Harvest index and straw yield of five classes of wheat

Wheat straw is a potential cellulosic feedstock for bioethanol. This study was conducted to evaluate straw yield potential and its relationship with grain yield for wheat (Triticum spp.) grown in the United States. The specific objective was to determine if differences in straw yield and harvest index (HI) exist between and within regions and/or wheat classes. Using on-going variety performance trials in eight states, a total of 255 varietal trial entriess from five classes of wheat were surveyed for above-ground biomass. Averaged over all wheat classes and regions the HI was 0.45. Soft red winter wheat in Kentucky had, on average, the highest HI and lowest straw yield among regions and wheat classes. Soft white winter wheat under irrigation in the Pacific Northwest produced the highest straw yield. Hard red winter wheat in the southern plain states of Texas and Oklahoma had, on average, the lowest HI. Differences in the amount of precipitation and cultivars were the major contributors to the variation detected within wheat classes. The amount of wheat straw available as cellulosic feedstock in a state or wheat class can be estimated using the grain yield estimates provided by the National Agricultural Statistics Service and the class specific HI.     

基于数据仓库的智能报表系统研究

文章以广域水质自动监控系统业务数据库为数据来源。研究了基于OLAP和数据仓库的智能搬表系统（IRS）及其实现。主要包括IRS的结构及技术分析，作为IRS前端界面的智能报表的通用构件结构及其“框架＋插件”的设计思想。     

基于数据仓库的EIS数据管理体系结构

该文采用数据仓库的思想构建了EIS的数据管理体系结构,以满足EIS的数据分布性、格式多样性和结构复杂性的要求,克服了现有EIS响应速度低、可用性差等方面的缺陷。在该体系结构中,分别设置了硬信息获取、软信息挖掘模块和硬软信息集成、链接模块,并就实现的关键技术提出了解决方式。     

数据仓库设计过程研究

从数据仓库与操作型数据库的区别出发，借鉴传统数据库设计的阶段划分思想给出了一种数据仓库设计方法，并明确了各步骤间的关系及其输入／输出和完成的工作。     

数据仓库与决策支持在医院信息系统中的应用

我国现阶段医院普遍建成了自己的医院信息系统，但是从数据应用的角度来看，大多还只是停留在数据保存、查询的层次上．在医院管理中，一方面大量数据从业务数据库中导出后未得到利用，形成严重的资源浪费，另一方面现代医学与医院管理决策却需要大量的临床数据．如何管理医院中的日常业务数据，提高数据的利用等级，已经成为医院信息系统向纵深发展的重要课题．     

数据仓库实现过程及在线分析

数据仓库技术是近几年来出现并迅速发展的一种技术，它可以充分利用数据仓库中已存储的信息，帮助决策者进行决策。本文在介绍数据仓库的定义和数据仓库决策支持系统原理的基础上，详尽地讨论了数据仓库中的数据抽取与转换方法，并对数据仓库实现过程进行了实例探索和在线分析，最后根据数据挖掘方法进行了实际的应用。本文就是采用微软SQL Server 2000数据仓库技术设计了一商业用的数据仓库，使读者可清楚了解数据仓库的决策支持系统的实现过程。     

数据仓库和联机分析处理技术在装备器材保障中的应用

文章分析了传统装备器材保障中数据处理方法存在的不足，提出了基于数据仓库和联机分析处理技术的器材保障管理的设计思想，阐述了数据仓库多维数据结构的设计方案，讨论了联机分析处理和数据挖掘的实现方法。     

基于库存控制的数据仓库与决策支持

通过对传统决策支持系统已经不能满足当今企业对决策支持的需要的分析,提出了采用数据仓库（DW）,联机分析处理（OLAP）及数据挖掘技术为企业提供决策必要性,设计了一种利用数据仓库（DW）技术和联机分析处理（OLAP）、数据挖掘（DM）等数据仓库工具提供库存控制决策支持的方案,并着重阐述了联机分析处理（OLAP）与数据挖掘是如何为企业库存控制提供决策支持的。     

Selected primary and secondary metabolites in fresh persimmon (Diospyros kaki Thunb.): A review of analytical methods and current knowledge of fruit composition and health benefits

Diospyros kaki Thunb. (Ebenaceae) is a widely cultivated tree species in some countries of Asia, while in other continents persimmons are mostly considered “exotic” fruits. Peculiar characteristics of this species are a complex sex expression, parthenocarpy and fruit astringency at harvest time, associated with a different composition in polymerized flavan-3-ols. Analytical methods for determining sugars, vitamin C, carotenoids and polyphenols in persimmons were critically reviewed in order to evaluate the overall significance of literature results; the nutritional and nutraceutical properties, together with the health benefits of both astringent and non astringent cultivars, were also overviewed. To these aims, the available literature from the last twenty years and the most important formerly published papers were investigated using SciFinder^®, Elsevier SciVerse, AGRIS, and PubMed search engines. Persimmons resulted rich in sugars (about 12.5 g/100 g FW), being fructose, glucose and sucrose the major components, and in total vitamin C, for which 100-150 g of fresh persimmon supplies the recommended daily amount. Astringent varieties supply higher amounts of sugars than nonastringent ones; conversely, higher concentrations of total vitamin C were found in nonastringent cultivars. The main carotenoid components are ??-cryptoxantin (193 ??g/100 g FW), ??,??-carotene (113 ??g/100 g FW) and ??,??-carotene (30 ??g/100 g FW). Persimmons are also a good source of polyphenolic compounds such as p-coumaric acid, catechin, epicatechin, epigallo catechin, and condensed proanthocyanidins. This chemical composition, together with in vivo and in vitro studies, suggests a relevant role of persimmon in the protection against free radicals and in the prevention of some human diseases.     

一种新型的数据管理系统--数据仓库

在比较了数据仓库与传统数据库的区别的基础上,讨论了数据仓库系统的基本结构,数据仓库化的步骤和技术;认为数据仓库,联机分析处理和数据挖掘的结合将成为决策支持系统的重组成部分;并且提出了数据市场是实现数据仓库中间过渡形式,以企业销售情况分析 做了数据市场中数据存储形式的初步设计。