高等级公路生物护坡工程模式设计

根据高等级公路边坡的土体特性 ,将边坡分成硬质材料覆盖坡面、松软基质坡面、紧实基质坡面三种类型 ,按照不同类型边坡的土壤组成结构、坡角大小及物种选择的理论依据和生物护坡工程实践 ,提出了各类型的边坡应采取的绿化施工手段及物种选择与组合搭配的一般规律     

潜江小城镇景观规划

潜江小城镇的水资源丰富但开发落后，绿系统不完善，街景缺乏工艺性。在对现状调查分析的基础上，提出了对过境公路、水体、街景进行动感空间、情感空间规划的建议，对乡土化设计、恢复性设计进行了探讨。     

如何加强市场经济条件下工程造价管理

本文根据目前工程造价管理的实践，指出了存在的问题，并提出了如何加强市场经济条件下建设工程造价管理的四点具体意见，很有现实意义和指导意义。     

振动深松鼠道犁的试验分析

石河子及周围垦区的土壤粘重且呈盐碱性,由于犁底层的存在,土质很难得到改善。而深松作业则是打破犁底层的主要农业技术措施之一。为此,论述了IZSS-600-3型振动深松鼠道犁的构造和工作原理,分析了试验因素对试验指标的影响,为机具今后在农业生产中的应用和推广提供了依据和参考。     

谈高层建筑疏散楼梯设计中的常见错误

本文对高层建筑疏散楼梯在设计中的一些错误提出了自己的观点及解决办法;阐述了疏散楼梯在设计中的重要性,必须引起设计者的足够重视。     

谏壁发电厂泵站改造实践

为解决渣浆泵在运行时轴封水供应困难的问题，计算了谏壁发电厂松林山泵站的装置特必,天详细分析论证的基础上，确定了泵站的改造方案，进行了叶轮的优化设计。     

Effect of mate selection on fuzzy selective mating criteria in closed dairy multiple ovulation and embryo transfer nucleus programs

In order to control rates of response and inbreeding, mate selection using fuzzy selective mating criteria (FMC) was investigated in adult multiple ovulation and embryo transfer nucleus schemes for dairy cattle. Stochastic simulation was used to model the closed nucleus scheme. This mate selection was examined in four alternative mating and male selection schemes: (i) a hierarchical scheme; (ii) a hierarchical sibship scheme (two males per sibship); (iii) a factorial scheme (two sires per dam); and (iv) a factorial sibship scheme (two males per sibship and two sires per dam). Genetic response and inbreeding rate tended to be reduced by increasing the trade-off parameter of FMC between the expected breeding value and inbreeding of progeny. Inbreeding rates in all schemes were reduced by reducing the variance of family size through selection and the average coancestry of mating pairs through mate allocation.     

Factors affecting agonistic interactions of pigs after regrouping in pens with a box

To determine the factors affecting agonistic interactions after regrouping, 24 pigs were allocated to six pens that each had a box. Half of the pigs were experienced in using the box. One castrated male and one female pig were transferred from each pen to another pen at random. The number of pigs attacked was particularly large for the pigs that had no experience in using the box and were transferred on the first day ( P <  0.05). The duration of access to the box was markedly longer for the pigs that had experience in using the box and were not transferred on the first day ( P <  0.05). The number and duration of attacks were significantly larger and longer toward unfamiliar individuals than toward familiar ones (both P < 0.01). The number of attacks toward the same sex was significantly larger than toward the opposite sex ( P <  0.01). A negative correlation was found between the number of agonistic interactions on the first day and the range of body weights in the pen mates ( r =  −0.78, P  = 0.07). In conclusion, regrouping with unfamiliar individuals should be avoided, but when unavoidable, the following methods are recommended to reduce agonistic interactions: (1) ensure the intruders are experienced in using a box, (2) move experienced intruders in with residents that have no experience in using a box, (3) mix different sexes, and (4) have wide variations in body weights in a pen.     

浅议工程量清单计价的造价管理

本文较详细地论述了工程量清单计价的意义、内容、合理性及可行性,并阐明其在实际运用中应注意的问题。     

系统工程在畜牧业中的应用

本文主要从畜牧业发展战略与规划、遗传育种、营养、养猪、养禽、养羊、养牛等方面阐述了系统工程近二十年来在畜牧业的应用。