Results 51 to 60 of about 630,759 (334)

Microwave Photonic Pulse Generation With High Transfer Rate and Precision Pulse Width by Partly Temporally-Overlapped Photon Echo Excitation

open access: yesIEEE Photonics Journal, 2022
Microwave photonic pulse generation has intrinsic high speed and large bandwidth, and it can overcome the sampling-rate limitation in the electrical domain. Herein, we propose a partly temporally-overlapped photon echo scheme to generate microwave pulses
Xiangrong Wang   +3 more
doaj   +1 more source

Highly Stable Low‐Temperature Phosphate Glass as a Platform for Multimaterial 3D Printing of Integrated Functional Microfluidic Devices

open access: yesAdvanced Engineering Materials, EarlyView.
A highly stable, low‐temperature phosphate glass is developed for multimaterial additive manufacturing of multifunctional microfluidics. Glass, metal conductors, and sacrificial polymer are coprinted, enabling monolithic fabrication. The sacrificial paste forms precise channels and decomposes during sintering.
Babak Mazinani   +2 more
wiley   +1 more source

Constant-amplitude, frequency- independent phase shifter [PDF]

open access: yes, 1971
Electronic circuit using operational amplifiers provides output with constant phase shift amplitude, with respect to sinusoidal input, over wide range of frequencies. New circuit includes field effect transistor, Q, operational amplifiers, A1 and A2, and
Deboo, G. J.
core   +1 more source

Time-resolved PhotoEmission Spectroscopy on a Metal/Ferroelectric Heterostructure [PDF]

open access: yes, 2013
In thin film ferroelectric capacitor the chemical and electronic structure of the electrode/FE interface can play a crucial role in determining the kinetics of polarization switching.
Agnus, G.   +10 more
core   +1 more source

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung   +14 more
wiley   +1 more source

Broadband RF-distribution amplifier [PDF]

open access: yes, 1972
Radio frequency amplifier to distribute reference frequencies within communications systems and provide automatic gain control with low phase distortion is described.
Lutes, G. F., Jr.
core   +1 more source

Blackbox Quantization of Superconducting Circuits using exact Impedance Synthesis

open access: yes, 2014
We propose a new quantization method for superconducting electronic circuits involving a Josephson junction device coupled to a linear microwave environment. The method is based on an exact impedance synthesis of the microwave environment considered as a
Abraham, David W.   +2 more
core   +1 more source

Topological Design of a Trabecular Bone Structure With Morphology and Mechanics Control for Additive Manufacturing

open access: yesIEEE Access, 2021
Porous metals are found to be suitable as orthopedic scaffolds. However, only limited control over the internal architecture can be achieved using conventional design methods.
Rong Liu   +4 more
doaj   +1 more source

Mechanically Adaptable High‐Performance p(SBMA‐MMA) Copolymer Hydrogel with Iron (II/III) Perchlorate for Wearable Thermocell Applications

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A high‐performance n‐type element for quasi‐solid‐state thermocells has been introduced, outperforming conventional p‐type elements and showcasing the potential to harness body heat as an energy source or power embedded sensors. This advance significantly contributes to waste thermal energy harvesting and wearable technology, paving the way for self ...
Gilyong Shin   +10 more
wiley   +1 more source

Automatic cross-sectioning and monitoring system locates defects in electronic devices [PDF]

open access: yes, 1971
System consists of motorized grinding and lapping apparatus, sample holder, and electronic control circuit. Low power microscope examines device to pinpoint location of circuit defect, and monitor displays output signal when defect is located ...
Jacobs, G., Slaughter, B.
core   +1 more source

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