Application of Gestalt Theory in Architecture Esthetics     

《保鲜与加工》2003,(5):12-15

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The Study of Efficiency of the in the Yangtze River Del Urban Land Utilization ta Since the 1990s     

ZHANG Bing  JIN Fengjun 《保鲜与加工》2007,(5):38-43

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The Composition and Distribution of the Value of Leisure Real Estate near Scenery-areas     

WANG Xue-fa 《保鲜与加工》2007,(5):149-153

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Management System of the Tender and Bidding for Power Projects with a Valuation Based on the Bill of Quantities     

CAO Duan  LIU Zhen  SU Zeng-de 《保鲜与加工》2007,(1):155-158

Valuation based on the bill of quantifies will change the existing valuation mode of tender and bidding. For the standardized management of tender and bidding for power projects and the inteUigentized information management of power enterprises, it is an inevitable trend of reform to apply the valuation mode based on the bill of quantifies. According to the characteristics of power projects, this paper expounds the working process of the valuation mode based on the bill of quantities and analyzes the goal and function need of the tender and bidding management system. Considering the calculation procedure of the valuation and the quote strategy of quantities bill, the composition of fees for the valuation is settled and the calculation method is designed. To establish the management system of tender and bidding with a valuation based on the bill of quantities is beneficial for the costing reform of power projects and the perfection of the tender and bidding market. Therefore it is of great significance to spread the new management mode of project costing with a valuation based on the bill of quantities.  相似文献   

Analysis and Comparison of Four Transposition Methods in the Stator Bar of Hydrogenerator     

GUO Ning  HAN Li  SHI Xiao-kun 《保鲜与加工》2007,(2):42-45

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Determination of Molecular Weight and Distribution of Hyroxyethl Starch (HES) by Means of GPC- RI- MALLS Technique     

WU Yang-lan  WANG Yuan-liang  XU Shi-rong  YANG Ya-lian  WANG Xi-yun 《保鲜与加工》2007,(7):121-123129

The author introduces a method and experimental procedures that determine dn/dc,molecular weight and its distribution of the hyroxyethyl starch(HES) by means of Gel Permeation Chromatography-Refractive index-Multi-angle laser light scattering detection(GPC-RI-MALLS)techniques.The key experimental technique and results are discussed.The method takes CH3COOH/CH3COONa as mobile phase and solvent.The experiment gets satisfactory results.It can be used as a routine method to determine the hyroxyethyl starch(HES) molecular weight and its distribution.  相似文献   

基于KPCA-WLSSVM的建筑能耗预测模型     

赵超  戴坤成  王贵评 《保鲜与加工》2015,(5):109-115

为降低建筑能耗影响因素间复杂相关性对模型性能的影响,建立了一种基于KPCA-WLSSVM的建筑能耗预测模型。利用核主元分析(KPCA)对输入变量进行数据压缩,消除变量之间的相关性,简化模型结构;进一步采用加权最小二乘支持向量机(WLSSVM)方法建立建筑能耗预测模型,同时结合一种新型混沌粒子群-模拟退火混合优化(CPSO-SA)算法对模型参数进行优化,以提高模型的预测性能及泛化能力。通过将KPCA-WLSSVM模型方法应用于某办公建筑能耗的预测中,并与WLSSVM、LSSVM及RBFNN模型相比,实验结果表明,KPCA-WLSSVM模型方法能有效提高建筑能耗预测精度。  相似文献   

The Monitoring Measurements and Country Rock Control of NATM in Tunnel of Express Road during Construction     

Liu Li Tang Janxin 《保鲜与加工》1995,(5):113-119

In this paper the author' s study on the monitoring measurement technique of NATM,the regularity and conditions of the country rock deformation are analysed based on the site measurement data in the west section of Zhongliangshan tunnel. The regression analysis of measure data for different measure lines of vavious country rock is done by the use of self-compiled CRAP program. The stability criterion for various rockmass and optimum time for primary and permanent support are provided. The conclusion available could conduct the theoretical research of NATM deeply as well as tunnel design and construction.  相似文献   

OPTIMAL CONTROL ELIMINATING SWING FOR THE LIFTING CAPACITY     

Yao Jiafei 《保鲜与加工》1994,(2)

This paper discusses the model for lifting capacity of the crane and optimal con-trol of eliminating swing in lifting process. One half loop control method is presented, which is onlyto examine and measure the trolley speed for eleiminating swing.The fact shows this methOd is sim-ple and practicle for enginceering.  相似文献   

Application of Water Quality Standand Leuel Method in Eualuazing Status Quo of Heauy-Metals Pollution in Riuers     

Dai Dayu Xu Mingxi Peng Qingchu 《保鲜与加工》1993,(3):99-103

The status quo of heauy-metals pollution in water phase of course of Long-Tan hydropower statian was eualuated by water Quality Standand Level Method. With this special method,mone objectiue and definite results were obtained.  相似文献