矿山设计方案的模糊综合评价

评价与选择合理的设计方案，是矿山建设决策过程的一个重要环节。矿山条件的复杂多变，常使设计方案的选择具有较大的模糊性。用模糊数学方法建立综合评价模型，能够综合考虑各种方案的主要影响因素，使决策更符合于实际情况。     

谷物干燥企业工艺优选模糊综合评价

我国现有谷物干燥工艺种类多,工艺性、经济性等指标繁杂,企业不容易选择。针对这一问题,运用多级模糊综合评价方法,对实际生产中有代表性的谷物干燥工艺进行综合评价,使得对工艺方案的评价具有准确性和客观性。通过建立数学模型,经过分析计算,结论基本合理,且本方法简单实用,为企业选择优良的生产工艺提供了理论依据。     

粮食干燥品质质量AHP综合评价

运用层次分析法对粮食干燥进行评价，提出了全面定量化和定性化的层次结构评价模式和总体评价方法。首先建立粮食干燥品质优选的层次分析结构模型及判断矩阵，然后进行层次排序，并对判断矩阵进行一致性检验，在定性、定量指标转换的基础上形成评价方法。生产试验表明该方法简易可行，结论符合实际。     

真空干燥冷却工艺的发展

本论证通过洗衣皂真空干燥冷却设备的改进，可使之成为既能生产洗衣皂，也可生产半透明皂的多功能生产设备。     

管理信息系统的模糊综合评价模型

管理信息系统的评价是对一个MIS系统的性能进行全面估计与测试,良好的评价可以促进系统设计目标的实现,提高投资效益。本文根据MIS的特点,确定出评价指标体系,采用模糊综合评价方法对MIS进行综合评价,提出了一种评价MIS的合理方法。     

真空连续干燥系统抽气量的计算

介绍了真空连续干燥装置真空系统—抽气量的计算方法,通过与实际实验装置操作情况的比较,验证了该计算方法的可行性。     

微波真空干燥高粘度的灵芝浓缩液

热敏性、高粘度物料的干燥仍是现代干燥技术中的一个难题。灵芝水提后，由薄膜蒸发器浓缩至含水量70％左右，然后采用微波真空干燥（真空度3000Pa）至水分含量10％左右，改用传统的电热真空干燥（55～60℃）至含水量6％～7％。对干燥产品的主要生物活性成分——灵芝多糖和三萜酸进行了分析检测并与其它干燥方法进行了比较。结果表明：利用微波真空干燥的灵芝产品其灵芝多糖和三萜酸的保留率与冷冻干燥产品十分接近。而比传统真空干燥（60—65℃）的产品要高得多，此外采用微波真空干燥的干燥时间要短得多。     

真空干燥技术在香皂行业中的应用

本文报道了香皂生产中,根据皂胶温度、喷漆、喷出方式、喷嘴轴转数等诸影响皂基干燥因素,自行设计一条真空干燥生产线,与老式烘房干燥工艺相比成本可下降21.3元/t,蒸汽消耗指标下降5．8倍,     

Vacuum Drying for Ultrafine Alumina Powders

It is well known that the drying of liquid-borne powders will create agglomerates and the problem of agglomeration is particularly acute in the nanoscale range. To eliminate/mitigate the agglomeration problem, in this study, a vacuum drying technique was used for drying the colloid solution with θ-Al₂O₃ ultrafine particles. For comparison purposes, other drying methods including oven drying, microwave drying, and freeze drying were also applied for drying of the same kind of colloid solution. The results indicate that the redispersibility, which is closely related to the degree of agglomeration, of the dried powders obtained from vacuum drying is better than that obtained from freeze drying. More surprisingly, results showed that the dried powders obtained from the vacuum drying assisted by microwave heating has the redispersibility close to 100%.     

超低渗油藏开发效果的多层次模糊综合评价模型

从吉林油田超低渗油藏开发实例出发,对影响开发效果的指标进行相关性分析,优选出10个独立指标,进而通过模糊数学与1-9标度法建立了模糊综合评判数学模型,并且利用模糊层次分析方法得到各指标权重。对L16研究区块进行模糊评价,结果表明,该方法能够为现场开采提供理论依据,具有一定的客观性、准确性。     

模糊综合评判水驱开发效果

以海拉尔某断块油藏为例,采用层次分析和模糊综合评判方法,建立了相应的评价指标和评价标准,对该油藏的开发效果进行综合评价.评价结果认为该油藏存在着水驱控制程度低、地层能量保持水平低等问题,整体开发效果较差.     

