Wuhan, China
Wuhan, China

Jianghan University is a university in Wuhan, Hubei, China. Its campus is 1.4 km² large, with an additional 0.5 km² under construction. It lies within the Wuhan Economy and Technology Development Zone by the Lake Sanjiao.There are ten disciplines in the university: economics, law, education, literature, history, agriculture, science, engineering, medicine, and management. The University offers 42 undergraduate programs. There are about 1,000 full-time teachers, of whom 103 are full professors and about 400 associate professors. The number of full-time students is 15,600.Jianghan University was created as a technical college by the city government of Wuhan in 1981. It started a four-year undergraduate program in 1990s. In 2001, it merged with Huazhong University of Science and Technology and Wuhan Worker's Medical College, and later moved to the current campus.Jianghan University was accredited in October 2001 as a comprehensive university by the Ministry of Education of the People's Republic of China. It was established on the basis of the amalgamation of Jianghan University, Huazhong University of Science and Technology , Wuhan Institute of Education and Wuhan Workers Medical College. Wikipedia.

Time filter

Source Type

Tai Q.,Jianghan University | Zhao X.-Z.,Wuhan University
Journal of Materials Chemistry A | Year: 2014

Bifacial dye-sensitized solar cells (DSCs) that are able to utilize the incidental light from both their front- and rear-side have received increasing attention in recent years. Compared to conventional DSCs that can only be operated under front-side illumination, bifacial design will allow DSCs to generate up to 50% more electrical power. Besides, bifacial DSCs can be easily made transparent and may find broad applications in building integrated photovoltaics (BIPV) as power-generating windows and roof panels. Transparent counter electrodes (CEs) are key to the fabrication of bifacial DSCs. However, despite the fact that conventional Pt CE can be made transparent, its high cost and scarce source may hinder the large-scale application of DSCs. Therefore, many efforts have been made to develop low-cost alternative CEs based on carbon materials, conducting polymers, inorganic compounds and their composites. In this feature article, we intend to pay special attention to the recent advances in the development of Pt-free transparent CEs and highlight their applications in bifacial DSCs. This journal is © the Partner Organisations 2014.

Xia J.,Jianghan University | Xia J.,Washington University in St. Louis | Zhang W.,Jianghan University | Zhang W.,Washington University in St. Louis | Zhang W.,University of Washington
Nucleic Acids Research | Year: 2014

MicroRNA (miRNA) 5′-isoforms, or 5′-isomiRs, are small-RNA species that originate from the same genomic loci as the major miRNAs with their 5′ ends shifted from the 5′ ends of the miRNAs by a few nucleotides. Although 5′-isomiRs have been reported, their origins, properties and potential functions remain to be examined. We systematically studied 5′-isomiRs in human, mouse, fruitfly and worm by analysing a large collection of small non-coding RNA and mRNA profiling data. The results revealed a broad existence of 5′-isomiRs in the four species, many of which were conserved and could arise from genomic loci of canonical and non-canonical miRNAs. The well-conserved 5′-isomiRs have several features, including a preference of the 3p over the 5p arms of hairpins of conserved mammalian miRNAs, altered 5′-isomiRs across species and across tissues, and association with structural variations of miRNA hairpins. Importantly, 5′-isomiRs and their major miRNAs may have different mRNA targets and thus potentially play distinct roles of gene regulation, as shown by an integrative analysis combining miRNA and mRNA profiling data from psoriatic and normal human skin and from murine miRNA knockout assays. Indeed, 18 5′-isomiRs had aberrant expression in psoriatic human skin, suggesting their potential function in psoriasis pathogenesis. The results of the current study deepened our understanding of the diversity and conservation of miRNAs, their plasticity in gene regulation and potential broad function in complex diseases. © 2013 The Author(s) 2013. Published by Oxford University Press.

