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Interpretable machine learning optimization(InterOpt)for operational parameters:A case study of highly-efficient shale gas development

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Petroleum science 2023年第3期20卷 1788-1805页

作者： Yun-Tian Chen Dong-Xiao Zhang Qun Zhao De-Xun Liu Eastern Institute for Advanced Study Zhejiang315200China Department of Mathematics and Theories Peng Cheng LaboratoryGuangdong518055China National Center for Applied Mathematics Shenzhen(NCAMS) Southern University of Science and TechnologyGuangdong518055China Research Institute of Petroleum Exploration and Development CNPCBejing100083China

An algorithm named InterOpt for optimizing operational parameters is proposed based on interpretable machine learning,and is demonstrated via optimization of shale gas *** consists of three parts:a neural network is used to construct an emulator of the actual drilling and hydraulic fracturing process in the vector space(i.e.,virtual environment);:the Sharpley value method in inter-pretable machine learning is applied to analyzing the impact of geological and operational parameters in each well(i.e.,single well feature impact analysis):and ensemble randomized maximum likelihood(EnRML)is conducted to optimize the operational parameters to comprehensively improve the efficiency of shale gas development and reduce the average *** the experiment,InterOpt provides different drilling and fracturing plans for each well according to its specific geological conditions,and finally achieves an average cost reduction of 9.7%for a case study with 104 wells.

关键词： Interpretable machine learning Operational parameters optimization Shapley value Shale gas development Neural network

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Chaotic Map-Based Authentication and Key Agreement Protocol with Low-Latency for Metasystem

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Computers, Materials & Continua 2024年第3期78卷 4471-4488页

作者： Guojun Wang Qi Liu School of Electronics&Information Engineering Nanjing University of Information Science&TechnologyNanjing210044China Yancheng Polytechnic College Yancheng224000China Jiangsu Province Engineering Research Center of Advanced Computing and Intelligent Services School of SoftwareNanjing University of Information Science and TechnologyNanjingChina

With the rapid advancement in exploring perceptual interactions and digital twins,metaverse technology has emerged to transcend the constraints of space-time and reality,facilitating remote AI-based *** this dynamic metasystem environment,frequent information exchanges necessitate robust security measures,with Authentication and Key Agreement(AKA)serving as the primary line of defense to ensure communication ***,traditional AKA protocols fall short in meeting the low-latency requirements essential for synchronous interactions within the *** address this challenge and enable nearly latency-free interactions,a novel low-latency AKA protocol based on chaotic maps is *** protocol not only ensures mutual authentication of entities within the metasystem but also generates secure session *** security of these session keys is rigorously validated through formal proofs,formal verification,and informal *** confronted with the Dolev-Yao(DY)threat model,the session keys are formally demonstrated to be secure under the Real-or-Random(ROR)*** proposed protocol is further validated through simulations conducted using VMware workstation compiled in HLPSL language and C *** simulation results affirm the protocol’s effectiveness in resisting well-known attacks while achieving the desired low latency for optimal metaverse interactions.

关键词： Metasystem authentication and key agreement chaotic map secure communication

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Molecular rotaxane shuttle-relay accelerates K^(+)/Cl^(-) symport across a lipid membrane

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science China Chemistry 2023年第8期66卷 2300-2308页

作者： Kai Ye Zekai Zhang Zexin Yan Shihao Pang Huiting Yang Xiaonan Sun Can Liu Linyong Zhu Cheng Lian Chunyan Bao Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistryInstitute of Fine ChemicalsSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai200237China State Key Laboratory of Bioreactor Engineering Shanghai Frontiers Science Center of Optogenetic Techniques for Cell MetabolismSchool of PharmacyEast China University of Science and TechnologyShanghai200237China

