Now showing items 1-5 of 5

    • A two-dimensional architecture for end-to-end resource management in virtual network environments 

      Wang, Ning; Zhang, Yi; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Guo, Tao; Hu, Zheng; Zhang, Ping (2012-09)
      Article
      Restricted access - publisher's policy
      In recent years, various network virtualization techniques have been proposed for flexibly supporting heterogeneous services over virtual network platforms. However, systematic views on how virtual network resources (VNRs) ...
    • Atomically dispersed Fe in a C2N based catalyst as a sulfur host for efficient lithium–sulfur batteries 

      Liang, Zhifu; Yang, Dawei; Tang, Pengyi; Zhang, Chaoqi; Jacas Biendicho, Jordi; Zhang, Yi; Llorca Piqué, Jordi; Wang, Xiang; Li, Junshan; Morante Lleonart, Joan Ramon; Cabot, Andreu; Arbiol, Jordi (2021-02-04)
      Article
      Open Access
      Lithium–sulfur batteries (LSBs) are considered to be one of the most promising next generation energy storage systems due to their high energy density and low material cost. However, there are still some challenges for the ...
    • Fragility and glass-forming ability of the Ca-Mg-Cu system 

      Pineda Soler, Eloi; Zhang, Yi; Greer, A. L. (Elsevier, 2007-05-31)
      Article
      Open Access
      Elastic moduli of the glass and fragility of the corresponding supercooled liquid were found to be correlated in recently published results. In the present work, compositions within the Ca–Mg–Cu system are used to study ...
    • Inventory and pricing management in probabilistic selling 

      Zhang, Yi (Universitat Politècnica de Catalunya, 2019-01-25)
      Doctoral thesis
      Open Access
      Context: Probabilistic selling is the strategy that the seller creates an additional probabilistic product using existing products. The exact information is unknown to customers until they receive the probabilistic products. ...
    • Risk pooling through physical probabilistic selling 

      Zhang, Yi; Hua, Guowei; Cheng, T. C. E.; Zhang, Juliang; Fernández Alarcón, Vicenç (Elsevier, 2020-01)
      Article
      Open Access
      This paper investigates the impacts of a new type of probabilistic selling () where the retailer orders specific products and package some as a discounted physical probabilistic product (PPP) rather than merely a virtual ...