Results 121 to 130 of about 35,355 (308)

The Digital‐Sustainability Disconnect: A Test of Strategic Alignment in the Circular Economy Transition

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study challenges the common assumption that digital and sustainability transformations are naturally synergistic. Integrating signaling theory and the dynamic capability view, we argue that for many firms, particularly traditional SMEs, these initiatives are pursued on separate, unaligned strategic tracks, creating a “signaling‐substance ...
Nicolas Depetris‐Chauvin   +2 more
wiley   +1 more source

Recent development and its prospect of satellite communications

open access: yesTongxin xuebao, 2015
After analyzing the characteristics of satellite communications,the developing status of communication satellite platform,available frequency resource,as well as the related key techniques are summarized.Through introducing some typical satellite ...
Ke-chu1 YI   +3 more
doaj   +2 more sources

Cognitive radio for Ka band satellite communications

open access: yes, 2020
The satellite communication data traffic is increasing dramatically over the coming years. High throughput multibeam satellite networks in Ka band are potentially able to accommodate the upcoming high data rate demands.
Krause, J   +11 more
core  

Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays

open access: yes, 2007
Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll   +13 more
core   +1 more source

Sustainable Luxury: Understanding Consumer Responses to Purpose‐Driven Brand Strategies

open access: yesJournal of Consumer Behaviour, EarlyView.
ABSTRACT The study examines the dilemma faced by consumers in balancing the concepts of sustainability and luxury in the context of self‐gifting. The research is based on the Affect‐Behavior‐Cognition (ABC) framework and the Consumer‐Brand Identification (CBI) theory, which seeks to understand how the perceived sustainability–luxury fit and brand ...
Subhajit Pahari   +3 more
wiley   +1 more source

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

open access: yesCarbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal   +6 more
wiley   +1 more source

On the Integration of Random Access and DAMA Channels for the Return Link of Satellite Networks

open access: yes, 2013
Recent advances in Random Access (RA), improving throughput and loss rates, make the usage of such technique particularly interesting to complement Demand Assigned Multiple Access (DAMA) channels for the return link of satellite systems.
Munari, Andrea   +3 more
core   +1 more source

MXenes as a Versatile Platform for High‐Energy‐Density Asymmetric Supercapacitors

open access: yesCarbon Energy, EarlyView.
MXenes with high conductivity and tunable surface chemistry are reviewed as advanced electrodes for asymmetric supercapacitors. MAX‐phase synthesis, surface and interlayer engineering, defect modulation, and composite designs are discussed, highlighting enhanced ion transport, pseudocapacitance, energy density, cycling stability, and sustainable routes
Seul‐Yi Lee   +3 more
wiley   +1 more source

Partially adaptive baeam-forming maethods based on genetic algorithms

open access: yesTongxin xuebao, 2006
An improved genetic algorithm(GA) for real time beam-forming of onboard planar array was presented. In or-der to meet the real-time processing requirements, this GA was combined with partially adaptive beam-forming tech-niques in the phase-only adaptive ...
JIN Jun1, WANG Hua-li1, LIU Miao2
doaj  

Optical technologies for very high throughput satellite communications

open access: yes, 2019
Broadband internet access has become a vertex for the future development of society and industry in the digital era. Geostationary orbit (GEO) satellite can provide global broadband coverage, becoming a complementary solution to optical fiber network ...
Mata Calvo, Ramon   +12 more
core   +1 more source

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