基于Access的烟草病虫害信息管理系统

为实现烟农对烟草病虫害信息的管理,在Windows环境下,使用Access开发了烟草病虫害信息管理系统。该系统具有烟草病虫害信息的输入、删除、修改、查询等功能,系统不仅界面友好、易学易用,且系统稳定,具有功能全面等优点。     

策略路由技术在城域网中的应用

利用策略路由（PBR）技术实现选择转发路径可有效地解决多出口负载均衡问题,通过在边界路由器上构造访问控制列表和策略路由来分配流量并进行地址转换,提高了内部局域网用户访问Internet和公网用户访问内网的速度,在合理利用网络资源的同时增强了内部网络的安全性。     

林业地理信息系统中Access数据库研究

叙述了在林业地理信息系统中,利用Access数据库,如何实现属性数据浏览、各种林业统计表的制作、选取小班图形数据,并对所选小班进行属性查询、统计报表。按照本文操作,即可建立一个简易的林业地理信息系统。     

ODBC配置数据库应用程序

应用ODBC数据源的联接原理，分析了计算机应用程序与数据库进行联接的方法。用C Builder代码，通过ODBC数据源注册了Ms Access数据库。说明ODBC数据源注册数据库的基本方法与步骤。读者可以利用这一原理，编制更加完善的数据库应用程序。     

Comparison of canine cardiac troponin I concentrations as determined by 3 analyzers

BACKGROUND: Recent interest in cardiac biomarkers has led to the validation of several commercial analyzers for cardiac troponin I (cTnI) evaluation in dogs; however, these analyzers have not been standardized. HYPOTHESIS: It was hypothesized that canine plasma cTnI concentrations as determined by 3 different analyzers would be similar. ANIMALS: Twenty-three dogs with cardiac disease were studied. METHODS: Reconstituted purified canine free cTnI was diluted with canine plasma to 8 concentrations (0.01, 0.1, 0.78, 1.56, 3.13, 6.25, 12.5, and 25 ng/mL), for analysis by 3 analyzers, the Biosite Triage Meter, the Dade-Behring Stratus, and the Beckman-Coulter Access AccuTnI. Plasma samples from 23 dogs with cardiac disease were also analyzed for cTnI concentrations on all analyzers. RESULTS: Troponin I concentrations in sick dogs were <0.05-5.72 ng/mL (Biosite), 0.02-11.1 ng/mL (Access), and 0.02-9.73 ng/mL (Stratus). Analyzer results were highly correlated with each other (r = 0.97 to 1.0 for purified dilutions, r = 0.61 to 0.89 for samples from dogs); however, the limits of agreement were wide for both purified dilutions and clinical samples. Recovery was highest for the Access (334-1467%) and lowest for the Biosite (38-60%); Stratus 52-233%. Analyzer variability was lowest for the Access (1.2-10.4%) and highest for the Stratus (4.8-33.6%); Biosite 2.8-16.5%. CONCLUSIONS AND CLINICAL IMPORTANCE: Results from this study suggest that although canine cTnI values obtained from the Biosite, Stratus, and Access analyzers are closely correlated, they cannot be directly compared with each other. In the absence of a gold standard none of the analyzers can be considered more correct than the others.     

基于EzGIS二次开发的森林资源信息管理系统

本文基于EzG IS平台进行二次开发的森林资源管理地理信息系统,采用软件V isual Basic 6.0、Access数据库、Ez-G IS二次开发平台组件,实现林场范围内小班地理信息数据的图形管理、数据管理、统计和汇总等功能。     

农村供水工程设计图集数据库的构建

针对我国农村供水工程图纸资料缺乏及推广不便的现状,利用数据库开发软件Microsoft Access可以导入OLE数据对象的优点,分析设置多种字段描述农村供水工程图纸建立数据表,将图纸文件作为OLE对象导入数据表,根据实际对图集的应用需求建立各种查询,进而构建人机交互界面并完善图纸数据库.该图集数据库现有取水、调节、输配水、水质处理与净化、水厂总体设计、电气与自动控制图纸,并且可以将增加的农村供水工程图纸文件导入到图集数据库中.实际应用结果表明,该数据库能够满足大量农村供水工程图纸存储和分类的要求,将图纸数据库与互联网结合使用,用户能够在线查询、下载和打印图纸.     

北沙柳种质资源信息管理系统的建设

本文论述了"北沙柳种质资源信息管理系统(Salix psammophila Germplasm Resources Management Information System)"的设计思想、程序结构及应用效果,根据北沙柳种质资源库信息管理的需求,将Access数据库技术应用于北沙柳种质资源库管理中.该系统的开发目的在于对该类种质资源库的信息进行合理的管理,让用户能够科学、有效地使用种质资源库中的信息.该系统的应用,不仅减轻了工作人员的劳动强度,而且使各种资科得到充分共享,加快信息提取及信息汇总速度,提高了工作效率.     

无边界可溶数据库技术初探——以贵州省息烽、修文两县长防林工程信息管理为例

自然资源管理具有数据量大,数据种类多,数据之间包溶性强的特点。采用何种数据库技术才能适应这些特点,使资源管理行为回归到以数据库为中心的管理模式,本文为此提出了“无边界可溶数据库技术”。通过对两个县长江防护林工程信息管理系统建立近60万个数据的数据库技术处理过程证明,“无边界可溶数据库技术”对于资源管理实践有很大的指导作用,对于决策分析有不可替代的地位。     

Classification of institutional barriers affecting the availability,accessibility and attractiveness of urban green spaces

The main goal of this article is to identify and classify institutional barriers which prevent the use of urban green spaces (UGS) at three levels: availability (whether a UGS exists), accessibility (whether it is physically and psychologically accessible, e.g., not fenced off), and attractiveness (whether it is attractive enough for potential users to visit). We reviewed the impacts on UGS provision exerted by different actors (individuals, formal and informal groups, community councils, city authorities, national governmental and non-governmental organizations), along with the relevant institutional foundations of those impacts. As a result, we identified and classified the different barriers for which these actors are responsible in the case of fifteen UGS types in our case study city, Lodz (Łódź) in Poland. The main barriers at different levels concern conflicting interests, physical barriers (private green spaces), and the lack of funds, together with legal and governmental failures (public green spaces). These barriers result from the different actors’ mandates or lack thereof. Our analysis has implications for the operationalization of UGS availability, accessibility and attractiveness, and, in particular, for mapping UGS and setting the relevant indicators and thresholds for UGS availability, accessibility and attractiveness.