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Phase stability of Ta-W alloys

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Acta Metallurgica Sinica(English Letters) 2010年第3期23卷 215-222页

作者： xiaobo li Ping ZHANG College of Civil Engineering and Mechanics Xiangtan University Xiangtan 411105 China Key Laboratory of Materials Design and Preparation Technology of Hunan Province Xiangtan University Xiangtan 411105 China

The characteristic crystal model is applied to the study of phase stability and thermodynamics in substitutional bcc-based Ta-W *** basic principle and method of alloy thermodynamics which is described by the characteristic crystal model is introduced in *** Gibbs energy of various phases including both disordered and ordered phases of the Ta-W system are *** phase diagram of Ta-W alloys is assessed and *** results are in good agreement with experiments and better than that of first principle.

关键词： Ta-W alloys Phase diagram Characteristic crystal model Thermodynamics Phase stability

Identification of metastasis-associated genes in colorectal cancer through an integrated genomic and transcriptomic analysis

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Chinese Journal of Cancer Research 2013年第6期25卷 623-636页

作者： xiaobo li Sihua Peng Department of Computer Science and Technology College of EngineeringLishui University School of Science and Technology Zhejiang International Studies University Department of Biological Technology School of Fisheries and Life ScienceShanghai Ocean University

Objective： Identification of colorectal cancer （CRC） metastasis genes is one of the most important issues in CRC research. For the purpose of mining CRC metastasis-associated genes, an integrated analysis of mJcroarray data was presented, by combined with evidence acquired from comparative genornic hybridization （CGH） data. Methods： Gene expression profile data of CRC samples were obtained at Gene Expression Omnibus （GEO） website. The 15 important chromosomal aberration sites detected by using CGH technology were used for integrated genomic and transcriptomic analysis. Significant Analysis of Microarray （SAM） was used to detect significantly differentially expressed genes across the whole genome. The overlapping genes were selected in their corresponding chromosomal aberration regions, and analyzed by using the Database for Annotation, Visualization and Integrated Discovery （DAVID）. Finally, SVM-T-RFE gene selection algorithm was applied to identify ted genes in CRC. Results： A minimum gene set was obtained with the minimum number [14] of genes, and the highest classification accuracy （100%） in both PRI and META datasets. A fraction of selected genes are associated with CRC or its metastasis. Conclusions- Our results demonstrated that integration analysis is an effective strategy for mining cancer- associated genes.

关键词： Colorectal cancer metastasis integrated analysis comparative genomic hybridization (CGH) Significant Analysis of Microarray (SAM) Database for Annotation, Visualization and Integrated Discovery(DAVID) SVM-T-RFE gene selection algorithm

Dissipative particle dynamics simulation of wettability alternation phenomena in the chemical flooding process

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Acta Mechanica Sinica 2009年第5期25卷 583-587页

作者： xiaobo li Yuewu liu Jianfei Tang Shujiao li DES Institute of Mechanics Chinese Academy of Sciences 100190 Beijing China Top-well Services Inc. 100101 Beijing China Greatwall Drilling Company 100101 Beijing China

Wettability alternation phenomena is considered one of the most important enhanced oil recovery （EOR） mechanisms in the chemical flooding process and induced by the adsorption of surfactant on the rock surface. These phenomena are studied by a mesoscopic method named as dissipative particle dynamics （DPD）. Both the alteration phenomena of water-wet to oil-wet and that of oil-wet to water-wet are simulated based on reasonable definition of interaction parameters between beads. The wetting hysteresis phenomenon and the process of oil-drops detachment from rock surfaces with different wettability are simulated by adding long-range external forces on the fluid particles. The simulation results show that, the oil drop is liable to spread on the oil-wetting surface and move in the form of liquid film flow, whereas it is likely to move as a whole on the waterwetting surface. There are the same phenomena occuring in wettability-alternated cases. The results also show that DPD method provides a feasible approach to the problems of seepage flow with physicochemical phenomena and can be used to study the mechanism of EOR of chemical flooding.

