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Search Results: 1 - 10 of 96078 matches for " 苏丽君 "
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澳门回归十周年居民主观幸福感的变化
The Change of Residents’ Subjective Well-Being after the Tenth Anniversary of Macao’s Handover
 [PDF]

, 陈俊,
Advances in Psychology (AP) , 2012, DOI: 10.12677/ap.2012.21001
Abstract: 2009年时逢澳门回归十周年和中华人民共和国成立六十周年的双庆日子。为了比较和分析澳门回归前后澳门居民的主观幸福感,我们采用自编问卷和总体幸福感量表(GWBS),对450名澳门居民进行问卷调查,并从性别、年龄、婚姻状况、宗教信仰、文化程度、月收入六个方面进行比较分析。结果发现:无论在六种人口学变量上,在GWBS总体上,还是在GWBS的六个维度(对生活的满足和兴趣,对健康的担心、精力、忧郁或愉快的心境、对情感和行为的控制、松弛和紧张)上,澳门回归后,居民的幸福感均较回归前有显著提高。我们认为该结果是由于澳门回归后,在经济、政治方面的飞速发展、国际地位的提高以及治安的改进等原因促成的。
On December 20, 1999, China resumed the exercise of sovereignty over Macao. From then on, Macao entered a completely new era in its history, and that brought changes to residents’ subject well-being. In order to analyze and compare this change when before and after Macao’s handover, we investigated 450 residents in Macao with General Well-Being Schedule (GWBS) and Self-Compiled Questionnaire, and ana- lyzed from aspects of sex, age, religion, marriage states, school record, and monthly income. The results showed a significantly higher Subject well-being after Macao’s return no matter on 6 demographic variables, on GWBS overall or on 6 dimensions of GWBS (Satisfaction and interest toward life, worry about health, energy, mind of depression or delight, the control of emotion and behavior, relax or tension). We do think that the changes of residents’ subject well-being should be attributed to political system’s creation, economic took-off, better public security, a higher international status, and so on.
血清肌钙蛋白T对判断肺栓塞预后的临床意义
,彦风,TakeshiIsobe
宁夏医科大学学报 , 2009,
Abstract: 为探讨血清肌钙蛋白T(cTnT)对判断肺栓塞预后的临床意义,采用酶联免疫吸附分析法检测28例肺栓塞患者和28例同期非肺栓塞患者血清cTnT浓度。结果肺栓塞组患者血清cTnT浓度(0.28±0.13)ng/mL明显高于非肺栓塞组患者(0.04±0.01)ng/mL,肺栓塞组中死亡患者血清cTnT浓度(0.36±0.22)ng/mL高于非死亡患者(0.17±0.02)ng/mL(P<0.01)。测定血清cTnT对判断肺栓塞预后具有一定的临床意义。
自适应调制编码系统门限调整算法研究
,,陈美娅,,杨大成
北京邮电大学学报 , 2006, DOI: 10.13190/jbupt.200604.49.fanch
Abstract: 从保证自适应编码调制系统目标误帧率的角度出发,提出了一种保证实时误帧率的优化门限值算法(ITA)。此算法根据移动台反馈的信道估计值和上一帧数据的对错,实时调整每种调制编码方式的下门限。数值和链路仿真表明,ITA比3GPP提案中的门限调整方法能更稳定地保证系统误帧率;当反馈时延超过10ms时,ITA算法采用自回归(AR)模型进行信道预测比采用瞬时值预测,有更高的系统吞吐量和更稳定的误帧率性能。
Ni/SiO2催化剂的合成及其甘油氢解制1,2-丙二醇性能
石国军,金凯,,沈俭一
分子催化 , 2015,
Abstract: 以硝酸镍和偏硅酸钠为原料,采用并流共沉淀和氢气还原-钝化的方法制备了Ni/SiO2催化剂,通过BET、XRD、H2-TPD、NH3-TPD、HRTEM、XPS等手段对催化剂的理化性质进行了表征,发现合成得到的Ni/SiO2催化剂具有良好的织构性质、极高的金属分散度和活性比表面积,并且对甘油氢解生成1,2-丙二醇的反应表现出良好的活性和选择性。研究还考察了催化剂的镍硅比、反应停留时间、反应压力、甘油浓度对甘油氢解性能的影响,发现在镍硅比为0.5,反应停留时间为2 h,反应压力为5.5 MPa,甘油浓度为10%的条件下,甘油的单程转化率达78.8%,1,2-丙二醇的选择性高达92.9%
花绒寄甲辨别光肩星天牛蛀食不同树木所产生虫粪的挥发性化学信号
魏建荣**,,
