Results 131 to 140 of about 579,501 (376)

Novel active function blocks and their applications in frequency filters and quadrature oscillators [PDF]

, 2010
Kmitočtové filtry a sinusoidní oscilátory jsou lineární elektronické obvody, které jsou používány v široké oblasti elektroniky a jsou základními stavebními bloky v analogovém zpracování signálu.
Herencsár, Norbert
core  

Obesity subtypes and longitudinal trajectories of function over 7‐years of follow‐up: data from the Multicenter Osteoarthritis Study

Arthritis Care &Research, Accepted Article.
Background Obesity, defined by BMI ≥30kg/m2, is a risk factor for functional limitations in people with knee osteoarthritis (OA). However, function varies among such individuals. Our objective was to evaluate the implications of obesity subtypes on longitudinal patterns of physical functioning in people with or at risk for knee OA.
Kristine Godziuk, Sarah Tilley, Michael LaValley, Michael C. Nevitt, Cora E. Lewis, James C. Torner, Tuhina Neogi   +6 more
wiley   +1 more source

In-flight calibration and verification of the Planck-LFI instrument

, 2013
In this paper we discuss the Planck-LFI in-flight calibration campaign. After a brief overview of the ground test campaigns, we describe in detail the calibration and performance verification (CPV) phase, carried out in space during and just after the ...
Baker, Michelle, Battaglia, Paola, Bersanelli, Marco, Butler, Reginald Christophe, Casale, Mauro, Charra, Maryse, Cuevas, Leticia Perez, Cuttaia, Francesco, Davis, Richard, Foley, Steve, Frailis, Marco, Franceschet, Cristian, Franceschi, Enrico, Galeotta, Samuele, Gregorio, Anna, Krassenburg, Mike, Laureijs, René, Leonardi, Rodrigo, Lowe, Steve, Maciaszek, Thierry, Mandolesi, Nazzareno, Maris, Michele, Meinhold, Peter, Melot, Frederick, Mendes, Luis, Mennella, Aniello, Morgante, Gianluca, Pearson, Dave, Rihet, Patrick, Sandri, Maura, Stassi, Patrick, Stringhetti, Luca, Tauber, Jan, Tavagnacco, Daniele, Terenzi, Luca, Texier, Damien, Tomasi, Maurizio, Villa, Fabrizio, Watson, Christopher J., Wilkinson, Althea, Wilson, Philip, Zacchei, Andrea, Zonca, Andrea   +42 more
core   +3 more sources

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

The Implementation of a High-Performance Glucose Biosensor Based on Differential EGFET and Chopper Amplifier

IEEE Journal of the Electron Devices Society
In this paper, a new architecture for glucose biosensors is proposed, which adopts a Chopper amplifier instead of a conventional instrumentation amplifier (INA) and differential extended gate field effect transistor (EGFET) as the input stage.
Po-Yu Kuo, Chi-Han Liao, Jung-Chuan Chou, Chih-Hsien Lai, Yu-Hsun Nien, Po-Hui Yang, Ming-Tai Hsu, Cheng-Chun Lien, Wei-Shun Chen, Jyun-Ming Huang, Yu-Wei Chen   +10 more
doaj   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

Advanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer, Eric R. Hoglund, Anton V. Ievlev, Patrick E. Hopkins   +3 more
wiley   +1 more source

Development of a prototype for submarine communications in shallow waters [PDF]

, 2016
The Telecommunications Marine Laboratory (TML) of the University of Cádiz takes part in a research project to study the intertidal sediments of the Bay of Cádiz. The collection of samples from the seabed and the transmission of data to the surface are
Bohórquez Ferrando, Julio, Corzo Rodríguez, Alfonso, Figueroa Recio, Manuel, Gómez Castillo, Leopoldo, Mariscal Rico, Luis A., Papaspyrou, Sokratis, Rychkov, Eugene   +6 more
core  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Multifunctional Crushing and Piezoresistive Self‐Sensing in Conductive Epoxy/CNT‐Coated Polyetherimide TPMS Lattices

Advanced Engineering Materials, EarlyView.
This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay, J. Schneider, P. Harrison, S. Kumar   +3 more
wiley   +1 more source