Results 81 to 90 of about 372,868 (297)

Electrical resonance in the θ frequency range in olfactory amygdala neurons. [PDF]

PLoS ONE, 2014
The cortical amygdala receives direct olfactory inputs and is thought to participate in processing and learning of biologically relevant olfactory cues. As for other brain structures implicated in learning, the principal neurons of the anterior cortical ...
Jorge Vera, Maurizio Pezzoli, Ulises Pereira, Juan Bacigalupo, Magdalena Sanhueza   +4 more
doaj   +1 more source

Resonant switch model of twin peak HF QPOs applied to the atoll source 4U 1636-53

, 2012
We present a Resonant Switch (RS) model of twin peak high-frequency quasi-periodic oscillations (HF QPOs), assuming switch of twin oscillations at a resonant point, where frequencies of the upper and lower oscillations $\nu_U$ and $\nu_L$ become to be ...
Kotrlova, Andrea, Stuchlik, Zdenek, Torok, Gabriel   +2 more
core   +1 more source

Screening for lung cancer: A systematic review of overdiagnosis and its implications

Molecular Oncology, EarlyView.
Low‐dose computed tomography (CT) screening for lung cancer may increase overdiagnosis compared to no screening, though the risk is likely low versus chest X‐ray. Our review of 8 trials (84 660 participants) shows added costs. Further research with strict adherence to modern nodule management strategies may help determine the extent to which ...
Fiorella Karina Fernández‐Sáenz, Laura de la Torre‐Perez, David R Baldwin, Carlijn van der Aalst, Mangesh Thorat, David Ritchie, Andre L Carvalho, Carolina Espina, Ivan Solà, Carlos Canelo‐Aybar, Moira Magdalena Pissinis, Pablo Alonso‐Coello, Ana Carolina Pereira Nunes Pinto   +12 more
wiley   +1 more source

Bias-Flip Technique for Frequency Tuning of Piezo-Electric Energy Harvesting Devices

Journal of Low Power Electronics and Applications, 2013
Devices that harvest electrical energy from mechanical vibrations have the problem that the frequency of the source vibration is often not matched to the resonant frequency of the energy harvesting device.
Jianguo Ma, Dennis Buss, Jeffrey Lang, Yogesh Ramadass, Jianying Zhao   +4 more
doaj   +1 more source

A Comprehensive Overview in Control Algorithms for High Switching-Frequency LLC Resonant Converter

Energies, 2020
An LLC resonant converter has been widely used in various industrial applications because of its high cost-effectiveness, high power conversion efficiency, simple design methodology, and simple control algorithms using a pulse frequency modulation (PFM).
Hwa-Pyeong Park, Mina Kim, Jee-Hoon Jung
doaj   +1 more source

Efficient 525nm laser generation in single or double resonant cavity

, 2017
This paper reports the results of a study into highly efficient sum frequency generation from 792 and 1556 nm wavelength light to 525 nm wavelength light using either a single or double resonant ring cavity based on a periodically poled potassium titanyl
Han, Zhenhai, Li, Yinhai, Liu, Shikai, Liu, Shilong, Shi, Baosen, Zhou, Zhiyuan   +5 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Capacitive micromachined ultrasonic transducer for ultra-low pressure measurement: Theoretical study

AIP Advances, 2015
Ultra-low pressure measurement is necessary in many areas, such as high-vacuum environment monitoring, process control and biomedical applications. This paper presents a novel approach for ultra-low pressure measurement where capacitive micromachined ...
Zhikang Li, Libo Zhao, Zhuangde Jiang, Sina Akhbari, Jianjun Ding, Yihe Zhao, Yulong Zhao, Liwei Lin   +7 more
doaj   +1 more source

Novel Optimization Approach in Ultrasonic Machining: Unilateral Compensation for Resonant Vibration in Primary Side

IEEE Access, 2019
Resonant frequency and impedance matching have great significance for the vibration performance and online monitoring of the rotary ultrasonic machining. Network compensation is a typical solution to match the resonant frequency and the impedance between
Jianguo Zhang, Zhili Long, Can Wang, Feng Ren, Yangming Li   +4 more
doaj   +1 more source

Detection of mechanical resonance frequencies for interior permanent magnet synchronous motor servo drives based on wavelet multiresolution filter

The Journal of Engineering, 2020
To realise the resonant characteristics of motor drive system, a wavelet multiresolution filter (WMF)-based scheme is proposed in this study to perform the detection of the mechanical resonant frequencies for interior permanent magnet synchronous motor ...
Faa-Jeng Lin, Cheng-I Chen, Jyun-Ru Lin
doaj   +1 more source