Results 101 to 110 of about 8,524 (234)

Effect of nano-fibers on the stress-strain behavior of semi-crystalline poly(ethylene terephthalate) at different strain rates [PDF]

open access: yes, 2008
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.Includes bibliographical references (leaf 23).Uniaxial compression tests were performed on amorphous poly(ethylene terephthalate) (PET), amorphous poly(ethylene ...
Cohen, Ellann
core  

4D Printing of Magnetically Responsive Shape Memory Polymers: Toward Sustainable Solutions in Soft Robotics, Wearables, and Biomedical Devices

open access: yesAdvanced Science, Volume 13, Issue 15, 13 March 2026.
Merging 4D printing with magneto‐responsive shape memory polymers opens new avenues for intelligent, reconfigurable systems. This review navigates cutting‐edge fabrication techniques, magnetic fillers, and smart polymer matrices, unveiling their potential in soft robotics, biomedical devices, and wearable tech.
Kiandokht Mirasadi   +7 more
wiley   +1 more source

A Female‐Locust‐Inspired Hybrid Soft‐Stiff Robotic Digger: Mimetics and Implications for Digging Efficiency

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Female desert locusts dig underground to lay their eggs. They displace soil, rather than removing it, to create a tunnel. We analyze burrowing dynamics and 3D kinematics and design a locust‐inspired hybrid soft–stiff robot that reproduces this mechanism. The results show the natural strategy minimizes energy, whereas alternative patterns raise costs up
Shai Sonnenreich   +2 more
wiley   +1 more source

Construcción de un banco de pruebas para ensayos de fotoelasticidad [PDF]

open access: yes, 2016
La fotoelasticidad es una técnica experimental, con la cual podemos analizar esfuerzos y observar la distribución de tensiones en una pieza o un elemento que tengamos sometido a algún tipo de carga, en donde los métodos analíticos serian engorrosos a la ...
Palacio Restrepo, David   +1 more
core  

Current‐Limiting Control Strategies in Variable Capacitance Electrostatic Energy Harvesters

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This work introduces control strategies for electrostatic energy harvesters that balance energy yield with current limitations. Two approaches are explored: traditional peak‐triggered controls, and newly developed quadrature controls, which use smooth voltage profiles.
Alireza Jalaliankhakshour   +4 more
wiley   +1 more source

Study on Influencing of Processing Parameters on Tensile Strength of 3D Printing Sample

open access: yesJournal of Mechanical Engineering
This study investigates the effect of 3D printing parameters on the tensile strength of the printed parts based on ASTM D638-14 standard. The samples were fabricated using Fused Deposition Modeling (FDM) technology using polyethylene terephthalate glycol
Dung Hoang Tien   +2 more
doaj   +1 more source

Carya luodianensis (Juglandaceae), a New Species From Guizhou Province, Southern China, Revealed by Morphological and Plastid Evidence

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
Carya luodianensis (Juglandaceae), a new species, is described and illustrated. We combined morphological characteristics, comparative plastome analyses, and phylogenetic analysis, all of which support the recognition of C. luodianensis as a new species and highlight its evolutionary divergence within Carya. ABSTRACT Carya luodianensis Y.B. Yang & M.T.
Yan‐Bing Yang   +8 more
wiley   +1 more source

The Aerodynamic Effect of Biomimetic Pigeon Feathered Wing on a 1-DoF Flapping Mechanism

open access: yesBiomimetics
This study focused on designing a single-degree-of-freedom (1-DoF) mechanism emulating the wings of rock pigeons. Three wing models were created: one with REAL feathers from a pigeon, and the other two models with 3D-printed artificial remiges made using
Szu-I Yeh, Chen-Yu Hsu
doaj   +1 more source

Validation of 3-Point Bending Strength of PETG Material Printed via FDM Using FEA

open access: yesE3S Web of Conferences
This paper analyses the flexural strength of the PETG material prepared by Fused Deposition Modeling (FDM) techniques. The present study validates experimental and numerical approaches in this regard. Samples were prepared based on the ASTM D790 standards and tested by 3-point bending to understand their mechanical properties.
S. N. S. Santhosh   +5 more
openaire   +1 more source

The Complete Chloroplast Genome of a Vietnam Endemic Aroid, Homalomena perplexa K.Z.Hein, Vuong, Bao & V.S.Dang, and Updated Comparative Genomics in Araceae

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
The complete chloroplast genome of Homalomena perplexa, an endemic aroid to Vietnam, was completely sequenced and characterized. In addition, comparative genomic analysis revealed junction variations and phylogenetic analysis confirmed the infrafamilial relationships of Araceae.
Nhat Nam Nguyen   +2 more
wiley   +1 more source

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