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2024年曲折转型中的全球能源行业

国际石油经济 2025年第1期33卷 70-76页

作者：孙贤胜王海博孙娜国际能源转型学会中国石油国际事业有限公司中国石油规划总院

2024年百年巨变加速演进,世界的和平与稳定、发展与繁荣、交流与合作均遇到多重压力,面临严峻挑战,是变革与动荡交织的一年。化石能源面临着前所未有的压力,环境保护的要求日益严格,全球气候变化的紧迫性促使各国纷纷制定更加苛刻的碳... 详细信息

2024年百年巨变加速演进,世界的和平与稳定、发展与繁荣、交流与合作均遇到多重压力,面临严峻挑战,是变革与动荡交织的一年。化石能源面临着前所未有的压力,环境保护的要求日益严格,全球气候变化的紧迫性促使各国纷纷制定更加苛刻的碳减排目标。2024年乌克兰危机继续重塑全球能源格局;中东局势持续升级;特朗普赢得大选,美国回归化石能源;中国《能源法》通过表决,加快完善新型能源体系。2025年,全球石油市场看弱,面临严重的供大于求的压力;全球天然气需求仍保持增长态势,供应紧张问题依然存在。能源转型需要国际合作,任何理由的限制、贸易壁垒、脱钩断链都会减缓新能源的发展,推迟碳中和的实现。

关键词：地缘政治气候变化能源转型

Influence of thickness and initial groove angle in M–K model on limit strain of 7B04 by considering through-thickness stress

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Chinese Journal of Aeronautics 2020年第3期33卷 1074-1084页

作者： Hongrui DONG Xiaoqiang LI haibo wang Guiqiang GUO Dongsheng LI School of Mechanical Engineering and Automation Beihang UniversityBeijing 100083China School of Mechanical and Materials Engineering North China University of TechnologyBeijing 100144China

Marciniack–Kuczinski(M–K)model is widely used to predict material's forming limit curve(FLC).The prediction of FLC traditionally neglected through-thickness normal ***,it cannot be neglected in some forming *** work has been done to study the effect of through-thickness normal stress on FLC with constant through-thickness normal stress or constant ratio of through-thickness normal stress and maximum principal *** addition,based on Nakazima test process,the ratio of through-thickness normal stress and maximum principal stress has been derived,which was a function of instantaneous thickness and loading ***,initial groove angle in M–K model was not *** this paper,uniaxial tension tests and Nakazima tests were performed on 7B04 aluminum *** on Hill 48 yield criterion and M–K model,the prediction model of FLC was *** increase of thickness can enhance ***,it is necessary to consider through-thickness normal stress and initial groove angle in prediction *** the left side of FLC,the effect of initial groove angle on FLC is weakened by increasing sheet *** the right side of FLC,the effect of initial groove angle on FLC is strengthened by increasing sheet *** the right side of FLC,the relation between limit strain points with different thicknesses is linear under one certain loading *** has decisive effect on through-thickness normal stress level and the changing trendy of through-thickness normal stress during calculation is different under different stress condition.

关键词： Forming limit Initial groove angle M–K model Non-constant through-thickness normal stress Thickness

Effect of terrain on landscape patterns and ecological effects by a gradient-based RS and GIS analysis

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Journal of Forestry Research 2017年第5期28卷 1061-1072页

作者： Wenfeng Gong haibo wang Xiaofeng wang Wenyi Fan Philip Stott College of Hydraulic and Electrical Engineering Heilongjiang University College of Forestry Northeast Forestry University School of Animal and Veterinary Sciences The University of Adelaide

Terrain is an important environment factor that plays a vital role in human development by influencing the spatial layout of land use patterns. The terrain niche index, combined with slope and elevation, can comprehensively present detailed information about spatial differences in terrain and is superior to single terrain factors. We applied remote sensing and geographical information system to terrain gradient, used the non-dimensional distribution index to examine spatial distribution characteristics of various landscape types, and analyzed the ecological effects of landscape were quantitatively on terrain gradients. Eco-environment quality (EEQ) was evaluated using the forestry operation area as the evaluation unit. The spatial distributions in various landscapes were significantly influenced by terrain factors, especially by bodies of water, cropland and residential land. The spatial distribution varied greatly in different terrain gradients for similar landscape types. The areas associated with good, intermediate and poor EEQ were occupied primarily by natural landscape, semi-natural and largely artificial landscapes, respectively.

