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Study on semi-continuous Technology System for Soft Material Stripping in Large Surface Mines

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International Journal of Mining Science and Technology 2000年第1期21卷 36-40页

作者：王喜富卢明银车兆学张达贤王忠强

continuous and semi-continuous mining technology has become the main trend of modern surface mines in the world. According to the deposit characteristics of coal basin in China and Chinese situation,this paper discussed the new semi-continuous technology── shovel - transfer wagon-belt conveyor and its application prospect in large surface coal mines in China.

关键词： semi-continuous technology soft material stripping shovel-transfer wagon-belt conveyor

Modified ADM1 for modeling free ammonia inhibition in anaerobic acidogenic fermentation with high-solid sludge

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Journal of Environmental Sciences 2017年第2期29卷 58-65页

作者： Jie Bai He Liu Bo Yin Huijun Ma Xinchun Chen School of Environmental and Civil Engineering Jiangnan UniversityWuxi 214122China

Anaerobic acidogenic fermentation with high-solid sludge is a promising method for volatile fatty acid（VFA） production to realize resource recovery. In this study, to model inhibition by free ammonia in high-solid sludge fermentation, the anaerobic digestion model No. 1（ADM1） was modified to simulate the VFA generation in batch, semicontinuous and full scale sludge. The ADM1 was operated on the platform AQUASIM *** kinds of inhibition forms, e.g., simple inhibition, Monod and non-inhibition forms,were integrated into the ADM1 and tested with the real experimental data for batch and semi-continuous fermentation, respectively. The improved particle swarm optimization technique was used for kinetic parameter estimation using the software MATLAB 7.0. In the modified ADM1, the Ksof acetate is 0.025, the km,acis 12.51, and the KI_NH3is 0.02,respectively. The results showed that the simple inhibition model could simulate the VFA generation accurately while the Monod model was the better inhibition kinetics form in semi-continuous fermentation at pH 10.0. Finally, the modified ADM1 could successfully describe the VFA generation and ammonia accumulation in a 30 m^3full-scale sludge fermentation reactor, indicating that the developed model can be applicable in high-solid sludge anaerobic fermentation.

关键词： High-solid sludge ADM1 semi-continuous Full scale Free ammonia inhibition

Impact of modified electrodes on boosting power density of microbial fuel cell for effective domestic wastewater treatment:A case study of Tehran

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燃料化学学报 2017年第7期45卷 871-879页

作者： Fatemeh Nourbakhsh Mohammad Pazouki Mohsen Mohsennia Department of Chemistry University of Kashan Department of Energy Institute of Materials and Energy (MERC) Nanoscience and Nanotechnology Institution University of Kashan

Utilizing microbial fuel cells( MFCs) is a promising technology for energy-efficient domestic wastewater treatment,but it still faces practical barriers such as low power generation. In this study,the LaMnO_3 perovskite-type oxide nanoparticles and nickel oxide/carbon nanotube/polyaniline( NCP) nanocomposite( the cathode and anode catalysts,respectively) have been prepared and used to enhance power density of MFC. The prepared La-based perovskite oxide catalysts were characterized by X-ray diffraction( XRD) and scanning electron microscopies( SEM). The electrocatalytic properties of the prepared catalysts were investigated through cyclic voltammetry( CV) and electrochemical impedance spectroscopy( EIS) and Tafel plot at ambient temperature. Results show the exchange current densities of LaMnO_3/carbon cloth cathode and NCP nanocomposite/carbon cloth anode were 1.68 and 7 times more compared to carbon cloth cathode,respectively. In comparison to the bare carbon cloth anode,the MFC with the modified electrodes shows 11 times more enhancement in power density output which according to electrochemical results,it can be due to the enhancement of the electron transfer capability. These cathodic and anodic catalysts were examined in batch and semicontinuous modes to provide conditions close to industrial conditions. This study suggests that utilizing these low cost catalysts has promising potential for wastewater treatment in MFC with high power generation and good COD removal efficiency.

