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Statistical theory for hydrogen bonding fluid system of A_aD_d type (I): The geometrical phase transition

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science China Chemistry 2006年第6期49卷 499-506页

作者： WANG Haijun1.2. HONG Xiaozhong3, GU Fang1.& BA Xinwu1.1. {1. of Chemistry and Environment {1., Hebei {2., Baoding 071.02. China 2. International Center for Materials Physics, Chinese Academy of {1.s, Shenyang 1.001., China 3. {1. of Physics {1. and technology, Hebei {2., Baoding 071.02. China 1. college of Chemistry and Environment {1. Hebei University Baoding 071002 China 2. International Center for Materials Physics Chinese Academy of Sciences Shenyang 110016 China 3. college of Physics {1. and {2. Hebei University Baoding 071002 China

The influence of hydrogen bonds on the physical and chemical properties of hydrogen bonding fluid system of AaDd type is investigated from two viewpoints by the principle of statistical mechanics. In detail, we proposed two new ways that can be used to obtain the equilibrium size distribution of the hydrogen bonding clusters, and derived the analytical expression of a relationship between the hydrogen bonding free energy and hydrogen bonding degree. For the nonlinear hydrogen bonding systems, it is shown that the sol-gel phase transition can take place under proper conditions, which is further proven to be a kind of geometrical phase transition rather than a thermodynamic one. Moreover, several problems associated with the geometrical phase transition and liquid-solid phase transition in nonlinear hydrogen bonding systems are discussed.

关键词： hydrogen bonding fluid, equilibrium free energy, geometrical phase transition.

Element geochemistry and cleaning potential of the No. 1. coal seam from Antaibao mining district

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science China Earth sciences 2005年第12期48卷 2142-2154页

作者： WANG Wenfeng1. QIN Yong1. SONG Dangyu2. SANG Shuxun1. JIANG Bo1. ZHU Yanming1.& FU Xuehai1.1. {1. of Resources & Geo{1.s, China {2. of Mining and technology, Xuzhou 2.1.08, China 2. State Key Laboratory of Coal Combustion, Huazhong {2. of {1. and technology, Wuhan 430074, China 1. college of Resources & Geo{1.s China University of Mining and Technology 221008 Xuzhou China 2. State Key Laboratory of Coal Combustion Huazhong University of Science and Technology 430074 Wuhan China

Based on the analyses of sulfur and 41.other elements in 8 channel samples of the No. 1. coal seam from Antaibao surface mine, Shanxi, China and 4 samples from the coal preparation plant of this mine, the distribution of the elements in the seam profile, their geo-chemical partitioning behavior during the coal cleaning and the genetic relationships between the both are studied. The conclusions are drawn as follows. The coal-forming environment was probably invaded by sea water during the post-stage of peatification, which results in the fact that the contents of As, Fe, S, etc. associated closely with sea water tend to increase toward the top of the seam, and that the kaolinite changes into illite and montmorillonite in the coal-sublayer near the roof. These elements studied are dominantly associated with kaolinite, pyrite, illite, montmorillonite, etc., of which the As, Pb, Mn, Cs, Co, Ni, etc. are mainly associated with sulfides, the Mo, V, Nb, Hf, REEs, Ta etc. mainly with kaolintie, the Mg, Al etc. mainly with epigenetic montmorillonite, and the Rb, Cr, Ba, Cu, K, Hg, etc. mainly with epigenetic illite. The physical coal cleaning is not only effective in the removal of ash and sulfur, but also in reducing the concentra-tion of most major and trace elements. The elements Be, U, Sb, W, Br, Se, P, etc. are largely or partly organically bound showing a relatively low removability, while the removability of the other elements studied is more than 2.%, of which the Mg, Mn, Hg, Fe, As, K, Al, Cs, and Cr associ-ated mostly with the coarser or epigenetic minerals show a higher removability than that of ash. The distribution of the elements in the seam profile controls their partitioning behavior to a great degree during the coal cleaning processes.

关键词： Antaibao mining district, No.1. coal seam, element geochemistry, cleaning.

