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Pressure-induced emission(PIE)in halide perovskites toward promising applications in scintillators and solid-state lighting

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Aggregate 2024年第1期5卷 9-15页

作者： Wenya Zhao Guanjun xiao Bo zou State Key Laboratory of Superhard Materials College of PhysicsJilin UniversityChangchunChina

High-pressure chemistry has provided a huge boost to the development of scientific ***-induced emission(PIE)in halide perovskites is gradually showing its unique charm in both pressure sensing and optoelectronic device ***,the PIE retention of halide perovskites under ambient conditions is of great commercial ***,we mainly focus on the potential applications of PIE and PIE retention in metal halide perovskites for scintillators and solid-state *** on the performance requirements of scintillator and single-component white light-emitting diodes(WLEDs),the significance of PIE and PIE retention is critically clarified,aiming to design and synthesize materials used for high-performance optoelectronic *** perspective not only demonstrates promising applications of PIE in the fields of scintillators and WLEDs,but also provides potential applications in display imaging and anti-counterfeiting of PIE ***,solving the scientific disputes that exist under ambient conditions is also simply discussed as an outlook by introducing high-pressure dimension to produce PIE.

关键词： halide perovskites high pressure light-emitting diode pressure-induced emission scintillators solidstate lighting

Regulation of influenza virus infection by microRNAs

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Journal of Integrative Agriculture 2019年第7期18卷 1421-1427页

作者： zou Zhong GONG Wen-xiao HUANG Kun SUN xiao-mei JIN Mei-lin State Key Laboratory of Agricultural Microbiology Huazhong Agricultural UniversityWuhan 430070P R.China College of Veterinary Medicine Huazhong Agricultural UniversityWuhan 430070P.R. China Key Laboratory of Development of Veterinary Diagnostic Products Ministry of Agriculture and Rural AffairsWuhan 430070P.R. China

MicroRNAs(miRNAs) are small noncoding RNAs of 18–25 nucleotides(nt) in length that represent key regulators of many normal cellular functions through the inhibition of mRNA translation and mRNA *** date,over 2 500 mature miRNAs have been identified in plants,animals and several types of *** A virus(IAV),which is a negativesense,single-stranded RNA virus,does not encode viral ***,IAV infection can alter the expression of host miRNAs,either in cell culture or in *** turn,host miRNAs regulate IAV life cycle through directly binding to IAV genome or indirectly targeting host factors associated with viral *** this review,we briefly summarized the role and significance of miRNA in relation to IAV *** the role of cellular miRNAs during viral infection may be beneficial to the identification of novel therapeutic strategies to block IAV replication.

关键词： microRNAs influenza A virus pathogenesis therapeutic strategies

Early Screening of Ovarian Cancer

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Acta Mathematicae Applicatae Sinica 2017年第2期33卷 463-474页

作者： xiao HAN Chen-chen zou Xiang-zhong FANG School of Mathematical Sciences Peking Unviersity School of Mathematics and Statistics Qingdao Unviersity

The mortality of ovarian cancer is higher than any other female genital malignant tumors, while there exists a strong correlation between early-stage detection and cure for it. CA125 and HE4 are two most common and effective serum markers in recent screening research of ovarian cancer. This paper derives a sequential screening strategy for ovarian cancer by jointly modeling the longitudinal profiles of CA125 and HE4. We construct a Bayesian hierarchical mixture model with changepoint, and propose two approaches for diagnosis： the risk of cancer index and the hypothesis test on the true incidence time. We simulated a 7-year sequential screening research and compared with the standard approach based on a fixed cutoff level. Our approach achieves a 15% higher sensitivity for a fixed specificity, indicating that the sequential strategy combining multiple markers is more effective in the early-stage detection of ovarian cancer.

关键词： longitudinal hierarchical MCMC ovarian caner sequential screening

Advances of Metal-Organic Frameworks in Energy and Environmental Applications

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Chinese Journal of Chemistry 2017年第10期35卷 1501-1511页

作者： Ying Li Bing zou Anshan xiao Hongxing Zhang State Key Laboratory of Safety and Control for Chemicals SINOPEC Safety Engineering Institute Qingdao Shandong 266071 China

Nowadays, energy shortage and environmental pollution issues are increasingly severe and urgent to be solved. The effective storage and use of environmentally friendly fuels and removal of harmful gases from the environment are great challenges and of great importance both for the environment protection and for human health. Porous met- al-organic frameworks （MOFs） are highly ordered crystalline materials formed by the self-assembly process of metal ions and organic ligands. Their good features such as ultrahigh porosity, large surface area, structural diversity and functionalities make them promising candidates for applications in energy and environmental fields. MOF thin films and MOF composites have also been investigated to further enhance the properties and introduce new func- tionalities. This review provides an overview of the synthesis methods of pristine MOFs, MOF thin films and MOF composites, and significant advances of MOFs in energy and environment applications such as energy storage （H2, CH4）, CO2 capture and separation, adsorption removal and sensing of harmful gases in the environment.

关键词： metal-organic frameworks energy storage C02 capture adsorption removal sensing

Enhancing point defect scattering in copper antimony selenides via Sm and S Co-doping

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Rare Metals 2018年第4期37卷 290-299页

作者： Tian-Hua zou Wen-Jie Xie Marc Widenmeyer Xing-Xing xiao xiao-Yin Qin Anke Weidenkaff Institute for Materials Science University of Stuttgart 70569Stuttgart Germany Key Laboratory of Materials Physics Institute of Solid StatePhysics Chinese Academy of Sciences Hefei 230031 China

Doping- and alloying-induced point defects lead to mass and strain field fluctuations which can be used as effective strategies to decrease the lattice thermal conductivity and consequently boost the performance of thermoelectric materials. Herein, we report the effects of Sm and S co-doping on thermoelectric transport properties of copper antimony selenides in the temperature range of 300 K 〈 T〈 650 K. Through the Callaway model, it demonstrates that Sm and S co-doping induces strong mass differences and strain field fluctuations in Cu3SbSe4. The results prove that doping with suitable elements can increase point defect scattering of heat-carrying phonons, leading to a lower thermal conductivity and a better ther- moelectric performance. The highest figure of merit （ZT） of - 0.55 at 648 K is obtained for the Sm and S co-doped sample with nominal composition of Cu2.995Sm0.005Sb- Se3.95S0.05, which is about 55% increase compared to the ZT of pristine Cu3SbSe4.

关键词： Thermoelectric Point defect scatteringCu3SbSe4 Lattice thermal conductivity

Novel high-resolution DOA estimation using subspace projection method

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The Journal of China Universities of Posts and Telecommunications 2012年第4期19卷 110-116页

作者： SI Wei-jian LAN xiao-yu zou Yan College of Information and Communication Engineering Harbin Engineering University Harbin 150001 China No. 91404 Army Qinhuangdao 066000 China

The performance of multiple signal classification （MUSIC） algorithm with regard to solving closely spaced direction of arrivals （DOAs） depends strongly upon the signal-to-noise ratio （SNR） and snapshots. In order to solve this problem, a method by reconstructing the spatial spectrum function with both noise subspace and signal subspace is presented in this paper. The key idea is to apply the full information contained in covariance matrix and change the projection weights of steering vector on the noise and signal subspace by their revised eigenvalues, respectively. Comparing with the MUSIC algorithm, it does not increase any computational complexity either, and remarkably, it has the advantages of simultaneously reducing noise and keeping the high-resolution ability under low SNR and small sample sized scenarios. Simulation and experiment results are included to demonstrate the superior performance of the proposed algorithm.

关键词： direction &arrival (DOA) multiple signal classification low SNR resolution subspace projection

Facile semisynthesis of histone H3 enables nucleosome probes for investigation of histone H_(3)K79 modifications

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Chinese Chemical Letters 2024年第10期35卷 321-324页

作者： Kun zou Yihang xiao jinyu Yang Mingxuan Wu Department of Chemistry Zhejiang UniversityHangzhou 310027China Department of Chemistry School of ScienceWestlake UniversityHangzhou 310030China Institute of Natural Sciences Westlake Institute for Advanced StudyHangzhou 310024China

Histone H3K79 modifications are essential to regulate chromatin structure and gene transcription,but understanding of the molecular mechanisms is *** H3K79 is at globular domain,short histone peptide cannot mimic H3K79 in ***,reconstituted nucleosome-based chemical tools are ideally used to investigate H3K79 *** consequence,H3K79-modified histone H3 with additional chemical handles are required,but such synthesis is challenging and *** we report a facile semisynthesis method that enables multifunctional histone H3 readily available.H3K79-containing fragment is short for straight peptide synthesis that was later ligated to recombinant expressed H3 fragments for full-length product in large *** a result,nucleosomes with H3K79 modifications as well as photo-reactive group and affinity tag were obtained to investigate potential binding *** believe this method that enhances synthetic accessibility of nucleosome probes will accelerate understanding of the underexplored H3K79 modifications.

关键词： Histone H3K79 modifications Methylation Succinylation Semisynthesis Nucleosome probes

Redshift Dependence of the Low-energy Spectral Index of Gamma-Ray Bursts Revisited

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Research in Astronomy and Astrophysics 2023年第12期23卷 57-62页

作者： xiao-Li Zhang Yong-Feng Huang Ze-Cheng zou Department of Physics Nanjing UniversityNanjing 210023China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University) Ministry of EducationNanjing 210023China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China

A negative correlation was found to exist between the low-energy spectral index and the redshift of gamma-ray bursts(GRBs)by Amati et *** was later confirmed by Geng&Huang and Gruber et al.,but the correlation was also found to be quite dispersive when the sample size was significantly *** this study,we have established two even larger samples of GRBs to further examine the *** of our samples consists of316 GRBs detected by the Swift satellite,and the other one consists of 80 GRBs detected by the Fermi *** is found that there is no correlation between the two parameters for the Swift sample,but there does exist a weak negative correlation for the Fermi *** correlation becomes even more significant when the spectral index at the peak flux is *** is argued that the absence of the correlation in the Swift sample may be due to the fact that Swift has a very narrow energy response so that it could not measure the low-energy spectral index accurately *** studies based on even larger GRB samples are solicited.

关键词： (stars:)gamma-ray burst general-methods statistical-catalogs

Assessment of the Sensitivity and Specificity of the Established Real-time Quaking-induced Conversion(RT-QuIC)Technique in Chinese CJD Surveillance

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Biomedical and Environmental Sciences 2020年第8期33卷 620-622页

作者： xiao Kang YANG Xue Hua zou Wen Quan DONG xiao Ping SHI Qi State Key Laboratory for Infectious Disease Prevention and Control Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases(Zhejiang University)National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Center for Global Public Health Chinese Center for Disease Control and PreventionBeijing 102206China Wuhan Institute of Virology Chinese Academy of ScienceWuhan 430071Hubei China

Real-time quaking-induced conversion(RT-QuIC)assay is a newly established PrPSc-detecting *** development of RT-QuIC improves the diagnosis of sporadic Creutzfeldt–Jakob disease(sCJD),showing good sensitivity and specificity in many countries when the method was used in cerebrospinal fluid(CSF)***,in China,the sensitivity and specificity of RT-QuIC has yet to be determined due to the lack of definitive diagnosis samples.

关键词： diagnosis CJD cerebrospinal