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Strong correlations in two-dimensional transition metal dichalcogenides

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Science China(Physics,Mechanics & Astronomy) 2023年第11期66卷 77-91页

作者： Wei ruan Yuanbo Zhang State Key Laboratory of Surface Physics and Department of Physics Fudan UniversityShanghai200438China Shanghai Research Center for Quantum Sciences Shanghai201315China Institute for Nanoelectronic Devices and Quantum Computing Fudan UniversityShanghai200433China Zhangjiang Fudan International Innovation Center Fudan UniversityShanghai201210China Shanghai Qi Zhi Institute Shanghai200232China

Since the discovery of graphene,the development of two-dimensional material research has enabled the exploration of a rich variety of exotic quantum phenomena that are not accessible in bulk *** two-dimensional materials offer a unique platform to build novel quantum *** transition metal dichalcogenides,when thinned down to atomic thicknesses,exhibit intriguing physical properties such as strong electron *** study of strongly-correlated phenomena in twodimensional transition metal dichalcogenides has been a major research frontier in condensed matter *** this article,we review recent progress on strongly-correlated phenomena in two-dimensional transition metal dichalcogenides,including Mott insulators,quantum spin liquids,and Wigner *** topics represent a rapidly developing research area,where tremendous opportunities exist in discovering exotic quantum phenomena,and in exploring their applications for future electronic devices.

关键词： two-dimensional materials transition metal dichalcogenide strong correlations

Evaluation of dynamic effects of dietary medium-chain monoglycerides on performance,intestinal development and gut microbiota of broilers in large-scale production

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Animal Nutrition 2023年第3期14卷 269-280页

作者： Tao Liu Shengyue ruan Qiufen Mo Minjie Zhao jing Wang Zhangying Ye Li Chen fengqin feng College of Biosystems Engineering and Food Science Zhejiang UniversityHangzhou 310058China The Institute of Animal Husbandry and Veterinary Science Zhejiang Academy of Agricultural SciencesHangzhou 310021China Ningbo Research Institute Zhejiang UniversityNingbo 315000China Hangzhou Longyu Biotechnology Co. LtdHangzhou 310003China

Medium-chain monoglycerides(MG)have been reported to affect the productive performance,gut microbiota and health of broiler chickens reared in ideal experimental conditions at home and ***,the effects of MG on performance,intestinal development and gut microbiota of chickens in large-scale farms during different feed stages remain *** present study was conducted on a modern farm with a total of 12,000 yellow feathered broiler chicks that were randomly allotted to 2groups(1000 chicks/replicate,6 replicates/group)for a 70-day *** control group(CON group)received a basal diet,and the treated group(MG group)was fed a basal diet containing 300 mg/kg mixed *** results revealed that dietary MG significantly(P<0.05)increased the body weight and average feed intake,but notably reduced the feed conversion and mortality of chickens in large-scale production during the starter *** villus height of the duodenum in the MG group at 1,2 and 7 wk of age increased notably,and the villus height to crypt depth ratio at 1,2,5 and 10 wk of age was *** MG decreased the serum insulin content of chickens at 5,7 and 10 wk of age,and decreased the serum lipopolysaccharide at 3 and 7 wk of *** triglyceride level of chickens at 3,5 and 10 wk of age and the low-density lipoprotein cholesterol level of chickens at 7 and 10 wk of age in the MG group decreased notably,while the high-density lipoprotein cholesterol increased ***,MG supplementation selectively increased the relative abundance of genus Bacteroides(family Bacteroidaceae)and Lachnospiraceae_NK4A136_group,but decreased the content of genus Rikenellaceae_RC9_gut_group,Collinsella and family Barnesiellaceae in the cecum of chickens at 3,7 and 10 wk of ***,these findings showed that dietary MG notably enhanced chicken performance,health and feed nutrient utilization at early ages by regulating gut microbiota,intestinal development and serum biochemical indice

关键词： Medium-chain monoglycerides Broiler chickens Dynamic effect Gut microbiota Fat deposition

Three-dimensional numerical study of supercritical pressure effect on heat transfer of cryogenic methane

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航空动力学报 2011年第7期26卷 1480-1487页

作者： ruan Bo MENG Hua School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 China)

A three-dimensional numerical study of the turbulent convective heat transfer of the cryogenic methane flowing inside a square engine cooling channel under supercritical pressures was systematically *** results indicate that increasing the fluid pressure results in enhanced heat transfer of the cryogenic methane under supercritical *** the pseudo-critical temperature under a corresponding supercritical pressure,drastic property variations cause heat transfer deterioration and sharp wall temperature increase at a high wall heat flux of 7MW/m2.A modified Jackson and Hall heat transfer equation,which can be used for supercritical heat transfer calculations of the cryogenic methane,has been successfully established in this paper.