关键词： carbon nanotube nickle oxide La-based perovskite oxide semi-continuous mode

EQUIVALENT CONDITIONS FOR THE UNIFORM CONTINUITY OF DUALITY MAPPING

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Systems Science and Mathematical Sciences 1997年第4期10卷 333-336页

作者： WANG Qi(Institute of Basic Mathematics, Yunnan University,Kumming Teacher’s College, Kunming 650031, China) 云南大学数学所云南昆明

For a duality mapping F(x), this paper gives equivalent conditions for F(x)being single-valued and uniformly continuous, or uniformly lower semi-continuous, or forexistence a uniformly continuous support functions.

关键词： Duality mapping uniformly lower semi-continuous support functions uniformly rotund.

CHARACTERIZATION OF continuous SELECTIONS FOR METRIC PROJECTIONS IN C(Ⅹ)

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Science in China,Ser.A 1988年第9期 1039-1052页

作者：李武 Hangzhou University Depatment of Mathematics The Pennsylvania State University University Park PA.16802 U.S.A

In 1969, Lazar, Morris and Wulbert gave a necessary condition of OCC(X) whose metric projection P_G has s continuous selection. In this paper, we show that the necessary condition mentioned above is also sufficient for the existence of continuous selections for P_G. As abonus, we prove that P_G has a continuous selection if and only if P_G is almost lower semicontinuity.

关键词： continuous selection metric projection semi-continuous characterization finite-dimension.

A Study of Banach Fixed Point Theorem and It’s Applications

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American Journal of Computational Mathematics 2021年第2期11卷 157-174页

作者： Md. Abdul Mannan Md. R. Rahman Halima Akter Nazmun Nahar Samiran Mondal Department of Mathematics Uttara University Dhaka Bangladesh Department of Computer Science & Engineering Prime University Dhaka Bangladesh Department of Mathematics Jashore University of Science and Technology Jashore Bangladesh

This paper aims at treating a study of Banach fixed point theorem for mapping results that introduced in the setting of normed space. The classical Banach fixed point theorem is a generalization of this work. A fixed point theory is a beautiful mixture of Mathematical analysis to explain some conditions in which maps give excellent solutions. Here later many mathematicians used this fixed point theory to establish their results, see for instance, Picard-Lindel of Theorem, The Picard theorem, Implicit function theorem etc. Also, we developed ideas that many of known fixed point theorems can easily be derived from the Banach theorem. It extends some recent works on the extension of Banach contraction principle to metric space with norm spaces.

关键词： Metric Space Norm Space Complete Norm Space Operator Banach Fixed Point Theorem Uniformity Strong and Weak contraction semi-continuous

A Study of Caristi’s Fixed Point Theorem on Normed Space and Its Applications

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Advances in Pure Mathematics 2021年第3期11卷 169-179页

作者： Md. Abdul Mannan Moqbul Hossain Halima Akter Samiran Mondal Department of Mathematics Uttara University Dhaka Bangladesh Department of Mathematics Jashore University of Science and Technology Jashore Bangladesh

In this work, we will discuss Caristi’s fixed point theorem for mapping results introduced in the setting of normed spaces. This work is a generalization of the classical Caristi’s fixed point theorem. Also, Caristi’s type of fixed points theorem was partial discussed in Reich, Mizoguchi and Takahashi’s and Amini-Harandi’s results, we developed ideas that many known fixed point theorems can easily be derived from the Caristi theorem.

关键词： Norm Uniformity Mizoguchi and Takahashi’s Rich’s Problem Caristi’s Fixed Point Theorem Strong and Weak Contraction semi-continuous

Fuzzy semi-continuity of fuzzy number-valued function

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Journal of Harbin Institute of Technology(New Series) 2002年第2期9卷 139-141页

作者： Magassy OUS MANE 吴从炘 Dept.of Mathematics Harbin Institute of TechnologyHarbin 150001China

In this paper we discuss the conecept and property of fuzzy semi continuous function.

关键词： fuzzy numbers fuzzy number-valued function fuzzy semi-continuous function

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功能微球的制备及应用

功能微球的制备及应用