Results 61 to 70 of about 14,778 (202)

Hybrid Filter Compensation Device Applied in Mine Hoist Power Distribution System

open access: yesKongzhi Yu Xinxi Jishu, 2017
According to the load characteristics of mine distribution system, it tested the pollutions of non-active power and harmonics produced by mine upgrade machine system with AC frequency conversion speed control.
LI Zhong   +5 more
doaj  

UV curing of polysilazane‐based coatings with metallic fillers for corrosion protection applications

open access: yesInternational Journal of Applied Ceramic Technology, Volume 22, Issue 6, November/December 2025.
In this study, the feasibility of UV curing a highly filled silazane‐based coating with metallic fillers is investigated. Despite the high amount of UV reflecting fillers the entire coating is cured via thiol‐ene “click” reactions. The resulting properties are comparable to those of thermally cured coatings.
Jan‐Felix Wendel   +4 more
wiley   +1 more source

An Efficiency Evaluation of Different Hoisting Devices to Complete Three Frequent Patient Transfers [PDF]

open access: yes, 2019
The aim of this study was to compare the efficiency and staff preferences of three different hoisting devices when completing lying to sitting and sitting-to-sitting transfers. The study explored time, task steps, physical environments and staff preferences.
James Curran, Mike Fray
openaire   +1 more source

Orbiter processing facility service platform failure and redesign [PDF]

open access: yes
In a high bay of the Orbiter Processing Facility (OPF) at the Kennedy Space Center, technicians were preparing the space shuttle orbiter Discovery for rollout to the Vehicle Assembly Building (VAB).
Harris, Jesse L.
core   +1 more source

The impact of hoist sling materials on interface pressure whilst sitting in healthy volunteers and wheelchair users : a comparative study [PDF]

open access: yes, 2018
Aim of the study To evaluate the effect of three sling fabrics on gluteal interface pressure whilst sitting in a population of wheelchair users and to compare these to data previously collected in a pilot study with a healthy population.
Aissaoui   +29 more
core   +1 more source

Experimental Verification of an Automatic Leveling Approach for PPVC Module Lifting Frames Using a Scaled Testbed

open access: yesIEEE Access
Prefinished prefabricated volumetric construction is an off-site construction method in which modules, including finishing materials, equipment, and furniture, are prefabricated and assembled on-site using cranes and lifting frames to complete the ...
Hyojae Kang   +4 more
doaj   +1 more source

Multi-Source Fusion CNN-RF Framework for Intelligent Fault Diagnosis of Head Sheave Devices in Mining Hoists

open access: yesMachines
Accurate fault diagnosis of mining hoisting head sheave systems is critical for ensuring operational safety in harsh underground environments. This study proposes a multi-source fault diagnosis framework that fuses vibration and acoustic information ...
Chi Ma   +5 more
doaj   +1 more source

Enhanced Rescue Lift Capability [PDF]

open access: yes, 2007
The evolving and ever-increasing demands of emergency response and disaster relief support provided by rotorcraft dictate, among other things, the development of enhanced rescue lift capability for these platforms.
Young, Larry A.
core   +1 more source

Novel malaria control by strategic net-hoisting with S/O channel/grip devices

open access: yesMalariaWorld journal, 2011
Background. Hoisting of netting screens with battens on windows/vents suffers from unsightly gathering of dust and allergens, which may provoke respiratory diseases and therefore lack popularity as a mosquito/malaria control tool. Furthermore, installing them in high-rise buildings can be cumbersome and risky. An S/O channel/grip device was, therefore,
openaire   +2 more sources

Design And Development Of Automatic Leveling And Equalizing Hoist Device For Spacecraft

open access: yes, 2012
To solve the quick and accurate level-adjusting problem in the process of spacecraft precise mating, automatic leveling and equalizing hoist device for spacecraft is developed. Based on lifting point adjustment by utilizing XY-workbench, the leveling and equalizing controller by a self-adaptive control algorithm is proposed.
Hao, Fu   +3 more
openaire   +1 more source

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