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Silver vanadate(Ag_(0.33)V_(2)O_(5))nanorods from Ag intercalated vanadium pentoxide for superior cathode of aqueous zinc-ion batteries

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Rare Metals 2022年第8期41卷 2844-2852页

作者： Zhi-hao Su Run-hao wang jiong-hao Huang Rui Sun Zhao-Xia Qin Yu-Fei Zhang hao-Sen Fan School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou510006China School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou510006China

Silver vanadate(Ag_(0.33)V_(2)O_(5))nanorods were successfully synthesized by the pre-intercalation of Ag+into the interlayer of V_(2)O_(5)through a sol-gel method,which presented a favorable electrochemical performance of high capacity,rate capacity,and cycle *** ally,Ag_(0.33)V_(2)O_(5)electrode presented a high capacity of about 311 mAh·g^(-1)at the current density of0.1 A·g^(-1).It also delivered long-term cycling stability(144 mAh·g^(-1)after 500 cycles at 2 A·g^(-1)).The reasons for the superior electrochemical performance were the preintercalation Ag^+extended interlayer distance,and the introduction of elemental silver improved conductivity during charge/***,the Zn^(2+)storage mechanism was revealed by various characteristic *** prepared Ag_(0.33)V_(2)O_(5)nanorods from the sol-gel method were demonstrated as a promising cathode material for aqueous Zn^(2+)batteries.

关键词： Ag_(0.33)V_(2)O_(5)nanorods Aqueous zinc-ion battery Pre-intercalation Electron and ion transport

Updated roles of the gut microbiota in exploring shrimp etiology, polymicrobial pathogens, and disease incidence

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Zoological Research 2024年第4期45卷 910-923页

作者： Jin-Bo Xiong hao-Nan Sha jiong Chen State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products School of Marine SciencesNingbo UniversityNingboZhejiang 315211China Key Laboratory of Aquacultural Biotechnology Ministry of EducationSchool of Marine SciencesNingbo UniversityNingboZhejiang 315211China Laboratory of Biochemistry and Molecular Biology School of Marine SciencesNingbo UniversityNingboZhejiang 315211China

Litopenaeus vannamei is the most extensively cultured shrimp species globally,recognized for its scale,production,and economic ***,its aquaculture is plagued by frequent disease outbreaks,resulting in rapid and massive *** research often lags behind the emergence of new diseases,leaving the causal agents of some shrimp diseases unidentified and leading to nomenclature based on symptomatic presentations,especially in cases involving co-and polymicrobial *** data on shrimp disease statuses remain *** this review,we summarize current knowledge on shrimp diseases and their effects on the gut ***,we also propose a workflow integrating primary colonizers,“driver”taxa in gut networks from healthy to diseased states,disease-discriminatory taxa,and virulence genes to identify potential polymicrobial *** examine both abiotic and biotic factors(e.g.,external and internal sources and specific-disease effects)that influence shrimp gut microbiota,with an emphasis on the“holobiome”concept and common features of gut microbiota response to diverse *** excluding the effects of confounding factors,we provide a diagnosis model for quantitatively predicting shrimp disease incidence using disease common-discriminatory taxa,irrespective of the causal *** to the conservation of functional genes used in designing specific primers,we propose a practical strategy applying qPCR-assayed abundances of disease common-discriminatory functional *** review updates the roles of the gut microbiota in exploring shrimp etiology,polymicrobial pathogens,and disease incidence,offering a refined perspective for advancing shrimp aquaculture health management.

