Results 81 to 90 of about 1,355,306 (336)

Ultra-Low Noise Microwave Extraction from Fiber-Based Optical Frequency Comb

, 2009
In this letter, we report on all-optical fiber approach to the generation of ultra-low noise microwave signals. We make use of two erbium fiber mode-locked lasers phase locked to a common ultra-stable laser source to generate an 11.55 GHz signal with an ...
A. N. Luiten, Bartels, G. Santarelli, Grosche, Hartnett, Ivanov, Ivanov, J. Millo, Jiang, Kim, Kéfélian, Lipphardt, Lopez, Ludlow, M. Lours, Ma, McFerran, Millo, Millo, P. Y. Bourgeois, R. Boudot, Webster, Weyers, Y. Kersalé, Y. Le Coq   +24 more
core   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Design of Low Noise Detectors [PDF]

, 2009
This paper describes methods for minimizing common mode noise in electronic detector systems. It discusses grounding issues, proper design of the signal path and experiment wide methods for low noise design.
Johnson, Marvin
core   +1 more source

Fundamental study of common mode small-signal frequency oscillations in power systems

International Journal of Electrical Power & Energy Systems, 2019
Abstract This paper performs a fundamental study of very low frequency oscillations characterized by a common mode shape at all system busses (same magnitude and phase). Also known as global or frequency control oscillation mode (below 0.1 Hz), it determines frequency response performance according to NERC requirements. When poorly damped, it poses a
Ruichao Xie, Innocent Kamwa, Dmitry Rimorov, Ali Moeini   +3 more
openaire   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

A D-Band CMOS Linearity-Enhanced Low-Noise Amplifier Using Multiple-Gated Transistors Technique

IEEE Access
In this paper, a D-band low-noise amplifier (LNA) using the linearity-enhanced technique in 40-nm CMOS process is presented. In this D-band LNA, multiple-gated transistors are used to improve the third-order intercept point (IIP3) while maintaining ...
Jingbo Zhang, Munkyo Seo
doaj   +1 more source

Bearing Fault Diagnosis based on Feature Visualization and Depth Adaptive Network

Jixie chuandong, 2022
Aiming at the problem that feature extraction in bearing fault diagnosis needs to rely heavily on manual experience and expert knowledge，a bearing fault diagnosis method based on Gramian angle field（GAF） transformation and adaptive depth network is ...
Hong Jiang, Yu Feng, Rong Fu
doaj  

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

A Fault Diagnosis Scheme for Rolling Bearing Based on Particle Swarm Optimization in Variational Mode Decomposition

Shock and Vibration, 2016
Variational mode decomposition (VMD) is a new method of signal adaptive decomposition. In the VMD framework, the vibration signal is decomposed into multiple mode components by Wiener filtering in Fourier domain, and the center frequency of each mode ...
Cancan Yi, Yong Lv, Zhang Dang
doaj   +1 more source

Low current linearization of magnetic amplifier for dc transducer [PDF]

, 1981
A magnetic amplifier having two saturable reactor cores with a separate excitation winding on each connected in series opposition, a common control winding, and a common output winding, is adapted for use as a low level signal transducer.
Nagano, S.
core   +1 more source