Results 81 to 90 of about 79,031 (332)

Outstanding CO2 Photoreduction in Single‐Atom Thulium Modified Carbon Nitride

Advanced Science
CO2 reduction photocatalysts are favorable for obtaining renewable energy. Enriched active sites and effective photogenerated‐carriers separation are keys for improving CO2 photo‐reduction. A thulium (Tm) single atom tailoring strategy introducing carbon
Cheng Ding, Liuqing Yang, Xinxin Lu, Haoqiang Chi, Yong Yang, Junyang Yuan, Xiaoyong Wang, Xinglong Wu, Yongcai Zhang, Yong Zhou, Zhigang Zou   +10 more
doaj   +1 more source

Approximate analysis and stability of pressure oscillations in ramjets [PDF]

, 1985
This paper summarizes work accomplished during the past five years on analysis of stability related to recent experimental results on combustion instabilities in dump combustors.
Culick, F. E. C., Daily, J. W., Paparizos, L., Reardon, F., Yang, V., Zukoski, E. E.   +5 more
core  

A case study of real-time monitoring of solid-state phase transformations in acoustically levitated particles using near infrared and Raman spectroscopy

European Journal of Pharmaceutical Sciences, 2013
The objective of this study was to monitor the amorphous-to-crystalline solid-state phase transformation kinetics of the model drug ibuprofen with spectroscopic methods during acoustic levitation. Chemical and physical information was obtained by real-time near infrared (NIRS) and Raman spectroscopy measurements.
Rehder, S., Wu, J.X., Laackmann, J., Moritz, H.-U., Rantanen, J., Rades, T., Leopold, C.S.   +6 more
openaire   +3 more sources

Unlocking Multi‐Valley Energy Pockets and Interface‐Induced Phonon Filtering in InSb Thermoelectrics by Reaction‐Driven Interface Engineering

Advanced Functional Materials, EarlyView.
InSb, a narrow‐bandgap semiconductor with high carrier mobility, is promising for thermoelectric energy conversion but suffers from high lattice thermal conductivity and strong bipolar conduction. Here, in situ interface engineering using Co2O3 nanoprecursors forms hierarchical CoSbx/In2O3/CoSb3 heterostructures that enhance phonon scattering and ...
Jiwu Xin, Xiao Yang, Xiao‐Lei Shi, Chengyun Xu, Xi Ling, Pengyu Zhang, Jinfeng Dong, Yong Du, Haisheng Chen, Ting Zhang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

Applications of Various Methods of Analysis to Combustion Instabilities in Solid Propellant Rockets [PDF]

, 1996
Instabilities of motions in a combustion chamber are consequences of the coupled dynamics of combustion processes and of the flow in the chamber. The extreme complexities of the problem always require approximations of various sorts to make progress in
Culick, F. E. C., Roh, T. S.
core  

Self-Organization in Multimode Microwave Phonon Laser (Phaser): Experimental Observation of Spin-Phonon Cooperative Motions

, 2003
An unusual nonlinear resonance was experimentally observed in a ruby phonon laser (phaser) operating at 9 GHz with an electromagnetic pumping at 23 GHz.
A. A. Antipin, A. M. Samson, C. O. Weis, D. N. Makovetskii, D. N. Makovetskii, D. N. Makovetskii, E. M. Ganapol’skii, E. M. Ganapol’skii, E. M. Ganapol’skii, K. Staliunas, K. Weisenfeld, M. Georgiou, V. A. Golenishchev-Kutuzov, V. A. Vasil’ev   +13 more
core   +1 more source

Sound velocity and equation of state in liquid cesium at high pressure and high temperature

Physical review B, 2018
Liquid cesium (l-Cs) sound velocity at high densities was investigated along a 500-K isotherm using high-pressure picosecond acoustics measurements. At 2.0 GPa, the liquid sound velocity goes through a maximum versus pressure without any change on the ...
F. Decremps, S. Ayrinhac, M. Gauthier, D. Antonangeli, M. Morand, Y. Garino, P. Parisiades   +6 more
semanticscholar   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source

A Multidomain Spectral Method for Analysis of Interior Vibroacoustic Systems with Segmented Boundaries

Shock and Vibration, 2020
Spectral methods have previously been applied to analyze a multitude of vibration and acoustic problems due to their high computational efficiency. However, their application to interior structural acoustics systems has been limited to the analysis of a ...
Zhenguo Zhang, Haiting Yu, Ningyuan Duan, Hongxing Hua   +3 more
doaj   +1 more source