Results 21 to 30 of about 36,870 (217)

Study on Dynamic Impact Mechanical Properties of UHPC with High-Content and Directional Reinforced Steel Fiber

Applied Sciences, 2023
Ultra-high-performance concrete (UHPC) is a kind of building material with ultra-high strength, toughness, and durability. However, under the conditions of ordinary molding technology, most of the fibers cannot play a bridging role in the direction of ...
Kewei Sun, Ye Wu, Senlin Li, Yan Feng, Longhai Feng   +4 more
doaj   +1 more source

Stress impacts telomere dynamics [PDF]

Biology Letters, 2007
Telomeres are DNA–protein complexes at the ends of chromosomes that control genomic integrity but appear to become shorter with age and stress. To test whether stress causes telomere attrition, we exposed the offspring of wild-caught house mice ( Mus musculus ) to stressful conditions and examined the changes in ...
Alexander, Kotrschal, Petteri, Ilmonen, Dustin J, Penn   +2 more
openaire   +2 more sources

Safety Characteristics of Lithium-Ion Batteries under Dynamic Impact Conditions

Energies, 2022
With the rapid development of electric vehicles, the safety accidents caused by the damage and failure of lithium-ion batteries under mechanical load are increasing gradually, which increases the significance of collision safety in lithium-ion batteries.
Jinhua Shao, Chunjing Lin, Tao Yan, Chuang Qi, Yuanzhi Hu   +4 more
doaj   +1 more source

Urban bridges studies on dynamic impacts from urban rolling stock

Транспортные сооружения, 2023
The article is dedicated to the actual dynamic impact study of rolling stock on urban bridges. The requirements for recording the dynamic impact specified in domestic and foreign regulatory documents are considered.
Natalya V. Khamidullina
doaj   +1 more source

Diagnostics of Bridge Bed Sections and Approaches in Zones of Expansion Joints on Road Bridges

Наука и техника, 2021
The object of the study is durability of expansion joints in bridge structures; the subject of the research is the vibration response of a structure obtained under conditions of natural operation.
V. A. Hodyakov, A. V. Kulan, E. N. Savina, I. L. Boiko, V. A. Grechuhin   +4 more
doaj   +1 more source

Static, dynamic mechanical properties and microstructure characteristics of ultra-high performance cementitious composites

Science and Engineering of Composite Materials, 2012
A new type of construction material named ultra-high performance cementitious composite (UHPCC) was developed in order to reduce the production cost and energy consumption of reactive powder concrete (RPC). Six different mixture proportions of UHPCC were
Zhang Wenhua, Zhang Yunsheng, Zhang Guorong   +2 more
doaj   +1 more source

Variability and methodological choices in articulatory suppression tasks: a review

Frontiers in Psychology
Researchers often examine the role of overt language and inner speech in cognition by using articulatory suppression as a form of verbal interference. The hypothesis behind is that it causally prevents participants from using verbal strategies during the
Chiara De Livio, Angelo Mattia Gervasi, Angelo Mattia Gervasi, Angelo Mattia Gervasi, Ilenia Falcinelli, Chiara Fini, Fernando Maggio, Claudio Brozzoli, Claudio Brozzoli, Anna M. Borghi, Anna M. Borghi   +10 more
doaj   +1 more source

Dynamic High Strain Rate Characterization of Lithium-Ion Nickel–Cobalt–Aluminum (NCA) Battery Using Split Hopkinson Tensile/Pressure Bar Methodology

Energies, 2020
The dynamic behavior of the lithium-ion battery is evaluated by simulating the full battery system and each corresponding component, including the jellyroll and thin-foil electrodes.
Hafiz Fadillah, Sigit Puji Santosa, Leonardo Gunawan, Akbar Afdhal, Agus Purwanto   +4 more
doaj   +1 more source

Research on the Tensile-Bending Dynamic Response of the Half-Through Arch Bridge Short Suspender Considering Vehicle-Bridge Coupling Vibration

Vibration
The half-through arch bridge short suspender is more prone to damage due to its high linear stiffness and special force characteristics. To analyze the vehicle-induced vibration characteristics of the short suspender during service, a half-through arch ...
Lianhua Wang, Guowen Yao, Xuanbo He
doaj   +1 more source

The Impact of Random Actions on Opinion Dynamics [PDF]

IEEE Transactions on Signal and Information Processing over Networks, 2018
Opinion dynamics have fascinated researchers for centuries. The ability of societies to learn as well as the emergence of irrational {\it herding} are equally evident. The simplest example is that of agents that have to determine a binary action, under peer pressure coming from the decisions observed.
Amir Leshem, Anna Scaglione
openaire   +2 more sources