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Genetic optimization of ladle scheduling in empty-ladle operation stage based on temperature drop control

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Journal of Iron and Steel Research(International) 2022年第4期29卷 563-574页

作者： Yu-jie Hong Qing Liu jian-ping yang jian Wang Shan Gao Hong-hui Li State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Laiwu Iron and Steel Group Yinshan Section Steel Co.Ltd.Laiwu 271100ShandongChina

To optimize ladle scheduling in the empty-ladle operation stage of steel plants,a mathematical scheduling model was established for the empty-ladle operation stage,taking the minimum total waiting time in the empty-ladle operation stage as the optimization goal and setting the equipment assignment uniqueness as the key *** improved genetic algorithm was designed to calculate the mathematical scheduling *** the operation of the genetic algorithm,the strategy of"ladle temperature drop control"was adopted to solve the problem of equipment conflicts and reduce unreasonable ladle temperature drops to enhance"red-ladle"*** main production modes operating at 95%capacity in a Chinese steel plant were simulated using the genetic optimization *** results showed that the genetic optimization model could improve the efficiency of ladle operation and reduce the total waiting time in the empty-ladle operation stage by 868–1147 min.

关键词： Ladle scheduling Empty-ladle operation Waiting time Genetic algorithm Temperature drop

Boron heteroatom-doped silicon-carbon peanut-like composites enables long life lithium-ion batteries

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Rare Metals 2022年第4期41卷 1276-1283页

作者： Fang-Zhou Zhang Yuan-Yuan Ma Miao-Miao jiang Wei Luo jian-ping yang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Carbon coated Si core–shell structures have been proposed to solve the adverse effects of Si-based ***,designing ideal core–shell architecture with excellent surface and interface properties is still a significant ***,a novel peanut-like structure of B-doped silicon/carbon nanoparticle(Si@B-C)synthe-sized by sol–gel process and subsequent thermal reduction is *** peanut-like Si@B-C electrode demon-strates a superior cyclability of 534 mAh·g^(-1)after 1000 cycles at high current density of 1000 mA·g^(-1).The exceptional electrochemical performance is attributed to the boric acid-induced highly interconnected peanut-like structure and boron heteroatom framework could provide a continuous electron pathway to reduce the irreversible lithium ion loss during rapid *** work provides insight into the development of the heteroatom-doped Si-based anodes with stable cycling performance for LIBs.

关键词： Lithium-ion battery Silicon anode Peanutlike structure Boron doping Long cycle life

Hollow glass microspheres/silicone rubber composite materials toward materials for high performance deep in-situ temperaturepreserved coring

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Petroleum Science 2022年第1期19卷 309-320页

作者： jian-ping yang Ling Chen Xiao-Bin Gu Zhi-Yu Zhao Cheng-Hang Fu Dong-Sheng yang Dong-Zhuang Tian Zhi-Sheng Chen He-ping Xie College of Polymer Science and Engineering Sichuan UniversityChengdu610065China Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization Institute of Deep Earth Sciences and Green EnergyCollege of Civil and Transportation EngineeringShenzhen UniversityShenzhen518060China School of Mechanical Engineering Sichuan UniversityChengdu610065China Jinshi Drilltech Company Limited Tangshan063004Hebei Institute of New Energy and Low-Carbon Technology Sichuan UniversityChengdu610065China College of Water Resource&Hydropower Sichuan UniversityChengdu610065China Xi'an Research Institute China Coal Technology&Engineering Group CorpXi'an710077China

Deep petroleum resources are stored under high temperature and pressure conditions,with the temperature having a significant influence on the properties of *** in-situ temperature-preserved coring(ITP-coring)devices were developed to assess deep petroleum reserves ***,hollow glass microspheres(HGMs)/silicone rubber(SR)composites that exhibit excellent thermal insulation properties were prepared as thermal insulation materials for deep ITP-coring *** mechanism and process of heat transfer in the composites were explored,as well as their other *** results show that the HGMs exhibit good compatibility with the SR *** the volume fraction of the HGMs is increased to 50%,the density of the HGMs/SR composites is reduced from 0.97 to 0.56 g/cm^(3).The HGMs filler introduces large voids into the composites,reducing their thermal conductivity to 0.11 W/m·*** addition of HGMs into the composites further enhances the thermal stability of the SR,wherein the higher the HGMs filler content,the better the thermal stability of the *** significantly enhance the mechanical strength of the *** increase the compressive strength of the composites by 828%and the tensile strength by 164%.Overall,HGMs improve the thermal insulation,pressure resistance,and thermal stability of HGMs/SR composites.