关键词： Wettability alternation Dissipative particledynamics - Enhanced oil recovery Chemical flooding -Mesoscopic mechanics

Inattentiveness in attention-deficit/hyperactivity disorder

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Neuroscience Bulletin 2013年第1期29卷 103-110页

作者： Ariane Sroubek Mary Kelly xiaobo li Ferkauf Graduate School of Psychology at Yeshiva University Department of Pediatrics and Behavioral Sciences at Albert Einstein College of Medicine Yeshiva University Gruss Magnetic Resonance Research Center and Behavioral Sciences at Albert Einstein College of Medicine Yeshiva University Department of Radiology and Behavioral Sciences at Albert Einstein College of Medicine Yeshiva University Department of Neuroscience and Behavioral Sciences at Albert Einstein College of Medicine Yeshiva University Department of Psychiatry and Behavioral Sciences at Albert Einstein College of Medicine Yeshiva University

Attention-deficit/hyperactivity disorder （ADHD） is a neurodevelopmental disorder with a long-term impact on functioning, productivity and quality of life of patients. This impact is largely due to the symptoms of inattentiveness. However, despite its impairing role in the lives of ADHD patients, inattentiveness has been studied relatively less frequently than have symptoms of impulsivity/hyperactivity and problems with executive function. This review therefore seeks to integrate the neuropsychological theories and current findings in the research fields of neuropsychology, neurophysiology, and neuroimaging, in an attempt to gain a more complete understanding of the role that inattentiveness plays in ADHD, as well as to suggest directions for future studies. The need for a more comprehensive understanding of inattentiveness and ADHD, which integrates findings from each of the three disciplines mentioned above, is emphasized.

关键词： attention-deficit/hyperactivity disorder inattentiveness brain pathways neuropathology

The Discovery of the Bivalve Fossil Arguniella from the Lower Cretaceous Shangkuli Formation in Northern Greater Khingan Mountains, China: Implications for Stratigraphic Correlation

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Acta Geologica Sinica(English Edition) 2020年第4期94卷 1301-1302页

作者： CAO Yingnan li xiaobo QI Xiuyan College of Earth Sciences Dinosaur Evolution Research CenterJilin UniversityChangchun 130061China Department of Biology University of Toronto MississaugaOntario L5L 1C6Canada Key Laboratory of Mineral Resources Evaluation in Northeast Asia Ministry of Natural ResourcesChangchun 130061China

Objective Typical Early Cretaceous non-marine bivalve fossils from Eastern Asia are represented by the Arguniella-Sphaerium assemblage,and they were important members of the Jehol ***,the genus Arguniella in western L... 详细信息

关键词： Implications for Stratigraphic Correlation The Discovery of the Bivalve Fossil Arguniella from the Lower Cretaceous Shangkuli Formation in Northern Greater Khingan Mountains Northern

A Highly Selective and Sensitive Fluorescent Chemosensor for Detection of Al^(3+) in Totally Aqueous Media

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Chinese Journal of Chemistry 2014年第5期32卷 429-433页

作者： xiaobo li Jiayi Chen Enju Wang School of Chemistry and Chemical Engineering Hainan Normal UniversityHaikouHainan 571158China

A fluorescent chemosensor(1)based on 2-hydroxy-1-naphthaldehyde Schiff-base was developed for the detec-tion of Al^(3+)in 100%aqueous *** addition of Al^(3+),a significant fluorescence enhancement was ob-served,which was not affected by other metal ions including Na^(+),K^(+),Ca^(2+),Mg^(2+),Mn^(2+),Co^(2+),Ni^(2+),Cu^(2+),Cr^(3+),Ag+,Pb^(2+),Zn^(2+),Cd^(2+),Hg^(2+),Fe^(2+)and Fe^(3+)under weak acid ***,the specific response to Al^(3+)was visible under natural *** binding mode between 1 and Al^(3+)was clarified by ESI-MS and 1H NMR.

