多频电磁波测井数据的反演成像技术及应用

针对测井数据反演成像问题的不适应定性，采用了带不等式约束的正则化最小二乘迭代反演，模型响应的正演计算用有限元方法实现，模型响应对电阻率及介电常数的偏导数用格林函数和互换原理计算，对高低频电磁波测井数据的反演分两步进行，首先用低频数据得到电阻率的大致分布，再以此为初值，用高频电磁波数据同时反演电阻率和介电常数，通过对模型的数值模拟和某地热田1口井的实际资料的应用表明，电磁波测井数据的反演厉像能给出井周近旁介质的电性参数分布，而在离井较远的区域不能得到稳定可靠的解释结果，无论高频还是低频测井数据，要得到高质量的成像结果，工作频率的适当选择及接收器灵敏度的提高是至关重要的。     

列车对半圆拱形隧道中电磁波截止频率的影响

在空隧道中电磁波存在着截止频率，列车的存在改变了隧道的截面形状和尺寸，从而影响了电磁波的截止频率。应用有限元方法研究了煤矿井下巷道中列车的高度，宽度和位置对半圆拱形隧道电磁波截止频率的影响，其结果对铁路隧道，公安隧道等有限空间的无线通信也具有重要的意义。     

一种测定深部岩体地应力的新方法——钻孔局部壁面应力全解除法

简要回顾了基于钻孔进行地应力测量的几种方法，并指出了这些方法自身存在的局限性。提出了一种测定深部岩体地应力的新方法-钻孔局部壁面应力全解除法。该方法的明显优点是，不需要套钻，而且在确定地应力的主值及其方向时也不需要作任何假定。从理论上讲，该方法将不受测量深度的限制，对于深钻孔是普遍适用的，这将为大陆科学钻探计划中深部岩体地应力测量提供一种新途径。     

次生伽马能谱分析方法的实验研究

本文指出一种地化学闭合模型的热中子瞬发活化伽马分析方法，它是地球化学测井的核心技术，标准谱的获得，基于标准谱的加权最小二乘解谱方法、灵敏度刻度及地球化学闭合模型是这一方法的关键环节。     

螺栓球网架杆件在非节点横向荷载作用下承载力的有限元分析

运用ANSYS有限元程序 ,研究了在轴向力与非节点横向力共同作用下网架螺栓球节点杆件的受力性能 ,得出其应力分布状况及弹性极限承载力 ,并提出了螺栓球网架杆件在非节点横向力作用下承载力的计算公式。     

Drying of Chestnuts (Castanea sativa Mill.) after Osmotic Dehydration with Sucrose and Glucose Solutions

Chestnuts were dehydrated by using a combined method of osmotic dehydration followed by air drying. Samples were osmotically pretreated with sucrose (60% w/w) and glucose (56% w/w) for 8 h, air-dried at temperatures of 45, 55, and 65°C, at a relative humidity of 30% and at a velocity of 2.7 m·s^-1 and the experimental data of the drying kinetics were obtained. Whole samples were dried with different peelings: (a) removal of endocarp and pericarp (peeled) and (b) additionally the internal rough surface (cut). In all cases, cut chestnuts show greater drying rates than peeled samples, indicating that a significant mass transfer resistance in the layer nearest to the surface takes place. Peeled samples pretreated with sucrose solutions behave in a similar way to untreated samples. For the rest of the samples, the cut samples osmotically treated with sucrose solutions and all the samples treated with the glucose solution, the drying rates decrease during drying. Drying kinetics are successfully modeled by employing a diffusional model that takes the shrinkage into account. The effective coefficient of water diffusion was evaluated and correlated with temperature. The quality of the final product was monitored by color change. In spite of the fact that the total color difference is not modified by the osmotic treatment, the L*, a*, and b* color coordinates of cut samples treated with sucrose and glucose solutions do undergo changes; the L* and a* coordinates change less than the b*.     

南水北调中线干线工程数字文档管理信息系统设计与实现

结合南水北调中线干线工程文档一体化管理的需要，设计了数字文档管理信息系统的功能结构，包括文书管理、数字文件中心和数字档案馆3个部分，通过对文档资料的综合管理，能够极大提高文档信息的利用率和现代化管理程度。     

基于WebGIS的徐州市旅游信息系统设计与实现

介绍WebGIS的技术特点并在此基础上,提出利用JSP、分布式数据库等技术实现徐州市旅游信息系统,并介绍徐州市旅游信息系统的功能、特点及系统开发.     

加强和改进纪检监察工作的几点做法

加强和改进纪检监察工作，必须强化教育，落实党风廉政建设责任制；完善制度，建立有效的监督制约机制：正风肃纪，严肃查处违纪违法案件；围绕中心，开展效能监察工作；维护稳定，构建企业和谐稳定环境。     

Correlation study between standard plate count and flow cytometry for determination of raw milk total bacterial count

Milk samples were collected in the dry season ( n =  155) and in the rainy season ( n =  68) to establish a correlation between electronic flow cytometry and standard plate count for the determination of total bacterial count of raw milk. Results were expressed in individual bacterial count (ibc) and colony forming unit (cfu) for electronic flow cytometry (Bactocount) and standard plate count, respectively. The accuracy of Bactocount, denoted by the residual standard deviation ( s ( y,x )), was 0.309 log cfu/mL. The predictive interval of estimated values was broad and it is suggested that total bacterial count should be expressed in ibc without transformation to cfu.