Age constraints for the Trachilos footprints from Crete ...

2021-10-11 · We present an updated time frame for the 30 m thick late Miocene sedimentary Trachilos section from the island of Crete that contains the potentially oldest hominin footprints. The section is ...

Significantly enhancing fracture toughness of epoxy ...

2021-8-27 · 1. Introduction. As a kind of important thermosetting resin, epoxy resin (EP) has been widely used in many fields, and is the important matrix resin of carbon fiber (CF) reinforced composite materials due to its advantages of high rigidity, good adhesion, high thermal stability, good chemical resistance and low cost [].However, due to the high crosslinking density, the …

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2021-4-25 · [18] .Shi,Liu,,.Improved oxygen reduction activity on silver-modified LaMnO3-graphene via shortens the conduction path of adsorbed oxygen.RSC Advances.2015 [19] .Liang,Yaqing,Cheng,Xiaozhe,,,Lu,Jing,Yu,Yiqing,Xu,Xipeng.Preparing porous diamond composites via electrophoretic deposition of diamond particles on foam nickel …

Amylin deposition activates HIF1α and 6-phosphofructo-2 ...

2021-2-12 · Hyperamylinemia induces amylin aggregation and toxicity in the pancreas and contributes to the development of type-2 diabetes (T2D). Cardiac amylin deposition in patients with obesity and T2D was ...

Cerebralcare Granule® enhances memantine …

2021-6-28 · Alzheimer''s disease (AD) is a progressive neurodegenerative disease characterized by memory deficits and cognitive decline. Current drugs can only relieve symptoms, but cannot really cure AD. Cerebralcare Granule® (CG) is a Traditional Chinese medicine (TCM) containing a variety of biologically active compounds. In our previous studies, CG has shown a beneficial …

Interfacial charge kinetics of ZnO/ZnTe heterostructured ...

2018-5-10 · The deposition time for ZnTe was respectively controlled at 1 min, 2 min and 3 min, which is denoted as ZnO/ZnTe-1min, ZnO/ZnTe-2min, ZnO/ZnTe-3min, respectively. 2.4. Preparation of ZnTe thin film. Pure ZnTe was also prepared on FTO substrate via electrochemical deposition. Firstly, 0.38 mol/L ZnSO 4 aqueous solution was prepared.

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1984-7-1 · Insights into How Fluorine-Adsorption and n-Type Doping Affect the Relative Stability of the (001) and (101) Surfaces of TiO2: Enhancing the Exposure of More Active but Thermodynamically Less Stable (001) Xiangchao Ma, Ying Dai, Wei Wei, Baibiao Huang, and Myung-Hwan Whangbo. J Phys. Chem. Lett. 6, pp 1876–1882,2015.

Anti-corrosive performance of electropolymerized ...

2016-1-1 · Firstly, a phosphoric acid doped PANI coating was electropolymerized on 304SS via CV deposition. The working electrodes were immersed in a mixture of 0.1 M aniline with 0.5 M phosphoric acid. Electrodeposition was performed at a rate of 20 mV/s in a potential range of −0.4 to 1.3 V Ag/AgCl, and the cycle number was set to 24.

A novel paradigm of photocatalytic cleaning for …

A sectional photocatalysis-membrane coupling system was proposed for membrane cleaning. • Photocatalytic membrane for the only purpose of H 2 O 2 production was set for membrane cleaning.. Fenton-like oxidation of organic foulants on the membrane was initiated by photogenerated H 2 O 2.. It can reduce the transportation and storage cost/risk of H 2 O 2 for …

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Pd-Supported Catalysts: Evolution of Support Porous ...

2021-3-12 · Adsorption of N2 at 77 K and scanning electron microscopy have been used to measure the changes in the support morphology, at nano- and microscale level, along the processes involved in the preparation of a supported Pd catalyst: Pd deposition, doping, and thermal treatments. Among the investigated supports, viz., activated carbons, γ-Al2O3, SiO2, …

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Vacancy-defect modulated pathway of photoreduction of …

2021-8-6 · The coupling energy barrier with a value of 0.84 eV (*CO–CHOH) is lower than that of other coupling pathways (*CO–COH, 1.01 eV and *CO–CH 2, 1.84 eV), hence the C …

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2021-10-17 · Xilong Cao, Hao Tian, Chengpeng Hu, Fei Huang, Yu Wang, Xiudong Sun, Zhongxiang Zhou, Defect dipole evolution and its impact on the ferroelectric properties of Fe-doped KTN single crystals. Journal of the American Ceramic Society, 2019, 102, 3117-3122.

We Take the Hard Out of HARDFACING

2021-5-4 · cored wires can typically add greater deposition and an improved bead appearance. 4. Almost any conventional semiautomatic or automatic welder can be used. Limitations: 1. 2. Welding equipment costs can be substantial. Fixturing is also often required. 2. Submerged arc welding is limited to the flat position or roundabouts. Its ability to weld ...

Ionics, /,

Li3VO4/C nanofibers (LVO/C NFs) with tunable morphology and microstructure are prepared via an aqueous-based electrospinning approach. LVO/C NFs with smooth surface and high defects in C (LVO/C NFs-1) are obtained by pre-annealing in air, while pre-annealing in N2 leads to the formation of LVO/C NFs with numerous nanoparticles embedded in fiber matrix (LVO/C NFs-2).

