利用两台沥青摊铺机摊铺基层在工程中的应用     

冯屹  易云辉 《嘉应学院学报》2000,18(6):59-62

本文对利用两台沥青摊铺机进行基层施工作业的工艺方案、技术措施、施工组织、施工质量、效益等方面的问题进行了讨论和分析,并较深入地对离析、标高、平整度等进行了评价。  相似文献   

PID环上二矩阵乘积的Moore—Penrose逆     

林冠军 《泉州师范学院学报》2000,18(4):15-18

在[5]结果的基础上,本得到非交换主理想整环上二矩阵乘积M－P逆的倒序律成立的若干个充要条件,并且还给出一组倒序律成立的充分条件。  相似文献   

英语情感动词的语义特点及句法逆向功能     

黄田  郭建红 《湖南城市学院学报》2000,21(3):99-101

英语情感动词是英语动词中的重要类别。它特点明显,功能突出,运用广泛,自成一体。把握好英语情感动词的语义特点及句法逆向功能对于学好英语是十分有益的。  相似文献   

大连与日本成年人皮褶厚度的比较   总被引：8，自引：0，他引：8  

王珍武 《大连大学学报》1999,20(4):100-103

通过测试大连男女背部、上臂、腹部、大腿四个部位的皮招厚度,观察不同年龄体脂肪分布的规律与特征,并与日本人体脂肪分布资料进行比较研究  相似文献   

健康中国背景下太极拳健身功效研究     

冯〓卫 《广州体育学院学报》2019,(1):87-90

新时代对健康提出了新的要求，怎样保持健康、如何促进健康已成为热点问题。随着国家“健康中国战略”的提出，太极拳作为一项民族的、传统的运动项目，其健身作用也被赋予了新的历史使命。研究主要以文献资料法，综述了国内外太极拳健身功效方面的文献。结果：（1）太极拳能改善心血管的功能；能改善呼吸机能；能改善人体的免疫机能；能增加人体的关节活动度；能增强人体的肌肉力量，能改善人体的平衡能力。（2）太极拳作为民族的、传统的运动项目，将会大力推动全民健康及健康中国战略的实施，为中国健康事业的发展贡献力量。推广好太极拳项目，发挥好太极拳作用，利用好太极拳的文化传播，使其在健康中国背景下大显身手。  相似文献   

The effect of inspiratory muscle fatigue on acid-base status and performance during race-paced middle-distance swimming     

Mitch Lomax  Jernej Kapus  Samuel Webb  Anton Ušaj 《Journal of sports sciences》2019,37(13):1499-1505

The aim of this study was to investigate the effect of pre-induced inspiratory muscle fatigue (IMF) on race-paced swimming and acid-base status. Twenty-one collegiate swimmers performed two discontinuous 400-m race-paced swims on separate days, with (IMF trial) and without (control trial) pre-induced IMF. Swimming characteristics, inspiratory and expiratory mouth pressures, and blood parameters were recorded. IMF and expiratory muscle fatigue (P < 0.05) were evident after both trials and swimming time was slower (P < 0.05) from 150-m following IMF inducement. Pre-induced IMF increased pH before the swim (P < 0.01) and reduced bicarbonate (P < 0.05) and the pressure of carbon dioxide (PCO₂) (P < 0.05). pH (P < 0.05), bicarbonate (P < 0.01) and PCO₂ (P < 0.05) were lower during swimming in the IMF trial. Blood lactate was similar before both trials (P > 0.05) but was higher (P < 0.01) in the IMF trial after swimming. Pre-induced IMF induced respiratory alkalosis, reduced bicarbonate buffering capacity and slowed swimming speed. Pre-induced and propulsion-induced IMF reflected metabolic acidosis arising from dual role breathing and propulsion muscle fatigue.  相似文献   

《水浒传》流传过程中对和谐社会的负面影响     

李贤民 《广东技术师范学院学报》2007,(11):34-37

《水浒传》由于其内容贴近百姓,所以流传甚广,对中国人产生的影响极大,因而包括由它所培养出来的“侠气”,与受它的感染而产生的“匪气”,都在所难免。我们应该以清醒的头脑,对《水浒传》中的梁山好汉的行为用现代的文明和法律的准绳去解读、分析,既要将其正面的东西传承下去,使我们优秀的传统文化发扬光大,又要清除其糟粕的东西,以利于和谐社会的构建。  相似文献   

反向Cauchy积分不等式的加强与推广   总被引：8，自引：0，他引：8  

乔希民 《渭南师范学院学报》2004,19(2):12-13

研究了反向Cauchy积分不等式的加强和推广形式，并用构造性方法给出了直观证明。  相似文献   

Relative age effect: implications for effective practice     

Georgios Andronikos  Adeboye Israel Elumaro  Tony Westbury  Russell J. J. Martindale 《Journal of sports sciences》2016,34(12):1124-1131

Physical and psychological differences related to birthdate amongst athletes of the same selection year have been characterised as the “relative age effects” (RAEs). RAEs have been identified in a variety of sports, both at youth and adult level, and are linked with dropout of athletes and a reduction of the talent pool. This study examined the existence, mechanisms and possible solutions to RAEs using qualitative methodology. Seven experts in the field of talent identification and development were interviewed. Inductive analysis of the data showed that, while there was mixed evidence for the existence of RAEs across sports, the eradication of RAEs was attributed to controllable features of the development environment. The factors reported included the structure of “categories” used to group athletes within the sport (e.g. age, weight, size, skills), recognition and prioritisation of long-term development over “short term win focus.” Education of relevant parties (e.g. coaches, scouts, clubs) about RAEs and the nature of “talent” within a long-term context was suggested, along with careful consideration of the structure of the development environment (e.g. delayed selection, provision for late developers, focus on skills not results, use of challenge). Implications for research and practice are discussed.  相似文献   

反向间接血凝法检测畜禽血清乙型肝炎表面抗原及其探讨     

邹叔和  李心坦  曹晋蓉  周建强 《安徽科技学院学报》1990,(1)

应用反向间接血凝检测畜禽血清中人类乙型肝炎表面抗原,结果各种畜禽血清均发现有阳性,且比率甚高(18.3-30.9％)。笔者试将受检血清分别经过HRBc吸收,抗HBs中和等方法处理,发现畜禽血清存在HRBc天然凝集素和与HBsAg不同的类似抗原,这些非特异性因素使血凝试验出现高比率的阳性,因此,在动物血清做反向间接血凝前,应设法排除非特异性因素、结果较为可靠。  相似文献