关键词： Terrain niche index Spatial distribution characteristics Distribution index Eco-environment quality

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车联网卡实名登记系统应用分析

汽车电器 2025年第2期 18-21,29页

作者：彭杰方剑王君武王海波湖北汽车工业学院湖北十堰435003 东风商用车有限公司湖北十堰442000 湖北正奥比克希汽车电气系统有限公司湖北十堰442000

车联网卡作为连接车辆与互联网的桥梁,在提供便捷服务的同时,也伴随着信息安全和隐私保护的严峻挑战。随着数字化经济的快速发展,电信诈骗犯罪日益猖獗,车联网卡也成为了不法分子的潜在利用工具。设计开发车联网卡实名登记系统,运用光... 详细信息

车联网卡作为连接车辆与互联网的桥梁,在提供便捷服务的同时,也伴随着信息安全和隐私保护的严峻挑战。随着数字化经济的快速发展,电信诈骗犯罪日益猖獗,车联网卡也成为了不法分子的潜在利用工具。设计开发车联网卡实名登记系统,运用光学字符识别(OCR)与人脸识别等先进技术,实现人、车、卡三者信息的紧密绑定。这一系统的推出,不仅筑牢网络安全的防线,也进一步增强数据安全和个人隐私安全的保障力度,为构建和谐社会注入强大的科技力量。

关键词：车联网卡实名登记管理系统光学字符识别人脸识别

Theoretical analysis on quasi-static lateral compression of elliptical tube between two rigid plates

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Applied Mathematics and Mechanics(English Edition) 2015年第8期36卷 1005-1016页

作者： Ruirui LIU haibo wang Jialing YANG Hua LIU Yuxin SUN School of Aeronautic Science and Engineering Beihang University Jiuquan Satellite Launch Center

Based on the rigid plastic theory; the load-deflection functions with and without considering the effect of strain hardening are respectively derived for an elliptical tube under quasi-static compression by two parallel rigid plates. The non-dimensional load-deflection responses predicted by the present theory and the finite element simula- tions are compared, and the favorable agreement is found. The results show that strain hardening may have a noticeable influence on the load-deflection curves of an elliptical tube under quasi-static compression. Compared with the circular counterpart, the ellip- tical tube exhibits different energy absorption behavior due to the difference between the major axis and the minor axis. When loaded along the major axis of a slightly oval tube, a relative even and long plateau region of the load-deflection curve is achieved, which is especially desirable for the design of energy absorbers.

关键词： elliptical tube strain hardening ovality quasi-static lateral compression

Surface Nanocrystallization of C45E4 Steel by Ultrafast Electropulsing-ultrasonic Surface Treatment

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Journal of Wuhan University of Technology(Materials Science) 2017年第6期32卷 1426-1432页

作者：陈龙 wang haibo LIU Dan YE Xiaoxin 唐国翌 School of Materials Science and Engineering Tsinghua University Beijing 100084 China Advanced Materials Institute GraduateSchool at Shenzhen Tsinghua University Shenzhen 518055 China Key Laboratory for Advanced Materials of Ministry of Education Department of Materials Science and Engineering Tsinghua University Beijing 100084 China

The effect of high-energy electropulsing-ultrasonic surface treatment（EUST） on the surface properties and the microstructure evolution of C45 E4 steel was investigated. Refined microstructure and reduced surface roughness were obtained owing to the surface nanocrystallization process. Compared with the ultrasonic surface treatment（UST）, the impact depth of the surface strengthened layer was increased by 40% to 700 μm after EUST. The average grain size of the surface nanocrystallization layer was reduced to 30-50 nm. The surface roughness of the C45 E4 steel was reduced to 0.25 μm, and the surface microhardness was dramatically enhanced to 460 HV. The improvement of microstructure and micro-hardness at ambient temperature was likely attributed to the acceleration of atomic diffusion and the enhancement of plastic deformation ability in the surface strengthened layer under the influence of electropulsing. Due to the electropulsing-assisted ultrasonic strengthening effect, the surface nanocrystallization in this ultrafast procedure was noticeably enhanced.

