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夹河选煤厂集中控制装置

煤炭科学技术 1979年第5期7卷 28-31,41页

作者：张景宽

近年来,由于我国电子工业的发展,半导体器件和集成电路的出现,在选煤厂设备的集中控制方面也得到了应用。夹河选煤厂全厂集中控制装置就是采用 HTL 系列高阈值数字集成电路元件组装的。由于 HTL 系列集成电路具有独特的抗干扰能力,适用... 详细信息

近年来,由于我国电子工业的发展,半导体器件和集成电路的出现,在选煤厂设备的集中控制方面也得到了应用。夹河选煤厂全厂集中控制装置就是采用 HTL 系列高阈值数字集成电路元件组装的。由于 HTL 系列集成电路具有独特的抗干扰能力,适用于选煤厂设备集中、噪声干扰大的场合,可靠性强,故障率低。采用 HTL 系列高阈值数字集成电路组合成13种逻辑功能元件,分别对原煤、水洗、浮选三套工艺流程(共39台设备、66台电机)进行了程序控制。

关键词：集中控制装置选煤厂数字集成电路高阈功能元件半导体器件系统的可靠性抗干扰措施故障率印刷板

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估测卵泡期早期卵泡刺激素(FSH)水平增高的患者卵泡发育终末期初始化的FSH阈值

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世界核心医学期刊文摘（妇产科学分册） 2005年第2期1卷 28-29页

作者： De Koning C.H. Schoemaker J. Lambalk C.B. 石磊

To test the hypothesis that the folli cle -stimulating hor-mone(FSH)threshold in patients with elevated FSH levels in the early follicular phase(EFP)is higher than in *** *** *** patients with elevated EFP FSH(>10IU /L)and ***-ment with a GnRH agonist in the midlut eal phase before IV administration of recombinant FSH w as started in an ul-tra -low -dose step -up *** FSH threshold was determined by the mean of FSH levels o f the above threshold value and the below thresh old *** -stimulating hormone threshold,FSH screening value,E 2,number of *** FSH threshold in the elevated EFP FSH group was 6.75IU /L and was significantly higher than the FSH threshold of the controls(4.65IU /L).The FSH screening value on day 3was 12.0I U /L in the pa-tient group and 5.0IU /L in the contro *** significantly lower on the day that t he largest follicle was 18mm in the elevated EFP FSH group compared with controls(277vs.491pmol /L,respectively)-.On the day of hCG administration,the number of sm aller(10-13mm)follicles was equal but the number of larger(>14mm)follicles was higher in the control g roup compared with the elevated FSH *** the contro l group,the basal FSH levels correlated highly with th e FSH threshold levels(r =0.8),but in the patients with elevated EFP FSH this correlation was *** normal wo men,basal FSH day 3values represent the ovarian thresh old for *** womenwith elevated day 3FSH,the FSH threshold is higher but not as high as basal FSH *** postulate that the FSH threshold in patients with elevated EFP FSH is higher be-cause of intraovarian *** l FSH overshoots the threshold,probably because of the l imited feedback by the ovary.

关键词：卵泡发育 FSH 卵泡刺激素卵泡数目黄体中期小卵泡大卵泡高阈激动剂试点研究

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运动神经元在脊髓损伤后肌痉挛发生中的作用

世界核心医学期刊文摘（神经病学分册） 2005年第3期1卷 29-30页

作者： Gorassini M.A. Knash M.E. Harvey P.J. 陈云春 513 HMRC Centre for Neuroscience University of Alberta Edm onton Alta. T6G 2S2 Canada

Motoneurons in the spinal cord have intrinsic voltage dependent persistent in ward currents (PICs; e.g. persistent calcium currents) that amplify synaptic inp uts by three to five fold in addition to providing a sustained excitatory driv e that allows motoneurons to fire repetitively following a brief synaptic excita tion. In this study, we examined whether prolonged involuntary muscle spasms in subjects with long term injury to the spinal cord are mediated by the activatio n of PICs in the motoneuron. To examine this in the human, we used a paired moto r unit analysis technique where the firing frequency of one motor unit of the pa ir (control unit) was used to estimate the synaptic drive to the motoneuron pool , including the drive to a second higher threshold motor unit of the pair (test unit). The degree to which a motoneuron PIC helped to sustain the discharge of a test motor unit (self sustained firing) was determined from the reduction in control unit firing at de recruitment (△F) compared with recruitment of the te st unit. This △F value corresponds to the reduction in synaptic drive needed to counteract the intrinsic PIC and, thus, was used an indirect measure of this cu rrent. In the nine motor unit pairs studied, the average estimated synaptic driv e, or control unit firing rate, required to recruit a test motor unit at the ons et of a muscle spasm was significantly higher (by 43%) than the estimated synap tic drive during derecruitment at the end of a muscle spasm. This indicated that a motoneuron PIC, and associated self sustained firing, facilitated the firing of the test units during the prolonged muscle spasms. In addition, in all subje cts tested (seven out of seven), we observed that following a muscle spasm or vo luntary contraction, spontaneous and self sustained firing of motor units could continue for many seconds, even minutes, at very low discharge rates (average 5.2 ±.1.6 Hz) with extremely low spike to spike variability (coefficient of v ar

关键词：脊髓损伤运动神经元肌痉挛肌肉阵挛运动单位钙离子流神经元群高阈尖波放电率

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激痛点电凝针的研制及临床应用

颈肩腰腿痛防治通讯 1985年第4期 13-15页

作者：王全美王筱林候明夫徐栋华第83医院骨科第83医院骨科

我院于1983年10月,研制成电凝针,并应用于临床,到1985年6月已对120例软组织疼痛患者的600多个激痛点进行治疗,操作简便,效果满意,部分患者的疗效优于其它的治疗方法,为软组织疼痛的患者增加了一种新的治疗手段。研制激痛点电凝针的目... 详细信息

我院于1983年10月,研制成电凝针,并应用于临床,到1985年6月已对120例软组织疼痛患者的600多个激痛点进行治疗,操作简便,效果满意,部分患者的疗效优于其它的治疗方法,为软组织疼痛的患者增加了一种新的治疗手段。研制激痛点电凝针的目的意义: 软组织内分布着许多高阈值的伤害感受器,如对张力、P~H、缓激肽敏感的感受器,在正常情况下,这些感受器不兴奋,当软组织因急性损伤、慢性劳损、感染、缺血、坏死等时,局部内环境发生改变,HK~+,缓激肽、组织胺等增高,刺激伤害性感受器,引起疼痛,这些灶性刺激就形成了激痛点。治疗软组织疼痛,其着眼点应放在使刺激物质在局部的浓度减低,迅速变性而减效

关键词：电凝针伤害性感受器软组织疼痛伤害感受器性刺激缓激肽临床应用高阈内环境针点