Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 101 )

2018 ( 719 )

2017 ( 670 )

2016 ( 654 )

Custom range...

Search Results: 1 - 10 of 44901 matches for " Zhou Qiang "
All listed articles are free for downloading (OA Articles)
Page 1 /44901
Display every page Item
Template-Monomer Interaction in Molecular Imprinting: Is the Strongest the Best?  [PDF]
Xuewen Fu, Qiang Yang, Qiang Zhou, Qiang Lin, Chun Wang
Open Journal of Organic Polymer Materials (OJOPM) , 2015, DOI: 10.4236/ojopm.2015.52007
Abstract: Molecularly imprinted polymers (MIPs) represent a new class of materials possessing high selectivity and affinity for the target molecule. They have been utilized as sensors, catalysts, sorbents for solid-phase extraction, stationary phase for liquid chromatography, mimics of enzymes, receptors, and antibodies. In this research, molecular imprinted polymers (MIPs) for luteolin were prepared using acrylamide, 4-vinylpyridine and 1-allyl-piperazine as functional monomers and ethylene glycol dimethacrylate as cross-linker by non-covalent imprinting method. UV-visible spectra were used to evaluate the interaction strength between the template and the monomers. The composites of the polymers were calculated from elementary analysis. The porous properties of the imprinted polymers have been determined from nitrogen adsorption-desorption isotherms. The imprinting efficiency of the prepared MIPs was evaluated by selective adsorption for luteolin and its structural analogues. Although the interaction strength of monomers to the template was in the order 1-ALPP > 4-VP > AA, the binding affinity of the imprinted polymers towards luteolin was in the order MIP 2 > MIP 3 > MIP 1. Our results demonstrated that the imprinting efficiency was depending not only on the interaction strength between the template and the monomer, but also on the fidelity in transferring the complex into the polymer.
Computation and Analysis of Propellant and Levitation Forces of a Maglev System Using FEM Coupled to External Circuit Model  [PDF]
Shiyou Yang, Lin Yang, Qiang Zhou
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2010, DOI: 10.4236/jemaa.2010.24034
Abstract: This paper studies the propellant and levitation forces of a prototype maglev system where the propellant forces are provided by a linear motor system. For this purpose, the mathematical model and method using finite element method coupled to external circuit model is developed. The details of the propellant and levitation forces for a prototype maglev system under different operating conditions are investigated, and some directions are given for practical engineering applications.
Environmental, genetic and cellular toxicity of tenuazonic acid isolated from Alternaira alternata
B Zhou, S Qiang
African Journal of Biotechnology , 2008,
Abstract: Alternaria alternata, an important pathogen of many plants, produces tenuazonic acid (TeA) with bioactivity to microbes, plants and animals. TeA is one of the main mycotoxin to humans and other organisms. Using Chlamydomonas reinhardtii, Vicia faba root tip and three mammalian normal cell lines as target materials, environmental toxicity, genetic toxicity and cytotoxicity of TeA were examined. The growth and chlorophyll concentration of C. reinhardtii were inhibited at above 100 g/ml concentration, with EC50(G) of 310.36 g/ml and EC50(Chl) of 294.27 g/ml. The micronuleus test results indicated that MCN‰ was >15‰ only at higher concentrations. TeA inhibited the proliferation and total protein contents of 3T3 mouse fibroblasts (3T3 cells), Chinese hamster lung cells (CHL cells) and human hepatocytes (L-O2 cells) at concentrations ranging from 12.5 - 400 g/ml. Of the three cell lines, 3T3 cells were the most sensitive to the toxin (EC50(24h) = 41.64 g/ml), followed by CHL cells (EC50(24h) = 59.33 g/ml), and L-O2 cells (EC50(24h) = 85.98 g/ml) had the lowest sensitivity.
Complex genetic algorithm in continuous space
Qiang Li,Ji Zhou
Chinese Science Bulletin , 1999, DOI: 10.1007/BF02885075
Abstract: A new artificial intelligent optimization method, complex genetic algorithm, is presented, and the theoretical analysis for the effective optima-seeking mechanism of the algorithm is finished. The example calculation proves that it is a successful and simple optimization method.
The structure and dynamics of the predatory arthropod communities in different resistant variety rice fields