Microcosmic analysis of ductile shearing zones of coal seams of brittle deformation domain in superficial lithosphere

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science China Earth sciences 2004年第5期47卷 393-404页

作者： JU Yiwen1.2. WANG Guiliang2. JIANG Bo2.& HOU Quanlin1.1. Graduate School, Chinese Academy of sciences, {1. 1.0039, China 2. {2. of Mineral Resources and Geosciences, China university of Mining & technology, Xuzhou 2.1.08, China Chinese Acad Sci Grad Sch Beijing 100039 Peoples R China China Univ Min & Technol Coll Mineral Resources & Geosci Xuzhou 221008 Peoples R China

The ductile shearing zones of coal seams in a brittle deformation domain in super-ficial lithosphere are put forward based on the study on bedding shearing and ductile rheology of coal seams. The macrocosmic and microcosmic characteristics include wrinkle fold, mymonitized zones and ductile planar structure of coal seams, etc., while the microcosmic characteristics may also include different optic-axis fabrics and the anisotropy of vitrinite reflectance as well as the change of chemical structure and organic geochemistry components. The forming mechanism is analyzed and the strain environment of ductile shearing zones of coal seams discussed. The result indicates that, in the superficial brittle deformation domain, the coal seams are easy to be deformed, resulting in not only brittle deformation but also ductile shearing deformation under the action of force. Because of simple shearing stress, the interlayer gliding or ductile rheology may take place between coal seams and wall rocks. Therefore, many ductile shearing zones come into being in superficial lithosphere (<5 km). The research on ductile shearing zone of brittle de-formation domain in superficial lithosphere is significant not only theoretically for the study of ductile shearing and ductile rheology of the lithosphere but also practically for the structural movement of coal seams, the formation and accumulation of coal-bed methane, and the preven-tion and harness of gas burst in coal mine.

关键词： brittle deformation domain, interlayer gliding, ductile rheology, ductile shearing zones of coal seams, coal mymonite, vitrinite reflectance anisotropy.

Final Temperature Prediction Model of Molten Steel in RH-TOP Refining Process for IF Steel Production

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Journal of Iron and Steel Research International 2012年第3期19卷 1-5页

作者： WANG Yu-nan1. BAO Yan-ping1. CUI Heng2. CHEN Bin3, JI Chen-xi3 (1. State Key Laboratory of Advanced Metallurgy, {1. of {1. and {2. beijing, beijing 1.0083, China 2. Engineering Research Institute, {1. of {1. and {2. beijing, beijing 1.0083, China 3. Shougang Research Institute of {2., beijing 1.0041. China) [a] State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Beijing 100083 China [b] Engineering Research Institute University of Science and Technology Beijing Beijing 100083 China [c] Shougang Research Institute of technology Beijing 100041 China

In order to precisely control the final temperature of molten steel in RH （Ruhrstahl Heraeus）-TOP blowing refining, the final temperature prediction models of molten steel in RH-TOP blowing refining process for Interstitial Free （IF） steel production were established under the condition of oxygen blowing and non-oxygen blowing respec- tively. The results show that the beginning molten steel temperature of refining and the amount of added scrap were influential factors, the baking temperature in vacuum chamber was a factor that had small influence. When the model was operated, the hitting probability was above 95%（under the condition of both oxygen blowing and non-oxygen blo- wing） of prediction deviation ±1.℃. The accuracy is analyzed.

关键词： RH-TOP molten steel temperature prediction model

Degradation of 4-chlorophenol in aqueous solution by γ-radiation and ozone oxidation

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science China Chemistry 2006年第2期49卷 186-192页

作者： HU Jun1. WANG Jianlong1.2.& CHEN Rong1.1. Laboratory of Environmental {1., Institute of Nuclear Energy {1., Tsinghua {2., beijing 1.0084, China 2. State Key Joint Laboratory of Environmental Simulation and Pollution Control, Tsinghua {2., beijing 1.0084, China Correspondence should be addressed to Wang Jianlong 1. Laboratory of Environmental technology Institute of Nuclear Energy Technology Tsinghua University Beijing 100084 China 2. State Key Joint Laboratory of Environmental Simulation and Pollution Control Tsinghua University Beijing 100084 China

