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Chinese Journal of Chemical Engineering 2019年第6期27卷 1439-1448页

作者： xiaoyu hu Diannan Lu State Key Laboratory of Chemical Engineering Key Lab of Industrial BiocatalysisMinistry of EducationChina Department of Chemical EngineeringTsinghua University

With the development of manufacturing technology on the nanoscale, the precision of nano-devices is rapidly increasing with lower cost. Different from macroscale or microscale fluids, many specific phenomena and advantages are observed in nanofluidics. Devices and process involving and utilizing these phenomena play an important role in many fields in chemical engineering including separation, chemical analysis and *** this article, we summarize the state-of-the-art progress in theoretical studies and manufacturing technologies on nanofluidics. Then we discuss practical applications of nanofluidics in many chemical engineering fields,especially in separation and encountering problems. Finally, we are looking forward to the future of nanofluidics and believe it will be more important in the separation process and the modern chemical industry.

关键词： Nanofluidics Nanostructured channel Molecular simulation Chemical separation engineering

On a composition of subfactors with group subfactors

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Science China Mathematics 2021年第2期64卷 373-384页

作者： xiaoyu hu Rui Shi Feng Xu School of Mathematical Sciences Dalian University of TechnologyDalian 116024China Department of Mathematics Foshan UniversityFoshan 528225China Department of Mathematics University of California at RiversideRiversideCA 92521USA

Let M be a typeⅡ1 factor,G be a finite group,and N■M be an irreducible subfactor of finite *** prove that the composed lattice of the intermediate subfactor lattice for the inclusion N■M and the subgroup lattice of G can be realized as an intermediate subfactor lattice of a certain composed subfactor of finite index,and this subfactor also has finite depth when N■M has finite depth.

关键词： subfactor typeⅡ1 factor lattice

Metal-organic framework-derived Ni/ZnO nano-sponges with delicate surface vacancies as anode materials for high-performance supercapacitors

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Nano Research 2021年第11期14卷 4063-4072页

作者： Anchun Tang Chubin Wan xiaoyu hu Xin Ju School of Mathematics and Physics University of Science and Technology BeijingBeijing100083China

Ni/ZnO nano-sponges have been successfully synthesized through optimized annealing of Ni/Zn-based organic framework (Ni/Zn-MOF). The annealed MOF provides the stable carbon structure with 3D interconnection and prevents structural collapse during the charging and discharging process. The annealing causes the incorporation of intrinsic Ni^(3+) in the surface of NiO nanoparticles, providing more reaction active sites. The oxygen vacancies in ZnO and heterostructure interfaces between NiO and ZnO promote the charge transformation. Based on the aforementioned advantages, the Ni/ZnO nanocomposites exhibit excellent electrocatalytic performances for supercapacitors. The specific capacitance can reach to 807 F·g^(−1) at 1 A·g^(−1) in the studied electrodes. After 5,000 cycles at 10 A·g^(−1), the cyclic stability remains excellent at 86% of the initial capacitance. Moreover, the as-prepared asymmetric supercapacitor exhibits a high energy density of 30.6 W·h·kg^(−1) at power density of 398 W·kg^(−1). This study is expected to provide new insights into exploring the potential mechanism of catalyst action.

关键词： metal-organic frameworks ZnO-based nano-sponges surface vacancies supercapacitor electrochemical performance

Multifractal structure of the product measure of two independent general subordinators'occupation measures

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Science China Mathematics 2009年第8期52卷 1785-1795页

作者： KONG LingTao hu xiaoyu School of Mathematics Graduate University of the Chinese Academy of SciencesBeijing 100049China

In this paper, we mainly investigate the multifractal spectrum of the random measure derived from two independent general subordinators.

关键词： general subordinator occupation measure Hausdor measure multifractal spetrum

Role of Notch signaling in regulating innate immunity and inflammation in health and disease

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Protein & Cell 2016年第3期7卷 159-174页

作者： Yingli Shang Sinead Smith xiaoyu hu School of Medicine and Institute for Immunology Tsinghua University Beijing 100084 China Department of Clinical Medicine Trinity College Dublin Dublin 2 Ireland

The Notch signaling pathway is conserved from Drosophila to mammals and is critically involved in developmental processes. In the immune system, it has been established that Notch signaling regulates multiple steps of T and B cell development in both central and peripheral lymphoid organs. Relative to the well documented role of Notch signaling in lymphocyte development, less is known about its role in regulating myeloid lineage development and function, especially in the context of acute and chronic inflammation. In this review article, we will describe the evidence accumulated during the recent years to support a key regulatory role of the Notch pathway in innate immune and inflammatory responses and discuss the potential implications of such regulation for pathogenesis and therapy of inflammatory disorders.

