Results 81 to 90 of about 220,031 (271)
, 2007 The network performance of a frequency division duplex and time division duplex (TDD) code division multiple access (CDMA)-based system is investigated using system parameters similar to those of the Universal Mobile Telecommunication System.
Blogh, J.S., Hanzo, L., Ni, S.
core +1 more source
Advanced Science, EarlyView.Inspired by the regulation mechanism of window blinds, this study designs an electromagnetic wave‐absorbing metamaterial. By introducing the magneto‐electric coupling concept and integrating it with an artificial intelligence‐based data‐driven collaborative optimization strategy, the material optimizes impedance matching performance and enhances loss ...
Zhe Wang +9 more
wiley +1 more source
Angewandte Chemie, EarlyView.This study reports a new hole‐transporting material (WD03) designed via molecular engineering to regulate defect passivation and energy‐level alignment in perovskite solar cells (PSCs). The propeller‐shaped structure ensures balanced charge transport and film quality. Consequently, WD03‐based devices deliver a high open‐circuit voltage of 1.194 V under
Guang Shao +17 more
wiley +2 more sources
A typology of cooperation strategies in the telecommunication industry: An exploratory analysis and theoretical foundations [PDF]
The value chain of the telecommunication industry is subject to a continuing disintegration which is caused by outsourced network operation, the provisioning of wholesale interfaces to competing service providers and the cooperative provisioning of ...
Düser, Michael +3 more
core
The Future of Mobile Industry [PDF]
, 2014 This paper discusses the future of mobile industry along with some of the background leading to the emergence of wireless technology. First, it gives an overview of today’s telecommunication network and the major differences between fixed wired ...
Adesuyi, R.S.
core
Vacancy‐Suppressed Garnet Electrolytes for Durable Solid‐State Batteries
Advanced Science, EarlyView.A Li/O‐rich sintering strategy effectively suppresses intrinsic lithium and oxygen vacancies in cubic garnet electrolytes, yielding a dense and stable microstructure. The vacancy‐controlled electrolyte exhibits enhanced interfacial and air stability, enabling long‐term solid‐state battery cycling and providing a general design principle for defect ...
Seokjae Hong +20 more
wiley +1 more source
Fiber-Optic Telecommunication Network Wells Monitoring by Phase-Sensitive Optical Time-Domain Reflectometer with Disturbance Recognition. [PDF]
Sensors (Basel), 2023 Zhirnov AA +9 more
europepmc +1 more source
Mobile telephony and internet growth: impacts on consumer welfare [PDF]
Innovation in digital technology has allowed rapid growth in mobile telephone and Internet adoption among consumers. The implication underlying the high rates of subscription growth is that consumers generally place a high valuation on telecommunication ...
Madden, Gary G +2 more
core +1 more source
Cascaded multiplexed optical link on a telecommunication network for frequency dissemination
, 2010 We demonstrate a cascaded optical link for ultrastable frequency dissemination comprised of two compensated links of 150 km and a repeater station.
Adil Haboucha +30 more
core +2 more sources
Advanced Science, EarlyView.A functionally driven variable‐cell size and gradient‐conductive coated TPMS structure was developed. Accordingly, stepwise longitudinal gradient impedance was realized, achieving absorption‐dominant EMI shielding (absorptivity≈0.85) with an EMI SET of ≈ 59 dB, for 10 mm‐thick composites. Further increasing the thickness of composites to 20 mm achieved
Abdallah Kamal +7 more
wiley +1 more source