鄂尔多斯盆地东缘临兴区块煤系叠置含气系统及其兼容性

叠置含气系统及其兼容性是煤系多类型非常规天然气合采可行性判识基础。基于临兴区块地层压力、天然气地球化学及生产数据解译,划分了叠置独立含气系统,探讨了含气系统间兼容性。基于地层压力梯度差异认为目标层段至少存在7套独立含气系统;基于产层的天然气甲烷同位素差异,认为太2段、山2~山1段、盒8~盒6段、盒3段等4套层系互不连通;基于天然气生产曲线差异,识别出山西组与石盒子组为2套独立含气系统。综合将研究区自上而下划分为千1~千4段、千5段、盒1~4段、盒5~8段、山1~太1段、太1~太2、本1段及本2段等独立含气系统。提取了地层压力梯度、气层厚度、渗透率及可动水量等影响合采兼容性关键因素,采用最优分割分类方法,指出研究区含气系统兼容性最佳分类数为5~6类,千5段、盒1~4段、盒5~8段等3套叠置含气系统合采兼容性较好。     

小粒径油雾发生装置研制

针对现有的油雾发生装置油雾粒径(7~40 μm)不符合中国船级社《钢制海船入级规范》关于油雾发生装置油雾粒径不得超过5 μm的规范要求,研制了一种小粒径油雾发生装置。经测量验证:所研制的油雾发生装置油雾粒径可控制在5 μm以内，并能控制油雾浓度、雾化温度及油雾流量，可为油雾探测器研制提供平台试验条件。     

一例带电水冲洗触发的220kV避雷器爆炸事故分析

对一例220 kV金属氧化物避雷器在带电水冲洗后发生爆炸故障的原因进行了分析。通过对完好避雷器和故障避雷器进行解体和对比分析,发现故障避雷器下节顶部压力释放装置内部的密封胶圈发生凹陷变形。最后,对该类事故提出预防措施。     

Extending interior-point methods to nonlinear second-order cone programming: Application to finite-strain elastoplasticity

Interior-point methods (IPMs) are well suited for solving convex nonsmooth optimization problems which arise for instance in problems involving plasticity or contact conditions. This work attempts at extending their field of application to optimization problems involving either smooth but nonconvex or nonsmooth but convex objectives or constraints. A typical application for such kind of problems is finite-strain elastoplasticity which we address using a total Lagrangian formulation based on logarithmic strain measures. The proposed interior-point algorithm is implemented and tested on 3D examples involving plastic collapse and geometrical changes. Comparison with classical, Newton-Raphson/return mapping methods show that the IPM exhibits good computational performance, especially in terms of convergence robustness. Similar to what is observed for convex small-strain plasticity, the IPM is able to converge for much larger load steps than classical methods.     

Fuzzy Based Hybrid Focus Value Estimation for Multi Focus Image Fusion

Due to limited depth-of-field of digital single-lens reflex cameras, the scene content within a limited distance from the imaging plane remains in focus while other objects closer to or further away from the point of focus appear as blurred (out-of-focus) in the image. Multi-Focus Image Fusion can be used to reconstruct a fully focused image from two or more partially focused images of the same scene. In this paper, a new Fuzzy Based Hybrid Focus Measure (FBHFM) for multi-focus image fusion has been proposed. Optimal block size is very critical step for multi-focus image fusion. Particle Swarm Optimization (PSO) algorithm has been used to find optimal size of the block of the images for extraction of focus measure features. After finding optimal blocks, three focus measures Sum of Modified Laplacian, Gray Level Variance and Contrast Visibility has been extracted and combined these focus measures by using intelligent fuzzy technique. Fuzzy based hybrid intelligent focus values were estimated using contrast visibility measure to generate focused image. Different sets of multi-focus images have been used in detailed experimentation and compared the results with state-of-the-art existing techniques such as Genetic Algorithm (GA), Principal Component Analysis (PCA), Laplacian Pyramid discrete wavelet transform (DWT), and aDWT for image fusion. It has been found that proposed method performs well as compare to existing methods.

     

黄石市一门一西路南侧余家山高边坡整治技术

黄石市西塞山区属低山丘陵区,由于受地理环境的影响,人类工程活动(建房、建厂、市政设施和公路改建等)引发大量的高边坡,同时也给周边环境带来了负面影响,引发崩塌、滑坡等地质灾害。介绍黄石市一门一西路南侧余家山高边坡整治工程的设计与施工,提出该高边坡采用坡面整形、挂土工网喷砼、锚喷和预应力锚杆等综合治理方案,取得较好的成功经验,为该地区今后边坡工程的综合防治提供借鉴。     

预防煤矿瓦斯爆炸事故的措施

文章从煤矿瓦斯事故统计分析、事故原因分析、预防措施，对预防煤矿瓦斯事故进行了全面的探讨，得出只要严格按照“一通三防”的各项规定来施，重大事故是可以得到有效控制的。     

汽车盘刹片钢背外形测量机研制

汽车盘刹片钢背外形尺寸直接影响汽车的制动性能 ,利用坐标测量机的原理 ,浙江科技学院设计并制造一台能快速测量盘刹片钢背各相关尺寸的专用检测设备。该测量机可满足摩擦材料厂家对钢背外形尺寸质量的进货检验 ,又可为钢背生产厂家生产的钢背是否符合图纸要求提供出厂检验手段     

GPJ-96加压过滤机在临涣选煤厂的应用

介绍了GPJ-96加压过滤机的原理及其在临涣选煤厂的应用效果,分析了影响加压过滤工作效果的因素,总结了运行中存在的问题及常见故障处理方法。     

加快江西矿产资源产业循环经济发展的对策与建议

文章简要分析了江西省矿产资源开发利用的现状和存在的主要问题。认为要促进江西矿产资源产业和国民经济可持续发展,就必须大力发展循环经济,并根据实际情况提出了相应的对策建议。