Results 251 to 260 of about 1,271,205 (290)

Mechanically Programmable DNA Hydrogel Microparticles for 3D Cellular Systems

Advanced Materials, EarlyView.
DNA hydrogel microparticles are designed to exhibit controllable viscoelasticity and stiffness across three orders of magnitude from 30Pa$30 \,\mathrm{Pa}$ to 6.5kPa$6.5 \,\mathrm{kPa}$. They are uptaken into fibroblast spheroids where they are actively remodeled by cellular forces depending on their mechanical properties.
Tobias Walther, Eleni Dalaka, Gotthold Fläschner, Manuel Gómez‐González, Ilia Platzman, Sadaf Pashapour, Michelle Emmert, Pere Roca‐Cusachs, Xavier Trepat, Kerstin Göpfrich   +9 more
wiley   +1 more source

Synthesis and analysis of a novel thermal interface material for DC-DC boost converter. [PDF]

Sci Rep
Hamza A, Mahmood M, Ulasyar A, Kazmi SNA, Iqbal S, Ghadi YY, Almuflih AS, Elbarbary ZMS.   +7 more
europepmc   +1 more source

Control of three-level quadratic DC-DC boost converters for energy systems using various technique-based MPPT methods. [PDF]

Sci Rep
Belhadj SM, Meliani B, Benbouhenni H, Colak I, Elbarbary ZMS, Al-Gahtani SF.   +5 more
europepmc   +1 more source

Experimental evaluation of DC-DC buck converter based on adaptive fuzzy fast terminal synergetic controller. [PDF]

Sci Rep
Anane Z, Babes B, Hamouda N, Benaouda OF, Alotaibi S, Alzahrani T, Aeggegn DB, Ghoneim SSM.   +7 more
europepmc   +1 more source

Design and analysis of an interleaved step-up DC-DC converter with enhanced characteristics. [PDF]

Sci Rep
Hosseinpour M, Seifi E, Seifi A, Shahparasti M.   +3 more
europepmc   +1 more source

A total loss minimization modulation for series-resonant dual-active-bridge dc-dc converter with triple phase shift control. [PDF]

Sci Rep
Zhou S, Wang J, Tang J.
europepmc   +1 more source

Transformer-less high gain DC-DC converter design and analysis for fuel cell vehicles. [PDF]

Sci Rep
Aljafari B, Kareri T, Thanikanti SB, Selvarajan S.   +3 more
europepmc   +1 more source

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Capacitorless DC-DC converter

Proceedings of the 2014 IEEE Emerging Technology and Factory Automation (ETFA), 2014
Linear-assisted DC/DC converters (or linear-switching hybrid DC/DC converters) consist of a voltage linear regulator (classic NPN or nMOS topologies and LDO) connected in parallel with a switching DC/DC converter. In order to control these hybrid structures, different strategies exist, allowing to fix the switching frequency as a function of some ...
Herminio Martínez-Garcia, Antoni Grau-Saldes   +1 more
openaire   +1 more source

A converter based on energy injection control for AC-AC, AC-DC, DC-DC, DC-AC conversion

2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2018
Unlike the traditional converter, this paper analyses the feature of the converter based on energy injection control, which can achieve the AC-AC, AC-DC, DC-DC and DC-AC conversion. The detailed operations of the switches in energy injection mode and free oscillation mode are described.
Mei Su, Ziyi Zhao, Qi Zhu, Hanbing Dan
openaire   +1 more source

An educational tool for DC-DC converter

2011 10th International Conference on Environment and Electrical Engineering, 2011
In this study, an educational tool has been prepared for a shorter term and more economic education of power electronics circuits. Virtual instruments and distributed systems are of great interest to create advanced and flexible teaching and experimentation environments for measurement technologies at limited costs.
SCHIRRIPA SPAGNOLO, Giuseppe, DONATO PAPALILLO, ANDREA MARTOCCHIA   +2 more
openaire   +1 more source