This article offers a review of the current thinking on the way the health of workers is affected by vibrations generated on the upper extremities. The most common injuries caused by vibration to the hand and arm area are identified. Methods currently used to evaluate the effects of vibration ...
Effects of vibration and shock on the performance of gas-bearing space-power Brayton cycle turbomachinery. Part 4: Suppression of rotor-bearing system vibrations through flexible bearing support damping A bearing damper, operating on the support flexure of a pivoted pad in a tilting-pad type gas-...
chemicals are used and produced in ways that lead to the minimization of significant adverse effects on human health and the environment. daccess-ods.un.org 阿拉伯各国支持化学品管理方针,将其视为促进努力和协调公共政策以实现 《约翰内斯堡计划》目标的机制,该《计划》将 2020 年作为目标日期,届时应 确...
Medium signal of N‒H bending vibrations centered at 1549 cm−1 confirms the presence of primary amine in chitosan as well as residual amide of peptide in algae extract. The advent of quite a strong absorption peak at 1336 cm−1 can be assigned to C‒N stretching of amino and/or ...
Human activities like walking, running and dancing - and operating machines - can introduce floor vibrations due to resonance. Low-Frequency Vibrations Effects on Building Constructions Effects of low-frequency vibrations on building constructions. ...
However, if the rubber clip is not properly attached to the laces, interfering vibrations of the sensor at heel strike can affect the signal. Despite our data quality checking procedure, we may have missed some noisy signals. Considering the large amount of data collected (more than 600 files...
quests. Ticks don't jump, so they have to quest very near the area where animals or humans travel. They can detect the presence of a host in a variety of ways. Certain chemicals, such as exhaled carbon dioxide, body heat, and vibrations are clues that tell a tick that a host is ...
Random vibrations were superimposed with shoc... H Dupuis,E Hartung,M Haverkamp - 《International Archives of Occupational & Environmental Health》 被引量: 38发表: 1991年 EFFECT OF PHASE ON HUMAN RESPONSES TO VERTICAL WHOLE-BODY VIBRATION AND SHOCK—ANALYTICAL INVESTIGATION The effect of the "...
Vibrations cause the feeling of discomfort, reduce working ability, and their lengthy action can affect health [1], [2]. Drivers of construction machinery, farm machinery, heavy-duty vehicles and buses fall into a particularly risky group [3]. Investigations [3], [4], [5] have shown that...
Three additional conditions ((a) Exclusion of small peaks, (b) Resolution criteria, and (c) Exclusion of peaks which are vibrations on increasing trend) are used in peak detection to enhance robustness. After all the peaks are found, breakpoints can be defined. Supplementary Fig. 4 visualizes...