新能源汽车技术专业“1+X”课证融合思考

在《国家职业教育改革实施方案》当中,明确提出了开启"1+X"的证书制度,其主要目的是要利用把学历教育和技能培训进行有效融合,培养出符合时代需求的高素质技术技能人才。以新能源车技术专业作为实例,对"1+X"制度进行积极地探索,找到培养高品质应用型技术人才的新方式,从新能源汽车技术专业的课程内容、考核方式、师资力量等各方面进行探索,为"1+X"课证融合的有效开展寻找高效途径,从而提高人才的质量。     

Time-series analysis of remote-sensed chlorophyll and environmental factors in the Santa Monica–San Pedro Basin off Southern California

The time-series of remote-sensed surface chlorophyll concentration measured by SeaWiFS radiometer from September 1997 to December 2001 and the relevant hydrological and meteorological factors (remote-sensed sea surface temperature, atmospheric precipitation, air temperature and wind stress) in Santa Monica Bay and adjacent waters off southern California were analyzed using wavelet and cross-correlation statistical methods. All parameters exhibited evident seasonal patterns of variation. Wavelet analysis revealed salient long-term variations most evident in air temperature during El Niño 1997–1998 and in wind stress during La Niña 1998–1999. Short-period (<100 days) variations of remote-sensed chlorophyll biomass were mostly typical to spring seasons. Chlorophyll biomass was significantly correlated with air temperature and wind stress: an increase of chlorophyll biomass followed with 5–6-day time lag an increase of wind stress accompanied by a simultaneous decrease of air temperature. The mechanism of these variations was an intensification of phytoplankton growth resulting from the mixing of water column by wind stress and entrainment of nutrients into the euphotic layer.     

基于B/S结构的机车售后服务管理系统

文章简述了ActiveX组件模型结合ASP技术在Internet环境下实现基于Browser/Server结构的机车售后服务管理系统。该系统在ActiveX技术基础上通过ADO编程实现数据传输和访问,结合ASP和ActiveX控件技术实现动态发布和在线管理。     

C++编程实现外设与应用程序的实时通信

提出一种在Windows保护模式下,通过动态连接库(DLL)生成中断服务程序代码,实现外设与Windows应用程序实时通信的有效方法。     

Patterns in diversity and community structure of epipelagic copepods from the Brazil–Malvinas Confluence area, south-western Atlantic

Diversity and structure of epipelagic copepod communities were investigated using 70 zooplankton samples collected from the top 50 m of the Brazil–Malvinas Confluence area between 35° and 55°S. Biogeographic patterns were investigated using multivariate analysis. Biodiversity patterns were examined using different univariate indexes. Representatives of 35 species of copepods from 23 genera and 13 families were found. Two zones were delimited based on their copepod composition, one in the subtropical waters of the Brazil current, and the other in the subantarctic waters of the Malvinas current. Both environments displayed contrasting patterns of biodiversity depending upon which element is measured (regional species richness as well as mean point species richness were significantly higher in the subtropical group of stations, whereas taxonomic distinctness was significantly higher in the subantarctic community). Based on these contrasting results, we suggest the use of both kind of indexes when defining priority areas for conservation.     

SS7C客运电力机车性能综述

介绍了ＳＳ７ｃ型客运电力机车的主要设计思路、特性、技术参数等，对其牵引客运列车的性能进行了简要的分析。     

DF8B型机车逻辑控制单元设计

从DF8B LCU功能需求出发，介绍了MVB与CAN总线两种通信网络特点，并对其性能进行比较，重点是MVB方案的LCU功能、硬件系统组成及软件设计。DF8B LCU简化了机车线路，提高了系统可靠性，完全满足机车性能要求。     

基于多媒体时钟的定时控制

由于Windows平台图形界面的易操作，使得在各行各业得到迅速的普及。这在工业控制领域也不例外，但是由于Windows操作系统在大部分情况下是以队列形式工作的，使得在Windows下实现实时控制成为了难题。利用多媒体时钟可以很好地实现Windows实时控制。     

牙周炎患者红细胞免疫功能及发病机理研究

采用酵母菌花环试验对31例牙周炎患者红细胞免疫粘附功能、循环免疫复合物、补体C_3含量进行了检测,并与正常组进行了比较。结果显示:牙周炎患者红细胞膜免疫复合物及循环免疫复合物均升高,补体C_3含量降低,且皆与正常组有显著性差异。作者认为:免疫复合物在牙周炎发病机理中有一定的意义,牙周炎患者红细胞免疫对清除循环免疫复合物起着重要作用。     

带有改编能力限制的编组计划优化模型及算法

本文用一个非线性０－１规模模型，来描述带有改编能力限制的技术直达列车编组计划问题。能力约束增加了该问题的计算难度。这是一个ＮＰＣ问题。因此，获得一个全局最优解是困难的。本文用模拟退火算法解该问题。该算法可以以很高的概率获得全局最优解。文末列出了两个数值例子，并分别同了考虑和不考虑改编能车约束两种情况下的计算结果。