关键词： Shrimp disease Gut microbiota Polymicrobial pathogens Diagnosis model Disease common-discriminatory taxa Disease prediction

Temperature-and thickness-dependence of robust out-of-plane ferroelectricity in CVD grown ultrathin van der Waals a-In2Se3 layers

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Nano Research 2020年第7期13卷 1897-1902页

作者： Weng Fu Io Shuoguo Yuan Sin Yi Pang Lok Wing Wong jiong Zhao Jianhua hao Department of Applied Physics The Hong Kong Polytechnic UniversityHong KongChina

Two-dimensional(2D)ferroelectric materials with unique structure and extraordinary optoelectrical properties have attracted intensive research in the field of nanoelectronic and optoelectronic devices,such as optical sensors,transistors,photovoltaics and non-volatile memory ***,the transition temperature of the reported ferroelectrics in 2D limit is generally low or slightly above room temperature,hampering their applications in high-temperature electronic ***,we report the robust high-temperature ferroelectricity in 2D a-In2Se3,grown by chemical vapor depostion(CVD),exhibiting an out-of-plane spontaneous polarization reaching above 200℃.The polarization switching and ferroelectric domains are observed in In2Se;nanoflakes in a wide temperature *** coercive field of the CVD grown ferroelectric layers ilustrates a room-temperature thickness dependency and increases drastically when the film thickness decreases;whereas there is no large variance in the coercive field at dfterent termperature from the samples with identical *** results show the stable ferroelectricit of In2Se3 nanoflakes maintained at high temperature and open up the opportunities of 2D materials for novel applications in high-temperature nanoelectronic devices.

关键词： ln2Se3 two-dimensional(2D)materials ferroelectricity high-temperature coercive field

Janus Poly(Vinylidene Fluoride)Membranes with Penetrative Pores for Photothermal Desalination

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Research 2020年第1期2020卷 534-544页

作者： hao-hao Yu Lin-jiong Yan Ye-Cheng Shen Si-Yu Chen hao-Nan Li Jing Yang Zhi-Kang Xu MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials&Technologies of Zhejiang ProvinceDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China

Solar-driven desalination has been considered as a promising technology for producing clean water through an abundant and pollution-free energy *** is a critical challenge to reasonably design the porous morphology and the thermal management of photothermal membranes for enabling efficient energy conversion and water *** this work,a Janus poly(vinylidene fluoride)membrane was fabricated in combination of penetrative pore structure,asymmetric surface wettability with proper thermal management for high-efficiency solar *** open and directly penetrative pores achieved by the two-dimensional solvent freezing strategy are considered to provide direct pathways for water and vapor *** unique feature of hydrophobic upper layer/hydrophilic lower layer enables the photothermal membranes to self-float on the water surface and rapidly pump water from the bulk to the *** resulting Janus membrane exhibits a satisfactory light absorbance as high as 97%and a photothermal conversion efficiency of 62.8%under one-sun irradiation in a direct contact *** solar-to-vapor efficiency rises up to 90.2%with the assistance of a thermal insulator adopted *** the Janus membrane and the composite setup are able to work efficiently with a high stability in seawater desalination,and the concentration of ion in condensed water is reduced to below 1 ***,Janus membranes with directly penetrative pores and photothermal surfaces shine a light on the development of high-performance solar evaporators for the practical application in solar seawater desalination.

关键词： composite thermal pores

Quantum estimation of rotational speed in optomechanics

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Chinese Physics B 2023年第10期32卷 377-382页

作者：李浩程泂 Department of Physics Ningbo UniversityNingbo 315211China

We study the quantum Fisher information(QFI)of the angular velocity of rotation in an optomechanical *** on the Gaussian measurements method,we derive the explicit form of a single-mode Gaussian QFI,which is valid for arbitrary angular velocity of *** information about the angular velocity to be measured is contained in the optical covariance matrix,which can be experimentally determined via homodyne *** find that QFI increases rapidly when driving the system close to the unstable *** result can be attributed to the strong nonlinearity of the system at the unstable *** results indicate the possibility of using an optomechanical system for high precision detection of the angular velocity of rotation.

