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| 1 | Accuracy assessment of global historical cropland datasets based on regional reconstructed historical data——A case study in Northeast China显示文摘Historical cropland datasets are fundamental for quantifying the effects of human land use activities on climatic change and the carbon cycle. Two representative global land-use datasets, the Global Land Use Database (termed SAGE dataset) and the Historical Database of the Global Environment (termed HYDE dataset) have been established and used widely. Despite improvement of data quality and methodologies for extracting historical land use information, certain dataset limitations exist that need to be quantified and communicated to users so that they can make informed decisions on whether and how these land-use products should be used. The Cropland data of Northeast China (CNEC) is based on calibrated historical data and a multi-sourced data conversion model, and reconstructs cropland cover change in Northeast China over the last 300 years. Us- ing the CNEC as a reference, we evaluated the accuracy of cropland cover for SAGE and HYDE in Northeast China at spatial scales ranging from the entire Northeast China to provinces and even individual raster grid cells. Neither SAGE nor HYDE reflects real historical land reclamation. Cropland areas in SAGE are overestimated by 20.98 times in 1700 to 1.6 times in 1990. Although HYDE is better, there are significant disagreements in cropland area and distribution between HYDE and CNEC, especially in the 18th and 19th centuries. The proportion of total grid cells whose relative error was greater than 100% was 63.55% in 1700 and 53.27% in 1780. Global cropland dataset errors over Northeast China originate mainly from both the reverse calculation method for historical cropland data based on modern spatial patterns, and modern land-use outputs from satellite data. | Li BeiBei Fang XiuQi Ye Yu Zhang XueZhen | 2010 | Science China Earth Sciences2010，53，11： | 31 |
| 2 | 基于.NET MVC架构的网上珠宝销售系统的设计与实现显示文摘由于网络访问的快捷与便利,利用网络进行商品信息的管理与销售已经被广泛应用到各行各业中。针对珠宝这一特殊商品,利用Visual Studio 2010开发平台和SQL Sever 2008数据库软件,采用ASP.NET MVC架构设计一套网上珠宝销售系统,实现对珠宝信息的方便录入及快速查询,在保障珠宝安全的同时满足客户选购的需求。重点描述系统的整体设计模型,MVC架构在系统中的应用,并对数据建模与访问关键技术进行深入研究。该系统目前已应用于美国华尔街的某珠宝公司,实际应用证明该系统具有稳定、高效和安全的特点。 | 李志 贾克斌 李真真 姚萌 | 2013 | 计算机应用与软件2013，30，3： | 33 |
| 3 | ADO.NET数据访问模型研究显示文摘开发数据库应用程序的时候,如何选择数据库访问方式以及提高其性能至关重要。通过分析ADO.NET访问数据库的对象模型,一种是直接连接到数据库的对象,另一种是断开连接的对象,阐述了面向流和面向集的数据访问方式的区别及其各自的优点,并重点讨论了面向集的数据访问方式,即用DataSet(数据集)如何处理脱机数据,提高应用程序性能。 | 张牧笛 罗驱波 白静宜 | 2008 | 微计算机信息2008，24，6： | 18 |
| 4 | 深入理解ADO.NET的更新机制显示文摘描述了ADO.NET的更新机制,对不同的更新方式的优劣进行了论述,并提出对应用开发中的高级数据更新场景的解决方法。 | 李永革 潘卫 邢红梅 | 2005 | 计算机应用2005，25，B12： | 17 |
| 5 | 基于.NET环境下ADO.NET访问数据库技术的研究显示文摘ADO.NET是微软针对ADO的缺陷而重新设计的一种全新的数据库访问模型,它支持工业标准,集合了所有用于数据处理的类。该文研究了ADO.NET的体系结构和数据绑定技术,创新性的对利用ADO.NET访问数据库的不同方式进行了探究.对于软件开发人员连接数据库具有一定的指导意义。 | 张建成 李春青 | 2009 | 电脑知识与技术2009，5，8： | 14 |
| 6 | 基于.NET的通用查询组件的开发显示文摘在分析主要开发技术的基础上,介绍了如何在.NET平台下用C#语言开发一个实用的通用查询组件,详细叙述了该查询组件的设计方法、功能实现的部分程序代码。在实际数据库的应用系统中,各子系统在调用该组件时只要设置相应的连接字符串参数,就可满足子系统的查询需求,达到通用的要求。在包含多个查询子系统的应用中,通过调用查询组件可以加快开发进度,降低成本,提高软件的开发效率。 | 唐伟 施永香 文巨峰 | 2006 | 计算机工程与设计2006，27，14： | 13 |