基于模糊综合判断的固井质量影响因素评价

固井是将水泥浆注入到井眼与套管之间的环形空间的施工作业,其质量优良与否关系到油田勘探开发长远经济效益。固井主要是为了封隔井眼内的油、气、水层,以满足在油气田开发过程中的层间封隔、测试、采油、增产措施等开发技术的有效实施。对于复杂问题和大系统,模糊综合评判模型可以反映客观事物因素间的不同层次,解决了因素过多难于分配权重的困难。本文就是基于模糊综合评判法对影响固井质量的三大类因素进行评价得到每一类因素的影响权重大小。通过计算分析可知:在影响固井质量的三大类因素中,固井因素的影响最大,其次是钻井因素,地质因素影响最小。     

普通真空干燥设备综述

主要按间歇式和连续式的工作方式介绍了普通的真空干燥设备的分类及设备特点;讨论了国内真空设备的现状及发展趋势。     

基于模糊综合评判法的石化企业绿色物流绩效评价研究

石油化工企业生产的产品自身特性和物流过程特性共同决定了其实施绿色物流管理的紧迫性,为了实现建立健全石化企业绿色物流目标,绿色物流绩效评价是最为关键的手段。以石化企业绿色物流过程为研究对象,从资源利用、运营过程和环境等三方面建立石化企业绿色物流绩效评价指标体系,构建了基于模糊综合评判法的石化企业绿色物流绩效评价模型,评价模型采用定量化处理方法,克服了主观评判带来的局限性,权重确定过程考虑了石化企业绿色物流改进方向,该套评价方法符合石化企业绿色物流的实际情况,为石化企业绿色物流绩效评价提供了新思路。     

Microwave,Vacuum, and Air Drying Characteristics of Collard Leaves

Collard leaves (Brassica oleracea L. var. acephala) with an initial moisture content of 6.65 on percentage dry basis (%db) were dried by three different drying methods: microwave, air, and vacuum. Samples of fresh leaves, 25 g each, were dried until their moisture was down to 0.1 on a dry basis. The following drying levels were used in each of the drying processes: 350, 500, 650, 750, 850, and 1000 W for microwave drying; 50, 75, 100, 125, 150, and 175°C for air drying; and 0.4, 50, and 100 mmHg at 50 and 75°C for vacuum drying, respectively. Drying times ranged between 2.5 to 7.5 min, 8 to 210 min, and 35 to 195 min for microwave, air, and vacuum drying, respectively. The data obtained compared well with a thin-layer drying model. Microwave drying at 750 W provided optimal results with respect to drying time, color, and ascorbic acid content (vitamin C).     

输油管线应急抢险抗滑桩的模糊综合评价分析

滑坡灾害作为全球性三大地质灾害之一,每年造成高达数百亿的经济损失。抗滑桩在滑坡灾害运用中取得了显著的效果,以运用抗滑桩在航空煤油输油管线处的运用为背景,采用模糊综合评价法,对抗滑桩的安全性进行评估,确定抗滑桩的安全等级,确保滑坡地带区埋地输油管线的安全运行。     

Simultaneous Drying and Modification of Properties of Starch Using Vacuum Microwave Treatment

The prospect of modifying starch properties while drying was investigated. Potato starch (18% moisture, dry basis) was vacuum microwave treated for different durations (60 to 600 s) with power ratings of 600, 1,000, and 1,500 W at a reduced pressure of 5,000 Pa (absolute). The drying rate was observed to be partially constant but was accompanied by a curious rise in sample temperature. Under a polarized light microscope, reduction in granule size was noticed, which was confirmed from the bulk density measurements, and this shrinkage may be explained by the loss of constituent water. Water absorption capacity of the treated starch samples was further studied at 55°C. The results showed a sudden increase in the capacity, indicating a reduction in gelatinization temperature of starch. This may be attributed to the change in nature of starch from crystalline to amorphous as shown by X-ray diffractograms and to the cracks developed on the granule surface during treatment seen in the scanning electron microscope images. This modified starch can serve well in the paper and food industry.