Results 111 to 120 of about 14,088,991 (233)

Regulating Phase Evolution and Crystallization Dynamics Enables Low Open‐Circuit Voltage Deficit in Wide‐Bandgap Cu2ZnSnS4 Solar Cells

open access: yesAdvanced Materials, EarlyView.
Bilayer composition‐modulated sulfurization (BCMS) regulates Cu redistribution in solution‐processed Cu2ZnSnS4, suppressing Cu2SnS3 and favoring the direct transformation pathway, while transforming the crystallization from surface‐dominated growth to a more synchronized process.
Hang Geng   +10 more
wiley   +1 more source

A Thermoreversible Gelation Pathway to Plant Cuticle‐Inspired Biopolymer Aerogel Monoliths Based on Network‐Spherulitic Crystal Assemblies

open access: yesAdvanced Materials, EarlyView.
To address functionality limitations in plant‐based and industrially compostable polymer aerogels, this work introduces bio‐inspired aerogels with broadened functionality. Inspired by functional plant tissues, lightweight biopolymer aerogels based on exclusively stereocomplex crystals are fabricated, featuring hierarchically macro‐/meso‐porous ...
Anthony V. Tuccitto   +10 more
wiley   +1 more source

Design of a new type of pre-charge circuit of single-quadrant frequency converter

open access: yesGong-kuang zidonghua, 2013
In view of problems of complex structure and control, high cost and big volume of contactor and charging resistance existed in traditional pre-charge circuit of single-quadrant frequency converter, a new type of pre-charge circuit of single-quadrant ...
TANG Bai-shan, HUANG Cui-bai
doaj  

Pulsed Oxidative–Reductive Electrolysis Over Dual Cu and Co Single‐Atom Sites for Urea Electrosynthesis

open access: yesAdvanced Materials, EarlyView.
Alternating oxidative–reductive pulses synchronize CO2‐derived *CO and NH3‐derived *NHx intermediates over dual Cu and Co single‐atom sites, enabling urea and ethyl urea formation with a total C─N Faradaic efficiency of 42 ± 4%. In situ spectroscopy and theoretical calculations elucidate complementary Cu and Co functions, while oxidative controls ...
Putri Ramadhany   +8 more
wiley   +1 more source

A Critical Call for Mechanistic Investigations of Metal‐Bacteria Interactions

open access: yesAdvanced Materials, EarlyView.
It is well established that the antibacterial properties of metals have tremendous importance for bioengineering applications. What is not as appreciated, however, is the reproducibility crisis in this field's vast literature. In this perspective, we highlight this reproducibility problem, discuss its sources, and suggest solutions towards focused ...
J. Rackwitz   +9 more
wiley   +1 more source

Has Integration Promoted Business Cycle Synchronization in the Enlarged EU? [PDF]

open access: yes
This paper examines whether European integration, manifesting itself in increased trade and FDI linkages, new specializations and economic policy coordination, contributed to the synchronization of business cycles in the enlarged EU.
Gabriele Tondl, Nikolaos Antonakakis
core  

Advances in Bio‐Integrated Edge Computing Systems for Smart and Connected Health

open access: yesAdvanced Materials, EarlyView.
This review explores advances in bio‐integrated edge computing for healthcare, focusing on co‐designing computing, sensing, and energy strategies to overcome integration and power challenges for optimized, decentralized operation. ABSTRACT Recent advances in bio‐integrated healthcare technologies have enabled continuous, high‐resolution monitoring and ...
Gyuwon Kim   +4 more
wiley   +1 more source

Biomass DNA: An Emerging Building Block for Advanced Materials

open access: yesAdvanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

Identifiability of clock synchronization errors: a behavioural approach

open access: yes, 2009
The subject area of this paper is discrete-time linear time-invariant systems composed of subsystems whose state updating is asynchronous due to the clock signal arriving with delays.
Przedwojski, M, Rogers, E, Markovsky, I
core   +1 more source

Observer Pre-Synchronization for Smooth Transition in Wide-Speed-Range Sensorless Control of IPMSM Drives

open access: yesElectronics
To reduce transition disturbances in wide-speed-range sensorless control of interior permanent magnet synchronous motor (IPMSM) drives, this paper proposes an observer pre-synchronization method for the transition between a low-speed high-frequency-injection (HFI) estimator and an active-flux observer used in the medium- and high-speed regions. The HFI
Yaoyao Sun   +6 more
openaire   +1 more source

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