排序方式： 共有136条查询结果，搜索用时 31 毫秒
91.
利用Java多线程以及线程间通信技术实现TCP/IP异步通信存在耦合度较高、模块可重用性低等弱点,采用中介者设计模式进行改进并设计TCP/IP客户端异步通信框架。在家畜养殖智能监控系统的通信模块中对该通信框架进行了验证。结果表明,采用该框架设计的通信模块响应及时、性能稳定。 相似文献
92.
经过实验,结果表明,策略的使用与学习者目标语水平息息相关,学习者的目标语水平会影响其交际策略的使用频率。与前人的研究结果有所不同的是,高水平者会比低水平者更频繁地使用策略;学习者的目标语水平也会影响其策略运用模式及其对策略类型的选择。笔者期望这一研究结果能对涉足交际策略教学领域的教学大纲制定者、教材编纂者及教师有所帮助。 相似文献
93.
盛晓蕾 《四川职业技术学院学报》2012,22(1):104-105,123
本文结合笔者自身多年的教学经验,对当前高职院校的计算机文化基础教学模式进行了分析和探讨。通过对教学任务、学生情况、课堂教学现状和考试特点进行分析,对当前的教学模式的不足之处进行了探讨,并提出了对教学模式的改革创新思路。 相似文献
94.
陈曦 《四川职业技术学院学报》2012,22(1):120-123
创业服务中心是创业服务体系的组织机构。随着国家经济的快速发展,经济体制改革的不断深化,扩大就业形势的需要,创业服务中心得到了快速发展。但目前我国职业院校创业服务中心发展刚处于起步阶段,没有形成良好的运作机制,缺乏有效激励与活力。本文分析了我国近些年来的创业活动,指出了职业院校创业服务中心面临的困境,并提出了建设性的建议。 相似文献
95.
薛玉萍 《新疆师范大学学报(哲学社会科学版)》2012,33(3):75-80
空间位移动词是指涉及空间位置及其变换的动词,它们具有语义和句法上的显著特点,由它们形成的简单句的基干句模各不相同,这些基干句模与相关句型间存有对应关系。 相似文献
96.
Electoral processes are complex and need to be secure, reliable, and auditable. It is then important to define ways to evaluate their functional completeness and correction as well as their security and reliability. Many solutions to specific aspects of voting have been proposed but we do not know of any holistic view of this process. We present a unified approach to elections based on a conceptual model built using software patterns. A set of analysis patterns describe the structure and management of an election. The patterns describe voter registration, ballot structure, election day management, voting process, and the complete election. A conceptual model is built from the analysis patterns and defines precisely the functional properties of such a system together with its security requirements. The conceptual model is defined using UML diagrams that can be extended or complemented with formal methods to make the system verifiable. We show how to continue to the design phase for this system. While the model will not apply exactly to all elections it can be used as a reference architecture for voting applications and to show explicitly the security considerations for these kind of events. It can also be used for existing elections to verify that they have the required security provisions. The model can also be used as a reference for researchers to integrate their solutions in the complete process. 相似文献
97.
The role that family communication patterns (FCPs), sex, and Facebook® use play in young adults' decisions to “friend” their parents on Facebook was examined, as well as whether students who friend parents adjust their privacy settings. Results from an online survey of college students (N = 189) indicated that young adults who friend their parents are more likely to be female and report higher conversation FCPs than those who do not friend their parents. In addition, young adults who adjust privacy settings after friending parents (25.3%) update their profiles more often and report lower conversation and higher conformity FCPs than young adults who do not adjust privacy settings. 相似文献
98.
Stacy L. Young 《Communication quarterly》2013,61(4):379-394
This study explored patterns and effects of communication apprehension and classroom apprehension in Nigerian classrooms. Significant correlation was found between student communication apprehension and student classroom apprehension. Analysis of variance revealed significant differences in classroom apprehension by class type, but no significant differences in communication apprehension by choice of occupation. Perceptions of academic performance were negatively associated with classroom apprehension scores. 相似文献
99.
《European Journal of Sport Science》2013,13(4):215-223
Abstract There is a need for a collective variable that captures the dynamics of team sports like soccer at match level. The centroid positions and surface areas of two soccer teams potentially describe the coordinated flow of attacking and defending in small-sided soccer games at team level. The aim of the present study was to identify an overall game pattern by establishing whether the proposed variables were linearly related between teams over the course of the game. In addition, we tried to identify patterns in the build-up of goals. A positive linear relation and a negative linear relation were hypothesized for the centroid positions and surface areas respectively. Finally, we hypothesized that deviations from these patterns are present in the build-up of goals. Ten young male elite soccer players (mean age 17.3, s=0.7) played three small-sided soccer games (4-a-side) of 8 minutes as part of their regular training routine. An innovative player tracking system, local position measurement (LPM), was used for obtaining player positions at 45 Hz per player. Pearson correlation coefficients were calculated to investigate the proposed linear relation of the key variables. Correlation coefficients indicate a strong positive linear relation during a whole game for the centroid position in all three games, with the strongest relation for the forward-backward direction (r>0.94). For 10 out of 19 goals a crossing of the centroids in this direction can be seen. No negative linear relation was found for surface area (?0.01 < r<0.07). From this study, we concluded that over the course of a whole small-sided game, the forward-backward motion of the centroids is most strongly linearly related. Furthermore, goals show a specific pattern in the forward-backward motion of the centroid. Therefore, surface area and particularly centroid position may provide a sound basis for a collective variable that captures the dynamics of attacking and defending in soccer at team level. Future research should develop these ideas further. 相似文献
100.
中国饮食所需耕地面积长时间尺度变化研究 总被引：1，自引：1，他引：0
本文揭示中国1961年-2007年间饮食所需耕地面积(LRF)的变化趋势及其影响要素.基于联合国粮农组织的统计数据,利用IPAT等式分析了1961年-2007年间中国粮食的饮食结构、单产、复种指数和人口数量对饮食所需耕地面积变化的影响.在1961年-2007年间中国总的LRF的变化曲线具有明显的阶段性,但总体上呈增长趋势.人均LRF在研究时段内呈现‘V’字形的变化趋势;人均每天热量、脂肪和蛋白质摄入量增长显著,同时,根据国家制定的热量、脂肪和蛋白质摄入量的饮食标准,饮食结构在研究时段内呈现出结构不均衡性;对LRF的影响要素分析表明,在19世纪80年代中期以前,单产是主要的影响因子,后期饮食结构的改善造成的影响超过了单产和人口的影响成为中国LRF变化的主要影响因子;在1961年-2007年之间,粮食自给能力比较稳定.随着中国经济和城市化水平的快速发展,人口饮食将转向获取富含蛋白质与脂肪的食物阶段,未来的饮食结构改善对粮食安全影响需要更多关注. 相似文献