关键词： optomechanical system Fisher information

A Fault Detection Method for Electric Vehicle Battery System Based on Bayesian Optimization SVDD Considering a Few Faulty Samples

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Energy Engineering 2024年第9期121卷 2543-2568页

作者： Miao Li Fanyong Cheng jiong Yang Maxwell Mensah Duodu hao Tu School of Electronics and Electrical Engineering Anhui Polytechnic UniversityWuhu241000China

Accurate and reliable fault detection is essential for the safe operation of electric *** vector data description(SVDD)has been widely used in the field of fault ***,constructing the hypersphere boundary only describes the distribution of unlabeled samples,while the distribution of faulty samples cannot be effectively described and easilymisses detecting faulty data due to the imbalance of sample ***,selecting parameters is critical to the detection performance,and empirical parameterization is generally timeconsuming and laborious and may not result in finding the optimal ***,this paper proposes a semi-supervised data-driven method based on which the SVDD algorithm is improved and achieves excellent fault detection *** incorporating faulty samples into the underlying SVDD model,training deals better with the problem of missing detection of faulty samples caused by the imbalance in the distribution of abnormal samples,and the hypersphere boundary ismodified to classify the samplesmore *** Bayesian Optimization NSVDD(BO-NSVDD)model was constructed to quickly and accurately optimize hyperparameter *** the experiments,electric vehicle operation data with four common fault types are used to evaluate the performance with other five models,and the results show that the BO-NSVDD model presents superior detection performance for each type of fault data,especially in the imperceptible early and minor faults,which has seen very obvious ***,the strong robustness of the proposed method is verified by adding different intensities of noise in the dataset.

关键词： Fault detection vehicle battery system lithium batteries fault samples

Repaired morphology of CO_(2)laser rapid ablation mitigation of fused silica and its influence on downstream light modulation

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Science China(Technological Sciences) 2022年第5期65卷 1116-1126页

作者： TAN Chao Zhao LinJie CHEN MingJun CHENG Jian ZHANG Yu ZHANG jiong YANG hao YIN ZhaoYang State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin150001China Department of Mechanical Engineering National University of SingaporeSingapore117575Singapore

The threat of cascading damage to downstream components caused by the light modulation intensification of laser repaired morphology on the surface of fused silica optics cannot be ignored in high-power laser *** paper uses the angular spectrum diffraction theory based on the analysis of repaired surface morphology of CO_(2)laser rapid ablation mitigation to study the influence of different repaired morphologies on the downstream 355 nm laser *** show that the arc-shaped laser processing lines on the repaired surface are formed by the residual height superposition of the material after laser scanning of two adjacent layers,and the short-pulse laser can substantially suppress the heat-affected zone of the repaired *** offaxis ring caustic and on-axis hotspot are sequentially generated in the downstream modulated light fields of the conical repaired sites with different diameters.A secondary peak with modulation larger than 3 emerges downstream of the modulation ***,the maximum modulation and the secondary peak increase with the diameter and cone angle of the repaired site,and the position of the secondary peak appears farther away from the rear *** modulations of three repaired sites with cone angles of 15°,20°,and 25°can finally be stabilized below ***,the downstream optics should be installed far away from the positions where the maximum modulation and the secondary peak ***,the maximum value and the secondary peak of the downstream light modulation of double repaired sites are larger than that of the single repaired site,and both rise as the repaired sizes ***,large-scale and large-size repairing of multiple surface damages in the same area should be avoided in the laser repairing of fused silica.

关键词： fused silica laser repairing morphology light modulation secondary peak double repaired sites

Present Terrestrial Heat Flow Measurements of the Geothermal Fields in the Chagan Sag of the YingenEjinaqi Basin,Inner Mongolia,China

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Acta Geologica Sinica(English Edition) 2019年第2期93卷 283-296页

