Results 71 to 80 of about 201,687 (291)
Generalized Mechanism Model for Ecosystem Hysteresis
Advanced Science, EarlyView.A simplified model examines ecosystem transitions into alternative states after disturbances by leveraging positive and negative feedbacks. It identifies critical tipping points and quantifies hysteresis. Tests conducted on lakes, grasslands, and pitcher‐plant leaves align closely with empirical data and enable the prediction of recovery trajectories ...
Yanbin Hao +9 more
wiley +1 more source
Concrete-Filled Steel Tube Arch Bridges in China
Engineering, 2018 In the past 20 years, great progress has been achieved in China in the construction of concrete-filled steel tube (CFST) arch bridges and concrete arch bridges with a CFST skeleton.
Jielian Zheng, Jianjun Wang
doaj +1 more source
Impact of material deterioration on the strength of reinforced concrete half-joint structures [PDF]
, 2015 During the 1960’s and 1970’s a number of reinforced concrete (RC) bridges were constructed with ‘half-joints’ introduced into bridge decks. A half-joint is a particular type of RC structure that was introduced into bridge decks as a means of simplifying ...
Desnerck, P, Lees, JM, Morley, C
core +1 more source
Advanced Science, EarlyView.Advanced clear cell renal cell carcinoma metastasis is driven by a FOXC2+ tumor subpopulation. These cells execute vasculogenic mimicry for dissemination and secrete LAMA4. LAMA4 engages macrophage ITGA6, activating the STAT6/GATA3 axis to polarize macrophages into a pro‐metastatic, immunosuppressive phenotype.
Jiaxi Yao +11 more
wiley +1 more source
Updating material factors for assessment of historic reinforced concrete bridge [PDF]
, 2016 This paper is focused on the reliability analysis of an existing reinforced concrete bridge from 1908. The load bearing capacity is assessed in accordance with valid standards using updated partial factors and the partial factors for structural design.
Krejsa, Jan, Sýkora, Miroslav
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β‐Adrenergic Signaling Promotes Anti‐Tumor Immunity in TP53‐mutant Oral Squamous Cell Carcinoma
Advanced 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
Effect of time yield in concrete upon deformation stresses in a reinforced concrete arch bridge : a report [PDF]
, 1935 Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana ...
Kluge, Ralph Wendel, 1905- +1 more
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Advanced Science, EarlyView.Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Nan Jiang +8 more
wiley +1 more source
Finite Element Analysis of Concrete Bridge Slabs Reinforced with Fiber Reinforced Polymer Bars
The Journal of Engineering Research, 2014 Due to their non-corrosive nature, high strength and light weight, fiber reinforced polymers (FRP) are being widely used as reinforcement in concrete bridges, especially those in harsh environments.
S.E. El-Gamal
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Development of low cost packaged fibre optic sensors for use in reinforced concrete structures [PDF]
, 2019 There is an ongoing need to measure strains in reinforced concrete structures more reliably and under a range of circumstances e.g. long term durability (such as effects of cracking and reinforcement corrosion), response to normal working loads and ...
Banerji, P. +6 more
core +1 more source