Anhui University of Technology
Anshan, China

The Anhui University of Technology is a university based in Ma'anshan, Anhui, China. It offers instruction in engineering, economics, management, literature, science and law. It is more accurate to consider it an industrial university, catering to the needs of local industries like Ma Steel.Anhui University of Technology offers a wide range of programs and courses including engineering, economics, management, literature, science and law while laying emphasis on engineering. The university is located in Ma’anshan city Anhui Province, which has been granted with many national titles “A National Garden City”, “Top Quality Environment City”, “National Tourism City” and “A Flower alongside South Bank of Yangtz River” and with half an hour’s drive to Nanjing, “Capital City for Six Dynasties in Ancient China” and 4 hours’ drive to Shanghai all by expressway.Anhui University of Technology covers an area of 1.87 million square meters and has more than 1.65 million library collections . The University has 20, 000 full-time students and 2, 000 staff members from the whole nation. AHUT has 16 schools: Metallurgy & Resources, Material Science and Engineering, Chemistry and Chemical Engineering, Construction Engineering, Electrical Engineering & Information, Arts and Law, Foreign Languages,Mathematics and Physics, Postgraduates Education, Continuing Education, Vocational Education, and Physical Education. The university offers 43 bachelor-degree programs, 3 dual-bachelor-degree programs, 31 master-degree programs, and 4 engineering master-degree programs. Since 1995, the university has successfully jointly trained doctors with renowned foreign universities. In 2001, AHUT started to accept foreign students. AHUT has 12 provincial-level labs and research centers. In the past two years, AHUT has got over 40 awards with provincial –level or above, 24 patents, and 4000 papers published including more than 200 employed by SCI, EI etc.. In 2004, the university won Excellent Grade for its teaching quality evaluated by State Ministry of Education. In Ma’anshan Hi-tech Plaza, the University has constructed an area for science and technology development. Yearly output value of the university’s industry exceeds 200 million Yuan.The International Affairs Office and International Exchange Center are responsible for the University’s international cooperation and exchange affairs. The University has carried out long-term academic exchange and cooperation with over 20 higher institutions in more than 10 countries, in the fields of industrial technology, management, culture, economics and education, AHUT has established quite a few international research centers and institutes to carry out inter-collegial and inter-governmental scientific research projects. The university also carries out students exchange programs with universities in America, Korea, Germany, Sweden, etc..AHUT is always ready for potential cooperation and exchanges with international partners for common prosperity Wikipedia.

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Song X.,Nanjing University of Aeronautics and Astronautics | Hu J.,Anhui University of Technology | Zeng H.,Nanjing University of Aeronautics and Astronautics
Journal of Materials Chemistry C | Year: 2013

Graphene with a sp2-honeycomb carbon lattice has drawn a large amount of attention due to its excellent properties and potential applications in many fields. Similar to the structure of graphene, two-dimensional semiconductors are its two-dimensional and isostructural counterparts based on the typical layer-structured semiconductors, such as boron nitride (h-BN) and transition metal dichalcogenides (e.g. MoS2 and WS2), whose layers are bound by weak van der Waals forces. Unlike the semi-metal features of graphene, the two-dimensional semiconductors are natural semiconductors with thicknesses on the atomic scale. When one of the dimensions is extremely reduced, the two-dimensional semiconductors exhibit some unique properties, such as a transition from indirect to direct semiconductor properties, and hence have great potential for applications in electronics, energy storage, sensors, catalysis and composites, which arise both from the dimension-reduced effect and from the modified electronic structure. In this feature article, recent developments in the synthesis, properties and applications of two-dimensional semiconductors are discussed. The reported virtues and novelties of two-dimensional semiconductors are highlighted and the current problems in their developing process are clarified, in addition to their challenges and future prospects. © 2013 The Royal Society of Chemistry.

Hu X.,Nanjing University of Aeronautics and Astronautics | Hu X.,Anhui University of Technology | Gong C.,Nanjing University of Aeronautics and Astronautics
IEEE Transactions on Power Electronics | Year: 2014

The high-voltage gain converter is widely employed in many industry applications, such as photovoltaic systems, fuel cell systems, electric vehicles, and high-intensity discharge lamps. This paper presents a novel single-switch high step-up nonisolated dc-dc converter integrating coupled inductor with extended voltage doubler cell and diode-capacitor techniques. The proposed converter achieves extremely large voltage conversion ratio with appropriate duty cycle and reduction of voltage stress on the power devices. Moreover, the energy stored in leakage inductance of coupled inductor is efficiently recycled to the output, and the voltage doubler cell also operates as a regenerative clamping circuit, alleviating the problem of potential resonance between the leakage inductance and the junction capacitor of output diode. These characteristics make it possible to design a compact circuit with high static gain and high efficiency for industry applications. In addition, the unexpected high-pulsed input current in the converter with coupled inductor is decreased. The operating principles and the steady-state analyses of the proposed converter are discussed in detail. Finally, a prototype circuit is implemented in the laboratory to verify the performance of the proposed converter. © 1986-2012 IEEE.

