Hierarchical Attention for Part-Aware Face Detection

International Journal of Computer Vision - Expressive representations for characterizing face appearances are essential for accurate face detection. Due to different poses, scales, illumination,...     

交流变频调速采用“△”脉宽调制的参数选择

本文在增量调制的原理基础上,对“△”脉宽调制的原理及实质进行了实验分析与研究。从理论上论证了“△”调制方案的合理性。通过实验对“△”调制所提供的满足变频调速要求的控制特性及设计思想的可行性进行了验证。着重对参数选择进行了实验分析,指出了参数选择的观点及其依据。按本文的观点选择参数,在工程应用中是切实可行的。     

一种简单的S参数去嵌入技术

介绍了在低成本夹具上，任意微带结构二端口网络S参数去嵌入的方法；该方法用于获取放大器模块的S参数，根据这些参数设计的C波段的放大器实测结果与仿真一致。     

浅谈液化石油气火灾的特点及消防措施

以某煤气公司液化石油气火灾事故为例,详细分析了液化石油气火灾的特点。并针对防火、安全管理、应急预案、扑救措施等问题提出了可借鉴的措施。     

VB环境下刀具数据库管理系统的开发

随着现代数控技术的不断发展和普遍应用,刀具数据库的开发与管理有了极其重要的意义和实际的研究价值.本文在VB环境下,利用开放式数据库互联(ODBC),通过数据库关联和程序设计完成了具有较高适应性的刀具数据库管理系统.通过链接、访问及维护刀具数据库,可有效加强对刀具的管理及合理利用.     

Data-driven hair segmentation with isomorphic manifold inference

Hair segmentation is challenging due to the diverse appearance, irregular region boundary and the influence of complex background. To deal with this problem, we propose a novel data-driven method, named Isomorphic Manifold Inference (IMI). The IMI method assumes the coarse probability map and the binary segmentation map as a couple of isomorphic manifolds and tries to learn hair specific priors from manually labeled training images. For an input image, firstly, the method calculates a coarse probability map. Then it exploits regression techniques to obtain the relationship between the coarse probability map of the test image and those of training images. Finally, this relationship, i.e., a coefficient set, is transferred to the binary segmentation maps and a soft segmentation of the test image will be achieved by a linear combination of those binary maps. Further, we employ this soft segmentation as a shape cue and integrate it with color and texture cues into a unified segmentation framework. A better segmentation is achieved by the Graph Cuts optimization. Extensive experiments are conducted to validate effectiveness of the IMI method, compare contributions of different cues and investigate the generalization of IMI method. The results strongly encourage our method.     

多孔陶瓷分离膜

多孔陶瓷膜由于其优良的耐高温、耐腐蚀、耐微生物侵蚀等性质，近年来被快速地应用于分离领域。本文介绍其制备方法、性能测定及应用前景。     

Bumpy Particle Adhesion and Removal in Turbulent Flows Including Electrostatic and Capillary Forces

The effect of electrostatic and capillary forces on bumpy particle adhesion and removal in turbulent flows is studied. We use the JKR theory and account for the increase of adhesion by capillary force. The effects of electrostatic forces and nonlinear hydrodynamic drag are included in the analyses. The criteria for incipient rolling and sliding detachments and electrostatic lifting removal are evaluated. A turbulence burst model is used for evaluating the peak air velocity near the substrate. The critical shear velocities for detaching particles of different sizes under different conditions are evaluated. The electric field strength needed for electrostatic removal of particles with different charges is also estimated. The results are compared with those obtained in the absence of the capillary force. Comparisons of the model predictions with the available experimental data are also presented.     

深化课程体系和教学内容改革加快基础化学教学实验中心建设

西南石油学院基础化学教学实验中心是经四川省高校第一批基础课教学实验示范中心之一.总结经过四年来的创建,本中心已做到:实验室环境、硬件设施一流;课堂教学改革成绩显著;实验教学改革别有天地;学生课外科技活动持续活跃;师资队伍建设和管理体制改革取得成效;发挥了省厅要求的"示范作用"、"辐射作用"、"带动作用",在省内外具有了一定知名度,达到了示范中心的建设目标.