关键词： In-situ temperature-preserved coring(ITP-coring) Deep in-situ conditions Thermal insulation materials HGMs/SR composites

Intercomparison measurements from commonly used precipitation gauges in the Qilian Mountains

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Advances in Climate Change Research 2023年第3期14卷 394-405页

作者： Yan-Ni ZHAO Ren-Sheng CHEN Lei WANG Chun-Tan HAN jian-ping yang Qilian Alpine Ecology and Hydrology Research Station Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China College of Geography and Environment Shandong Normal UniversityJinan 250014China

Precipitation data is vital fundamental data for climate ***,obtaining precise gauge-measured precipitation in high-altitude mountains is challenging,and the precipitation obtained from various gauge types at the same station may *** understand the differences in precipitation observations among the three commonly used gauges in China(Chinese Standard Precipitation Gauges(CSPG),Total Rain weighing Sensor(TRwS),and Geonor T-200B(T200B))in high-altitude mountains and to recommend a stable and cost-effective weighing gauge,a precipitation intercomparison experiment was conducted at Hulu-1 station in the Qilian *** wind-induced error in measurement was corrected with the‘universal’transfer function recommended by the Word Meteorological *** comparison results,adjusted for systematic errors,showed that the rain,snow and mixed precipitation of CSPG and TRwS equipped with the same octagonal vertical double fence shields(CSPGDF and TRwSDF)and single-Alter shields(CSPG_(s)and TRwSs)were close,while the precipitation of Tretyakov-shielded T200B was notably higher than that of CSPG_(s)and *** average differences in annual and daily precipitation between CSPGDF and TRwSDF from 2017 to 2021 were 12.9 mm and 0.10 mm,*** daily precipitation difference between CSPG_(s)and TRwSs from April 2019–December 2021 was 0.10 mm,while the differences between T200Bs and CSPG_(s)and TRwSs was 0.28 mm and 0.38 mm,*** wind shield performance of Alter and Tretyakov was not much different at Hulu-1 site with low wind speed,thus the measurement principle of T200Bs was the primary cause of the high *** the corrected CSPGDF measurement as the standard,the dynamic loss of CSPG_(s)was 17.6%,while that of CSPGUn was 55.6%,indicating that the single-Alter shield could effectively reduce the impact of wind on precipitation *** the comparison results and the price difference of the instruments,it was r

关键词： Precipitation intercomparison experiment Chinese standard precipitation gauge Total rain weighing sensors Geonor T-200B weighing Gauge Qilian mountains

Research on properties of hollow glass microspheres/epoxy resin composites applied in deep rock in-situ temperature-preserved coring

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Petroleum Science 2022年第2期19卷 720-730页

作者： Zhi-Qiang He yang yang Bo Yu jian-ping yang Xiang-Biao jiang Bo Tian Man Wang Xi-Yuan Li Si-Qing Sun Hui Sun State Key Laboratory of Hydraulics and Mountain River Engineering MOE Key Laboratory of Deep Earth Science and EngineeringCollege of Water Resource and HydropowerSichuan UniversityChengdu 610065SichuanChina Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization Institute of Deep Earth Sciences and Green EnergyCollege of Civil and Transportation EngineeringShenzhen UniversityShenzhen 518060GuangdongChina Shenzhen Key Laboratory of Deep Underground Engineering Sciences and Green Energy Shenzhen UniversityShenzhen 518060GuangdongChina School of Mechanical Engineering Sichuan UniversityChengdu 610065SichuanChina College of Polymer Science and Engineering Sichuan UniversityChengdu 610065SichuanChina Changsha High tech Automation Equipment Co. LTD Changsha 410100HunanChina Jinshi Drilltech co. LtdTangshan 063000HebeiChina State Key Laboratory of Coking Coal Exploitation and Comprehensive Utilization Institute of Coal Mining and UtilizationPingdingshan Tianan Coal Mining Co.LTD.Pingdingshan 467000China Xi’an Research Institute China Coal Technology&Engineering Group CorpXi’an 710077China

