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Balancing strength and plasticity of dual-phase amorphous/crystalline nanostructured Mg alloys

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Chinese Physics B 2020年第6期29卷 379-387页

作者： Jia-Yi Wang Hai-Yang Song Min-Rong An Qiong Deng and yu-long li College of Material Science and Engineering Xi’an Shiyou UniversityXi’an 710065China School of Aeronautics Northwestern Polytechnical UniversityXi’an 710072China

The dual-phase amorphous/crystalline nanostructured model proves to be an effective method to improve the plasticity of Mg *** purpose of this paper is to explore an approach to improving the ductility and strength of Mg alloys at the same ***,the effect of amorphous phase strength,crystalline phase strength,and amorphous boundary(AB)spacing on the mechanical properties of dual-phase Mg alloys(DPMAs)under tensile loading are investigated by the molecular dynamics simulation *** results confirm that the strength of DPMA can be significantly improved while its excellent plasticity is maintained by adjusting the strength of the amorphous phase or crystalline phase and optimizing the AB *** the DPMA,when the amorphous phase(or crystalline phase)is strengthened to enhance its strength,the AB spacing should be increased(or reduced)to obtain superior plasticity at the same *** results also indicate that the DPMA containing high strength amorphous phase exhibits three different deformation modes during plastic deformation with the increase of AB *** research results will present a theoretical basis and early guidance for designing and developing the high-performance dual-phase hexagonal close-packed nanostructured metals.

关键词： dual-phase Mg alloy metallic glass mechanical property molecular dynamics simulation

Compressive behavior and deformation kinetics of ultrafine grained aluminum processed by equal channel angular pressing

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International Journal of Smart and Nano Materials 2017年第1期8卷 56-77页

作者： Jin Su Zhong-bin Tang Cun-xian Wang Tian Ye Tao Suo yu-long li School of Aeronautics Northwestern Polytechnical UniversityXi‘anChina Fundamental Science on Aircraft Structural Mechanics and Strength Laboratory Northwestern Polytechnical UniversityXi’anChina

In the present work,the uniaxial compressive mechanical proper\ties of ultrafine grained(UFG)aluminum produced by equal channel angular pressing method were investigated experimentally over a wide temperatures ranging from 77 to 473 K under both quasi-static and dynamic loading *** on the experimental results,the strain rate,temperature sensitivity,and the apparent activation volume were *** coupling effects of both experimental temperature and applied strain rate on thermal-activated plastic deformation behavior were also *** on the thermal activation theory,the rate-controlling mechanisms for the UFG aluminum under both quasi-static and dynamic loading conditions were discussed.

关键词： Ultrafine-grained aluminum mechanical behavior strain rate sensitivity temperature sensitivity rate-controlling mechanism

Demonstration of a Shock-Timing Experiment in a CH Layer at the Shen Guang Ⅲ Laser Facility

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Chinese Physics Letters 2018年第5期35卷 69-72页

作者： Feng WANG yu-long li Zhe-Bin Wang Tao Xu Wei-Yi Zha Dong Yang Research Center of Laser Fusion China Academic of Engineering and Physics

Shock-timing experiments are indispensable to inertial confinement fusion mainly because the timing of multiple shock waves is crucial to understanding the processes of laser irradiation of targets. Investigations into shock waves driven by a two-step radiation pulse in polystyrene（CH） capsule targets are experimentally conducted at the Shen Guang Ⅱ laser facility. Differing from the traditional shock-timing implementation in which one shock wave could catch up with another one in solid CH, in this experiment, the second shock front in a rarefaction CH layer is observed through velocity interferometry. This second shock could also be made to converge with rarefaction waves within only a few micrometers of the CH capsule by designing the two-shock coalescence time. A shock-timing diagnostic technique to tune the multi-shock convergence in the CH capsule can thereby be *** experimental results in the CH layer are quasi-quantitatively interpreted using streamlines simulated with the Multi-1 D program. The experimental results are expected to offer important information for target structure and laser pulse design, both of which are important for realizing inertial confinement fusion.

关键词： VISAR In CH Laser Facility Demonstration of a Shock-Timing Experiment in a CH Layer at the Shen Guang

Hierarchical Homochiral Assembly of Polyhedral Cage-Type Nanoclusters

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CCS Chemistry 2024年第10期6卷 2537-2548页

作者： Cheng-long Deng Bao-liang Han Ze-yu liu Zhong-Hua Pan Jiao He yu-long li Zhi-lin Yang Geng-Geng Luo Chen-Ho Tung Di Sun Lan-Sun Zheng Key Laboratory of Environmentally Friendly Function Materials Ministry of EducationCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021 School of Chemistry and Chemical Engineering State Key Laboratory of Crystal MaterialsShandong UniversityJi’nan 250100 College of Physical Science and Technology Xiamen UniversityXiamen 361005 College of Chemistry and Environmental Engineering Sichuan University of Science and EngineeringZigong 643000 State Key Laboratory for Physical Chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005

