Results 71 to 80 of about 2,960,420 (225)

Boston University Percussion Ensemble, April 5, 1966 [PDF]

, 1966
This is the concert program of the Boston University Percussion Ensemble performance on Tuesday, April 5, 1966 at 8:30 p.m., at the Concert Hall, 855 Commonwealth Avenue.
School of Music, Boston University
core   +1 more source

Fast and intelligent detection of concrete cracks based on sound signals and convolutional neural network

Frontiers in Built Environment
IntroductionThe traditional crack detection method usually requires a tedious process of sensor installation and removal, which seriously affects the efficiency of concrete structure management and maintenance.MethodsFor this reason, this paper develops ...
Chunlei Ge, Yue Qin, Yue Qin, Kaizhong Xie, Zubiao Lu   +4 more
doaj   +1 more source

Assessment of Diabetic Autonomic Nervous Dysfunction with a Novel Percussion Entropy Approach

Complexity, 2019
This study investigated the validity of a novel parameter, percussion entropy index (PEI), for assessing baroreflex sensitivity. PEI was acquired through comparing the similarity in tendency of change between the amplitudes of successive digital volume ...
Hai-Cheng Wei, Ming-Xia Xiao, Na Ta, Hsien-Tsai Wu, Cheuk-Kwan Sun   +4 more
doaj   +1 more source

Informing the potential of mature temperate forests as natural climate solutions: Changed fine root biomass and morphology under elevated CO2

PLANTS, PEOPLE, PLANET, EarlyView.
The land carbon sink absorbs approximately 25% of anthropogenic CO2 emissions, with forests accounting for most. Managing forests as Natural Climate Solutions is therefore a societal imperative, requiring models of where and how long carbon resides within these ecosystems. We investigated the effects of elevated CO2 on fine roots, the primary source of
Grace Handy, Angeliki Kourmouli, Marie Arnaud, Carolina Mayoral, Richard J. Norby, Michaela K. Reay, Sami Ullah, Iain P. Hartley, R. Liz Hamilton, Robert Grzesik, Andy R. Smith, Elena Vanguelova, A. Rob MacKenzie, Adriane Esquivel‐Muelbert   +13 more
wiley   +1 more source

An Experimental Investigation of the Effects of Fiber Laser Percussion Drilling: Influence of Process Parameters [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2016
This study is focused on investigating the parameters of laser percussion drilling process of nickel-base super alloy Inconel 718 with thickness of 1 mm. Fiber laser with the power of 500 watts was used as the laser source.
Mahmoud Moradi, Alireza Mohazab Pak, Ali Khorram   +2 more
doaj  

Effects of axial impact load on the dynamics of an oilwell drillstring

Advances in Mechanical Engineering, 2019
This article studies the dynamics of oilwell drillstring under large and small axial impact loads. For the case of large impact load, the drillstring is regarded as a continuous bar under the impact load of a falling mass, and the energy conservation ...
Liping Tang, Xiaohua Zhu, Hongzhi Lin
doaj   +1 more source

125 years of exploration and research at Gough's Cave (Somerset, UK) 125 ans d'exploration et de recherches à Gough's Cave (Somerset, Royaume‐Uni)

Journal of the Royal Anthropological Institute, EarlyView.
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello, Mark D. Lewis, Simon A. Parfitt   +2 more
wiley   +1 more source

The emergence and complexification of symbolic practices in the Homo lineage: an archaeological and cognitive perspective Émergence et complexification des pratiques symboliques dans la lignée Homo : une approche archéologique et cognitive

Journal of the Royal Anthropological Institute, EarlyView.
Recent archaeological discoveries, reviewed in this essay, challenge traditional views on the emergence of human symbolic cognition. Once believed to have originated in Europe around 40,000 years ago, new evidence shows it emerged much earlier across diverse regions.
Francesco d'Errico, Ivan Colagè, Larissa M. Straffon, Andrea Bender   +3 more
wiley   +1 more source

Acceleration Mechanism and Efficiency of High-Speed Rotary Percussion Drilling and Grinding of Cement Plug

Shiyou jixie
At the time of rotary percussion drilling and grinding of cement plug at high speed,the combination of high-speed rotary cutting and high-frequency axial percussion can significantly improve the efficiency of drilling and grinding cement plug,but the ...
Liu Wang, Guo Zhaohui, Jiang Zixuan, Guan Feng, Tian Haifeng, Li Zirui, Xia Yusheng   +6 more
doaj  

Mortal relationality: waria family care and the ethics of dying in Bali Relationnalité mortelle : soins familiaux des waria et éthique des mourants à Bali

Journal of the Royal Anthropological Institute, EarlyView.
Can a good death occur for those who balance on the edges of grievability? In Bali, where death marks a transition within the cycles of reincarnation, a good death depends on the mortuary care performed by intimate others – care that may be foreclosed to those whose lives are shaped by stigma.
Sylvia Tidey
wiley   +1 more source