The degradation of 4-chlorophenol (4-CP) by using gamma rays generated by a 60Co source in the presence of O3 was investigated. The radiolysis of 4-CP and the kinetics of 4-CP min-eralization were analyzed based on the determination of total organic carbon (TOC). The influence of initial 4-CP concentration and the free radicals scavengers (such as NaHCO3 and t-butanol) on the 4-CP degradation was also studied. The results showed that when the radiation rate was 336 Gy·min?1. 4-chlorophenol at concentration of 1. mg·L?1.could be completely degraded at the radiation dose of 2.kGy. The degradation of 4-chlorophenol could be described by a first-order reaction model, the rate constant of 4-CP degradation by combined ozonation and radiation was 0.1.1. min?1. which was 2.4 times higher than the sum of radiation (0.02.4 min?1. and ozonation (0.01.7 min?1.. It re-vealed that the combination of radiation and ozonation resulted in synergistic effect, which can re-markably increase the degradation efficiency of 4-CP.

关键词： radiolysis, 4-chlorophenol, priority pollutant, degradation, O3, synergistic effect, kinetics.

The characteristics of arc beam shaping in hybrid plasma and laser deposition manufacturing

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science China(Technological sciences) 2006年第2期49卷 238-247页

作者： ZHANG Hai’ou1, QIAN Yingping1,3, WANG Guilan1 & ZHENG Qiguang2.1. School of Material science and {1., Huazhong {2. of science and {1., Wuhan 430074, China 2. Institute of Laser {1. and Engineering, Huazhong {2. of science and {1., Wuhan 430074, China 3. Mechanical Engineering college, Hubei {2. of {1., Wuhan 430068, China 1. School of Material science and {1. Huazhong University of Science and Technology Wuhan 430074 China 3. Mechanical Engineering college Hubei University of Technology Wuhan 430068 China 2. Institute of Laser {1. and Engineering Huazhong University of Science and Technology Wuhan 430074 China

As a new direct metal prototyping technology,the hybrid plasma and laser deposition manufacturing (PLDM) is proposed in this paper. In order to figure out the characteristics of plasma arc beam and mould in the PLDM process of high temperature alloy, the high speed CCD camera is used to obtain the picture around the plasma arc. Afterwards the sketch of picture is clearly obtained. And the effect of laser parameter, such as average power, pulse width, pulse repetition frequency and the angle between laser beam and plasma arc beam on the plasma arc appearance, is studied experimentally. The results show that the modality of plasma arc beam is markedly influenced by laser beam. And the improvements of shape precision and surface state of the layer deposited by PLDM are confirmed.

关键词： plasma hybrid laser, direct deposition, plasma arc beam, molding character, high-temperature alloy.

Magnetic Properties of NiCuZn Ferrite Thin Films Prepared by the Sol-gel Method

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Journal of Wuhan university of {1.(Materials {2.) 2007年第3期22卷 506-509页

作者：刘锋 Institute of Microelectronics Tsinghua University

Ni0.4Cu0.2.n0.4Fe2.4 thin films were fabricated on Si substrates by using the sol-gel method and rapid thermal annealing （RTA）, and their magnetic properties and crystalline structures were investigated. The samples calcined at and above 600 ℃ have a single-phase spinel structure and the average grain size of the sample calcined at 600 ℃ is about 2. nm. The initial permeability μi, saturation magnetization M and coercivity H of the samples increase with the increasing calcination temperature. The sample calcined at 600 ℃ exhibits an excellent soft magnetic performance, which has μi=33.97 （1. MHz）, Hc=1..62.Oe and Ms=2.8.877 emu/cm^3. Low-temperature annealing can enhance the magnetic properties of the samples. The work shows that using the sol-gel method in conjunction with RTA is a promising way to fabricate integrated thin-film devices.

