Zhengzhou, China

Zhengzhou University of Light Industry is a public university located in Zhengzhou, Henan, People's Republic of China.Address: 5 DongFeng Road, Zhengzhou, Henan province, P.R.China , Post Code: 450002Founded in 1977, Zhengzhou University of Light Industry was administered successively by the Ministry of Light Industry, the National Council of Light Industry, and the State Economic and Trade Commission until it was transferred to Henan Province as an institution co-administered by the central and local authorities in 1998. Presently it has evolved into a multi-disciplinary engineering focused university promoting coordinated development of other disciplines such as science, Liberal arts, Economics, Management, Law and Pedagogy.The University has accelerated its development at a breathtaking pace by educational reform and innovation, holding the educational philosophy of “putting students first, dedication to learning, improving the quality of teaching and serving society,” and acting on the university motto of “nothing is too difficult for the willing mind”. Consisting of 15 colleges or departments, ZZULI offers 47 undergraduate programs, 26 master programs and 2 programs in the Master of Engineering. It is also authorized to award Master’s Degrees to the applicants with the equivalent education of the postgraduates. At present, the enrollment of students has exceeded 15,000, which includes the undergraduates and postgraduates. Wikipedia.

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Peng D.L.,Zhengzhou University of Light Industry
Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya | Year: 2017

Two Mo(VI) aroylhydrazone complexes, cis-[MoO2(L1)(CH3OH)] (I) and cis-[MoO2(L2)(CH3OH)] (II), derived from 2-bromo-N'-(3,5-dibromo-2-hydroxybenzylidene)benzohydrazide (H2L1) and 2-bromo-N'-(2-hydroxy-4-methoxybenzylidene)benzohydrazide (H2L2), respectively, are reported. The complexes were characterized by elemental analyses, infrared and electronic spectroscopy, and single crystal structure analysis (CIF files CCDC nos. 1443679 (I) and 1443678 (II)). The Mo atoms are coordinated by two cis terminal oxygen, ONO from the aroylhydrazone ligand, and methanol oxygen. Complex I crystallized as monoclinic space group P21/c with unit cell dimensions a = 8.075(2), b = 13.905(1), c = 16.448(1) Å, β = 91.282(2)°, V = 1846.5(4) Å3, Z = 4, R1 = 0.0859, wR2 = 0.2066. Complex II crystallized as triclinic space group P1 ¯ , with unit cell dimensions a = 8.0824(6), b = 10.5919(8), c = 10.7697(8), α = 96.432(2)°, β = 97.438(2)°, γ = 103.119(2)°, V = 880.8(1) Å3, Z = 2, R1 = 0.0271, wR2 = 0.0571. The complexes were tested as catalyst for the oxidation of olefins and showed effective activity. © 2017, Pleiades Publishing, Ltd.

Xu C.,Zhengzhou University of Light Industry | Arancon R.A.D.,University of Cordoba, Spain | Arancon R.A.D.,City University of Hong Kong | Labidi J.,University of the Basque Country | Luque R.,University of Cordoba, Spain
Chemical Society Reviews | Year: 2014

Research on lignin deconstruction has recently become the center of interest for scientists and companies worldwide, racing towards harvesting fossil-fuel like aromatic compounds which are so durably put together by plants as products of millions of years of evolution. The natural complexity and high stability of lignin bonds (also as an evolutionary adaptation by plants) makes lignin depolymerization a highly challenging task. Several efforts have been directed towards a more profound understanding of the structure and composition of lignin in order to devise pathways to break down the biopolymer into useful compounds. The present contribution aims to provide an overview of key advances in the field of lignin depolymerisation. Protocols and technologies will be discussed as well as critically evaluated in terms of possibilities and potential for further industrial implementation. © the Partner Organisations 2014.

Du M.,Tianjin Normal University | Li C.-P.,Tianjin Normal University | Chen M.,Zhengzhou University of Light Industry | Ge Z.-W.,Tianjin Normal University | And 3 more authors.
Journal of the American Chemical Society | Year: 2014

Selective adsorption and separation of CO2 are of great importance for different target applications. Metal-organic frameworks (MOFs) represent a promising class of porous materials for this purpose. Here we present a unique MOF material, [Cu(tba)2]n (tba = 4-(1H-1,2,4-triazol-1-yl)benzoate), which shows high CO2 adsorption selectivity over CH4/H2/O2/Ar/N2 gases (with IAST selectivity of 41-68 at 273 K and 33-51 at 293 K). By using a critical point dryer, the CO2 molecules can be well sealed in the 1D channels of [Cu(tba)2]n to allow a single-crystal X-ray analysis, which reveals the presence of not only Cδ+- H···Oδ- bonds between the host framework and CO2 but also quadrupole-quadrupole (CO2 δ-···δ+CO2) interactions between the CO2 molecules. Furthermore, [Cu(tba) 2]n will suffer divergent kinetic and thermodynamic hydration processes to form its isostructural hydrate {[Cu(tba) 2](H2O)}n and a mononuclear complex [Cu(tba)2(H2O)4] via single-crystal to single-crystal transformations. © 2014 American Chemical Society.

Du M.,Tianjin Normal University | Li C.-P.,Tianjin Normal University | Liu C.-S.,Zhengzhou University of Light Industry | Fang S.-M.,Zhengzhou University of Light Industry
Coordination Chemistry Reviews | Year: 2013

The rational construction of coordination polymers (CPs), normally existing as infinite crystalline lattices extended from inorganic vertices and organic struts, essentially benefits from the development of crystal engineering strategies. In this review, we summarily comment on the key advances in the design of CPs using mixed-ligand synthetic strategy and discuss the relationship between the specifically selected mixed organic ligands and the resulting CPs. Significantly, fine tuning on the structural features of organic ligands, such as spacers, positional isomers, and substituents, can lead to a delicate regulation of the diverse network structures of CPs. Additionally, such mixed-ligand coordination assemblies may also be heavily affected by metal ion, synthetic route, and some other external stimuli such as solvent and pH condition, etc. The advantages of mixed-ligand systems as promising approaches to construct CPs-based crystalline materials with interesting structures and useful properties will also be demonstrated. © 2012 Elsevier B.V.

Diez-Pascual A.M.,CSIC - Institute of Polymer Science and Technology | Xu C.,Zhengzhou University of Light Industry | Luque R.,University of Cordoba, Spain
Journal of Materials Chemistry B | Year: 2014

Novel poly(ether ether ketone) (PEEK) based nanocomposites with different contents of ZnO nanoparticles were prepared via cryogenic ball-milling followed by compression moulding. The nanoparticles were treated with a silane coupling agent to improve their dispersion and interfacial adhesion with the matrix. The morphology, thermal, mechanical, tribological and antibacterial properties of nanocomposites with raw and modified ZnO were comparatively investigated. A progressive rise in the thermal stability and flame retardant ability was found with increasing ZnO loading, the improvements being more pronounced for composites incorporating the coupling agent. The addition of small ZnO contents raised the crystallization temperature and the degree of crystallinity of PEEK, while at higher concentrations the nanoparticles confined the mobility of the polymer chains, hindering the crystal growth. Composites with silane-treated ZnO displayed superior stiffness, strength, ductility, toughness and glass transition temperature with reduced coefficient of friction and wear rate compared to the neat polymer and samples with bare nanoparticles. At a critical concentration of 5.0 wt% of functionalized ZnO, the tensile strength, Young's and storage moduli showed a maximum that coincided with the highest crystallinity and the minimum in the tribological properties. The antibacterial activity against Escherichia coli and Staphylococcus aureus was enhanced with increasing ZnO content, and the best antibacterial property was obtained with 7.5 wt% of modified nanoparticles. © 2014 the Partner Organisations.

Xing L.F.,Zhengzhou University of Light Industry
Astrophysical Journal | Year: 2010

We present high-resolution spectroscopic observations for a sample of 19 weak-line T Tauri stars (WTTSs). Based on these observations and data of 108 WTTSs taken from the literature, we derive lithium abundances for 127 WTTSs. Investigation of a possible relation between lithium and rotation in WTTSs shows that: (1) rapidly rotating WTTSs have comparatively lower lithium abundances than their slower rotating counterparts; (2) in the spectral-type range G0-K0, most of the WTTSs share the same Li content irrespective of their T eff; and (3) active late-type binaries do not obey the correlation between lithium abundances and rotation periods, since the tidally locked rotation of the late-type binary system leads naturally to slower lithium destruction rates. © 2010. The American Astronomical Society. A.

Ran Z.,Zhengzhou University of Light Industry
Proceedings - 2012 International Conference on Computer Science and Service System, CSSS 2012 | Year: 2012

With the rapid development of computer network and applications, attacks are becoming more and more complicated and elusive. The traditional intrusion detection systems have been unable to meet new security requirements. This paper proposes a collaborative intrusion detection model based on multi-agents. In this model, four kinds of agents are defined, which are organized in a hierarchical structure. The basic agents in every host or at the entrances of subnets are responsible for performing the simple detection and response tasks. The complicated collaboration task is executed by some separate coordination agents, which are responsible for synthetically analyzing the suspicious behavior that the lower-level agents are unable to identify. Coordination agents are also able to assign the task to the lower-level associated agents. Based on the hierarchical structure, the formal description of the model is given. By adaptive policies and dynamic association among some elements, this model provides dynamic adaptability to the changing environment and attacks. In addition, this paper also proposes the concept of coordination domain which facilitates the management of collaborative detection. The model lays a theoretical foundation for constructing dynamically adaptive intrusion detection system. © 2012 IEEE.

Wu S.,Zhengzhou University of Light Industry
Journal of Alloys and Compounds | Year: 2014

A novel AB5-alloy oxide/graphene composite has been fabricated through a facile mixing of commercial oxidized AB5-alloy and graphene as anode materials for lithium ion batteries. Electrochemical measurements show that the composite delivers an initial discharge capacity of 1639.7 mAh g -1 and maintains a high reversible capacity of 418.2 mAh g -1 up to 180 cycles. The enhanced cycling stability could be attributed to the fact that AB5-alloy oxide/graphene composite can accommodate large volume change during cycling and maintain good electronic contact. © 2013 Elsevier B.V. All rights reserved.

Zhu X.-L.,Zhengzhou University of Light Industry | Wang Y.,Nanyang Technological University
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics | Year: 2011

This paper studies the problem of stabilization for sampled-data neural-network-based control systems with an optimal guaranteed cost. Unlike previous works, the resulting closed-loop system with variable uncertain sampling cannot simply be regarded as an ordinary continuous-time system with a fast-varying delay in the state. By defining a novel piecewise Lyapunov functional and using a convex combination technique, the characteristic of sampled-data systems is captured. A new delay-dependent stabilization criterion is established in terms of linear matrix inequalities such that the maximal sampling interval and the minimal guaranteed cost control performance can be obtained. It is shown that the newly proposed approach can lead to less conservative and less complex results than the existing ones. Application examples are given to illustrate the effectiveness and the benefits of the proposed method. © 2010 IEEE.

Jin Q.,CAS Beijing National Laboratory for Molecular | Jin Q.,Zhengzhou University of Light Industry | Zhang L.,CAS Beijing National Laboratory for Molecular | Liu M.,CAS Beijing National Laboratory for Molecular
Chemistry - A European Journal | Year: 2013

The self-assembly of a low-molecular-weight organogelator into various hierarchical structures has been achieved for a pyridylpyrazole linked L-glutamide amphiphile in different solvents. Upon gel formation, supramolecular chirality was observed, which exhibited an obvious dependence on the polarity of the solvent. Positive supramolecular chirality was obtained in nonpolar solvents, whereas it was inverted into negative supramolecular chirality in polar solvents. Moreover, the gelator molecules self-assembled into a diverse array of nanostructures over a wide scale range, from nanofibers to nanotubes and microtubes, depending on the solvent polarity. Such morphological changes could even occur for the xerogels in the solvent vapors. We found that the interactions between the pyridylpyrazole headgroups and the solvents could subtly change the stacking of the molecules and, hence, their self-assembled nanostructures. This work exemplifies that organic solvents can significantly involve the gelation, as well as tune the structure and properties, of a gel. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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