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A novel process for sorting fine-sized sulphide minerals by biocoagulation

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中国有色金属学会会刊：英文版 2008年第6期18卷 1473-1479页

作者： H. Z. KUYUMCU j. PINKA t. BIELIG Department of Mechanical Process Engineering and Solids Processing Technical University of Berlin Sekr. BH 11 Strasse des 17. Juni 135 10623 Berlin Germany

基于一个过程设计想法，在柏林的技术大学的调查证实微生物的 biocoagulation 和稳固的粒子将是一个新方法产生对排序合适的更粗糙的粒子。微生物的选择 biocoagulation 的过程，分别地例如酵母喜欢 Saccharomyces cerevisiae 和 Yarrow... 详细信息

基于一个过程设计想法，在柏林的技术大学的调查证实微生物的 biocoagulation 和稳固的粒子将是一个新方法产生对排序合适的更粗糙的粒子。微生物的选择 biocoagulation 的过程，分别地例如酵母喜欢 Saccharomyces cerevisiae 和 Yarrowia lipolytica，并且例如象方铅矿和闪锌矿一样的矿物质，微分散固体作为一个新奇排序过程的一个基础被分析了。因此，特别微生物的房间表面的特征例如静电的费用和细胞外的聚合物质的作文，以及他们对选择 biocoagulation 的影响被学习。在 10 m 下面的微生物和硫醚粒子有效地凝结的试验性的调查表演。而且，筹款对有选择地形成的 biocoagulates 的分离合适。与设计的列筹款，令人满意的恢复率被到达。

关键词：硫矿拣选生物凝固微生物

Corrections to the scaling of the second-order structure function in isotropic turbulence

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Acta Mechanica Sinica 2010年第2期26卷 151-157页

作者： Le Fang Wouter j. t. Bos Xiaozhou Zhou Liang Shao j.an-Pierre Bertoglio Laboratoire de Mecanique des Fluides et d'Acoustique Universit6 de Lyon Ecole centrale de Lyon 69134 Ecully France Department of Mechanical Engineering Center for Biomedical Engineering Research University of Delaware 126 Spencer Laboratory Newark DE 19716 USA

the approach of Obukhov assuming a constant skewness was used to obtain analytical corrections to the scaling of the second order structure function, starting from Kolmogorov＇s 4/5 law. these corrections can be used in model applications in which explicit expressions, rather than numerical solutions are needed. the comparison with an interpolation formula proposed by Batchelor, showed that the latter gives surprisingly precise results. the modification of the same method to obtain analytical corrections to the scaling law, taking into account the possible corrections induced by intermittency, is also proposed.

关键词： Scaling law · Structure function ·Isotropic turbulence

StUDY ON DIFFUSION WELDING OF ALUMINIUN MAtRIX COMPOSItE

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Acta Metallurgica Sinica(English Letters) 2000年第1期13卷 12-17页

作者： j. t. Niu L. M. Liu j. P. Zhai j. Yu X. M. Zhang (National Key Laboratory of Advanced Welding Production technology, HIt, Harbin 750001, China)

Effects of diffusion welding parameters on strength of welded j.int based on particle reinforced alumini- um matrix composite Al2O3p/6061Al were studied by comparing with aluminium matrix alloy,Mecha- nism for the loss of j.int strength was *** was pointed out that the key processing parameters affecting the strength of j.int was the welding *** high quality j.int can be successfully obtained with appropriate diffusion welding parameters.

关键词： particle reinforced aluminium matrix composite,diffusion welding oxide film

AGE StRENGtHENING OF DIFFUSION WELDED j.INt OF Al_2O_(3p)/6061Al COMPOSItE

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Acta Metallurgica Sinica(English Letters) 2000年第1期13卷 18-22页

作者： j. t. Niu Y. H. tian B. Y. Li j. j. Xu L.M. Liu (National Key Laboratory of Advanced welding Production technology, HIt, Harbin 150001, China)

tensile strength of diffusion welded j.int of aluminum matrix composite is very low due to its poor weld- *** this paper, solution and age treatments were conducted on the welded j.int of Al2O3p/ 6061Al composite subj.cted to diffusion welding using Gleeble 1500 machine, and ensile strength and microstructure of welded j.int aged at175℃ were measured and analyzed respectively, Results showed that aging precipitation of welded j.int is promoted effectively because of redistribution of reinforcement and a few number of dislocations in the matrix of weld zone resulting from welding pressure,and hence tensile strength of welded j.int is increased significantly after aging treatment.

关键词： aluminum matrix composite diffusion welding aging

GEANt4 simulation of gamma ray in a double-gap resistive plate chamber

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Chinese Physics B 2006年第1期15卷 108-115页

作者： j. t. Rhee M. j.mil Steve Hall Y. j. j.on Institute for Advanced Physics Physics Department Konkuk University Seoul 143-701 Korea School of Science and Engineering Ballarat University Ballarat Victoria 3353 Australia Department of Chemistry Konkuk University Seoul 143-701 Korea

For more than 20 years nuclear physicists have used the GEANt code to simulate particle-matter interaction. In most recent version, GEANt4 is a toolkit for simulating the passage of particles though matter, which contains a complete range of functionality including tracking, geometry, physics models, and hits. In this article, an attempt to use GEANt4 to model a double-gap resistive plate chamber （RPC） with its improved efficiency is presented. the efficiencies of the double-gap RPC have been evaluated as a function of gamma energy range 0.005-1000MeV. A comparison to available previous simulation package GEANt3 data is also performed.

