Results 51 to 60 of about 177,367 (278)

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Electronically Adjustable Emulator of the Fractional-Order Capacitor

Elektronika ir Elektrotechnika, 2019
This paper presents a design of the controllable emulator of the FOC (Fractional-Order Capacitor) and its application. The circuit is based on 5th-order RC topology (type Foster I), where the passive elements in the topology are replaced by ...
Jan Dvorak, David Kubanek, Norbert Herencsar, Aslihan Kartci, Panagiotis Bertsias   +4 more
doaj   +1 more source

CFOA-Based Fractional Order PIλDδ Controller [PDF]

Electronics, 2017
Conventional Current Feedback Operational Amplifier (CFOA) is not current controllable or not electronically controllable. It is thus of interest to add a current mirror into the CFOA in order to make it current controllable.
Tada Comedang, Pattana Intan
doaj   +1 more source

Fractional Order Curves

Symmetry
This paper continues the subject of symmetry breaking of fractional-order maps, previously addressed by one of the authors. Several known planar classes of curves of integer order are considered and transformed into their fractional order. Several known planar classes of curves of integer order are considered and transformed into their fractional order.
Marius-F. Danca, Jagan Mohan Jonnalagadda   +1 more
openaire   +1 more source

On Fractional-order PID Controllers [PDF]

IFAC-PapersOnLine, 2018
A new Fractional Order Proportional-Integral (FOPI) controller tuning method is proposed in this paper for process control systems. This is achieved by combining Biggest Log-modulus Tuning (BLT) method and Internal Model Control (IMC) method of designing conventional PID controllers to tuning FOPI controllers for multivariable processes.
Edet, Emmanuel, Katebi, Reza
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Fractional-Order Inductor: Design, Simulation, and Implementation

IEEE Access, 2021
Fractional calculus has tremendous potential in modeling the evolution of complex systems including those with memory. Indeed, fractional-order models are more accurate in approximating non-locally distributed dynamics with short- or long-term memory ...
Li Zhang, Aslihan Kartci, Ahmed Elwakil, Hakan Bagci, Khaled N. Salama   +4 more
doaj   +1 more source

Fractional-order operators: Boundary problems, heat equations

, 2018
The first half of this work gives a survey of the fractional Laplacian (and related operators), its restricted Dirichlet realization on a bounded domain, and its nonhomogeneous local boundary conditions, as treated by pseudodifferential methods.
Bartłomiej Dyda, D Applebaum, D Lamberton, Elmar Schrohe, G Grubb, G Grubb, G Grubb, Gerd Grubb, Gerd Grubb, Gerd Grubb, Gerd Grubb, H Amann, Helmut Abels, Helmut Abels, Héctor Chang Lara, Krzysztof Bogdan, L Boutet de Monvel, Luis A. Caffarelli, Luis Caffarelli, M Gonzalez, Mariusz Żaba, Matthieu Felsinger, Nicola Abatangelo, R Frank, R Seeley, Robert Denk, S Dipierro, T Boulenger, T Jin, T Leonori, U Biccari, U Biccari, X Ros-Oton, X Ros-Oton, X Ros-Oton, Xavier Fernández-Real, Xavier Ros-Oton, Xavier Ros-Oton, Xavier Ros-Oton, Z-Q Chen   +39 more
core   +1 more source

Discretization of Fractional Order Differentiator and Integrator with Different Fractional Orders

Intelligent Control and Automation, 2017
This paper is concerned with the discretization of the fractional-order differentiator and integrator, which is the foundation of the digital realization of fractional order controller. Firstly, the parameterized Al-Alaoui transform is presented as a general generating function with one variable parameter, which can be adjusted to obtain the ...
Qi Zhang, Baoye Song, Huadong Zhao, Jiansheng Zhang   +3 more
openaire   +2 more sources