农业学位论文信息管理系统研制

本文详细阐述了农业学位论文信息管理系统的规划设计和系统体系结构设计。该系统是辽宁省农业科学院科技信息研究所研制的系列农业实用信息管理系统的一部分。     

供暖锅炉消烟除尘装置的选择

各种锅炉消烟除尘设备都有自己的使用范围,本文主要介绍了供暖锅炉在消烟除尘选用中应考虑的问题,阐明选用消烟除尘设备时要充分了解其技术范围及其经济性能。     

经济开放度与地区经济发展的相关分析

选取代表经济开放因素的贸易开放度、资本开放度和生产开放度这三个指标加权合成经济开放度 ,用以反映一个地区经济的开放程度 ,通过计算看出我国各地区间的经济开放度存在显著的差异。作各地区的经济开放度与GDP的回归分析 ,结果表明经济开放度与地区经济发展水平具有很强的正相关性 ,经济开放是影响经济发展的很重要的原因之一。因此要加快中西部地区的经济发展必须提高其经济开放水平。     

浸渍纸预固化度的控制及对压贴工艺影响的探讨

通过正交试验分析了浸渍纸生产过程中预固化度的主要影响因素及最佳生产工艺。并给合压贴情况讨论了预固化度对压贴工艺和压贴效果的影响,确定了最佳压贴工艺。     

松木防蓝变和脱色处理技术的研究

解决松木蓝变问题已成为松材加工高档用材的基础和提高松材商品附加值的关键。通过探索性试验和正交试验以及(?)差的分析比较,得到防蓝变的优配方为:0.75％A1 0.50％A3 0.10％B。此配方在试验所观察的10周内防治效力达到了100％。同时,对松木蓝变色斑的脱除研究表明,在浓度5％的C药剂中加入D药剂,调节其溶液的pH值为10左右,加热到50-60℃对板材进行处理可有效脱除蓝变色斑。     

WPJL 60-型卷帘机设计

针对温室大棚用户的实际情况,设计一种WPJL 60-型卷帘机,并对关键结构进行运动分析与受力分析,对其主要结构的技术参数进行分析与计算,以完善机器结构和工作原理.     

利用模糊数学综合评价天然气管道的内腐蚀

通过对管道内腐蚀程度进行定量评价,了解管道的内腐蚀情况,是管道剩余强度评价、剩余寿命预测以及可靠性分析的基础.提出了利用模糊数学综合评价方法对天然气管道内腐蚀程度进行综合评价的具体方法,并通过应用实例验证了该评价方法的可行性.     

鲜食糯玉米农艺性状与鲜穗产量的灰色关联度分析

以正在参加黄淮海国家糯玉米区域试验的19个新品种为材料，利用灰色关联度分析方法，对11个农艺性状与鲜穗产量进行了关联度分析。结果表明，糯玉米农艺性状与产量关联度的大小依次为穗粗﹥穗行数﹥穗长﹥株高﹥收获期﹥行粒数﹥轴粗﹥穗位高﹥鲜百粒重﹥鲜出籽率﹥秃尖长。穗粗、穗行数、穗长、株高是影响糯玉米鲜穗产量的主要因素，而鲜穗百粒重、鲜出籽率、秃尖长度对产量影响则较小。但影响鲜穗产量的主要因素在不同产量水平品种中存在一定差异     

Analysis of the Static Stability of Tailings Dam under Coupled Deformation and Seepage Fields

The static stability of a tailings dam is analyzed with a finite element approach, which takes into account the effect of plastic deformation, temperature, saturation and void ratio on the properties of soil materials, the effect of water and soil interaction and the extended Mohr-Coulomb failure criterion. The concept of yield approaching degree is introduced, which is defined as the ratio of the existing equivalent stress to the yield stress taking into account the effects of different influencing factors. The response of the tailing dam subjected to the coupled saturated/unsaturated seepage and deformation is simulated, considering that the dry beach is 100-meter long and the starter dam is jammed, respectively. The important indexes such as the deformation and the phreatic surface of the dam are obtained. The distribution of the yield approaching degree in the whole dam under the given condition is obtained, which can provide not only a general stability assessment of the dam, but also important information to the decision-making for the reinforcement and maintenance of the dam.     

The Evaluating Model of the BSC in the Audit of the Capacity of Sustainable Operation

With the increasingly economic competition in the World, the audit industry, numerous investors and the enterprises pay more and more attention on the audit of company's sustainable operation. In view of existing situation that the audit on the capacity of sustainable operation attach main importance to the finance of the audited company, in the result, it is difficult to recognize it completely. The model of the balanced scorecard is used, an indicator system that combine company's finance condition and non-finance condition is built in the sustainable operation audit. Basing on the way to process non-dimensional quantities of indicators, the audit use the analytic hierarchy process to determine the weights of the evaluating indicators and take the degree of gray incidence as the evaluation criteria.