维普中文期刊产品整合服务
6篇 您的检索式:作者名="Xinda Lu"
    题名 作者 年代 出处 被引量
1Conversion of surgically verified unresectable to resectable hepatocellular carcinoma显示文摘Zhaoyou Tang Yeqin Yu Zengchen Ma Rong Yang Xinda Zhou Kangda Liu Jizhen Lu Yanming Bao Zhiying Lin Binghui Yang 1989Chinese Journal of Cancer Research1989,,3:1
2The diversity and ecological significance of microbial traits potentially involved in B_(12) biosynthesis in the global ocean显示文摘Cobalamin(B_(12)),an essential nutrient and growth cofactor for many living organisms on Earth,can be fully synthesized only by selected prokaryotes in nature.Therefore,microbial communities related to B_(12) biosynthesis could serve as an example subsystem to disentangle the underlying ecological mechanisms balancing the function and taxonomic make-up of complex functional assemblages.By anchoring microbial traits potentially involved in B_(12) biosynthesis,we depict the biogeographic patterns of B_(12) biosynthesis genes and the taxa harboring them in the global ocean,despite the limitations of detecting de novo B_(12) synthesizers via metagenomes alone.Both the taxonomic and functional composition of B_(12) biosynthesis genes were strongly shaped by depth,differentiating the epipelagic zones from the mesopelagic layers.Functional genes related to B_(12) biosynthesis were relatively stably distributed across different oceans,but the taxa harboring them varied considerably,showing clear functional redundancy among microbial systems.Microbial taxa carrying B_(12) biosynthesis genes in the surface water were influenced by environmental factors such as temperature,oxygen,and nitrate.However,the composition of functional genes was only weakly associated with these environmental factors.Null model analyses demonstrated that determinism governed the variations in B_(12) biosynthesis genes,whereas a higher degree of stochasticity was associated with taxonomic variations.Significant associations were observed between the chlorophyll a concentration and B_(12) biosynthesis,confirming its importance in primary production in the global ocean.The results of this study reveal an essential ecological mechanism governing the assembly of microbes in nature:the environment selects for function rather than taxonomy;functional redundancy underlies stochastic community assembly.Jiayin Zhou Wei Qin Xinda Lu Yunfeng Yang David Stahl Nianzhi Jiao Jizhong Zhou Jihua Liu Qichao Tu 2023mLife2023,2,4:0
3Dissipative Kerr single soliton generation with extremely high probability via spectral mode depletion显示文摘Optical Kerr solitons generation based on microresonators is essential in nonlinear optics.Among various soliton generation processes,the single soliton generation plays a pivotal role since it ensures rigorous mode-locking on each comb line whose interval equals the free spectral range(FSR)of the microresonator.Current studies show that single soliton generation is challenging due to cavity instability.Here,we propose a new method to greatly improve single soliton generation probalility in the anomalous group velocity dispersion(GVD)regime in a micro-ring resonator based on silicon nitride.The improvement is realized by introducing mode depletion through an integrated coupled flter.It is convenient to introduce controllable single mode depletion in a micro-ring resonator by adjusting the response function of a coupled flter.We show that spectral mode depletion(SMD)can signifcantly boost the single soliton generation probability.The efect of SMD on the dynamics of optical Kerr solitons generation are also discussed.The proposed method ofers a straightforward and simple way to facilitate robust single soliton generation,and will have an impact on the research development in optical Kerr soliton generation and on-chip optical frequency mode manipulation.Boqing Zhang Nuo Chen Xinda Lu Yuntian Chen Xinliang Zhang Jing Xu 2022Frontiers of Optoelectronics2022,15,4:0
4A scheduling strategy for finite element analysis on the computational grid显示文摘The computational grid provides a promising platform for the deployment of various high-performance computing applications. A grid system consists of heterogeneous resource domains, while the computational tasks of finite element analysis may differ in demand of computing power. The cost-effective utilization of resources in the grid can be obtained through scheduling tasks to optimal resource domains. Firstly, a cost-effective scheduling strategy is presented for finite element applications. Secondly, aiming at the conjugate gradient solver stemming from finite element analysis, a performance evaluation formula is presented for determining optimal resource domains, which is derived from phase parallel model and takes the heterogeneous characteristic of resource domains into account. Finally, experimental results show that the presented formula delivers a good estimation of the actual execution time, and indicate that the presented formula can be used to determine optimal resource domains in the grid environment.Weng Chuliang(翁楚良) Lu Xinda Yue Ying 2005High Technology Letters2005,11,3:0
5Search by shortcuts in P2P scientific collaboration system显示文摘A P2P scientific collaboration is a P2P network whose members can share documents, co-compile papers and codes, and communicate with each other instantly. From the simulation experiment we found that P2P collaboration system is a power-law network with a tail between -2 and -3.We utilized the algorithm that searches by high-degree shortcuts to improve the scalability of p2p collaboration system. The experimental result shows that the algorithm works better than random walk algorithm.Deng Qianni(邓倩妮) Chen Li Lu Xinda Li Minglu 2005High Technology Letters2005,11,3:0
6Efficient Data-parallel Computations on Distributed Systems显示文摘Task scheduling determines the performance of NOW computing to a large extent. However, the computer system architecture, computing capability and system load are rarely proposed together. In this paper, a biggest heterogeneous scheduling algorithm is presented. It fully considers the system characteristics (from application view), structure and state. So it always can utilize all processing resource under a reasonable premise. The results of experiment show the algorithm can significantly shorten the response time of jobs.曾志勇 LU Xinda 2002High Technology Letters2002,8,3:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费