Synthetic molecules that can mediate the coupled transport of Cl^(-) with K^(+) and/or Na+across the lipid bilayers have aroused great interest due to their potential as a novel therapeutic strategy by disrupting cellular ion *** on the structural advantages of molecular rotaxanes,we herein show that two rotaxane-based transporters[2]R and[3]R induce coupled K^(+)/Cl^(-) channel transport by introducing Cl^(-) recognition sites in the thread and K^(+) binding group in the wheel,*** welldesigned molecular structures allow the insertion of unimolecular rotaxanes into the lipid bilayer,thus achieving effective ion transport by means of thermodynamically controlled movement and driven by the difference in ion concentration inside and outside the *** addition,the use of a three-component rotaxane can accelerate ion transport through a cooperative shuttlerelay mechanism in which two wheels move along the thread in the lipid membrane,thereby enabling[3]R to have higher ion transport *** work represents a major advance in the use of rotaxane molecules to accomplish more complex and effective tasks.

关键词： K^(+)/Cl^(-)symport molecular rotaxane artificial ion channel ion-pair recognition

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Improvement in shape control performance of finishing mills in endless rolling production line

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Journal of Iron and Steel research International 2023年第2期30卷 267-276页

作者： Zhao-yang Li Zhi Qi Lan-tian Guo Shu-huan Wang Guan-yu Zhou Chi-huan Yao Ding-guo Zhao An-rui He School of Metallurgy and Energy North China University of Science and TechnologyTangshan063210HebeiChina Tangshan Donghua Steel Enterprise Group Co. Ltd.Tangshan063210HebeiChina National Engineering Research Center for Advanced Rolling Technology University of Science and Technology BeijingBeijing100083China

Donghua steel continuous casting-rolling(DSCCR)production line is an endless rolling production line independently integrated and developed by a Chinese *** solve the problem of out-of-control shape caused by insufficient adjustment ability of work roll bending force of DSCCR finishing mills,the backup roll contours of the finishing mill were optimized considering multi-objectives,and varying contact length backup roll(VCR)contours matching the concave work rolls were designed based on the rapid rolls-strip deformation calculation model,which integrated the elastic deformation of the rolls and the fast plastic deformation of the rolled *** simulation results showed that VCR configuration can significantly enhance the control efficiency of the work roll bending force and increase the transverse stiffness of rolling mill compared with the conventional roll *** addition,VCR backup roll can improve the contact state between backup roll and work *** industrial production showed that the bending force setup value was more reasonable and the strip crown control accuracy was improved.

关键词： Endless rolling Profile control Flatness control Bending force Roll contour Varying contact rolling

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Unveiling the roles of initial phase constituents and phase metastability in hydrogen embrittlement of TRIP-assisted VCrCoFeNi medium-entropy alloys

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材料科学技术（英文版） 2025年第4期207卷 160-176页

作者： Sang Yoon Song Dae Cheol Yang Han-Jin Kim Sang-In Lee Hyeon-Seok Do Byeong-Joo Lee Alireza Zargaran Seok Su Sohn Department of Materials Science and Engineering Korea University 02841 SeoulRepublic of Korea Green Energy Materials Research Team Hyundai Motor Company Uiwang R&D Center 16082 UiwangRepublic of Korea Institue of Advanced Technology Development Hyundai Motor Group 13529 SeongnamRepublic of Korea Department of Materials Science and Engineering Pohang University of Science and Technology 37673 PohangRepublic of Korea Graduate Institute of Ferrous & Energy Materials Technology Pohang University of Science and Technology37673 PohangRepublic of Korea

