Results 31 to 40 of about 169,081 (292)

Ateliers primaires de l’Égypte gréco-romaine : le site de Beni Salama dans le Wadi Natrun

Archéopages, 2010
The Beni Salama Site in the region of Wadi Natrun is of key importance if we are to understand the role of Egypt in the glass-making industry of antiquity. Excavations on ancient glass-making sites in the Near East suggested that similar furnaces existed
Marie-Dominique Nenna
doaj   +1 more source

Aging and distributional tone learning: the role of pitch memory in older adults’ discrimination of mandarin lexical tones

Language and Cognition
Distributional learning enables listeners to form phonetic categories by extracting statistical regularities from speech input. Younger Cantonese speakers can acquire the Mandarin level-falling (T1–T4) contrast through distributional learning, with ...
Yin-To Chui, Susu Lai, Quentin Zhen Qin
doaj   +1 more source

Development of an algorithm to generate and evaluate cutting solutions in edging and trimming operations at sawmills

Revista Facultad de Ingeniería Universidad de Antioquia, 2012
In this research work an algorithm that gathers the best procedures applied in sawmills was developed, along with a methodology based on cutting geometrical line analysis.
Francisco Vergara González, Felipe Baesle Abufarde, Mario Ramos Maldonado   +2 more
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Effect of concrete strength and thickness of flat slab on preventing of progressive collapse caused by elimination of an internal column [PDF]

Journal of Structural and Construction Engineering, 2019
Designing structures against progressive collapse is an important part of the building design. However, some guidelines such as GSA and UFC holds implications for reducing the risk of progressive collapse of structures, but because the nature of the ...
Atefeh Soleymani, mohammad Reza Esfahani
doaj   +1 more source

Fluid Flow, Solidification and Solute Transport in Slab Continuous Casting with Different S-EMS Installation Positions

Metals
During continuous slab casting, strand electromagnetic stirring (S-EMS) has a significant effect on improving the slab quality. In the current work, a numerical model based on the practical slab continuous casting machine and coupled electromagnetic ...
Daiwei Liu, Guifang Zhang, Jianhua Zeng, Yang Li   +3 more
doaj   +1 more source

Review of seismic velocity anomalies in the lower mantle

地球与行星物理论评, 2023
The lower mantle accounts for more than 50% of the total volume of the Earth, and influences the evolution of the Earth. Early studies showed that the lower mantle is relatively homogeneous, but since the 1970s, seismic tomography revealed the velocity ...
Yutong Shi, Weiran Ye, Keyi Bin, Yikang Shi, Zhouchuan Huang   +4 more
doaj   +1 more source

Effects of Finish Timing on Surface Properties of Concrete Slab [PDF]

, 2021
The durability of concrete slab is apt to be influenced by finish timing of the concrete surface. Therefore,the finish timing which is considered the bleeding and the setting time of the concrete slab is very important.However, it is not obvious that ...
23, DAI, Akiyoshi, Masanori, HIGUCHI, 252, SAKAMOTO, Taiga, 410, 630, SAWAMOTO, Takehiro, サカモト, タイガ, 樋口, 正典, 634, MORIHAMA, Kazumasa, 臺, 哲義, サワモト, タケヒロ, ダイ, アキヨシ, 181, ヒグチ, マサノリ, モリハマ, カズマサ, 坂本, 大河, 642, 401, 644, 森濱, 和正, 澤本, 武博, 406   +24 more
core  

Circular output from a high power Nd:YLF slab laser

, 2008
Neodymium-doped Yttrium Lithium Fluoride (YLF) lasers have traditionally been power-limited by the relatively low tensile strength of the crystal. When power-scaling solid-state lasers, the choice of the gain media geometry, the doping level, and the ...
J. I. Mackenzie, Clarkson, W.A., W. A. Clarkson, Mackenzie, J.I.   +3 more
core   +1 more source

Magmatic record of India-Asia collision [PDF]

, 2015
This work was financially co-supported by Chinese Academy of Sciences (XDB03010301) and other Chinese funding agencies (Project 973: 2011CB403102 and 2015CB452604; NSFC projects: 41225006, 41273044, and 41472061).New geochronological and geochemical data
Chung, Sun-Lin, Wu, Fu-Yuan, Zhao, Zhi-Dan, Cawood, Peter Anthony, Liu, Sheng-Ao, Niu, Yaoling, Zhu, Di-Cheng, Mo, Xuan-Xue, Wang, Qing   +8 more
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Lead-doped ruthenium-iridium oxide catalysts for durable acidic oxygen evolution in proton exchange membrane electrolyzers at 3 A cm−2

Materials Futures
Widespread deployment of proton exchange membrane water electrolyzers (PEMWE) relies on acid-stable oxygen evolution reaction (OER) catalysts capable of operating at high current densities.
Jingwei Wang, Kaiyang Xu, Zhipeng Yu, Hang Cui, Haoliang Huang, Chenyue Zhang, Run Ran, Liyuan Zeng, Yang Zhao, Xinyi Xiang, Weifeng Su, Yaowen Xu, Sitaramanjaneya Mouli Thalluri, Fei Lin, Lifeng Liu   +14 more
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