THE BASIC PROPERTIES OF CONDITIONAL EQUATION WITH ACCUMULATIVE STATE

Several aspects of the conditional equation derived from the accumulative equation are discussed in detail. The results indicate that the conditional equation not only is well consistent with the principles of electronegativity and absolute hardness equalization, but also satisfies the bonding of a full -prerequisite condition, e. g. two like electronic charge species repel and unlike attract each other'. In addition these principles are in the accumulative state. Mathematically, some other aspects of the conditional equation are worth studying based on the generalization of this equation.     

Study on Synthesis of High Quality Lactide

Polylactide,a biodegradable polymer, is an important biomedical meaterial. The synthesis of lactide from lactic acid is the key dimer of polylactide,unevitably affacting the polymerized process and the quality. Present work improves synthesis process of lactide. The synthesized factors are discussed, the reactive time is shortened and the quality of resultant is also raised.     

自卸车举升机构矩阵变换算法统一格式的研究

针对自卸车各种举升机构提出了矩阵变换算法的统一格式,推导出统一格式下各举升机构的变换矩阵,并开发了通用设计系统。该系统可计算任一举升时刻举升机构各铰接点位置和油缸推力。     

大兴安岭林区森工采运方式现状及发展趋势研究

本文论述了大兴安岭林区采运方式现状。分析了影响采运方式的因紊。提出了今后的发展方向。     

贮木场选址模型的研究

建立了一个贮木场选址的数学模型，这个模型将动态经济评价方法，运输网络和贮木场选址有机地结合起来。     

改善生猪宰前管理减少应激反应的措施

本文针对生猪宰前在饲喂、驱赶、运输、装卸、致晕和待宰等环节影响猪肉品质的主要应激因素,基于相关研究报道,提出了宰前禁食、温柔驱赶、科学运输和装卸、选择CO2击晕和最佳待宰环境、宰前添加抗应激药物等改善宰前管理减少应激反应的措施,最终强调合理宰前管理和致晕方法对保证猪肉质量至关重要。     

降解稻草纤维素真菌的初步研究

从自然腐烂的稻草秸秆中分离筛选出126霉菌菌株,并从中筛选出10株降解稻草秸秆能力较好的菌株。其中以A242,A251降解秸秆纤维素能力较强;A321,B311降解秸秆半纤维素能力较强。A242,B311菌株的稻草粉发酵降解液中还原糖质量分数分别达到94.104 4,90.627 4 mg/g稻草粉;A321,B321菌株的稻草粉发酵降解液中木糖质量分数分别达到11.821 0,12.121 9 mg/g稻草粉。可综合其各自发酵的优势,将其作为初始菌株进行进一步的优化。     

贮木场选址的数学模型

本文建立了贮木场选址的数学模型。这个模型将贮木场选址、木材运输费用、道路投资和贮木场投资等因素有机地结合起来，有助于解决贮木场选址中的优化问题。     

淫羊藿—蜂胶佐剂对雏鸡免疫器官早期发育和形态结构的影响

３日龄雏鸡按两个剂量组分别于皮下注射淫羊藿－蜂胶佐剂（简称淫蜂佐剂）０．２ｍＬ和０．４ｍＬ,２４日龄时重复注射１次,于７,１４,２１,２８,３５,４２日龄时随机抽样扑杀,采取免疫器官称重并进行光镜和电镜检查,比较不同剂量的淫蜂佐剂对雏鸡免疫器官的增重以及形态结构的影响。结果表明,淫蜂佐剂能显著促进雏鸡免疫器官的早期发育,并能刺激Ｔ,Ｂ淋巴细胞活化。重复注射后,可再次引起脾脏增重,且与剂量有相关性,