A5058398712- Astrophysics and Cosmic Phenomena
- Titanium Alloys Microstructure and Properties
- Intermetallics and Advanced Alloy Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Welding Techniques and Residual Stresses
- Corrosion Behavior and Inhibition
- Advanced materials and composites
- Concrete Corrosion and Durability
- Astrophysical Phenomena and Observations
- Radio Astronomy Observations and Technology
- Particle Accelerators and Free-Electron Lasers
- Metal and Thin Film Mechanics
- High-Temperature Coating Behaviors
- Geochemistry and Elemental Analysis
- Dark Matter and Cosmic Phenomena
- Nonlinear Dynamics and Pattern Formation
- Extraction and Separation Processes
- Solar and Space Plasma Dynamics
- Structural Integrity and Reliability Analysis
- Minerals Flotation and Separation Techniques
- Nuclear Materials and Properties
- Elasticity and Wave Propagation
- Industrial Gas Emission Control
- Material Properties and Failure Mechanisms
- Smart Materials for Construction
Guangzhou Institute of Geochemistry
2020
Chinese Academy of Sciences
1994-2020
University of Chinese Academy of Sciences
2020
National Defense University
2009-2012
National Defense University
2011
National Central University
2007-2008
Institute of Metal Research
1994-2000
The blazar 3C 454.3 underwent an unprecedented optical outburst in spring 2005. This was first followed by a mm and then cm radio outburst, which peaked February 2006. We report on follow-up observations the WEBT to study multiwavelength emission post-outburst phase. XMM-Newton July December 2006 added information X-ray UV fluxes. source faint state. flux at higher frequencies showed fast decreasing trend, represents tail of big outburst. It quiescent state, common all frequencies. In...
Context. The quasar-type blazar 3C 454.3 underwent a phase of high activity in summer and autumn 2007 that was intensively monitored the radio-to-optical bands by Whole Earth Blazar Telescope (WEBT). γ-ray satellite Astro-rivelatore Gamma Immagini LEggero (AGILE) detected this source first late July, then November–December 2007.
The feasibility and kinetics of vanadium (V) recovery from oxidative leaching low-grade stone coal using MnO2 were investigated. Oxidative processes (OLPs) designed response surface methodology (RSM) based on the central composite design (CCD) model. results show that order factors influence OLPs is temperature > H2SO4 concentration time dosage. interaction between OLP most significant. Vanadium efficiency was 89.3% 31% 3% at 90 °C for 7.9 h. V rate controlled by chemical reaction through...
A new type of soil corrosivity probe was developed that could be used to measure not only corrosion current density (icorr and potential (Ecorr) metals in soil, but also parameters such as resistivity (ρ), redox (Eh7), temperature a field test. The stable icorr low-carbon steel (LCS) measured by the satisfactory agreement with weight loss practice. Results showed provide valuable tool for measuring corrosivity.
Post-weld heat treatments were carried out in Ti-6Al-4V (Ti-6-4) weldments after a gas tungsten arc welding (GTAW) process. The α 2 -Ti3Al compound formed the fusion zone (FZ) following annealing process, whereas γ-TiAl, -Ti 3 Al compounds FZ and affected (HAZ) respectively solution plus aging treatment. These γ-TiAl that HAZ are associated with low ductility of Ti-6-4 weldment to 2.8%. In contrast, only presence still maintains good 10.8%. Possible mechanisms for formation related regions discussed.
Active silicate materials have good adsorption and passivation effects on heavy metal pollutants. The experimental conditions for the preparation of active adsorbent (ASHMA) Cu(II) by ASHMA were investigated. optimum as follows: 200 mesh quartz sand raw material, NaOH an activating agent, NaOH/quartz = 0.45 (mass fraction), calcination at 600 °C 60 min. Under these conditions, silicon content was 22.38% utilization efficiency reached 89.11%. mechanism analyzed Langmuir Freundlich isotherm...
Due to its peculiar and highly variable nature, the blazar 3C 454.3 has been extensively monitored by WEBT team. Here, we present for first time these long-term optical flux color variability results using data acquired in B, V, R, I bands over a span of $\sim$ 2 decades. We include from collaborators public archives such as SMARTS, Steward Observatory, ZTF. The are binned segmented study source this long term when more regular sampling was available. During our study, spectral reveals...
Abstract Fuzzy clustering analysis, a new branch of mathematics, was applied to correlation soil corrosiveness for the first time. It proven that fuzzy technique could succeed in evaluat...
In this study TIG welding was carried out in Ti-15V-3Cr-3Al-3Sn alloy by using Ti-6-4 filler. The effect of two common industrial heat treatments (artificial aging treatment at 593°C/2hr /air cooling or a solution 788°C/30min/air plus 510°C/8hr/furnance cooling) on the microstructure, mechanical property and corrosion resistance weldment were investigated. It appears that these post weld result enhanced as well its resistance. addition, presents excellent TEM investigation is also to observe...