Results 61 to 70 of about 113,868 (281)

Investigation of Micro-Scale Damage and Weakening Mechanisms in Rocks Induced by Microwave Radiation and Their Associated Strength Reduction Patterns: Employing Meta-Heuristic Optimization Algorithms and Extreme Gradient Boosting Models

Mathematics
Microwave-assisted mechanical rock breaking represents an innovative technology in the realm of mining excavation. The intricate and variable characteristics of geological formations necessitate a comprehensive understanding of the interplay between ...
Zhongyuan Gu, Xin Xiong, Chengye Yang, Miaocong Cao   +3 more
doaj   +1 more source

Microwave irradiation: impacts on physicochemical properties of red wine

CyTA - Journal of Food, 2020
Microwave irradiation is considered as a potential alternative technology for promoting the progress of wine aging. The effects of microwave irradiation on some important physicochemical properties of young Cabernet Sauvignon dry red wine were studied ...
Jiang-Feng Yuan, Ting-Ting Wang, Zhuo-Yao Chen, Da-Hong Wang, Ming-Gui Gong, Pei-Yan Li   +5 more
doaj   +1 more source

Microwave Irradiation of Alkali-activated Metakaolin Slurry

5th International Conference on Technologies & Business Models for Circular Economy: Conference Proceedings, 2023
The building and civil engineering industry generates more than 40% of man-caused carbon emissions, consumes a lot of energy just to produce building materials, generates a large amount of waste through construction and demolition, and consumes a large amount of natural resources.
Barbara Horvat, Branka Mušič, Majda Pavlin, Vilma Ducman   +3 more
openaire   +2 more sources

Covalent Organic Frameworks for Water Sorption: The Importance of Framework Physical Stability

Advanced Functional Materials, EarlyView.
This study explores the water‐vapor stability of 2D covalent organic frameworks (COFs) with varying pore sizes. Results reveal microporous COFs demonstrate superior stability compared to mesoporous ones, despite lower water uptake. Mesoporous keto‐enamine‐linked COFs show enhanced stability due to intralayer hydrogen bonds, confirmed by simulations and
Wei Zhao, He Li, Bui Duc Thuan, Weidong Chen, Qiang Zhu, Mounib Bahri, Boyu Li, Kexin Yu, Chengjun Kang, Ting Chen, Zekun Wang, Nigel D. Browning, Kian Jon Chua, Dan Zhao   +13 more
wiley   +1 more source

Transformation of impurity-defect centers in single crystals CdTe:Cl under the influence of microwaves

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2017
Performed in this work are the researches of the influence of microwave irradiation (2.45 GHz, 24 GHz) on spectra of low-temperature (T = 2 K) photoluminescence (PL) in single crystals CdTe:Cl.
N.D. Vakhnyak, O.P. Lotsko, S.I. Budzulyak, L.A. Demchyna, D.V. Korbutyak, R.V. Konakova, O.B. Okhrimenko, N.I. Berezovska   +7 more
doaj   +1 more source

Magnetoresistance oscillations in multilayer systems - triple quantum wells

, 2009
Magnetoresistance of two-dimensional electron systems with several occupied subbands oscillates owing to periodic modulation of the probability of intersubband transitions by the quantizing magnetic field.
Bakarov, A. K., Gusev, G. M., Mamani, N. C., Portal, J. C., Raichev, O. E., Wiedmann, S.   +5 more
core   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

A Green Synthesis of a Novel Calix[4]Resorcinarene from 7-Hydroxycitronellal Using Microwave Irradiation

Indonesian Journal of Chemistry, 2018
A new versatile macromolecule cyclic C-3,7-dimethyl-7-hydroxycalix[4]resorcinarene (CDHHK4R) has been synthesized from a fragrance agent, 7-hydroxycitronellal, via microwave irradiation.
Ratnaningsih Eko Sardjono, Iqbal Musthapa, Iis Rosliana, Fitri Khoerunnisa, Galuh Yuliani   +4 more
doaj   +1 more source

Joining of thirty three percent by weight random carbon fibre reinforced low density polyethylene using variable frequency microwave [PDF]

, 2003
[Abstract]: This paper extends the range of applications for Variable Frequency Microwave facilities (VFMF) (2 – 18 GHz) to joining thirty three percent by weight carbon fibre reinforced low density polyethylene composite [LDPE/CF (33%)].
Ku, Harry S.
core  

Parametric resonance of a two-dimensional electron gas under bichromatic irradiation

, 2004
In an ultrahigh mobility 2D electron gas, even a weak nonparabolicity of the electron dispersion, by violating Kohn's theorem, can have a drastic effect on dc magnetotransport under ac drive. We study theoretically the manifestation of this effect in the
Joas, C., Raikh, M. E., von Oppen, F.
core   +1 more source