Results 71 to 80 of about 1,526,878 (350)

A modular positive feedback-based gene amplifier

Journal of Biological Engineering, 2010
Background Positive feedback is a common mechanism used in the regulation of many gene circuits as it can amplify the response to inducers and also generate binary outputs and hysteresis.
Bhalerao Kaustubh D, Rao Christopher V, Wu Kang, Nistala Goutam J   +3 more
doaj   +1 more source

Active feedback supported CMOS LNA blended with coplanar waveguide‐fed antenna for Wi‐Fi networks

IET Microwaves, Antennas & Propagation, 2021
This study presents integration of complementary CMOS active feedback low noise amplifier with coplanar waveguide fed patch antenna for Wi‐Fi networks.
Gunjan Mittal Roy, Santanu Dwari, Binod Kumar Kanaujia, Sandeep Kumar, Hanjung Song   +4 more
doaj   +1 more source

Millivolt signal limiter [PDF]

, 1969
Low-voltage limiter circuit suppresses the output of platinum probes at temperatures beyond their operating range. The limiter circuit comprises an operational amplifier with a dual feedback loop.
Hansen, I. G., Peterson, V. S.
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

Advanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández, Álex Farrando Pérez, Fernando Gordillo Gámez, Pedro G. Boj, José M. Villalvilla, José A. Quintana, Yanpei Wan, Daniel Aranda, José Manuel Marín‐Beloqui, Jishan Wu, Zebing Zeng, María A. Díaz‐García, Juan Casado   +12 more
wiley   +1 more source

Logarithmic circuit with wide dynamic range [PDF]

, 1978
A circuit deriving an output voltage that is proportional to the logarithm of a dc input voltage susceptible to wide variations in amplitude includes a constant current source which forward biases a diode so that the diode operates in the exponential ...
Manus, E. A., Wiley, P. H.
core   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

A 150-MS/s Fully Dynamic SAR-Assisted Pipeline ADC Using a Floating Ring Amplifier and Gain-Enhancing Miller Negative-C

IEEE Open Journal of the Solid-State Circuits Society
This article introduces a fully dynamic SAR-assisted pipeline analog-to-digital converter (ADC) that uses a floating ring amplifier (FLORA) and gain-enhancing Miller negative capacitance (Miller negative-C).
Seungheun Song, Taewook Kang, Seungjong Lee, Michael P. Flynn   +3 more
doaj   +1 more source

Electrometer amplifier operates over dynamic range of five orders of magnitude [PDF]

, 1967
Special purpose electrometer amplifier is capable of operation over a dynamic range of five orders of magnitude.
Katz, N.
core   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source