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排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
Binder M. Mammone R.J. Wade W.L. Jr. Rondeau E. Lavene B. 《Electrical Insulation Magazine, IEEE》1992,8(4):16-19
It is shown that the electrical breakdown voltages of polycarbonate film/metal foil capacitors can be increased. This can be achieved by briefly exposing the metal foil in these spirally wound film foil sections to a low-pressure, low-temperature gas plasma. Exposure of tin/lead foil to a 96% CF4/4% O2 gas plasma for four min, for example, produced >500% increase in breakdown voltage of sealed polycarbonate capacitors 相似文献
994.
S Ohkawa A Yamadori K Maeda M Tabuchi Y Ohsumi E Mori T Yoshida Y Yoneda T Uehara 《Canadian Metallurgical Quarterly》1993,56(8):894-896
In right middle cerebral territory infarction a new sign, excessive closure of the right eye ipsilateral to the lesion and mild closure of the left eye on command, was noted. The excessive ipsilateral eye closure was not observed on spontaneous eye closure. 相似文献
995.
Antibodies raised against progesterone with hormone-carrier protein bridges placed at four different carbon positions were used to compare the sensitivity and specificity of homologous and heterologous enzyme-hormone conjugates. All heterologous assays were at least twice as sensitive as the corresponding homologous assays. The best results were obtained by using antibodies against 7 alpha-carboxyethyl-thioether-progesterone with 6 beta-hemisuccinate-progesterone conjugate (or hemimaleate). The sensitivity with human sera was 0.25 ng ml-1 and, the highest crossreaction 10% with 5 beta-pregnane-3,20-dione, and reproducibility, recovery and accuracy were satisfactory. The correlation coefficient with radioimmunoassay in 103 human sera tested was r = 0.915. The assay was successfully applied for the diagnosis of pregnancy in dairy cattle. 相似文献
996.
997.
The long term sequelae of childhood sexual abuse include many symptoms commonly encountered in general practice settings. Guidelines to empathic history taking, comprehensive assessment, and an overview of management are presented, together with a contextual background. 相似文献
998.
The structure and properties of solid solutions and the chemical compound Gd2Zr2O7 in the Gd2O3 - ZrO2 system are investigated. Sintering of the initial mixture is studied and the optimum concentration of the stabilizing additive
is determined for the production of heat-resistant articles from granular mixtures based on ZrO2 stabilized by Gd2O3 and fired at 1750°C. Properties of specimens prepared by the technology developed are presented.
Translated from Ogneupory, No. 3, pp. 12 – 16, March, 1996. 相似文献
999.
A. I. Provotar 《Cybernetics and Systems Analysis》1993,29(6):857-866
Translated from Kibernetika i Sistemnyi Analiz, No. 6, pp. 89–99, November–December, 1993. 相似文献
1000.
An example of an opto-pneumatic detector's (OPD) frequency transfer function is presented for the development of an opto-pneumatic interface. The theoretical model is tested through experiments in the laboratory on a real OPD prototype. In this way many of the model's parameters are studied and evaluated, such as the dimensions of the gas chamber, the thickness of the absorbent body, and the load of the OPD. The results obtained are good and show the utility of the studies described here. 相似文献