Compared with the undamaged Phyllostachys edulis,the wood mechanical properties of bended bamboo for 4-year-old by frost and snow were studied. It was shown that the wood mechanical properties of bended Phyllostachys ...Compared with the undamaged Phyllostachys edulis,the wood mechanical properties of bended bamboo for 4-year-old by frost and snow were studied. It was shown that the wood mechanical properties of bended Phyllostachys edulis were equivalent to or a little less than those of the undamaged bamboo. The bending strength(MOR) of moderately bended bamboo and the modulus of elasticity in static bending(MOE) of heavily bended bamboo were 125.8 MPa and 10 978.9 MPa respectively in the culm base,and compared with those of undamaged Phyllostachys edulis wood,the differences were significant. However,the other mechanical properties including tensile strength parallel to grain,compressive strength parallel to grain and shearing strength parallel to grain etc. Between bended and undamaged bamboo wood,the difference were not significant. The study results could provide data supports for the proper ways of rational cutting,process and utilization of bended Phyllostachys edulis wood.展开更多
为探究基于专用短程通信(Dedicated Short Range Communication,DSRC)的港口运输车路协同的应用前景,对DSRC技术及其典型应用场景进行介绍,分析该技术的优缺点。阐述基于DSRC技术的港口车路协同的技术架构和应用场景,通过对比DSRC与蜂...为探究基于专用短程通信(Dedicated Short Range Communication,DSRC)的港口运输车路协同的应用前景,对DSRC技术及其典型应用场景进行介绍,分析该技术的优缺点。阐述基于DSRC技术的港口车路协同的技术架构和应用场景,通过对比DSRC与蜂窝车联网技术,指出DSRC面临的挑战并提出应对建议。分析认为目前基于被动式DSRC的车路协同技术在港口车辆身份认证方面具有一定的应用,但不能完全满足自动驾驶车辆与智能道路间实时信息交互的需求;我国已在DSRC标准层面针对自动驾驶需求明确实时信息交互方式,因此在DSRC技术层面还会不断演进,以满足更广泛的车路协同需求。展开更多
文摘Compared with the undamaged Phyllostachys edulis,the wood mechanical properties of bended bamboo for 4-year-old by frost and snow were studied. It was shown that the wood mechanical properties of bended Phyllostachys edulis were equivalent to or a little less than those of the undamaged bamboo. The bending strength(MOR) of moderately bended bamboo and the modulus of elasticity in static bending(MOE) of heavily bended bamboo were 125.8 MPa and 10 978.9 MPa respectively in the culm base,and compared with those of undamaged Phyllostachys edulis wood,the differences were significant. However,the other mechanical properties including tensile strength parallel to grain,compressive strength parallel to grain and shearing strength parallel to grain etc. Between bended and undamaged bamboo wood,the difference were not significant. The study results could provide data supports for the proper ways of rational cutting,process and utilization of bended Phyllostachys edulis wood.
文摘为探究基于专用短程通信(Dedicated Short Range Communication,DSRC)的港口运输车路协同的应用前景,对DSRC技术及其典型应用场景进行介绍,分析该技术的优缺点。阐述基于DSRC技术的港口车路协同的技术架构和应用场景,通过对比DSRC与蜂窝车联网技术,指出DSRC面临的挑战并提出应对建议。分析认为目前基于被动式DSRC的车路协同技术在港口车辆身份认证方面具有一定的应用,但不能完全满足自动驾驶车辆与智能道路间实时信息交互的需求;我国已在DSRC标准层面针对自动驾驶需求明确实时信息交互方式,因此在DSRC技术层面还会不断演进,以满足更广泛的车路协同需求。