关键词： fluorescence sensor aluminum ion 2-hydroxynapthaldehyde aqueous sensor

Thermal Transport across Polyethylene Chains

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Journal of Thermal Science 2022年第4期31卷 1061-1067页

作者： YANG Cong DUAN Xuhui ZHOU Jun liU Jun li xiaobo School of Energy and Power Engineering Huazhong University of Science and Technology Wuhan 430074China Department of Mechanical and Aerospace Engineering North Carolina State University Raleigh 27695USA NNU-SUli Thermal Energy Research Center&Center for Quantum Transport and Thermal Energy Science School of Physics and Technology Nanjing Normal Universityanjing 210023China

In polymers,heat could transfer efficiently along the long polymer chains;however due to the finite length of polymer chains,such heat eventually has to pass across the chain-chain boundary which is less effective in heat *** paper investigated the thermal transport across polyethylene chains with molecular dynamics(MD)*** transport across two polymer chains overlapping with each other is studied with different chain length(75 nm,150 nm and 251 nm)and chain-chain overlapping *** results show that with increasing overlapping length,the total thermal conductance across the two chains exhibits maximum value,which is due to the increasing thermal resistance along the chains and the decreasing inter-chain thermal boundary ***,we show that the total thermal resistance can be decomposed into two *** coupling term related to the inter-chain thermal resistance tends to saturate even with long overlapping length.

关键词： phonon transport polymer polyethylene thermal resistance van der Waals interaction

High‑temperature thermal storage‑based cement manufacturing for decarbonization

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Carbon Neutrality 2022年第1期1卷 203-219页

作者： Xiaokang liu xiaobo li Ronggui Yang State Key Laboratory of Coal Combustion School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina

Cost-effective CO_(2) capture is essential for decarbonized cement production since it is one of the largest CO_(2) emission sources,where 60%of direct emissions are from CaCO3 decomposition and 40%are from fuel *** work presents a low-carbon cement manufacturing process by integrating it with renewable energy for electric heating and thermal storage to replace the burning of fossil fuels in the conventional *** low-carbon renewable energy reduces the indirect CO_(2) emissions from electricity *** high-temperature CO_(2) is employed as the heat transfer fluid between the energy storage system and the *** the proposed basic manufacturing process,the CO_(2) from the CaCO3 decomposition can be directly collected without energy-consuming separation since no impurities are ***,the remaining CO_(2) from fuel combustion in the kiln can be captured through monoethanolamine(MEA)absorption using waste *** the two situations,the overall CO_(2) emissions can be reduced by 69.7% and 83.1%,respectively,including the indirect emissions of electricity *** economic performance of different energy storage materials is investigated for materials *** proposed manufacturing process with a few high-temperature energy storage materials(BaCO_(3)/BaO,SrCO_(3)/SrO,Si,etc.)offers a higher CO_(2) emission reduction and lower cost than alternative carbon capture routes,i.e.,*** cost of CO_(2) avoided as low as 39.27$/t can be achieved by thermochemical energy storage with BaCO_(3)/BaO at 1300℃,which is superior to all alternative technologies evaluated in recent studies.

关键词： Cement manufacturing CO_(2)capture Thermal energy storage Techno-economic analysis

Fuzzing:Progress,Challenges,and Perspectives

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Computers, Materials & Continua 2024年第1期78卷 1-29页

作者： Zhenhua Yu Zhengqi liu Xuya Cong xiaobo li li Yin Institute of Systems Security and Control College of Computer Science and TechnologyXi'an University of Science and TechnologyXi'an710054China School of Mathematics and Information Science Baoji University of Arts and SciencesBaoji721013China Institute of Systems Engineering Macao University of Science and TechnologyTaipaMacaoChina

As one of the most effective techniques for finding software vulnerabilities,fuzzing has become a hot topic in software *** feeds potentially syntactically or semantically malformed test data to a target program to mine vulnerabilities and crash the *** recent years,considerable efforts have been dedicated by researchers and practitioners towards improving fuzzing,so there aremore and more methods and forms,whichmake it difficult to have a comprehensive understanding of the *** paper conducts a thorough survey of fuzzing,focusing on its general process,classification,common application scenarios,and some state-of-the-art techniques that have been introduced to improve its ***,this paper puts forward key research challenges and proposes possible future research directions that may provide new insights for researchers.

关键词： Fuzzing vulnerability software testing software security