Results 61 to 70 of about 19,922 (256)

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source

Differences in dynamic modulus of elasticity determined by three vibration methods and their relationship with static modulus of elasticity

Maderas: Ciencia y Tecnología, 2016
Dynamic modulus of elasticity was determined in clearwood samples of eight tropical hardwood species using longitudinal vibrations, flexural vibration and ultrasonic transit-time methods.
Shakti Chauhan, Anil Sethy
doaj  

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

Advanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Experimental investigation of the effect of test speed on rupture performance of synthetic yarns

Acta Polytechnica
This study experimentally investigated the effect of testing speed on the mechanical behaviour of five types of synthetic fibres – aramid, high-modulus polyethylene (HMPE), liquid crystal polymer (LCP), polyamide, and polyester – through yarn break load
Daniel Magalhães da Cruz, Ignacio Melito, Tales Luiz Popiolek Júnior, Marcelo de Ávila Barreto, Fernanda Mazuco Clain, Carlos Eduardo Marcos Guilherme   +5 more
doaj   +1 more source

High‐Performance Bio‐Glue From the Berries of a Parasitic Plant

Advanced Materials, EarlyView.
We report a fully bio‐based adhesive derived primarily from a (poly)saccharide extract obtained from the berries of the hemi‐parasitic plant mistletoe (Viscum album), supplemented with tannic and malic acid without any further chemical functionalization.
Ufuk Gürer, Jana T. Reh, Jonas Röder, Umut Günsel, Chiara Gunnella, Lisa Schöbel, Franz Hagn, Aldo R. Boccaccini, Oliver Lieleg   +8 more
wiley   +1 more source

Physical and mechanical properties of juvenile wood from Neolamarckia cadamba planted in west Malaysia

Maderas: Ciencia y Tecnología, 2017
Juvenile Neolamarckia cadamba or kelempayan tree has been harvested from forest plantation and converted into sawn timber. Some basic properties of timber such as physical and mechanical were determined from different parts of the tree namely lower ...
Siti Zalifah Mahmud, Rokiah Hashim, Abdul Hamid Saleh, Othman Sulaiman, Nur Izzaati Saharudin, Mohamad Lokmal Ngah, Khairul Masseat, Hamdan Husain   +7 more
doaj  

The Development of Fiber–Cement Flat Sheets by Young and Mature Coconut Fibers to Replace Asbestos for Eco-Friendly Products

Applied Sciences
This study investigated young and mature coconut fibers as an asbestos replacement in fiber–cement flat sheets. The ratio of fiber content ranged from 5% to 9.5% in increments of 0.5% by weight of binder. Crushed rock dust (CRD) was also utilized in this
Prachoom Khamput, Tawich Klathae, Chookiat Choosakul, Saofee Dueramae   +3 more
doaj   +1 more source

Investigating the Effect of Particle Slenderness Ratio on Optimizing the Mechanical Properties of Particleboard Using the Response Surface Method

BioResources, 2023
Restricted formaldehyde gas emissions and a scarcity of lignocellulosic raw materials have particleboard companies in Iran concerned about raw materials and adhesive use.
Mohammad Arabi, Akbar Rostampour Haftkhani, Reza Pourbaba   +2 more
doaj  

Prediction of Torsional Strength for Very High Early Strength Geopolymer

Medžiagotyra, 2017
Very early high strength geopolymers are gaining acceptance as alternative repair materials for highways and other infrastructure. In this study, a very rapid geopolymer binder based on Metakaolin (MK) and Parawood ash (PWA), developed by the authors ...
Woraphot PRACHASAREE, Abideng HAWA
doaj   +1 more source

Autonomous Folding of Soft Matter From Living Polymers

Advanced Materials, EarlyView.
Origami structures are endowed with “living” polymer creases that grow, remodel, and stiffen in response to nutrient solutions. This post‐fabrication growth enables autonomous folding, iterative regrowth, and mechanical tuning involving origami assemblies, such as cranes, Miura‐ori tessellations, rigid and non‐rigid square‐twist patterns, establishing ...
Jiahe Huang, Tuo Zhao, Shixi Zang, Deep Malu, Huajian Ji, Glaucio H. Paulino, Yuhang Hu   +6 more
wiley   +1 more source