Deep petroleum resources are in a high-temperature ***,the traditional deep rock coring method has no temperature preserved measures and ignores the effect of temperature on rock porosity and permeability,which will lead to the distortion of the petroleum resources reserves ***,the hollow glass microspheres/epoxy resin(HGM/EP)composites were innovatively proposed as temperature preserved materials for in-situ temperature-preserved coring(ITP-Coring),and the physical,mechanical,and temperature preserved properties were *** results indicated that:As the HGM content increased,the density and mechanical properties of the composites gradually decreased,while the water absorption was deficient without hydrostatic *** composites with 50 vol%HGM,when the hydrostatic pressure reached 60 MPa,the water absorption was above 30.19%,and the physical and mechanical properties of composites were *** the hydrostatic pressure was lower than 40 MPa,the mechanical properties and thermal conductivity of composites were almost ***,the composites with 50 vol%HGM can be used for ITPCoring operations in deep environments with the highest hydrostatic pressure of 40 ***,to further understand the temperature preserved performance of composites in practical applications,the temperature preserved properties were *** unsteady-state heat transfer model was established based on the test results,then the theoretical change of the core temperature during the coring process was *** above tests results can provide a research basis for deep rock in-situ temperature preserved corer and support accurate assessment of deep petroleum reserves.

关键词： Deep rock in-situ temperature-preserved coring(ITP-Coring) Hollow glass microspheres/epoxy resin composites Hydrostatic pressure Unsteady-state heat transfer model

Flexible and free-standing La_(0.33)Ti_(2)(PO_(4))_(3)/C nanofibers film as a novel high-performance anode for sodium-and potassium-ion batteries

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Rare Metals 2023年第10期42卷 3387-3398页

作者： Jing Dai jian Jing jian-ping yang Wen Zhang Shao-Xiong Liu Qian-Fu Wang Jia-Xing Wen Hai Hu Hui-Fang Li Li Liu National Base for International Science&Technology Cooperation National Local Joint Engineering Laboratory for Key Materials of New Energy Storage BatteryKey Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of EducationHunan Province Key Laboratory of Electrochemical Energy Storage and ConversionSchool of ChemistryXiangtan UniversityXiangtan411105China College of Electromechanical Engineering Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon-MaterialsQingdao University of Science&TechnologyQingdao266061China

Na superionic conductor(NASICON)-type La_(0.33)Ti_(2)(PO_(4))_(3)(LaTP) is firstly proposed as sodium/potassium storage *** density functional theory(DFT) calculations show that LaTP has good electronic character and low Na^(+)/K^(+)migration *** flexible La_(0.33)Ti_(2)(PO_(4))_(3)/C nanofiber film is synthesized via electrostatic spinning and investigated as free-standing electrode applied to sodium-ion batteries(SIBs) and potassiumion batteries(PIBs) in this *** low band gap and Na^(+)/K^(+) migration barriers of LaTP,unique morphology,and complete conductive carbon net allow the La_(0.33)Ti_(2)(PO_(4))_(3)/C nanofibers film to deliver high capacity(296.3 mAh·g^(-1) for SIBs and 235.8 mAh·g^(-1) for PIBs),excellent rate performance(142.5 mAh·g^(-1) for SIBs and50.5 mAh·g^(-1) for PIBs at 1.00 A·g^(-1)),and superior cyclability above 1000 *** full-cell tests show that the material has a good application prospect,indicating a promising flexible anode material for SIBs and PIBs.

关键词： Potassium-ion batteries(PIBs) Sodium-ion batteries(SIBs) Flexible La_(0.33)Ti_(2)(PO_(4))_(3)/C nanofibers film The first-principles calculations Migration potential energy

Danhongqing formula alleviates cholestatic liver fibrosis by downregulating long non-coding RNA H19 derived from cholangiocytes and inhibiting hepatic stellate cell activation

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Journal of Integrative Medicine 2024年第2期22卷 188-198页

作者： Meng Li yang Zhou Hui Zhu Lie-ming Xu jian ping Institute of Liver Diseases Shuguang HospitalShanghai University of Traditional Chinese MedicineShanghai 201203China Preventive Treatment Center Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 200437 China Department of Gastroenterology Suzhou Traditional Chinese Medicine HospitalSuzhou 215000Jiangsu ProvinceChina Shanghai Key Laboratory of Traditional Chinese Medicine Shanghai 201203China Key Laboratory of Liver and Kidney Diseases(Ministry of Education) Shanghai 201203China