Hierarchical chiral self-assembly is of profound significance for biomolecules for their biological ***-precise metal nanoclusters(NCs)offer better opportunities to construct hierarchical ***,achieving hierarchical homochiral assembly of nanocrystals protected by achiral ligands has proven to be a formidable task,with existing examples primarily limited to heterochiral *** we put forward a hierarchical assembly strategy towards precisely fabricating highly ordered homochiral ***,clusterin-nanocage type copper-hydride NCs act as synthons,of which entity is featured with a hexagonal close-packed Cu_(9)kernel embedded in a C_(3)-symmetric trigonal-prismatic metallacage,leading to a chiral core-shell primary structure with either P or M *** four homochiral NCs combined with guests through synergistic noncovalent interactions spontaneously organize into a supramolecular tetrahedral secondary structure within a unit ***,these nanoscopic supramolecular motifs pack into tertiary hierarchical superlattice of chiral cubic crystalline ***,the crystalline material shows excellent robustness,and fascinating blueexcitable near-infrared thermally activated delayed fluorescence *** work not only exhibits that nanocage-type NCs can be smart as proteins to translate chiral primary structure into tertiary chiral hierarchical complexity,but also provides new insights into structure-to-superstructure,enabling bottom-up creation of higher-level hierarchical homochiral superlattice structures.

关键词： polyhydrido copper nanoclusters chiral polyhedral metallacage hierarchical homochiral assembly thermally activated delayed fluorescence

Research progress on desulfurization technology of high-sulfur bauxite

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Transactions of Nonferrous Metals Society of China 2022年第10期32卷 3374-3387页

作者： Gan CHENG yu-long li Meng-ni ZHANG College of Chemistry and Chemical Engineering Henan Polytechnic UniversityJiaozuo 454000China Henan Key Laboratory of Coal Green Transformation Henan Polytechnic UniversityJiaozuo 454000China Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization Henan Polytechnic UniversityJiaozuo 454000China

Bauxite is the main raw material of the alumina ***,high-sulfur bauxite constitutes a relatively large proportion of bauxite resource in *** sulfur impurities in bauxite have significant impact on the Bayer process,such as corrosion of equipment and pipelines,increased consumption of alkali,and difficulties in sedimentation of red mud particles after *** the mainstreams of bauxite desulfurization technologies,the bauxite pre-desulfurization(roasting,electrochemistry,biology,flotation,etc)and Bayer process desulfurization(oxidation and precipitation)need to be fully understood for the further improvement of desulfurization ***,an in-depth review on their mechanisms and advantages/disadvantages is presented.

关键词： bauxite sulfur desulfurization flotation

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Review of the genus Brachytarsophrys(Anura:Megophryidae),with revalidation of Brachytarsophrys platyparietus and description of a new species from China

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Zoological Research 2020年第2期41卷 105-122页

作者： Yao li Dan-Dan Zhang Zhi-Tong Lyu Jian Wang yu-long li Zu-Yao liu Hong-Hui Chen Ding-Qi Rao Zhi-Fang Jin Chang-You Zhang Ying-Yong Wang State Key Laboratory of Biocontrol/The Museum of Biology School of Life SciencesSun Yat-Sen UniversityGuangzhouGuangdong 510275China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Jiangxi Jiulianshan National Nature Reserve GanzhouJiangxi 341700China

The genus-level recognition of monophyletic short-legged toads(Brachytarsophrys)has been recently implicated in the taxonomic debate of Megophrys sensu *** the present study,Brachytarsophrys is reasonably regarded as a distinct genus based on significant morphological differentiations and recent molecular ***,a comprehensive review of this genus is performed,with two species groups proposed based on morphological differences and phylogenetic ***,Brachytarsophrys platyparietus is removed as a synonym of Brachytarsophrys carinense and considered a valid species due to significant genetic divergence and distinct morphological *** addition,a new species,Brachytarsophrys orientalis ***.,is described based on a series of specimens collected from southeastern *** work takes the member species of the genus Brachytarsophrys to seven,suggesting that the diversity of Brachytarsophrys is *** addition,the genus levels of other monophyletic groups within the subfamily Megophryinae are discussed.

关键词： Genus level Megophryinae Morphology Phylogeny Revision

Male fecundity prognosis and infertility diagnosis in the era of personalised medicine

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Asian Journal of Andrology 2010年第4期12卷 463-467页

作者： Wen-Bing Zhu Xing-yu long li-Qing Fan Institute of Reproductive and Stem Cell Engineering Central South University Reproductive and Genetic Hospital of CITIC- Xiangya Central South University Changsha 410078 China

In daily clinical practice, we attempt to classify diseases according to patients＇ symptoms and reference values for certain tests. A minimal evaluation is performed following the diagnostic standard, and the patient is treated according to the diagnosis. In this ＇classification medicine＇ model, a patient＇s individual characteristics are more or less ignored.

