Results 141 to 150 of about 446,293 (361)

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Zonation und Sukzession. Zwei Begriffe der Pflanzensoziologie und ihre Zusammenhänge.

open access: yes, 1942
ZONATION UND SUKZESSION. ZWEI BEGRIFFE DER PFLANZENSOZIOLOGIE UND IHRE ZUSAMMENHÄNGE. Zonation und Sukzession. Zwei Begriffe der Pflanzensoziologie und ihre Zusammenhänge. (vol. XVI, 1-3) (-
Roll, H.
core  

Zonation patterns and interspecific relationships of fucoids in microtidal environments

open access: yes, 2012
Zonation patterns and interspecific relationships of fucoids in microtidal ...
Susini, Marie-Lucie   +17 more
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

Status and long-term changes of coral reefs around Zanzibar

open access: yesFrontiers in Marine Science
IntroductionCoral reefs as key ecosystems in Zanzibar are exposed to several anthropogenic and natural stressors.MethodsThe benthic composition and coverage of coral reefs were investigated on three data sets involving ten coral reefs monitored from 1992
Ali M. Ussi   +7 more
doaj   +1 more source

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

The Arctic Urals in the system of congruous areas: scientific approaches and economic practice

open access: yesКонтуры глобальных трансформаций: политика, экономика, право, 2014
Normative consolidation boundaries of the Russian Arctic does not satisfy but rather strengthens the scientific and practical interest to the neighboring territories of the zone as a natural space of state and corporate interests’ protection and specific
A. I. Tatarkin   +2 more
doaj  

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Vertical zonation of coral reef fishes in the Sudanese Red Sea

open access: yes, 1981
The vertical zonation of 38 species of fish inhabiting coral reefs in the Sudanese Red Sea is described. A marked degree of vertical zonation of the fishes is shown to exist.
Edwards, Alasdair, Rosewell, Jon
core   +1 more source

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