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2016-9-18 · ,1967.11,,,,,,。1990,,2000,,2007 ...

Cavity Flame-Holders for Ignition and Flame Stabilization ...

2012-5-23 · Investigation of supersonic combustion dynamics via 50 kHz CH* chemiluminescence imaging. Proceedings of the Combustion Institute, Vol. 36, No. 2 ... Yu Xilong; 24 September 2012 ... Energy Deposition applied to a Transverse Jet in a Supersonic Flow.

Metals | Free Full-Text | Preparation of a Nickel Layer ...

2021-10-15 · The content of sodium dodecyl sulfate (SDS, 99.8% purity, Xilong Scientific Co., Ltd., Shantou, China) is 0.0020–0.0100 g/L in the bath. Nickel deposition is obtained on applying a 1.5 A/dm 2 cathodic current density at 50 °C for 24 h in a 1000 mL beaker. The beaker is placed in a water bath pot (Yuhua Instrument Company, Zhengzhou, China ...

[14] AI Jun,LU Xilong,WANG Weixing,et al.Synthesis of CoAl2O4 Spinel-Type Cobalt Blue Pigments via Acid Chelating Precursor Technique[J].Journal of Ceramics,2011,32(2):178-181. [15] CUI Yanwang,XUAN Bai,SHAO Minliu,et al.Synthesis of Cobalt

Synergistic Dual-Confinement Effect: Merit of Hollowly ...

2021-3-12 · Lithium–sulfur (Li–S) batteries have become a powerful alternative for lithium-ion batteries due to their high energy density and high specific capacity. However, several problems still hinder its practical application, such as poor electron conductivity, large volumetric expansion, and severe shuttle effect. To overcome these obstacles, a metallic and polar sphere-like …

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1998-7-1 · ,HJ,,,,,。《》、,,International Journal of Hydrogen En...

Wang Xilong, Du Jinzhou*, Ji Tao, Wen Tingyu, Liu Sumei, Zhang Jing. An estimation of nutrient fluxes via submarine groundwater discharge into the Sanggou Bay—A typical multi-species culture ecosystem in China, Marine Chemistry. 2014, 167 :113-122

Challenges and opportunities in biomass ash management …

2021-10-1 · Considering biomass as an energy source generates fewer air pollutants than conventional fossil fuels and also decreases the waste (footprint) discarded to the landfills [].Biomass is converted into energy typically by direct combustion and this technology is still used for producing energy globally on a large scale [].Biomass can be utilized in three various …

Systematic Approach for the Formulation and …

2016-11-23 · The nonnucleoside reverse transcriptase inhibitors, used for the treatment of HIV infections, are reported to have low bioavailability pertaining to high first-pass metabolism, high protein binding, and enzymatic metabolism. They also show low permeability across blood brain barrier. The CNS is reported to be the most important HIV reservoir site.

Indoor Chemistry | Environmental Science & Technology

2018-2-5 · This review aims to encapsulate the importance, ubiquity, and complexity of indoor chemistry. We discuss the many sources of indoor air pollutants and summarize their chemical reactions in the air and on surfaces. We also summarize some of the known impacts of human occupants, who act as sources and sinks of indoor chemicals, and whose activities (e.g., …

Microbial chemolithotrophy mediates oxidative …

2019-12-26 · We utilized the Luquillo Critical Zone Observatory (LCZO) in Puerto Rico to test the hypothesis that mineral-derived Fe(II) within the granitic bedrock at LCZO is capable of supporting microbial Fe(II)-based chemolithotrophy and that the resultant redox-driven mineralogical transformations contribute to bedrock weathering. While this hypothesis had been postulated …

(PDF) Carbon-Based Electrocatalysts for Advanced Energy ...

2015-8-28 · Oxygen reduction reaction (ORR) and o xygen evolution reaction (OER) play curial roles in electrochemical energy. conversion and storage, including fuel cells and metal-air batteries. Having rich ...

Carbon, /,

2021-10-30 · Direct synthesis and modification of graphene in Mg melt by converting CO2: A novel route to achieve high strength and stiffness in graphene/Mg composites Carbon (IF 9.594) Pub Date : 2021-10-22. Xuejian Li, Hailong Shi, Xiaojun Wang, Xiaoshi Hu, Chao Xu, Wenzhu Shao. :2021-10-27.

3 Technologies in Exploration, Mining, and Processing ...

2021-11-29 · The life cycle of mining begins with exploration, continues through production, and ends with closure and postmining land use. New technologies can benefit the mining industry and consumers in all stages of this life cycle. This report does not include downstream processing, such as smelting of ...

Additive manufacturing of Csf/SiC composites with high ...

2021-10-27 · Polyethylene glycol (PEG6000, Xilong Chemical Co., Ltd., China) was employed to assure a good dispersion of the silicon carbide powders and the short carbon fibers in the ink. Methyl cellulose (MC, 100000 mPa s, Shanghai Macklin Biochemical Technology Co., Ltd., China) was employed as the binder to adjust the rheology.