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Spatial differentiation of carbon emissions from energy consumption based on machine learning algorithm:A case study during 2015–2020 in Shaanxi,China

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Journal of Environmental Sciences 2025年第3期149卷 358-373页

作者： Hongye Cao Ling Han ming liu Liangzhi Li China Jikan Research Institute of Engineering Investigations and Design Co.Ltd.Xi’an 710043China College of Geological Engineering and Geomatics Chang’an UniversityXi’an 710061China School of Land Engineering Chang’an UniversityXi’an 710064China Xi’an Key Laboratory of Territorial Spatial Information School of Land EngineeringChang’an UniversityXi’an 710064China Department of Geography and Environmental Management University of WaterlooWaterlooOntario N2L 3G1Canada

Carbon emissions resulting from energy consumption have become a pressing issue for governments *** estimation of carbon emissions using satellite remote sensing data has become a crucial research *** studies relied on statistical regression models that failed to capture the complex nonlinear relationships between carbon emissions and characteristic *** this study,we propose a machine learning algorithm for carbon emissions,a Bayesian optimized XGboost regression model,using multi-year energy carbon emission data and nighttime lights(NTL)remote sensing data from Shaanxi Province,*** results demonstrate that the XGboost algorithm outperforms linear regression and four other machine learning models,with an R^(2)of 0.906 and RMSE of *** observe an annual increase in carbon emissions,with high-emission counties primarily concentrated in northern and central Shaanxi Province,displaying a shift from discrete,sporadic points to contiguous,extended spatial *** autocorrelation clustering reveals predominantly high-high and low-low clustering patterns,with economically developed counties showing high-emission clustering and economically relatively backward counties displaying low-emission *** findings show that the use of NTL data and the XGboost algorithm can estimate and predict carbon emissionsmore accurately and provide a complementary reference for satellite remote sensing image data to serve carbon emission monitoring and *** research provides an important theoretical basis for formulating practical carbon emission reduction policies and contributes to the development of techniques for accurate carbon emission estimation using remote sensing data.

关键词： Machine learning Energy carbon emissions Nighttime light Spatial distribution

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Characterization of elastic modulus and hardness of brittle solids by instrumented indentation

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Acta Mechanica Sinica 2025年第1期41卷 141-162页

作者： Zhitong Xu ming liu Jianghong Gong Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing School of Mechanical Engineering and AutomationFuzhou UniversityFuzhou 350108China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

The reduced elastic modulus Er and indentation hardness HIT of various brittle solids including ceramics,semiconductors,glasses,single crystals,and laser material were evaluated using *** analysis procedures were compared such as Oliver&Pharr and nominal hardness-based methods,which require area function of the indenter,and other methods based on energy,displacement,contact depth,and contact stiffness,which do not require calibration of the *** recovery of the imprint by the Knoop indenter was also utilized to evaluate elastic moduli of brittle *** relating HIT/Er and dimensionless nanoindentation variables(e.g.,the ratio of elastic work over total work and the ratio of permanent displacement over maximum displacement)are found to be nonlinear rather than linear for brittle *** plastic hardness Hp of brittle solids(except traditional glasses)extracted based on Er is found to be proportional to E_(r)√H_(IT).

关键词： Brittle solids Nanoindentation Elastic modulus Hardness Elastic recovery of Knoop imprint

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Efficient implementation of quantum permutation algorithm using a polar SrO molecule in pendular states

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Communications in Theoretical Physics 2025年第2期77卷 41-53页

作者： Jie-Ru Hu Zuo-Yuan Zhang Jin-ming liu State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University School of Physical Science and Technology Yangzhou University Chongqing Key Laboratory of Precision Optics Chongqing Institute of East China Normal University

Quantum algorithms offer more enhanced computational efficiency in comparison to their classical counterparts when solving specific tasks. In this study, we implement the quantum permutation algorithm utilizing a polar molecule within an external electric field. The selection of the molecular qutrit involves the utilization of field-dressed states generated through the pendular modes of SrO. Through the application of multi-target optimal control theory, we strategically design microwave pulses to execute logical operations, including Fourier transform,oracle Ufoperation, and inverse Fourier transform within a three-level molecular qutrit *** observed high fidelity of our outcomes is intricately linked to the concept of the quantum speed limit, which quantifies the maximum speed of quantum state manipulation. Subsequently,we design the optimized pulse sequence to successfully simulate the quantum permutation algorithm on a single SrO molecule, achieving remarkable fidelity. Consequently, a quantum circuit comprising a single qutrit suffices to determine permutation parity with just a single function evaluation. Therefore, our results indicate that the optimal control theory can be well applied to the quantum computation of polar molecular systems.

