Results 61 to 70 of about 2,146,103 (291)

Rheo-Squeeze Casting of High-Silicon Aluminium Alloy Pipes with Gradient Structures and Their Mechanical Properties [PDF]

open access: yesMaterials Research, 2018
Three different compositions of high-Si Al alloy pipe, with a gradient structure, were produced through semi-solid rheological squeeze casting, the microstructural characteristics of which were investigated.
Lu Li   +4 more
doaj   +1 more source

A macroscopic crowd motion model of gradient flow type [PDF]

open access: yes, 2010
A simple model to handle the flow of people in emergency evacuation situations is considered: at every point x, the velocity U(x) that individuals at x would like to realize is given.
Aude Roudneff-chupin   +4 more
core   +2 more sources

Exploiting the structure via sketched gradient algorithms [PDF]

open access: yes2017 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2017
Sketched gradient algorithms have been recently introduced for efficiently solving the large-scale constrained Least-squares regressions. In this paper we provide novel convergence analysis for the basic method {\it Gradient Projection Classical Sketch} (GPCS) to reveal the fast linear convergence rate of GPCS towards a vicinity of the solution thanks ...
Tang, Junqi   +2 more
openaire   +3 more sources

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

open access: yesFEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson   +7 more
wiley   +1 more source

Influence of film forming substrate on self-organized gradient structure of fluoroacrylate/polyurethane composite emulsion

open access: yesCailiao gongcheng, 2019
Fluoroacrylate/polyurethane composite emulsion (FPAPU) were synthesized by miniemulsion polymerization. The effect of four kinds of materials with different surface properties (aluminum plate, stainless steel plate, PTFE plate and glass plate) on the ...
XIN Hua   +4 more
doaj  

Low friction and wear characteristics formed by mechanically induced surface nanocrystallization: A review of recent advances

open access: yesFriction
Friction and wear of metallic materials are ubiquitous in modern life, resulting in significant energy consumption and property damage. The tribological performance of metallic materials is strongly affected by their surface characteristics, motivating ...
Youwang Tu   +3 more
doaj   +1 more source

Nanocellular Polymers with a Gradient Cellular Structure Based on Poly(methyl methacrylate)/Thermoplastic Polyurethane Blends Produced by Gas Dissolution Foaming [PDF]

open access: yes, 2019
Graded structures and nanocellular polymers are two examples of advanced cellular morphologies. In this work, a methodology to obtain low-density graded nanocellular polymers based on poly(methyl methacrylate) (PMMA)/ thermoplastic polyurethane (TPU ...
Bernardo García, Victoria   +4 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

Significantly extending the gradient layer and mechanical properties of Mg alloys by texture optimization

open access: yesMaterials Research Letters
Considerable efforts have been made to prepare a thicker gradient layer, while the reported thickness of the gradient layer for Mg alloys is often below 700 µm.
Bo Guan   +7 more
doaj   +1 more source

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