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Jensen’s Inequality Under Nonlinear Expectation Generated by BSDE with Jumps

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Acta Mathematicae Applicatae Sinica 2019年第4期35卷 873-884页

作者： Na ZHANG guang-yan JIA School of Science Tianjin University of Technology Tianjin 300384 China Zhongtai Securities Institute for Financial Studies Shandong University Jinan 250100 China

In this paper, we study Jensen’s inequality under f-expectation, which is a nonlinear expectation generated by backward stochastic differential equations(BSDEs) with jumps. We connect f-convex functions with the viscosity solutions of a kind of integral partial differential equations(IPDEs) with non-local *** find that under Lipschitz condition, the f-convex function is still convex in the usual sense, i.e., the jumps shrink the range of ‘convex’ functions.

关键词： backward stochastic differential equation with jumps f-convexity Jensen’s inequality

A Convenient Method for the Synthesis of Aminomethylmonoalkylphosphinate

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Chinese Journal of Chemistry 2012年第8期30卷 1906-1908页

作者： Ding Derong yan guang Department of Pharmaceutical Sciences College of Pharmacy University of Kentucky Rose Street Lexington KY 40536-0082 USA Department of Biomedical and Pharmaceutical Sciences Idaho State University Pocatello Idaho 83209 USA

Starting from the readily available 4-methylbenzoic acid, an efficient protocol for the preparation of ethyl 4- （aminomethyl） benzyl （methyl） phosphinate （1）, a novel aminomethylmonoalkylphosphinate was reported in this communication. The important step involves the selective monochlorination of phosphonic ester by POC13 and forming the phosphonochloridate, and followed by nucleophilic addition of CH3MgBr to the acid chloride interme- diate.

关键词： aminomethylmonoalkylphosphinate nucleophilic addition Mitsunobu reaction

A New Representation for Second Order Stochastic Integral-differential Operators and Its Applications

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Acta Mathematicae Applicatae Sinica 2015年第1期31卷 59-70页

作者： guang-yan JIA Na ZHANG Qilu Securities Institute for Financial Studies Shandong University College of Management and Economics Tianjin University China Center for Social Computing Tianjin University

In this paper, we＇ll prove new representation theorems for a kind of second order stochastic integral- differential operator by stochastic differential equations （SDEs） and backward stochastic differential equatio... 详细信息

关键词： backward stochastic differential equation with jumps representation theorem stochastic integral-differential operator f-expectation

基于弹丸膛内运动参数和压力测试的火炮膛内燃气温度估算方法

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火工品 2025年第1期 51-54页

作者：赵煜华闫光虎肖霞严文荣梁磊西安近代化学研究所陕西西安710065

为了解决火炮膛内测试环境恶劣而导致发射药燃气温度测试难度大的问题,基于微波干涉仪、压力测试系统,结合发射药配方性能计算理论、装药内弹道性能计算模型等理论,建立了一种基于实测参数的火炮膛内燃气温度估算方法,并开展了试验研究... 详细信息

为了解决火炮膛内测试环境恶劣而导致发射药燃气温度测试难度大的问题,基于微波干涉仪、压力测试系统,结合发射药配方性能计算理论、装药内弹道性能计算模型等理论,建立了一种基于实测参数的火炮膛内燃气温度估算方法,并开展了试验研究。结果表明:火炮膛内燃气温度的最高值约为2631.8 K,随着弹丸运动迅速降低,弹丸出炮口时膛内燃气温度降低到约1858.4 K;建立的火炮膛内发射药燃气温度估算方法可以有效地获得火炮整个内弹道过程中火药燃气温度随时间的变化规律,为低烧蚀发射药及装药的研制提供了一种新的研究手段。

关键词：发射药膛内燃气温度估算方法微波干涉仪

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Two-electron oxygen reduction reaction by high-loading molybdenum single-atom catalysts

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Rare Metals 2020年第5期39卷 455-457页

作者： Xuan Zhao yan-guang Li Institute of Functional Nano and Soft Materials Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China

Hydrogen peroxide(H2O2)is an important environmentally friendly chemical and potential energy carrier and has been widely used for a range of applications,such as paper and pulp bleaching,chemical synthesis and wastewater treatment[1,2].Nowadays,about 95%H2O2is produced from the anthraquinone oxidation process,which unfortunately is energy intensive and far from economical[3].The direct synthesis of H2O2from H2and O2is a green method,but it has the potential hazard of explosion[4].

