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Origin of superior pseudocapacitive mechanism of transition metal nitrides

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Journal of Energy Chemistry 2022年第6期31卷 561-568,I0016页

作者： Chao Huang Ping Qin Dan Li Qingdong ruan Hao Song Liangliang Liu Yuzheng Wu Yinghe Ma Qingwei Li Kaifu huo Paul K.Chu Department of Physics Department of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong 999077China Department of Physics Hong Kong Baptist University(HKBU)Kowloon TongHong Kong 999077China The State Key Laboratory of Refractories and Metallurgy Institute of Advanced Materials and NanotechnologyWuhan University of Science and TechnologyWuhan 430081HubeiChina Wuhan National Laboratory for Optoelectronics(WNLO) School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan 430074HubeiChina Advanced Research Institute for Multidisciplinary Science Qilu University of Technology(Shandong Academy of Sciences)Jinan 250307ShandongChina

Large-scale deployment of Internet of Things (IoT),a revolutionary innovation for a better world,is hampered by the limitation of energy *** transition metal nitride (TMN)-based micro-supercapacitors is a possible solution by taking advantage of the high conductivity,large specific capacitance,and large tap density of the ***,the pseudocapacitive storage mechanism of TMNs is still unclear consequently impeding the design of ***,the functions and mechanism of TMNs with different metal oxynitride (TMNO_(x)) concentrations in pseudocapacitive electrodes are investigated systematically by in situ Raman scattering,ex situ X-ray photoelectron spectroscopy,as well as ion isolation and substitution cyclic *** is found that the specific capacitances of TMNs depend on the TMNO_(x) concentrations and the N–M–O site is responsible for the large pseudocapacitance via the Faradic reaction between TMNO_(x) and OH^(-).Our study elucidates the mechanism pertaining to pseudocapacitive charge storage of TMNs and provides insights into the design and optimization of TMNO_(x) as well as other electrode materials for pseudocapacitors.

关键词： Internet of Things(IoT) Transition metal nitride(TMN) Metal oxynitride Supercapacitors

Breaking Through Bottlenecks for Thermally Conductive Polymer Composites:A Perspective for Intrinsic Thermal Conductivity,Interfacial Thermal Resistance and Theoretics

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Nano-Micro Letters 2021年第7期13卷 118-126页

作者： junwei Gu Kunpeng ruan MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions Shaanxi Key Laboratory of Macromolecular Science and TechnologySchool of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072P.R.China

Rapid development of energy,electrical and electronic technologies has put forward higher requirements for the thermal conductivities of polymers and their ***,the thermal conductivity coefficient(λ)values of prepared thermally conductive polymer composites are still difficult to achieve expectations,which has become the bottleneck in the fields of thermally conductive polymer *** at that,based on the accumulation of the previous research works by related researchers and our research group,this paper proposes three possible directions for breaking through the bottlenecks:(1)preparing and synthesizing intrinsically thermally conductive polymers,(2)reducing the interfacial thermal resistance in thermally conductive polymer composites,and(3)establishing suitable thermal conduction models and studying inner thermal conduction mechanism to guide experimental ***,the future development trends of the three above-mentioned directions are foreseen,hoping to provide certain basis and guidance for the preparation,researches and development of thermally conductive polymers and their composites.

关键词： Thermally conductive polymer composites Intrinsic thermal conductivity Interfacial thermal resistance Thermal conduction models Thermal conduction mechanisms

Probing New Physics at future electron positron Higgs factories via e^+e^-→ Zγ process

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Science China(Physics,Mechanics & Astronomy) 2021年第2期64卷 29-30页

作者： ManQi ruan Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China

Direct searches and precision measurements are the two main complementary methods for identifying New Physics at *** next generation of e^+e^-Higgs factories,including CEPC,FCC-ee,ILC and CLIC,is designed to deliver m... 详细信息

关键词： processes. Higgs positron

Experimental and Theoretical Investigation of the Valence Orbital Binding Energy Spectra and Momentum Distributions of C_(4)H_(10) Molecule

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Chinese Physics Letters 1999年第2期16卷 104-106页

作者： PANG Wen-ning GAO jun-fang ruan Cun-jun GAO Nai-fei SHANG Ren-cheng Laboratory for Polarized Physics Department of Applied PhysicsTsinghua UniversityBeijing 100084

The C_(4)H_(10) molecule has been studied by high resolution(e,2e)spectrometer at a total energy of 1200eV and using symmetric non-coplanar *** binding energy spectra ranging up to 32eV are measured at out-of-plane azimuthal angles from 0° to 22° corresponding to target electron momentum from about 0.1 to 1.8 *** binding energy spectra and electron momentum distributions obtained for the valence orbitals are compared with the theoretical result calculated by using restricted Hartree-Fock and density functional theory *** agreement between theory and experiment of orbital electron momentum distributions is generally good.

