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Article
Discovery of oscillations above 200 keV in a black hole X-ray binary with Insight-HXMT
Low-frequency quasiperiodic oscillations (LFQPOs) are commonly found in black hole X-ray binaries, and their origin is still under debate. The properties of LFQPOs at high energies (above 30 keV) are closely r...
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Article
Element Segregation and Solidification Behavior of a Nb, Ti, Al Co-Strengthened Superalloy ЭК151
The as-cast microstructure, element segregation and solidification behavior of a multi-alloyed superalloy ЭК151 have been investigated. The results show that the severe element segregation leads to the complic...
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Article
Distribution of Phosphorus and Its Effects on Precipitation Behaviors and Tensile Properties of IN718C Cast Superalloy
The effect of phosphorus on the precipitations of γ″, γ′ and δ phases and associated tensile properties in IN718C alloy are investigated in this study. It is revealed that P atoms are dissolved in the grain in...
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Article
Effect of Heat Treatment on the Microstructure and Mechanical Properties of the Modified 718 Alloy
M718 alloy with an extra high Mo content of 7.50 wt% which reduced Nb addition and increased Al and Ti additions within the composition specifications of 718 alloy has been designed to increase the service tem...
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Article
Valuation of debris flow mitigation measures in tourist towns: a case study on Hongchun gully in southwest China
The estimation of the value on the engineering project in tourist towns is usually very challenging and controversial. In this study, an attempt has been made to evaluate the economic value of the debris flow ...
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Article
Combined impacts of antecedent earthquakes and droughts on disastrous debris flows
This paper describes a study on the combined impacts of antecedent earthquakes and droughts on disastrous debris flows. This is a novel attempt in quantifying such impacts using the effective peak acceleration...
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Article
Comparative study on debris flow initiation in limestone and sandstone spoil
Large spoil tips from reconstruction works as a result of the Wenchuan Earthquake in China are new debris flow hazards to the human society. However, there is a lack of detailed comparative study on debris flo...
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Article
An improved technique for global daily sunshine duration estimation using satellite imagery
This paper presents an improved model for global sunshine duration estimation. The methodology incorporates geostationary satellite images by including snow cover information, sun and satellite angles and a tr...
