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Electrode/Electrolyte Interfacial chemistry Modulated by chelating Effect for High-Performance Zinc Anode

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Energy & Environmental Materials 2024年第3期7卷 93-99页

作者： chuanlin Li Guangmeng Qu Xixi Zhang chenggang Wang Xijin xu School of Physics and Technology University of JinanJinan 250022China School of chemistry and chemical Engineering Shandong UniversityJinan 250100China

Although Zn metal has been regarded as the most promising anode for aqueous batteries,its practical application is still restricted by side reactions and dendrite ***,an in-situ solid electrolyte interphase(SEI)film formed on the interface of electrode/electrolyte during the plating/stripping of zinc anodes by introducing trace amounts of multidentate ligand sodium diethyldithiocarbamate(DDTc)additive into 1 M ZnSO_(4).The synergistic effect of in-situ solid electrolyte interphase forming and chelate effect endows Zn^(2+)with uniform and rapid interface-diffusion kinetics against dendrite growth and surface side *** a result,the Zn anode in 1 M ZnSO_(4)+DDTc electrolytes displays an ultra-high coulombic efficiency of 99.5%and cycling stability(more than 2000 h),especially at high current density(more than 600 cycles at 40 mA cm^(-2)).Moreover,the Zn//MnO_(2)full cells in the ZnSO_(4)+DDTc electrolyte exhibit outstanding cyclic stability(with 98.6%capacity retention after 2000 cycles at 10 c).This electrode/electrolyte interfacial chemistry modulated strategy provides new insight into enhancing zinc anode stability for high-performance aqueous zinc batteries.

关键词： chelating effect in-situ SEI ultra-high current density Zn anodes

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Underwater four-quadrant dual-beam circumferential scanning laser fuze using nonlinear adaptive backscatter filter based on pauseable SAF-LMS algorithm

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Defence Technology（防务技术） 2024年第7期37卷 1-13页

作者： Guangbo xu Bingting Zha Hailu Yuan Zhen Zheng He Zhang Ministerial Key Laboratory of ZNDY Nanjing University of Science and TechnologyNanjing 210094China Science and Technology on Electromechanical Dynamic control Laboratory Beijing 100081China Shanghai Radio Equipment Research Institute Shanghai 201109China

The phenomenon of a target echo peak overlapping with the backscattered echo peak significantly undermines the detection range and precision of underwater laser *** overcome this issue,we propose a four-quadrant dual-beam circumferential scanning laser fuze to distinguish various interference signals and provide more real-time data for the backscatter filtering *** enhances the algorithm loading capability of the *** order to address the problem of insufficient filtering capacity in existing linear backscatter filtering algorithms,we develop a nonlinear backscattering adaptive filter based on the spline adaptive filter least mean square(SAF-LMS)*** also designed an algorithm pause module to retain the original trend of the target echo peak,improving the time discrimination accuracy and anti-interference capability of the ***,experiments are conducted with varying signal-to-noise ratios of the original underwater target echo *** experimental results show that the average signal-to-noise ratio before and after filtering can be improved by more than31 d B,with an increase of up to 76%in extreme detection distance.

关键词： Laser fuze Underwater laser detection Backscatter adaptive filter Spline least mean square algorithm Nonlinear filtering algorithm

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chromosome-level assembly of triploid genome of Sichuan pepper(Zanthoxylum armatum)

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Horticultural Plant Journal 2024年第2期10卷 437-449页

作者： Lizhi Song Yue Huang Hao Zuo Ning Tang Zhengguo Li Wenbiao Jiao Feng xu Qiang xu Zexiong chen National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural crops Huazhong Agricultural UniversityWuhanHubei 430070China chongqing Key Laboratory of Economic Plant Biotechnology Chongqing University of Arts and SciencesChongqing 402160China School of Life Sciences Chongqing UniversityChongqing 400030China college of Horticulture and Gardening Yangtze UniversityJingzhouHubei 434025China college of Informatics Huazhong Agricultural UniversityWuhanHubei 430070China

