蒜薹产贮配套技术研究

１９８６～１９９３年研究蒜薹产贮配套技术,在太原地区秋播覆盖栽培获得优质蒜薹,打破了以往山西临汾以北不产蒜薹的界限。采收时在田间进行挑选加工,解决了异地调运、产贮脱节的若干难题。小装量、低ＣＯ２和活动硅窗贮藏,适合地产蒜薹的生理特点,保鲜效果良好。     

运用锚引物扩增新城疫病毒鹅源分离株基因组末端序列

在T4 RNA连接酶的作用下,将人工合成的锚引物直接与新城疫病毒（NDV）鹅源毒株ZJ1株的基因组5′末端的反转录产物及NDV基因组3′末端直接相连,然后用聚合酶链反应（PCR）和RT－PCR分别快速扩增基因组5′末端和3′末端,测序结果表明：3′末端的Leader序列为55nt,5′末端的trailer序列为114nt。将该序列与GenBank报道的NDV鸡源毒株的相应序列相比,XJ1株与6个鸡源NDV毒株的Leader和trailer序列的同源性分别为83.6%-92.7%和60.5%-63.2%。序列比较结果表明：该鹅源毒株与鸡源毒株在基因组3′端调控区有较高的同源性,而在基因组5′端的调控区同源性则较低。     

预应力锚索抗滑桩在边坡治理中的应用

抗滑桩、预应力锚索抗滑桩等是当前滑坡治理工程中常用的措施,本文以郴州市流星岭滑坡治理工程实例为背景,对影响边坡稳定性的因素进行了分析,对常用的一些边坡稳定性分析方法适用性及优缺点进行了探讨;并进行了边坡滑体的防治技术分析研究,详细讨论比较了抗滑桩和预应力锚索抗滑桩在滑坡治理中的效果。     

我国蒜薹产业2010年回顾和2011年展望

从2010年全国各主产区蒜薹收购价格比较及收贮与销售蒜薹情况的回顾,分析了气候、蔬菜市场、大蒜种植等影响我国蒜薹产业经营状况的主要因素及存在的问题,展望了2011年蒜薹产业的发展前景.     

A Determination Method of Anchorage Length of Compression Anchor

The distribution of the axial stress and shear stress on the anchorage segment and the formulation for calculating the anchorage length were derived based on the stress analysis of the anchorage segment of compression anchor. And the effects of parameters, including the elastic modulus, poisson ratio, cohesion, and internal fiction angle of rock mass, on the anchorage length were studied. The results show that the anchorage length decreases with the increase of the elastic modulus, cohesion and internal friction angle of rock mass; and the anchorage length increases linearly but limited with increasing of poisson ratio of rock mass; and it also increases with increasing load.     

转Bt基因抗虫红麻福红952后代的分子杂交验证

利用花粉管通道法将抗虫质粒DNA导入受体红麻品种福红952,在受体品种中获得Bt抗虫目的基因的表达.分别用PCR和Southern杂交技术,对所转化的红麻转基因4个世代的株系进行分子验证,结果表明：4个世代中都检测到B t抗虫目的基因片段,说明外源基因已经整合到红麻的基因组中并获得了稳定遗传.     

油肥1号薹-肥两用技术研究初探

以油菜品种油肥1号为材料,采用移栽和直播2种方式对其薹-肥两用的栽培模式进行研究,并以白菜薹为对照,对其菜薹营养成分和矿物质含量进行测定。结果表明,移栽较直播采收方便,菜薹采收期长,产量高,是薹-肥两用油菜宜采用的栽培方式;油肥1号菜薹的干物质量、可溶性固形物及总糖含量明显高于白菜薹,其他指标与白菜薹相当。     

Study on Anchorage and Failure Mechanism of Mortar Bolt

Anchorage system can transfer or enhance intensity and steady ability of the geotechnical project. Based on the simplification of a project, the process of anchorage and failure of bolt is simulated in laboratory. The analytical expressions of stressed bolt in elastic rock under axial symmetry condition are deduced. The pilot study of the relativity of anchorage stress and acoustic parameter is discussed by ultrasonic transmission way in this paper.     

气温变化与蒜薹价格波动的经济学分析

在对江苏丰县、沛县蒜薹生产区多年考察的基础上,发现该地气温与蒜薹价格存在密切相关现象.对2004、2006年适时产量与每日价格等数据运用计量分析和比较的方法进行了调查和统计.结果显示,在蒜薹盛产期,气温导致蒜薹产量正向波动,蒜薹短期产量导致价格反向运动.从而导出气温通过作用于产量,最终影响蒜薹价格的结论.据此提出了兴建冷库,增加蒜薹品种以错开收获期等提高蒜农收入的发展对策.     

Experiment on gas explosion detonated by the pull out (broken) sparks of anchor rope under dynamic loading

By using the specially designed experimental device for anchor rope impact tensile, a series of experiments on the possibility of gas explosion detonated by the pull out (broken) sparks of 15.24 mm, 17.8 mm and 21.6 mm anchor rope have been performed on the condition that the gas concentration and oxygen concentration are within the range of explosion limit. The results show that there are 3 failure forms of anchor rope when it is under the action of dynamic load, i.e. tensile failure, pull out and pull failure, and the breakages all occur in the fixed-anchorage. Using infrared thermal imaging apparatus to measure the temperature of the broken sparks of anchor rope, the result shows that the maximal temperature of the pull out (broken) sparks of anchor rope is far less than the minimum temperature of gas explosion (650~750 ℃) and the existence time of sparks is far shorter than the sensitive period of gas explosion. The sparks induced by any failure forms of 15.24 mm,17.8 mm and 21.6 mm anchor rope can’t detonate the gas.