Results 41 to 50 of about 2,017,097 (307)

The Effect of Dynamic Cold Storage Packed Bed on Liquid Air Energy Storage in an Experiment Scale

Energies, 2021
Liquid air energy storage (LAES) is one of the most promising large-scale energy storage technologies for the decarburization of networks. When electricity is needed, the liquid air is utilized to generate electricity through expansion, while the cold ...
Yong Bian, Chen Wang, Yajun Wang, Run Qin, Shunyi Song, Wenhao Qu, Lu Xue, Xiaosong Zhang   +7 more
doaj   +1 more source

Dynamic and spectral mixing in nanosystems [PDF]

, 2010
In the framework of simple spin-boson Hamiltonian we study an interplay between dynamic and spectral roots to stochastic-like behavior. The Hamiltonian describes an initial vibrational state coupled to discrete dense spectrum reservoir.
A. J. Leggett, A. O. Caldeira, A. V. Benderskii, C. J. Fecko, D. E. Logan, E. I. Kats, E. P. Wigner, F. Haake, G. M. Zaslavskii, H. Bateman, J. M. Thomas, K. R. Rodriguez, M. L. Mehta, O. P. Charkin, P. Grigolini, R. C. Snyder, R. M. Gray, R. Zwanzig, T. Ishioka, T. Papenbrock, V. A. Benderskii, V. A. Benderskii, V. A. Benderskii, V. A. Benderskii, Ya. G. Sinai   +24 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Experimental study on dynamic characteristics of calcareous sand-gravel mixtures from islands in the South China Sea

Yantu gongcheng xuebao
In the construction process of reef islands in the South China Sea, the upper reclamation foundation materials exist in the form of a combination of large calcareous gravels and small calcareous sand mixed in random proportions.
WU Yang 1, WU Yihang 1, 2, MA Linjian 3, CUI Jie 1, LIU Jiankun 2, DAI Beibing 2
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Dynamics Model and Its Verification of Aerospace Three-Ring Gear Reducer

Aerospace
This paper proposes a nonlinear dynamic modeling method based on the lumped mass approach to address the challenge of modeling the vibrations of the output external gear and internal gear plate in an aerospace three-ring gear reducer.
Jinyong Lai, Lan Luo, Guangzhao Luo, Shiyuan Chao   +3 more
doaj   +1 more source

Correlation Analysis of the Hydrodynamic Characteristics and Stability of a Self-balancing Multistage Pump [PDF]

Journal of Applied Fluid Mechanics
The BB5 series multistage centrifugal pump is commonly utilized for its capacity to deliver a large head. However, due to the long rotor system in the BB5 series multistage pump, the unsteady flow field structure of each impeller at every stage ...
W. S. Ma, D. W. Wang, Y. B. Li, R. Cao, Y. C. Yang   +4 more
doaj   +1 more source

Experimental study on the dynamic mechanical characteristics of slope rock under low-temperature conditions

工程科学学报, 2023
China has large regions that freeze seasonally or multiple times a year. Special geological and climatic conditions must be considered for the engineering construction and mining of mineral resources in these regions, and slope stability in cold regions ...
Feng GAO, Gen YANG, Xin XIONG, Ke-ping ZHOU, Cong LI, Jie-lin LI   +5 more
doaj   +1 more source

Identification of Photovoltaic Arrays' Maximum Power Extraction Point via Dynamic Regressor Extension and Mixing

, 2016
This paper deals with the problem of identification of photovoltaic arrays' maximum power extraction point---information that is encrypted in the current-voltage characteristic equation.
Aranovskiy, Ariyur, Carrasco, Hernandez-Gomez, Keyhani, Ljung, Masters, Meza, Sastry, Tian   +9 more
core   +2 more sources

Photoluminescence and spectral switching of single CdSe/ZnS colloidal nanocrystals in poly(methyl methacrylate) [PDF]

, 2007
Emission from single CdSe nanocrystals in PMMA was investigated. A fraction of the nanocrystals exhibiting switching between two energy states, which have similar total intensities, but distinctly different spectra were observed.
K. T. Shimizu, L. J. Sham, L. V. Butov, Lin Pang, Martin Griswold, Sen Yang, Y. Fainman, Yaoming Shen   +7 more
core   +1 more source