Results 51 to 60 of about 192,787 (292)

Microstructure and strength of metals processed by severe plastic deformation [PDF]

open access: yes, 2006
The microstructure of f.c.c. metals (Al, Cu, Ni) and alloys (Al-Mg) processed by severe plastic deformation (SPD) methods is studied by X-ray diffraction line profile analysis.
Chinh, Nguyen Quang   +3 more
core  

Geometrically necessary dislocation densities in olivine obtained using high-angular resolution electron backscatter diffraction [PDF]

open access: yes, 2016
© 2016 The AuthorsDislocations in geological minerals are fundamental to the creep processes that control large-scale geodynamic phenomena. However, techniques to quantify their densities, distributions, and types over critical subgrain to polycrystal ...
Hansen, L, Wallis, D, Wilkinson, A
core   +1 more source

Evolution of geometrically necessary dislocation density from computational dislocation dynamics

open access: yesIOP Conference Series: Materials Science and Engineering, 2009
This paper presents a method for calculating GND densities in dislocation dynamics simulations. Evolution of suitably defined averages of GND density as well as maps showing the spatial nonuniform distribution of GNDs are analyzed under uniaxial loading.
P J Guruprasad, A A Benzerga
openaire   +1 more source

Establishment of a humanized patient‐derived xenograft mouse model of high‐grade serous ovarian cancer for preclinical evaluation of combination immunotherapy

open access: yesMolecular Oncology, EarlyView.
We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric   +10 more
wiley   +1 more source

Down‐regulation of Shh in the hair follicles of mice during chemotherapy‐induced hair loss is mediated by the JAK/STAT1 signaling pathway

open access: yesFEBS Open Bio, EarlyView.
We found that during chemotherapy‐induced alopecia (CIA), Sonic hedgehog (Shh) expression significantly decreased in hair follicle Shh+ cells, whereas the Janus‐activated kinase/signal transducer and activator of transcription 1 (JAK/STAT1) signaling pathway was markedly activated.
Ruifang Fan   +6 more
wiley   +1 more source

Ductile deformation in alumina ceramics under quasi-static to dynamic contact impact

open access: yesMaterials & Design, 2020
Cr3+ Fluorescence spectroscopy and TEM have been used to study the ductile deformation of alumina ceramics underneath an impact contact. The contact was generated by a spherical tungsten carbide indenter under quasi-static, drop weight and ballistic ...
Robert G. Crookes   +2 more
doaj   +1 more source

Large scale ab-initio simulations of dislocations [PDF]

open access: yes, 2019
We present a novel methodology to compute relaxed dislocations core configurations, and their energies in crystalline metallic materials using large-scale ab-intio simulations. The approach is based on MacroDFT, a coarse-grained density functional theory
Bhattacharya, Kaushik   +2 more
core   +2 more sources

FGFR Like1 drives esophageal cancer progression via EMT, PI3K/Akt, and notch signalling: insights from clinical data and next‐generation sequencing analysis

open access: yesFEBS Open Bio, EarlyView.
Clinical analysis reveals significant dysregulation of FGFRL1 in esophageal cancer (EC) patients. RNAi‐coupled next‐generation sequencing (NGS) and in vitro study reveal FGFRL1‐mediated EC progression via EMT, PI3K/Akt, and Notch pathways. Functional assays confirm its role in tumor growth, migration, and invasion.
Aprajita Srivastava   +3 more
wiley   +1 more source

Influence of dislocation density on internal quantum efficiency of GaN-based semiconductors

open access: yesAIP Advances, 2017
By considering the effects of stress fields coming from lattice distortion as well as charge fields coming from line charges at edge dislocation cores on radiative recombination of exciton, a model of carriers’ radiative and non-radiative recombination ...
Jiadong Yu   +9 more
doaj   +1 more source

Generalized dynamics of moving dislocations in quasicrystals

open access: yes, 2010
A theoretical framework for dislocation dynamics in quasicrystals is provided according to the continuum theory of dislocations. Firstly, we present the fundamental theory for moving dislocations in quasicrystals giving the dislocation density tensors ...
Agiasofitou, Eleni   +2 more
core   +1 more source

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