Objective:This study explores the mechanism of action of Danhongqing formula(DHQ),a compoundbased Chinese medicine formula,in the treatment of cholestatic liver ***:In vivo experiments were conducted using 8-week-old multidrug resistance protein 2 knockout(Mdr2-/-)mice as an animal model of cholestatic liver *** was administered orally for 8 weeks,and its impact on cholestatic liver fibrosis was evaluated by assessing liver function,liver histopathology,and the expression of liver fibrosis-related ***-time polymerase chain reaction,Western blot,immunohistochemistry and other methods were used to observe the effects of DHQ on long non-coding RNA H19(H19)and signal transducer and activator of transcription 3(STAT3)phosphorylation in the liver tissue of Mdr2-/-*** addition,cholangiocytes and hepatic stellate cells(HSCs)were cultured in vitro to measure the effects of bile acids on cholangiocyte injury and H19 *** overexpressing H19 were constructed,and a conditioned medium containing H19 was collected to measure its effects on STAT3 protein expression and cell *** intervention effect of DHQ on these processes was also *** overexpressing H19 were constructed to measure the impact of H19 on cell activation and assess the intervention effect of ***:DHQ alleviated liver injury,ductular reaction,and fibrosis in Mdr2-/-mice,and inhibited H19expression,STAT3 expression and STAT3 *** formula also reduced hydrophobic bile acid-induced cholangiocyte injury and the upregulation of H19,inhibited the activation of HSCs induced by cholangiocyte-derived conditioned medium,and decreased the expression of activation markers in *** overexpression of H19 in a human HSC line confirmed that H19 promoted STAT3 phosphorylation and HSC activation,and DHQ was able to successfully inhibit these ***:DHQ effectively alleviated spontaneous cholestatic liver fibrosis in Md

关键词： Liver cirrhosis biliary Long non-coding RNA H19 Danhongqing formula Cholangiocyte Hepatic stellate cells STAT3 transcription factor

Accurate simulations of pure-viscoacoustic wave propagation in tilted transversely isotropic media

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Petroleum Science 2024年第2期21卷 866-884页

作者： Qiang Mao jian-ping Huang Xin-Ru Mu Ji-Dong yang Yu-jian Zhang Geosciences Department China University of Petroleum(East China)Qingdao266580ShandongChina Pilot National Laboratory for Marine Science and Technology(Qingdao) Qingdao266207ShandongChina

Forward modeling of seismic wave propagation is crucial for the realization of reverse time migration(RTM) and full waveform inversion(FWI) in attenuating transversely isotropic media. To describe the attenuation and anisotropy properties of subsurface media, the pure-viscoacoustic anisotropic wave equations are established for wavefield simulations, because they can provide clear and stable wavefields. However, due to the use of several approximations in deriving the wave equation and the introduction of a fractional Laplacian approximation in solving the derived equation, the wavefields simulated by the previous pure-viscoacoustic tilted transversely isotropic(TTI) wave equations has low accuracy. To accurately simulate wavefields in media with velocity anisotropy and attenuation anisotropy, we first derive a new pure-viscoacoustic TTI wave equation from the exact complex-valued dispersion formula in viscoelastic vertical transversely isotropic(VTI) media. Then, we present the hybrid finite-difference and low-rank decomposition(HFDLRD) method to accurately solve our proposed pure-viscoacoustic TTI wave equation. Theoretical analysis and numerical examples suggest that our pure-viscoacoustic TTI wave equation has higher accuracy than previous pure-viscoacoustic TTI wave equations in describing q P-wave kinematic and attenuation characteristics. Additionally, the numerical experiment in a simple two-layer model shows that the HFDLRD technique outperforms the hybrid finite-difference and pseudo-spectral(HFDPS) method in terms of accuracy of wavefield modeling.

关键词： Pure-viscoacoustic TTI wave equation Attenuation anisotropy Seismic modeling Low-rank decomposition method

Indole derivatives as agrochemicals:An overview

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Chinese Chemical Letters 2024年第7期35卷 66-72页

作者： ping Sun Yuanqin Huang Shunhong Chen Xining Ma Zhaokai yang jian Wu National Key Laboratory of Green Pesticide Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou UniversityGuiyang 550025China

Indole is a biologically active compound formed by the fusion of benzene and pyrrole,and it is widely found in natural products and *** to the unique structure and properties of indole,its derivatives often exhibit distinctive physiological activities,which has led to widespread attention in the field of pesticide *** the design strategies and structure-activity relationships(SARs)of compounds is a crucial step in developing novel *** review mainly summarizes indole compounds with plant growth regulating,antiviral,fungicidal,herbicidal,and insecticidal activities,with the aim of providing new insights into the discovery and mechanism of action of novel indole-based pesticides.

关键词： Indole compounds Agrochemicals Biological activity Structure-activity relationship Mechanism of action