Results 111 to 120 of about 1,859,997 (304)
Programmable rate modem utilizing digital signal processing techniques [PDF]
The engineering development study to follow was written to address the need for a Programmable Rate Digital Satellite Modem capable of supporting both burst and continuous transmission modes with either binary phase shift keying (BPSK) or quadrature ...
Bunya, George K., Wallace, Robert L.
core +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT This study investigates the challenges and support needs of small and medium‐sized enterprises (SMEs) in adopting standardized sustainability reporting, taking the European Sustainability Reporting Standards (ESRS) as an empirical case of formal standardization.
Filippo Cavaliere +2 more
wiley +1 more source
Coded spread spectrum digital transmission system design study [PDF]
Results are presented of a comprehensive study of the performance of Viterbi-decoded convolutional codes in the presence of nonideal carrier tracking and bit synchronization.
Heller, J. A. +2 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang +5 more
wiley +1 more source
SPS pilot signal design and power transponder analysis, volume 2, phase 3 [PDF]
The problem of pilot signal parameter optimization and the related problem of power transponder performance analysis for the Solar Power Satellite reference phase control system are addressed.
Chie, C. M. +2 more
core +1 more source
Secretopathies emerge as a new class of neurocristopathies
Developmental Dynamics, EarlyView.Abstract Neural crest cells are a transient embryonic population of cells that give rise to a wide range of structures, including craniofacial cartilage and bone, peripheral neurons and glia, as well as components of the cardiac outflow tract, among others.
Amanda Teixeira +3 more
wiley +1 more source
Coherent versus noncoherent signaling for satellite-aided mobile communications [PDF]
The use of coherent versus noncoherent communications is an unresolved issue for the mobile satellite community. Should one select the more robust but less efficient noncoherent strategy for communications over satellite-aided mobile channels, or does ...
Davarian, F., Sumida, J.
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Energy Science &Engineering, EarlyView.This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi +5 more
wiley +1 more source
Shuttle/TDRSS modelling and link simulation study [PDF]
A Shuttle/TDRSS S-band and Ku-band link simulation package called LinCsim was developed for the evaluation of link performance for specific Shuttle signal designs. The link models were described in detail and the transmitter distortion parameters or user
Biederman, L. +3 more
core +1 more source
Energy Science &Engineering, EarlyView.Ultra‐lean H2 micro‐combustor performance is boosted through regulated O2 enrichment and inlet preheating. A 16‐case Taguchi study (ϕ = 0.3) shows: controlled enrichment and heating increase radiative output and efficiency, but excessive O2/temperature causes flashback.
Anouar Benzitouni +4 more
wiley +1 more source