关键词： Ni0.4Cu0.2.n0.4Fe2.4 thin films, sol-gel-method rapid thermal processing magnetic properties

Epistatic effect between ACACA and FABP2.gene on abdominal fat traits in broilers

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Journal of Genetics and Genomics 2010年第8期37卷 505-512页

作者： Guo Hu 1. Shouzhi Wang 1. Jianwei Tian, Lili Chu, Hui Li college of {1. {2. and technology, Northeast agricultural university, Harbin 1.0030, China [a] college of {1. {2. and technology Northeast Agricultural University Harbin 150030 China

Epistasis is generally defined as the interaction between two or more genes or their mRNA or protein products to influence a single trait. Experimental evidence suggested that epistasis could be important in the determination of the genetic architecture of complex traits in domestic animals. Acetyl-coenzyme A carboxylase alpha （ACACA） and fatty acid binding protein {1.（FABP{1. are both key factors of lipogenesis and transport. They may play a crucial role in the weight variability of abdominal adipose tissue in the growing chicken. In this study, the polymorphisms of c.{1.9{1.〉A in A CA CA and c.-561.〉C in FABP{1.were detected among individuals from two broiler lines which were divergently selected for abdominal fat content. Epistasis between the two SNPs on abdominal fat weight （AFW） and ab- dominal fat percentage （AFP） was analyzed. The additive x additive epistatic components between these two SNPs were found significant or suggestively significant on both AFW and AFP in lean lines of the 9th and 1.th generation; whereas, it was not significantly associated with either AFW or AFP in fat lines. At the same time, there were not any other significant epistatic components found in both generations or in both lines. Significant epistatic effects between these two SNPs found only in the lean lines could partly be due to the fact that the abdominal fat traits in these two experimental lines have been greatly modified by strong artificial selection. The results suggested that the epistasis mode may be different between the lean and fat chicken lines. Our results could be helpful in further understanding the genetic interaction between candidate genes contributing to phenotypic variation of abdominal fat content in broilers.

关键词： chicken fatness epistasis ACACA FABP2 QTL

Study on An Absolute Non-Collision Hash and Jumping Table IP Classification Algorithms

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Wuhan university Journal of Natural {1.s 2004年第5期9卷 835-838页

作者： SHANG Feng-jun 1.2.,PAN Ying-jun 1.1. Key Laboratory of Opto-Electronic {1. and System of Ministry of Education/{1. of Opto-Electronic Engineering,Chongqing {2., Chongqing 400044,China 2. {1. of Computer science and {1., Chongqing {2. of Posts and Telecommunications, Chongqing 400065,China Chongqing university Key Laboratory of Opto-Electronic Technology and System of Ministry of Education/College of Opto-Electronic Engineering Chongqing China (GRID:grid.190737.b) (ISNI:***) Chongqing university of Posts and Telecommunications College of Computer Science and Technology Chongqing China (GRID:grid.411587.e) (ISNI:***) Chongqing university Key Laboratory of Opto-Electronic Technology and System of Ministry of Education/College of Opto-Electronic Engineering Chongqing China (GRID:grid.190737.b) (ISNI:***)

In order to classify packet, we propose a novel IP classification based the non-collision hash and jumping table trie-tree (NHJTTT) algorithm, which is based on noncollision hash Trie-tree and Lakshman and Stiliadis proposing a 2.dimensional classification algorithm (LS algorithm). The core of algorithm consists of two parts: structure the non-collision hash function, which is constructed mainly based on destination/source port and protocol type field so that the hash function can avoid space explosion problem; introduce jumping table Trie-tree based LS algorithm in order to reduce time complexity. The test results show that the classification rate of NHJTTT algorithm is up to 1.million packets per second and the maximum memory consumed is 9 MB for 1. 000 rules. Key words IP classification - lookup algorithm - trie-tree - non-collision hash - jumping table CLC number TN 393.06 Foundation item: Supported by the Chongqing of Posts and Telecommunications Younger Teacher Fundation (A2.03-03).Biography: SHANG Feng-jun (1.72.), male, Ph.D. candidate, lecture, research direction: the smart instrument and network.

关键词： IP classification lookup algorithm trie-tree non-collision hash jumping table