As an important spice species in Rutaceae, the Sichuan pepper (Zanthoxylum armatum) can provide pungent and numbing taste, as well as aroma in its mature fruit. Here we assembled a chromosome-level genome of green prickly ash which was widely cultivated in a major production area including chongqing and Sichuan province, china. We generated 712 Gb (~112×) PacBio long reads and 511 Gb (~82×) Hi-c data, and yielded an assembly of 99 pseudochromosomes with total size of 5.32 Gb and contig N50 of 796 kb. The genomic analyses and cytogenetic experiments both indicated that the cultivarZhuye Huajiao’ was a triploid. We identified a Zanthoxylum-specific whole genome duplication event emerging about 24.8 million years ago (Mya). We also detected a transposition burst event (0.3-0.4 Mya) responsible for the large genome size of Z. armatum. Metabolomic analysis of the Zanthoxylum fruits during development stages revealed profiles of39 volatile aroma compounds and 528 secondary metabolites, from which six types of sanshools were identified. Based on metabolomic and transcriptomic network analysis, we screened candidate genes encoding long chain acyl-coA synthetase, fatty acid desaturase,branched-chain amino acid aminotransferase involved in sanshool biosynthesis and three genes encoding terpene synthase during fruit development. The multi-omics data provide insights into the evolution of Zanthoxylum and molecular basis of numbing and aroma flavor of Sichuan pepper.

关键词： Zanthoxylum armatum Genome Sanshool Terpenoid

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cognition on oxidation behavior of Ni-based superalloy GH4742 when exposed to water vapor

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Journal of Materials Science & Technology 2024年第7期174卷 15-22页

作者： H.xu S.F.Yang E.H.Wang c.Y.Guo Y.S.Liu X.M.Hou Y.L.Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Institute for carbon Neutrality University of Science and Technology BeijingBeijing 100083China

The oxidation behavior of Ni-based superalloy GH4742 exposed to water vapor was investigated at 900-1100℃for 50 h in Ar+20%H_(2)O,with Ar+20%O_(2)included for *** presence of H_(2)O is adverse to formation of continuous cr_(2)O_(3)oxide layer but contributes to generation of big *** on this,Ni^(2+)and co^(2+)are more easily to diffuse towards the outermost oxide layer(OOL),forming non-protective Ni-and co-rich oxides with high *** leads to a higher weight gain in Ar+20%H_(2)O than that in Ar+20%O_(2).At elevated temperatures,the spallation of oxide scale occurs while the consumption of cr is reduced in Ar+20%H_(2)O,and the contents of Ni-and co-rich oxides at this moment are reduced in the *** oxidation mechanism was also discussed.

关键词： GH4742 Superalloy H_(2)O Diffusion Oxidation Mechanism

Analysis of risk factors of suicidal ideation in adolescent patients with depression and construction of prediction model

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World Journal of Psychiatry 2024年第3期14卷 388-397页

作者： Jun-chao Zhou Yan cao xu-Yuan xu Zhen-Ping Xian Department of Psychosomatic Medicine The Affiliated Lianyungang Hospital of Xuzhou Medical UniversityThe First People's Hospital of LianyungangLianyungang 222000Jiangsu ProvinceChina

BAcKGROUND Major depressive disorder is a common mental illness among adolescents and is the largest disease burden in this age *** adolescent patients with depression have suicidal ideation(SI);however,few studies have focused on the factors related to SI,and effective predictive models are *** To construct a risk prediction model for SI in adolescent depression and provide a reference assessment tool for *** The data of 150 adolescent patients with depression at the First People's Hospital of Lianyungang from June 2020 to December 2022 were retrospectively *** on whether or not they had SI,they were divided into a SI group(n=91)and a non-SI group(n=59).The general data and laboratory indices of the two groups were *** regression was used to analyze the factors influencing SI in adolescent patients with depression,a nomogram prediction model was constructed based on the analysis results,and internal evaluation was *** operating characteristic and calibration curves were used to evaluate the model’s efficacy,and the clinical application value was evaluated using decision curve analysis(DcA).RESULTS There were differences in trauma history,triggers,serum ferritin levels(SF),highsensitivity c-reactive protein levels(hs-cRP),and high-density lipoprotein(HDLc)levels between the two groups(Pc regression analysis showed that trauma history,predisposing factors,SF,hs-cRP,and HDL-c were factors influencing SI in adolescent patients with *** area under the curve of the nomogram prediction model was 0.831(95%cI:0.763–0.899),sensitivity was 0.912,and specificity was *** higher net benefit of the DcA and the average absolute error of the calibration curve were 0.043,indicating that the model had a good *** The nomogram prediction model based on trauma history,triggers,ferritin,serum hs-cRP,and HDL-c levels can effectively predict the risk of SI in adolescent patients

