排序方式： 共有147条查询结果，搜索用时 15 毫秒
91.
张文 《天津职业院校联合学报》2011,13(8):26-29
文章介绍了汽车尾气污染物的危害以及NOX的生成机理,从废气再循环技术、缸内直喷式燃烧技术、代用燃料、电子控制技术、催化还原技术等几个方面,对降低汽车尾气中NOX的排放技术进行了研究。 相似文献
92.
保定商会成立于1907年,在建立和发展的过程中,逐渐形成了如下特点:集官、军、商为一体;培育了富有地域特色的专业性市场;同天津商会独立、合作与依附并存的关系。 相似文献
93.
本文介绍了加热炉控制系统的设计,其中重点介绍了蓄热技术的原理和加热炉温度控制系统的设计。 相似文献
94.
目的探讨智能化可穿戴式能耗分析仪(IDEEA)在南京市成年人夜间行为能耗测定中的准确度。方法共选取受试者120人,佩戴IDEEA进入能量代谢舱进行11h的能耗测试,在此期间完成特定的活动。结果能耗结果进行配对样本T检验,结果显示MC(能量代谢舱)与IDEEA所测得的能耗结果存在显著性差异,但是绝对误差在5%左右。结论 IDEEA测量能耗误差率在可以接受的范围内,它提供了一个估算能耗的替代方法。所提供即时和累积的能耗数据可以用来估测一段时间范围内的人体活动能耗。 相似文献
95.
朱英 《华中师范大学学报(人文社会科学版)》2006,45(5):71-79
苏州商会作为商办的民间社团,在民国初期的一系列发展,可以说从一个侧面反映了近代中国民间社会从传统向现代的演变进入到新的历史阶段。其具体表现,不仅仅是苏州商会能够在辛亥革命后政体变更的新形势下,与时俱进地采取新的应对举措和发展措施,从而适应形势发展的需要,而且还不断完善自身的选举制度,使商会的选举与以往相比较更具有广泛性和民主性。此外,苏州商会还积极成立商事公断处等新的机构,在受理商事纠纷方面发挥了更为突出的作用,尤其值得重视的是在“五四运动”等反帝爱国运动中苏州商会的态度更加积极,所产生的作用和影响也更加显著。 相似文献
96.
无锡商会与1929年国民救国会被捣毁风潮 总被引：3，自引：0，他引：3
付海晏 《华中师范大学学报(人文社会科学版)》2006,45(5):88-94
1929年7月初,无锡县国民救国会因查扣日货事件与地方商人发生所谓救国会被捣毁风潮。救国会呈控地方商民大肆捣毁救国会,抢走被扣押之日货。据此,无锡县政府先后拘押两名地方商人。为营救俩人以及反对救国会查货,在请愿无果的情形下,无锡地方十三业宣布总罢市。最终,在无锡商会的调处下,无锡县政府答应了大部分请愿要求,罢市风潮得以平息。本文据有关资料,通过无锡国民救国会被捣毁风潮的梳理,揭示了反日运动中地方商民与国民救国会之间的矛盾冲突;而且通过对商会调处的分析,亦展现了在复杂背景下商会功能的实践。 相似文献
97.
陈黎丽 《泉州师范学院学报》2013,31(3):87-92
南音“四管全”、民乐四重奏以及欧洲室内乐四重奏等重奏形式,同样都以四件乐器演奏,其三者之间存在着某种内在联系和可比性。通过对南音“四管全”及欧洲室内乐四重奏由表及里的深入思考,试图从上述三者外在形态到音乐本体,对深层次同异关系及其文化意涵作初步探讨。 相似文献
98.
牛君 《石家庄职业技术学院学报》2013,25(4):13-16
介绍了自行设计的大行程压力试验机的机械结构、工作原理、测试系统的技术方案及其在塑料检查井剪切试验与荷载试验中的应用.它能有效地解决传统压力试验机试验空间小,调整慢,试验效率低,对大试样压力测量抗偏置能力差、误差大的问题. 相似文献
99.
Objective: To evaluate the prevalence of primary iris and/or ciliary body cysts in eyes with shallow anterior chamber and their effect on the narrowing of the anterior chamber angle. Methods: Among the general physical check-up population, subjects with shallow anterior chambers, as judged by van Herick technique, were recruited for further investigation. Ultrasound biomicroscope (UBM) was used to detect and measure the cysts located in the iris and/or ciliary body, the anterior chamber depth (ACD), the angle opening distance at 500 μm (AOD500), and the trabecular-iris angle (TIA). A-scan ultrasonography was used to measure the ocular biometry, including lens thickness, axial length, lens/axial length factor (LAF), and relative lens position (RLP). The effect of the cyst on narrowing the corresponding anterior chamber angle and the entire angle was evaluated by the UBM images, ocular biometry, and gonioscopic grading. The eye with unilateral cyst was compared with the eye without the cyst for further analysis. Results: Among the 727 subjects with shallow anterior chamber, primary iris and ciliary body cysts were detected in 250 (34.4%) patients; among them 96 (38.4%) patients showed unilateral single cyst, 21 (8.4%) patients had unilateral double cysts, and 42 (16.8%) patients manifested unilateral multiple and multi-quadrants cysts. Plateau iris configuration was found in 140 of 361 (38.8%) eyes with cysts. The mean size of total cysts was (0.6547±0.2319) mm. In evaluation of the effect of the cyst size and location on narrowing the corresponding angle to their position, the proportion of the cysts causing corresponding angle narrowing or closure among the cysts larger than 0.8 mm (113/121, 93.4%) was found to be significantly higher than that of the cysts smaller than 0.8 mm (373/801, 46.6%), and a significant higher proportion was also found in the cysts located at iridociliary sulcus (354/437, 81.0%) than in that at the pars plicata (131/484, 27.1%). In evaluating the effect of the cyst on the entire anterior chamber angle, the eyes with multiple and multi-quadrants cysts manifested significant narrowing of the entire anterior chamber angle as compared with the eyes without cysts, based on the data analysis in comparison of TIA, AOD500, and gonioscopic grading evaluation. The unilateral single or double cysts in the eyes had no significant effect on narrowing of anterior chamber angle as compared with eyes without cysts. The iris and/or ciliary body cysts did not seem to affect the axial length, ACD, lens thickness, RLP, LAF. Conclusions: The prevalence of primary iris and ciliary body cyst was 34.4% in the subjects with shallow anterior chamber. The cysts larger than 0.8 mm, locating at iridociliary sulcus, or multiple and extensive cysts were inclined to cause the angle narrowing or closure. 相似文献
100.
胡本春 《绵阳师范学院学报》2014,(4):141-145
商会是政企沟通不可或缺的桥梁和纽带。随着经济全球化程度的提高和政府职能的转变,商会的地位不断提升,外界对商会的期待也不断凸显,为此,新形势下加强商会组织建设已是当务之急。本文以A省M市商会组织建设为个案,通过M市商会组织建设的基本情况的调研,该市商会组织自身建设存在的问题,最后进一步分析加强商会组织自身建设的几点思考。通过该个案的分析,为商会组织的发展壮大提供一些可行的路径分析。 相似文献