Results 51 to 60 of about 310,366 (299)

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Randomized preclinical study of machine perfusion in vascularized composite allografts

BJS (British Journal of Surgery), EarlyView., 2020
This study was designed to identify the optimum machine perfusion parameters for preservation of limbs before transplantation, and determine whether this was better than cold storage. Normothermic machine perfusion at a pressure of 70 mmHg (NMP‐70) provided superior preservation to cold storage after transplantation.
K. R. Amin, J. P. Stone, J. Kerr, A. Geraghty, L. Joseph, A. Montero‐Fernandez, J. K. Wong, J. E. Fildes   +7 more
wiley   +1 more source

Near-Field Matching and Universal Limits on Electromagnetic Energy Transfer

Mathematics, 2023
This article introduces the concept of near-field (NF) matching as a continuum-mode generalization of port matching in circuit theory suitable for field-theoretic electromagnetic energy transfer scenarios, with a focus on spatio-frequency processes in ...
Said Mikki
doaj   +1 more source

M[pi]log, Macromodeling via parametric identification of logic gates [PDF]

, 2003
This paper addresses the development of computational models of digital integrated circuit input and output buffers via the identification of nonlinear parametric models. The obtained models run in standard circuit simulation environments, offer improved
Canavero, Flavio, Maio, Ivano Adolfo, Stievano, Igor Simone   +2 more
core   +1 more source

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

Advanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar, Carlos Alejandro Jimenez‐Rodriguez, Railia Biktimirova, Ilka Hermes, Thomas Kurth, My Duyen Pham, Mikhail Tsurkan, Jens Friedrichs, Francis L. C. Morgan, Hans Kleemann, Olga Guskova, Uwe Freudenberg, Peter Fratzl, Carsten Werner, Christoph Tondera, Ivan R. Minev   +15 more
wiley   +1 more source

Design and implementation of LDPC encoder based on FPGA

Journal of Measurement Science and Instrumentation, 2021
A low density parity check（ LDPC） encoder with the codes of（8 176, 7 154） and encoding rate of 7/8 under CCSDS standard for near space communication is designed. Based on LDPC encoding theory, the FPGA-based coding algorithm is designed.
WANG Guodong, LI Jinming, ZHENG Zhiwang, TIAN Denghui   +3 more
doaj  

Static and dynamic aspects of an air gap capacitor [PDF]

, 1992
This paper deals with the theory of an air-gap capacitor used as a micromechanical resonator. Both static and dynamic aspects are discussed. A single-element approach for the electrostatic excitation and capacitive detection of the vibrational motion of ...
IJntema, Dominicus J., Tilmans, Harrie A.C.   +1 more
core   +3 more sources

3D Printed Multimaterial Microfluidic Transistors

Advanced Materials Technologies, EarlyView.
We introduce a biocompatible, high resolution photopolymer resin that closely mimics the Young's Modulus (elasticity) and reversible stretchability (no hysteresis) of poly(dimethylsiloxane) (PDMS), enabling the fabrication of microfluidic transistors (i.e., microvalves capable of proportional amplification) by multimaterial stereolithography (mSLA ...
Alireza Ahmadianyazdi, Wei Huang, Kaustav A. Gopinathan, Ivan Stepanov, Lisa Horowitz, Ting‐Yuan Tu, Mehmet Toner, Albert Folch   +7 more
wiley   +1 more source

Design, Modeling and Synthesis of Negative Group Delay IL-Shape Topology

IEEE Access, 2019
This paper introduces a negative group delay (NGD) theory of passive topology presenting “IL”-shape geometry. The two-port topology is comprised of a coupled line with an open- and stub-loaded terminations.
Blaise Ravelo, Ningdong Li, Fayu Wan, Jiao Feng   +3 more
doaj   +1 more source

Locally-Stable Macromodels of Integrated Digital Devices for Multimedia Applications [PDF]

, 2008
This paper addresses the development of accurate and efficient behavioral models of digital integrated circuits for the assessment of high-speed systems.
Canavero, Flavio, Maio, Ivano Adolfo, Siviero, Claudio, Stievano, Igor Simone   +3 more
core   +1 more source