企业自主创新的内部综合管理模式

自主创新是影响企业核心竞争力和可持续发展的关键要素。本文对企业内部综合管理的角度分析了自主创新的综合管理模式,主要包括人力资本管理、组织结构管理、信息技术管理、企业文化管理和外部网络管理等要素。     

Waterway traffic analysis of the Chicago River and lock

The vessel-carrying capacity of the Chicago River, Illinois, is restricted by a lock. separating the river from Lake Michigan. Currently, vessels passing through the lock experience long delays during summer months. An investigation and analysis of this system determined that although the system is now generally operating below capacity, the peak periods during summer weekends do approach capacity, and the situation is likely to deteriorate in the future. In addition, the river and lock have safety and traffic conflict problems that need attention. Recommendations to mitigate these problems are described.     

DIG－DNA探针检测宫颈癌组织中人乳头瘤病毒6、11、16、18型DNA

用地高辛配基（Ｄｉｇｏｘｉｎｇｅｎｉｎ）分别标记，制备ＨＰＶ－６、ＨＰＶ－１１、ＨＰＶ－１６及ＨＰＶ－１８的ＤＮＡ探针，应用核酸杂交技术，对３７例宫颈癌活检组织ＤＮＡ作了检测，各型ＨＰＶＤＮＡ的检出率为：ＨＰＶ－６０％（０／３７）、ＨＰＶ－１１２．７（１／３７）、ＨＰＶ－１６６７．５％（２５／３７）、ＨＰＶ－１８１３．５％（５／３７），联合应用ＨＰＶ－１６和ＨＰＶ－１８探针共同检测结果为８１％（３０／３７）。结果显示：我国宫颈癌的发生与ＨＰＶ感染密切相关，联合应用高危型ＨＰＶ探针可提高检出率并可省时、简便。ＤＩＧ标记探针因具特异、敏感、安全和简便诸特点，宜推广应用。     

Performance Potential and Power Consumption of Slow-Active Suspension Systems with Preview

Two possible layouts of a slow-active suspension model are analysed. Optimal control laws for different actuator bandwidths and various amounts of road preview are generated, and estimates of power consumption are made. Higher bandwidth systems (10Hz) require less preview to obtain a given level of performance than those with a lower bandwidth (3Hz) but use more energy in doing so. Similar performance is available from the two systems considered, although the second uses considerably less energy to obtain that performance.     

中国沿海(散货)运输市场月评

本期沿海运输市场行情在煤炭、粮食运价持续上扬的推动下一路上行。11月14日，上海航运交易所发布的沿海（散货）运价指数报收于2281．12点，较上月同期上涨6．64％．综合运价指数再创历史新高。煤炭和粮食运价指数较上月继续上涨，成品油运价指数也略有上扬，原油运价指数基本保持平稳：     

基于DEA的港口集装箱码头效率分析

提高集装箱码头生产效率是港口提升市场竞争力的主要途径.对集装箱码头生产效率的有效分析,是集装箱码头提高生产效率的先决条件.本文论述了进行集装箱码头生产效率分析的必要性和重要性,介绍了现有港口效率评价方法,并阐述了其特点和弊端,根据集装箱码头具有不同量纲的多投入、多产出的特点,建立了基于数据包络分析的港口效率评价模型.通过对我国8家集装箱码头2003年几个重要的数据分析,建立了数据包络分析(DEA)模型并计算各港口的相对效率、规模收益、投入冗余量等指标,据此提出了相应的优化措施.     

浅论社会保障的利益激励机制及整合发展

本文阐述了建立社会保障机制的重要性及我国社会保障利益激励机制的建立途径。公平是社会保险制度的本质特征 ,而公平本身应该是保护与激励的统一 ,因此 ,社会保障制度就是兼顾保护与激励的公平 ,适度体现激励机制是现代社会保障制度发展的趋势     

Suboptimal Control Design of Active and Passive Suspensions Based on a Full Car Model

An optimal control design method is introduced and then applied to the optimum design of active and passive suspension systems. A basic three-dimensional 7-DOF car riding model subjected to four correlated random road inputs is considered. The design method is basically developed to allow arbitrary choice of sensors for various car state variables to be used for feedback control of each suspension unit. Previous studies show that full-state control laws and even some limited-state control laws often include feedback gains which are almost zero. Some other gains, although not zero, don't play an important role in improving the system performance measures. With the method proposed in this work, every suspension unit can have its own feedback measurements and the criterion function can be related to all state and control variables. Thus a large number of active and semi-active suspension systems with full- or limited-state control laws based on different measurement combination can be suggested, studied, and compared with each other. Instead of comparing these optimized active and semi-active suspension systems with a basic, passive suspension, the passive system itself is optimized with the same criterion. Simulations in the time domain and frequency analyses are performed, and comparisons are made among the systems in terms of r.m.s. car response measures and ISO riding comfort criterion.     

Biochemical composition of marine sediment from the eastern Weddell Sea (Antarctica): High nutritive value in a high benthic-biomass environment

Within the SCAR's international EASIZ programme, as part of the benthic–pelagic coupling experiment, grain size and organic matter contents in marine surface sediment were measured. Samples were taken during the austral autumn of 2000 from 3 regions in the eastern Weddell Sea: Kapp Norvegia, Four Seasons Bank, and Austasen.In general, sediments were fine sand with a grain size fraction < 200 μm representing more than 40% of the total weight. The sediments from Four Seasons Bank (64 to 107 m depth) were coarser than those from Austasen and Kapp Norvegia (209 to 480 m depth), presumably due to winnowing of fine sediment at shallow depths. Organic carbon (OC) content ranged from 0.25% to 1.2% and constituted 10% to 97% of the total carbon. The samples from Kapp Norvegia presented the highest OC values. Overall, protein (PRT), lipid (LPD), and carbohydrate (CHO) contents were similar to those in sediment from cold regions (e.g., the North Atlantic and the Ross Sea) but higher than those in sediment from other Antarctic and more septentrional regions (e.g., the Ross Sea and the Mediterranean). The difference within the Antarctic is explained through the local conditions in Terra Nova Bay and Kapp Norvegia. In the Antarctic, PRT and LPD carbon were the main contributors to the biopolymeric carbon (BPC). In the eastern Weddell Sea shelf, the BPC accounted for more than 90% of the OC in most of the samples. More than 82% of the total PRT, LPD, and CHO were present in the fraction < 200 μm. This work remarks the existence of sediments with a high nutritional value persistent several weeks after the spring–summer pulse of fresh organic matter. It is also highlighted the high potential availability of these sediments (due to its grain size) for the benthic communities inhabiting this high-latitude continental shelf.