Results 291 to 300 of about 288,428 (355)
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Structure and Vibrational Spectra☆
2013The way ab initio simulation provides the vibrational properties of crystalline compounds is described. The transverse optical (TO) and longitudinal optical (LO) branches of the infrared (IR) spectrum, the TO-LO splitting, the IR intensities, the vibrational contribution to the dielectric tensor, the Born effective charges, and the reflectance spectrum
DOVESI, Roberto +4 more
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1987
<p>«Vibrations in Structures» concentrates on vibrations in structures as excited by human motion or machine operation. Man-induced vibrations may arise from walking, running, skipping, dancing, etc. They occur mostly in pedestrian structures, office buildings, gymnasia and sports halls, dancing and concert halls, stadia, etc.
Hugo Bachmann, Walter Ammann
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<p>«Vibrations in Structures» concentrates on vibrations in structures as excited by human motion or machine operation. Man-induced vibrations may arise from walking, running, skipping, dancing, etc. They occur mostly in pedestrian structures, office buildings, gymnasia and sports halls, dancing and concert halls, stadia, etc.
Hugo Bachmann, Walter Ammann
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The Journal of the Acoustical Society of America, 2005
A building (1) comprising vertically extending prismatic pillars (2) to support the vertical load of the building (1), beams (3) bridging between the prismatic pillars (2) and extending horizontally between the prismatic pillars (2), vibration controllers (6) disposed side by side on the opposed lateral surfaces (4, 5) of the prismatic pillars (2) of ...
Ikuo Shimoda, Kiyoharu Suzuki
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A building (1) comprising vertically extending prismatic pillars (2) to support the vertical load of the building (1), beams (3) bridging between the prismatic pillars (2) and extending horizontally between the prismatic pillars (2), vibration controllers (6) disposed side by side on the opposed lateral surfaces (4, 5) of the prismatic pillars (2) of ...
Ikuo Shimoda, Kiyoharu Suzuki
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Vibration–based structural damage identification
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2001Many aerospace, civil and mechanical systems continue to be used despite ageing and the associated potential for damage accumulation.
Farrar, Charles R. +2 more
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Vibrating structure gyroscopes
Sensor Review, 1996Research and development of solid state gyroscopes has been, for a long time, ongoing within British Aerospace (Systems & Equipment) Ltd, (BASE). BASE, in order to be a leader in the supply of gyroscopes, has continued to research and develop new products. Future developments point to solid state devices supporting conventional gyroscopes.
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Thioacetylacetone: Structural and Vibrational Assignments
ChemPhysChem, 2004AbstractThioacetylacetone and its variously deuterated isotopomers have been investigated using electronic and vibrational spectroscopy combined with quantum chemical calculations. Thioacetylacetone is known for its photochromic properties, but the structures of the initial and final forms have been the subject of a long debate.
Yevgen, Posokhov +5 more
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The Journal of the Acoustical Society of America, 1997
A vibration proofing structure having a first base and a first oil damper mounted thereon having a first tank mounted on the first base, first pistons arranged in the first tank, and a first rod having a first end mounted on the first pistons and a second end outwardly extending from the first tank.
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A vibration proofing structure having a first base and a first oil damper mounted thereon having a first tank mounted on the first base, first pistons arranged in the first tank, and a first rod having a first end mounted on the first pistons and a second end outwardly extending from the first tank.
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The Journal of the Acoustical Society of America, 1986
A vibration damper comprising an elastic block having a cavity open at its bottom end, a support integrally united with the elastic block, a partition of a rigid material disposed adjacent the bottom end of the elastic block so as to close the cavity to form an operating chamber on one side of the partition, a diaphragm disposed on the other side of ...
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A vibration damper comprising an elastic block having a cavity open at its bottom end, a support integrally united with the elastic block, a partition of a rigid material disposed adjacent the bottom end of the elastic block so as to close the cavity to form an operating chamber on one side of the partition, a diaphragm disposed on the other side of ...
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Vibration suppressing structure
The Journal of the Acoustical Society of America, 1995A vibration suppressing structure including a main structure and a vibration suppressing section disposed in an upper portion of the main structure which is provided with an auxiliary structure adapted to undergo vibration in response to the vibration of the main structure occurring due to a disturbance, an auxiliary mass, a driving device, and a ...
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Improving vibrator structure to eliminate vibration noise
The International Journal of Advanced Manufacturing Technology, 2017Vibroseis is an important deep seismic exploration method, and the vibrator is a unique tool used to transmit scanning signals underground. However, seismic waves recorded by receivers often contain many kinds of noises, such as vibration noise, which are detrimental to the perception of the source signal.
Jin-juan Jiang +3 more
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