ZHOU Qiang,

生态学报 , 1999,
Abstract: The structure and dynamics of the predatory arthropod communities were analyzed,in the paddy fields of various resistant rice varieties.The dominant predator species were massed when the resistance of variety was increased.Resistance of variety gave little effects to the structure of predatory communities.In paddy fields of medial resistant rice varieties,the coordination effects between resistant rice varieties and predator communities were found.Not only were the initial and total densities of predators higher than those of strong or susceptible varieties,but also the species diversity,abundance,and evennesses of predatory arthroped communities were tended to rise.
Implement RSS in WebPAC

Zhou Qiang,

现代图书情报技术 , 2005,
Abstract: This paper introduce the conception and purpose of RSS , and use the RSS to implement the syndication of the biblios resource of libraries in the WebPAC System.
Guest Editorial
Qihai Zhou,Qiang Liu
Journal of Software , 2010, DOI: 10.4304/jsw.5.1.1-2
Abstract: With the high development of Computer Science-Technology and Applications, Computer Science-Technology as one of IT’s mainstays has become one of the today’s main important key engines, and propels the progress of global science & technology and human society. As one of a person’s feet, software technology and applications play an important role in Computer Science-Technology and Applications. This Special Issue aims to show some academic researches on recent trends and advances in software technology and applications. “New Algorithm for Indefinite Multi-objective Decision Making Based on Multiple-valued Intuitive Fuzzy Set Theory” studies an indefinite multi-objective decision making which is an interesting and important application of software technology. “Software Prepromotion for Non-Uniform Cache Architecture” proposes software prepromotion technique, which prepromote data using prepromotion instructions as similar as software prefetching does. In “A Reliable Multicast Routing Protocol for High-speed Mobile Ad Hoc Networks: R-ODMRP”, with the exploration of active network, R-ODMRP constructed the multicast routing based on the cluster, established a distributed mechanism of the acknowledgment and recovery of packet delivery. “Remote Sensing Image Sequence Segmentation Based on the Modified Fuzzy C-means” presents a remote sensing image sequence segmentation method based on improved FCM algorithm.
Pairing mechanism for high temperature superconductivity in the cuprates: what can we learn from the two-dimensional t-J model?
Huan-Qiang Zhou
Physics , 2010,
Abstract: A possible pairing mechanism for high temperature superconductivity in the cuprates is discussed.
Deriving local order parameters from tensor network representations
Huan-Qiang Zhou
Physics , 2008,
Abstract: A large class of quantum phase transitions for quantum lattice systems are characterized by local order parameters. It is shown that local order parameters may be systematically constructed from tensor network representations of quantum many-body ground state wave functions by investigating the reduced density matrices for local areas on an infinite-size lattice. Depending on whether or not the system symmetries are spontaneously broken, and whether or not the ground state fidelity per lattice site is continuous, there are four categories of quantum phase transitions for systems with local order parameters. Quantum phase transitions characterized by nonlocal order parameters are discussed, aiming at better understanding quantum systems with topological order.
Renormalization group flows and quantum phase transitions: fidelity versus entanglement
Huan-Qiang Zhou
Physics , 2007,
Abstract: We compare the roles of fidelity and entanglement in characterizing renormalization group flows and quantum phase transitions. It turns out that the scaling parameter extracted from fidelity for different ground states succeeds to capture nontrivial information including stable and unstable fixed points, whereas the von Neumann entropy as a bipartite entanglement measure (or equivalently, majorization relations satisfied by the spectra of the reduced density matrix along renormalization group flows) often fails, as far as the intrinsic irreversibility-information loss along renormalization group flows-is concerned. We also clarify an intimate connection between the von Neumman entropy, majorization relations, and fidelity. The relevance to Zamolodchikov's c theorem is indicated.
Page 1 /44901
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.