济阳坳陷古潜山油气藏体系及勘探技术

古潜山油气藏分布规律严格受构造带控制,断陷盆地不同构造带及其演化特点,决定了不同构造部位具有不同的古潜山圈闭体系和油气藏形成条件,济阳坳陷“古潜山”圈闭体系按二级构造带可划分为高潜山油气藏体系,中潜山油气藏体系和低潜山油气藏体系,其勘探程序依次为：区域构造带研究,确定石潜山展布区;潜山构造特征研究,落实潜山顶面及内幕储层构造形态;油气源及油气运聚分析,落实潜山油气藏形成类型,有利储集层预测,利用地震储层预测技术寻找有利储集相带;综合分析,评价潜山油气藏勘探潜力和规模,设计探井,通过对济阳坳陷潜山油气藏进行体系的划分和勘探技术与方法的优化,近期在低潜山的车3,中潜山的CBG4和CB30,高潜山带的广饶潜山的勘探中取得了突破。     

Deterministic Time-Varying Packet Fair Queueing for Integrated Services Networks

In integrated services networks, the provision of Quality of Service (QoS) guarantees depends critically upon the scheduling algorithm employed at the network layer. In this work we review fundamental results on scheduling, and we focus on Packet Fair Queueing (PFQ) algorithms, which have been proposed for QoS wireline-wireless networking. The basic notion in PFQ is that the bandwidth allocated to a session is proportional to a positive weight _i . Because of the fixed weight assignment, the inherent in PFQ delay-bandwidth coupling imposes limitations on the range of QoS that can be supported. We develop PFQ with deterministic time-varying weight assignments, and we propose a low-overhead algorithm capable of supporting arbitrary piecewise linear service curves which achieve delay-bandwidth decoupling. Unlike existing service-curve based algorithms, our time-varying PFQ scheme does not exhibit the punishment phenomenon, and allows sessions to exploit the extra bandwidth in under-loaded networks.     

High-Selectivity Switched-Capacitor Bandpass Filter with Quasi-Continuous Quality Factor Tunability

This paper describes the design and implementation of a second-order switched-capacitor (SC) bandpass (BP) filter with very wide quality factor (Q) programmability range. The filter selectivity is digitally programmed by varying the effective sampling frequency of an SC branch, without modifying any capacitor value. The proposed approach allows a quasi-continuous Q-factor tunability avoiding, in principle, the inherent quantization error associated to any traditional programming technique. Automatic Q-factor tuning is performed by using a scheme based on an amplitude-locking loop approach. Experimental results obtained from a 0.8-m CMOS integrated prototype demonstrate the versatility of the proposed technique for high-Q SC BP filters.     

Exploring networks with traceroute-like probes: Theory and simulations

Mapping the Internet generally consists in sampling the network from a limited set of sources by using traceroute-like probes. This methodology, akin to the merging of different spanning trees to a set of destination, has been argued to introduce uncontrolled sampling biases that might produce statistical properties of the sampled graph which sharply differ from the original ones. In this paper, we explore these biases and provide a statistical analysis of their origin. We derive an analytical approximation for the probability of edge and vertex detection that exploits the role of the number of sources and targets and allows us to relate the global topological properties of the underlying network with the statistical accuracy of the sampled graph. In particular, we find that the edge and vertex detection probability depends on the betweenness centrality of each element. This allows us to show that shortest path routed sampling provides a better characterization of underlying graphs with broad distributions of connectivity. We complement the analytical discussion with a throughout numerical investigation of simulated mapping strategies in network models with different topologies. We show that sampled graphs provide a fair qualitative characterization of the statistical properties of the original networks in a fair range of different strategies and exploration parameters. Moreover, we characterize the level of redundancy and completeness of the exploration process as a function of the topological properties of the network. Finally, we study numerically how the fraction of vertices and edges discovered in the sampled graph depends on the particular deployements of probing sources. The results might hint the steps toward more efficient mapping strategies.     

LED‐backlight feedback control system with integrated amorphous‐silicon color sensor on an LCD panel

Abstract— Thin‐film‐transistor liquid‐crystal displays (TFT‐LCDs) have the largest market share of all digital flat‐panel displays. An LCD backlighting system employing a three‐color red‐green‐blue light‐emitting diode (RGB‐LED) array is very attractive, considering its wide color gamut, tunable white point, high dimming ratio, long lifetime, and environmental compatibility. But the high‐intensity LED has problems with thermal stability and degradation of brightness over time. Color and white luminance levels are not stable over a wide range of temperature due to inherent long‐term aging characteristics. In order to minimize color point and brightness differences over time, optical feedback control is the key technology for any LED‐backlight system. In this paper, the feasibility of an optical color‐sensing feedback system for an LED backlight by integrating the amorphous‐silicon (a‐Si) color sensor onto the LCD panel will be presented. To minimize the photoconductivity degradation of a‐Si, a new laser exposure treatment has been applied. The integrated color‐sensor optical‐feedback‐controlled LED‐backlight system minimized the color variation to less than 0.008 Δu'v' (CIE1976) compared to 0.025 for an open‐loop system over the temperature range of 42–76°C.     

异地协同产品开发系统中资源选择策略研究

全球经济一体化使得企业之间必须建立动态联盟，实现异地协同产品开发．才能抓住快速多变的市场机遇。本文论述了异地协同产品开发的协议过程，并针对签约结点的选择提出了综合能力分析方法模型。这种综合能力评比的方法．为资源的合理选择提供了有效的策略。     

信息集成中松耦合组织机制研究

信息集成系统中关键问题是打破传统应用系统与数据紧密绑定的现象,使系统具有灵活性,从而使系统能够快速适应需求的变化。在对常见集成模式的分析研究基础上,做了适当改进,构造了一种业务逻辑处理单元之间的松耦合的组织机制。从而使集成系统具有良好的适应性、可调整性、可扩展性、可配置性。     

分布式棒线材轧制生产线在线生产调度系统

在分析棒线材生产作业计划特点的基础上，建立了精轧工序轧制批量调度的数学模型，其中考虑了轧机的维护约束等实际应用约束，采用混合局部搜索的自适应遗传算法进行求解，给出了基于多智能体系统（MAS）的分布式在线生产调度系统的总体结构，描述了进化计算、专家系统、启发式规则和人机交互相结合的集成化实现方法．实际运行结果表明，该系统各项功能运行良好，可快速编制出接近最优的生产调度计划，调度质量得到很大地改进．     

抗共振反射集成光学传感器的研究进展

抗共振反射光波导(ARROW)具有与传统光波导所不同的传播特性。利用覆盖层的抗共振反射性质,ARROW传播单模、高阶模被泄漏到基体。基于折射率的变化,抗共振反射传感器对物理量、化学量和生物分子间的相互作用有很高的敏感性。介绍了ARROW的结构、传感器的工作原理以及最新研究进展。由于可采用CMOS工艺制作波导,且能与光探测器在一块集成,抗共振反射传感器将具有广阔的应用前景。