Results 81 to 90 of about 162,432 (304)

Onset of Propagation of Planar Cracks in Heterogeneous Media

, 1997
The dynamics of planar crack fronts in hetergeneous media near the critical load for onset of crack motion are investigated both analytically and by numerical simulations.
A. A. Middleton, A. A. Middleton, A. B. Harris, B. Lawn, D. Ertaş, D. Ertaş, Daniel S. Fisher, G. Perrin, H. Gao, H. Larralde, J. R. Willis, J. Schmittbuhl, J. Schmittbuhl, J. T. Chayes, L. B. Freund, M. Ji, M. Marder, O. Narayan, O. Narayan, O. Narayan, P. Bak, P. G. de Gennes, Sharad Ramanathan, Sharad Ramanathan, Sharad Ramanthan, T. Natterman   +25 more
core   +1 more source

Failure assessment of lightly reinforced floor slabs. I: Experimental investigation [PDF]

, 2011
This paper is concerned with the ultimate behavior of lightly reinforced concrete floor slabs under extreme loading conditions. Particular emphasis is given to examining the failure conditions of idealized composite slabs which become lightly reinforced ...
Cashell, KA, Elghazouli, AY, Izzuddin, BA   +2 more
core   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Delayed fracture of silicon: Silicon sheet growth development for the large area silicon sheet task of the low cost silicon solar array project [PDF]

Bar specimens were cut from ingots of single crystal silicon, and acid etched prior to testing. Artificial surface flaws were introduced in specimens by indentation with a Knoop hardness tester.
Chen, T. J., Knapp, W. J.
core   +1 more source

Stable and Unstable Crack Growth in Viscoelastic Media [PDF]

, 1969
The failure of load-bearing structures by fracture is generally important in all phases of our society. It may concern small household items as well as expensive structures of civil or space applications and accordingly may cause varying degrees of ...
Knauss, W. G.
core   +1 more source

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

Advanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez, Mulazim Hussain Asim, Shumaila Arshad, Gergely Kali, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes

Advanced Functional Materials, EarlyView.
The chemomechanical coupling in an adaptive hydrogel is studied to further the development of adaptive hydrogels. This coupling is achieved by embedding a pH‐modulating enzyme in a pH‐responsive hydrogel. The enzymatic reaction can be triggered locally, which generates a pH‐decreasing wave throughout the system, increasing the crosslinking density and ...
Natascha Gray, Zoe Grämiger, André R. Studart, Rafael Libanori   +3 more
wiley   +1 more source

Delay in diagnosis of thoracolumbar fractures

Orthopedic Reviews, 2019
The time interval between the date of trauma and the diagnosis of vertebral column fractures hinders management and increases liability. We have examined the features and implications of this delay. 585 consecutive thoracolumbar fractures (2005-2016), were considered; 382 (65.30%) were males and 203 (34.70%) females. Mean age was 51 yr.
José Aso-Escario, Cristina Sebastián, Alberto Aso-Vizán, José Vicente Martínez-Quiñones, Fabián Consolini, Ricardo Arregui   +5 more
openaire   +3 more sources

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source

MiR-328-5p/BCL7A axis is involved in fracture healing by modulating osteoblast function

Journal of Orthopaedic Surgery and Research
Background Delayed fracture healing severely impacts patients’ quality of life and imposes economic burdens. Objective This study aimed to investigate the role of miR-328-5p in fracture healing and its underlying molecular mechanisms, providing novel ...
Zhen Han, Chengjian Wei
doaj   +1 more source