徐州地区农村空间发展现状研究

在社会主义新农村建设的大环境下,农村地区空间环境的合理规划和综合整治工作的重要性日益突出.然而当前徐州地区农村以偏重近期效益的快速发展方式背后所潜在的问题尚未得到足够重视.从空间发展的角度对当地农村发展现状及今后发展策略进行了探讨分析,对以徐州为中心的苏北地区广大农村的科学发展提出了展望.     

Relationship between joint development in rock and coal seams in the southeastern margin of the Ordos basin简

To predict joint development characteristics of coal seams, joint characteristics of rock seams from 88 field stations were observed and comparisons were made between joint characteristics of coal and rock seams at 10 coal outcrops. Additionally, detailed joint measurements of underground coal seams were taken at two coal mines. This study investigated the effects of seam thickness, lithology, and structure on joint development and established the relationship between joint development of coal and rock seams, which allowed predictions of predominant joint densities for the No.5 coal seam in the southeastern margin of the Ordos basin. The results show that outcrop and underground coal seams exhibit the same joint systems as rock seams. The joints are mainly upright. Predominant joints strike 55° on average, followed by joints striking 320°. The joint density of the coal seam is 18.7–22.5 times that of the sandstone seam at the same thickness. The predominant joint density of the No.5 coal seam, controlled by the structure, is ∼4–20 joints per meter. Joint densities exhibit high values at intersecting areas of faults and folds and decrease values in structurally stable areas. The permeability increases exponentially with increasing density of the predominant joints.     

Mechanical properties and failure characteristics of fractured sandstone with grouting and anchorage简

Based on uniaxial compression experimental results on fractured sandstone with grouting and anchorage, we studied the strength and deformation properties, the failure model, crack formation and evolution laws of fractured sandstone under different conditions of anchorage. The experimental results show that the strength and elastic modulus of fractured sandstone with different fracture angles are significantly lower than those of intact sandstone. Compared with the fractured samples without anchorage, the peak strength, residual strength, peak and ultimate axial strain of fractured sandstone under different anchorage increase by 64.5–320.0%, 62.8–493.0%, and 31.6–181.4%, respectively. The number of bolts and degree of pre-stress has certain effects on the peak strength and failure model of fractured sandstone. The peak strength of fractured sandstone under different anchorage increases to some extent, and the failure model of fractured sandstone also transforms from tensile failure to tensile–shear mixed failure with the number of bolts. The pre-stress can restrain the formation and evolution process of tensile cracks, delay the failure process of fractured sandstone under anchorage and impel the transformation of failure model from brittle failure to plastic failure.     

高职院校辅导员素质结构分析与研究

基于问卷调查及统计分析,将高职院校辅导员素质分为：思政管理素质、职业指导和个人能力素质专业能力素质.在此基础上构建了象限模型,包括价值观维度、知识能力维度、社会认知维度和专业能力维度4个方面.其中价值观维度描述思想政治素质;知识能力维度描述个人综合素质;社会认知维度描述行业企业需求;专业能力维度描述专业技能要求.     

求解非线性方程的修正斯蒂芬森方法

提出了一种求解非线性方程的三阶收敛的修正斯蒂芬森方法.新的迭代公式每步仅需计算三次函数值,数值实验表明算法是有效的.     

四川盆地焦石坝地区五峰组-龙马溪组页岩层序地层划分及含气性预测——以JY-2井为例

四川盆地焦石坝地区上奥陶统五峰组—下志留统龙马溪组发育了一套富有机质泥页岩,是华南地区海相地层中的优质烃源岩之一,且分布面积广,页岩气开发工作成效显著,但对于这套细粒沉积物层序内部体系域的划分界面认识还不一致。根据岩性、岩相和测井参数对海平面响应的敏感变化特征,对JY-2井五峰组—龙马溪组的体系域和层序界面进行了识别和分析,分析高分辨率层序与页岩含气性的关系。结果表明：JY-2井五峰组—龙马溪组第1个三级层序的海侵体系域发育泥页岩气层,高位体系域发育泥页岩含气层和泥页岩气层;第2个三级层序的低位体系域发育泥页岩气层、含气层和泥页岩含气层。整体来看,泥页岩气层的甲烷和全烃含量是最高的,含气性最好,其次为含气层和泥页岩含气层。研究结果对于建立研究区内的高精度层序地层格架具有指导意义,同时将为四川盆地及其周缘五峰组—龙马溪组页岩气和世界其他地区海相页岩气勘探开发提供参考。     

基于多维度和多模态信息的视频描述方法

针对视频自动描述任务中的复杂信息表征问题,提出一种多维度和多模态视觉特征的提取和融合方法。首先通过迁移学习提取视频序列的静态和动态等多维度特征,并采用图像描述算法提取视频关键帧的语义信息,完成视频信息的特征表征;然后采用多层长短期记忆网络融合多维度和多模态信息,最终生成视频内容的语言描述。实验仿真表明,所提方法与目前已有方法相比,在视频自动描述任务中取得了较好的效果。     

一种基于异常传播分析的依赖性分析方法

在分析异常处理结构对程序依赖性分析影响的基础上,对传统的控制流图进行改进,提出了一种新的能够描述包括异常处理结构在内的函数内和函数间的C++程序的依赖性分析模型,并给出了相应的构造算法.该方法既克服了因忽略异常处理结构对程序依赖性的影响而造成分析结果不准确的不足,又有助于实现基于异常传播的程序依赖性分析的自动处理.最后,对这种依赖性分析方法在程序切片中的应用作了进一步的探讨.     

基于JADE的智能电子商务系统设计

传统电子商务系统无法让买卖双方就价格、性能、折扣等问题进行即时协商.利用智能体技术实现交易过程智能化是电子商务系统的发展趋势.JADE是基于Java语言的多智能体开发和运行环境,提供了对智能体的管理及通信控制.将JADE与Web访问技术结合起来,可以方便地构建智能电子商务系统,实现买方和卖方的交易协商.描述了JADE的工作原理,介绍了基于JADE平台设计并实现智能电子商务系统的基本方法,为智能电子商务的实现提供了一种技术途径.     

基于ASP实现Flash MX对SQL数据库的访问

Flash是目前常用的动态网页设计软件之一。而动态网页需要与数据库进行数据交互,但是Flash不能直接访问数据库。针对这种情况,本文介绍了如何利用Flash结合ASP技术方便地实现选煤厂实时生产数据网络发布。调试、运行结果证明该系统具有良好的稳定性和可靠性,并在工程中得以很好的应用。