关键词： Adolescents Depression Suicidal ideation Risk factors Prediction model Ferritin

Liver abnormalities following SARS-coV 2 infection in children 1 to 10 years of age

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Family Medicine and community Health 2024年第1期12卷 28-35页

作者： Pauline Terebuh Veronica R Olaker Ellen K Kendall David c Kaelber Rong xu Pamela B Davis center for Artificial Intelligence in Drug Discovery Case Western Reserve UniversityClevelandOHUSA The center for clinical Informatics Research and Education The MetroHealth SystemClevelandOHUSA Department of Medicine PediatricsDepartment of Population and Quantitative Health SciencesCase Western Reserve UniversityClevelandOHUSA center for community Health Integration Case Western Reserve UniversityClevelandOHUSA

Objective Beginning in October 2021 in the USA and elsewhere,cases of severe paediatric hepatitis of unknown aetiology were identified in young *** the adenovirus and adenovirus-associated virus have emerged as leading aetiological suspects,we attempted to investigate a potential role for SARS-coV 2 in the development of subsequent liver *** We conducted a study using retrospective cohorts of deidentified,aggregated data from the electronic health records of over 100 million patients contributed by US healthcare *** compared with propensity score matched children with other respiratory infections,children aged 1-10 years with cOVID-19 had a higher risk of elevated transaminases(HR(95%cI)2.16(1.74 to 2.69))or total bilirubin(HR(95%cI)3.02(1.91 to 4.78)),or new diagnoses of liver diseases(HR(95%cI)1.67(1.21 to 2.30))from 1 to 6 months after *** with pre-existing liver abnormalities,liver abnormalities surrounding acute infection,younger age(1-4 years)or illness requiring hospitalisation all had similarly elevated *** who developed liver abnormalities following cOVID-19 had more pre-existing conditions than those who developed abnormalities following other *** These results indicate that SARS-coV 2 may prime the patient for subsequent development of liver infections or non-infectious liver *** rare(~1 in 1000),SARS-coV 2 is a risk for subsequent abnormalities in liver function or the diagnosis of diseases of the liver.

关键词： elevated diagnosis subsequent

Fe3O4@SiO2-Protein A-oHSV/cD63 Ab for capturing Virus and Exosomes

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Journal of Analysis and Testing 2024年第3期8卷 335-350页

作者： Wenqing Zheng Pingyi Zheng Ran Zhao Xinyu xu Xiao Zhang Xiaoqian Yuan Ying xu Zichuan Liu Youxin Li Tianjin Key Laboratory for Modern Drug Delivery and High-Eiffciency Collaborative Innovation Center of Chemical Science and Engineering School of Pharmaceutical Science and Technology Faculty of MedicineTianjin University

Protein A modi?ed magnetic spheres (Fe3O4@SiO2-Protein A) with 22.7 emu/g saturation magnetization were prepared and *** spheres had a diameter of 10 nm and was stable up to 229.2°c,and can bond 19.694 mg/g of Protein *** Fe3O4@SiO2-Protein A was?rstly combined with oHSV-BJ-2-A antibody to capture oHSV from disease venom,and the amount of binding virus was 1.92×107to 3.44×107PFU/***3O4@SiO2-Protein A was modi?ed with cD63 antibody,which was further?xed using dissuccinimide octylate （DSS） as a crosslinking *** prepared Fe3O4@Si O2-Protein A-cD63 Ab was useful in isolating and enriching exosomes from cell *** with commercial kits,Fe3O4@SiO2-Protein A-cD63 Ab demonstrated a better puri?cation e?ect,which was successfully monitored using capillary *** total content of exosomes protein extracted using Fe3O4@SiO2-Protein A-cD63 was 3.4 mg/g,which was obviously higher than that reported in some *** addition,Fe3O4@SiO2-Protein A-cD63 Ab also showed its repeatability through bonding and elution of 5 cycles,which was e?ective in cost *** indicated Fe3O4@SiO2-Protein A-cD63 Ab had the potential for large-scale puri?cation of exosomes in practical applications.