关键词： synthesis method Hydrogen

Short-term Scheduling of Steam Power System in Iron and Steel Industry under Time-of-use Power Price

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Journal of Iron and Steel Research International 2015年第9期22卷 795-803页

作者： Yu-jiao ZENG yan-guang SUN State Key Laboratory of Hybrid Process Industry Automation System and Equipment Technology Automation Research and Design Institute of Metallurgical Industry

A generalized formulation for short-term scheduling of steam power system in iron and steel industry under the time-of-use（TOU）power price was presented,with minimization of total operational cost including fuel cost,equipment maintenance cost and the charge of exchange power with main *** model took into account the varying nature of surplus byproduct gas flows,several practical technical constraints and the impact of TOU power *** major types of utility equipments,involving boilers,steam turbines,combined heat and power（CHP）units,and waste heat and energy recovery generators（WHERG）,were separately modeled using thermodynamic balance equations and regression *** order to solve this complex nonlinear optimization model,a new improved particle swarm optimization（IPSO）algorithm was proposed by incorporating time-variant parameters,a selfadaptive mutation scheme and efficient constraint handling ***,a case study for a real industrial example was used for illustrating the model and validating the effectiveness of the proposed approach.

关键词： short-term optimization byproduct gas distribution steam and power dispatch CHP iron and steel industry time-of-use power price

A study of flames with millimeter-wave radiation

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Defence Technology（防务技术） 2020年第4期16卷 876-882页

作者： Jing-ran Xu Ru Peng Chen-guang Zhu Xiao Xie Chen-guang yan Department of Applied Chemistry School of Chemical EngineeringNanjing University of Science and TechnologyNanjingJiangsuChina

It is a valuable issue to explore whether a flame can radiate microwaves,in spite of the electric field formed in the *** herein is an experimental study on a series of flames with millimeterwave radiation in the combustion of pyrotechnic *** pyrotechnic films were composed of ultrafine red phosphorus(P),sodium nitrate(NaNO_3),Polyvinyl Alcohol(PVA) and some additives such as chopped carbon fibers(CFs) and aluminized glass fibers(GFs).The combustion temperatures and millimeter-wave radiation signals of the flames were measured,the millimeter-wave emissivity and spectral radiant exitance were calculated to describe the millimeter-wave radiation *** results demonstrate that the flame of the pyrotechnic films based on P/NaNO_3/CFs can radiate millimeter waves,and different materials and their proportion have a great effect on the millimeter-wave radiation intensity.

关键词： Combustion Flame Pyrotechnics Millimeter-wave radiation

Recovery of the Solitons Using a Lattice Boltzmann Model

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Chinese Physics Letters 1999年第2期16卷 109-110页

作者： yan guang-wu SONG Min Laboratory for Nonlinear Mechanics of Continuous Media Institute of MechanicsChinese Academy of SciencesBeijing 100080 Department of Mathematics Jilin UniversityChangchun 130023 Division of Foundation Jilin Province Architect CollegeChangchun 130053

We formulate a lattice Boltzmann model which simulates Korteweg-de Vries equation by using a method of higher moments of lattice Boltzmann *** a series of lattice Boltzmann equations in different time scales and the conservation law in time scale t0,we obtain equilibrium distribution *** numerical examples show that the method can be used to simulate soliton.

关键词： equation. function. lattice

A Lattice Boltzmann Method for the Chemical Clock in the Belousov-Zhabotinskii Reaction

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Chinese Physics Letters 2001年第7期18卷 918-920页

作者： yan guang-Wu YUAN Li LSEC Institute of Computational MathematicsAcademy of Mathematics and System SciencesChinese Academy of SciencesBeijing 100080 Department of Mathematics Jilin UniversityChangchun 130023

A lattice Boltzmann method for the Belousov-Zhabotinskii reaction is proposed to simulate the chemical *** the Chapman-Enskog expansion and multiscale technique,we obtain a series of lattice Boltzmann equations in different timescales,the conservation law in time scale t0 and coefficients of macroscopic equations to find the equilibrium distribution functions.A simple numerical scheme is designed to simulate the diffusion-reaction *** numerical example shows that the proposed method can be used to simulate chemical systems with the chemical clock.

关键词： functions lattice diffusion