Results 81 to 90 of about 3,733,185 (287)

Ultra‐White Elastomeric Coatings for Daytime Radiative Cooling

Advanced Materials Technologies, EarlyView.
Passive daytime radiative cooling meets elasticity in a new class of ultra‐white silicone coatings. Combining high solar reflectance with strong sky‐window emission, they hold surfaces below ambient temperature under full sunlight while remaining flexible and stretchable. This combination of cooling performance and mechanical flexibility enables energy‐
Abdulrahman Aljwirah, Xiaojie Liu, Khalid Alhammadi, Orlando G. Rivera Gonzalez, Won‐June Lee, Xiulin Ruan   +5 more
wiley   +1 more source

Impact of Low- or High-Permeability Inclusion on Free Convection in a Porous Medium

Geofluids, 2019
Density-driven free convection in porous media is highly affected by large-scale heterogeneity, typical of which are low- or high-permeability inclusions imbedded in homogeneous porous media.
Min Yan, Chunhui Lu, Jie Yang, Yifan Xie, Jian Luo   +4 more
doaj   +1 more source

High Throughput Aerosol Jet Printing to Operationalize High Aspect Ratio Patterning

Advanced Materials Technologies, EarlyView.
High‐throughput aerosol jet printing poses distinct limiting mechanisms to the printing process. These include rapidly changing ink chemistries, atomization instabilities, and liquid‐phase spreading. The combination of in‐line heating, process monitoring, and traditional optimization procedures enables rapid printing of high‐aspect‐ratio structures ...
Bella I. Guyll, Md Mahdi Ul Ishtiaque, Md Ramjan Ali, Todd A. Kingston, Ethan B. Secor   +4 more
wiley   +1 more source

Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process

Al-Khawarizmi Engineering Journal, 2012
In this research, an experimental study was conducted to high light the impact of the exterior shape of a cylindrical body on the forced and free convection heat transfer coefficients when the body is hold in the entrance of an air duct.
Sundus Hussein Abd
doaj   +2 more sources

Influence of Radiation and Convective Types of Heat Exchange on the Necessary Duration of Temperature Measurement by Thermocouples

MATEC Web of Conferences, 2016
Results of research of influence of radiation heat exchange on duration of execution of measurement high темератур are given by thermocouples, influence of the free convection on results of temperature measurement is also considered by the thermocouples ...
Atroshenko Yuliana K., Bychkova Alena A., Ozerova Irina P.   +2 more
doaj   +1 more source

Scaling of Turbulent Mixed Convection under High Pressure [PDF]

, 2007
Measurement of turbulent mixed convection at reduced model size by aerodynamic scaling is a promising approach to simplify the investigation of many technical configurations and offers the potential to make large scale flows accessible on a ...
Thess, Andre, Westhoff, Andreas, Bosbach, Johannes, Grabinski, Nina, Wagner, Claus   +4 more
core  

Liquid Crystal Elastomer Actuator Matrix for Large Area Applications

Advanced Materials Technologies, EarlyView.
A scalable approach is used to manufacture a digitally‐controllable, 2D 5 × 5 actuator matrix. The elements of the matrix are produced by direct ink writing of a liquid crystal elastomer ‘artificial muscle’ on large‐area flexible thin‐film heaters. In optimizing the low‐power actuators, multiple heater designs and substrate materials are investigated ...
Giulia Spallanzani, Bart Peeters, Danqing Liu, Peter Zalar, Hylke B. Akkerman, Jeroen A. H. P. Sol   +5 more
wiley   +1 more source

Analytical Study of Complex Heat Transfer During Steady-State Natural Convection near a Vertical Surface

Axioms
In this study we derived an analytical solution to the problem of radiation heat transfer under free convection near a vertical plate with a slip condition on its surface.
Andriy A. Avramenko, Igor V. Shevchuk, Nataliia P. Dmitrenko, Vladimir G. Demchenko, Andrii I. Tyrinov, Kyryl O. Fedortsev, Andrii S. Kobzar   +6 more
doaj   +1 more source

Spatially Configurable Conformal Sensor Integration on an Ultra‐Fine Metallic Needle for Minimally Invasive Deep‐Tissue Oxygen Monitoring

Advanced Materials Technologies, EarlyView.
A multi‐point oxygen‐sensing ultra‐fine needle (MO‐UFN) is developed by conformally integrating a lithographically patterned flexible electrochemical sensor array onto a clinical acupuncture needle. The platform preserves an approximately 0.3 mm diameter while enabling spatially resolved oxygen profiling along the insertion pathway.
Yeju Seo, Jaeho Park, Yongrok Jeong, Ji‐Hwan Ha, Junseong Ahn, Jimin Gu, Su A Park, Ilwoo Jun, Kichul Lee, Inkyu Park   +9 more
wiley   +1 more source

Free Convection in a Square Ternary Hybrid Nanoliquid Chamber with Linearly Heating Adjacent Walls. [PDF]

Nanomaterials (Basel), 2023
Rajesh V, Sheremet M.
europepmc   +1 more source