营养菌剂对绵羊增重作用的初步研究

采用几株细菌，用活菌组成营养菌剂，给绵羊口眼后观察其绵羊的增重作用。试验结果初步表明，Ｉ号菌剂每周口服一次或每半月口服一次，可以增加绵羊体重，放牧绵羊枯草期服用可减少绵羊体重下降。在一年期间绵羊服用２６次菌剂，未发现副作用产生。     

2012年国内外蜂王浆研究概况

2012年蜂王浆的研究呈现出遍地开花的强劲势头,国内外发表的蜂王浆相关的研究性论文及综述的总量达到近五年的最高值,其中被SCI收录的英文文献数量和被核心期刊收录的中文文献数量都较上年有大幅提高。国内外蜂王浆的相关专利公开数量总体保持稳定。本文对2012年国内外蜂王浆研究的进展进行了汇总和比较,并重点介绍了新近涌现的研究热点和研究成果。     

传统接地电阻测量误差分析与对策

从计量原理,误差理论和实际操作上提出一些方法,对防雷部门主要使用的接地电阻测量方法进行改良.     

Dyeing and fastness properties of natural dyes extracted from eucalyptus leaves using padding techniques

A natural dye extracted from eucalyptus leaves was applied to a silk and wool fabric by the use of two padding techniques, namely the pad-batch and pad-dry techniques under different conditions. Silk and wool fabrics dyed in a solution composed of eucalyptus extract from leaves showed a shade of pale yellow to brown. The exception was when the fabric was dyed with ferrous mordant, resulting in a shade of dark grayish-brown. The fastness properties ranged from good to excellent, while light fastness was fair to good.     

配电网检修计划优化实践

配电网设备检修能够及时发现常规试验或外观检查难以察觉的问题,使电网设备隐患或故障得到及时消除,通过合理有序安排检修工作,可有效提高电网的供电可靠性[1]。常规的检修计划制定过程通常包含分部门收集与汇总的过程,存在着潜在冲突与不合理之处,在实施之前,需要从技术与管理角度进行优化。     

Flame retarding PC/ABS resins having superior thermomechanical properties

Triphenyl phosphate (TPP) is well known to be one of the most effective flame retardants for acrylonitrile-butadiene-styrene copolymer (ABS) and its blending resins, such as polycarbonate (PC)/ABS, among various phosphorous-based compounds. However, TPP can also play a role as a plasticizer, which decreases the mechanical properties of PC/ABS resins at high temperature. Furthermore considerable amount of TPP has to be evaporated during molding process due on its much lower evaporation temperature. To overcome these shortcomings, we tried to immobilize TPP by grafting on butadiene moiety of ABS. FT-IR analysis of prepared TPP-grafted ABS (ABS-g-TPP) comparing with TPP, ABS and their blend confirmed that chemical reactions happened between TPP and ABS resins and it was attributed to the graft reaction of TPP onto butadiene moieties. Prepared ABS-g-TPP resins were blended with PC at various compositions to be prepared as testing specimens by injection molding. The physical characteristics such as mechanical properties, thermal stability, and flame retarding properties of the PC/ABS-TPP graft copolymer were analyzed through Vicat softening temperature, IZOD impact strength, transmission electron microscope, and UL94 flame retardation tests. Results showed that PC/ABS-g-TPP resin takes better thermomechanical properties than the existing PC/ABS resins at relatively low additional TPP amounts.     

间隙升温处理对芒果内源多胺和ACC含量的影响

紫花芒果在冷害低温中贮藏，对其进行间隙升温处理。结果表明：芒果发唾冷害以后，其内源ＳＰＤ和ＳＰＭ含量显著增加，但内源ＰＵＴ和ＣＡＤ含量的变化不显著；冷害还导致了ＡＣＣ的累积。间隙升温处理显著地减轻了芒果的冷害，延迟了多胺及ＡＣＣ含量的上升。     

植物病毒检测技术研究进展分析

植物病毒的危害性极大,而防治却存在一定的困难,因此我们一定要做好植物病毒的检测工作,从源头控制植物病毒。随着我国生物科学技术的迅速发展,植物病毒的检测方法不断得到改进和创新,很多新兴的植物病毒检测技术得到了很广泛的应用。本文首先探讨了植物病毒检测的基本概况,进而分别介绍了几种植物病毒检测技术的最新研究进展,最后探讨了如何提高植物病毒检测效率,更好的控制植物病毒。