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Association between Polymorphisms in Telomere-Associated Protein Genes and the Cholinesterase Activity of Omethoate-Exposed Workers

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Biomedical and Environmental Sciences 2022年第5期35卷 448-452页

作者： FAN Ya Hui LI Xin Ling LIU Xiao Hua GUO Zhi Feng YAN Meng Qing DUAN Xiao Ran MIAO Wen Bin WANG Wei Department of Occupational Health and Occupational Diseases College of Public HealthZhengzhou UniversityZhengzhou 450001HenanChina Biotherapy Center The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhou 450052HenanChina Director of Efficacy and Safety Evaluation Laboratory Pony Testing Group Shanghai Co.Ltd.Shanghai 201600China

Organophosphorus pesticides(OPs)are extensively used for their high efficiency,broad spectrum,and low ***,the health hazards caused by long-term,low-dose exposure to OPs are easily *** is a large class of OPs that is widely used in *** inhibition of the cholinesterase(ChE)activity is the main toxicity mechanism of OPs,and such an activity is used as a biomarker of exposure to OPs.

关键词： pesticides China. residue

First-Principles Study of Magnetic Properties of TM_(13) and TM_(13)@Au_(32) Clusters(TM = Mn, Co)

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Chinese Physics Letters 2018年第10期35卷 22-26页

作者： Yi-Bo Li Li-Jin Zeng Chun-Xi＆ng Zhao Chun-Yao Niu International Laboratory for Quantum Fhnctional Materials of Henan School of Physics and Engineering Zhengzhou UniversityZhengzhou 450001 School of Digital Media Shenzhen Institute of Information TechnologyShenzhen 518172

The structural and magnetic properties of TM13and TM_（13）@Au32clusters（TM=Mn,Co）are studied by firstprinciples *** find that the Au32cluster can tune not only the magnetic moment but also the magnetic coupling properties between the TM atoms of the TM *** Au32cluster can increase the net magnetic moment of Mn13clusters while reducing that of *** interaction between Au and Mn atoms induces more Mn atoms to form spin parallel coupling,resulting in an increase of the total magnetic moment of Mn13clusters,while for the Co13clusters,the interaction between Au and Co atoms does not change the magnetic coupling states between the Co atoms,but reduces the magnetic moment of the Co atoms,leading to a decrease of the total magnetic moment of this *** findings indicate that the encapsulation of Au32clusters can not only raise the chemical stability of TM clusters,but also can tune their magnetic coupling properties and magnetic moment,which enables such systems to be widely applied in fields of spintronics and medical science.

关键词： net Mn Clusters Au Co

Effects of Various Deformation on the First Fission Barrier in Even-A N = 152 Isotones

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Communications in Theoretical Physics 2019年第1期71卷 67-74页

作者：柴清祯赵维娟王华磊 School of Physics and Engineering Zhengzhou University

The first(namely, inner) fission barriers for even-A N = 152 nuclei have been studied systematically in the framework of macroscopic-microscopic model by means of potential energy surface(PES) calculations in the threedimensional(β_(2, γ), β_4) deformation space. Their collective properties, such as ground-state deformations, are compared with previous calculations and available observations, showing a consistent trend. In addition, it has been found that the microscopic shell correction energy plays an important role on surviving fission in these N = 152 deformed shell nuclei. The inclusion of non-axial symmetric degree of freedom γ will pull the fission barrier down more significantly with respect to the calculation involving in hexadecapole deformation β_4. Furthermore, the calculated Woods-Saxon(WS) single particle levels indicate that the large microscopic shell correction energies due to low level densities may be responsible for such a reduction on the inner fission barrier.

关键词： fission barriers potential energy surface calculations ground-state deformations shell correction energy single particle levels

Study on the Improvement of the Application of Complete Ensemble Empirical Mode Decomposition with Adaptive Noise in Hydrology Based on RBFNN Data Extension Technology

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Computer Modeling in Engineering & Sciences 2021年第2期126卷 755-770页

作者： Jinping Zhang Youlai Jin Bin Sun Yuping Han Yang Hong School of Water Conservancy Engineering Zhengzhou UniversityZhengzhou450001China Yellow River Institute for Ecological Protection&Regional Coordinated Development Zhengzhou UniversityZhengzhou450001China North China university of Water Resources and Electric Power Zhengzhou450046China School of Civil Engineering and Environmental Sciences University of OklahomaNormanOK73019USA

The complex nonlinear and non-stationary features exhibited in hydrologic sequences make hydrological analysis and forecasting ***,some hydrologists employ the complete ensemble empirical mode decomposition with adaptive noise(CEEMDAN)method,a new time-frequency analysis method based on the empirical mode decomposition(EMD)algorithm,to decompose non-stationary raw data in order to obtain relatively stationary components for further ***,the endpoint effect in CEEMDAN is often neglected,which can lead to decomposition errors that reduce the accuracy of the research *** this study,we processed an original runoff sequence using the radial basis function neural network(RBFNN)technique to obtain the extension sequence before utilizing CEEMDAN ***,we compared the decomposition results of the original sequence,RBFNN extension sequence,and standard sequence to investigate the influence of the endpoint effect and RBFNN extension on the CEEMDAN *** results indicated that the RBFNN extension technique effectively reduced the error of medium and low frequency components caused by the endpoint *** both ends of the components,the extension sequence more accurately reflected the true fluctuation characteristics and variation *** advances are of great significance to the subsequent study of ***,the CEEMDAN method,combined with an appropriate extension of the original runoff series,can more precisely determine multi-time scale characteristics,and provide a credible basis for the analysis of hydrologic time series and hydrological forecasting.

关键词： Complete ensemble empirical mode decomposition with adaptive noise data extension radial basis function neural network multi-time scales runoff

A shape memory scaffold for body temperature self-repairing wearable perovskite solar cells with efficiency exceeding 21%

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InfoMat 2022年第12期4卷 74-84页

作者： Tangyue Xue Zengqi Huang Pei Zhang Meng Su Xiaotian Hu Tingqing Wu Baojin Fan Gangshu Chen Guanghui Yu Wentao Liu Xuying Liu Yiqiang Zhang Yanlin Song School of Materials Science and Engineering Zhengzhou UniversityZhengzhouPeople's Republic of China Key Laboratory of Green Printing Institute of Chemistry Chinese Academy of Sciences(ICCAS)BeijingPeople's Republic of China Institute of Polymers and Energy Chemistry Nanchang UniversityNanchangPeople's Republic of China College of Chemistry Zhengzhou UniversityZhengzhouPeople's Republic of China

Grain boundary cracks in flexible perovskite films can be repaired by filling with self-repairing polymers during the preparation and wearable ***,the self-repairing polymers are commonly active through external heating or humidification treatments,which cannot match with the human body's temperature tolerance of wearable ***,a body temperature-responsive shape memory polyurethane(SMPU)is demonstrated to achieve the real-time mechanical self-repairing of grain boundary cracks(~37°C).Furthermore,the strong intermolecular interaction between SMPU and the uncoordinated Pb2+and I−,can reduce the trap density in perovskite *** blade-coated device achieves a power conversion efficiency(PCE)of 21.33%,which is among the best reported flexible perovskite solar cells(PSCs;0.10 cm2).Importantly,the device with SMPU can recover more than 80%of the PCE after 6000 cycles(bending radius:8 mm).Finally,the flexible PSCs are used for wearable solar power supply of a smartphone,which show great potential for self-repairing wearable electronics.

关键词： grain boundary mechanical stability perovskite self-repairing function shape memory polyurethane