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Deformation and damage characteristics of ball bearings under blast loading [PDF]

open access: yesEPJ Web of Conferences, 2021
This paper presents the unique failure characteristics, such as fragmentation, internal cracks, general deformation and pitting, observed on a SS420C ball bearing from direct blast loading using a cylindrical PE-4 explosive. Axisymmetric simulations were
Qi Ruixuan   +3 more
doaj   +1 more source

A multispecies investigation of the strain rate sensitivity of the modulus of cortical bone [PDF]

open access: yesEPJ Web of Conferences, 2021
The stiffness of cortical bone shows both inter- and intra-species variation. Currently, it is unclear whether this variation is due to differing testing protocols or an inherent feature of the material.
Rampersadh Claire Victoria   +2 more
doaj   +1 more source

Effects of a 10-week musical instrument training on cognitive function in healthy older adults: implications for desirable tests and period of training

open access: yesFrontiers in Aging Neuroscience, 2023
IntroductionPrevious studies have shown that musical instrument training programs of 16 or more weeks improve verbal memory (Logical Memory Test delayed recall), processing speed (Digit Symbol Coding Test), and executive function (Trail Making Test Part ...
Xueyan Wang   +6 more
doaj   +1 more source

Is resilience socially emerging or embedded?: A review of “resilience” under climate change in Sri Lanka

open access: yesJournal of Safety Science and Resilience, 2021
Since the advent of a new academic regime that examines the nexus of humans and water, resilience studies of the coevolution of human–water systems have advanced rapidly because of the climate change. However, the concept of resilience poses a new social
Ryo Tsuchida, Shutaro Takeda
doaj   +1 more source

Extending the annular in-plane torsional shear test specimen to applications at high strain rates [PDF]

open access: yesEPJ Web of Conferences, 2021
In-plane torsional shear testing is a well-established material testing technique in the metal forming community. The corresponding specimen is designed to be machined from sheet metal with a continuous annular shear zone intended to deform in simple ...
Osman Muhsin   +2 more
doaj   +1 more source

Procuring Survival*

open access: yesThe Journal of Industrial Economics, 2022
We investigate the impact of public procurement on business survival. Using Italy as a laboratory, we construct a large‐scale dataset of firms—covering balance‐sheet, income‐statement, and administrative records—and match it with public contract data.
Cappelletti, Matilde   +2 more
openaire   +3 more sources

Recent mechanisms of surface ecological changes driven by climate change and human activities in Lake Biwa, Japan

open access: yesFrontiers in Ecology and Evolution, 2023
Lake Biwa, Japan represents a crucial example of the complex climatic and anthropogenic drivers influencing lake ecological transformations, vital to informing Sustainable Development Goals globally.
Botong Gao   +9 more
doaj   +1 more source

Re-Examining the Effects of Official Development Assistance on Foreign Direct Investment Applying the VAR Model

open access: yesEconomies, 2022
This study re-examined the effect of official development assistance (ODA) of five major donor countries (France, Germany, Japan, the United Kingdom, and the United States) on foreign direct investment (FDI) using panel data from 2003 to 2020.
Saori Ono, Takashi Sekiyama
doaj   +1 more source

Network analysis of attitudes towards immigrants in Asia

open access: yesApplied Network Science, 2020
This study models cross-national attitudes towards immigrants in East and Southeast Asia as a signed and weighted bipartite network of countries and evaluative reactions to a variety of political issues, or determinants.
Rachael Kei Kawasaki, Yuichi Ikeda
doaj   +1 more source

Projecting XRP price burst by correlation tensor spectra of transaction networks

open access: yesScientific Reports, 2023
Cryptoassets are becoming essential in the digital economy era. XRP is one of the large market cap cryptoassets. Here, we develop a novel method of correlation tensor spectra for the dynamical XRP networks, which can provide an early indication for XRP ...
Abhijit Chakraborty   +2 more
doaj   +1 more source

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