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SSRN 2023年

作者： Zhu, Xinyang Chen, Ronghua Wang, Jinshun Niu, Yuhang Wu, Yingwei Zhang, Dalin Tian, Wenxi Qiu, Suizheng Su, Guanghui School of Nuclear Science and Technology Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University Xi’an710049 China

As one of the Gen IV advanced reactors, liquid metal reactor(LMR) holds promising prospects for its high fuel efficiency and excellent inherent safety performance. Owing to its complex working conditions and ultra-high operating temperature, a thermal-hydraulic analysis of the reactor core is gradually playing a bigger role in recent years. Therefore, a subchannel code FLARE for LMRs is developed within the MOOSE ***, a hybrid discretization approach involving DG and FEM as well as the JFNK method are employed to solve the equations in a fully-coupled way. To validate the computational accuracy and convergence of FLARE code, comparisons between the calculation values of FLARE, those of other programs and the experimental data are performed using 7-pin, 19-pin and 37-pin assembly experiments. The computational results indicate a good agreement between FLARE, experimental values, and other programs. In conclusion, FLARE code possesses the capability to accurately analyze LMR core. © 2023, The Authors. All rights reserved.

关键词： Reactor cores

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3D-bioprinted vascular scaffold with tunable mechanical properties for simulating and promoting neo-vascularization

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Smart Materials in Medicine 2022年 3卷 199-208页

作者： Zhou, Xin Gao, Qiang Yu, Dan Shao, Yichun Wang, Zhaohui Liu, Xiao Wang, Wenwu Chang, Likun Ma, Tianxiang Mok, Hsiaopei Cen, Jianzheng Chen, Jimei Tahchi, Mario El Zhuang, Jian Mou, Fangzhi Zhang, Jin Yin, Yixia State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Department of Cardiac Surgery Guangdong Cardiovascular Institute Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou510100 China Key Laboratory for Biomechanics and Mechanobiology of the Ministry of Education Beijing Advanced Innovation Centre for Biomedical Engineering School of Biological Science and Medical Engineering Beihang University Beijing100083 China LBMI Department of Physics Faculty of Sciences 2 Lebanese University P.O. Box 90656 Jdeidet Lebanon Qingyuan Innovation Laboratory College of Chemical Engineering Fuzhou University 2 Xueyuan Road Fuzhou350108 China

Alternative artificial vessels with tissue-matching mechanical and biological performance have been continuously taking great attention in bioengineering. However, it is challenging to take into account both mechanical and biological properties in formulating a hydrogel material. In the current study, a composite hydrogel ink based on geltain-methacryloyl (GelMA) and sodium alginate (SA) was prepared by a two-step polymerization process, and its fast shaping was realized by stabilizing the alginate fraction in calcium ion bath as well as the photo-crosslinking of GelMA. Mechanical properties of the transparent 3D printing GelMA/Gelatin/SA blood vessels were determined by testing their stretching and resilience performance. Based on Von Mise stress simulation using Ansys, strain of the artificial blood vessels reached 147% and the elastic Young's modulus reached approximately 224 kPa in the optimal hydrogel formulation, matching well with capability of enduring certain blood pressure encountered in real tissue. A selective and uniform permeability of hydrogel tubes was presented by using small molecules and human red blood cells, meanwhile excellent hemolysis, cell viability, and proliferation ability were also verified. Based on the results of in vitro assessment and the in vivo transplantation in SD rats, our proposed GelMA/Gelatin/SA vessels, with tissue-matching mechanical properties and their ideal biodegradation behavior, promoted neo-vascularization capacity and showed promising potential in producing an artificial blood vessel. © 2022 The Authors

关键词： Blood

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Direct extraction of topological Zak phase with the synthetic dimension

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Light(Science & Applications) 2023年第4期12卷 671-679页

作者： Guangzhen Li Luojia Wang Rui Ye Yuanlin Zheng Da-Wei Wang Xiong-Jun Liu Avik Dutt Luqi Yuan Xianfeng Chen State Key Laboratory of Advanced Optical Communication Systems and Networks School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Shanghai Research Center for Quantum Sciences Shanghai 201315China Interdisciplinary Center for Quantum Information and Zhejiang Province Key Laboratory of Quantum Technology and Device Department of PhysicsZhejiang UniversityHangzhou 310027China InternationalCenter for Quantum Materials and School of Physics Peking UniversityBeijing 100871China International Quantum Academy Shenzhen 518048China Department of Mechanical Engineering Institute for Physical Science and TechnologyUniversity of MarylandCollege ParkMD 20742USA Collaborative Innovation Center of Light Manipulation and Applications Shandong Normal UniversityJinan 250358China