Mo X.,Anhui University of Technology
Optics Letters | Year: 2012

A radially symmetric phase mask composed of several annular zones with equal area (called APM) was designed based on the incoherent imaging theory from Fourier Optics. The phase of any ring equals minus of the phase function caused by certain defocus. Another circularly symmetric phase mask similar to the APM (called MQPM) was proposed, except for the different phase function deriving from the quartic phase mask (QPM). For MQPM, there are two differences from an existing phase mask: the selection of the phase parameters and the method to divide the phase mask. An optimization model was developed to obtain optimized parameters of the phase masks. Numerical evaluations show that both APM and MQPM are less insensitive to defocus than QPM, and the defocused optical transfer functions with two phase masks are symmetric about the in-focus plane in the axial direction. © 2012 Optical Society of America.

Rui X.,Anhui University of Technology | Rui X.,Nanyang Technological University | Tan H.,Nanyang Technological University | Yan Q.,Nanyang Technological University
Nanoscale | Year: 2014

Advanced electrodes with a high energy density at high power are urgently needed for high-performance energy storage devices, including lithium-ion batteries (LIBs) and supercapacitors (SCs), to fulfil the requirements of future electrochemical power sources for applications such as in hybrid electric/plug-in-hybrid (HEV/PHEV) vehicles. Metal sulfides with unique physical and chemical properties, as well as high specific capacity/capacitance, which are typically multiple times higher than that of the carbon/graphite-based materials, are currently studied as promising electrode materials. However, the implementation of these sulfide electrodes in practical applications is hindered by their inferior rate performance and cycling stability. Nanostructures offering the advantages of high surface-to-volume ratios, favourable transport properties, and high freedom for the volume change upon ion insertion/extraction and other reactions, present an opportunity to build next-generation LIBs and SCs. Thus, the development of novel concepts in material research to achieve new nanostructures paves the way for improved electrochemical performance. Herein, we summarize recent advances in nanostructured metal sulfides, such as iron sulfides, copper sulfides, cobalt sulfides, nickel sulfides, manganese sulfides, molybdenum sulfides, tin sulfides, with zero-, one-, two-, and three-dimensional morphologies for LIB and SC applications. In addition, the recently emerged concept of incorporating conductive matrices, especially graphene, with metal sulfide nanomaterials will also be highlighted. Finally, some remarks are made on the challenges and perspectives for the future development of metal sulfide-based LIB and SC devices. © 2014 the Partner Organisations.

Cheng M.-T.,Anhui University of Technology | Song Y.-Y.,Anhui University of Technology
Optics Letters | Year: 2012

We investigate theoretically a surface plasmon transport in the metal nanowire coupling to a pair of quantum dots. The Fano-type transmission spectrum is analyzed. The phase shift and group velocity delay of the transmitted surface plasmon are explored. The electromagnetically-induced-transparency-type transmission spectrum is also discussed. © 2012 Optical Society of America.

FeCrBSi alloy powders without and with 2-6wt.% Mo (Mo-free and Mo-added, respectively) were deposited on a plain steel using plasma transferred arc (PTA) hardfacing. The effects of Mo addition on the microstructure and properties of the FeCrBSi alloy coating were investigated by X-ray diffraction (XRD), optical microscopy, scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) attachment, transmission electron microscopy (TEM), Vickers hardness tester, hydraulic universal testing machine, dry sand abrasion test (DSAT) and water quenching method. The results show that the Mo-free coating consists of γ (Fe, Ni), M7(C, B)3, and (Fe, Cr)2B phases. Adding Mo leads to the formation of M23(C, B)6, Mo2(B, C) and Fe3Mo3(C, B) phases, except for those phases existed in the Mo-free coating. The twinning with 101- twinning plane is observed in the orthorhombic M7(C, B)3 (M=Fe, Cr, Mo) phase. A hypoeutectic microstructure can be seen in the Mo-free and 2wt.% Mo-added coatings. Increasing Mo addition to 4wt.% and 6wt.%, a hypereutectic microstructure can be obtained. The microstructure of the Mo-free coating can be refined after adding 2-6wt.% Mo. The finest microstructure can be obtained in the 4wt.% Mo-added coating. Adding Mo in the FeCrBSi alloy coating can increase its abrasive wear resistance that has no direct relation with H/E or H3/E2 because brittle fracture occurred occasionally in the abrasive wear test. The thermal shock resistance of the Mo-free coating can be improved after adding 2-6wt.% Mo. The best abrasive wear resistance and thermal shock resistance can be received in the 4wt.% Mo-added coating. © 2013 Elsevier B.V.

