Modeling and dynamic simulation of pole trailer’s track on crooked road     

CHENG Bo  YANG Yu  LUO Xiong  LI Fei 《保鲜与加工》2012,(2):118-122

To ensure the transportation safety of oversize/overweight（OS/OW） products, the problem of the poor passing capability of pole trailer in turning should be solved. After analysis of the pole trailer’s static structure and dynamic turning characteristics, we deduce the iterative formula of the model’s key points coordinates. The dynamic computer simulation system of the pole trailer’s turning process is developed, which can provide guidance for the pole trailer to pass the crooked road smoothly during transport process.  相似文献   

Response of western Oregon (USA) stream temperatures to contemporary forest management     

Jeremiah D. Groom  Liz Dent 《Forest Ecology and Management》2011,262(8):1618-1629

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小黑杨应拉木上下侧cDNA文库的比较分析   总被引：1，自引：1，他引：0  

张凯旋  赵桂媛  刘关君  刘桂丰  杨传平  魏志刚 《北京林业大学学报》2011,33(3):8-13

为了研究小黑杨应拉木的形成机制和相关基因的表达情况,通过模拟重力对小黑杨茎生长产生影响后,进行了以下研究:以小黑杨茎应拉木未成熟木质部组织为材料,分别构建了弯曲茎上侧(TW)与下侧(OW)cDNA文库,共获得了6048条高质量的ESTs序列,代表了5007条单一基因,鉴定出437条可能与应拉木形成有关的ESTs.通过比...  相似文献