Measuring topological invariants is an essential task in characterizing topological phases of *** are usually obtained from the number of edge states due to the bulk-edge correspondence or from interference since they are integrals of the geometric phases in the energy *** is commonly believed that the bulk band structures could not be directly used to obtain the topological ***,we implement the experimental extraction of Zak phase from the bulk band structures of a Su-Schrieffer-Heeger(SSH)model in the synthetic frequency *** synthetic SSH lattices are constructed in the frequency axis of light,by controlling the coupling strengths between the symmetric and antisymmetric supermodes of two bichromatically driven *** measure the transmission spectra and obtain the projection of the time-resolved band structure on lattice sites,where a strong contrast between the non-trivial and trivial topological phases is *** topological Zak phase is naturally encoded in the bulk band structures of the synthetic SSH lattices,which can hence be experimentally extracted from the transmission spectra in a fiber-based modulated ring platform using a laser with telecom *** method of extracting topological phases from the bulk band structure can be further extended to characterize topological invariants in higher dimensions,while the exhibited trivial and non-trivial transmission spectra from the topological transition may find future applications in optical communications.

关键词： topological trivial synthetic

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Novel smart coaxial electrospinning textiles for efficient thermal interface management and electromagnetic compatibility in electronics

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Chemical engineering Journal 2023年 472卷

作者： Song, Shaokun Ai, Hong Lv, Linda Guo, Yi Han, Ting Dong, Lijie Center for Smart Materials and Devices State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China

Phase change materials (PCMs) have attracted considerable attention for their energy storage and thermoregulatory properties. However, the solid–liquid leakage, low thermal conductivity, and single functionality of PCMs hinder their applications to electronic equipment. In this study, polyvinyl alcohol (PVA) and polyethylene oxide/ferric oxide (PEO/Fe3O4)-based core–sheath textiles are prepared using an eco-friendly coaxial electrospinning technique and simple steam crosslinking. The composite phase change fibers (CPCFs) and magnetic composite phase change fibers (MCPCFs) produced in this way show ultrahigh encapsulation ratios of 78.02 wt% and 69.11 wt%, respectively, and high phase change enthalpies of 106.96 J g−1 and 94.75 J g−1, respectively. The addition of Fe3O4 (20 wt%) introduces a saturation magnetization of 9.5 emu g−1, thereby realizing 3 dB electromagnetic shielding performance. The textiles exhibit excellent flexibility and can be formed into complex shapes. Owing to their core–sheath structure, the CPCFs and MCPCFs exhibit outstanding structural and thermal stabilities during 100 thermal cycles. Furthermore, the mechanical properties of the CPCF and MCPCF textiles can be enhanced by crosslinking. © 2023 Elsevier B.V.

关键词： Phase change materials

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Green,Sustainable Architectural Bamboo with High Light Transmission and Excellent electromagnetic Shielding as a Candidate for Energy-Saving Buildings

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Nano-Micro Letters 2023年第1期15卷 209-224页

作者： Jing Wang Xinyu Wu Yajing Wang Weiying Zhao Yue Zhao Ming Zhou Yan Wu Guangbin Ji College of Furnishings and Industrial Design Nanjing Forestry UniversityNanjing 210037People’s Republic of China College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211100People’s Republic of China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension MaterialsCollege of Material Science and EngineeringDonghua UniversityShanghai 201620People’s Republic of China

Currently,light-transmitting,energy-saving,and electromagnetic shielding materials are essential for reducing indoor energy consumption and improving the electromagnetic ***,we developed a cellulose composite with excellent optical transmittance that retained the natural shape and fiber structure of *** modified whole bamboo possessed an impressive optical transmittance of approximately 60%at 6.23 mm,illuminance of 1000 luminance(lux),water absorption stability(mass change rate less than 4%),longitudinal tensile strength(46.40 MPa),and surface properties(80.2 HD).These were attributed to not only the retention of the natural circular hollow structure of the bamboo rod on the macro,but also the complete bamboo fiber skeleton template impregnated with UV resin on the ***,a multilayered device consisting of translucent whole bamboo,transparent bamboo sheets,and electromagnetic shielding film exhibited remarkable heat insulation and heat preservation performance as well as an electromagnetic shielding performance of 46.3 *** impressive optical transmittance,mechanical properties,thermal performance,and electromagnetic shielding abilities combined with the renewable and sustainable nature,as well as the fast and efficient manufacturing process,make this bamboo composite material suitable for effective application in transparent,energy-saving,and electromagnetic shielding buildings.