Xue Z.,Huazhong University of Science and Technology | He D.,Jianghan University | Xie X.,Huazhong University of Science and Technology
Polymer Chemistry | Year: 2015

In the last two decades, metal-catalyzed controlled radical polymerization (CRP), or atom transfer radical polymerization (ATRP) has become a ubiquitous tool for the facile synthesis of a wide range of materials with specific macromolecular architectures. The complex plays an important role in ATRP, and for this purpose researchers put a great deal of effort on studying the effect of various complexes on polymerization. However, one of the disadvantages of a copper complex, the most extensively studied catalyst system in ATRP, is the contamination of polymers resulting from a high concentration of stable catalyst. Efficiently and economically removing the catalyst from the resultant polymers will provide a wide variety of new functional polymers for specialty applications, especially for large-scale industrial manufacture. Iron-based catalysts have attracted particular attention because of their low toxicity, low cost, abundance, and environmental friendliness, and thus many iron catalysts have been designed for ATRP. This article reviews the preparation of polymers using iron-catalyzed atom transfer radical polymerization, and is organized according to: (a) mechanistic considerations; (b) iron complexes and ligand types. © 2015 The Royal Society of Chemistry.

Yu F.,Jianghan University | Li B.,Huazhong University of Science and Technology
CrystEngComm | Year: 2011

Solvothermal reactions of tetrakis(4-pyridyloxymethylene)methane (TPOM) with deprotonated benzoate (L1) in the presence of acetate (L2) of copper in H2O/CH3OH with reactant ratio 1:2:2 under different synthesis temperatures produced two new complexes, namely, {[Cu 2(TPOM)2(L1)2(L2)2]·Guest} n (1), and {[Cu4(TPOM)(L1)2(L2) 4(OH)2]·6H2O}n (2). These complexes were characterized by elemental analysis, IR spectroscopy, and X-ray single-crystal diffraction. Complex 1 reveals a 3D crystal structure with a novel 2,3,4-connected 3-nodal topology constructed from the connection of Cu centers and TPOM ligands, which neutralized the mono-dentate carboxylates from different ligands coordinated to Cu ions. Complex 2 exhibits a distinct 3D framework with 2-nodal PtS topology, constructed from the connection of neutral Cu4 SBUs and TPOM ligands. The increasing reaction temperature must be responsible for the versatile coordination modes of carboxylates in 2 compared to the ones in 1, resulting in the formation of the distinct crystal structure. In addition, magnetic investigations on complex 2 revealed antiferromagnetic intra-tetramer interactions through the mixed hydroxo and carboxylato bridges. This journal is © The Royal Society of Chemistry.

Wu Y.Q.,Jianghan University
Advanced Materials Research | Year: 2014

In this paper, a purity of 52.58% crude tea saponin as the research object, through the foam separation technology, tea saponin extraction process was researched. The feed concentration, gas flow rate, liquid volume and pH value were studied through single factor experiment, the rate of recovery and enrichment ratio as evaluation indexes, the single factor experiment results are analyzed, The design of L9 (34) orthogonal test was applied to confirm the optimum condition: the initial feed solution concentration 0.3mg/ml, air velocity 100ml/min, pH value of 6.5, liquid volume 35ml, enrichment ratio of 3.7896, the recovery rate 82.06%. The purity of the product reached 89.48% under the optimal operation conditions. The results showed that the foam separation techniques is applicable to tea saponin extraction. © (2014) Trans Tech Publications, Switzerland.

A novel method has been developed for the determination of methimazole, which was based on the enhanced electrochemical response of methimazole at the acetylene black/chitosan composite film modified glassy carbon electrode. The electrochemical behavior of methimazole was studied at this film electrode by cyclic voltammetry and differential pulse voltammetry. The experimental results showed that methimazole exhibited a remarkable oxidation peak at 0.63V at the film electrode. Compared with the bare glassy carbon electrode, the oxidation peak current increased greatly, and the peak potential shifted negatively, which indicated that the acetylene black/chitosan film electrode had good catalysis to the electrochemical oxidation of methimazole. The enhanced oxidation current of methimazole was indebted to the nano-porus structure of the composite film and the enlarged effective electrode area. The influences of some experimental conditions on the oxidation of methimazole were tested and the calibration plot was examined. The results indicated that the differential pulse response of methimazole was linear with its concentration in the range of 1.0×10 -7 to 2.0×10 -5mol/L with a linear coefficient of 0.998, and in the range of 4.0×10 -5 to 3.0×10 -4mol/L with a linear coefficient of 0.993. The detection limit was 2.0×10 -8mol/L (S/N=3). The film electrode was used to detect the content of methimazole in rat serum samples by the standard addition method with satisfactory results. © 2011 Elsevier B.V.