关键词： Antibody Exosome Herpes simplex virus Immunomagnetic spheres

Total Synthesis of Laurane and Guaiane Sesquiterpenoids via Oxidative Nazarov Reaction

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chinese Journal of chemistry 2024年第11期42卷 1267-1274页

作者： Yuye chen Wenqing chen Zhiting Zhang Jing xu Shenzhen Grubbs Institute and Department of chemistry and Guangming Advanced Research Institute and Guangdong Provincial Key Laboratory of catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis Southern University of Science and TechnologyShenzhenGuangdong518055 China

As one of the most common structural motifs in natural products,cyclopentenones usually can be fabricated by Nazarov cyclization using divinyl ketones or functionalized tertiary divinyl carbinols(TDcs)as ***,straightforward method for transforming unfunctionalized TDcs to their corresponding cyclopentenones is currently ***,we wish to report the total syntheses of four structurally distinct terpenoids,namely laurane-type marine sesquiterpenoids isolaurene,debromoaplysin and aplysin,and guaiane sesquiterpenoid guaiadienone A,all using a novel synthetic method,named oxidative Nazarov cyclization,as the key *** work demonstrated our robust method is suitable for synthesizing various highly substituted cyclopentenones.

关键词： Total synthesis Synthetic methods Sesquiterpenoids Oxidative Nazarov reaction Electrocyclization Oxoammonium salt Pericyclic reaction Annulation

E2E-MFERc:AMulti-Face Expression Recognition Model for Group Emotion Assessment

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computers, Materials & continua 2024年第4期79卷 1105-1135页

作者： Lin Wang Juan Zhao Hu Song Xiaolong xu Jiangsu Key Laboratory of Big Data Security&Intelligent Processing Nanjing University of Posts and TelecommunicationsNanjing210042China School of Network Security Jinling Institute of TechnologyNanjing211169China State Grid Jiangsu Electric Power company Limited Nanjing210000China School of computer Science Nanjing University of Posts and TelecommunicationsNanjing210042China

In smart classrooms, conducting multi-face expression recognition based on existing hardware devices to assessstudents’ group emotions can provide educators with more comprehensive and intuitive classroom effect analysis,thereby continuouslypromotingthe improvementof teaching ***,most existingmulti-face expressionrecognition methods adopt a multi-stage approach, with an overall complex process, poor real-time performance,and insufficient generalization ability. In addition, the existing facial expression datasets are mostly single faceimages, which are of low quality and lack specificity, also restricting the development of this research. This paperaims to propose an end-to-end high-performance multi-face expression recognition algorithm model suitable forsmart classrooms, construct a high-quality multi-face expression dataset to support algorithm research, and applythe model to group emotion assessment to expand its application value. To this end, we propose an end-to-endmulti-face expression recognition algorithm model for smart classrooms (E2E-MFERc). In order to provide highqualityand highly targeted data support for model research, we constructed a multi-face expression dataset inreal classrooms (MFED), containing 2,385 images and a total of 18,712 expression labels, collected from smartclassrooms. In constructing E2E-MFERc, by introducing Re-parameterization visual geometry group (RepVGG)block and symmetric positive definite convolution (SPD-conv) modules to enhance representational capability;combined with the cross stage partial network fusion module optimized by attention mechanism (c2f_Attention),it strengthens the ability to extract key information;adopts asymptotic feature pyramid network (AFPN) featurefusion tailored to classroomscenes and optimizes the head prediction output size;achieves high-performance endto-end multi-face expression detection. Finally, we apply the model to smart classroom group emotion assessmentand provide design refe

关键词： Multi-face expression recognition smart classroom end-to-end detection group emotion assessment