Results 131 to 140 of about 41,452,026 (246)

Modified Costas Loop for Carrier Phase Tracking in GPS Receivers [PDF]

open access: yesRadioengineering
The carrier phase received at the receivers of the Global Positioning System (GPS) links is used to detect navigation data and to precisely determine the position, speed and time corresponding to the user's equipment.
A. M. Pereira de Lucena   +1 more
doaj  

Ultrafast RF Spectrum Analyzer Assisted by Optical Short‐Time Fourier Transform

open access: yesAdvanced Physics Research, EarlyView.
We present Recent efforts in an ultrafast RF spectrum analyzer based on the short‐time Fourier transform (STFT) at over 10 MHz frame rate and over 40GHz bandwidth to improve performance and support applications. All these efforts could inspire more innovative applications of temporal imaging modalities in the future.
Liao Chen   +4 more
wiley   +1 more source

Cable Reinforcement Combined With Biologic Tuberoplasty Restores Muscle Forces and Scapular Strain in an Irreparable Rotator Cuff Tear Model: A Cadaveric Study

open access: yesArthroscopy, EarlyView.
Purpose To investigate the biomechanical impact of an irreparable rotator cuff tear and compare the isolated and combined effects of rotator cable reconstruction (CR) and biologic tuberoplasty (BioTB). Methods Eight cadaveric shoulders were tested using an ex vivo dynamic shoulder simulator in forward flexion (FF) and scapular plane abduction (SPA ...
Mohammad Haddara   +10 more
wiley   +1 more source

Low‐Field MRI as a Multiparametric Tool for Large Engineered Tissue Characterization

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Advances in 3D bioprinting have enabled the fabrication of large and complex engineered tissues, but their increasing size demands non‐invasive tools for monitoring structure, maturation, and perfusion. Magnetic Resonance Imaging (MRI) offers unique multiparametric capabilities, yet high‐field systems remain costly and inaccessible for most ...
Yilbert Gimenez   +8 more
wiley   +1 more source

Intelligent Manufacturing, Industrial Agglomeration, and Green and Low‐Carbon Development: A Nonlinear Path Test Based on the Theory of Ecological Modernization

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Drawing upon ecological modernization theory as the analytical framework, this study employs macro‐level longitudinal tracking data covering China's major regions as research samples. It measures the green and low‐carbon development (GLCD) of manufacturing from the four dimensions—“carbon reduction, pollution mitigation, ecological expansion ...
Deng Wang   +4 more
wiley   +1 more source

A Novel MSPLL-Based Method for Frequency Synthesis in Hydrogen MASER. [PDF]

open access: yesSensors (Basel)
Simariya D   +7 more
europepmc   +1 more source

Chain‐Level Business Model Patterns for the Green Logistics Transition

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Sustainability transitions in freight transport increasingly depend on coordinated changes across entire logistics networks, not just within individual firms. This study investigates how business‐model change unfolds across a multimodal European logistics chain engaged in reducing transport‐related emissions.
Marikka Heikkilä
wiley   +1 more source

Fractional N-Phase Locked Loop using

open access: yes, 2014
: Literature survey of Phase Locked Loop reflects that many researchers have applied different techniques like digital and analog simulation by applying mathematical/logical relations to design the Phase Locked Loop (PLL).
Asso. Prof. Atul S. Joshi   +1 more
core  

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