Results 21 to 30 of about 101,229 (247)

The Validity and Inter-Rater Reliability of a Video-Based Posture-Matching Tool to Estimate Cumulative Loads on the Lower Back [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2022
Background: Low back pain (LBP) is known as one of the most common work-related musculoskeletal disorders. Spinal cumulative loads (CLs) during manual material handling (MMH) tasks are the main risk factors for LBP.
Saeed Ghaneh-Ezabadi   +4 more
doaj   +1 more source

Calculation of the Equivalent Conicity Function of the Railway Wheelset Tread Profile at the Delta R Function with a Negative

open access: yesCommunications, 2004
The rail-wheel interface is fundamental to explain the dynamic running behaviour of a railway vehicle. It must therefore be understood and among the parameters by which it is characterised, the one called "equivalent conicity" plays an essential role ...
Juraj Gerlici   +2 more
doaj   +1 more source

Two-Dimensional Symmetric Box Delivery Motion Prediction and Validation: Subtask-Based Optimization Method

open access: yesApplied Sciences, 2020
Box delivery is a complicated manual material handling task which needs to consider the box weight, delivering speed, stability, and location. This paper presents a subtask-based inverse dynamic optimization formulation for determining the two ...
Yujiang Xiang   +3 more
doaj   +1 more source

Internal Combustion Engines at the Turn of Millennia

open access: yesCommunications, 1999
Trends in the development of piston internal combustion engines in a view of tightened ecological regulations (exhaust and noise emissions, fuel consumption) have been presented in this paper.
Jerzy Merkisz, Vladimir Hlavna
doaj   +1 more source

Evaluation of Micro-focused Ultrasound for Lifting and Tightening the Face [PDF]

open access: yesArchives of Aesthetic Plastic Surgery, 2015
Background Micro-focused ultrasound (MFU) has developed as an effective, noninvasive, skin-tightening method. However, certain factors have limited its replacement of invasive surgical procedures, including a relative lack of efficacy, persistence, and ...
In Ho Lee   +3 more
doaj   +1 more source

Estimation of the efficiency of road construction machines in the design [PDF]

open access: yesE3S Web of Conferences
The reasons for the decrease in the efficiency of road construction machines are fluctuations in speed and load, deviations of which from the optimal value in terms of efficiency and causes an increase in energy losses and a decrease in efficiency.
Barbashov Nikolay   +2 more
doaj   +1 more source

Effects of Gender and Recurrent Low Back Pain on Lifting Style

open access: yesCentral European Journal of Sport Sciences and Medicine, 2015
Objective: The purpose of this study was to examine the influence of gender and existing, recurrent low back pain (rLBP) on lower extremity and trunk mechanics, as well as neuromuscular control, during a lift task.
Ram Haddas, Philip Sizer, James Yang
doaj   +1 more source

Granular jamming based robotic gripper for heavy objects; pp. 421–428 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2019
Moving heavy objects with overhead cranes requires the operator to fasten the object to a hook with ropes or chains. This is a time-consuming process, which could be avoided by using universal grippers that can lift objects of any shape.
Jesse Miettinen   +4 more
doaj   +1 more source

Nasal lifting [PDF]

open access: yesAesthetic Surgery Journal, 2005
Patients with gland hyperplasia as well as thickening and redundancy of nasal skin who receive treatment that addresses only the support structures generally suffer from lack of definition of the nasal tip. We report on a case in which this problem was treated by redefinition of the nasal dorsum and tip through resection of the redundant skin.
Ronaldo, Pontes   +3 more
openaire   +2 more sources

Mechanical simulation and installation position optimisation of a lifting cylinder of a scissors aerial work platform

open access: yesThe Journal of Engineering, 2018
The force of a lifting cylinder is the main factor of the alternating stress of scissors arms in a scissors aerial work platform, which seriously affects the fatigue life of structures.
Shanghong He   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy