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Sustainable micro-activation of dissolved oxygen driving pollutant conversion on Mo-enhanced zinc sulfide surface in natural conditions

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Fundamental Research 2023年第3期3卷 422-429页

作者： Chao Lu Qian Fang chun Hu lai Lyu Key Laboratory for Water Quality and Conservation of the Pearl River Delta Ministry of EducationInstitute of Environmental Research at Greater BayGuangzhou UniversityGuangzhou 510006China Institute of Rural Revitalization Guangzhou UniversityGuangzhou 510006China

The activation of inert oxygen(O_(2))often consumes enormous amounts of energy and resources,which is a global challenge in the field of environmental remediation and fuel *** pollutants are abundant in electrons and are promising alternative electron ***,we implement sustainable microactivation of dissolved oxygen(DO)by using the electrons and adsorption energy of pollutants by creating a nonequilibrium microsurface on nanoparticle-integrated molybdenum(Mo)lattice-doped zinc sulfide(ZnS)composites(MZS-1).Organic pollutants were quickly removed by DO microactivation in the MZS-1 system under natural conditions without any additional energy or electron *** turnover frequency(TOF,per Mo atom basis)is 5 orders of magnitude higher than those of homogeneous *** and electronic characterization technologies reveal the change in the crystalline phase(Zn-S-Mo)and the activation of π-electrons on six-membered rings of ZnS after Mo doping,which results in the formation of a nonequilibrium microsurface on *** is the key for the strong interfacial interaction and directional electron transfer from pollutants to MZS-1 through the delocalized π-π conjugation effect and from MZS-1 to DO via Zn-S-Mo,as demonstrated by electron paramagnetic resonance(EPR)techniques and density functional theory(DFT)*** process achieves the efficient use of pollutants and the low-energy activation of O_(2) through the construction of a nonequilibrium microsurface,which shows new significance for water treatment.

关键词： Wastewater treatment microelectric field surface construction Fenton-like reaction Oxygen activation Pollutant electron donation

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Yap1 plays a protective role in suppressing free fatty acid-induced apoptosis and promoting beta-cell survival

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Protein & Cell 2016年第5期7卷 362-372页

作者： Yaoting Deng Yurika Matsui Wenfei Pan Qiu Li Zhi-chun lai Department of Biochemistry and Molecular Biology Pennsylvania State University University Park PA 16802 USA Intercollege Graduate Degree Program in Molecular Cellular and Integrative Biosciences Pennsylvania State University University Park PA 16802 USA Shandong Provincial Hospital Affiliated to Shandong University Jinan 250021 China Department of Biology Pennsylvania State University University Park PA 16802 USA

Mammalian pancreatic β-cells play a pivotal role in development and glucose homeostasis through the production and secretion of insulin. Functional failure or decrease in β-cell number leads to type 2 diabetes （T2D）. Despite the physiological importance of β-cells, the viability of β-cells is often challenged mainly due to its poor ability to adapt to their changing microenvironment. One of the factors that negatively affect β-cell viability is high concentration of free fatty acids （FFAs） such as palmitate. In this work, we demonstrated that Yes-associated protein （Yap1） is activated when β-cells are treated with palmitate. Our loss- and gain-of-function analyses using rodent insulinoma cell lines revealed that Yap1 suppresses palmitate-induced apoptosis in β-cells without regulating their proliferation. We also found that upon palmitate treatment, re-arrangement of F-actin mediates Yap1 activation. Palmitate treatment increases expression of one of the Yap1 target genes, connective tissue growth factor （CTGF）. Our gain-offunction analysis with CTGF suggests CTGF may be the downstream factor of Yap1 in the protective mechanism against FFA-induced apoptosis.

关键词： β-cell CTGF F-actin free fatty acid Hipposignaling Yap1

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Tightly Secure Public-Key Cryptographic Schemes from One-More Assumptions

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Journal of Computer Science & Technology 2019年第6期34卷 1366-1379页

作者： Ge Wu Jian-Chang lai Fu-chun Guo Willy Susilo Fu-Tai Zhang School of Cyber Science and Engineering Southeast UniversityNanjing 211189China Institute of Cybersecurity and Cryptology School of Computing and Information Technology University of WollongongWollongong 2522Australia Purple Mountain Laboratories Nanjing 211111China School of Mathematics and Computer Science Fujian Normal UniversityFuzhou 350117China School of Computer Science and Technology Nanjing Normal UniversityNanjing 210023China

A tightly secure cryptographic scheme refers to a construction with a tight security reduction to a hardness assumption,where the reduction loss is a small constant.A scheme with tight security is preferred in practice since it could be implemented using a smaller parameter to improve ***,Bader et al.(EUROCRYPT 2016)have proposed a comprehensive study on the impossible tight security reductions for certain(e.g.,key-unique)public-key cryptographic schemes in the multi-user with adaptive corruptions(MU-C)setting built upon non-interactive *** assumptions of one-more version,such as one-more computational Diffie-Hellman(n-CDH),are variants of the standard assumptions and have found various ***,whether it is possible to have tightly secure key-unique schemes from the one-more assumptions or the impossible tight reduction results also hold for these assumptions remains *** this paper,we give affirmative answers to the above question,i.e.,we can have efficient key-unique public-key cryptographic schemes with tight security built upon the one-more ***,we propose a digital signature scheme and an encryption scheme,both of which are key-unique and have tight MU-C security under the one-more computational Diffie-Hellman(n-CDH)*** results also reflect from another aspect that there indeed exists a gap between the standard assumptions and their one-more version counterparts.

关键词： public-key cryptography multi-user setting tight security one-more assumption

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The deconvolution of lunar brightness temperature based on the maximum entropy method using Chang'e-2 microwave data

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Research in Astronomy and Astrophysics 2015年第2期15卷 293-304页

作者： Shu-Guo Xing Yan Su Jian-Qing Feng chun-lai Li National Astronomical Observatories Chinese Academy of Sciences

A passive and multi-channel microwave sounder onboard the Chang＇e-2 orbiter has successfully acquired microwave observations of the lunar surface and subsurface structure. Compared with the Chang＇e-1 orbiter, the Chang＇e-2 orbiter obtained more accurate and comprehensive microwave brightness temperature data, which are helpful for further research. Since there is a close relationship between mi- crowave brightness temperature data and some related properties of the lunar regolith, such as the thickness, temperature and dielectric constant, precise and high resolution brightness temperature data are necessary for such research. However, through the detection mechanism of the microwave sounder, the brightness temperature data ac- quired from the microwave sounder are weighted by the antenna radiation pattern, so the data are the convolution of the antenna radiation pattern with the lunar brightness temperature. In order to obtain the real lunar brightness temperature, a deconvolution method is needed. The aim of this paper is to solve the problem associated with per- forming deconvolution of the lunar brightness temperature. In this study, we introduce the maximum entropy method （MEM） to process the brightness temperature data and achieve excellent results. The paper mainly includes the following aspects： first, we introduce the principle of the MEM; second, through a series of simulations, the MEM has been verified as an efficient deconvolution method; and third, the MEM is used to process the Chang＇e-2 microwave data and the results are significant.

关键词： space vehicles instruments: microwave sounder Moon: brightness temperature methods: maximum entropy method

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Electric Vehicle Charging Scheduling Strategy for Supporting Load Flattening Under Uncertain Electric Vehicle Departures

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Journal of Modern Power Systems and Clean Energy 2023年第5期11卷 1634-1645页

作者： Han Wang Mengge Shi Peng Xie chun Sing lai Kang Li Youwei Jia IEEE Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen 518055China School of Electronic and Electrical Engineering University of LeedsLeedsLS29JTUK Brunel Interdisciplinary Power Systems Research Centre Department of Electronic and Electrical EngineeringBrunel University LondonLondon UB83PHUK

The scheduled electric vehicle(EV)charging flexibility has great potential in supporting the operation of power systems,yet achieving such benefits is challenged by the uncertain and user-dependent nature of EV charging *** research primarily focuses on modeling the uncertain EV arrival and battery status yet rarely discusses the uncertainty in EV *** this paper,we investigate the EV charging scheduling strategy to support load flattening at the distribution level of the utility grid under uncertain EV departures.A holistic methodology is proposed to formulate the unexpected trip uncertainty and mitigate its negative *** ensure computational efficiency when large EV fleets are involved,a distributed solution framework is developed based on the alternating direction method of multipliers(ADMM)*** numerical results reveal that unexpected trips can severely damage user convenience in terms of EV energy *** is further confirmed that by applying the proposed methodology,the resultant critical and sub-critical user convenience losses due to scheduled charging are reduced significantly by 83.5%and 70.5%,respectively,whereas the load flattening performance is merely sacrificed by 17%.

