Results 71 to 80 of about 236,260 (333)

On the convective nature of roll waves instability [PDF]

Journal of Applied Mathematics, 2005
A theoretical analysis of the Saint‐Venant one‐dimensional flow model is performed in order to define the nature of its instability. Following the Brigg criterion, the investigation is carried out by examining the branch points singularities of dispersion relation in the complex ω and k planes, where ω and k are the complex pulsation and wave number
C. DI CRISTO, VACCA A
openaire   +6 more sources

A Scalable, Durable, Fire‐Safe All‐Day Passive Radiative Cooling Coating for Sustainable Buildings

Advanced Functional Materials, EarlyView.
This study reports a scalable, durable coating that combines a fire‑retardant copolymer adhesive, hollow glass microspheres, and boron oxide to achieve passive radiative cooling with over 94% solar reflectance and >95% mid‑infrared emissivity. The coating maintains performance after UV and rain exposure and exhibits UL‑94 V‑0 fire resistance, enabling ...
Zhewen Ma, Yuanhao Feng, Alex Y. Song, Toan Dinh, Min Hong, John Bell, Boyou Hou, Pingan Song, Wei Zheng   +8 more
wiley   +1 more source

The effects of transient heat flux on the tube in contact with the natural convection, on enthalpy and entropy generation, for developed laminar flow of fluid with high Prandtl number [PDF]

Chemical Review and Letters, 2019
Heat flux is passed through the tube wall with natural convection in a tube wall of developed laminar flow. Tubes are used to find the best case with the minimum enthalpy and entropy generation.
Reza Kakulvand
doaj   +1 more source

Maya Blue‐Inspired Hybrid Coating for Robust and Superhydrophilic Solar Evaporators Using Commercial Black Acrylic Paint

Advanced Functional Materials, EarlyView.
This study demonstrates a Maya blue‐inspired hybrid solar evaporator using commercial black acrylic paint, achieving 98% solar‐thermal conversion efficiency and 2.39 kg m−2 h−1 water evaporation rate through a durable, hydrophilic organic–inorganic structure that enables scalable, cost‐effective desalination and wastewater purification.
Dao Thi Dung, Do Van Lam, Young Kim, Wonzee Jung, Kanghoon Yim, Seung‐Mo Lee   +5 more
wiley   +1 more source

Reinforced Concrete‐Inspired Multiscale Hierarchical Metamaterial Composite for Synergistic Enhancement Across Thermal, Electromagnetic, and Mechanical Domains

Advanced Functional Materials, EarlyView.
A structurally integrated multiscale hierarchical metamaterial composite (MHMC), inspired by the synergistic architecture of reinforced concrete, achieves simultaneous enhancement of thermal, electromagnetic, and mechanical functionalities. By combining a carbon black‐based mechanical metamaterial with a porosity‐graded cellulose acetate aerogel, this ...
Jeongwoo Lee, Junyeol Choi, Junyong Seo, Jaemin Lee, Dowon Noh, Hoyoung Jang, Hwanju Lim, Jinwoo Park, Run Hu, Wonjoon Choi   +9 more
wiley   +1 more source

Numerical Analysis of Turbulent Mixed Convection in Vertical Annular Channel

Yuanzineng kexue jishu, 2023
Reactor cavity cooling system (RCCS) is a competitive residual heat removal scheme for small modular reactors. In this paper, the RCCS has been simplified to a scenario that ascending air flow is got heated in vertical annular channels and driven by ...
HU Xiangjie;WEN Jiming;GAO Puzhen;TIAN Ruifeng
doaj  

Entropy Solution Theory for Fractional Degenerate Convection-Diffusion Equations [PDF]

, 2010
We study a class of degenerate convection diffusion equations with a fractional nonlinear diffusion term. These equations are natural generalizations of anomalous diffusion equations, fractional conservations laws, local convection diffusion equations ...
Alibaud, Alibaud, Alibaud, Applebaum, Biler, Bustos, Caffarelli, Carrillo, Clavin, Cockburn, Cont, Crandall, Dafermos, de Pablo, Dedner, Droniou, Droniou, Droniou, Espedal, Espen R. Jakobsen, Evans, Evje, Eymard, Fleming, Holden, Jakobsen, Jakubowski, Jue, Karlsen, Kiselev, Kružkov, Lions, Oleĭnik, Rohde, Serre, Simone Cifani, Vazquez, Whitham, Woyczyński   +38 more
core   +2 more sources

An Innovative “Tooth‐On‐Chip” Microfluidic Device Emulating the Structure and Physiology of the Dental Pulp Tissue

Advanced Healthcare Materials, EarlyView.
This work presents a “tooth‐on‐chip” device that mimics dental pulp tissue. By co‐culturing key cell types, it recreates vascular networks, stem cell niches, the odontoblast/dentine interface, and trigeminal innervation. This innovative platform provides a unique model of dental pulp structure and physiology, with significant potential for accelerating
Alessandro Cordiale, Deborah Stanco, Roberta Visone, Bernd Stadlinger, Pierfrancesco Pagella, Marco Rasponi, Thimios A. Mitsiadis   +6 more
wiley   +1 more source

Discussion: “Integral Methods in Natural-Convection Flow” (Levy, Salomon, 1955, ASME J. Appl. Mech., 22, pp. 515–522) [PDF]

, 1956
Carl Wagner
openalex   +2 more sources

Visible Light Induced DLP‐Printed Oxygen‐Releasing TPMS Scaffolds Mitigate Early Hypoxia in Bone Defects

Advanced Healthcare Materials, EarlyView.
Visible light‐induced digital light processing 3D printed Primitive‐triply periodic minimal surface hydrogels embed CaO2–Si core–shell nanoparticles to deliver short‐term oxygen during the avascular window. The scaffolds maintain cytocompatibility, elevate osteopontin in vitro, and enhance calvarial defect repair in vivo without toxicity.
Anastasia B. Timoshenko, Ali Ghasemkhani, Chanul Kim, Domenic J. Cordova, Maria Astudillo Potes, Valeria Aceves, Indranath Mitra, Justin E. Bird, Ryan S. Gray, Stephanie K. Seidlits, Benjamin D. Elder, Maryam Tilton   +11 more
wiley   +1 more source