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Augmented Winter’s method for forecasting under asynchronous seasonalities

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Journal of Management Analytics 2021年第1期8卷 19-35页

作者： Oktay Karabag MMurat Fadıloglu school of Economics Erasmus University RotterdamRotterdamThe Netherlands Department of Industrial Engineering American University of the Middle EastEgailaKuwait

The method of Winters(1960)is one of the most well-known forecasting methodologies in *** main reason behind its popularity is that it is easy to implement and can give quite effective and efficient results for practice ***,this method is not capable of capturing a pattern being emerged due to the simultaneous effects of two different asynchronous calendars,such as Gregorian and *** adapt this method in a way that it can deal with such patterns,and study its performance using a real dataset collected from a brewery factory in *** the same data set,we also provide a comparative performance analysis between our model and several forecasting models such as Winter’s(Winters 1960),TBAT(De Livera et al.2011),ETS(Hyndman et al.2002),and ARIMA(Hyndman and Khandakar 2008).The results we obtained reveal that better forecasts can be achieved using the new method when two asynchronous calendars exert their effects on the time-series.

关键词： sales forecasting Ramadan effect asynchronous calendar effects exponential smoothing

Phosphorus transformation under the influence of aluminum,organic carbon,and dissolved oxygen at the water-sediment interface:A simulative study

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Frontiers of Environmental Science & Engineering 2020年第3期14卷 165-176页

作者： Ouchen Cai Yuanxiao Xiong Haijun Yang Jinyong Liu Hui Wang State Key Joint Laboratory on Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084 Beijing 101 middle school Beijing 100091China Department of Chemistry Tsinghua UniversityBeijing 100084China

The effects of sediment aluminum(Al),organic carbon(OC),and dissolved oxygen(DO)on phosphorus(P)transformation,at the water-sediment interface of a eutrophic constructed lake,were investigated via a series of simulative *** above three factors had various influences on dissolved P concentration,water pH,water and surface sediment appearance,and P *** of Al had the greatest effect on suppressing P release,and the water p H remained alkaline in the water-sediment system under various OC and DO *** dissolution of the added Al was detected.31P-N M R characterization suggested that OC addition did not promote biological P uptake to polyphosphates under oxic *** simulation result on the added phytate indicated the absence of phytate in the original lake *** compared to the reported natural lakes and wetland,the water-sediment system of the constructed lake responded differently to some simulative *** Al,OC,and DO can be controlled with engineering methods,the results of this study provide insights for the practical site restorations.

关键词： Phosphorus Sediment Simulation Dissolved oxygen Organic carbon Aluminum

Bipartite Consensus of Discrete-Time Double-Integrator Multi-Agent Systems with Measurement Noise

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Journal of Systems Science & Complexity 2018年第6期31卷 1525-1540页

作者： MA Cuiqin ZHAO Weiwei ZHAO Yunbo school of Mathematical Sciences Qufu Normal UniversityQufu 273165China. No.1Senior middle school of Qufu Qufu 273165China College of Information Engineering Zhejiang University of TechnologyHangzhou 310023China

The effects of measurement noise are investigated in the context of bipartite consensus of multi-agent systems. In the system setting, discrete-time double-integrator dynamics are assumed for the agent, and measurement noise is present for the agent receiving the state information from its neighbors. Time-varying stochastic bipartite consensus protocols are designed in order to lessen the harmful effects of the noise. Consequently, the state transition matrix of the closed-loop system is analyzed, and sufficient and necessary conditions for the proposed protocol to be a mean square bipartite consensus protocol are given with the help of linear transformation and algebraic graph theory. It is proven that the signed digraph to be structurally balanced and having a spanning tree are the weakest communication assumptions for ensuring bipartite consensus. In particular, the proposed protocol is a mean square bipartite average consensus one if the signed digraph is also weight balanced.

