Results 91 to 100 of about 3,921,823 (274)

Programmable Carrier‐Free All‐Enzyme Beads for Modular Continuous‐Flow Biocatalysis

Advanced Materials, EarlyView.
Genetically encoded enzyme building blocks self‐assemble into monodisperse, carrier‐free protein beads via a droplet‐based formulation strategy. These programmable catalytic particles enable modular continuous‐flow biocatalysis, from single‐enzyme reactions to multi‐enzyme cascades and bead–bead coupled reactor systems.
Jennifer Kühne, Julian S. Hertel, André Delavault, Judith Felk, Martin Peng, Lara Reuber, Felix Ott, Kim Wanner, Marc F. Münker, Adrian Neukirch, Alexei Kiselev, Kersten S. Rabe, Christof M. Niemeyer   +12 more
wiley   +1 more source

M3D‐DPWM strategy for three‐phase four‐leg inverter with higher harmonic suppression capability

IET Power Electronics
Three‐phase four‐leg inverters are widely used in power systems due to their inherent ability to handle unbalanced loads. However, with conventional 3D space vector pulse width modulation (3D‐SVPWM), high harmonics of large amplitude exist in the output ...
Ning Li, Panpan Shen, Jie Li, Jiale Hu, Changjie Zhang   +4 more
doaj   +1 more source

Study and comparison of discontinuous modulation for modular multilevel converters in motor drive applications [PDF]

, 2018
Discontinuous modulation applied to modular multilevel converters is an effective method for reducing the capacitor voltage ripples. In this paper, the discontinuous modulation is adapted and used in a motor drive application. For proper operation of the
Pou, Josep, Picas Prat, Ricard, Capella, Gabriel J., Picas, Ricard, Pou Félix, Josep, Zaragoza Bertomeu, Jordi, Ceballos Recio, Salvador, Capella, Gabriel Jose, Zaragoza, Jordi, Ceballos, Salvador, Konstantinou, Georgios, Capellá Frau, Gabriel José   +11 more
core   +1 more source

Tamper‐Responsive Physical Unclonable Functions via Graphene‐Interlayered Block Copolymer Random Structures

Advanced Materials, EarlyView.
Self‐invalidating multilayer physical unclonable functions (PUFs) integrate fingerprint‐like metal nanopattern bilayers from block copolymer templates with highly reactive reduced graphene oxide (rGO) interlayers. This tamper‐responsive architecture blocks all unauthorized physical and chemical replication attempts while autonomously deactivating ...
Gyu Hui Jo, Dae Hui Park, Jeong‐Ho Jang, Woo Seok Tack, Jin Man Kim, Hak Ki Yu, Hyeong Min Jin, Jang Hwan Kim   +7 more
wiley   +1 more source

Control of Ripple Eliminators to Improve the Power Quality of DC Systems and Reduce the Usage of Electrolytic Capacitors

IEEE Access, 2016
The problem of voltage/current ripples has become a primary power quality issue for dc systems, which could seriously degrade the performance on both the source side and the load side and lead to reliability concerns.
Qing-Chang Zhong, Wen-Long Ming, Xin Cao, Miroslav Krstic   +3 more
doaj   +1 more source

Seamless Mechanical Programming Through Hybrid Epoxy–Acrylate Printing for Soft–Rigid Robots

Advanced Materials, EarlyView.
Hybrid epoxy‐acrylate printing enables seamless fabrication of soft–rigid robotic systems with covalently integrated interfaces and functionally graded mechanics. Grayscale exposure expands the accessible material space, enabling spatially programmed actuation through patterned stiffness while revealing the mechanics and durability of continuously ...
David C. Bershadsky, Franz A. Stolpen, Zachariah A. Page, Lillian Chin   +3 more
wiley   +1 more source

Resonances of the SD oscillator due to the discontinuous phase

, 2011
Resonance phenomena of a harmonically excited system with mul-tiple potential well play an important role in nonlinear dynamics research.In this paper, we investigate the resonant behaviours of a discontinuous dynamical system with double well potential ...
Wiercigroch, Marian, Cao, Qingjie, Xiong, Yeping   +2 more
core   +1 more source

Novel modulation strategy for a CLC resonant dual active bridge

, 2015
This paper proposes a novel modulation strategy for a phase controlled Capacitor-Inductor-Capacitor (CLC) Resonant Dual Active Bridge (RDAB). The proposed modulation strategy improves the soft turn-on, Zero-Current-Switching (ZCS) and Zero-Voltage ...
G. R. Walker, Madawala, U.K., Vilathgamuwa, D.M., W. L. Malan, Thrimawithana, D.J., U. K. Madawala, D. J. Thrimawithana, Malan, W.L., Walker, G.R., D. M. Vilathgamuwa   +9 more
core   +1 more source

Thermoplastic Dielectric Coatings for Flexible Electrodynamic Dust Shields: Structural and Functional Performance

Advanced Materials Interfaces, EarlyView.
Thermoplastic attachment is introduced as a scalable surface coating strategy to improve the durability and dielectric reliability of flexible electrodynamic dust shields. By embedding chemically modified reduced graphene oxide (CMrGO) electrodes within thermoplastic laminates, mechanical degradation, abrasion damage, and vacuum‐induced electrical ...
Ide E. Onal, Emily A. Ryan, Luca Scifoni, Thomas M. Orlando, Álvaro Romero‐Calvo, Julie S. Linsey, Meisha L. Shofner   +6 more
wiley   +1 more source

Uniform payoff security and Nash equilibrium in metric games [PDF]

We introduce a condition, uniform payoff security, for games with separable metric strategy spaces and payoffs bounded and measurable in players' strategies. We show that if any such metric game G is uniformly payoff secure, then its mixed extension G is
Paulo Klinger Monteiro, Frank H. Page Jr.   +1 more
core