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Environmental Factors IV. Vibration
1965During his work a man will frequently be subjected to vibration from various sources. He may be riding in the cab of a railway locomotive or a road vehicle; he may be operating a pneumatic drill or he may receive vibration from a machine tool. Vibration will be transmitted to him through those parts of his body in contact with the source of vibration ...
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Environmental vibration criterion for scientific laboratories
The Journal of the Acoustical Society of America, 1976The degradation of scientific instrument performance due to excessive environmental vibration is a common problem, and one that requires recognition during the early stages of any new scientific facility. Nearby transportation systems, building mechanical equipment, and pedestrian activity at above-grade locations are usually the vibration sources of ...
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Optimization of a piezoelectric energy harvester for environmental broadband vibrations
2008 15th IEEE International Conference on Electronics, Circuits and Systems, 2008Energy scavenging systems (ESS) can be important, theoretically endless, sources of energy. In the future, they could recharge or even replace batteries. In this paper a design methodology is presented in order to maximize the harvested energy and the transduction efficiency of a cantilever-like piezoelectric scavenger.
Dario Paci +3 more
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Environmental Influences on SWT Vibrations and Oscillations
2018Falling energy prices and attractive governmental funding as well as the desire for energy autonomy of private households and enterprises are promoting the expansion of renewable energy generation units. Alongside photovoltaic systems, small wind turbines (SWT) represent one of the few feasible ways to generate electricity in areas with a high building
M. Peppoloni +2 more
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Environmental Vibration Testing of Space Payloads
Aerospace Testing International, 2019Engineers ensure payloads such as satellites will not malfunction with extensive, but carefully limited, vibration testing
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Physical Chemistry Chemical Physics, 2011
Carotenoids are employed in light-harvesting complexes of dinoflagellates with the two-fold aim to extend the spectral range of the antenna and to protect it from radiation damage. We have studied the effect of the environment on the vibrational properties of the carotenoid peridinin in different solvents by means of vibrational spectroscopies and QM ...
Bovi, D. +6 more
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Carotenoids are employed in light-harvesting complexes of dinoflagellates with the two-fold aim to extend the spectral range of the antenna and to protect it from radiation damage. We have studied the effect of the environment on the vibrational properties of the carotenoid peridinin in different solvents by means of vibrational spectroscopies and QM ...
Bovi, D. +6 more
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Attenuation of environmental vibrations using geosynthetics
Revue Française de GéotechniqueBeyond the usual applications of drainage geocomposites, their environmental impact was considered through benefits in terms of attenuation of vibration and structure-borne noise levels due to vibration-damping geocomposite placed on or near a standard 4-floors building with an underground car park located 20 m from a railway line. The problem of train
Alain Hérault +2 more
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Response of Cracks to Construction Vibrations and Environmental Effects
Geotechnical Engineering for Transportation Projects, 2004This paper summarizes micro-inch response of cosmetic cracks in a typical slab-on-grade ranch style house to both construction equipment-induced vibration and environmental (weather) effects. This structure was instrumented, and its response studied as part of the development of an Autonomous Crack Measurement (ACM) system.
Charles H. Dowding, Mickey L. Snider
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A gun barrel vibration absorber for weapon platforms subject to environmental vibrations
39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Exhibit, 1998This paper presents the experimental results of the first known application of a muzzle end vibration absorber to reduce dynamic flexure of a gun system subject to environmentally induced vibration. Such flexure is becoming an increasingly important design consideration as increased launch velocity requirements and emphasis on light weight systems are ...
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Environmental vibration problems during construction
2005Construction operations with involvement of impact or vibratory sources produce environmental vibration problems for adjacent and remote structures. High vibrations and unacceptable dynamic settlements could seriously disturb sensitive devices and people and even be the cause of structural damage.
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