A SYSTEMATIC EVALUATION METHOD BUILDING DESIGN PLAN

This paper discusses the evaluation method of building design plan with the view of systematization and presents factors concerning building design plan. According to characteristics of multifactor, multipurpose, multifunction and multi-administrative levels in building design system, this comprehensive evaluation method provides a scientific basis for policymakers.     

Value Innovation Method in Product Scheme Cost Design

Product design now has a significant influence on the profitability of a business. Enterprise simulation can not only overcome the limitations of current product scheme cost evaluation methods , but also support Product Scheme Cost design of Dynamic Enterprise. Product Scheme Cost Design basing on Value Innovation Method aim at value increase , and use Enterprise simulation as Product design tools. To evaluate different design options, a series of runs are performed in Enterprise simulation system for each design variant. In this way , Product design face on enterprise business. This paper focus on value chain,and use it in Product design, provide a new way for Product design of Dynamic Enterprise.     

Design of Double Layer Torsional Reticulated Shell Using Back- Propagation Neural Network

In this paper artificial neural networks are used for design of large span double layer torsional reticulated shell. The torsional reticulated shells with spans varying between 50.0 - 80.0m are considered, Back -propagation algorithm is employed for training efficient neural networks for evaluation of the maximum deflection, weight and design of double layer torsional reticulated shell. A special method is developed for data ordering to reduce the nonlinearity of data and to increase the speed of training. This approach also provides the necessary stability. It shows that it is feasible to design double layer reticulated shell with artificial neural networks.     

Quantifiable Technique for Product Definition

近年来，我国水果种植业发展十分迅速，总产量跃居世界第一位。但是，一种奇怪的现象一直困扰着水果市场，一方面农民卖果难；另一方面水果出口数量发展缓慢，国内市场终端的水果质量也不尽人意。除了某些水果品种过时、栽培技术有待改进外，另一个主要原因就是水果物流过程中存在着诸多问题。提高我国水果在国际市场的竞争能力，改善我国水果市场终端的商品品质，减少水果采后物流中的损耗是摆在水果研究人员面前亟待解决的问题。本文将对几种有代表性水果的物流现状进行概述，并就目前水果物流中存在的问题进行分析。１红富士苹果１．１主…     

New strategies for increasing heterozygosity in crops: Vicia faba mating system as a study case

Our research assesses the feasibility of using artificial selection on pre-mating floral traits to modify the mating system of faba bean (Vicia faba). This analysis considered two synthetic populations, which were derived from different genetic pools and had undergone five years of multiplication. For these populations, we identified floral and inflorescence traits that influence outcrossing per plant and examined the relative importance of these traits in governing yield. Codominant isozyme loci and the mixed-mating model were used to estimate the multilocus female outcrossing rate. A maternal half-sib design was used to evaluate the additive genetic component of floral and inflorescence traits, yield and yield components. Multiple regression was used to assess the effects of floral and inflorescence traits on outcrossing and yield and components of yield. The two populations exhibited mixing mating. Self-fertilization appears to result from the action of pollinating bees, so that its incidence could be modified by selection on floral and inflorescence traits that affect pollination. Floral and inflorescence traits affected individual differences in outcrossing unequally, with most variation being associated with the numbers of displayed flowers and inflorescences. Variation among plants in reward traits and in shape, although statistically significant, had limited and inconsistent influences on individual differences in outcrossing. Yield and its components varied strongly with aspects of floral display and, to a lesser extent, floral design, except for seed weight. Overall, our results imply that both outcrossing and yield could be enhanced by selection for plants that produce more inflorescences, each with relatively few flowers.     

Maximum slat width for cooling efficiency of horticultural produce in wooden crates

The influence of wood package design on airflow distribution was investigated for forced-air cooling using horticultural produce simulators. The position of grooves on the container walls was tested using slat width of 100–200 mm and airflow rates ranging from 0.0005 to 0.003 m³ kg⁻¹ s⁻¹. The package opening configurations were compared based on their impact on the energy added to the system using a methodology previously developed. For this purpose, apples and sweet corns were taken as examples of produce from two different extremes in the respiration activity range. For airflow rates as low as 0.0005 m³ kg⁻¹ s⁻¹one groove at the bottom of the container produced a cooling process more uniform than the other one-groove configurations and even two grooves because of natural convection effect. If packing low respiration rate produce, increasing airflow rate could compromise the process energy efficiency because of air circulation obstruction for less vented containers. For high respiration rate produce enlarging open area above 2.4% would be recommended rather than increasing airflow rate to enhance cooling energy efficiency.     

Statistical analysis of growth curves in plant breeding

Summary In the first part of this paper some experimental conditions necessary for a valid statistical analysis of differences in growth curves are discussed.Next the multivariate character of growth curves is considered. Data on the growth curves of three genotypes of an experiment with tomatoes of the IVT are used for illustrating the computational procedure and some aspects of interpretation.The growth curves of log dry leaf weight for each plot could be described by a quadratic function of time and were characterised by three components: mean level m, slope 1 (linear component) and curvature q (quadratic component).Univariate analyses of variance (ANOVA) showed significant differences between cultivars for each growth component: however, this is only part of the information as the correlation between the components is not involved. From a multivariate analysis of variance (MANOVA) it appeared that in this experiment the differences in growth between the cultivars were best expressed by using mean level m only.An estimate of the final (reduced) statistical model underlying the tomato example is derived.It is advised to split up growth into different phases of development each with its own analysis. At least four harvest dates for every phase seem desirable.     

树莓叶片再生研究初报

利用正交设计试验法研究了基本培养基、6-BA、IBA、和蔗糖4个因素及其组合对树莓叶片再生的影响。结果表明,6-BA对树莓叶片的再生影响最大,其次为IBA及基本培养基,影响最小的因素为蔗糖。树莓叶片再生的适宜组合为NN69 6-BA2．5mg／L IBA0．25mg/L 蔗糖40g／L。     

An Analysis to the Force Property of the Clutch-Screw Press and its Strength Design

This paper deals with the force property analysis,strength design and use of the clutch-screw press.     

Evaluation of Potato Hybrids Obtained from Tetraploid-Diploid Crosses II. Progeny Analysis

A total of 45 tetraploid-diploid (4x—2x) hybrid progenies were obtained by crossing each of ten diploid parents as males to each of five tetraploid parents. Means of six traits of the 45 progenies obtained from a two-year experiment were used in progeny analysis. A new mathematical model is developed for analyzing the incomplete two-way table. It is modified from the conventional model for factorial mating design. The aim of the model is to evaluate the potential of 2x parents in terms of their mean effects (μ_i) and sensitivity measures (B_i) to the 4x parents. The 4x parents were treated as testers in the model. They were compared by the estimates of the magnitude of tester effects (g_i). The mean effects of 2x parents showed a dominant influence on variation of tuber number and mean tuber weight of the hybrid progenies. They also demonstrated a substantial influence on the variation of total and marketable yield, chipping score and specific gravity. The linear response of 2x parents to 4x parents, however, also showed a substantial influence on the variation of the latter traits. The information on μ_i and B_i are useful in terms of choosing superior 2x parents and, together with gj of 4x parents, 4x—2x progenies for specific traits. The μ_i and B_i estimates of the six traits showed a complicated interrelationship to each other.