综合色素沉着性状的科学研究,对可能与安义瓦灰鸡"五灰"表型有贡献的主效基因(基因座)的研究进展进行综合分析,阐明瓦灰鸡表型的潜在分子机制,有利于应用分子手段为瓦灰鸡的提纯复壮提供强有力的支持。

Based on the scientific researches of hyperpigmentation characters,this paper comprehensively analyzed the research progress in major genes( loci)which possibly had contribution to“Five-gray”phenotype in Anyi tile-like gray chickens,and ex-plored the potential molecular mechanism of causing“Five-gray”phenotype,in order to provide powerful support for the purifica-tion and rejuvenation of Anyi tile-like gray chickens through molecular means.

对瓦楞纸板的成形设计提出了一种新的优化设计方法。以正交试验方法设计试验方案，边压强度为试验指标，并研究了影响C型瓦楞纸板强度的因素。正交试验和方差分析结果表明，试验因素对C型瓦楞纸板强度的影响程度大小依次为瓦楞芯纸的定量、楞型、楞数和楞高，得出了不同参数对C型瓦楞纸板强度的影响规律。优化后的最佳组合参数为A2B2C3D1，即楞瓦楞芯纸定量为110g/m2、楞型为UV型、楞数为43个/30cm和楞高为3.4mm。

In this paper,an new optimum design method was proposed about the forming design of corrugated board.Based on orthogonal experimental method to design experimental programmers,index is edge crush strength test,and the factors that affect C flute corrugated board of strength was studied.By mean of orthogonal test and multiple factors variance analysis,how the test factors influence C flute corrugated board was studied,and the influence from high to low is:grammage of the medium,flute,number of flute and corrugation height,it concluded that the level of different factors on which influent extent and rule of strength of C flute corrugated board.The edge crush strength of corrugated board optimal factor level is A2B2C3D1.The technology parameters of C flute corrugated board were optimized as follows:grammage of the medium,110 g/m2;flute,UV;number of flute,43/30 cm;corrugation height,3.4 mm.

热固型反射隔热涂料是一种新型轻质薄层的建筑节能涂料。将该涂料涂刷在彩钢瓦夹2层保温棉板(总厚度50mm)的厂房顶面进行测试比较,试验结果表明,在外界环境温度为31.7~43.4℃时,涂刷热固型反射隔热涂料与未涂刷涂料的彩钢瓦夹保温棉板的顶面温差保持在13~21℃,底面的温差保持在6~7℃。

The thermosetting solar heat reflecting and insulation coating was used in the top surface of color steel tile mixed with two-layer heat preservation cotton, and it was found that when the outside temperature was 31.7~43.4℃, the temperature variations of the top surface which painted by this coating was 13~21℃, and was lower than that of the top surface without this coating. Meanwhile, the temperature variations of the bottom surface which was painted by this coating was 6~7℃ and was lower than that of the bottom surface without this coating.

印度某项目发生故障的是中速ZGM-113N型磨煤机减速机，JLX61Z型立式减速机是采用水平输入、垂直输出、锥形齿轮、行星齿轮的两级减速结构。在项目运行期间，其先后发生了3次减速机推力瓦损毁的事故。

The malfunction of a project in India is a medium speed coal mil reducer with the type of ZGM-113N. The JLX-61Z vertical reducer has double reduction structures with ho-rizontal input, vertical output, bevel gear, and planetary gear. During the running of the project, it has happened 3 times da-mage accidents of speed reducer thrust tile.

针对WDM网络的结构特征，选择具有代表性的有向双环网络G（N；r，s）进行研究。给出一组同余方程，用于快速计算其L-型瓦图的四个参数。根据L-型瓦的结构，给出了计算有向双环网络的网络负荷公式。实验结果分析表明：有向双环网络的一个无限族中可能存在多个负荷平衡的网络。对于有向双环网络G（N；r，s）的任意一个无限族中，其网络负荷的分布呈轴对称图形。网络负荷存在上界和下界，负荷达到下界值的网络称为最优负荷网络。该研究成果对于设计最优双环网络和提高网络通信效率起到决定性的作用。

Based on analyzing the structure feature of WDM networks, this paper chooses some representative directed double-loop networks to study. It also provides the solutions of some congruence equations to compute the parameter values of L-shaped tile. According to the structure of L-shaped tile, it provides a formula to compute its network load. The experiment results demonstrate that there may be many load-balanced networks. For anyone of infinite families for G(N;r,s) , the distribution of loads is axis symmetric figure, and there is a upper bound and a lower bound for loads. The network is called optimal load network when its load equals the lower bound. These results are important to design optimal double net-works and improve transmission efficiency about networks.