关键词： methods. momentum Hartree

Orbit determination and time synchronization for BDS-3 satellites with raw inter-satellite link ranging observations

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Satellite Navigation 2020年第1期1卷 81-92页

作者： Rengui ruan Xiaolin Jia Laiping Feng jun Zhu Zongbo Huyan Jie Li Ziqing Wei Xi’an Research Institute of Surveying and Mapping Xi’an 710054China State Key Laboratory of Geo-information Engineering Xi’an 710054China Information Engineering University Zhengzhou 450001China China Xi’an Satellite Control Center Xi’an 710043China State Key Laboratory of Astronautic Dynamics Xi’an 710043China

To provide competitive global positioning and timing services under the condition that monitoring stations are confined to Chinese territory,inter-satellite link(ISL)technology is used by the third-generation BeiDou Navigation Satellite System(BDS-3).The ISL,together with the dual one-way links between satellites and anchor stations,may enable autonomous navigation for *** this paper,we propose a general observation model for orbit determination(OD)and time synchronization(TS)directly using non-simultaneous observations,such as raw ISL *** the proposed model,satellite orbits,clocks,and hardware delay biases of ISL equipment can be determined simultaneously by jointly processing inter-satellite one-way pseudorange data and observation data from ground monitoring ***,autonomous OD and TS are also achievable with one-way pseudorange data from anchor stations and *** from eight BDS-3 satellites,two anchor stations,and seven monitoring stations located in China were collected to validate the proposed *** is shown that by jointly processing data from the ISL and seven monitoring stations,the RMS of overlap orbit differences in radial direction is 0.019 m,the overlap clock difference(95%)is 0.185 ns,and the stability of the estimated hardware delay biases for each satellite is greater than 0.5 *** with the results obtained with the seven stations,the improvements of orbits in radial direction and clocks are 95.7%and 90.5%,*** the hardware delay biases are fixed to predetermined values,the accuracies of orbits and clocks are further *** jointly processing pseudoranges from the satellites and the two anchor stations,the RMS of overlap orbit differences is 0.017 m in the radial direction,and the overlap clock difference(95%)is 0.037 *** has also been demonstrated that under the condition of one-way ranging links,the accuracies of orbits and clocks obtained by the above two modes are still signi

关键词： BDS-3 Inter-satellite link Anchor station Orbit determination Time synchronization Hardware delay bias

Influence of endogenous ciliary neurotrophic factor on neural differentiation of adult rat hippocampal progenitors

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Neural Regeneration Research 2013年第4期8卷 301-312页

作者： jun Ding Zhili He Juan ruan Ying Liu Chengxin Gong Shenggang Sun Honghui Chen Department of Neurology Union HospitalTongji Medical CollegeHuazhong University of Science and Technology Mental Health Center Tongji Medical CollegeHuazhong University of Science and Technology New York State Institute for Basic Research in Developmental Disabilities Staten IslandNYUSA

Ciliary neurotrophic factor is the only known neurotrophic factor that can promote differentiation of hippocampal neural progenitor cells to glial cells and neurons in adult rats. This process is similar to spontaneous differentiation. Therefore, ciliary neurotrophic factor may be involved in spontaneous differentiation of neural stem cells. To verify this hypothesis, the present study isolated neural progenitor cells from adult male rats and cultured them in vitro. Results showed that when neural progenitor cells were cultured in the absence of mitogen fibroblast growth factor-2 or epidermal growth factor, they underwent spontaneous differentiation into neurons and glial cells. Western blot and immunocytochemical staining showed that exogenous ciliary neurotrophic factor strongly induced adult hippocampal progenitor cells to differentiate into neurons and glial cells. Moreover, passage 4 adult hippocampal progenitor cells expressed high levels of endogenous ciliary neurotrophic factor, and a neutralizing antibody against ciliary neurotrophic factor prevented the spontaneous neuronal and glial differentiation of adult hippocampal progenitor cells. These results suggest that the spontaneous differentiation of adult hippocampal progenitor cells is mediated partially by endogenous ciliary neurotrophic factor.

