Results 71 to 80 of about 16,092 (254)
Implementation of a New and Modified Scheme of Butler Matrix for C-Band Applications with Enhanced Characteristics [PDF]
Radioengineering, 2020 In this paper, the structure of a miniaturized broadband 4 × 4 Butler matrix is presented. All components of the proposed feeding network are designed in a way that they have the smallest electrical size and acceptable performance in the C band.
M. Maleki +3 more
doaj
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Oxidized graphene rich in carboxylic acid groups obtained via a simple electrochemical exfoliation route is shown to tackle the main challenges of aqueous Zn‐ion batteries (AZIBs), specifically short Zn anode cycle life and sluggish cathode reaction kinetics.
Enrique Álvarez‐Rubiera +9 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A steady‐state numerical model is established for a continuous‐flow pH‐TRC for low‐grade waste heat recovery. Based on carbonate and bicarbonate electrolytes, the influences of operating conditions and electrode structure on pH‐driven power generation are clarified.
Jinpeng Hu +7 more
wiley +1 more source
Modelling Critical Impeding Factors of Gamification Adoption: An ISM‐MICMAC Analysis
Global Business and Organizational Excellence, EarlyView.ABSTRACT Gamification is a transformative technology that attracts consumers and motivates them toward desired actions through fun and engagement. Despite its growing popularity and influence on user behavior, gamification faces significant challenges in acceptance and implementation due to behavioral, technological, economic, and regulatory factors ...
Wamika Sharma +4 more
wiley +1 more source
Strategic Change, EarlyView.ABSTRACT A key challenge in public procurement management is balancing equity and efficiency in government procurement. Based on longitudinal data on more than 120,000 US federal service and construction contracts awarded between 2008 and 2018 across over 500 federal agencies, we examine how agency‐level dynamic capabilities shape the performance of ...
Matilde Cappelletti +3 more
wiley +1 more source
Array Antenna Feeding Network Design for 5G MIMO Applications
Electrica, 2019 Emerging smart antenna systems requiredifferent beam patterns of multiple antennas. Although adjustable phaseshifters are mostly used in continuous-beam systems, the Butler matrix is usedin switching-beam systems due to its low cost and easy fabrication.
Nurhan Türker Tokan
doaj +1 more source
The Journal of Wildlife Management, EarlyView.When compared to resident lizards of the corresponding age class, juvenile headstarted Texas horned lizards soft‐released into an urban population exhibited more favorable responses to short‐term translocation objectives (i.e., daily movement rates, home range sizes, and survival rates) than did conspecifics headstarted to the adult age class ...
Forrest P. Nielsen +7 more
wiley +1 more source
Insertion Loss and Phase Compensation Using a Circular Slot Via-Hole in a Compact 5G Millimeter Wave (mmWave) Butler Matrix at 28 GHz. [PDF]
Sensors (Basel), 2022 Md Jizat N +4 more
europepmc +1 more source
Land Degradation &Development, EarlyView.ABSTRACT As the global tourism industry confronts the existential imperatives of the Anthropocene, the remediation of degraded landscapes through regenerative economic models has emerged as a critical frontier in sustainability science. This research presents a rigorous empirical examination of the “restoration–revenue” paradigm, investigating the ...
Xin Sui, Tianchang Chen
wiley +1 more source
IEEE AccessThe paper proposes a four-directional beamforming switched antenna system based on Butler matrix for 28 GHz mmWave. It is made up of a 90-degree coupler, a crossover, and a 45-degree phase shifter.
Ming-An Chung +2 more
doaj +1 more source