Results 41 to 50 of about 2,190,945 (258)

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Mechanism analysis on a type of limit induced oscillation for single‐machine infinite‐bus system of PMSG with positive damping

IET Renewable Power Generation
The mechanism of oscillations that occur in the system connected to renewable energy sources is complex, generally including negative damping oscillation, limit induced oscillation etc.
Yuntao Wang, Zhe Zhang, Yuchen Feng, Ancheng Xue   +3 more
doaj   +1 more source

Maximal Good Step Graph Methods for Reducing the Generation of the State Space

IEEE Access, 2019
This paper proposes an effective method based on the two main partial order techniques which are persistent sets and covering step graph techniques, to deal with the state explosion problem. First, we introduce a new definition of sound steps, the firing
Hao Dou, Kamel Barkaoui, Hanifa Boucheneb, Xiaoning Jiang, Shouguang Wang   +4 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

A new forward‐flyback converter without right half plane zero

IET Power Electronics
Due to its unique features, the flyback converter is widely used to convert DC to DC power. This converter has a non‐minimum phase (NMP) dynamic behavior, which is one of its most significant disadvantages.
Sayed Mohsen Ahmadi, Navid Reza Abjadi, Sayed Vahid Mirmoghtadaei, Ehsan Adib   +3 more
doaj   +1 more source

Deep 1D Landmark Representation Learning for Space Target Pose Estimation

Remote Sensing, 2022
Monocular vision-based pose estimation for known uncooperative space targets plays an increasingly important role in on-orbit operations. The existing state-of-the-art methods of space target pose estimation build the 2D-3D correspondences to recover the
Shengli Liu, Xiaowen Zhu, Zewei Cao, Gang Wang   +3 more
doaj   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Output controllability of impulsive Boolean control networks based on hybrid‐index model

IET Control Theory & Applications
In biological systems, impulses are often used to model mutations in gene expression. In order to describe the instantaneity of the impulse, this paper employs a hybrid‐index model of impulsive Boolean networks with state‐triggered impulses.
Qianya Liang, Rongpei Zhou, Jie Chen, Yong Ding   +3 more
doaj   +1 more source

Estimating sea lice infestation pressure on salmon farms: Comparing different methods using multivariate state-space models

Epidemics, 2020
Sea lice are ectoparasites of salmonids, and are considered to be one of the main threats to Atlantic salmon farming. Sea lice infestation on a farm is usually initiated by attachment of the free-living copepodid stage derived from the surrounding water,
Adel Elghafghuf, Raphael Vanderstichel, Larry Hammell, Henrik Stryhn   +3 more
doaj   +1 more source

Bootstrap prediction intervals in state-space models [PDF]

, 2008
Prediction intervals in state-space models can be obtained by assuming Gaussian innovations and using the prediction equations of the Kalman filter, with the true parameters substituted by consistent estimates. This approach has two limitations.
Ruiz Ortega, Esther, Ro Rodriguez, Esther Ruiz, Rodríguez, Alejandro, Ruiz, Esther, Alejandro Rodriguez   +5 more
core   +1 more source