Results 51 to 60 of about 121,711 (277)

Ti3SiC2-Cf composites by spark plasma sintering: Processing, microstructure and thermo-mechanical properties [PDF]

, 2019
MAX phases, and particularly Ti3SiC2, are interesting for high temperature applications. The addition of carbon fibers can be used to reduce the density and to modify the properties of the matrix. This work presents the densification and characterization
Agote, I., Azurmendi, N., Barcena, J., Lagos, M.A., Parco, M., Pellegrini, C., Sciti, D., Silvestroni, L., Zoli, L.   +8 more
core   +2 more sources

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Who drives urban densification? Linking landownership and spatial dynamics

Raumforschung und Raumordnung
Cities worldwide have developed policies to promote and control urban densification. However, a high proportion of densification takes place without the purview of strategic planning.
Denise Ehrhardt, Felicitas Sommer, Mouhamadou Ndim , Juste Raimbault, Thomas Hartmann, Mathias Jehling   +5 more
doaj   +1 more source

Densification of porous refractory substrates [PDF]

, 1982
A hydrolyzed tetraethyl orthosilicate is applied to the surface of a porous refractory substrate following which the substrate is heated to a temperature and for a period of time sufficient to bond the silica released from the tetraethyl orthosilicate to
Ecord, G. M., Schomburg, C.
core   +1 more source

Transformation Pathways of Silica under High Pressure

, 2006
Concurrent molecular dynamics simulations and ab initio calculations show that densification of silica under pressure follows a ubiquitous two-stage mechanism.
AJ Gratz, BB Karki, D Andrault, DC Palmer, DD Klug, DM Teter, ECT Chao, EM Stolper, HT Stokes, J Badro, John Kieffer, JP Perdew, KJ Kingma, KJ Kingma, KJ Kingma, Liping Huang, LP Huang, LS Dubrovinsky, LW Hobbs, M O’Keeffe, M O’Keeffe, M Yamakata, Murat Durandurdu, N Binggeli, N Troullier, P Ordejón, R Hundt, RJ Hemley, RJ Hemley, RM Hazen, RM McMeeking, RM Wentzcovitch, S Tsuneyuki, T Demuth, VB Prokopenko, Y Tsuchida, Y Tsuchida, Y Yahagi   +37 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

An influence of the SS316L powder particle shape to the densification of metal injection moulding (MIM) compact [PDF]

, 2008
Metal injection molding (MIM) has acquired increasing importance as a production technique for small, complex stainless steel components [1, 2]. Sintering is critical for determining the final quality of the parts produced by MIM. Because high sintered
Ab. Rahman, Mohd. Nizam, Ahmad, Sufizar, Ibrahim, Mohd. Halim Irwan, Jamaluddin, Khairur Rijal, M. Amin, Sri Yulis, Mohamad Nor, Nor Hafiez, Muhamad, Norhamidi, Murtadhahadi, Murtadhahadi   +7 more
core  

New Models for UO2 Fuel Structure Evolution under Irradiation in Fast Reactors

, 2011
On the base of analysis of experimental observations and critical assessment of existing models for oxide fuel structure evolution under operation conditions of fast reactors, new models for fuel restructuring and coring are proposed.
Bourgeois, Brook, Burke, Chubb, Clement, de Halas, Freund, M.S. Veshchunov, Maeda, McEwan, Nichols, Nichols, Ozawa, Ronchi, Sens, Shewmon, Speight, Turnbull, Veshchunov, Veshchunov, Veshchunov, Veshchunov, Yajima, Yanagisawa   +23 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Strong enhancement of Jc in binary and alloyed in-situ MgB2 wires by a new approach: Cold high pressure densification

, 2009
Cold high pressure densification (CHPD) is presented as a new way to substantially enhance the critical current density of in situ MgB2 wires at 4.2 and 20 K at fields between 5 and 14 T.
C Senatore, Collings E W, Eisterer M, Flükiger R Hossain M S A Senatore C, Flükiger R Senatore C Hossain M S A Zhang X Wang D Ma Y W, Hossain M S A, Hossain M S A, Lezza P, M S A Hossain, Ma Y W, Pan A V, Prikhna T A, R Flukiger, Rowell J M, Yamada H, Yamamoto A, Zhang X P   +16 more
core   +2 more sources