Results 71 to 80 of about 145,655 (304)

Experimental Study on Vibration Attenuation Characteristics of Ballastless Track Structures in Urban Rail Transit

Sensors
With the rapid development of urban rail transit, the intensity and impact range of train-induced vibrations are increasing. Investigating the transmission characteristics and attenuation patterns of these vibrations in track structures aids in ...
Wuji Guo, Zhiping Zeng, Mengxuan Ye, Fushan Liu, Weidong Wang, Cheng Chang, Qiuyi Li, Ping Li   +7 more
doaj   +1 more source

Performance Study of a Fluidic Hammer Controlled by an Output-Fed Bistable Fluidic Oscillator

Applied Sciences, 2016
Using a no-moving-component output-fed bistable fluidic oscillator to control fluid flows into a parallel path has been recognized for a considerable time, but as yet it is not so widely adopted as its obvious benefits would deserve.
Xinxin Zhang, Jianming Peng, Dong Ge, Kun Bo, Kun Yin, Dongyu Wu   +5 more
doaj   +1 more source

Correction of Transducers Mass Effects from the Measured FRFs in Hammer Impact Testing [PDF]

Shock and Vibration, 2017
In modal testing, the measured frequency response functions (FRFs) are often affected by transducer mass effects. Especially when multiple sensors are employed, transducers mass effects are more significant. This paper deals with removing sensors mass effects from the measured FRFs in hammer impact testing.
Jun Ren, Jun Wang, Shusheng Bi
openaire   +2 more sources

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

Advanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu, Keliang Song, Haorui Zhang, Zhipeng Liu, Guansong He, Junru Wang, Wenming Yang, Xu Zhao, Zhijian Yang   +8 more
wiley   +1 more source

Eventualities and different things : a reply [PDF]

, 2005
“Comments are very welcome!” This basic attitude and the many ways of implementing it contribute immensely to the fascination of engaging in scientific research.
Maienborn, Claudia
core   +1 more source

Archeo‐Inspiration from the Cultural History of Glass: Historic Accounts, Anecdotes and Hard Facts as Challenges to Modern Material Science

Advanced Materials, EarlyView.
Glass, historically valued for its purity and durability, has long inspired artists and societies. This article introduces the concept of “Archeo‐Inspiration”, drawing on cultural and historical contexts of glass to guide future material innovations.
Eva von Contzen, Julia von Ditfurth, Fabian Stroth, Bastian E. Rapp   +3 more
wiley   +1 more source

Investigation on the dynamic failure characteristics of concrete slab based on mesoscopic simulation and energy conversion analysis

Case Studies in Construction Materials
In this study, Continuous Discontinuous Element Method (CDEM) was employed to analyze the failure of concrete slab under drop-hammer impact at the mesoscopic level.
Qunlei Zhang, Chun Feng, Decai Wang, Zongyuan Wu, Lan Yang, Jinchao Yue   +5 more
doaj   +1 more source

Recent Advances on Thermochromic Inks for Security Applications

Advanced Materials Technologies, EarlyView.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira, Andreia Araújo, Elvira Fortunato, Rodrigo Martins, Marta C. Corvo, Emanuel Carlos   +5 more
wiley   +1 more source

Behavior of stainless steel–reinforced concrete piers under lateral impact loading

Advances in Mechanical Engineering, 2017
In this study, stainless steel bars with the same diameter were used to replace ordinary stressed steel bars in reinforced concrete bridge piers. An ultra-high drop hammer impact test system was adopted for multiple horizontal impact tests on two groups ...
Guoxue Zhang, Shixiang Xu, Hongbing Xie, Xiwu Zhou, Yingfeng Wang   +4 more
doaj   +1 more source

Probabilistic methods for seasonal forecasting in a changing climate: Cox-type regression models [PDF]

, 2010
For climate risk management, cumulative distribution functions (CDFs) are an important source of information. They are ideally suited to compare probabilistic forecasts of primary (e.g. rainfall) or secondary data (e.g. crop yields).
Maia, A.H.N., Meinke, H.B.
core   +3 more sources