Results 11 to 20 of about 308,722 (258)

On the Accuracy of Transmission Loss Measurements [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1960
One of the authors [M. Heckl and K. Seifert, Acustica 8, 212–220 (1958)] recently has described the performance of a wall between two, one-dimensional rooms (tubes). It was found that the TL was influenced by the relative lengths of the two rooms and by the sound absorption of the rooms.
Manfred Heckl, Bill G. Watters
openaire   +1 more source

Accuracy of propagation modeling on transmission lines [PDF]

open access: yes1999 IEEE International Symposium on Electromagnetic Compatability. Symposium Record (Cat. No.99CH36261), 1999
This paper investigates the accuracy of the nonuniform multiconductor transmission lines (NMTL) equations when they are used to reproduce voltages and currents on structures made of nonparallel conductors. A commercial software based on the NEC2 kernel is used as a virtual measurement tool to validate the outcome of the NMTL model.
GRIVET TALOCIA, STEFANO   +1 more
openaire   +1 more source

Research on Performance Test System of Space Harmonic Reducer in High Vacuum and Low Temperature Environment

open access: yesMachines, 2020
The harmonic reducer, with its advantages of high precision, low noise, light weight, and high speed ratio, has been widely used in aerospace solar wing deployment mechanisms, antenna pointing mechanisms, robot joints, and other precision transmission ...
Jing Wang   +3 more
doaj   +1 more source

Transmission line cochlear models: Improved accuracy and efficiency [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2014
This paper presents an efficient method to compute the numerical solutions of transmission-line (TL) cochlear models, and its application on the model of Verhulst et al. The stability region of the model is extended by adopting a variable step numerical method to solve the system of ordinary differential equations that describes it, and by adopting an ...
Verhulst, Sarah   +3 more
openaire   +6 more sources

Application of hybrid encryption algorithm in physical layer software control

open access: yesResults in Physics, 2023
In order to address the risk of information leakage in physical layer software, the author proposes the application of hybrid encryption algorithms in physical layer software control.
Jie Zhang
doaj   +1 more source

Accuracy of Local Polarization Measurements by Scanning Transmission Electron Microscopy

open access: yesMicroscopy and Microanalysis, 2022
Abstract Accurately determining local polarization at atomic resolution can unveil the mechanisms by which static and dynamical behaviors of the polarization occur, including domain wall motion, defect interaction, and switching mechanisms, advancing us toward the better control of polarized states in materials.
Sebastian Calderon   +2 more
openaire   +2 more sources

Research on Part Tolerances for RV-40E Reducer Based on Virtual Prototype Technology

open access: yesApplied Sciences
The RV-40E reducer is the representative model of the a typical RV reducer, where transmission accuracy and manufacturing cost are two important optimization indicators, while transmission accuracy depends on both the selection of accuracy levels for ...
Shousong Jin   +4 more
doaj   +1 more source

Return error simulation analysis and experimental study for RV reducer with ADAMS

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
Rotary vector (RV) reducers are a common type of transmission device, and their transmission accuracy is crucial for many applications. Among them, the return difference (in other words, the reverse clearance of the reducer is called return error) is an ...
Huiliang WANG   +4 more
doaj   +1 more source

Accuracy of the electromagnetic transient in overhead transmission lines

open access: yesElectronics Letters, 1984
An examination is made of past, present and possible future results in evaluating the modal form of the transmission-line transient. An exact analysis of the problem has been formulated and a comparison of its accurate evaluation is made with other workers' available results.
G. Bridges, O. Aboul-Atta
openaire   +1 more source

Accuracy of Near-infrared Transmission Spectroscopy for Determining Rice Constituent Contents and Improvement in the Accuracy [PDF]

open access: yes2002 Chicago, IL July 28-31, 2002, 2002
The accuracy in determination of rice constituent contents using a commercial nearinfrared transmission (NIRT) instrument was validated. And the accuracy of measurements using this instrument was improved by modifying light filters and calibration equations used in the instrument.
Kawamura, Shuso   +2 more
openaire   +2 more sources

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