一种快速、鲁棒的唇动检测与定位方法

提出了一种利用唇色在彩色空间分布信息和唇在人脸区域的几何分布特性进行快速、鲁棒的唇动检测与定位的方法。在该方法中,首先提出采用有约束的Fisher变换进行嘴唇图像增强;然后利用嘴唇在人脸区域的几何分布特性,来提高唇动定位的速度和准确性,唇动定位主要利用两种几何分布特性：（1）利用唇的区域面积和人脸的区域面积比值变化范围不大这一特性自适应确定区分唇色和肤色的值。（2）利用外唇参数与内唇参数之间有近似线性关系的假设,用外唇参数预测内唇参数,克服内唇定位经常陷于局部最小、定位不准的缺陷。实验证明,该唇动检测与定位系统无论从速度还是从可靠性、准确性都能满足应用的要求。     

微型计算机温室环境监控系统的研究

研究了以单片机为核心的温室环境微机监控系统,对其硬件构成和软件进行了设计。该系统能自动巡回检测温室的温度、湿度及光照等参数,且具有报警、控制及数据打印输出功能。     

PLC内部资源开发的探讨

利用PLC内部富余资源 ,实现对PLC外部输入控制电器的短路和开路故障检测。探讨了设计思路 ,给出了实际控制电器短路和开路故障的检测梯形图     

I became an attractive person in the virtual world: Users’ identification with virtual communities and avatars

A number of studies have examined virtual worlds, which can facilitate knowledge sharing, education, and enjoyment, among others. However, no study has provided an insightful research model for evaluating virtual worlds. This study suggests that users’ identification with virtual communities and avatars plays a critical role in the construction of attractive virtual worlds. The proposed model measures the level of the user’s identification with virtual communities, through which the user builds his or her trust in other community members. In addition, the study suggests that users’ identification with avatars is an important element of their satisfaction with virtual worlds. The results indicate that users’ identification with virtual communities as well as avatars can enhance their efficacy and trust and thus facilitate their sustained use of virtual services. The results have important theoretical and practical implications.     

A framework for joint community detection across multiple related networks

Community detection in networks is an active area of research with many practical applications. However, most of the early work in this area has focused on partitioning a single network or a bipartite graph into clusters/communities. With the rapid proliferation of online social media, it has become increasingly common for web users to have noticeable presence across multiple web sites. This raises the question whether it is possible to combine information from several networks to improve community detection. In this paper, we present a framework that identifies communities simultaneously across different networks and learns the correspondences between them. The framework is applicable to networks generated from multiple web sites as well as to those derived from heterogeneous nodes of the same web site. It also allows the incorporation of prior information about the potential relationships between the communities in different networks. Extensive experiments have been performed on both synthetic and real-life data sets to evaluate the effectiveness of our framework. Our results show superior performance of simultaneous community detection over three alternative methods, including normalized cut and matrix factorization on a single network or a bipartite graph.     

桅杆型光电探测系统总体可靠性分配与校核研究

对某桅杆型光电探测系统研制过程中的可靠性分析、分配与校核问题进行了研究。对载车型桅杆式光电系统总体的可靠性进行了合理分配,并对高架光电探测系统进行了半实物仿真成像试验,在满足0.01°探测精度的要求下对系统的可靠性进行了48h的不间断验证,得到系统最大方位误差0.008°的结果,认为本系统总体可靠性分配合理有效。     

科研合作网络的社团结构和中心节点研究

对发表于《ISI-SCIE（Science Citation Index Expanded）》上的PHARMACOLOGY＆PHARMACY学科的论文作者合作研究形成的一个复杂网络进行了研究。分析表明该合作网络共有40个子网络,其最大连通子网络节点的度服从幂律分布且有厚尾趋势,具有较小的平均路径长度,较大的聚类系数,存在少数关键节点,具有典型的小世界性和无标度性。并通过GN算法分析和挖掘了该最大连通子网络的社团结构,用度值、介数值和PAGERANK值等指标评价了网络的中心节点,揭示了合作网络中合作水平较高的科研团队和具有影响力的科学家。     

Industrial shape detecting system of cold rolling strip

A high-precision shape detecting system of cold rolling strip is developed to meet industrial application, which mainly consists of the shape detecting roller, the collecting ring, the digital signal processing (DSP) shape signal processing board and the shape control model. Based on the shape detecting principle, the shape detecting roller is designed with a new integral structure for improving the precision of shape detecting and avoiding scratching strip surface. Based on the DSP technology, the DSP shape signal processing circuit board is designed and embedded in the shape detecting system for the reliability and stability of shape signal processing. The shape detecting system was successfully used in Angang 1 250 mm HC 6-high reversible cold rolling mill. The precision of shape detecting is 0.2 I and the shape deviation is controlled within 6 I after the close loop shape control is input.     

开展党员双重管理的探索与实践

开展党员双重管理是油田加强社区党建的新尝试、新举措。进一步推动党员双重管理,一是要完善教育引导机制,增强党员参与的自觉性和主动性;二是要完善协调联动机制,增强党员参与工作的推动力和执行力;三是要完善组织运行机制,增强党员双重管理工作的规范性和有效性;四是要完善考核激励机制,增强党员双重管理工作的严肃性和持续性。     

VNC多媒体数据实时传输的研究与实现

针对VNC在传输多媒体数据时高带宽、低帧率的缺陷,在分析现有的编码方法和混合远程显示协议的基础上,提出了一种启发式方法一局部压缩法.该方法通过统计像素点的像素值变化频率,检测出桌面上的高频区域,并使用H.264编码该高频区域,对于桌面上的其它低频区域仍然采用VNC原有的编码方法.实验结果表明,该方法能够达到视频流畅播放所要求的帧率,同时能够有效地降低了网络带宽和CPU利用率.