Results 61 to 70 of about 22,153 (316)
Joint Design of Phase Shift and Transceiver Beamforming for Intelligent Reflecting Surface Assisted Millimeter-Wave High-Speed Railway Communications [PDF]
, 2022 With the emerging demands of new communication services, the contradiction between capacity demand and spectrum shortage of railway communication systems becomes more severe.
Xiang Su +15 more
core +1 more source
Extent, characteristics and policy applications of Key Biodiversity Areas
Biological Reviews, EarlyView.ABSTRACT A global standard for the identification of Key Biodiversity Areas (KBAs) was published 10 years ago to provide a unified set of criteria for identifying ‘sites of significance for the global persistence of biodiversity’. We review the initiative's origins, the KBA identification process, characteristics of the current network, threats, policy
Stuart H. M. Butchart +57 more
wiley +1 more source
Shock and Vibration, 2019 At present, steel-spring floating slabs have been widely used in urban rail transit to reduce the influence of ground vibration caused by vehicle operation on the surrounding environment. As a core part of vibration reduction for floating slab track, the
Caiyou Zhao +5 more
doaj +1 more source
Applied Sciences, 2017 Rail welds are widely used in high-speed railways and short-wave irregularities usually appear due to limitations in welding technology. These irregularities can excite a high wheel/rail force and are regarded as the main cause of deterioration in track ...
Boyang An +4 more
doaj +1 more source
Performance of LTE in High Speed Railway Scenarios [PDF]
, 2013 GSM-Railways (GSM-R) is an obsolete mobile technology with a number of shortcomings in terms of capacity and capability. These shortcomings become a major issue for railways as GSM-R may limit the number of running trains in some areas and it cannot support advanced data services. Hence, alternative technologies, such as LTE, have to be considered as a
Aleksander Sniady, José Soler
openaire +2 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT Collaborations with nonprofits can enhance firms' legitimacy, yet the relationship between their communication and corporate environmental legitimacy remains poorly understood. Furthermore, research lacks an analysis of the communication of business‐nonprofit collaborations through multiple actors' perspectives.
Andrea Rizzuni +3 more
wiley +1 more source
Corporate ESG Greenwashing: Does Regulatory Proximity Matter?
Business Strategy and the Environment, EarlyView.ABSTRACT Environmental, social, and governance (ESG) greenwashing undermines sustainable development, yet the influence of regulatory proximity on oversight is understudied. By introducing the “distance decay effect” from geoeconomics into ESG misconduct research and using a sample of Chinese listed firms from 2009 to 2022, this study reveals a ...
Weiqi Zhao +4 more
wiley +1 more source
A Numerical Analysis of Ground Vibration Induced by Typical Rail Corrugation of Underground Subway
Shock and Vibration, 2019 A two-step approach is used to establish a numerical prediction model to study the impact of typical rail corrugation on ground vibration from an underground subway.
Mengting Xing +4 more
doaj +1 more source
International Journal of Antennas and Propagation, 2021 This paper considers target localization using time delay (TD) and angle of arrival (AOA) measurements in distributed multiple-input multiple-output (MIMO) radar.
Genling Huang, Yanlong Zhu
doaj +1 more source
Application of viscoelastic dampers for reducing dynamic response of high-speed railway bridges
, 2020 Due to the extensive development of high-speed railway lines which are operating at increasing velocities, the dynamic performance of railway bridges has become an important issue of scientific research.
Mohammed Bezzazi +5 more
core +1 more source