关键词： Bipartite consensus discrete-time double-integrator measurement noise multi-agent systems

Static sensitivity calculation of a novel fiber optic biosensor

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Chinese Optics Letters 2008年第12期6卷 922-924页

作者：白忠臣秦水介李静黄大顺张欣 The Key Laboratory for Photoelectric Technology and Application Guizhou University College of Science Guizhou University College of Science Guizhou University No.1 middle school of Cheng

A novel structure of fiber optic biosensor and its principle are introduced. The sample is detected in microchannels of several microns diameter in fiber optic biosensors. The relation between the optic fiber tapered angle and the fluorescence incident angle is calculated in signal receiving part. As the sensor is a zero-order system, calculating formula of the static sensitivity is derived. When ZnSe nano-crystalline cluster is used for marking the molecules, the static sensitivity for fiber optic biosensors is calculated. At the same time, the relation between the static sensitivity and the ratio of exciting wavelength to fluorescence wavelength is presented.

关键词： Fiber optics Fibers Fluorescence Optical materials Signal transduction

Solvothermal Synthesis of a 3D Luminescent Cadmium-organic Framework with msw Topological Net

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Chinese Journal of Structural Chemistry 2013年第12期32卷 1890-1896页

作者： CUI Pei-Pei CUI Lun-Feng ZHANG Liang-Liang Key Lab of Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShandong University Zhuli middle school Hanting District College of Science China University of Petroleum (East China)

A new cadmium-organic framework, [Cd2（TBDC）2（DMF）2（H2O）]n （1）, was synthesized by solvothermal reaction of rigid carboxylate ligand 2,3,5,6-tetramethyl-l,4-ben- zenedicarboxylate （H2TBDC） and cadmium nitrate and characterized by elemental analysis, infrared spectrum, thermal analysis, PXRD, single-crystal X-ray diffraction and photoluminescence in the solid state. Compound 1 crystallizes in orthorhombic, space group Pca21 with a = 21.487（6）, b = 7.790（2）, c = 20.666（6） A, C30H40Cd2N2O11, Mr = 829.44, V= 3459.3（16） A3, Z = 4, Dc = 1.593 ***-3,μ = 1.29 mm-1, F（000） = 1672, 2.7〈θ〈27.2°, λ（MoKa） = 0.71073 A, T= 293（2） K, the final R = 0.026, wR = 0.0548 and S = 1.027. X-ray diffraction analysis reveals that complex 1 possesses a 3D framework and exhibits rnsw net. Thus, the solid-state luminescent spectrum of 1 displays that the emission of cadmium（lI） complex shows a peak at 317 nm upon 250 nm excitation at room temperature.

关键词： crystal structure Cd(II) complex hydrogen bond luminescenceproperties 2,3,5,6-tetramethyi-1,4-benzenedicarboxylate (H2TBDC)

Rough Marcinkiewicz integrals along certain smooth curves

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Frontiers of Mathematics in China 2012年第5期7卷 857-872页

作者： Bolin MA Huoxiong WU Xiating ZHAO College of Mathematics and Information Engineering Jiaxing University Jiaxing 314001 China school of Mathematical Sciences Xiamen University Xiamen 361005 China Third middle-school of Zhuhai City Zhuhai 519000China

This paper is devoted to the study of the multiple-parameter rough Marcinkiewicz integral operators associated with certain smooth curves. It is shown that the Grafakos-Stefanov type size condition Fa（S^m-1 × S ^n-1） of the kernel implies the L P-boundedness of these Marcinklewicz integral operators for 1 some a 〉 1/2 and 1 ＋ 1/2a 〈 p 〈 1 ＋ 2a, which is an essential improvement of certain previous results.

关键词： Marcinkiewicz integral rough kernel smooth curve Littlewood-Paley theory Fourier transform estimate

Maintaining moderate levels of hypochlorous acid promotes neural stem cell proliferation and differentiation in the recovery phase of stroke

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Neural Regeneration Research 2025年第3期20卷 845-857页

作者： Lin-Yan Huang Yi-De Zhang Jie Chen Hai-Di Fan Wan Wang Bin Wang Ju-Yun Ma Peng-Peng Li Hai-Wei Pu Xin-Yian Guo Jian-Gang Shen Su-Hua Qi school of Medical Technology Xuzhou Key Laboratory of Laboratory DiagnosticsXuzhou Medical UniversityXuzhouJiangsu ProvinceChina school of Pharmacy Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina Department of Laboratory Medicine Branch Hospital of Huai’an First People’s HospitalHuai’anJiangsu ProvinceChina Department of Laboratory Medicine the Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina school of Chinese Medicine The University of Hong KongHong Kong Special Administrative RegionChina

