科学软件网提供的软件覆盖各个学科,软件数量达1000余款,满足各高校和企事业单位的科研需求。此外,科学软件网还提供软件培训和研讨会服务,目前视频课程达68门,涵盖34款软件。
HYDRUS可执行Marquardt-Levenberg类型参数估计技术为选定的土壤进行水力逆估计或溶质运移以及测量瞬态或稳态流和运移数据(仅在2本中)。此过程允许估计几个未知的参数,如观察到的水含量、压头、浓度或瞬时或累积边界通量(如渗透或流出数据)。额外的保留或水力传导率数据以及约束优化的参数补偿函数,约束优化的参数保持在可行域(贝叶斯估计),可包含在参数估计过程中。
一个新的模块模拟地下水流人工湿地的生化转化和降解过程,此模块是为HYDRUS 的二维应用开发的(2005年的Langergraber和Simunek,2009年的Langergraber et al)。 这个模块认为大量的物理、化学和生物过程活跃在湿地,包括生物化学降解和转化过程三组分的**物质(易降解、慢慢可生物降解和惰性),四氮的化合物(铵、亚硝酸盐、硝酸盐、和双氮)、无机磷、异养和自养微生物,溶氧和/或硫,他们同时活跃而且相互影响。
科学软件网是一个以引进国外科研软件,提供软件服务的营业,由天演融智软件有限公司创办,旨在为国内高校、科研院所和以研发为主的企业事业单位提供的科研软件及相关软件服务。截止目前,科学软件网已获得数百家国际软件公司正式授权,代理销售科研软件达一千余种,软件涵盖领域包括经管,仿真,地球地理,生物化学,工程科学,排版及网络管理等。同时,还提供培训、视频课程(包含34款软件,64门课程)、实验室解决方案和项目咨询等服务。
不管您是需要购买单款软件,还是制定整个实验室的购买方案,都可以提供。
Version 2.0, released in early May of 2011, is the first major upgrade of HYDRUS since 2006. In this version, we are expanding the four editions (Levels) which were available in version 1.x of HYDRUS, namely 2D-Lite, 2D-Standard, 3D-Lite, and 3D-Standard, with a new additional Level 3D-Professional. The 3D-Professinal Level will enable you to define transport domains of virtually arbitrary 3D shapes. Another major improvement that should significantly improve the effectiveness of working with HYDRUS is an option to specify various domain properties, and initial and boundary conditions, on Geometric Objects, rather than on FE-Mesh. We have also implemented two new solute transport modules (UNSATCHEM and Wetland) for evaluating the transport of major ions and for simulating processes in natural or constructed wetlands. There are also many other additional improvements and expansions of the model. Version 2.02, released in September 2012, offers three additional add-on modules: DualPerm for simulating two-dimensional variably-saturated water movement and solute transport in dual-permeability porous media, i.e., preferential and nonequilibrium water flow and solute transport, C-Ride for simulating two-dimensional colloid-facilitated solute transport, and HP2, which couples Hydrus (its two-dimensional part) with the PHREEQC geochemical code [Parkhurst and Appelo, 1999] to create this new comprehensive simulation tool (HP2 - acronym for HYDRUS-PHREEQC-2D), corresponding to a similar one-dimensional module HP1. Version 2.03, released in September 2013, uses new fonts improving the look of HYDRUS GUI on Chinese, Japanese and other similar Windows systems. This version also brings a number of new functions.
We will be expanding the public library of HYDRUS projects in the near future. We welcome suggestions regarding the types of projects you would like to download here.
You can download a Demo Version of the entire HYDRUS software from our web site and obtain a license (authorization codes) directly from us, or from other distributors. You can also freely download the Technical Manual, which contains detailed mathematical descriptions of problems that can be addressed with HYDRUS, numerical solutions of the governing equations, descriptions of the computational modules, and many example applications for verification purposes. The User Manual is also free to download, and provides descriptions of the main components of the graphical user interface, as well as many software related details (such as the main dialog windows, commands, and menus). The demo version is installed with selected examples that are described in the Technical manual. Additional examples (for Version 1 and Versions 2 and 3) can be downloaded as well and copied into HYDRUS workspaces as is described in the User Manual. Note that we will continue to further expand the library of these downloadable projects.
科学软件网的客户涵盖产品涵盖教育、、交通、通信、金融、保险、电力等行业,并且为诸如北京大学、*大学、中国大学、中科院、农科院、社科院、环科院、国家、交通部、南方电网、国家电网、许继、南瑞等国内大型企事业单位、部委和科研机构长期提供相关产品。我们的品质,值得您信赖。
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主要经营北京天演融智软件有限公司(科学软件网)主营产品PSCAD, CYME, SPSSPRO, Stata, Matlab,GAMS,Hydrus,GMS,Visual Modflow 等各学科软件,科学软件网有20多年的软件销售经验,提供专业销售和培训服务,还有更多的增值服务。目前,科学软件网提供的软件有数百种,软件涵盖的领域包括,经管,仿真,地球地理,生物化学,工程科学,排版及网络管理等各个学科。。
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