A5102876995- Extraction and Separation Processes
- Recycling and Waste Management Techniques
- Metal Extraction and Bioleaching
- Minerals Flotation and Separation Techniques
- Mycorrhizal Fungi and Plant Interactions
- Plant Pathogens and Fungal Diseases
- Karst Systems and Hydrogeology
- Geology and Paleoclimatology Research
- Yeasts and Rust Fungi Studies
- Conducting polymers and applications
- Microplastics and Plastic Pollution
- Toxic Organic Pollutants Impact
- Military History and Strategy
- Geochemistry and Elemental Analysis
- Clostridium difficile and Clostridium perfringens research
- Infant Nutrition and Health
- BIM and Construction Integration
- Fungal Biology and Applications
- Geological formations and processes
- Gut microbiota and health
- Fluoride Effects and Removal
- Radioactive element chemistry and processing
- Analytical Chemistry and Sensors
- Maritime and Coastal Archaeology
- Adsorption and biosorption for pollutant removal
Huazhong University of Science and Technology
2024
Yunnan Open University
2018-2023
Yunnan Forestry Vocational and Technical College
2020
Nanjing Normal University
2016
Tsinghua University
2014
Abstract We present two isotopic (δ 18 O and δ 13 C) sequences of a twin-stalagmite from Zhuliuping Cave, southwestern China, with 230 Th dates 14.6 to 4.6 ka. The stalagmite record characterizes orbital- decadal-scale variability Asian summer monsoon (ASM) intensity, the Holocene optimum period (HOP) between 9.8 6.8 ka BP which is reinforced by its co-varying C data. large multi-decadal scale amplitude cave indicates high sensitivity climate change. Four centennial-scale weak ASM events...
The genus Cyphellophora have been reported from plant materials, mammal’s skins and nails, food. Previous research studies only provided morphological characteristics of the asexual morphs this genus. Camptophora was introduced as a new segregated based on sickle-shaped septate conidia phylogenetic lineages. For first time, we provide sexual morph collected isolated in Yunnan Province China. jingdongensis schima are species while Ca. hylomeconis is record to China both molecular analysis...
Polybrominated diphenyl ethers (PBDEs), especially pentaBDE and decaBDE have been extensively used as flame retardants in plastics of most electronic equipment. However, PBDE congeners found the environment, wildlife human body worldwide with evidences that they pose risks both to health entire ecosystem. China has become an important production country because increasing domestic demand due rapid development industry recent years. Although was phased out 2004, still remains is electrical...
AbstractAbstractKinetics of cobalt leaching from spent catalyst was investigated. The studied variables were particle size, stirring speed, sulphuric acid concentration and reaction temperature. experiment results indicate that rate increases with increasing concentration. obtained show ∼ 98% is achieved using -0˙1 + 0˙074 mm size at a temperature 80°C for 240 min time 30% (w/w) solid/liquid ratio maintained constant 1 : 8 g mL-1. A kinetic model suggested to describe the process kinetics...
Abstract A composite material is formed by using chitosan and bentonite under the condition of dissolution with acetic acid. The was characterized scanning electron microscope thermogravimetric analysis infrared spectroscopy. effects initial concentration methyl red, adsorption time, pH, amount adsorbent on were investigated. Then, process analyzed from kinetics, related parameters calculated. results showed that has a wider pH range than as an to adsorb red; mass ratio 0.08:1, removal rate...
Abstract Thiosulfate gold leaching is a green extraction technology. Here, the effects of thiosulfate, copper ion, ethylenediamine, and polarization voltage on dissolution in this system were investigated by an electrochemical method. The results showed that addition thiosulfate promoted gold, but increasing concentration had little additional effect. ethylenediamine also increased resistance after adding ethylenediamine. increased, diffusion dispersion effect upon ion concentration....
Abstract We present two isotopic (δ 18 O and δ 13 C) sequences of a twin-stalagmite from Zhuliuping Cave, southwestern China, with 230 Th dates 14.6 to 4.6 ka. The stalagmite record characterizes orbital- decadal-scale variability Asian summer monsoon (ASM) intensity, the Holocene optimum period (HOP) between 9.8 6.8 ka BP which is reinforced by its co-varying C data. large multi-decadal scale amplitude cave indicates high sensitivity climate change. Four centennial-scale weak ASM events...
Abstract The printed circuit board is rich in recyclable metals Cu, Au, Ag, Pt, Pb, etc. precious such as gold are extracted from it, which line with the concept of resource recycling. In this paper, theorem method was used to extract waste boards. effects reaction time, temperature, concentration, and Fe3 + mass concentration on leaching rate were investigated. results showed that pH controlled at about 1, 0.12 mol/L, FeCl3 0.024 stirring speed 300 r/min, time 2 h. Under above conditions,...
Abstract With chitosan as the carrier, introduction of zeolite to form composites can adsorb fluorine ion, examines composite eryuan hot springs for adsorption, this paper investigated adsorption time, solution pH, single factor’s influence on and use corresponding optimization test temperature, material inputs, results show that at room temperature ratio 0.06 under condition best quality, pH = 5.2, mass is 4.4 g/L, Degree time 72 min, predict optimal value 98.91%, in order verify...
Logging tools play a crucial role in detecting underground oil and gas resources, operating demanding hightemperature downhole environments.Previous studies have successfully employed several passive thermal management systems (PTMSs) to safeguard electronics during operation [1][2][3][4][5].This system comprises vacuum flasks, insulators, phase change materials (PCMs), electronics, skeletons.Among these components, combination of flasks insulators has been used minimize heat transfer from...
Thiosulphate gold leaching is an alternative technology to the cyanidation of ores. Ethylenediaminetetraacetic acid referred as EDTA.A study on kinetics involved in system S 2 O 3 2- -EDTA-Cu 2+ for this paper. The effect temperature and addition copper has been also analyzed, a remarkable over overall reaction rate range from 293 323k, result shows that process conforms chemical control model. concentration [S ] considerably affects obtaining value order concentrations 0.05 0.3 mol/L which...
Collection of three sexual morphic fungal species occurring on the leaf surface plant (Dalbergia obtusifolia, Syzygium fluviatile and Ziziphus mauritiana) collected in Yunnan Province, China, have shown that they are morphologically distinct. Phylogenetic analyses partial sequences internal transcribed spacer region (ITS) large subunit rDNA (LSU) placed Trichomerium (Trichomeriaceae) but sufficiently different from all known species. Therefore, new species, multisetosum, T. xishuangbannaense...
A gold mine in Myanmar is used as the research object this paper. The thiosulfate-ethylenediamine-copper ion process conditions are discussed from three aspects that affect leaching effect: thiosulfate concentration, ethylenediamine concentration and copper concentration. It has certain significance for enriching theory practice of system. are: grinding fineness -74μm 95%, ammonium selected 0.3mol/L, 0.005mol/L, 0.06mol/L, pH value adjusted to about 10, liquid solid mass ratio 3:1, stirring...
Two new fungal species, Phaeosaccardinula dalbergiae and yunnanensis collected from Yunnan Province, China are described based on morphology molecular data. They compared with related taxa of Phaeosaccardinula. Detailed description, illustrations notes provided for each species. Molecular analysis the phylogenetic tree combined internal transcribed spacer large subunit nuclear ribosomal DNA sequences show that two species form distinct clusters within genus