Results 71 to 80 of about 6,198 (180)

Dual‐Field Synergistic Orientation of Carbon Fibers for High‐Efficiency Thermal Management

open access: yesCarbon Energy, EarlyView.
The sample fabricated by synergistically combining reversed electric and low magnetic fields, with photocurable PEG/PPG gel serving as the matrix, exhibits excellent machinability and flexibility. Meanwhile, the thermal conductivity enhancement efficiency of this work is 1351%, significantly superior to similar carbon fiber composite materials ...
Zujian Zhao   +15 more
wiley   +1 more source

Subthreshold Time‐Mode All‐Digital DLL With Built‐In Linearization

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
This paper presents a subthreshold time‐mode all‐digital delay‐locked loop (DLL) for low‐frequency clock generation. The large and tunable delay of the DLL is obtained using a static inverter delay line whose supply voltage is in the vicinity of 100 mV and adjustable by varying supply voltage. Phase error is processed by a time‐mode proportional block (
Fei Yuan, Wenhao Wu, Yushi Zhou
wiley   +1 more source

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam   +3 more
wiley   +1 more source

Reconfigurable Logic Operation of MoTe2 Homojunction Enabled by Staggered Double‐Sided Contacts

open access: yesElectron, EarlyView.
A gap adjacent to an electrode in the MoTe2 SDC transistor enables polarity reconfiguration, switching between p‐type and n‐type depending on bias polarity. This reconfiguration is ensured when the absolute bias voltage is less than the gate voltage, yielding a near‐ideal subthreshold swing of 67.6 mV/dec and on/off ratios of 104–106.
Jun‐Qiang Zhang   +7 more
wiley   +1 more source

Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors

open access: yesEnergy Science &Engineering, EarlyView.
A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri   +4 more
wiley   +1 more source

Proposal of High-Temperature-Operation Tolerant SOI MOSFET and Preliminary Study on Device Performance Evaluation

open access: yesActive and Passive Electronic Components, 2011
We propose a high-temperature-operation (HTOT) SOI MOSFET and show preliminary simulation results of its characteristics. It is demonstrated that HTOT SOI MOSFET operates safely at 700 K with no thermal instability because of its expanded effective ...
Yasuhisa Omura
doaj   +1 more source

The Feasibility Test of Electric Propulsion Systems: Case Study for a Light and Fixed‐Wing Aircraft

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This study investigates the feasibility and performance of a fully electric propulsion system (EPS) integrated into a light fixed‐wing aircraft. The system consists of a 65 kW‐class electric motor, a high‐efficiency inverter, and dual lithium‐ion battery packs with a total capacity of 27 kWh—collectively engineered to fulfill both power ...
Byeong Gyu Gang
wiley   +1 more source

Self-heating effect modeling of a carbon nanotube-based fieldeffect transistor (CNTFET) [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2019
We present the design and simulation of a single-walled carbon nanotube(SWCNT)-based field-effect transistor (FET) using Silvaco TCAD. In this paper, theself-heating effect modeling of the CNT MOSFET structure is performed and comparedwith conventional ...
Kazem Pourchitsaz   +1 more
doaj  

Organic neuromorphic optoelectronic sensing materials, intelligent devices, and bionic systems

open access: yesInfoMat, EarlyView.
Due to the excellent performance and biocompatibility, organic neuromorphic photoelectric sensing technology is regarded as a highly promising research field. In this review, Liu et al. summarize the recent advances in related materials, devices, and system integration.
Yu‐ang Liu   +4 more
wiley   +1 more source

Real‐Time Fractional Control of an Electrohydraulic System Using Low‐Cost Technology

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Advances in control methods for electrohydraulic systems (EHS) improve performance by addressing nonlinearities and unknown parameters, although most studies are limited to numerical simulations. Furthermore, research with experimental validation often relies on high‐performance computing equipment, specialized data acquisition cards, and ...
Edgar H. Robles‐Sauceda   +5 more
wiley   +1 more source

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