关键词： Electric vehicle(EV) EV fleet uncertain departure user convenience distributed solution

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Detection Capability Evaluation of Lunar mineralogical Spectrometer:Results from Ground Experimental Data

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Research in Astronomy and Astrophysics 2023年第12期23卷 164-174页

作者： Fang Gao Bin Liu Xin Ren Da-Wei Liu chun-lai Li Key Laboratory of Lunar and Deep Space Exploration Chinese Academy of SciencesBeijing 100101China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

The Chang’E-6 mission will first land on the far side of the moon and bring lunar samples *** a hyperspectral imager aboard the Chang’E-6 lander,the Lunar mineralogical Spectrometer(LMS),will achieve the goal of spectral detection and mineral composition analysis in the sampling area,and the data of LMS will also be compared with the results of the returned sample laboratory *** and near-infrared hyperspectral remote sensing is an effective tool for lunar minerals identification and *** ground validation experiment can be used to evaluate the detection ability of the *** to the modal abundances of lunar minerals and glasses of APOLLO samples,binary mixed samples,ternary mixed samples,and seven-membered mixed samples were *** samples were ground and stirred homogeneous to about 200 mesh(median particle size about 75μm),to simulate the soil state of the lunar *** the laboratory ambient condition,the 480–3200 nm spectral data of the samples were acquired using the Engineering Qualification Model(EQM)of Chang’E-5 LMS,the performance of which is consistent with the flight model of Chang’E-6 *** fitting the mixed samples’spectral data of the EQM using the Modified Gaussian Methods,the following conclusions can be drawn:The subtle spectral changes of mixed samples can be *** modal abundance of low-Ca pyroxene,high-Ca pyroxene,and plagioclase can be derived based on the spectral parameters such as absorption position,depth or width of the mixed samples,and the correlation coefficients R2are better than 82%,indicating that the LMS has good quantitative detection capability.

关键词： methods data analysis-techniques spectroscopic-Moon

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Three-dimensional printed talar prosthesis with biological function for giant cell tumor of the talus:A case report and review of the literature

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World Journal of Clinical Cases 2021年第13期9卷 3147-3156页

作者： Qian-Dong Yang mi-Duo Mu Xu Tao Kang-lai Tang Sports Medicine Center The First Affiliated Hospital of Army Medical UniversityChongqing 400038China

BACKGROUND Giant cell tumors(GCT)are most commonly seen in the distal *** tumors are uncommon in the small bones of the hand and feet,and a very few cases have been reported.A giant cell tumor of the talus is rarely seen clinically and could be a challenge to *** SUMMARY We report a rare case of GCT of the talus in one patient who underwent a new reconstructive surgery technique using a three-dimensional(3D)printing talar *** prosthesis shape was designed by tomographic image processing and segmentation using technology to match the intact side by mirror symmetry with 3D post-processing *** patient recovered nearly full range of motion of the ankle after 6 *** visual analogue scale and American Orthopaedic Foot and Ankle Society scores were 1 and 89 points,*** We demonstrated that 3D printing of a talar prosthesis is a beneficial option for GCT of the talus.

关键词： Three-dimensional printing technology Giant cell tumor Talar prosthesis Case report

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Surface decoration of mesocarbon microbeads with multifunctional TiNbO_(4-x)@C coating layer as high rate and stable anode of Li-ion batteries

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Rare Metals 2024年第5期43卷 2053-2066页

作者： Jia-Mei lai Zhi-min Zou Yu Bai Yu-Tao Xing chun-Hai Jiang Fujian Provincial Key Laboratory of Functional Materials and Applications Institute of Advanced Energy MaterialsSchool of Materials Science and EngineeringXiamen University of TechnologyXiamen 361024China Shanghai XFH Science and Technology Development Co. Ltd.Shanghai 200949China Fujian XFH New Energy Materials Co. Ltd.Yong'an 366000China Shenzhen XFH Science and Technology Co. Ltd.Shenzhen 518071China Laboratorio de microscopia Eletronica de Alta Resolucao Centro de Caracterizagao Avangada Para a Industria de Petroleo(LaMAR/CAIPE)Universidade Federal FluminenseNiteroiRJ 24210-346Brazil

