Results 111 to 120 of about 184,071 (369)

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

open access: yesAdvanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung   +11 more
wiley   +1 more source

A NLO analysis on fragility of dihadron tomography in high energy $AA$ collisions

open access: yes, 2008
The dihadron spectra in high energy $AA$ collisions are studied within the NLO pQCD parton model with jet quenching taken into account. The high $p_T$ dihadron spectra are found to be contributed not only by jet pairs close and tangential to the surface ...
Enke Wang   +5 more
core   +1 more source

A Vascular Microphysiological Model of Lung Fibrosis Reveals That Myofibroblasts and IPF Patient‐Derived Fibroblasts Impair Angiogenesis and Vasculogenesis

open access: yesAdvanced Functional Materials, EarlyView.
A microphysiological lung fibrosis model recapitulates myofibroblast–vascular interactions. Induced myofibroblasts and patient‐derived IPF fibroblasts impair angiogenesis and increase vascular permeability via TGF‐β1–driven signaling. Pharmacological interventions with SB 431542 and VEGF supplementation restore vascular morphology and barrier function.
Elena Cambria   +7 more
wiley   +1 more source

Slab thickness-shear reinforcement interaction on shear strength of interior slab-column connections

open access: yesJournal of Engineering and Applied Science
The effects of slab thickness and punching shear reinforcement ratio on the individual contributions of concrete and reinforcement on punching shear strength of interior slab-column connections are theoretically investigated.
Osman M. Ramadan   +2 more
doaj   +1 more source

Investigation of feeding devices and development of design considerations for a new feeder for micro-sheet forming [PDF]

open access: yes, 2008
Recent review in micro-forming research and technological development suggested that the trend of the development is more focused on the manufacturing processes, machines and tooling, and efforts on the methods and systems for integrated precision ...
Brockett, Andrew   +3 more
core  

Punching above their weight: a network to understand broader determinants of increasing life expectancy

open access: yesInternational Journal for Equity in Health, 2018
BackgroundLife expectancy initially improves rapidly with economic development but then tails off. Yet, at any level of economic development, some countries do better, and some worse, than expected – they either punch above or below their weight.
F. Baum   +21 more
semanticscholar   +1 more source

Tunable and Recyclable Piezoelectric Biomaterials via Ion‐Directed Guanine‐Quadruplex Assembly

open access: yesAdvanced Functional Materials, EarlyView.
Guanine‐quadruplex (GQ) assemblies, formed via ion‐mediated self‐assembly of amphiphilic guanine derivatives, are introduced as tunable and recyclable piezoelectric biomaterials. Distinct alkali ions induce unique dipole configurations and piezoelectric outputs, with K⁺ yielding the highest performance.
Seungho Lee   +9 more
wiley   +1 more source

Study and Optimization of the Punching Process of Steel Using the Johnson–Cook Damage Model

open access: yesMetals
Sheet metal forming processes are widely used in applications such as those in the automotive or aerospace industries. Among them, punching is of great interest due to its high productivity and low operating cost.
Adrián Claver   +7 more
doaj   +1 more source

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