Results 71 to 80 of about 3,212,271 (295)

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Extended state observer based fractional order sliding mode control for steer‐by‐wire systems

open access: yesIET Control Theory & Applications
In this paper, an extended state observer based fractional‐order sliding mode control strategy is studied for vehicle steer‐by‐wire systems (SBWSs). The parameter perturbation and external interference are considered in the dynamic model of SBWSs.
Quangang Shi   +5 more
doaj   +1 more source

Sliding mode-based velocity and torque controllers for permanent magnet synchronous motor drives system

open access: yesThe Journal of Engineering, 2019
To minimise the torque ripple for vector control of interior permanent magnet synchronous motor (IPMSM) of railway traction system, this study proposes a new velocity, torque and current three-loop control system, and designs a velocity and torque ...
Kaihui Zhao   +6 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Modeling dynamic systems of variable structure [PDF]

open access: yes, 1984
Reliable software tools for mathematical modeling have been developed for simulation models but for constrained optimization models progress has been slower. The following approach examines the possibility of working with large-scale mathematical models in a compact form permitting the direct analysis of input-output relations where information is ...
openaire   +3 more sources

Machine learning–based robust trajectory tracking control for FSGR

open access: yesThe Journal of Engineering, 2019
Here, a robust adaptive trajectory tracking algorithm is proposed for free-form surface grinding robot (FSGR) in metal surface production line. Machine-learning method is used for robot dynamic approximation which is hard to obtain directly. Adaptive law
Lin Jia   +5 more
doaj   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Fault-tolerant matrix-converter-controlled IPMSM-drive system using a predictive controller and sliding-mode estimator

open access: yesThe Journal of Engineering, 2019
This study proposes a fault-tolerant matrix-converter-controlled IPMSM-drive system, in which a predictive speed-loop controller and a predictive current-loop controller are implemented to improve its dynamic responses, including transient responses and ...
Tian-Hua Liu, Shuo-Feng Chang
doaj   +1 more source

Improving the Scalability of Multi-Agent Systems

open access: yes, 2000
There is an increasing demand for designers and developers to construct ever larger multi-agent systems. Such systems will be composed of hundreds or even thousands of autonomous agents. Moreover, in open and dynamic environments, the number of agents in
Jennings, N. R., Turner, Phillip J.
core   +1 more source

Проблемы применения систем управления с переменной структурой [PDF]

open access: yes, 2015
Extensive use of control systems with variable structure prevents ignoring effects of real ...
Тутов, Иван Андреевич
core  

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