生态学杂志 , 2015,
Abstract: ?光肩星天牛(anoplophoraglabripennis)危害多种阔叶树种,曾对“三北”防护林造成重大灾害。花绒寄甲(dastarcushelophoroides)对光肩星天牛取食不同寄主树如杨树、柳树、榆树和槭树后排出的虫粪表现出不同的趋向性,但对槭树的虫粪未表现出趋向性。为了阐明花绒寄甲成虫差异性趋向选择机制,我们采用动态顶空吸附技术收集不同寄主树的虫粪挥发物,利用气相色谱、固相微萃取气相色谱质联仪对虫粪中单萜、倍半萜进行定性定量分析。结果表明,萜烯类是虫粪挥发物的主要成分,且源自不同寄主树木虫粪的萜烯释放量相差显著。检测到的所有化合物中,只有α-古巴烯在源于复叶槭的光肩星天牛虫粪中含量极微,而在源于其他5种寄主树的虫粪中含量均较大。在进一步的y型嗅觉仪生测实验中,α-古巴烯能够显著地吸引花绒寄甲。α-古巴烯可能是花绒寄甲辨别取食不同寄主树的光肩星天牛虫粪的重要信号化合物。?
helmholtz方程的楔形基无网格法
秦新强,,,王志刚
武汉理工大学学报 , 2010,
Abstract: ?将gauss楔形基函数与配点法相结合构造了helmholtz方程的楔形基无网格法,并证明了解的存在唯一性。数值结果表明该算法可行且计算简单。
sci收录的传统医学期刊介绍
范为宇,大明,
中国中医药信息杂志 , 2010, DOI: 10.3969/j.issn.1005-5304.2010.07.054
Abstract:
长期太极拳和慢跑锻炼对侧向突发干扰下老年男性神经肌肉反应时和肌电达峰值时间影响
王少,,李静先,徐冬青
- , 2018,
Abstract: 目的 比较长期太极拳和慢跑锻炼对老年男性突发侧向姿势干扰下神经肌肉反应时和肌电达峰值时间的差异,探索提高老年男性侧向姿势挑战下神经肌肉反应和肌肉收缩效率的有效锻炼方式。方法 利用足底水平干扰触发平台对年轻男性、无规律锻炼的老年男性、长期慢跑锻炼的老年男性、长期太极拳锻炼的老年男性进行突发侧向姿势干扰。表面肌电测试和分析系统用于收集腓骨长肌、胫骨前肌、臀中肌和竖脊肌的肌电信号。结果 突发侧向干扰下,无规律锻炼老年男性腓骨长肌、胫骨前肌和臀中肌的神经肌肉反应时明显地慢于年轻男性,长期太极拳锻炼老年男性胫骨前肌和竖脊肌的神经肌肉反应明显地快于老年对照组;年轻男性腓骨长肌、胫骨前肌和臀中肌的收缩速度明显地快于3组老年人。结论 长期太极拳锻炼可以使老年男性踝关节和躯干肌的神经肌肉反应更加迅速以应对侧向的姿势挑战,而对于提高老年男性肌肉收缩效率的效果不明显。
Objective To compare the differences in long-term jogging and Tai Chi in terms of neuromuscular latency and time to peak of surface electromyography (EMG) in older males during lateral sudden perturbation. In addition, an effective means to enhance neuromuscular response and muscle contraction efficiency of older males during lateral postural challenges was investigated. Methods Postural reactions of young males, older sedentary male controls (without regular exercises), older male joggers (with long-term jogging practice), and older male Tai Chi participants (with long-term Tai Chi practice) were evoked by means of a sudden unpredictable lateral translation platform. Surface EMG signals of peroneus longus, anterior tibialis, gluteus medius, and erector spinae were collected by an EMG detection and analysis system. Results The latencies of peroneus longus, anterior tibialis, and gluteus medius were delayed in the older sedentary male controls compared with those in young males. The neuromuscular reactions of anterior tibialis and erector spinae in older Tai Chi male participants were faster than those of older sedentary male controls. The contraction speeds of peroneus longus, anterior tibialis, and gluteus medius in young males were higher than those in three older groups during sudden lateral perturbations. Conclusions Long-term Tai Chi practice can enhance the responses of ankle and trunk muscles of older males during lateral postural challenges, but it has little effect on the muscle contraction efficiency of older males.
