Results 61 to 70 of about 130,054 (362)
The Hipparcos Transit Data: What, why and how? [PDF]
, 1999 The Hipparcos Transit Data are a collection of partially reduced, fully calibrated observations of (mostly) double and multiple stars obtained with the ESA Hipparcos astrometry satellite.
Lindegren, L., Quist, C. F.
core +2 more sources
An Inkjet‐Printed Platinum‐Based Temperature Sensing Element on Polyimide Substrates
Advanced Engineering Materials, EarlyView.An inkjet‐printed, meander‐structured, nanoparticle platinum‐based resistive temperature sensors on polyimide substrates are demonstrated as proof‐of‐concept. Optimized sintering at 250°C enables stable conductive structures. The Pt100‐ and Pt1000‐type sensors exhibit linear resistance–temperature characteristics with stable TCR in the 20°C–80°C range,
Shawon Alam +6 more
wiley +1 more source
Analisa Kinerja Sinusoidal PWM Inverter untuk Pengaturan Kecepatan Motor Induksi Tiga Fasa
Teknika, 2016 PWM (pengaturan lebar pulsa) merupakan salah satu teknik yang baik untuk digunakan dalam sistem kendali (control system) saat ini. Pengaturan lebar modulasi dipergunakan di berbagai bidang yang sangat luas, salah satu diantaranya adalah pengaturan ...
Heri Haryanto, Vicky Immanuel
doaj +1 more source
Comparative Study between Duty Cycle Modulation (DCM) and Sigma-Delta (Ʃ∆) Modulation Based on Analog to Digital Conversion [PDF]
Journal of Electrical and Electronics Engineering, 2023 This paper presents a virtual comparative study between the Analog to Digital Conversion (ADC) based Duty Cycle Modulation (DCM) and Sigma-Delta (Ʃ∆) modulation.
OTAM Steve Ulriche, MOFFO Lonla Bertrand
doaj
Nonlinearity Mitigation Based on Modulus Pruned Look-Up Table for Multi-Bit Delta-Sigma 32-CAP Modulation in Underwater Visible Light Communication System [PDF]
, 2021 Wenqing Niu +5 more
openalex +1 more source
Advanced Engineering Materials, EarlyView.In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart +3 more
wiley +1 more source
Delta-Sigma Modulator based multiplier
IEICE Electronics Express, 2009 In this paper, a new technique is proposed for multiplication of two sampled low frequency analog signals and the result is in digital form. Out of the two signals, one signal is fed to the input of typical second order, ΔΣ Modulator (DSM). The operating period of the DSM circuit is varied directly in proportion to the absolute amplitude of the second ...
K. Diwakar +3 more
openaire +2 more sources
An Optimal Family of Exponentially Accurate One-Bit Sigma-Delta Quantization Schemes [PDF]
, 2010 Sigma-Delta modulation is a popular method for analog-to-digital conversion of bandlimited signals that employs coarse quantization coupled with oversampling.
Deift, Percy +2 more
core
Advanced Engineering Materials, EarlyView.The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza +3 more
wiley +1 more source
Delta-Sigma Modulation for Next Generation Fronthaul Interface
Journal of Lightwave Technology, 2019 A new function split option for the next generation fronthaul interface (NGFI) is demonstrated based on all-digital RF transmitter using bandpass delta-sigma modulation.
Jing Wang +3 more
semanticscholar +1 more source