Results 21 to 30 of about 369,597 (251)
Recent Progress in Brillouin Scattering Based Fiber Sensors
Sensors, 2011 Brillouin scattering in optical fiber describes the interaction of an electro-magnetic field (photon) with a characteristic density variation of the fiber.
Liang Chen, Xiaoyi Bao
doaj +1 more source
Vibration damping to control railroad wheel squeal [PDF]
The Journal of the Acoustical Society of America, 1983 The squeal noise radiated by rapid transit wheels on sharp turns is an important instance of friction generated noise. It is caused by the lateral slip-stick frictional force between the wheel and railhead. Noise control methods such as rail lubrication, hard faced rails, tuned wheel dampers, and resilient wheels have not been entirely satisfactory ...
openaire +1 more source
Analysis of Ground Vibration near a Railroad
The 9th International Symposium on Recent Advances in Exploration Geophysics (RAEG 2005), 2005 The ground vibration generated by the Shinkansen, Japanese super express train，can be problematic for people and structures nearby. The purpose of this study is to make clear the mechanism of the ground vibration generated by a train and to develop a numerical simulation tool which can quantitatively evaluate the effect of wave filtering. This study is
M. Katou +3 more
openaire +2 more sources
Вестник Научно-исследовательского института железнодорожного транспорта, 2017 Constructions along railway traffic lines are always exposed to vinrations generated by the passing transport. This sometimes leads to shifts in their state even threatening the comfort of the people that stay here.
N. K. Kapustyan +2 more
doaj +1 more source
Vibration diagnostics of transportation structures on railroads
Vibroengineering ProcediaThe article presents the results of the natural frequencies of vibrations of the span structure during the express-diagnostics, to excite the process of vibrations of the structure the pulse impact of the concentrated load of small mass is applied in the middle of the span structure (the method of small pulse impacts – “human jump”).
Ivan Sergeevich Bondar +2 more
openaire +1 more source
RAILROAD TRANSPORTATION SHOCK AND VIBRATION TESTING [PDF]
, 1961 A description is given of a test made to determine how successfully precision equipment can withstand transportation environments and to obtain data on this environment. (auth)
openaire +2 more sources
Results in EngineeringWhen highways and railroads traverse rural residential areas where impact hole-forming construction vibrations tend to cause damage to houses, it is difficult to accurately assess the extent of vibration impacts on non-uniform unsaturated soil sites by ...
Guobing Wang +5 more
doaj +1 more source
Railroad Impact in Backward Economies: Spain, 1850-1913 [PDF]
, 2006 This article reassesses the economic impact of Spanish railroads in 1850-1913, which has been usually considered to be substantially higher than in the most developed countries on the basis of the social saving methodology.
Herranz Loncán, Alfonso +1 more
core +1 more source
Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems
Advanced Electronic Materials, EarlyView.Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
wiley +1 more source
Archaeological Prospection, EarlyView.ABSTRACT The Roman city of Doclea is a key archaeological site of Montenegro, valued for its impressive remains and its role in the nation's cultural identity within European and the Mediterranean history. Doclea was the second‐largest city in the province of Roman Dalmatia, a municipium created in the first century ad and named after the Illyrian ...
Tatjana Koprivica +5 more
wiley +1 more source