关键词： GEANt4 Monte Carlo simulation efficiency resistive plate chamber

Characterization of multilayers and their interlayers： applicationto Co-based systems

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Chinese Optics Letters 2013年第13期11卷 137-140页

作者： P. j.nnard Z.-S. Wang j.-t. Zhu C. Meny j.-M. Andre M.-H. Hu K. Le Guen Laboratoire de Chimie Physique-Matiere Rayonnement UPMC Univ Paris 06 CNRS UMR 7614 11 rue Pierre et Maxie Curie F-75231 Paris cedex 05 France MOE Key Laboratory of Advanced Micro-Structured Materials Institute of PrecisionOptical Engineering Department of Physics Tongji University Shanghai 200092 China Institut de Physique et Chimie des Materiaux de Strasbourg CNRS UMR 7504 23 rue du Loess BP 43 F-67034 Strasbourg cedex 2 France

We use complementary analysis techniques to determine the structure of nanometric periodic multilayers and particularly their interfaces. We focus on Co-based multilayer which can be used as efficient optical component in the extreme ultraviolet （EUV） range. the samples are characterized using reflectivity measurements in order to determine the thickness and roughness of the various layers, X-ray emission and nuclear magnetic resonance （NMR） spectroscopies to identify the chemical state of the atoms present within the stack and know if they interdiffuse. Results are validated through the use of destructive techniques such as transmission electron microscopy or secondary ion mass spectrometry.

关键词： Multilayers

tahcoRoll: fast genomic signature profiling viathinned automaton and rolling hash

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Medical Review 2021年第2期1卷 114-125页

作者： Chelsea j.-t.j. j.un-Yu j.ang Ruirui Li Zeyu Li Wei Wang Department of omputer Science University of CaliforniaLos AngelesUSA

Obj.ctives:Genomic signatures like k-mers have become one of the most prominent approaches to describe genomic *** a result,myriad real-world applications,such as the construction of de Bruij. graphs in genome assembly,have been benefited by recognizing genomic *** other words,an efficient approachof genomic signatureprofiling is an essential need for tackling high-throughput sequencing ***,most of the existing approaches only recognize fixed-size k-merswhile many research studies have shown the importance of considering variable-length ***:In this paper,we present a novel genomic signature profiling approach,tahcoRoll,by extending the Aho–Corasick algorithm(AC)for the task of profiling variable-length *** first group nucleotides into two clusters and represent each cluster with a *** rolling hash technique is further utilized to encode signatures and read patterns for efficient ***:In extensive experiments,tahcoRoll significantly outperforms the most state-of-the-art k-mer counters and has the capability of processing reads across different sequencing platforms on a budget desktop ***:the single-thread version of tahcoRoll is as efficient as the eight-thread version of the state-of-the-art,j.llyFish,while the eight-thread tahcoRoll outperforms the eight-thread j.llyFish by at least four times.

关键词： Aho-Corasick algorithm genome sequencing k-mers multiple pattern matching rolling hash.

INStABILItY OF HAGEN-POISEUILLE FLOW FOR NON-AXISYMMEtRIC MODE

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Applied Mathematics and Mechanics(English Edition) 1989年第5期10卷 407-417页

作者：王发民 j. t. Stuart (F. R. S.) Institute of Mech. Academia Sinica Beijing Imperial College U. K.

An investigation is described for instability problem of flow through a pipe of circular cross section. As a disturbance motion, we consider a general non-axisym-metric mode. An associated amplitude or modulation equation has been derived for this disturbance motion. this equation belongs to a diffusion *** coefficient of it can be negative while Reynolds number increases, because of the complex interaction between molecular diffusion and convection. the negative diffusivity, when it occurs, causes a concentration and focussing of energy within decaying slugs, acting as a role of reversing natural decays.

关键词： INStABILItY OF HAGEN-POISEUILLE FLOW FOR NON-AXISYMMEtRIC MODE

Colour Removal from Aqueous Solutions of the Reactive Azo Dye Remazol Black B Using the Immobilised Cells (Shewanella Strain j.8 143) –***-Monomer System

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j.urnal of Water Resource and Protection 2010年第1期2卷 77-84页

作者： t. LI j. t. GUtHRIE 不详

Consideration is given here to colour removal, carried out using immobilised biological cells, Shewanella strain j.8 143. In order to provide greater control of an overall colour removal process and to give a basis for the effective recovery of the cell culture species, cell immobilisation has been established on chemically modified cellulose. the modification was achieved by chemically inducing the graft copolymerisation of methacrylic acid onto cotton fabric. the immobilised cells were able to decolorise the dye. the immobilisation methods, physical adsorption, “growing-in” and chemical coupling, were compared. Each of the methods was effective to some extent. However, the latter two immobilisation methods provided the greater effect in decoloration. Each of these immobilised systems is relatively simple to achieve, whether by adsorption, physical interlocking or covalent coupling. the graft copolymer is able to offer versatility in use. the decoloration was shown to be rapid under relatively simple processing conditions. thus, compared with the established controls, complete decoloration of solutions of Remazol Black B was observed. the potential use of the graft copolymer substrate as support for a biochemical agent was confirmed.

关键词： Reactive Azo Dyes Colour Removal Immobilisation Immobilised Cells