作者： FENG Renpeng ZUO Yinhui YANG Meihua ZHANG jiong LIU Zhi ZHOU Yongshui hao Qingqing State Key Laboratory of Oil and Gas Geology and Exploitation Chengdu University of Technology Shandong Provincial Key Laboratory of Depositional Mineralization & Sedimentary Minerals Shandong University of Science and Technology State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Geothermal and Environmental Research Institute Institute for Global Environment Change Xi'an Jiaotong University Research Institute of Exploration and Development Zhongyuan Oilfield SINOPEC Institute of Mineral Resources Research China Metallurgical Geology Bureau

Owing to the lack o f terrestrial heat flow data, studying lithospheric thermal structure and geodynamics of the Yingen-Ejinaqi Basin in Inner Mongolia is limited. In this paper, the terrestrial heat flow o f the Chagan sag in the YingenEjinaqi Basin were calculated by 193 system steady-state temperature measurements of 4 wells, and newly measuring 62 rock thermal conductivity and 20 heat production rate data on basis o f the original 107 rock thermal conductivity and 70 heat production data. The results show that the average thermal conductivity and heat production rate are 2.11 ±0.28 W/(m.K) and2.42±0.25 nW/m^3 in the Lower Cretaceous o f the Chagan sag. The average geothermal gradient from the Lower Suhongtu 2 Formation to the Suhongtu 1 Fonnation is 37.6 °C/km, and that o f the Bayingebi 2 Formation is 27.4 °C/km. Meanwhile, the average terrestrial heat flow in the Chagan sag is 70.6 mW/m^2. On the above results, it is clear that there is an obvious negative correlation between the thermal conductivity o f the stratum and its geothermal gradient. Moreover, it reveals that there is a geothermal state between tectonically stable and active areas. This work may provide geothermal parameters for further research o f lithospheric thermal structure and geodynamics in the Chagan sag.

关键词： thermophysical parameters geothermal gradient terrestrial heat flow Chagan sag Yingen-Ejinaqi Basin

Correlation of RCAS1 and Claudin-18 expression with proliferation and invasion gene expression in malignant pleural effusion

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Journal of Hainan Medical University 2017年第23期23卷 116-119页

作者： Lei wang jiong hao Department of Pathology Xianyang Hospital of Yan'an University in Shaanxi ProvinceXianyang712000China Department of Pathology Shaanxi Second Provincial People's HospitalXi'an710005China

Objective: To investigate the correlation of RCAS1 and Claudin-18 expression with proliferation and invasion gene expression in malignant pleural effusion. Methods: A total of 187 patients with primary non-small cell lung cancer complicated by malignant pleural effusion were selected as malignant pleural effusion group and 56 patients with tuberculous pleural effusion were selected as tuberculous pleural effusion group. The expression of RCAS1 and Claudin-18 gene as well as proliferation and invasion-related genes in the pleural effusion were compared between the two groups, and Pearson test was used to evaluate the correlation of RCAS1 and Claudin-18 expression with proliferation and invasion gene expression in malignant pleural effusion. Results: RCAS1 and Claudin-18 mRNA expression in pleural effusion of malignant pleural effusion group were greatly higher than those of tuberculous pleural effusion group. Proliferation genes LRRC3B and TCF21 mRNA expression in pleural effusion of malignant pleural effusion group were lower than those of tuberculous pleural effusion group whereas SIRT1 and EZH2 mRNA expression were higher than those of tuberculous pleural effusion group;invasion genes DDX17, Nectin4, Vav3, NGAL and Snail mRNA expression were higher than those of tuberculous pleural effusion group whereas EFEMP1 and MCPH1 mRNA expression were lower than those of tuberculous pleural effusion group. The Pearson test showed that the RCAS1 and Claudin-18 expression in malignant pleural effusion were directly correlated with the expression of proliferation-related genes and invasion-related genes. Conclusion: RCAS1 and Claudin-18 expression increase abnormally in malignant pleural effusion, the specific expression is directly correlated with tumor cell proliferation and invasion activity, and they can be used as the reliable indicators for the identification of benign or malignant pleural effusion.

关键词： Malignant pleural effusion RCAS1 Claudin-18 Proliferation gene Invasion gene