Results 91 to 100 of about 7,904 (278)

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

EFFECTS OF OLMESARTAN ON LOCAL AND REGIONAL RIGIDITY OF ARTERIES IN ISCHEMIC HEART DISEASE

open access: yesКардиоваскулярная терапия и профилактика, 2014
Aim. To evaluate 24-week treatment by olmesartan on rigidity of arteries in different vessel areas in patients with coronary heart disease (CHD) with 1–2 grade arterial hypertension (AH).Material and methods.
I. B. Matrosova   +2 more
doaj   +1 more source

[Preprint] I will vote what is in my heart: Sierra Leone’s 2012 elections and the pliability of “normative” democracy

open access: yes, 1900
The 2012 national election laws in Sierra Leone addressed the campaign violence and discord experienced in previous elections with heavy restrictions on everyday freedoms such as movement, expression, and assembly.
Catherine Bolten (17332195)
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

ASSOCIATION OF FLEXIBILITY WITH SOCIODEMOGRAPHIC FACTORS, PHYSICAL ACTIVITY, MUSCLE STRENGTH, AND AEROBIC FITNESS IN ADOLESCENTS FROM SOUTHERN BRAZIL

open access: yesRevista Paulista de Pediatria, 2019
Objective: To identify sociodemographic, physical activity, and physical fitness factors associated with flexibility. Methods: Cross-sectional study with 909 adolescents (486 girls) aged 14 to 19 years from the city of São José, Santa Catarina, Brazil.
Tiago Rodrigues de Lima   +3 more
doaj   +1 more source

PROLONGATION OF SERVICE LIFE OF DIESEL LOCOMOTIVE MAIN BEARINGS BASED ON RATIONAL SELECTION OF CRANKSHAFT SUPPORT PLIABILITY

open access: yes, 1992
Subject of investigation: "crankshaft - main bearing" assembly of diesel locomotives ChN26/26. Purpose of the work: reduction of intensity and increase of uniformity of wear of diesel locomotive main bearings as a result of modification of the ...
Sirotenko, Igor Vasilievich
core  

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

Variations in self-regulation of behaviour among different groups of the Russian population during the second wave of the COVID-19 pandemic

open access: yesEuropean Psychiatry
Introduction During a pandemic, the population is required to adapt effectively to drastically altered environmental conditions to avoid the development of psychiatric disorders or other maladaptive responses.
V. I. Rozhdestvenskiy   +4 more
doaj   +1 more source

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