关键词：不育参考值评价研究生育力胰岛素预后男(雄)性

Role of tumor necrosis factor alpha-induced protein 6(TNFAIP6)in tumors:a pan-cancer analysis

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Oncology and Translational Medicine 2024年第1期10卷 22-29页

作者： Yang Yang Zhi-Gang liu Yan-Qi Yang Zhi-Gang Zhang Xiao-li Wang yu-long li Rui-Fang Sun School of Public Health Shaanxi University of Chinese MedicineXianyangChina Department of Thoracic Surgery Shaanxi Provincial Cancer HospitalXi'an Jiaotong UniversityXi'anChina Department of Pathology School of Basic Medical SciencesHealth Science CenterXi'an Jiaotong UniversityXi'anChina Department of Dermatology Affiliated Hospital of Shaanxi University of Chinese MedicineShaanxiChina Department of Gastroenterology Shaanxi Provincial People's HospitalXi'anChina.

Background:There is growing evidence that the gene named tumor necrosis factorα–induced protein 6(TNFAIP6)has an important role in various ***,a systematic pan-cancer analysis of TNFAIP6 is *** we aimed to analyze the expression of TNFAIP6 across multiple cancers and verify its expression during the progression of colon ***:We performed a comprehensive bioinformatics analysis to examine the expression of TNFAIP6 across 27 tumor ***2 was used to evaluate the effect of TNFAIP6 on clinical cancer *** was used to assess TNFAIP6 *** correlation between TNFAIP6 and cancer immune infiltrates was explored using *** CancerSEA database was used to perform functional analysis of *** was used to identify TNFAIP6-related gene enrichment *** was performed to detect TNFAIP6 protein expression in the colon *** addition,the Comparative Toxicogenomics Database was searched for known and possible antitumor drugs that may be associated with ***:We found that,in most of the cancers included in this analysis,TNFAIP6 was highly expressed,and there is a distinct relationship between TNFAIP6 expression and cancer ***6 expression is associated with cancer-associated fibroblasts,neutrophils,and endothelial ***6 and similar genes may also be involved in the PID_VEGF_VEGFR_*** revealed an increasing trend of TNFAIP6 protein expression in normal,adenoma,and colon cancer *** known and possible antitumor drugs that may be associated with TNFAIP6 were identified in the Comparative Toxicogenomics *** results suggest that a number of drugsmay target TNFAIP6 during cancer treatment,including cisplatin,irinotecan,resveratrol,U 0126,NSC689534,genistein,NSC668394,oxaliplatin,plerixafor,topotecan,vincristine,flutamide,doxorubicin,MRK 003,folic acid,demecolcine,tunicamycin,zoledronic acid,and schizandrin B.

关键词： Cancer IHC Mutation Survival TNFAIP6

Functional decoration on a regenerable bifunctional porous covalent organic framework probe for rapid detection and adsorption of copper ions

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Rare Metals 2024年第2期43卷 758-769页

作者： yu-long li Xi-Lang Jin Yi-Ting Ma Jing-Rui liu Fazal Raziq Peng-yuan Zhu Zhi-Feng Deng Hong-Wei Zhou Wei-Xing Chen Wen-Huan Huang School of Materials and Chemical Engineering Xi’an Technological UniversityXi’an710021China yulin Boyi-Jingking Research Institute of Industrial Technology Development Research Yulin719054China KAUST Catalysis Center King Abdullah University of Science and Technology23955-6900ThuwalKingdom of Saudi Arabia Key Laboratory of Chemical Additives for China National light Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and TechnologyXi’an710021China National and Local Joint Engineering Laboratory for Slag Comprehensive Utilization and Environmental Technology School of Materials Science and EngineeringShaanxi University of TechnologyHanzhong723001China

Developing fluorescence porous probe for detecting and eliminating Cu^(2+) contamination in water or biosystem is an essential research project that has attracted considerable ***,improving the fluorescence detecting efficiency while enhancing the adsorption capacity of the porous probe is of great ***,a bifunctional two-dimensional imine-based porous covalent organic framework(TTP-COF)probe was designed and synthesized from 1,3,5-tris(4-aminophenyl)benzene(TAPB)and 2,4,6-Triformylphloroglucinol(TP)***-COF displayed rapid detection of Cu^(2+)(limit of detection(LOD)=10 nmol·L^(−1) while achieving a high adsorption capacity of 214 mg·g^(−1)(pH=6)at room temperature with high reusability(>5 cycles).The key roles and contributions of highπ-conjugate and delocalized electrons in TABP and functional–OH groups in TP were *** importantly,the fluorescence quenching mechanism of TTP-COF was studied by density functional theory theoretical calculations,revealing the crucial role of intramolecular hydrogen bonds among C=N and–OH groups and the blocking of the excited state intramolecular proton transfer process in detecting process of Cu^(2+).

关键词： Covalent organic framework(COF) Excited-state intramolecular proton transfer(ESIPT) Copper ion detection Copper ion adsorption Renewability