Problem in Mortgage Loan on Housing and Its Countermeasure     

《保鲜与加工》2003,(4):95-98

  相似文献   

Study on Application of ''Design and Build'' Contract Mode     

WANG Jun-cai~  HONG Hong~  LIAO Qi-yun~ 《保鲜与加工》2003,(6):108-114

The 'Design and Build' contract mode is a new contract and managerial approach, to which more and more attention has been paid. Now it becomes the contracting tendency in the international construction market. In this paper, the basic theories and method of the 'Design and Build' mode are widely and systematically studied. It specifies the intention of the 'Design and Build'contract mode, existing problems and corresponding countermeasures as well as its developing direction.  相似文献   

淄博市发展玉米收获机械化的经验与启示     

刘占良  刘君梅 《农机化研究》2007,(6):213-215

玉米是我国的第二大粮食作物,但是玉米生产过程机械化水平较低,尤其是玉米收获环节机械化水平低,且总体上发展缓慢.因此,玉米收获机械化是我国北方玉米主产区农业机械化发展的重点.近年来,山东省玉米收获机械化出现快速发展势头,特别是山东省淄博市玉米收获机械化水平已经超过了50%,有些县区已经基本实现了玉米收获机械化.为此,从经济基础、农艺技术和农机技术基础、支持政策和农机管理等方面总结分析了淄博市发展玉米收获机械化的经验,并分析了全国玉米收获机械化发展所面临的农业生产工艺技术路线、农业技术装备体系及其农业机械化组织路线问题.在此基础上,提出了推进玉米收获机械化发展的措施.  相似文献   

基于“数字流域”的水利信息服务   总被引：2，自引：1，他引：2  

代君  纪昌明 《中国农村水利水电》2005,(8):19-21

探讨了流域水利信息服务在随流域数字化进程发展过程中,为了满足各类信息用户的需要而采用的信息服务模式。基于“数字流域”的水利信息服务既不同于传统的手工检索服务模式,也不仅仅是基于WEB的信息服务模式,它是基于由多种前沿技术共同支撑所建立的、以水利信息为主体的流域信息资源网,面向全流域各类水利信息用户的复杂多变的信息需求的新的服务模式。  相似文献   

无土栽培技术的发展状况及趋势   总被引：3，自引：0，他引：3  

孙霞 《中国农机化》2005,(6):47-50

近年来无土栽培以其优质、高产、高品质的特点,深受人们的关注.介绍了国内外无土栽培的发展状况,着重介绍了国内外无土栽培的栽培方式、自动化程度、营养液的调控和管理技术,并分析了国内无土栽培存在的问题及今后的发展方向.  相似文献   

Review on estimation of evapotranspiration from remote sensing data: From empirical to numerical modeling approaches   总被引：5，自引：0，他引：5  

Dominique Courault  Bernard Seguin  Albert Olioso 《Irrigation and Drainage Systems》2005,19(3-4):223-249

Different methods have been developed to estimate evapotranspiration from remote sensing data, from empirical approaches such as the simplified relationship to complex methods based on remote sensing data assimilation along with SVAT models. The simplified relationship has been applied from small spatial scale using airborne TIR images to continental scale with NOAA data. Assimilation procedures often require remote sensing data over different spectral domains to retrieve input parameters which characterize surface properties such as albedo, emissivity or Leaf Area Index. A brief review of these different approaches is presented, with a discussion about the main physical bases and assumptions of various models. The paper reports also some examples and results obtained over the experimental area of the Alpilles Reseda project, where various types of models have been applied to estimate surface fluxes from remote sensing data.  相似文献   

Inverse Modeling to Quantify Irrigation System Characteristics and Operational Management     

Amor V.M. Ines  Peter Droogers 《Irrigation and Drainage Systems》2002,16(3):233-252

Remotely sensed (RS) data is a major source to obtain spatialdata required for hydrological models. The challenge for thefuture is to obtain besides the more direct observable data(landcover, leaf area index, digital elevation model andevapotranspiration), non-visible data such as soilcharacteristics, groundwater depth and irrigation practices.In this study we have explore the option of using inversemodeling to obtain these non-RS-visible data. For a commandarea in Haryana, India, we applied for the 2000–2001 rabiseason a RS-GIS-combined inverse modeling approach to derivenon-RS-visible data required in the regional application ofhydrological models. A Genetic Algorithm loaded stochasticphysically based soil-water-atmosphere-plant model (SWAP) wasdeveloped for the inverse problem and used in the study. Theresults showed good agreement with the inventoried data suchas soil hydraulic properties, sowing dates, groundwaterdepths, irrigation practices and water quality. The deriveddata could be used to predict the state of the system at anytime in the cropping season, which can be used to evaluateoperational management strategies.  相似文献   

利用简易工况法对在用汽车排放检测之探讨     

郭常亮  鲍晓峰  刘汝成  王燕军  李维萍  高松 《农业装备与车辆工程》2007,(5):13-16

在用车尾气排放的治理和监管是中国城市大气环境改善的重点工作之一。利用典型在用车，对国家标准GB18285—2005规定的双怠速法、ASM法、VMAS法和IM195等在用车尾气排放检测方法进行了试验研究，探讨了ASM和VMAS两种检测方法的适用性。  相似文献   

奶牛养殖场粪污处理沼气工程技术与模式   总被引：9，自引：3，他引：9  

胡启春  宋立 《中国沼气》2005,23(4):22-25

本文综述了国内外奶牛养殖场沼气工程技术应用现状,分析了奶牛粪沼气发酵潜力和三种主要沼气发酵工艺的技术特点.  相似文献   

干旱区B/S模式水库调度系统设计     

刘兵  何新林  张伟  刘华梅  范翠玲  李坚 《中国农村水利水电》2007,(10):143-146

利用Visual Studio．NET的优良集成开发环境、采用SQL Server 2000作为B／S计算环境数据库服务器的分布式数据管理系统。针对干旱区水库调度的实际特点，选择了适合当地实际特点的预报、调度模型，考虑到该系统维护、升级的需要，系统采用组件技术，对各子系统进行功能分区，模块化处理。系统具备基本信息接收、存储和查询，洪水预报，水位预报，水库调度，成果管理和数据库管理等主要功能。系统界面简洁、友好，功能适用，方便操作。结合实例展示了系统的在干旱区的应用情况以及在进一步推广应用前景。  相似文献