Results 81 to 90 of about 851,914 (292)
Optimal Service Rate in Cognitive Radio Networks With Different Queue Length Information
IEEE Access, 2018 Cognitive radio (CR) technology effectively overcomes spectrum inefficiency by providing the capability that unlicensed users can share the radio frequency spectrum with licensed users. In this paper, we consider a CR system with heterogeneous users.
Sheng Zhu, Jinting Wang, Wei Wayne Li
doaj +1 more source
When Inefficiency Begets Efficiency [PDF]
Collective consumption decisions taken by the members of a household may prove inefficient. The impact of such inefficient household decisions on market performance is investigated.
Haller, Hans, Gersbach, Hans
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Advanced Materials, EarlyView.A large‐area, deformable high‐entropy‐ceramic (HEC)‐doped triboelectric nanogenerator with a trilayer architecture is developed, consisting of an HEC‐doped triboelectric layer, a graphite‐like textile charge‐storage layer, and stretchable carbon black electrodes.
Shengyou Li +13 more
wiley +1 more source
Advanced Materials, EarlyView.This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao +3 more
wiley +1 more source
Will centralized drug procurement policy improve enterprises’ total factor productivity?
Frontiers in Public HealthAgainst the backdrop of China’s healthcare reform challenges in drug pricing, this study investigates the impact of the National Centralized Drug Procurement (NCDP) policy implemented in 2018.
Xin Li, Ran Tao, Wenxue Zou, Yuning Jin
doaj +1 more source
An Institutional Approach to the Inefficiency in Economic Performance [PDF]
دولتپژوهیIran's economy has not experienced high growth rate during past decades despite huge revenue from oil export. This shows ineffectiveness of resource allocation in Iran economy.
Ali Sarzaiem
doaj +1 more source
Advanced Materials, EarlyView.The transition from cryogenic distillation to polymeric sorbents for light hydrocarbon purification is crucial for energy and environmental sustainability. The polymeric sorbents are engineered to separate gas mixtures based on their specific properties.
Kelechi Festus +9 more
wiley +1 more source
Sustainable and Multifunctional Natural Macromolecular Polymers for Aqueous Zn Metal Batteries
Advanced Materials, EarlyView.We comprehensively review the structure‐function relationships and regulatory mechanism of natural macromolecular polymers in stabilizing zinc anodes at the microscopic and mesoscopic scales. The interactions among polymer structures, optimization strategies, and regulatory mechanisms are discussed systematically summarizing recent related research ...
Yunuo Shi +13 more
wiley +1 more source
Latin American Journal of Solids and StructuresThe conventional Timoshenko piezoelectric beam finite elements based on First-order Shear Deformation Theory (FSDT) do not maintain the accuracy and convergence consistently over the applicable range of material and geometric properties.
Litesh N. Sulbhewar, P. Raveendranath
doaj +1 more source
Measurement and Sources of Technical Inefficiency in the Tunisian Citrus Growing Sector [PDF]
This paper investigates farm level technical inefficiency of production and its determinants in a sample of 150 citrus producing farms in Tunisia using a stochastic frontier production function approach applied to cross section data.
Messaoud, Emna B. +3 more
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