影像导引肝脏恶性肿瘤多模态消融治疗技术专家共识

影像导引肝脏恶性肿瘤多模态消融治疗是以医学影像技术为导引，在冷冻消融与热消融交替转换过程中，通过对病灶区温度精准控制和消融过程定量规划，彻底破坏原位肿瘤细胞及其循环系统，同时最大程度释放活性肿瘤抗原，从而达到控制肝脏恶性肿瘤复发转移的目的。为规范肝脏恶性肿瘤多模态消融治疗技术操作，便于不同层级医院开展实施，确保医疗安全和临床疗效，中国抗癌协会肿瘤介入学专业委员会和上海市抗癌协会实体肿瘤聚焦诊疗专业委员会组织国内肿瘤治疗领域的多学科专家共同参与，认真讨论，最终达成本共识。     

Performance Analysis of Full-Duplex Vehicle-to-Vehicle Relay System over Double-Rayleigh Fading Channels

Mobile Networks and Applications - In this paper, we study the performance of a full-duplex (FD) relay system in vehicle-to-vehicle (V2V) communication. In this relay communication system, the...     

Sustainability of the four generations of biofuels – A review

Biofuel has emerged as an alternative source of energy to reduce the emissions of greenhouse gases in the atmosphere and combat global warming. Biofuels are classified into first, second, third and fourth generations. Each of the biofuel generations aims to meet the global energy demand while minimizing environmental impacts. Sustainability is defined as meeting the needs of the current generations without jeopardizing the needs of future generations. The aim of sustainability is to ensure continuous growth of the economy while protecting the environment and societal needs. Thus, this paper aims to evaluate the sustainability of these four generations of biofuels. The objectives are to compare the production of biofuel, the net greenhouse gases emissions, and energy efficiency. This study is important in providing information for the policymakers and researchers in the decision-making for the future development of green energy. Each of the biofuel generations shows different benefits and drawbacks. From this study, we conclude that the first generation biofuel has the highest biofuel production and energy efficiency, but is less effective in meeting the goal of reducing the greenhouse gases emission. The third generation biofuel shows the lowest net greenhouse gases emissions, allowing the reduction of greenhouse gases in the atmosphere. However, the energy required for the processing of the third generation biofuel is higher and, this makes it less environmentally friendly as fossil fuels are used to generate electricity. The third and fourth generation feedstocks are the potential sustainable source for the future production of biofuel. However, more studies need to be done to find an alternative low cost for biofuel production while increasing energy efficiency.     

本质安全便携式爆破网路检测仪设计

作者针对煤矿井下爆破工作者现场检测电雷管和电爆网路可靠性的需求,采用MSP430低功耗单片机设计的一款本安型便携式爆破网路检测仪,该仪器具有体积小、功耗低,便于携带、使用简单方便等特点。文中介绍了该仪器的硬件组成、本质安全性电路设计及整机低功耗的实现。     

碧江金楼

金楼又名赋鹤楼,原是碧江苏氏望族职方第中的藏书楼,早以精美的木雕装修饮誉海内外。因晚清重臣戴鸿慈之女嫁入苏家,故有“金屋藏娇”的传说。景区由金楼、泥楼、职方第大宅、后花园、亦渔遗塾以及围墙外的慕堂苏公祠、三兴大宅等古建筑组成。这些景点近年拂尘惊世,被专家和远近游客总结出古、博、精、真四大亮点,并已列为广东省文物保护单位。方圆几百米内,一座古建代表一个时代。这些建筑在功能上包括了街巷、祠堂、宅第、庭园、私塾、书斋;建筑风格则保留着干打垒、蠔壳墙、水磨砖、镬耳山墙等特色;装饰方面,木雕、砖雕、石刻、灰塑、壁…     

积极准备小型燃气热电联产系统应用

小型燃气热电联产具有发电效率高、能源能充分利用、良好的环保、投资成本低、建设时间短及运行简单等优点,可作为今后发展热电联产的首选。根据用户对热力产品的需求不同,联产系统可以有不同的组合形式。但在推广燃气热电联产时必须要有必要的技术准备以及相应的政策。     

沥青搅拌站除尘设备工作原理及改进方法

本文详细论述沥青搅拌站袋式除尘器工作原理，分析了影响该除尘器工作效率的因素，提出了改进方法，对同类型除尘系统的沥青搅拌站的改进和维修具有一定指导意义。     

探讨校园网设计

本文通过对校园网概念的探讨,澄清了对校园网的一些模糊认识,并展示了一个比较完整的校园网结构。通过对一所学校校园网的设计,提出了校园网设计中应注意的问题。     

依靠科技促进发展加快发展诚邀合作

上海于2003年获得园林城市称号.新一轮的城市绿化将按照建设现代化国际大都市的目标,以2010年上海承办世博会为契机,创造良好的生态环境,实现"城市,让生活更美好"的办会主题,为此,上海绿化管理局诚邀国内外专家参与上海的新一轮绿化科研工作.     

箱梁大吨位预应力的锚端应力分析

本文以三滩黄河连续刚构件大桥为例 ,比较系统地进行了张拉力为 371 0 7kN锚固区的应力分析。通过对 0 # 、1 1 # 块在纵向预应力 ( 1 91 5j1 5 2 4mm)作用下的大量三维有限元分析 ,研究了混凝土表面与纵向的应力变化规律、局部承压强度及抗裂性能