Results 61 to 70 of about 843,816 (337)

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan   +4 more
wiley   +1 more source

Chloroplast genome and haplotype relationships unravel the genetic introgression and complex evolutionary history of East Asian Rosa section Synstylae roses (Rosaceae)

open access: yesBotanical Studies
Background The section Synstylae of the genus Rosa (Rosaceae) is predominantly distributed across the Eastern Asiatic Floristic Region and is characterized by increased species diversity and natural hybrids.
Ji-Hyeon Jeon   +3 more
doaj   +1 more source

Ecological testing of winter wheat varieties bred at the Institute of Irrigated Farming of the Ukrainian National Academy of Agrarian Sciences in Turkey

open access: yesPlant Varieties Studying and Protection, 2015
Purpose. Study of winter wheat varieties that were bred at the Institute of Irrigated Farming NAAS through ecological testing in Turkey. Test procedures both in Ukraine and Turkey meet the requirements of the International Union for the Protection of New
Л. О. Усик   +2 more
doaj   +1 more source

Improving the adaptability of simulated evolutionary swarm robots in dynamically changing environments [PDF]

open access: yes, 2014
One of the important challenges in the field of evolutionary robotics is the development of systems that can adapt to a changing environment. However, the ability to adapt to unknown and fluctuating environments is not straightforward.
Marchal, Kathleen   +2 more
core   +4 more sources

Micropleated Nanofibrous Filters for High‐Efficiency Submicron Aerosol Filtration: A Comparative Study with Chemical, Biological, Radiological, and Nuclear Gas Mask Filters

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents micropleated filters manufactured by needleless electrospinning. Nanofibers are deposited onto uniaxially pre‐stretched substrates that contract upon release, forming densely packed micropleats. This architecture increases effective surface area without enlarging the filter size, achieving quality factors comparable to those of ...
Aleksandr Fadeev   +6 more
wiley   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Architectural approaches to the design of teenager rehabilitation and reintegration centers

open access: yesАрхитектон
This article discusses the problem of designing centers for the restoration of mental and physical health of adolescents. Currently there is a need for specialized centers that would help teenagers to socialize in society and acquire the necessary skills
Akhmadishina Elina R.   +1 more
doaj   +1 more source

Influência de fatores bioclimáticos nos índices produtivos e fisiológicos de caprinos nativos confinados Thermal comfort parameters of native goats raised in confinement in the semiarid of Paraíba State

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2012
Objetivou-se neste trabalho determinar os fatores bioclimáticos e seus efeitos sobre os índices fisiológicos e produtivos de caprinos nativos confinados na região do Cariri paraibano. Utilizaram-se 36 animais, machos não-castrados, 12 por grupo genético,
Jackson R. de S. Leite   +4 more
doaj   +1 more source

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel   +3 more
wiley   +1 more source

Climate anxiety as a call to global justice

open access: yesFrontiers in Psychology
Climate anxiety (or eco-anxiety) is a growing psychological phenomenon linked to the increasing awareness of the environmental crisis caused by climate change.
Batul Hanife   +4 more
doaj   +1 more source

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