Medium-entropy alloys(MEAs)that exhibit transformation-induced plasticity(TRIP)from face-centered cubic(FCC)to body-centered cubic(BCC)are considered promising for liquid hydrogen environments due to their remarkable cryogenic ***,studies on hydrogen embrittlement(HE)in BCC-TRIP MEAs have not been conducted,although the TRIP effect and consequent BCC martensite usually deteri-orate HE *** these alloys,initial as-quenched martensite alters hydrogen diffusion and trap behavior,and deformation-induced martensitic transformation(DIMT)provides preferred crack propaga-tion sites,which critically affects HE ***,this study aims to investigate the HE behav-ior of BCC-TRIP MEAs by designing four V10Cr10Co30Fe50-xNix(x=0,1,2,and 3 at％)MEAs,adjusting both the initial phase constituent and phase metastability.A decreased Ni content leads to a reduced fraction and mechanical stability of FCC,which in turn increases HE susceptibility,as determined through electro-chemical hydrogen pre-charging and slow-strain rate tests The permeation test and thermal desorption analysis reveal that the hydrogen diffusivity and content are affected by initial BCC fraction,interconnec-tivity of BCC,and refined *** these initial phase constituents differ between the alloys with FCC-and BCC-dominant initial phase,microstructural factors affecting HE are unveiled discretely among these al-loy groups by correlation of hydrogen-induced crack behavior with hydrogen diffusion and trap *** alloys with an FCC-dominant initial phase,the initial BCC fraction and DIMT initiation rate emerge as critical factors,rather than the extent of *** BCC-dominant alloys,the primary contributor is an increase in the initial BCC fraction,rather than the extent or rate of *** unraveled roles of microstructural factors provide insights into designing HE-resistant BCC-TRIP MEAs.

关键词： Medium-entropy alloys(MEAs) Transformation-induced plasticity(TRIP) Hydrogen embrittlement Hydrogen-induced crack Hydrogen diffusion and trapping

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Nickel-Catalyzed Regiodivergent Acylzincation of Styrenes with Organozincs and CO

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Chinese Journal of Chemistry 2024年第6期42卷 599-604页

作者： Chenglong Wang Ning Liu Xianqing Wu Jingping Qu Yifeng Chen Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai200237 China Dedicated to the Special Issue of C1 Chemistry.

Transition metal-catalyzed carbometallation of unsaturated hydrocarbons constitutes one of the most efficient synthetic methodologies for the construction of C—C ***,the incorporation of organometallic reagent with the CO gas as a nucleophilic acyl synthon could enable the acylmetallation reaction,which greatly increases the horizon of carbometallation ***,we report a nickel-catalyzed regiodivergent acylzincation of o-cyano cinnamate ester and o-cyano styrene,in which the cyano moiety intramolecularly captures zinc intermediates to trigger the tandem cyclization *** protocol features mild conditions,broad substrate scope and excellent functional group tolerance,thus affording a diverse array of highly functionalized carbocyclic compounds.

关键词： Carbonylation Carbometallation Styrene Nickel Cyclization

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High-performance 110 kVp hard x-ray detector based on all-crystalline-surface passivated perovskite single crystals

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InfoMat 2024年第8期6卷 97-110页

作者： Juyoung Ko Beomjun Park Jangwon Byun Sandeep Pandey Ajin Jo Joo-Hong Lee Wonho Lee Jin-Wook Lee Nam-Gyu Park Man-Jong Lee Department of Chemistry Konkuk UniversitySeoulRepublic of Korea Advanced Crystal Material/Device Research Center Konkuk UniversitySeoulRepublic of Korea Health Science Research Center Korea UniversitySeoulRepublic of Korea Department of Nano Engineering and Department of Nano Science and Technology SKKU Advanced Institute of Nanotechnology(SAINT)Sungkyunkwan UniversitySuwonRepublic of Korea SKKU Institute of Energy Science&Technology(SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea Department of Health and Environmental Science Korea UniversitySeoulRepublic of Korea School of Chemical Engineering Center for Antibonding Regulated CrystalsSungkyunkwan UniversitySuwonRepublic of Korea

