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Huainan, China

Anhui University of Science and Technology one of the five key universities in Anhui Province, China. It is situated in Huainan City, Anhui Province, which is also known as a green city and as a base of science and education in China. Covering a land area of 1,300 mu, the university is divided into three branches. Wikipedia.

Liu W.,Anhui University of Science and Technology
Optics Letters | Year: 2015

A new radiation scheme, which adopts the high-order harmonics of a train of electron bunches to excite the highorder guided mode, is proposed and investigated by numerical simulations. By applying this scheme, the radiation with frequency close to 1 THz is generated from a waveguide with relatively big-size structure, and the bunching frequency is much lower than the radiation frequency.This scheme may offer a promising candidate for practical terahertz source since it breaks the two main bottlenecks of the vacuum electronic devices in the terahertz region: very tiny-size structure and unapproachable electron beam. © 2015 Optical Society of America. Source

Zhan J.,Anhui University of Science and Technology
Molecular systems biology | Year: 2010

One limit on developing complex synthetic gene circuits is the lack of basic components such as transcriptional logic gates that can process combinatorial inputs. Here, we propose a strategy to construct such components based on reusable designs and convergent reengineering of well-studied natural systems. We demonstrated the strategy using variants of the transcription factor (TF) LacI and operator Olac that form specifically interacting pairs. Guided by a mathematical model derived from existing quantitative knowledge, rational designs of transcriptional NAND, NOR and NOT gates have been realized. The NAND gates have been designed based on direct protein-protein interactions in coupling with DNA looping. We demonstrated that the designs are reusable: a multiplex of logic devices can be readily created using the same designs but different combinations of sequence variants. The designed logic gates are combinable to form compound circuits: a demonstration logic circuit containing all three types of designed logic gates has been synthesized, and the circuit truthfully reproduces the pre-designed input-output logic relations. Source


Wang G.-W.,Anhui University of Science and Technology
Chemical Society Reviews | Year: 2013

Recently, mechanical milling using a mixer mill or planetary mill has been fruitfully utilized in organic synthesis under solvent-free conditions. This review article provides a comprehensive overview of various solvent-free mechanochemical organic reactions, including metal-mediated or -catalyzed reactions, condensation reactions, nucleophilic additions, cascade reactions, Diels-Alder reactions, oxidations, reductions, halogenation/aminohalogenation, etc. The ball milling technique has also been applied to the synthesis of calixarenes, rotaxanes and cage compounds, asymmetric synthesis as well as the transformation of biologically active compounds. © 2013 The Royal Society of Chemistry. Source

Feng C.,Nanyang Technological University | Loh T.-P.,Anhui University of Science and Technology
Angewandte Chemie - International Edition | Year: 2014

The rhodium(III)-catalyzed ortho C-H alkynylation of non-electronically activated arenes is disclosed. This process features a straightforward and highly effective protocol for the synthesis of functionalized alkynes and represents the first example of merging a hypervalent iodine reagent with rhodium(III) catalysis. Notably, this reaction proceeds at room temperature, tolerates a variety of functional groups, and more importantly, exhibits high selectivity for monoalkynylation. Hot rhod: A rhodium-catalyzed, electronically reversed Sonogashira reaction between unbiased arenes and the hypervalent iodine reagent 1 proceeds through C-H activation. This reaction displays excellent functional-group tolerance and high efficiency, and thus opens a new synthetic pathway to access functionalized alkynes. Cp*=C5Me5, DCE=1,2-dichloroethane, Piv=pivaloyl, TIPS=triisopropylsilyl. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Ding G.-J.,Anhui University of Science and Technology
Nuclear Physics B | Year: 2010

We present a supersymmetric model of quark and lepton based on S 4×Z 3×Z 4 flavor symmetry. The S 4 symmetry is broken down to Klein four and Z 3 subgroups in the neutrino and the charged lepton sectors, respectively. Tri-Bimaximal mixing and the charged lepton mass hierarchies are reproduced simultaneously at leading order. Moreover, a realistic pattern of quark masses and mixing angles is generated with the exception of the mixing angle between the first two generations, which requires a small accidental enhancement. It is remarkable that the mass hierarchies are controlled by the spontaneous breaking of flavor symmetry in our model. The next to leading order contributions are studied, all the fermion masses and mixing angles receive corrections of relative order λc2 with respect to the leading order results. The phenomenological consequences of the model are analyzed, the neutrino mass spectrum can be normal hierarchy or inverted hierarchy, and the combined measurement of the 0ν2β decay effective mass m ββ and the lightest neutrino mass can distinguish the normal hierarchy from the inverted hierarchy. © 2009 Elsevier B.V. Source

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