The steel matrix (SHS-free) coating and its composite (SHS-produced) coating reinforced by multiple ceramic particulates were developed by plasma transferred arc (PTA) overlay welding. 5% and 10% weight percentages of mixtures of aluminum (Al), titanium dioxide (TiO2), and boron oxide (B2O3) powders by sequence weight ratio of 9:8:7 were used as precursors. Aluminothermic reduction of these oxides, being highly exothermic in nature, essentially leads to a self-propagating high-temperature synthesis (SHS) of multiple ceramic particulate reinforced steel matrix composite coatings. Composite coatings have been subsequently characterized by X-ray diffraction (XRD), optical microscopy, scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) attachment, transmission electron microscope (TEM), nanoindentation, and sliding wear measurement. The results show that the hypoeutectic microstructure exists in the steel matrix coating where it consists of γ(Fe, Ni), M7C3, and (Fe, Cr)2B phases. Adding mixtures of Al-TiO2-B2O3 by sequence weight ratio of 9:8:7 changes its microstructure into pseudoeutectic characteristic whose crystal growth is cell dendrite in 5% SHS-produced coating but dendrite in 10% SHS-produced coating. Not only the metastable Al2O3 with nanometer and TiB2, but the TiB and TiC can be formed in the SHS-produced coating, except for those phases that existed in the steel matrix coating. Hardness and sliding wear resistance of the SHS-produced coatings increase in comparison with that of the steel matrix coating. The best sliding wear resistance can be obtained in the 5% SHS-produced coating for its high ratio of hardness to elastic modulus. © 2013 Elsevier B.V.

Cheng M.-T.,Anhui University of Technology
Optics Communications | Year: 2012

We investigate theoretically electrically controlling a single plasmon transport properties in a metal nanowire based on strong coupling between the guide plasmon and a quantum-dot molecule. The calculations reveal that one can control the plasmon transport properties by suitably varying the electric field. The phase shift imposing on the reflected plasmon is also analyzed. © 2011 Elsevier B.V. All rights reserved.

A multi-wall carbon nanotube/Nafion modified gold electrode (CNT/Nafion/GE) was fabricated by casting the composite film on the electrode surface. Electrogenerated chemiluminescence (ECL) of luminol at the modified gold electrode was studied under conventional cyclic voltammetry in alkaline Na 2CO3NaHCO3 buffer solution. Three ECL peaks were obtained. The most strong ECL peak (ECL-1) was enhanced about 20-fold at the CNT/Nafion modified gold electrode compared with that at the bare gold electrode. The emitter of all the ECL peaks was indentified as 3-aminophthalate. The intensities of ECL peaks were found to depend on the ratio of CNT/Nafion, the electrolytes, the pH, and the presence of O2 and N2. The mechanisms of all ECL peaks have been proposed. The results indicate that carbon nanotubes have a significantly catalytic effect on luminol ECL, which might further expand the analytical application of nanomaterial-modified electrode in the field of electrogenerated chemiluminescence. © 2010 Elsevier B.V.

Cao F.-B.,Anhui University of Technology
Industrial and Engineering Chemistry Research | Year: 2012

The object of this study is to synthesize (Ca 0.6,Sr 0.16)(Mo 0.4,W 0.6):Eu 3+ 0.08,La 3+ 0.08 by sol-gel technology. The results show that the dominant emission peak of phosphor is 5D 0 → 7F 2 (616 nm). The International Commission on Illumination (CIE) chromaticity coordinates of the red-emitting phosphor are (0.67, 0.33), which is the NTSC system standard for red chromaticity. Because there are two regions in the excitation spectra of the phosphor, one is assigned from the charge transfer state (CTS) band at about 200-350 nm, and the other is from the intra-4f transitions from 350 to 600 nm. Hence, the phosphors could be strongly excited by near-UV and blue LEDs in solid state lighting technology. X-ray diffraction patterns indicated that red-phosphor powders present a tetragonal structure, I4 1/a[88](Z = 4) space group. © 2012 American Chemical Society.

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