It has been shown clinically that continuous removal of ischemia/reperfusion-induced reactive oxygen species is not conducive to the recovery of late ***,previous studies have shown that excessive increases in hypochlorous acid after stroke can cause severe damage to brain *** previous studies have found that a small amount of hypochlorous acid still exists in the later stage of stroke,but its specific role and mechanism are currently *** simulate stroke in vivo,a middle cerebral artery occlusion rat model was established,with an oxygen-glucose deprivation/reoxygenation model established in vitro to mimic *** found that in the early stage(within 24 hours)of ischemic stroke,neutrophils produced a large amount of hypochlorous acid,while in the recovery phase(10 days after stroke),microglia were activated and produced a small amount of hypochlorous ***,in acute stroke in rats,hypochlorous acid production was prevented using a hypochlorous acid scavenger,taurine,or myeloperoxidase inhibitor,4-aminobenzoic acid *** results showed that high levels of hypochlorous acid(200μM)induced neuronal apoptosis after oxygen/glucose deprivation/***,in the recovery phase of the middle cerebral artery occlusion model,a moderate level of hypochlorous acid promoted the proliferation and differentiation of neural stem cells into neurons and *** suggests that hypochlorous acid plays different roles at different phases of cerebral ischemia/reperfusion *** levels of hypochlorous acid(5 and 100μM)promoted nuclear translocation ofβ-*** transfection of single-site mutation plasmids,we found that hypochlorous acid induced chlorination of theβ-catenin tyrosine 30 residue,which promoted nuclear ***,our study indicates that maintaining low levels of hypochlorous acid plays a key role in the recovery of neurological function.

关键词： cell differentiation cerebral ischemia/reperfusion injury chlorination hypochlorous acid microglia neural stem cell neurogenesis nuclear translocation stroke β-catenin

Head Teacher has a Small Sense of Work

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Journal of Contemporary Educational Research 2018年第3期2卷 32-37页

作者： Feng Haitao Dingxing middle school

high school students psychological maturity,mind is exquisite and the characteristic of personality is distinct,often bring to class management *** the basis of the teacher in charge should be more efforts,patience to study their interaction with students,summarizes the effective management *** this paper,the author combined with their own teaching experience,from the three aspects of high school class management result is analyzed.

关键词： Ideal five to regular guidance

High-performance spherical LiVPO4F/C cathode enabled by facile spray pyrolysis

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Science China(Technological Sciences) 2020年第12期63卷 2729-2734页

作者： DING XiaoBo ZHOU YongMao YAN GuoChun LI JiaYi WANG JieXi school of Metallurgy and Environment Central South UniversityChangsha 410083China middle school Attached to Central South University Changsha 410083China State Key Laboratory for Powder Metallurgy Central South UniversityChangsha 410083China

LiVPO4F suffers problems of difficulty in synthesis and poor conductivity. To solve these,herein sub-micro spherical LiVPO4F/C is synthesized from a highly-reactive hollow VPO4/C sphere that is derived from a facile and fast spray pyrolysis for the first time. Uniform carbon coating layer with a thickness of 5–8 nm is observed on the surface of the particles,helping to improve the electronic conductivity,suppress the particle growth and protect the particles from corrosion by the electrolyte. The particles are shaped as fine sub-micro spheres,which are beneficial for shortening the distance for Li+ transport. Rietveld refinement for the X-ray diffraction pattern of as-prepared sample shows high-purity triclinic LiVPO4F with an enlarged lattice volume,enabling faster Li+ transport in the prepared material. Accordingly,the resulted LiVPO4F/C demonstrates superior electrochemical properties,delivering 135.4,91.1 mA hg-1 at 1,40 C respectively,and remaining the capacity of 93.3 mA hg-1 after 500 cycles at 20 C with the retention of 95.0%. The method introduced here provides an efficient way to address the serious problems of preparing high-purity Li VPO4F with good conductivity.

关键词： lithium ion battery cathode material spray pyrolysis LiVPO4F carbon coating