关键词： inflammation innate immunity macrophages Notch signaling RBP-J

Virtual special issue:Supramolecular/macrocyclic chemistry

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Chinese Chemical Letters 2018年第12期29卷 1703-1705页

作者： xiaoyu hu Zhichao Pei School of Materials Science and Technology Nanjing University of Aeronautics and Astronautics College of Chemistry & Pharmacy Northwest A&F University

Welcome to this virtual special issue, which focuses on supramolecular/macrocyclic Chemistry. The beginnings of supramolecular chemistry can be traced back to 1967 with the identification of crown ethers by Pedersen [1], and being acknowledgement by the 1987 Nobel Prize to Lehn, Cram, and Pedersen for their leading discoveries in the host-guest systems [2]. Since these

关键词： Virtual special issue:Supramolecular/macrocyclic chemistry CB

Stretchable electromagnetic interference shielding and antenna for wireless strain sensing by anisotropic micron-steel-wire based conductive elastomers

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Chinese Physics B 2021年第1期30卷 578-585页

作者： xiaoyu hu Linlin Mou Zunfeng Liu State Key Laboratory of Medicinal Chemical Biology College of Pharmacy and Chemistryand Key Laboratory of Functional Polymer MaterialsNankai UniversityTianjin 300071China

We prepare stretchable elastic electromagnetic interference(EMI) shielding and stretchable antenna for wireless strain sensing using an elastic composite comprising commercial steel wool as a conducting element. The prepared elastic conductor shows anisotropic electrical properties in response to the external force. In the stretchable range, the electrical resistance abnormally decreases with the increase of tensile deformation. The EMI shielding effectiveness of the elastic conductor can reach above-30 d B under 80% tensile strain. The resonance frequency of the dipole antenna prepared by the elastic conductor is linearly correlated with the tensile strain, which can be used as a wireless strain sensor. The transmission efficiency is stable at about-15 d B when stretched to 50% strain, with attenuation less than 5%. The current research provides an effective solution for stretchable EMI shielding and wireless strain sensing integrated with signal transmission by an antenna.

关键词： conductive elastomer electromagnetic shielding dipole antenna strain sensor

TLE4 acts as a corepressor of Hes1 to inhibit inflammatory responses in macrophages

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Protein & Cell 2019年第4期10卷 300-305页

作者： Xiang Zhang xiaoyu Li Fei Ning Yingli Shang xiaoyu hu Institute for Immunology and School of Medicine Tsinghua University Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing China School of Life Sciences Tsinghua University Beijing China Institute for Immunology and School of Medicine Tsinghua University Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing China Institute for Immunology and School of Medicine Tsinghua University Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing China School of Life Sciences Tsinghua University Beijing China College of Veterinary Medicine Shandong Agricultural University Taian China Institute for Immunology and School of Medicine Tsinghua University Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing ChinaInstitute for Immunology and School of Medicine Tsinghua University Beijing China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing China Collaborative Innovation Center for Biotherapy Tsinghua Universi

Macrophages play a key role in maintaining homeostasis and in mounti ng compete nt immune *** stimulation,one of the key effector functions of activated macrophages is production of inflammatory cytokines including interleukin 6(IL-6)and interleukin 12(IL-12).IL-6 and IL-12 are important for transition from innate to adaptive immunity,and thus essential for host defense against multiple pathogens(Kishimoto,2005;Trinchieri,2003).

关键词： Macrophages key role compete

The fractal structures of the exceptional sets of Lévy processes

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Science China Mathematics 2009年第7期52卷 1459-1466页

作者： KONG LingTao SHEN Dan hu xiaoyu School of Mathematical Science Graduate University of the Chinese Academy of SciencesBeijing 100049China

In this paper we review some results on the fractal geometry properties of the sets of thick points,thin points,fast points and slow points derived from Lévy processes.

关键词： thick points thin points Hausdorff dimension 28A80 60G17

Cooperative Privacy Provisioning for Energy Harvesting Based Cognitive Multi-Relay Networks

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China Communications 2020年第2期17卷 125-137页

作者： Dawei Wang Wei Liang xiaoyu hu Daosen Zhai Di Zhang School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710072China National Mobile Communications Research Laboratory Southeast UniversityNanjing 210096China Chinese Flight Test Establishment Xi’an 710089China

In order to provide privacy provisioning for the secondary information,we propose an energy harvesting based secure transmission scheme for the cognitive multi-relay *** the proposed scheme,two secondary relays harvest energy to power the secondary transmitter and assist the secondary secure transmission without interfere the secondary ***,the proposed secure transmission policy is implemented into two *** the first phase,the secondary transmitter transmits the secrecy information and jamming signal through the power split *** harvesting energy from a fraction of received radio-frequency signals,one secondary relay adopts the amplify-and-forward relay protocol to assist the secondary secure transmission and the other secondary relay just forwards the new designed jamming signal to protect the secondary privacy information and degrade the jamming interference at the secondary *** the proposed scheme,we first analyze the average secrecy rate,the secondary secrecy outage probability,and the ergodic secrecy rate,and derive their closed-form *** the above results,we optimally allocate the transmission power such that the secrecy rate is maximized under the secrecy outage probability *** the optimization problem,an AI based simulated annealing algorithm is proposed to allocate the transmit *** results are presented to validate the performance analytical results and show the performance superiority of the proposed scheme in terms of the average secrecy rate.

关键词： cognitive radio networks energy harvesting relay security