天山北坡经济带棉花播期对气候变暖的响应
只娟,张山清,徐文修**,田彦,张娜,
应用生态学报 , 2015,
Abstract: 利用1971—2010年天山北坡经济带棉区11个代表站的气象资料,采用气候倾向率、t检验和idw插值方法,分析了棉区3月下旬至4月下旬各旬平均气温和≥12℃初日的时空变化对棉花播期的影响.结果表明:研究期间,天山北坡经济带3月下旬、4月上、中、下旬平均气温分别以0.8、0.5、0.1和0.5℃·(10a)-1的倾向率呈增加趋势,但是≥12℃初日却以-0.5d·(10a)-1的倾向率呈提前趋势.各气象要素均在20世纪90年代发生突变,突变年后3月下旬、4月上、中、下旬平均气温依次增加2.5、1.9、1.1和1.5℃,分别达到7.2、10.0、13.2和15.6℃.3月下旬至4月下旬各旬平均气温的高值区普遍位于天山北坡东部棉花主产区的乌苏市、沙湾县和玛纳斯县站点周围,而低值区基本在东部的乌鲁木齐市附近.≥12℃初日的空间分布具有地区差异性,研究期间,初日日序较早的区域由精河县向西扩展到棉花主产区玛纳斯县周围,而日序较晚的区域从乌鲁木齐市以南的大部区域缩小至乌鲁木齐市周围.随着突变年后≥12℃初日逐年提前,大部县市棉花适宜播期在4月22—28日,采用地膜播种可使适宜播期提前至4月15—21日.
北疆农业热量资源时空变化及其对熟制的影响研究
Spatial-temporal variation of agricultural-heat resources and its impacts on multiple cropping in the North Area of Xinjiang

田彦,张山清,徐文修,只娟,
- , 2016, DOI: 10.7606/j.issn.1000-7601.2016.05.35
Abstract: 利用1961—2012年北疆48个代表站的年平均气温、霜冻期和≥10℃积温气象资料,采用气候倾向率、Mann-Kendall检验和ArcGIS中反距离权重插值等方法分析了北疆各县市农业热量资源的时空变化及其对熟制的影响。结果表明,近52年北疆年平均气温、霜冻期和≥10℃积温分别以0.36 ℃·10a-1、4.7 d·10a-1和80.66 ℃·d·10a-1的倾向率呈增加及延长趋势,其中塔城地区、伊犁河谷和阿勒泰地区较其它地区增温明显。各气象要素均在20世纪80年代之后发生突变,突变年后农业热量资源增加明显,作物熟制从仅满足一年一熟逐渐向多熟制发展,表现为,突变后一年三熟的地区较之前以吐鲁番市为中心向周边地区扩大,一年二熟的地区扩大到精河县-克拉玛依市沿线以东,克拉玛依-奇台-鄯善沿线以南天山以北的大部分地区和伊犁河谷西部以及哈密市周边地区,而二年三熟地区增加较小,一年一熟的县市呈继续向高纬度地区减少的趋势变化。
Based on the annual mean temperature, frost-free period and accumulated temperature ≥10℃ from 48 meteorological stations in the north area of Xinjiang from 1961 to 2012, the spatial-temporal variation of agricultural-heat resources and its impact on multiple cropping was analyzed using linear regressions, Mann-Kendall test and Inverse Distance Weighted method. The results showed that the annual mean temperature, daily meteorological data in frostless period and accumulated temperature ≥10℃ were increased by 0.36℃·10a-1, 80.66℃·d·10a-1 and 4.7d·10a-1 (P<0.01) from 1961 to 2012, respectively. They were increased more obviously in Tacheng, Ili River Valley and Altai than others. Effects of the heat resource became enhanced. The cropping pattern in the North Area of Xinjiang changed from one crop per year to multiple crops per year after 1980s, which could be demonstrated by the expansion of the area with three crops per year from the central area to the surrounding areas in Tulufan after the year of abrupt changes. The area of two crops per year was expanded to east of Jinghe-Karamay, most north areas of Karamay-Qitai-hanshan and South Tianshan, west of Ili River Valley and surrounding areas near Hami City. The integrated heat resources meeting the requirements of three crops per two years were increased slowly, and counties with one crop per year continued to displaying a decreasing variation trend toward high latitudes.
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