Halide perovskite single crystals(SCs)have attracted much attention for their application in high-performance x-ray detectors owing to their desirable properties,including low defect density,high mobility–lifetime product(μτ),and long carrier diffusion ***,suppressing the inherent defects in perovskites and overcoming the ion migration primarily caused by these defects remains a *** study proposes a facile process for dipping Cs0.05FA0.9MA0.05PbI3 SCs synthesized by a solution-based inverse temperature crystallization method into a 2-phenylethylammonium iodide(PEAI)solution to reduce the number of defects,inhibit ion migration,and increase x-ray *** to conventional spin coating,this simple dipping process forms a two-dimensional PEA2PbI4 layer on all SC surfaces without further treatment,effectively passivating all surfaces of the inherently defective SCs and minimizing ion *** a result,the PEAI-treated perovskite SC-based x-ray detector achieves a record x-ray sensitivity of 1.3×10^(5)μC Gyair^(-1) cm^(-2) with a bias voltage of 30 V at realistic clinical dose rates of 1–5 mGy s^(-1)(peak potential of 110 kVp),which is 6 times more sensitive than an untreated SC-based detector and 3 orders of magnitude more sensitive than a commercialα-Se-based ***,the PEAI-treatedperovskite SC-based x-ray detector exhibits a low detection limit(73 nGy s^(-1)),improved x-ray response,and clear x-ray images by a scanning method,highlighting the effectiveness of the PEAI dipping approach for fabricating next-generation x-ray detectors.

关键词： 2D PEA2PbI4 layers clinical dose rates perovskite single crystals phenethylammonium iodide(PEAI) surface passivation x-ray sensitivity

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Electric and magnetic properties of multiferroic CZFMO doped BNLTBKTBaT composite ceramics prepared via the solid-state combustion method

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Ceramics International 2025年第16期51卷 22886-22901页

作者： Klinbanmor, Metarsit Thatawong, Bhoowadol Somsri, Widchaya Prasertpalichat, Sasiphon Vittayakorn, Naratip Pinitsoontorn, Supree Rittidech, Aurawan Jantaratana, Pongsakorn Bongkarn, Theerachai Department of Physics Faculty of Science Naresuan University Phitsanulok65000 Thailand Research Center for Academic Excellence in Applied Physics Faculty of Science Naresuan University Phitsanulok65000 Thailand Advanced Material Research Unit Faculty of Science King Mongkut's Institute of Technology Ladkrabang Bangkok10520 Thailand Khon Kaen University Khon Kaen40002 Thailand Department of Physics Faculty of Science Mahasarakham University Mahasarakham 44150 Thailand Department of Physics Faculty of Science Kasetsart University Bangkok10900 Thailand

The present research work describes in detail investigations of the multiferroic properties of (1-x) (0.85Bi0.5Na0.475Li0.025TiO3-0.11Bi0.5K0.5TiO3-0.04BaTiO3)-xCo0.6Zn0.4Fe1.7Mn0.3O4 [(1-x)BNLTBKTBaT-xCZFMO];x = 0, 0.05, 0.10, 0.15 and 0.20 composite ceramics, synthesized by the solid-state combustion technique. The effect of increasing x content on the phase structure, microstructure, electrical and magnetic properties of (1-x)BNLTBKTBaT-xCZFMO composite ceramics was investigated. X-ray diffraction patterns of the BNLTBKTBaT sample showed a pure perovskite phase (rhombohedral and tetragonal structures). When CZFMO was added, the XRD patterns showed a co-structure between perovskite and cubic spinel ferrite structures. The composite grains were composed of large and small sizes, which were composed of mainly the elements of BNLTBKTBaT and CZFMO, respectively. As x increased, the average grain size of the larger grains increased, and the smaller grains got smaller. The density decreased from 5.54 to 4.61 g/cm3 as x increased. Increasing the amount of CZFMO in BNLTBKTBaT also resulted in a decrease in the dielectric constant (Εr) and the remnant polarization (Pr), with the leakage current observed at x = 0.20. The saturation magnetization (Ms) and the magnetoelectric coupling coefficient (αE) increased with increased x. It was found that x = 0.15 gave the optimal electric, magnetic, and magnetoelectric properties (Εr = 425, Pr = 1.64 μC/cm, Ms = 1.1948 emu/g and αE = 4.88 mV/cm-Oe), which makes the composite potentially more applicable for information technology and spintronics devices. © 2025

关键词： Perovskite

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Water-facilitated targeted repair of degraded cathodes for sustainable lithium-ion batteries