Surface modification of graphite anode with electroactive matters has been proven of a more practical strategy in enhancing the performance of Li-ion batteries than exploring alternative novel anode ***,rutile TiNbO_(4-x) nanoparticles with a tunnel structure are employed as multifunctional decoration substances in combination with a carbon coating layer to improve the rate and cycle properties of mesocarbon microbeads(MCMBs).As compared to pristine MCMB,the Li^(+)diffusion coefficients of the composite anodes are enhanced due to the synergistic effect of TiNbO_(4-x)@***,the overcharge and voltage polarization of the composite anodes at high rate are obviously minimized due to the current sharing effect of the high-potential TiNbO_(4-x).Moreover,the amorphous Li_(y)TiNbO_(4-x) converted from TiNbO_(4-x) in the initial lithiation process can deliver pseudocapacitive capacity to the composite anodes from the second *** of these functions of TiNbO_(4-x)@Ccoating layer have directly contributed to the improved rate and cycle performance of the MCMB/TiNbO_(4-x)@C composite *** one containing 12.0 wt%TiNbO_(4-x) exhibits a high reversible specific capacity of 118 m Ah·g^(-1)at 10C(1C=372 m A·g^(-1)),together with a high capacity retention of 90.9%after 300 cycles at 3C,which are all much superior to those of pristine MCMB.

关键词： Li-ion batteries MCMB TiNbO_(4-x)@C Surface decoration Rate capability

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Photoelectrochemical performance of TiO_(2) nanotube arrays by in situ decoration with different initial states

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Rare Metals 2021年第3期40卷 720-727页

作者： Fan Li chun-lai Wang Sheng Ding Kun Yang Chang-Jun Liu Feng Tian Institute of Medical Support Technology Academy of Military SciencesTianjin 300161China

Here,carbon dots(CDs) only or nanocomposites of CDs and TiO_(2)(CDs-TiO_(2)) were used to decorate titanium dioxide nanotube arrays(TiO_(2)NTs) in situ by solvothermal *** initial states of TiO_(2)NTs were prepared for contrast,including the amorphous TiO_(2)NTs(TiO_(2)NTs-0) just experienced anodic oxidation process and that further calcined TiO_(2)NTs(TiO_(2)NTs-450).It was found that the newborn CDs or CDs-TiO_(2)were more likely to anchor on TiO_(2)NTs-0 than the calcined TiO_(2)NTs-450,and more Ti-C bonds were found in the composites which were derived from TiO_(2)NTs-0 after the solvothermal *** evident photocurrent could be demonstrated for either CDs or CDs-TiO_(2)decorated TiO_(2)NTs once exposed to visible *** CDs-TiO_(2)NTs-0 showed the highest photocurrent density(4.51 μA·cm^(-2)).However,the results of photodegradation measurements revealed that CDs-TiO_(2)decorated TiO_(2)NTs with different initial states(especially CDs-TiO_(2)-TiO_(2)NTs-0) showed more excellent photocatalytic activity under both ultraviolet(UV) and visible light illumination.

关键词： Titanium dioxide nanotube arrays Carbon dots Solvothermal technique Photocatalysis

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Analysis on unit maximum capacity of orthogonal multiple watermarking for multimedia signals in B5G wireless communications

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Digital Communications and Networks 2024年第1期10卷 38-44页

作者： mianjie Li Senfeng lai Jiao Wang Zhihong Tian Nadra Guizani Xiaojiang Du chun Shan School of Electronics and Information Guangdong Polytechnic Normal UniversityGuangzhou510665China Cyberspace Institute of Advanced Technology Guangzhou UniversityGuangzhou510006China Schoolof Electrical Engineering and Computer Science Washington State UniversityPullmanWA99164USA Department of Computer and Information Science Temple UniversityPhiladelphiaPA19122USA

Beyond-5G(B5G)aims to meet the growing demands of mobile traffic and expand the communication *** that intelligent applications to B5G wireless communications will involve security issues regarding user data and operational data,this paper analyzes the maximum capacity of the multi-watermarking method for multimedia signal hiding as a means of alleviating the information security problem of *** multiwatermarking process employs spread transform dither *** the watermarking procedure,Gram-Schmidt orthogonalization is used to obtain the multiple spreading ***,multiple watermarks can be simultaneously embedded into the same position of a multimedia ***,the multiple watermarks can be extracted without affecting one another during the extraction *** analyze the effect of the size of the spreading vector on the unit maximum capacity,and consequently derive the theoretical relationship between the size of the spreading vector and the unit maximum capacity.A number of experiments are conducted to determine the optimal parameter values for maximum robustness on the premise of high capacity and good imperceptibility.

关键词： B5G Multimedia information security Spread transform dither modulation Spreading vector measurement Unit maximum capacity

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