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热敏半导体器件中电位与温度满足的方程组,是一个椭圆-抛物耦合组,并带有混合边界条件。利用不动点定理可证明该问题解的存在性。 相似文献
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目的:观察腕踝针联合热敏灸治疗寒凝血瘀型原发性痛经的临床疗效。方法:将寒凝血瘀型原发性痛经患者60 例随机分为治疗组和对照组,每组各30 例。对照组进行热敏灸治疗,治疗组在对照组的基础上加用腕踝针治疗。比较2组综合疗效及视觉模拟评分量表(VAS)评分。结果:总有效率治疗组为96.67%(29/30),对照组为76.66%(23/30),组间比较,差异有统计学意义(P<0.05)。2组疼痛程度评分治疗前后组内比较及治疗后组间比较,差异均有统计学意义(P<0.05)。结论:腕踝针联合热敏灸治疗原发性痛经疗效显著,简便易行,值得推广应用。 相似文献
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介绍了国内外第一台矿物热敏参数测试仪研制的原理、应用范围和对一些金属矿物、半导体矿物的测试情况以及仪器在浙江、赣南等地区金矿找矿中的初步应用。 相似文献
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MA Qimin LUO Xia YU Zhigang 《中国海洋大学学报(英文版)》2007,6(3):231-236
To unambiguously identify spilled oils and to link them to the known sources are extremely important in settling questions of environmental impact and legal liability. The fate and behavior of spilled oils in the environment depend on a number of physicochemical and biological factors. This paper presents the results regarding changes in chemical composition of light crude oil during simulated short-term weathering based on natural environmental conditions. The results show that the saturated hydrocarbons of the light crude oil mainly distribute between n-C8 and n-C23 and the most abundant n-alkanes are found in the n-C10 to n-C16. The main chemical components of the light crude oil are n-alkanes and isoprenoids. The aromatic compounds are subordinate chemical components. Under the conditions of the weathering simulation experiment,n-alkanes less than n-C12,toluene and 1,3-dimethyl benzene are lost after 1 d weathering,the n-C13,n-C14,naphthalene and 2-methyl-naphthalene are lost on the fifth day of weathering,and n-C15 alkane components show certain weatherproof capability. The ratios n-C17/pristane and n-C18/phytane are unaltered and can be used to identify the source of the light crude oil during the first 8 d of weathering. After 21 d,the ratio pristine/phytane can not provide much information on the source of the spilled light crude oil. Triterpanes(m/z 191) as biomarker compounds of light crude oil are more valuable. 相似文献
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目的:观察益肠通秘汤联合热敏灸、结肠水疗治疗脾肾阳虚型功能性便秘的临床疗效。方法:将90 例脾肾阳虚型功能性便秘患者随机分为治疗组与对照组,每组各45 例。治疗组采用益肠通秘汤联合热敏灸、结肠水疗治疗,对照组单用结肠水疗治疗,观察2组的排便症状(排便顺畅情况、排便时间、排便不尽感、大便性质)与中医症状(腹胀、食少纳差、神疲乏力、畏寒肢冷)的改善程度,评价综合疗效。结果:总有效率治疗组为95.56%(43/45),对照组为77.78%(35/45),2组比较,差异有统计学意义(P<0.05)。治疗后2组各项排便症状评分、中医症状评分均较治疗前降低(P<0.05),且治疗组降低幅度大于对照组(P<0.01)。结论:益肠通秘汤联合热敏灸、结肠水疗能有效改善脾肾阳虚型功能性便秘患者的便秘症状,提高临床疗效,值得临床推广应用。 相似文献
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目的:观察腧穴热敏化后雷火灸治疗椎动脉型颈椎病痰浊中阻证的临床效果。方法:将66 例颈椎病痰浊中阻证患者随机分为2组,每组各33 例。治疗组探寻出热敏化穴位后予雷火灸艾条悬灸治疗,对照组予雷火灸艾条直接悬灸治疗,比较2组治疗前后的颈椎症状与功能、中医证候评分及血液流变学指标的变化,根据中医证候的变化评定证候疗效。结果:总有效率治疗组为93.94%(31/33),对照组为72.73%(24/33),2组比较,差异有统计学意义(P<0.05)。2组颈性眩晕症状与功能评估量表评分、中医证候评分治疗后及随访1个月均较治疗前改善,且治疗组均优于对照组(P<0.01或P<0.05);2组血液流变学指标治疗前后组内比较及治疗后组间比较,差异均有统计学意义(P<0.05)。结论:腧穴热敏化后雷火灸治疗颈椎病痰浊中阻证优于单纯雷火灸,值得临床推广。 相似文献