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SusMat 2024年第2期4卷 28-40页

作者： Jiao Lin Xiaodong Zhang Zhujie Li Ersha Fan Xiaowei Lv Renjie Chen Feng Wu Li Li Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingChina Collaborative Innovation Center of Electric Vehicles in Beijing No.5 South Zhongguancun StreetBeijingChina Advanced Technology Research Institute Beijing Institute of TechnologyJinanChina

Directly repairing end-of-life lithium-ion battery cathodes poses significant chal-lenges due to the diverse compositions of the ***,we propose a water-facilitated targeted repair strategy applicable to various end-of-life batches and *** process involves initiating structural repair and reconstruct-ing particle morphology in degraded LiMn_(2)O_(4)(LMO)through an additional thermal drive post-ambient water remanganization,achieving elemental *** to solid-phase repair,the resulting LMO material exhibits superior electrochemical and kinetic *** theoretical analysis highlights the impact of Mn defects on the structural stability and electron transfer rate of degraded *** propensity of Mn ions to diffuse within the Mn layer,specifically occupying the Mn 16d site instead of the Li 8a site,theoretically sup-ports the feasibility of ambient water ***,this method proves effective in the relithiation of degraded layered cathode materials,yielding single *** combining low energy consumption,environmental friendli-ness,and recyclability,our study proposes a sustainable approach to utilizing spent *** strategy holds the potential to enable the industrial direct repair of deteriorated cathode materials.

关键词： direct repair lithium-ion batteries water-facilitated

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Boundedness and Positivity Preserving Numerical Analysis of a Fuzzy-Parameterized Delayed Model for Foot and Mouth Disease Dynamics

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Computer Modeling in Engineering & sciences 2024年第12期141卷 2527-2554页

作者： Muhammad Tashfeen Fazal Dayan Muhammad Aziz ur Rehman Thabet Abdeljawad Aiman Mukheimer Department of Mathematics School of ScienceUniversity of Management and TechnologyLahore54000Pakistan Department of Mathematics and Sciences Prince Sultan UniversityRiyadh11586Saudi Arabia Department of Medical Research China Medical UniversityTaichung40402Taiwan Department of Mathematics and Applied Mathematics School of Science and TechnologySefakoMakgatho Health Sciences UniversityGa-Rankuwa0208South Africa Center for Applied Mathematics and Bioinformatics(CAMB) Gulf University for Science and TechnologyHawally32093Kuwait

Foot-and-mouth disease(FMD)is a viral disease that affects cloven-hoofed animals including cattle,pigs,and sheep,hence causing export bans among others,causing high economic losses due to reduced *** global effect of FMD is most felt where livestock rearing forms an important source of *** is therefore important to understand the modes of transmission of FMD to control its spread and prevent its *** work intends to address these dynamics by including the efficacy of active migrant animals transporting the disease from one area to another in a fuzzy mathematical modeling *** models of epidemics are determinable with a set of deterministic parameters and this does not reflect on real-life scenarios as observed in *** theory is used in this model as it permits the inclusion of uncertainties in the model;this makes the model more of a reality regarding disease transmission.A time lag,in this case,denotes the incubation period and other time-related factors affecting the spread of FMD and,therefore,is added to the current model for *** that purpose,the analysis of steady states and the basic reproduction number are performed and,in addition,the stability checks are conveyed in the fuzzy *** the numerical solution of the model,we derive the Forward Euler Method and the fuzzy delayed non-standard finite difference(FDNSFD)*** studies of the FDNSFD scheme are performed for convergence,non-negativity,boundedness,and consistency analysis of the numerical projection to guarantee that the numerical model is an accurate discretization of the continuous dynamics of FMD transmission over *** the following simulation study,we show that the FDNSFD method preserves the characteristics of the constant model and still works if relatively large time steps are employed;this is a bonus over the normal finite difference *** study shows how valuable it is to adopt fuzzy theory and time delays whe

关键词： FMD Virus delay epidemic model fuzzy parameters stability consistency

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