The responses included an increase in blood pressure and heart rate, pupillodilation and an increase in the rate and depth of respiration. Currents of 1Hz, intensity of 100- 150μA for dPAG and 200-250μA for PF were used to observe the effect of the stimulation of them on RVLM neurones. The deep peroneal nerve and superfacial deep peroneal nerve were carefully separated, and put on a pair of stimulating electrode respectively, Both nerves were stimulated with constant rectangular pulses of 1Hz, 0.5ms duration and 300μA current intensity to see their effects on RVLM neurones. The baro-and chemo-receptors were activated by the intravenous injection of phenylephrine or 0.208 M NaH2PO4. The degree of convergent inputs to individual RVLM neurone was studied by the stimulation of the sites mentioned above. It was found that neurones about 61.4%(27/44) and 35.3%(6/17) received convergent inputs from three and four places respectively.

过去的研究主要集中于整体水平，利用电刺激或化学刺激RVLM神经元，观察对血压、心率及交感活动的影响，并对影响心血管交感活动的神经递质进行了广泛探讨，积累了大量资料；在神经元水平，主要研究刺激脑内核团、外周神经、化学感受器及压力感受器等对RVLM神经元放电的影响和某些神经递质影响神经元活动的机制、然而，对RVLM神经元如何整合不同信息、其可能突触机制等研究得较少，本互作拟采用在体细胞内、细胞外记录电活动与微电泳，结合中枢核团及外周神经电刺激等方法，对RVLM神经元在不同状态下的整合作用规律与可能机制进行初步探讨，为进一步了解这一复杂的整合过程提供新的理论依据。

Current distributions in a cathodically protected crevice between a simulated coating and segmented mild steel electrodes were measured in diluted NaCl solutions. The effects of the control potential, solution conductivity and crevice thickness on the current distribution were studied.

1前言在联合采用绝缘覆盖层和阴极保护技术防止土壤或水中的钢结构，特别是地下油气管线外壁腐蚀的情况下，阴极保护能否完全防止剥离覆盖层下的缝隙腐蚀成为近些年来阴极保护领域的一个研究热点［'］。

The factors that affected the degradation rate of methyl red are discussed, including the concentration of methyl red, the kind of electrolyte, the concentration of sodium bromide, the anodic current density, the material of electrode, the cathodic current density and the flow rate of oxygen at the catholyte.

探讨甲基红浓度、电解质种类、电解质浓度、阳极电流密度、电极材料、阴极电流密度与阴极室氧气流量等因表对甲基红电分解的影响。

Under this background, this article systematically demonstrates the summarized theory and method of sewage disposal and retrieval and utilization, the article take the waste water through film production as the research object, take the ceramicite as filling, adopt with the process of biological aerated ceramicite filter, discussing the feasibility of disposal of the waste water through film production as well as realizing the purpose of sewage First of all, this article briefly introduced the traditional process of sewage disposal and state of development; introduces the course of Lucky film company's sewage disposal and current situation; analyzes emphatically the history of material of filter, current situation and development as well as the domestic application achievement of biological aerated filter and existing problems.

本文系统综述了污水处理及回用的理论和方法，并以胶片生产废水为研究对象，以陶粒为填料，采用曝气生物滤池的工艺，探讨处理胶片厂生产废水的可行性及实现污水回用的目的。首先，本文简要介绍了传统的污水处理工艺及发展状况；介绍了乐凯胶片公司污水处理的历程及现状；着重分析了滤料的历史、现状和发展及曝气生物滤池在国内外的应用成果及存在问题。

However, dexamethasooe did not seem to affect the sustained current and the sustained component of the biphasic current induced by ATP. The in hibitory effect of dexamethasonc on ATP induced currents was blocked by glucocorticoid receptor antagonist RU38486 (10μmol/L) and protein kinase A inhibitor H-89 (10μmol/L), but not by G protein inhibitor GDP-β-S (0.2mmol/L) and protein kinase C inhibitor chelerythrine chloride (10μmol/L).

地塞米松对ATP激活电流的快速抑制作用可被糖皮质激素受体拮抗剂RU38486(10μmol/L)、蛋白激酶A抑制剂H-89(10μmol/L)阻断，而G蛋白激活抑制剂GDP-β-S(0.2mmol/L)、蛋白激酶C抑制剂Chelerythrine chloride(10μmol/L)对地塞米松的快速抑制作用无明显影响。

Due to the current, induced by a lightening strike or a fault , flows into the mesh , a potential rise and an influx of circumambient current could induce a major fault .In order to maintain a safe and stable power supply system and to protect workmen and equipments form being damaged.

为使电力系统供电之稳定与安全，变电所接地系统相对重要，而变电所接地系统的主要目的，除了确保人员的安全之外，并须保护机器设备免於受损。

As an application example, we present the analytical solution to the eddy current problem that a single-turn coil driven by solitary pulse current is arranged coaxially with a spherical conductor.

作为应用，给出了通有单脉冲电流的单匝圆环线圈与球形导体共轴的涡流问题的解析解。

Historical cost, current market value, current cost, netrealizable value and present value of future cash flow are concretive expressive forms of fair value.

历史成本、现行市价、现行成本、可变现净值和未来现金流量的现值等，都是公允价值的具体表现形式。

Article union is current the current situation of gap of our country income, offerred the main the way to deal with a situation of contractible income gap.

文章结合目前我国收入差距的现状，提出了缩小收入差距的主要对策。

Cotemporary medicine mode emphasizes both experience and evidence, on the base of collecting the case history and physical examination, asking doctor to use of current best evidence to solve the clinical problems by evidence, lay down preventive and treat measure by searching and reviewing documents effectively and founding and using current best evidence.

现代医学模式是在强调经验医学的同时强调循证，即在仔细采集病史和体格检查基础上，要求临床医师进行有效的文献检索，运用评价临床文献的正规方法，发现最有关和正确的信息，最有效的应用证据，根据证据解决临床问题，制定疾病的预防措施和治疗措施。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。