Results 11 to 20 of about 17,917 (280)

Study on vibration of the saw cylinder and its critical speed [PDF]

open access: yesE3S Web of Conferences, 2023
The force impact of the 130 saw cylinder of gins 4DP-130 and 5DP-130 was studied. It was determined that due to the significant weight of the saw cylinder, when it is rotated at 730 rpm, its radial runout increases, leading to shaft deflection and wear ...
Sulaymonov Rustam, Yuldashev Amirjon
doaj   +1 more source

Dirac gratings

open access: yesOptics Express, 2023
We propose the concept of a Dirac grating, where periodic permittivity perturbations approach a train of Dirac functions. We show that Dirac gratings can yield identical spectral characteristics for higher-order gratings compared to first-order gratings of the same length. Using an inverse Fourier transform technique, we design different types of Dirac
Saeidi, Shayan   +3 more
openaire   +2 more sources

Development of the saw cylinder for gins and linters with use of new elements of the design [PDF]

open access: yesE3S Web of Conferences, 2021
Article issues of decrease in amplitude of dynamic fluctuations of saw cylinders of gins and linter for the purpose of reduction of a deviation of saws from the plane of rotation and contact with saws of grates are consecrated.
Sultonov Azamat   +4 more
doaj   +1 more source

Wind-driven roof turbines: a novel way to improve ventilation for TB infection control in health facilities. [PDF]

open access: yesPLoS ONE, 2012
OBJECTIVE: Tuberculosis transmission in healthcare facilities contributes significantly to the TB epidemic, particularly in high HIV settings. Although improving ventilation may reduce transmission, there is a lack of evidence to support low-cost ...
Helen Cox   +6 more
doaj   +1 more source

Polarization independent Bragg gratings using tilted subwavelength grating waveguide Bragg gratings

open access: yesOptics Express, 2023
We propose and experimentally demonstrate a polarization independent subwavelength grating (SWG) waveguide Bragg grating (WBG) by using an SWG waveguide with tilted segments. By optimizing the tilting angle and other geometry parameters, such as the width and the length of the loading segments used to create the BG, we can obtain a zero birefringence ...
Hao Sun, Lawrence R. Chen
openaire   +2 more sources

RTMO: Towards High-Performance One-Stage Real-Time Multi-Person Pose Estimation [PDF]

open access: yesComputer Vision and Pattern Recognition, 2023
Real-time multi-person pose estimation presents signif-icant challenges in balancing speed and precision. While two-stage top-down methods slow down as the number of people in the image increases, existing one-stage meth-ods often fail to simultaneously ...
Peng Lu   +5 more
semanticscholar   +1 more source

Electron Multi-Beams (Electron Grids, Electron Lattices and Electron Grates): New Elements for Accelerators [PDF]

open access: yes, 2018
Since the initial proposal in 1990s, the method of electron lenses has been successfully developed and employed at the high energy particle colliders, like Tevatron and RHIC.
V. Shiltsev
semanticscholar   +1 more source

Experimental hydraulic parameters of drainage grate inlets with a horizontal outflow in the broad-crested weir mode

open access: yesWater Science and Technology, 2023
The accurate assessment of discharge coefficients for different types of water inlets is crucial for minimizing modelling errors in drainage systems thus reducing the risk of flooding in adjacent areas.
Volodymyr Zhuk   +6 more
doaj   +1 more source

HL-Net: Heterophily Learning Network for Scene Graph Generation [PDF]

open access: yesComputer Vision and Pattern Recognition, 2022
Scene graph generation (SGG) aims to detect objects and predict their pairwise relationships within an image. Current SGG methods typically utilize graph neural net-works (GNNs) to acquire context information between ob-jects/relationships. Despite their
Xin Lin   +4 more
semanticscholar   +1 more source

Surface plastic deformation method for increasing the wear resistance of fire grates in fiber separating machines [PDF]

open access: yesEPJ Web of Conferences
The article covers materials on the influence of the wear resistance of cast iron grates of fiber separating machines on the technological clearance between them in the mentioned above grate.
Shin Illarion   +3 more
doaj   +1 more source

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