关键词： neural regeneration stem cells spontaneous differentiation neural progenitor cells endogenous neurotrophic factors ciliary neurotrophic factor regeneration grants-supported paper photographs-containing paper neuroregeneration

Improved HardNet and Stricter Outlier Filtering to Guide Reliable Matching

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Computers, Materials & Continua 2023年第6期75卷 4785-4803页

作者： Meng Xu Chen Shen jun Zhang Zhipeng Wang Zhiwei ruan Stefan Poslad Pengfei Xu Queen Mary University of London LondonE14NSUK Didi Chuxing Beijing100193China Peking University Beijing100091China

As the fundamental problem in the computer vision area,image matching has wide applications in pose estimation,3D reconstruction,image retrieval,*** from the influence of external factors,the process of image matching using classical local detectors,e.g.,scale-invariant feature transform(SIFT),and the outlier filtering approaches,e.g.,Random sample consensus(RANSAC),show high computation speed and pool robustness under changing illumination and viewpoints conditions,while image matching approaches with deep learning strategy(such as HardNet,OANet)display reliable achievements in large-scale datasets with challenging ***,the past learning-based approaches are limited to the distinction and quality of the dataset and the training strategy in the image-matching *** an extension of the previous conference paper,this paper proposes an accurate and robust image matching approach using fewer training data in an end-to-end manner,which could be used to estimate the pose error This research first proposes a novel dataset cleaning and construction strategy to eliminate the noise and improve the training efficiency;Secondly,a novel loss named quadratic hinge triplet loss(QHT)is proposed to gather more effective and stable feature matching;Thirdly,in the outlier filtering process,the stricter OANet and bundle adjustment are applied for judging samples by adding the epipolar distance constraint and triangulation constraint to generate more outstanding matches;Finally,to recall the matching pairs,dynamic guided matching is used and then submit the inliers after the PyRANSAC *** evaluation metrics are used and reported in the 1st place in the Track1 of CVPR Image-Matching Challenge *** results show that the proposed method has advanced performance in large-scale and challenging Phototourism benchmark.

关键词： SIFT image matching dynamic guided matching HardNet challenging environments large scale pose accuracy OANet

Nonabelian Gauged Linear Sigma Model

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Chinese Annals of Mathematics,Series B 2017年第4期38卷 963-984页

作者： Yongbin ruan Department of Mathematics University of Michigan Ann Arbor MI 48105 USA.

The gauged linear sigma model （GLSM for short） is a 2d quantum field theory introduced by Witten twenty years ago. Since then, it has been investigated extensively in physics by Hori and others. Recently, an algebro-geometric theory （for both abelian and nonabelian GLSMs） was developed by the author and his collaborators so that he can start to rigorously compute its invariants and check against physical predications. The abelian GLSM was relatively better understood and is the focus of current mathematical investigation. In this article, the author would like to look over the horizon and consider the nonabelian GLSM. The nonabelian case possesses some new features unavailable to the ahelian GLSM. To aid the future mathematical development, the author surveys some of the key problems inspired by physics in the nonabelian GLSM.

关键词： GIT quotient Stability condition GLSM

Clozapine is strongly associated with the risk of pneumonia and inflammation

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General Psychiatry 2020年第2期33卷 66-72页

作者： Jose de Leon Can-jun ruan Helene Verdoux Chuanyue Wang University of Kentucky Mental Health Research Center Eastern State HospitalLexingtonKentuckyUSA Beijing Key Laboratory of Mental Disorders Beijing Anding HospitalBeijingChina Inserm Bordeaux Population Health Research CenterUniversity of Bordeaux Faculty of Medical SciencesBordeauxAquitaineFrance

Clinicians need to remember that(1)systemic inflammations can increase clozapine level;(2)clozapine,by itself,can cause inflammation,particularly during titration that is too rapid for that patient;(3)clozapine may increase the risk of infection;and(4)more specifically,clozapine may be particularly strongly associated with the risk of *** appears to be associated with high mortality in clozapine patients around the *** who are alert to the risk of pneumonia in clozapine patients may significantly decrease mortality in clozapine *** is no data on COVID-19 infections in clozapine patients,but based on what we know about clozapine pharmacology,we can hypothesise that clozapine,possibly by impairing immunological mechanisms,may increase the risk of pneumonia in infected *** importantly,once fever and/or pneumonia develops,the clozapine dose should be cut in half to decrease the risk of clozapine *** there is any doubt that in spite of halving the dose there are still signs of clozapine intoxication,completely stopping clozapine may be *** the signs of inflammation and fever have disappeared,the clozapine dose can be increased to the prior dosage level.

关键词： inflammation pneumonia mortality