Jiangang Y.,Jianghan University
Strojniski Vestnik/Journal of Mechanical Engineering | Year: 2015

The step response for hydraulic automatic gauge control (HAGC) determines the steel rolling speed and the steel sheet thickness in the process of rolling production. In this paper, the step response test process of HAGC was analysed, and a test approach was proposed for it. Based on that, the transfer function model of the step response test was established and simulated by using Matlab. In order to reduce the settling time and the overshoot, an adaptive proportional-integral-derivative (APID) link was presented in order to compensate for the input signal by using back propagation neural networks (BPNN). The experimental results show that the improved step response test model reaches the process requirements of HAGC, eliminates the jitter of the HAGC system at the start-up phase, and has better stability as well as faster response for steel sheet rolling. © 2015 Journal of Mechanical Engineering. All rights reserved.

Jun T.,Jianghan University
Kybernetes | Year: 2012

Purpose: The purpose of this paper is to resolve the problem of 3D modelling of small objects lacking or without real texture, using an automatic, practical, convenient and effective method. Design/methodology/approach: For each space feature point projected on the surface of the target small object, there are two corresponding 2D points existing. One is an image point in one of the image sequences from the digital camera; another is a point in the slide from the projector. Using the image processing method, the image point can be extracted out accurately so that its 2D coordinates are gained. At the same time, the slide point is designed first so that its 2D coordinates are calculated by the known data. The 3D coordinates of the space feature point can be computed by the space forward intersection. Findings: The projector-camera system is composed of a slide projector, a digital camera, a control ground, and a computer. The computer controls the other three pieces of equipment, working together automatically and efficiently. Research limitations/implications: According to the size of the grid, the target object is relatively small. The planar grid is functioned as the calibration of the slide projector and the digital camera. Practical implications: The paper presents a very effective approach for 3D reconstruction of small objects. Originality/value: According to the traditional method of the digital camera taking images, the projector is steered so that the projector-camera system is formed. After being calibrated, respectively, in advance, the projector-camera system is similar to the binocular vision system in the principle of 3D modelling. © Emerald Group Publishing Limited.

Peng H.,Jianghan University
International Journal of Advanced Manufacturing Technology | Year: 2012

The quality loss function developed by Taguchi provides a monetary measure for the deviation of the product quality characteristic from the target value. Product use causes degradation on its quality characteristic, and since such a deviation can be changing over time, so can the quality loss. However, most studies on concurrent tolerancing theory do not consider the quality loss caused by the degradation. In this paper, the present worth of expected quality loss expressed as the function of the pertinent process tolerances in a concurrent tolerancing environment is derived to capture the quality loss due to product degradation over time as a continuous cash flow function under continuous compounding. A new tolerance optimization model, which is to minimize the summation of manufacturing cost and the present worth of expected quality loss, is established to realize the concurrent tolerance allocation for products with multiple quality characteristics. An example of the bevel gear assembly involving concurrent allocation of design and process tolerances is given, demonstrating that the proposed model is feasible in practice. © Springer-Verlag London Limited 2011.

The electrochemistry of uric acid at a gold electrode modified with a self-assembled film of L-cysteine was studied by cyclic voltammetry and differential pulse voltammetry. Compared to the bare gold electrode, uric acid showed better electrochemical response in that the anodic peak current is stronger and the peak potential is negatively shifted by about 100 mV. The effects of experimental conditions on the oxidation of uric acid were tested and a calibration plot was established. The differential pulse response to uric acid is linear in the concentration range from 1.0 × 10-6 to ~ 1.0 × 10-4 mol·L-1 (r = 0.9995) and from 1.0 × 10-4 to ~ 5.0 × 10-4 mol·L-1 (r = 0.9990), the detection limit being 1.0 × 10-7 mol·L-1 (at S/N = 3). The high sensitivity and good selectivity of the electrode was demonstrated by its practical application to the determination of uric acid in urine samples. © 2010 Springer-Verlag.

Loading Jianghan University collaborators
Loading Jianghan University collaborators