关键词： polar molecule optimal control quantum permutation algorithm pendular states

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Fault Warning of Satellite Momentum Wheels With a Lightweight Transformer Improved by FastDTW

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IEEE/CAA Journal of Automatica Sinica 2025年第3期12卷 539-549页

作者： Yiming Gao Shi Qiu ming liu Lixian Zhang Xibin Cao the School of Astronautics Harbin Institute of Technology IEEE

The momentum wheel assumes a dominant role as an inertial actuator for satellite attitude control systems. Due to the effects of structural aging and external interference, the momentum wheel may experience the gradual emergence of irreversible faults. These fault features will become apparent in the telemetry signal transmitted by the momentum wheel. This paper introduces ADTWformer, a lightweight model for long-term prediction of time series, to analyze the time evolution trend and multi-dimensional data coupling mechanism of satellite momentum wheel faults. Moreover, the incorporation of the approximate Markov blanket with the maximum information coefficient presents a novel methodology for performing correlation analysis,providing significant perspectives from a data-centric ***, the creation of an adaptive alarm mechanism allows for the successful attainment of the momentum wheel fault warning by detecting the changes in the health status curves. The analysis methodology outlined in this article has exhibited positive results in identifying instances of satellite momentum wheel failure in two scenarios, thereby showcasing considerable promise for large-scale applications.

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Isolation and single-molecule magnetism of neutral rare-earth(III) sandwich complexes supported by compact aromatic rings

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Science China Chemistry 2025年

作者： ming liu Yan-Cong Chen Jieyu Zheng Xiao-Han Peng ming-Liang Tong Akseli Mansikkam?ki Fu-Sheng Guo Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Institute of Green Chemistry and Molecular Engineering (IGCME) Guangdong Basic Research Center of Excellence (GBRCE) for Functional Molecular EngineeringSun Yat-sen University NMR Research Unit University of Oulu

Over the past few decades,various types of metal-sandwich structures have been synthesized and reported,which significantly advanced organometallic chemistry and contributed to numerous ***,charge-neutral rare-earth（III） sandwich structures based on compact aromatic ligands still remained unexplored due to the challenges in their ***,the immense potential of this type of structure in building high-performance single-molecule magnets （SMMs） has compelled us to overcome these synthetic ***,we aimed to isolate such complexes in a general formula of[（Ring1）REIII（Ring2）].[（CE4B）t4Me2NREIII(Cpi Pr5)](3-RE,RE=Y,Dy;（C4B）Et4Me2N=1-（N,N-dimethylamino）-2,3,4,5-tetraethylborolyl;Cpi Pr5=pentaisopropylcyclopentadienyl) were successfully obtained via the salt-metathesis reaction of the precursor[REIII(CpiPr5)（BH4）2-（THF）]（,RE=Y,Dy;THF=tetrahydrofuran） and the new aminoborolide ligand[Na2（C4B）Et4Me2N1-RE（THF）2]2（2）,which represent the first neutral rare-earth（III）-sandwich complexes ligated by compact aromatic *** complexes 3-RE were characterized by single-crystal X-ray diffraction,elemental analysis,UV-Vis-NIR and *** 3-Y was studied by NMR *** and dynamic magnetic properties of 3-Dy were investigated by SQUID magnetometry,showing a high anisotropy barrier of 785（12） cm-1and open hysteresis loops up to 12 *** bonding of nitrogen to dysprosium（III） near the equatorial plane lowers the anisotropy,and a bulkier ligand in the future should be able to avoid *** work not only demonstrates that such type of neutral rare-earth（III）-sandwich complexes is totally synthetically feasible,but also paves the way for the development of high-performance SMMs.

