Results 21 to 30 of about 351 (218)

Vibration diagnostics of transportation structures on railroads

Vibroengineering Procedia
The 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, Gulnaz Bisultanovna Karibaeva, Asel Kozhanberdynovna Kurbenova   +2 more
openaire   +1 more source

Predictive modeling analysis of the degree and scope of damage impacts on villagers' self-built houses due to uneven unsaturated soil site vibrations induced by self-dropping heavy hammer percussive hole formation construction

Results in Engineering
When 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, Muhammad Akbar, Nejib Ghazouani, Nadeem Abbas, Mohamed Hechmi El Ouni, Muhammad Usman Arshid   +5 more
doaj   +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

Vibration Analysis of Railroad Vehicle by Evaluating the Coupled Passenger-Carbody Vibration

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 2006
Although the weight of passengers can be considered as an increment of carbody mass itself in design of train carbodies, it has been shown that the passengers mass does not behave as a mere increase in mass because of the existing coupled vibration between passengers and carbody.
TOHTAKE, Takayuki, YOSHIDA, Hidehisa, NAGAI, Masao   +2 more
openaire   +2 more sources

Heterostructured Materials for Room‐Temperature Na‐S Batteries: Directional Design Strategies and Multifaceted Applications

Advanced Science, EarlyView.
In this work, heterostructured materials for room‐temperature Na‐S batteries are comprehensively reviewed. The electrochemical mechanisms of Na‐S batteries based on various redox pathways are clarified. The intrinsic functionalities and design principles of heterostructured materials are summarized.
Yeqing Yang, Xue Li, Kunjie Zhu, Xiang‐Long Huang, Yun‐Xiao Wang   +4 more
wiley   +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, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Poseidon's Sanctuary at Samikon—The Discovery of an Ancient Temple Through an Integrated Geophysical and Geoarchaeological Survey Approach for Lagoonal and Swampy Environments

Archaeological Prospection, EarlyView.
ABSTRACT Below the classical fortress of Samikon at the coast of the western Peloponnese, ancient writer Strabo mentioned a sanctuary of Poseidon which served as the centre of the religious association of the Triphylian cities. In this paper, we describe the discovery and investigation of a building structure by means of geophysical and ...
Dennis Wilken, Birgitta Eder, Sarah Bäumler, Elena Appel, Peter Fischer, Tina Georg, Federica Iannone, Lena Slabon, Timo Willershäuser, Erofili‐Iris Kolia, Andreas Vött   +10 more
wiley   +1 more source

Integrating Remote Sensing, Archaeological Survey and Geophysical Prospections for the Enhancement of Roman Doclea, Montenegro

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, Lucia Alberti, Marilena Cozzolino, Bruna Di Palma, Vincenzo Gentile, Pasquale Merola   +5 more
wiley   +1 more source

Modeling the process of interaction between vibratory roller and deformable soil during compaction of road technological layers

Вестник СибАДИ
Introduction. The article is devoted to modeling the process of interaction between a vibratory roller and deformable soil during compaction of technological layers of a highway. The relevance of the study is determined by the need to improve the quality
S. V. Savelyev, I. K. Poteyaev, G. G. Buryi   +2 more
doaj   +1 more source

From liquid learning to weaving learning: Negotiating meanings of Children's learning in family travel

British Educational Research Journal, EarlyView.
Abstract Children's learning increasingly extends into everyday informal settings, but what counts as learning in these contexts remains insufficiently understood. Focusing on family travel as a mobile and socioculturally situated informal learning context, this study adopts a sociocultural perspective and uses liquid learning as a sensitising concept ...
Zhuxian (Zoey) Li, Elaine Chiao Ling Yang, Truc H. Le, Charles Arcodia   +3 more
wiley   +1 more source