染色体配对的研究

以直接从显微镜下采集的染色体图像为原始图像研究了染色体自动解析系统的部分处理软件,其中包括了染色体长度和着丝粒指数的求取,染色体的分类和配对。     

染色体配对的研究

以直接从显微镜下采集的染色体图像为原始图像研究了染色体自动解析系统的部分处理软件,其中包括了染色体长度和着丝粒指数的求取,染色体的分类和配对.     

Fabrication and Tissue Anchoring Performance of Nylon and Polypropylene Barbed Surgical Sutures

Barbed surgical sutures have attracted worldwide attention in recent years. The plurality of barbs projecting out and penetrating into surrounding tissue eliminates the need for tying a knot. In the current study,nylon and polypropylene( PP) barbed sutures with two different barb geometries designed to anchor in porcine skin and tendon tissues were fabricated by a specially designed mechanical cutting machine. The tensile properties were compared between the barbed and unbarbed control sutures. The in vitro tissue anchoring ability was measured by two tissue /suture pullout tests,one for skin and the other for tendon tissue. Regardless of the type of tissue,the PP barbed suture with its higher modulus had a superior anchoring ability. Given the same suture material,improved anchoring performance was shown in tendon tissue.     

无线网络编码随机优先级检测调度算法

提出了一种针对中继网络编码的随机优先级检测调度(REDP)算法.中继节点根据数据流优先级和网络拥塞程度调整丢包概率,通过主动丢包避免严重网络拥塞,降低传输时延和系统能耗.建立了2条数据流中继网络编码的Markov链模型,推导了数据流的丢包率和时延,理论分析表明,在流媒体服务质量(QoS)规定的丢包率约束下,REDP算法能有效降低等待时延,更利于视频、语音等实时业务流的传输.数值仿真结果表明,与PNCP算法相比,REDP算法能够有效增加网络编码机会,从而降低了系统能耗.