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Correlations of the expression of Cx43,SCF^(FBXW7),p-cyclin E1(Ser73),p-cyclin E1(Thr77)and p-cyclin E1(Thr395)in colon cancer tissues

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 207-213页

作者： Rong-Gang Luan ming-Da liu Zi-Feng Deng Cong-Lan Lu Mei-Ling Yu ming-Yu Zhang Rong liu Ran An You-Liang Yao Dong-Bei Guo Yong-Xing Zhang Lei Zhao Department of Gastrointestinal Surgery Air Force Hospital of Eastern TheaterAnhui Medical UniversityNanjing 230032Jiangsu ProvinceChina State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics School of Public HealthXiamen UniversityXiamen 361102Fujian ProvinceChina Trauma Surgery Air Force Hospital of Eastern TheaterAnhui Medical UniversityNanjing 230032Jiangsu ProvinceChina Department of Orthopaedics Air Force Hospital of Eastern TheaterAnhui Medical UniversityNanjing 230032Jiangsu ProvinceChina

BACKGROUND Previous cellular studies have demonstrated that elevated expression of Cx43 promotes the degradation of cyclin E1 and inhibits cell proliferation through ***,reduced expression results in a loss of this capacity to facilitate cyclin E *** ubiquitination and degradation of cyclin E1 may be associated with phosphorylation at specific sites on the protein,with Cx43 potentially enhancing this process by facilitating the phosphorylation of these critical *** To investigate the correlation between expression of Cx43,SKP1/Cullin1/F-box(SCF)FBXW7,p-cyclin E1(ser73,thr77,thr395)and clinicopathological indexes in colon *** Expression levels of Cx43,SCF^(FBXW7),p-cyclin E1(ser73,thr77,thr395)in 38 clinical colon cancer samples were detected by immunohistochemistry and were analyzed by statistical methods to discuss their *** Positive rate of Cx43,SCF^(FBXW7),p-cyclin E1(Ser73),p-cyclin E1(Thr77)and p-cyclin E1(Thr395)in detected samples were 76.32%,76.32%,65.79%,5.26%and 55.26%*** expressions of these proteins were not related to the tissue type,degree of tissue differentiation or lymph node ***43 and SCF^(FBXW7)(r=0.749),p-cyclin E1(Ser73)(r=0.667)and p-cyclin E1(Thr395)(r=0.457),SCF^(FBXW7) and p-cyclin E1(Ser73)(r=0.703)and p-cyclin E1(Thr395)(0.415)were correlated in colon cancer(P<0.05),and expressions of the above proteins were positively correlated in colon *** Cx43 may facilitate the phosphorylation of cyclin E1 at the Ser73 and Thr195 sites through its interaction with SCF^(FBXW7),thereby influencing the ubiquitination and degradation of cyclin E1.

关键词： Colon cancer Cx43 SCF^(FBXW7) Phosphorylation of cyclin E1 Sites of cyclin E1 Correlation analysis

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Chattering-Free Fault-Tolerant Cluster Control and Fault Direction Identification for HIL UAV Swarm With Pre-Specified Performance

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IEEE/CAA Journal of Automatica Sinica 2025年第1期12卷 183-197页

作者： Pei-ming liu Xiang-Gui Guo Jian-Liang Wang Daniel Coutinho Lihua Xie the Beijing Engineering Research Center of Industrial Spectrum Imaging School of Automation and Electrical Engineering University of Science and Technology Beijing the Shunde Graduate School of University of Science and Technology Beijing IEEE Autonomous Intelligent Systems Department Hangzhou Innovation Institute of Beihang University the Department of Automation and Systems Universidade Federal de Santa Catarina the School of Electrical and Electronic Engineering Nanyang Technological University

In this paper, the problem of pre-specified performance fault-tolerant cluster consensus control and fault direction identification is solved for the human-in-the-loop(HIL) swarm unmanned aerial vehicles(UAVs) in the presence of possible nonidentical and unknown direction faults(NUDFs) in the yaw *** control strategy begins with the design of a pre-specified performance event-triggered observer for each individual *** observers estimate the outputs of the human controlled UAVs, and simultaneously achieve the distributed design of actual control signals as well as cluster consensus of the observer *** is worth mentioning that these observers require neither the high-order derivatives of the human controlled UAVs' output nor a priori knowledge of the initial conditions. The fault-tolerant controller realizes the pre-specified performance output regulation through error transformation and the Nussbaum function. It should be pointed out that there are no chattering caused by the jump of the Nussbaum function when a reverse fault occurs. In addition, to provide a basis for further solving the problem of physical malfunctions, a fault direction identification algorithm is proposed to accurately identify whether a reverse fault has occurred. Simulation results verify the effectiveness of the proposed control and fault direction identification strategies when the reverse faults occur.

