Results 71 to 80 of about 22,081 (243)

Massive MIMO without CSI: When Non-Coherent Communication Meets Many Antennas

open access: yes, 2023
Under high-mobility scenarios, the traditional coherent demodulation schemes (CDS) have limited performance, because reference signals cannot effectively track the channel variations with an affordable overhead.
García-Armada, Ana   +2 more
core   +1 more source

A multicenter analysis of 1364 elective/rescue cerclages in Brazil: Perinatal outcomes, complications, and the role of vaginal progesterone

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To evaluate perinatal outcomes in women undergoing cervical cerclage for prevention of preterm birth in Brazilian maternity hospitals. Methods This retrospective cohort study included 1364 women with singleton pregnancies who underwent elective or rescue cervical cerclage between December 2003 and November 2025.
Isabella C. Bragheto   +19 more
wiley   +1 more source

Integrating Knowledge Management Into ERP Selection: A Fuzzy Multi‐Criteria Decision‐Making Model Based on Gray Theory in the Automotive Industry

open access: yesKnowledge and Process Management, EarlyView.
ABSTRACT Enterprise Resource Planning (ERP) systems are integrated business management tools used by organizations to manage data and processes across various functions. While financial and technical considerations remain central to ERP selection, sustainable success also depends on the system's ability to support Knowledge Management (KM).
Deniz Sadat Sebti Esmail Pour   +1 more
wiley   +1 more source

Designing γ‐TiAl Alloys With Refined Twin‐Lamellar Microstructures via Machine Learning‐Driven Phase‐Field Methods

open access: yesMaterials Genome Engineering Advances, EarlyView.
Dual‐phase γ‐TiAl alloys with refined twin‐lamellar (RTL) structures exhibit optimal strength‐ductility synergy. Here, phase‐field simulations reveal composition‐stress‐dependent refined twin‐lamellar (RTL) microstructure evolution. Machine learning (CatBoost + NSGA‐III) trained on phase‐field images predicts optimal RTL‐stress‐composition design space.
Jianwei Li   +8 more
wiley   +1 more source

Additive color mixing visualization of C33 and C29 firms.

open access: yes
The density of prominent triplets involving C33 firms is represented by tones of red while that of triplets involving C29 firms corresponds to tones of green. (Source: The authors).
Yi Song (105202)   +4 more
core   +1 more source

Demand‐Driven Location of Repair Activities and the Local Distribution of the Circular Economy

open access: yesSustainable Development, EarlyView.
ABSTRACT This paper explores the territorial embeddedness of repair at the local and regional level, which is part of the relatively understudied regional circular economy. This study involves the analysis of the dispersion of repair employment compared to other economic sectors as well as the degree of connection of repair activities to other economic
Francisco López‐Bermúdez   +1 more
wiley   +1 more source

Assessing the long-term asymmetric relationship between energy consumption and CO2 emissions: Evidence from the Visegrad Group countries

open access: yesEconomics and Business Review
This study investigates the impact of renewable (REW) and non-renewable (NREW) energy usage, along with economic growth (GDP), on carbon dioxide (CO2) emissions in the Visegrad countries, which rely heavily on traditional energy sources.
Suproń Błażej
doaj   +1 more source

Operationalizing the Waste Hierarchy Though A Synthetic Performance Indicator: Evidence From Spain

open access: yesSustainable Development, EarlyView.
ABSTRACT Ensuring compliance with the European Union (EU) waste hierarchy is essential for advancing circular economy objectives and meeting legally binding municipal solid waste (MSW) targets. This study develops and applies the Waste Hierarchy Achievement Synthetic Indicator (WHASI), an innovative synthetic index designed to assess territorial ...
Victor Mocholí   +2 more
wiley   +1 more source

An Econometric Analysis of the Impact of Real Wages on Economic Growth in OECD Countries using the ARDL-PMG Model (2002-2022)

open access: yesStudia Ekonomiczne i Regionalne
This study aimed to analyze the impact of real wages, human capital, and public expenditure as a percentage of Gross Domestic Product (GDP) on economic growth in six Organization for Economic Co-operation and Development (OECD) countries over the period (
Kettaf Hamza
doaj   +1 more source

A Polar Topology Network Induces Elastic Stiffening in Ferroelectric Oxide Superlattices

open access: yesSmall, EarlyView.
The periodicity in BiFeO3/SrTiO3 superlattices tunes the system into a dense, elastically constrained polar texture state. This topology‐rich regime reveals a collective mechanical response in which interactions among polar topological defects restrict local deformations, producing a pronounced elastic stiffening.
Mohammad Moein Seyfouri   +10 more
wiley   +1 more source

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