不同预混剂和蛋氨酸水平对罗曼鸡产蛋性能的影响

选择２４３ 日龄健康罗曼商品蛋鸡９７２ 只,随机分成９ 组,每组重复３ 次,分别饲喂３种由多种维生素、矿物质微量元素及抗生素等配合而成的复合预混剂和３ 种不同的蛋氨酸含量的日粮,研究二者对主要产蛋性能指标的影响。结果表明：３ 种不同复合预混剂和蛋氨酸水平,对罗曼蛋鸡的产蛋率无明显影响;而添加１．０％ 或１．２％ 预混剂组,产蛋总重显著高于添加０．８％ 预混剂组;在９ 个水平组合中,饲喂１．０％ 预混剂和０．３７％ 蛋氨酸,１．０％ 预混剂和０．４１％ 蛋氨酸,１．２％ 预混剂和０．３９％ 蛋氨酸水平的日粮产蛋重为最高,显著高于其它各组。     

唐菖蒲引种筛选及栽培技术研究

引进２９个切花用唐菖蒲品种,筛选出适合太原地区栽培的优良品种１５个。通过提前和推后栽植、日光节能温室栽培、小拱棚技术、温室育苗大田移栽及温室栽培等综合技术的运用进行花期调控,使太原地区唐菖蒲鲜花供应期由４０天左右延长到１８０天。     

豆粕替代鱼粉对罗氏沼虾生长和消化酶活性的影响

用豆粕替代鱼粉作为收白源制成５种近似等比能（１５．５－１８．２ｋＪ．ｇ＾－１）、等蛋白含量的饲料,其中用豆粕蛋白分别替代鱼粉蛋白质量的２５％,５０％,７５％,和１００％,对照饲料全部以鱼粉作为蛋白源。     

The concept of effective emissivity of nonisothermal mixed pixel and its test

Based on two preconditions, the local thermal equilibrium is satisfied and emissivities do not change with temperature, the concept of component effective emissivity of nonisothermal mixed pixel has been put forward and then the radiant directionality model of nonisothermal mixed pixel constructed from it. Our study shows that the component effective emissivity is associated with geometric structure, optical properties of target, and viewing angle, but does not depend on the component temepratures. The component temperatures can only change the ratio of component radiance to the total radiance of the mixed-pixel. The total effective emissivity of this pixel is the complement of its directional-hemisphere reflectance. After the simulation of component effective emissivity of the discrete cones and continuous vegetation canopy (winter wheat) by the Monte Carlo method, our model of radiant directionality of nonisothermal mixed pixel have been proved by lab and field measurements.     

Crystal structure and magnetism of the binuclear Gd(III) complex Gd2(C12H8N2)2(C6H5COO)6

In the medium of H₂O, C₂H₅OH and HAC, the reaction of Gd(NO₃)₃·6H₂O with C₆H₅COONa and C₁₂H₈N₂ produced a novel binuclear Gd(III) complex in formula [Gd₂(C₁₂H₈N₂)₂ (C₆H₅COO)₆]. Crystallographic data: crystal system, triclinic; space group, P1; unit cell dimensions, a=1.191 9(2) nm,b =1.244 2(2) nm,c = 1.080 4(2) nm, α = 93.57(3)°, β= 113.33(3)°, γ= 105.06(3)°, Z=l. The finalR =0.037 6. The magnetic measurement of the crystal powder in the temperature region of 1.5–300 K shows that this complex possesses antiferromagnetic property with fitting magnetic parametersJ = −0.471 andg =1.975.     

Influence of microgravity on protein crystal structures

Structural determination and comparison of microgravity and ground grown protein crystals have been carried out in order to investigate the effect of microgravity on the structure of protein crystals. Following the structural studies on the hen egg-white lysozyme cystals grown in space and on the ground, the same kind of comparative studies was performed with acidic phospholipase A₂ crystals grown in different gravities. Based on the results obtained so far, a conclusion could be made that microgravity might not be strong enough to change the conformation of polypeptide chain of proteins, but it may improve the bound waters’ structure, and this might be an important factor for microgravity to improve the protein crystal quality. In addition, the difference in the improvement between the two kinds of protein crystals may imply that the degree of improvement of a protein crystal in microgravity may be related to the solvent content in the protein crystal.     

8mm雷达中基于并口的高速数据传输研究

对8mm战场侦察雷达中的ADSP-21060和计算机并口的高速数据传输的电路设计问题进行研究。利用新型计算机并口技术EPP(增强型并口)及先进先出存储器进行设计。该电路设计实现了ADSP-21060和计算机并口之间的高速传输,同时该电路具有占用ADSP-21060和计算机时间少的特点。该电路设计已成功地应用到8mm战场侦察雷达信号处理系统中,且可以应用到利用并口进行通讯的其它课题中。     

基于GSFLA的电力系统谐波估计算法

针对非线性动态负载引起的谐波难于检测的问题,提出了一种新的谐波估计算法。该算法借助蛙跳算法（SFLA）的全局搜索性对未知参数进行优化估计;引入高斯分布估计算法（GEDA）的思想,对蛙群中适应度好的蛙进行分布估计再生,提高收敛速度;结合进化代数改进蛙跳规则以改善局部搜索性能。实验仿真数据显示,与PSO算法相比,振幅平均估计精度提高了5．3％,相角平均估计精度提高了4．7°。研究表明,该算法（GSFLA）用于电力系统的谐波估计有更快的收敛速度和估计精度。     

城市拆除爆破工程风险评价与预测

为实现对城市拆除爆破工程风险的动态分析,构建城市拆除爆破安全评价指标体系,从爆区环境、安全管理、设计安全及施工安全4个方面提出16个评价指标;结合物元分析与层次分析法(AHP)进行合成,确定各评价指标权重,并以五元联系数作为评价工具,构建城市拆除爆破工程安全评价预测模型;最后,以某城市拆除爆破工程为例,进行评价和预测分析。结果表明:基于物元分析和五元联系数的城市拆除爆破工程安全评价预测模型实现了安全评价时静态与动态的结合,评价结果符合专家思维,在实际应用中具有可操作性。     

第三方物流顾客感知质量评价模型与指标体系实证研究

在专家和顾客访谈的基础上,参考INDSERV量表制定包含十六个题项的第三方物流顾客感知质量调查问卷,然后收集数据并利用SPSS11.5软件进行探索性因子分析,抽取出四个第三方物流顾客感知质量评价公因子,分别命名为潜在质量、硬的过程质量、软的过程质量和结果质量.再使用LISREL8.54统计软件作验证性因子分析和二阶因子分析,结果表明潜在质量、硬的过程质量、软的过程质量和结果质量同属于一个高阶变量,称之为第三方物流顾客感知质量.基于此,最终确定＂第三方物流顾客感知质量评价模型＂及其指标体系.