关键词： electromagnetic interference shielding Biomass material Transmittance Energy-saving Bamboo

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Laser-processed lithium niobate wafer for pyroelectric sensor

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InfoMat 2024年第10期6卷 108-118页

作者： Di Xin Jing Han Wei Song Wenbin Han Meng Wang Zhimeng Li Yunwu Zhang Yang Li Hong Liu Xiaoyan Liu Dehui Sun Weijia Zhou Institute for Advanced Interdisciplinary Research(iAIR) School of Chemistry and Chemical EngineeringUniversity of JinanJinanPeople's Republic of China School of Physics and Technology University of JinanJinanPeople's Republic of China CETC Deqing Huaying Electronics Co. LTD.HuZhouPeople's Republic of China School of Microelectronics Shandong UniversityJinanPeople's Republic of China State Key Laboratory of Crystal Materials Shandong UniversityJinanShandong ProvincePeople's Republic of China

During the past few decades, pyroelectric sensors have attracted extensiveattention due to their prominent features. However, their effectiveness is hinderedby low electric output. In this study, the laser processed lithium niobate(LPLN) wafers are fabricated to improve the temperature–voltage *** processed wafers are utilized to construct pyroelectric sensors as well ashuman–machine interfaces. The laser induces escape of oxygen and the formationof oxygen vacancies, which enhance the charge transport capability on thesurface of lithium niobate (LN). Therefore, the electrodes gather an increasedquantity of charges, increasing the pyroelectric voltage on the LPLN wafers toa 1.3 times higher voltage than that of LN wafers. For the human–machineinterfaces, tactile information in various modes can be recognized by a sensorarray and the temperature warning system operates well. Therefore, the lasermodification approach is promising to enhance the performance of pyroelectricdevices for applications in human–machine interfaces.

关键词： human–machine interfaces laser-induced defects lithium niobate pyroelectric sensors surface modification

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Ultra-compact lithium niobate microcavity electro-optic modulator beyond 110 GHz

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Chip 2022年第4期1卷 29-36页

作者： Bing-Cheng Pan Hong-Xuan Liu Hao-Chen Xu Yi-Shu Huang Huan Li Ze-Jie Yu Liu Liu Yao-Cheng Shi Dao-Xin Dai State Key Laboratory for Modern Optical Instrumentation Centre for Optical and Electromagnetic ResearchCollege of Optical Science and EngineeringInterna-tional Research Center for Advanced PhotonicsZhejiang UniversityZijingang CampusHangzhou 310058China Ningbo Research Institute Zhejiang Uni-versityNingbo 315100China Jiaxing Key Laboratory of Photonic Sensing&Intelligent Imaging Jiaxing 314000China Intelligent Optics&Photonics Re-search Center Jiaxing Research Institute Zhejiang UniversityJiaxing 314000China

A lithium-niobate-on-insulator(LNOI)electro-optic(EO)modulator based on a 2×2 FP-cavity was designed and realized with an ultra-compact footprint and an ultra-high bandwidth.A comprehensive analysis on the present LNOI FP-cavity modulator was conducted to reveal the dependence of modulation bandwidth and modulation effi-ciency on the cavity Q-factor and the operation wavelength detuning to the *** particular,the 2×2 FP cavity was designed to achieve an optimal Q factor by reducing the reflectivity of reflectors and the cavity length,thus reducing the photon lifetime in the *** ultra-short effective cavity length of only∼50μm was achieved for the designed LNOI FP-cavity modulator,with itsfootprint being as compact as∼4×500μm *** was demonstrated theoretically that the modulation bandwidth could be improved significantly to be over 200 GHz by utilizing the peaking enhancement *** fabricated device exhibited an excess loss of∼1 dB and an extinction ratio of∼20 dB in experiments,while the measured 3-dB bandwidth was higher than 110 GHz(beyond the maximal range of the facilities in experiments).Up till now,to our best knowledge,this has been the first LNOI microcavity modulator with a bandwidth higher than 110 ***,high-quality eye-diagrams of 100 Gbps on-off keying(OOK)and 140 Gbps 4-pulse amplitude modulation(PAM4)signals were demonstrated experimentally,and the energy consumption for the OOK signals was as low as 4.5 fJ/bit.

关键词： Lithium niobate Microcavity Electro-optic Modulator

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Mechanical design and energy absorption of 3D novel hybrid lattice metamaterials

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Science China(Technological Sciences) 2021年第10期64卷 2220-2228页

作者： ZHANG Peng Biligetu QI DeXing XUE Rui LIU Kai HUANG ZhiXin WU WenWang LI Ying State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures Institute of Advanced Structure TechnologyBeijing Institute of TechnologyBeijing 100081China Department of Engineering Mechanics School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China Inner Mongolia First Machinery Group Co.Ltd. Baotou 014000China

In this paper,three-dimensional(3D)novel hybrid lattice structures with exceptional mechanical properties and energy absorbing performances were proposed,and experimental and finite element simulation comparisons were performed to demonstrate their potential in mechanical ***,different types of basic cubic unit cells were designed for constructing three types of novel hybrid metamaterials,in which stepped circulation of different unit cells was conceived to generate architected ***,quasi-static compression experiments and finite element simulations were performed to study the deformation process and failure mechanisms of as-fabricated hybrid *** energy absorption efficiency,specific energy absorption(SEA)indicators,and energy absorption capabilities of different hybrid lattice metamaterials were compared and *** results show that the deformation mechanisms of novel hybrid lattice were beneficial for generating remarkable elevated densification strain,and the energy absorption efficiency can be tailored by altering the types or sizes of basic unit ***-hardening and bilinear features were also obtained.