| 7 | Solar flare forecasting using learning vector quantity and unsupervised clustering techniques显示文摘In this paper, a combined method of unsupervised clustering and learning vector quantity (LVQ) is presented to forecast the occurrence of solar flare. Three magnetic parameters including the maximum horizontal gradient, the length of the neutral line, and the number of singular points are extracted from SOHO/MDI longitudinal magnetograms as measures. Based on these pa- rameters, the sliding-window method is used to form the sequential data by adding three days evolutionary information. Con- sidering the imbalanced problem in dataset, the K-means clustering, as an unsupervised clustering algorithm, is used to convert imbalanced data to balanced ones. Finally, the learning vector quantity is employed to predict the flares level within 48 hours. Experimental results indicate that the performance of the proposed flare forecasting model with sequential data is improved. | LI Rong WANG HuaNing CUI YanMei HUANG Xin | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，8： | 10 |
| 8 | ADO.NET数据库访问技术研究与实现显示文摘.NET框架中的ADO.NET是在ADO基础上开发的,但ADO.NET更强大,他使用XML来进行数据交换,添加了许多新的对象和程序化接口,以简化对数据库的操作,提高了生产效率。通过对ADO.NET的体系结构、特性以及内置对象的介绍,分析了ADO.NET的使用技术方法,实现了应用ADO.NET的数据库访问技术。 | 孔延香 李永忠 郭秀峰 | 2005 | 现代电子技术2005，28，16： | 8 |
| 9 | Research and development of Chinese LCA database and LCA software显示文摘This paper detailed introduces the related work for building Chinese National Database, Sinocenter, of materials life cycle assessment (MLCA) and developing the environmental burden dataset of materials. The MLCA database was built in 2004, and the basic framework mainly includes LCA methodology, materials environmental dataset about energy consumption, resource input and environmental emissions. Nowadays, the database contains about fifty-thousand records of the main materials industries, such as cement, iron and steel, nonferrous metal, etc., and also includes the primary LCI data of fossil fuels and electricity grid in China. At the same time, the LCA method localization work is going on, for instance, calculated the resource characterization factors of 42 kinds of metal and 58 sorts of nonmetal, and also obtained some heavy metal impact factors in water. Based on the database, the iron and steel dataset has been developed with the data quality analysis, and some environmental burden data could be queried in our website, www.cnmlca.com, in the future. Lastly, according to the framework of the ISO14040 series standards, the antitype of Chinese LCA evaluation system was developed to support materials and products LCA evaluation in China. | GONG Xianzheng NIE Zuoren Wang Zhihong ZUO Tieyong | 2006 | Rare Metals2006，25，z2： | 8 |
| 10 | 有关WebService传输数据的研究和实现显示文摘该文说明了WebService传递数据的通用方法,比较得出这些方法的优势和劣势。最后通过.net下提供的序列化组件.zip压缩组件,实现对要传输数据压缩。试验测试得出这种利用组件化压缩WebService传输数据的优势。 | 卞海龙 | 2009 | 电脑知识与技术2009，5，3： | 7 |
| 11 | ADO.NET数据库访问技术的浅析显示文摘随着.NET平台的发展,.NET架构体系日益成熟而且应用范围越来越广,ADO(ActiveX Data Object).NET技术成为这一体系中数据库访问和应用程序开发的强大工具。文章总结了动态网页开发过程中的经验,对ADO.NET的基本思想和结构以及其在.NET体系中的地位和作用进行了阐述,介绍了其技术特点、其中的关键对象和方法,并以C#语言为例描述了其实现的过程。 | 戚敏 林琳 | 2009 | 昌吉学院学报2009，，1： | 7 |
| 12 | Atmospheric heat source/sink dataset over the Tibetan Plateau based on satellite and routine meteorological observations显示文摘The Tibetan Plateau(TP),acting as a large elevated land surface and atmospheric heat source during spring and summer,has a substantial impact on regional and global weather and climate.To explore the multi-scale temporal variation in the thermal forcing effect of the TP,here we calculated the surface sensible heat and latent heat release based on 6-h routine observations at 80(32)meteorological stations