Results 61 to 70 of about 15,502,162 (342)

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

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

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

Semilogarithmic Nonuniform Vector Quantization of Two-Dimensional Laplacean Source for Small Variance Dynamics [PDF]

, 2012
In this paper high dynamic range nonuniform two-dimensional vector quantization model for Laplacean source was provided. Semilogarithmic A-law compression characteristic was used as radial scalar compression characteristic of two-dimensional vector ...
Panic, S., Peric, Z., Savic, M.
core   +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   +3 more sources

Reionization: Characteristic Scales, Topology and Observability [PDF]

, 2007
Recently the numerical simulations of the process of reionization of the universe at z>6 have made a qualitative leap forward, reaching sufficient sizes and dynamic range to determine the characteristic scales of this process.
A. Bunker, D.N. Spergel, E.R. Stanway, G. Mellema, G.P. Holder, Garrelt Mellema, H. Trac, I.T. Iliev, I.T. Iliev, I.T. Iliev, I.T. Iliev, Ilian T. Iliev, J.E. Rhoads, M.G. Santos, Marcelo A. Alvarez, O. Doré, O. Zahn, P. Madau, P. Tozzi, Patrick McDonald, Paul R. Shapiro, R.H. Becker, S.R. Furlanetto, S.R. Furlanetto, Ue-Li Pen, W. Hu, X. Fan   +26 more
core   +1 more source

Dynamic characteristics of flexural ultrasonic transducers [PDF]

Proceedings of Meetings on Acoustics, 2017
The flexural ultrasonic transducer is a robust and inexpensive device which can be used as either a transmitter or receiver of ultrasound, commonly used as proximity sensors or in industrial metrology systems. Their simple construction comprises a piezoelectric disc bonded to a metal cap, which is a membrane that can be considered as a constrained ...
Feeney, Andrew, Kang, Lei, Rowlands, George, Dixon, Steve   +3 more
openaire   +3 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source