Results 81 to 90 of about 121,589 (304)

Impact of super absorbent polymers on early age behavior of ultra-high performance concrete walls [PDF]

open access: yes, 2019
Early age cracking, a common problem for Ultra-High Performance Concrete (UHPC), is caused by Autogenous Shrinkage (AS) and self-desiccation arising from the chemical shrinkage during the cement hydration reactions when the deformation is restrained ...
De Belie, Nele   +7 more
core  

β‐Adrenergic Signaling Promotes Anti‐Tumor Immunity in TP53‐mutant Oral Squamous Cell Carcinoma

open access: yesAdvanced Science, EarlyView.
β‐adrenergic stimulation enhances anti‐tumor immunity in TP53‐deficient oral squamous cell carcinoma by inducing tumor‐derived secretion of CXCL10, which attracts and activates cytotoxic CD8+ T cells. The findings demonstrate that β‐adrenergic signaling alters tumor–immune interactions via CXCL10‐mediated paracrine activation, revealing a neuro‐immune ...
Frederico O. Gleber‐Netto   +20 more
wiley   +1 more source

Practical limitations of single-span ultra-high performance concrete beams [PDF]

open access: yes, 2013
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (p.
Abrams, Daniel Scott
core  

Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications

open access: yesAdvanced Science, EarlyView.
This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang   +6 more
wiley   +1 more source

Humanized and Charge‐Optimized CSPG4‐Specific CAR‐T Cells show Enhanced Efficacy against Head and Neck Squamous Cell Carcinoma

open access: yesAdvanced Science, EarlyView.
CSPG4 is identified as a high‐value, stemness‐associated target in HPV‐negative HNSCC. By implementing rational biophysical engineering, a humanized and charge‐optimized CAR is developed to overcome tonic signaling‐induced exhaustion. This strategy induces a profound transcriptomic shift toward a rejuvenated, stem‐like memory state, significantly ...
Xiang Xu   +13 more
wiley   +1 more source

Eccentric Compression Behavior of Reinforced Ultra-High Performance Geopolymer Concrete and Ultra-High Performance Concrete Columns: A Comparative Study

open access: yesBuildings
Ultra-high performance geopolymer concrete (UHPGC) has emerged as a low-carbon cementitious material with high mechanical performance and thus offers potential as a substitute for Portland cement-based ultra-high-performance concrete (UHPC). Experimental
Jie Su   +3 more
doaj   +1 more source

Research on Fracture Toughness of C120 Ultra-High-Performance Concrete in Kingkey Financial Center Project

open access: yesAdvances in Materials Science and Engineering, 2012
By adding polypropylene fiber, fracture toughness of C120 ultra-high-performance concrete in Kingkey Financial Center project has been enhanced. The tests conducted by the Building Material Lab of the Civil and Water Conservancy Institute of Tsinghua ...
Hao-Wen Ye   +6 more
doaj   +1 more source

EFFECTIVE FRACTURE ENERGY OF ULTRAHIGHPERFORMANCE FIBREREINFORCED CONCRETE UNDER INCREASED STRAIN RATES [PDF]

open access: yes, 2017
The main objective of this paper is to contribute to the development of ultra-high performance fibre reinforced concrete (UHPFRC) with respect to its effective fracture energy.
Máca , Petr   +2 more
core   +1 more source

Properties of Ultra High Performance Concrete [PDF]

open access: yes, 2010
The aim of this study is to investigate the effects of changing silica fume content, amount of crushed quartz powder as ultra fine aggregate and the sequence of mixing procedure on the main properties of Ultra High Performance Concrete (UHPC), with particular emphasis on 28 days compressive strength, density and slump.
Shihada, Samir, Arafa, Mohammed
openaire  

ML Workflows for Screening Degradation‐Relevant Properties of Forever Chemicals

open access: yesAdvanced Science, EarlyView.
The environmental persistence of per‐ and polyfluoroalkyl substances (PFAS) necessitates efficient remediation strategies. This study presents physics‐informed machine learning workflows that accurately predict critical degradation properties, including bond dissociation energies and polarizability.
Pranoy Ray   +3 more
wiley   +1 more source

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