Electromagnetic prompt response in an elastic wave cavity
A rapid, or prompt response, of an electromagnetic nature, is found in an elastic wave scattering experiment. The experiment is performed with torsional elastic waves in a quasi-one-dimensional cavity with one port, formed by a notch grooved at a certain
Báez, G. +4 more
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Development of adaptive seismic isolators for ultimate seismic protection of civil structures [PDF]
Base isolation is the most popular seismic protection technique for civil engineering structures. However, research has revealed that the traditional base isolation system due to its passive nature is vulnerable to two kinds of earthquakes, i.e. the near-
Li, J, Li, W, Li, Y, Samali, B
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Base isolation: Fresh insight [PDF]
The objective of the research is a further development of the engineering concept of seismic isolation. Neglecting the transient stage of seismic loading results in a widespread misjudgement: The force of resistance associated with velocity is mostly conceived as a source of damping vibrations, though it is an active force at the same time, during an ...
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Sensor failure detection for jet engines using analytical redundance [PDF]
Analytical redundant sensor failure detection, isolation and accommodation techniques for gas turbine engines are surveyed. Both the theoretical technology base and demonstrated concepts are discussed.
Merrill, W. C.
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Vibration isolation with high thermal conductance for a cryogen-free dilution refrigerator
We present the design and implementation of a mechanical low-pass filter vibration isolation used to reduce the vibrational noise in a cryogen-free dilution refrigerator operated at 10 mK, intended for scanning probe techniques.
Bouwmeester, Dirk +8 more
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Nonintrusive inertial vibration isolation technology for microgravity space experiments [PDF]
The dynamic acceleration environment observed on Space Shuttle flights to date and predicted for the Space Station has complicated the analysis of prior microgravity experiments and prompted concern for the viability of proposed space experiments ...
Brown, Gerald V., Grodsinsky, Carlos M.
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Base isolated residential buildings
Το ερευνητικό έργο του Solarino περιλαμβάνει δύο ανακατασκευασμένες εργατικές κατοικίες οπλισμένου σκυροδέματος στην Ανατολική Σικελία. Η ανακατασκευή πραγματοποιήθηκε με την χρήση υβριδικού συστήματος σεισμικής μόνωσης, το οποίο περιλαμβάνει ελαστομερείς μονωτήρες υψηλής απόσβεσης και μονωτήρες ολίσθησης χαμηλής τριβής.
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An autonomous fault detection, isolation, and recovery system for a 20-kHz electric power distribution test bed [PDF]
Future space explorations will require long term human presence in space. Space environments that provide working and living quarters for manned missions are becoming increasingly larger and more sophisticated.
Quinn, Todd M., Walters, Jerry L.
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Base Pounding Model and Response Analysis of Base-Isolated Structures under Earthquake Excitation
In order to study the base pounding effects of base-isolated structure under earthquake excitations, a base pounding theoretical model with a linear spring-gap element is proposed.
Chengqing Liu +4 more
doaj +1 more source
Silicon photonics broadband modulation-based isolator
We discuss an optical isolator design based on tandem phase modulators in a long interferometer. It provides low-loss, broadband isolation in a photonic integrated circuit without requiring special materials or fabrication steps. It was demonstrated in silicon photonics.
C R, Doerr, L, Chen, D, Vermeulen
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