关键词： supercritical heat transfer supercritical pressure regenerative cooling cryogenic methane numerical study

A novel particle tracking algorithm using polar coordinate system similarity

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Acta Mechanica Sinica 2005年第5期21卷 430-435页

作者： Xiaodong ruan Wenfeng Zhao The State Key Laboratory of Fluid Power Transmission and Control Zhejiang University Hangzhou 310027 China

A new algorithm using polar coordinate system similarity （PCSS） for tracking particle in particle tracking velocimetry （PTV） is proposed. The essence of the algorithm is to consider simultaneously the changes of the distance and angle of surrounding particles relative to the object particle. Monte Carlo simulations of a solid body rotational flow and a parallel shearing flow are used to investigate flows measurable by PCSS and the influences of experimental parameters on the implementation of the new algorithm. The results indicate that the PCSS algorithm can be applied to flows subjected to strong rotation and is not sensitive to experimental parameters in comparison with the conventional binary image cross-correlation （BICC） algorithm. Finally, PCSS is applied to images of a real experiment.

关键词： PIV . PTV . Polar coordinate system similarity .Binary image cross-correlation.

Investigation of the methane hydrate surface area during depressurization-induced dissociation in hydrate-bearing porous media

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Chinese Journal of Chemical Engineering 2021年第4期34卷 324-334页

作者： Xuke ruan Xiao-Sen Li Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou 510640China CAS Key Laboratory of Gas Hydrate Guangzhou 510640China

The surface area of hydrate during dissociation in porous media is essentially important for the kinetics of hydrate *** this study,the methane hydrate surface area was investigated by the comparison results of experiments and numerical simulations during hydrate decomposition in porous *** experiments of methane hydrate depressurizationinduced dissociation were performed in a 1D high pressure cell filled with glass beads,an improved and valid 1D corescale numerical model was developed to simulate gas *** conceptual models for hydrate dissociation surface area were proposed based on the morphology of hydrate in porous media,which formed the functional form of the hydrate dissociation surface area with porosity,hydrate saturation and the average radius of sand sediment *** the establishment of numerical model for depressurizationinduced hydrate dissociation in porous media,the cumulative gas productions were modeling and compared with the experimental data at the different hydrate *** results indicated that the proposed prediction equations are valid for the hydrate dissociation surface area,and the graincoating surface area model performs well at lower hydrate saturation for hydrate dissociation simulation,whereas at higher hydrate saturation,the hydrate dissociation simulation from the porefilling surface area model is more ***,the sensitivity analysis showed that the hydrate dissociation surface area has a significant impact on the cumulative gas production.

关键词： Surface area Methane hydrate Hydrate dissociation Hydrate morphology Depressurization

Parallel detection and quantitative analysis of specific binding of proteins by oblique-incidence reflectivity difference technique in label-free format

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Science China(Physics,Mechanics & Astronomy) 2014年第11期57卷 2039-2042页

作者： DAI Jun LI Lin HE LiPing ruan KangCheng LU HuiBin jin KuiJuan YANG GuoZhen Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of Sciences Key Laboratory of Proteomics Institute of Biochemistry and Cell BiologyShanghai Institute for Biological SciencesChinese Academy of Sciences Collaborative Innovation Center of Quantum Matter

In this work,we parallelly detected the specific binding between microarray targets including 12 different kinds of proteins and the probe solution containing five corresponding antibodies and quantitatively analyzed the interactions between CDH13 and solution phase anti-CDH13 at six different probe concentrations by oblique-incidence reflectivity difference(OIRD)method in label-free *** detection sensitivity reached 10 ng/*** experimental results indicate that the OIRD method is a promising and competing technique not only in research work but also in clinic.