关键词： hybrid lattice quasi-static compression densification strain energy absorption strain hardening bilinear

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Effect of micro/nano-sheet array structures on the osteo-immunomodulation of macrophages

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Regenerative Biomaterials 2022年第1期9卷 888-899页

作者： Xinhui Zheng Lan Chen Ji Tan Jianhua Miao Xuanyong Liu Tieyi Yang Zhihong Ding Department of Orthopedics Gongli Hospital of Shanghai Pudong New AreaShanghai 200135China Department of Orthopedics Zhengzhou Central Hospital Affiliated Zhengzhou UniversityZhengzhou 450007China State Key Laboratory of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China School of Materials Science and Engineering&Henan Key Laboratory of Advanced Magnesium Alloy&Key Laboratory of Materials Processing and Mold Technology(Ministry of Education) Zhengzhou UniversityZhengzhou 450001China

The immune response induced by surface topography crucially determines the implant ***,how the immune response is mediated by the size of surface topography remains ***,various biocompatible Mg-Al layered double hydroxides sheet-array films with different sizes(nano,micro and nano/micro mixture)were constructed on the biomedical titanium,and their osteo-immunomodulation effects on the macrophages were *** nano-sheet array structures significantly promoted the polarization of M2 macrophages by activating the PI3K-AKT-mTOR signaling pathway with high gene expressions of integrin b2 and *** the micro-sheet array structures enhanced osteogenic differentiation of mouse bone marrow mesenchymal stem cells(mBMSCs)via ROCK-YAP/TAZ-mediated ***,the nano-sheet array structures promoted the osteogenic differentiation of mBMSCs with a high proportion of M2 macrophages through a shared *** study gave further information concerning integrin-induced focal adhesions in cells of different sheet array structures and their role in macrophage polarization and osteogenic differentiation of mBMSCs,which might help to design biomaterial surfaces with optimal geometry for a desired immunemodulation.

关键词： micro-nano topography immunomodulation macrophages osteogenesis

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Evaluation and optimization of analytical procedure and sample preparation for polar Streptomyces albus J1074 metabolome profiling

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Synthetic and Systems Biotechnology 2022年第3期7卷 949-957页

作者： Shuai Fu Ziheng An Liangliang Wu Zilei Xiang Zixin Deng Ran Liu Tiangang Liu Key Laboratory of Combinatorial Biosynthesis and Drug Discovery Ministry of Education and School of Pharmaceutical SciencesWuhan UniversityWuhan430072Hubei ProvinceChina Hubei Engineering Laboratory for Synthetic Microbiology Wuhan Institute of BiotechnologyWuhan430075Hubei ProvinceChina State Key Laboratory of Microbial Metabolism Joint International Research Laboratory of Metabolic and Developmental SciencesSchool of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghai200030China CAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic BiologyShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China

Metabolomics is an essential discipline in omics technology that promotes research on the biology of microbial *** albus J1074 is a model organism used in fundamental research and industrial ***,a comprehensive and standardized method for analyzing the metabolome of *** J1074 is yet to be ***,we comprehensively evaluated and optimized the analytical procedure and sample preparation for profiling polar metabolites using hydrophilic interaction liquid chromatography(HILIC)coupled with high-resolution mass spectrometry(HRMS).We systematically examined the HILIC columns,quenching solutions,sample-to-quenching ratios,and extraction ***,the optimal protocol was used to investigate the dynamic intracellular polar metabolite profile of the engineered *** J1074 strains during spinosad(spinosyn A and spinosyn D)fermentation.A total of 3648 compounds were detected,and 83 metabolites were matched to the *** intracellular metabolomic profiles of engineered *** J1074 strains(ADE-AP and OE3)were detected;furthermore,their metabolomes in different stages were analyzed to reveal the reasons for their differences in their spinosad production,as well as the current metabolic limitation of heterologous spinosad production in *** *** HILIC-HRMS method is a valuable tool for investigating polar metabolomes,and provides a reference methodology to study other Streptomyces metabolomes.

关键词： Metabolomics Streptomyces Spinosad Hydrophilic interaction liquid chromatography High resolution mass spectrometry

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