during the period 1979–2016(1960–2016).Meanwhile,in situ air-column net radiation cooling during the period 1984–2015 was derived from satellite data.This new data-set provides continuous,robust,and the longest observational atmospheric heat source/sink data over the third pole,which will be helpful to better understand the spatial-temporal structure and multi-scale variation in TP diabatic heating and its influence on the earth’s climatic system. | Anmin Duan Senfeng Liu Yu Zhao Kailun Gao Wenting Hu | 2018 | Big Earth Data2018，2，2： | 7 |
| 13 | A Dataset of Global Ocean Surface Currents for 1999-2007 Derived from Argo Float Trajectories: A Comparison with Surface Drifter and TAO Measurements显示文摘A dataset of surface current vectors with error estimate from 1999 to 2007 is derived from the trajectories of the Array for Real-time Geostrophic Oceanography (Argo) drifting on surface over the global ocean. The error of the estimated surface currents is about 4.7 cm s-1 which is equivalent to the accuracy of the currents determined from the surface drifters. Geographically, the Argo-derived surface currents can fill many gaps left by the Global Drifter Program due to the greater number of floats, and can provide a complementary in situ observational system for monitoring global ocean surface currents. The surface currents from the Argo floats are compared with the surface drifter-derived currents and the Tropical Atmosphere Ocean program (TAO) measurements. The comparisons show good agreement for both the current amplitude and the direction of surface currents. Results indicate the feasibility of obtaining ocean surface currents from the Argo array and of combining the surface currents from Argo and the ocean surface drifters for in situ mapping of the global surface currents. The authors also make the dataset available to users of interest for many types of applications. | XIE Jiping ZHU Jiang | 2009 | Atmospheric and Oceanic Science Letters2009，2，2： | 6 |
| 14 | ADO.NET数据访问体系结构研究显示文摘ADO.NET是基于.NET Framework平台下的数据访问技术,该文介绍了ADO.NET的数据访问工作机理,并对ADO.NET和ADO进行了简单比较,分析了ADO.NET框架下访问数据库的两类核心组件,最后给出了采用ADO.NET访问不同数据库需要引入相应的命名空间。 | 詹发荣 | 2009 | 电脑知识与技术(过刊)2009，15，7X： | 6 |
| 15 | .NET平台中XML与Web数据库双向数据交换接口的研究和实现显示文摘随着Internet的发展和XML的广泛应用,XML和Web数据库数据交换也日夜频繁。如何高效的实现两者数据交换直接关系到Web应用程序的效率。本文给出了XML和数据库双向数据交换接口模型并在此基础上进行了改进,提出了更高效的接口模型和该模型的解决方案,并在实际应用中实现了XML和数据库双向数据交换接口模型。 | 罗凌 | 2006 | 微计算机信息2006，22，09X： | 6 |
| 16 | 基于地理国情监测的影像处理方法研究显示文摘随着遥感技术的迅速发展,影像数据量也越来越庞大,而遥感影像是地理国情监测的重要组成部分。使用传统的影像处理方法如坐标转换、图像镶嵌等,会输出多次中间结果,耗时长,资源占用多并产生巨大的数据冗余,已无法满足地理国情监测底图快速制作的需求。本文探索了一种基于Mosaic Dataset的影像快速处理方法,该方法通过建立影像索引,从而无须输出中间结果,效率较高,能够满足影像快速应用需求,具有实用性。 | 张璐 刘昱君 唐权 杨程瑶 | 2014 | 测绘与空间地理信息2014，37，6： | 5 |
| 17 | ASP.NET+XML重构多商户的网上商城购物车显示文摘研究使用结构化的DataSet、Session和XML实现商城购物车的基本思路,并公布了一些相关的代码供参考。 | 杨竹君 | 2005 | 科学技术与工程2005，5，16： | 5 |
| 18 | 基于ADO.NET的数据库访问技术研究与应用显示文摘ADO.NET是微软针对ADO的缺陷而重新设计的一种全新的数据库访问模型,它支持工业标准,集合了所有用于数据处理的类。文章论述了ADO.NET的结构和其中的主要对象,并以网站新闻管理系统为例,探讨了利用ADO.NET技术访问数据库的方式。 | 于训全 于晓冬 | 2006 | 企业技术开发2006，25，1： | 5 |
| 19 | ADO.NET技术和DataGrid控件显示文摘ADO .NET是 .NET框架中的一种基于XML的全新的数据访问技术 .分析ADO .NET技术的基本原理和使用方法 ,探讨DataGrid控件的新特点并给出一个应用示例 .从而 ,它为在 . | 鲁斌 余金山 | 2004 | 华侨大学学报(自然科学版)2004，25，3： | 4 |
| 20 | 基于.NET的通用网上答疑系统的设计与实现显示文摘介绍了ASP.NET技术的相关知识。针对现在流行的网络教学中师生交流的必要环节,设计并实现了一个基于.NET技术、B/S模式的通用的网上答疑系统。该系统实现了学生与教师之间的良好沟通,保证了学生通过网络进行学习的效率,并易于推广。 | 刘东飞 齐俊 | 2005 | 武汉理工大学学报(信息与管理工程版)2005，27，2： | 4 |
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