关键词： label format oblique reflectivity incidence spots quantitatively competing challenge finger

The CalderSn-Zygmund Decomposition and Interpolation on Weighted Hardy Spaces

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Acta Mathematica Sinica,English Series 2011年第10期27卷 1967-1978页

作者： Zhuo Ping ruan Department of Mathematics Beijing Normal University Beijing 100875 P. R. China

We apply discrete Littlewood Paley Stein theory, developed by Han and Lu, to establish Calderon Zygmund decompositions and interpolation theorems on weighted Hardy spaces Hp for w C A∞ in both the one-parameter and t... 详细信息

关键词： Calderdn Zygmund decomposition interpolation weighted Hardy spaces discrete Little- wood Paley analysis

Energy-Efficient Multi-UAV Coverage Deployment in UAV Networks:A Game-Theoretic Framework

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China Communications 2018年第10期15卷 194-209页

作者： Lang ruan jinlong Wang jin Chen Yitao Xu Yang Yang Han Jiang Yuli Zhang Yuhua Xu College of Communications Engineering Army Engineering University of PLA Key Embedded Technology and Intelligent System Laboratory College of Information Science and Engineering Guilin University of Technology

UAV cooperative control has been applied in many complex UAV communication networks. It remains challenging to develop UAV cooperative coverage and UAV energy-efficient communication technology. In this paper, we investigate current works about UAV coverage problem and propose a multi-UAV coverage model based on energy-efficient communication. The proposed model is decomposed into two steps: coverage maximization and power control, both are proved to be exact potential games(EPG) and have Nash equilibrium(NE) points. Then the multi-UAV energy-efficient coverage deployment algorithm based on spatial adaptive play(MUECD-SAP) is adopted to perform coverage maximization and power control, which guarantees optimal energy-efficient coverage deployment. Finally, simulation results show the effectiveness of our proposed approach, and confirm the reliability of proposed model.

关键词： UAV networks multi-UAV coverage energy-efficient potential games Nash equilibrium

Functional biomaterials for modulating the dysfunctional pathological microenvironment of spinal cord injury

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Bioactive Materials 2024年第9期39卷 521-543页

作者： Dezun Ma Changlong Fu fenglu Li Renjie ruan Yanming Lin Xihai Li Min Li jin Zhang Academy of Integrative Medicine Fujian University of Traditional Chinese Medicine1 Qiuyang RoadFuzhouFujian350122PR China Fujian Key Laboratory of Integrative Medicine on Geriatrics Fujian University of Traditional Chinese MedicineFuzhouFujian350122PR China College of Chemical Engineering Fuzhou University2 Xueyuan RoadFuzhou350108PR China Qingyuan Innovation Laboratory 1 Xueyuan RoadQuanzhou362801PR China Fujian Children’s Hospital Fujian Branch of Shanghai Children’s Medical Center966 Hengyu RoadFuzhou350014PR China Fujian Maternity and Child Health Hospital 111 Daoshan RoadFuzhou350005PR China College of Clinical Medicine for Obstetrics&Gynecology and Pediatrics Fujian Medical University111 Daoshan RoadFuzhou350005PR China

Spinal cord injury(SCI)often results in irreversible loss of sensory and motor functions,and most SCIs are incurable with current medical *** of the hardest challenges in treating SCI is the development of a dysfunctional pathological microenvironment,which mainly comprises excessive inflammation,deposition of inhibitory molecules,neurotrophic factor deprivation,glial scar formation,and imbalance of vascular *** overcome this challenge,implantation of functional biomaterials at the injury site has been regarded as a potential treatment for modulating the dysfunctional microenvironment to support axon regeneration,remyelination at injury site,and functional recovery after *** review summarizes characteristics of dysfunctional pathological microenvironment and recent advances in biomaterials as well as the technologies used to modulate inflammatory microenvironment,regulate inhibitory microenvironment,and reshape revascularization ***,technological limitations,challenges,and future prospects of functional biomaterials to promote efficient repair of SCI are also *** review will aid further understanding and development of functional biomaterials to regulate pathological SCI microenvironment.

关键词： Spinal cord injury Dysfunctional pathological microenvironment Functional biomaterials Axon regeneration Functional recovery