关键词： Chattering-free cluster consensus fault direction identification human-in-the-loop (HIL) nonidentical and unknown direction faults (NUDFs) pre-specified performance swarm unmanned aerial vehicles (UAVs)

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Fiber optic high temperature sensor with weak strain sensitivity based on Mach-Zehnder interferometric structure

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Optoelectronics Letters 2025年第4期21卷 199-204页

作者： liu ming MA Chengju ZHANG Yixin liu Qianzhen HU Hui WU Jirui School of Science Xi'an Shiyou University

We proposed a fiber optic high temperature sensor based on the Mach-Zehnder interference(MZI) structure, which is composed of two lengths of multi-mode fibers(MMFs), a length of few-mode fiber(FMF) and two sections of single-mode fibers(SMFs). Firstly, the two sections of MMFs were spliced with two sections of SMFs. Then, the MMFs were fused to two ends of FMF to form a symmetrically structured fiber-optic MZI structure.

关键词： A

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Source Characteristics and Induced Hazards of the 2025 M6.8 Dingri Earthquake,Xizang,China,Revealed by Imaging Geodesy

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Journal of Earth Science 2025年

作者： Chen Yu Zhenhong Li Xiaoning Hu Chuang Song Suju Li Haihui liu Jie Li Bingquan Han Zhenjiang liu ming liu Shuang Zhu Xiaoye Hao Zhiyuan Li Jianbing Peng College of Geological Engineering and Geomatics Chang'an University Key Laboratory of Loess Key Laboratory of Western China ' s Mineral Resources and Geological Engineering Ministry of Education Big Data Center for Geosciences and Satellites Chang'an University National Disaster Reduction Center of China

0 INTRODUCTION According to the China Earthquake N ' etworks Center, an Mw 7.1 earthquake struck Dingri County, Tibet Autonomous Region, China, on 7 January 2025 at 9: 05 a.m. local time. The epicenter is located at 28.5°N, 87.45°E, with a depth of ～10 km. The maximum intensity reaches IX degrees, and the seismogenic fault is situated west of the nearly north-south-oriented Shenzha-Dingjie normal fault system(Figure 1a).

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Interdisciplinary perspectives on diabetes and microcirculatory dysfunction:A global bibliometric analysis

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World Journal of Diabetes 2025年第2期16卷 284-296页

作者： Yuan Li Bing Wang Meng-Ting Xu Ying-Yu Wang Wei-Qi liu Sun-Jing Fu Bing-Wei Li Hao Ling Xue-Ting liu Xiao-Yan Zhang Ai-Ling Li Xu Zhang ming-ming liu Institute of Microcirculation Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100005China International Center of Microvascular Medicine Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100005China Department of Radiology The Affiliated Changsha Central HospitalHengyang Medical SchoolUniversity of South ChinaChangsha 410004Hunan ProvinceChina Laboratory of Electron Microscopy Ultrastructural Pathology CenterPeking University First HospitalBeijing 100034China Diabetes Research Center Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100005China

BACKGROUND The prevalence of diabetes and its association with microcirculatory dysfunction presents a significant challenge in contemporary global *** this nexus is crucial for developing targeted therapeutic *** To trace the progression and delineate the current state of interdisciplinary research concerning diabetes and *** Employing a bibliometric approach,this study scrutinizes 12886 peer-reviewed publications retrieved from the PubMed and Web of Science *** focus is on elucidating the research trajectory and thematic concentrations at the confluence of diabetes and *** Research outputs have surged since 2011,with the United States,China,and the United Kingdom leading in the quantity and quality of *** analysis revealed that journals such as Diabetes Care and The New England Journal of Medicine,along with top research institutions,have significantly contributed to advancing the understanding of microvascular processes affected by *** central themes identified include inflammation,oxidative stress,and endothelial dysfunction,which are critical in mediating the microvascular complications of *** This bibliometric evaluation reveals an evolving landscape focusing on diabetes and microcirculatory *** complexity of diabetic microvascular issues encouraged multidisciplinary research strategies that are imperative for global health outcomes.

关键词： Diabetes mellitus Microcirculatory dysfunction Bibliometric analysis Endothelial dysfunction Diabetic complications

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