关键词： electropulsing-ultrasonic surface treatment surface nanocrystallization refinedmicrostructure microhardness

Yield Loci of TRIP590 Advanced High Strength Steel Based on Biaxial Loading Test

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Transactions of Nanjing University of Aeronautics and Astronautics 2019年第4期36卷 686-692页

作者： GUAN Yanzhi LI Jiaxin wang haibo YAN Yu College of Mechanical and Materials Engineering North China University of TechnologyBeijing 100144P.R.China Engineering Research Center of Variable Cross-Section Roll Forming Beijing 100144P.R.China

The main purpose of the paper is to obtain the experimental yield loci of TRIP590 advanced high strength steel,and to compare it with the theoretical loci in order to obtain the best yield criterion for this ***,the biaxial loading tests under different loading paths in the method of load control are carried ***,the experimental yield loci of different deformation stages are ***,the experimental yield loci are compared with the theoretical loci of Mises criterion and Hill48 criterion,the parameters of which are calculated based on the r?value and the yield stress method,*** results show that the accuracy of the theoretical yield loci of Hill48 based on the yield stress is higher than that of Mises criterion and Hill 48 criterion based on r?value method.

关键词： TRIP590 advanced high strength steel yield locus yield criterion

Prediction of Eight Earings in Deep Drawing of 5754O Aluminum Alloy Sheet

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Chinese Journal of Mechanical Engineering 2019年第5期32卷 136-144页

作者： haibo wang Mingliang Men Yu Yan Min Wan Qiang Li School of Mechanical and Materials Engineering North China University of TechnologyBeijing 100144China School of Mechanical Engineering and Automation Beihang UniversityBeijing 100083China

Earings appear easily during deep drawing of cylindrical parts owing to the anisotropic properties of ***,current methods cannot fully utilize the mechanical properties of material,and the number of earings obtained differ with the simulation *** order to predict the eight-earing problem in the cylindrical deep drawing of 5754O aluminum alloy sheet,a new method of combining the yield stress and anisotropy index(r-value)to solve the parameters of the Hil 148 yield function is *** general formula for the yield stress and r-value in any direction is *** a 5754O aluminum alloy sheet as an example in this study,the deformation area in deep drawing is divided into several equal sectorial regions based on the *** parameters of the Hill48 yield function are solved based on the yield stress and r-value simultaneously for the corresponding deformation *** element simulations of deep drawing based on new and existing methods are carried out for comparison with experimental *** study provides a convenient and reliable way to predict the formation of eight earings in the deep drawing process,which is expected to be useful in industrial *** results of this study lay the foundation for the optimization of the cylindrical deep drawing process,including the optimization of the blank shape to eliminate earing defects on the final product,which is of great importance in the actual production process.

关键词： Anisotropy Deep drawing Yield function Finite element simulation

Effects of O3/Cl2 disinfection on corrosion and opportunistic pathogens growth in drinking water distribution systems

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Journal of Environmental Sciences 2018年第11期30卷 38-46页

作者： haibo wang Chun Hu Suona Zhang Lizhong Liu Xueci Xing Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085 China Research Institute of Environmental Studies at Greater Bay School of Environmental Sciences and Engineering Guangzhou University Guangzhou 510006 China University of Chinese Academy of Sciences Beijing 100049 China

The effects of O3/Cl2 disinfection on corrosion and the growth of opportunistic pathogens in drinking water distribution systems were studied using annular reactors （ARs）. The corrosion process and most probable number （MPN） analysis indicated that the higher content of iron-oxidizing bacteria and iron-reducing bacteria in biofilms of the AR treated with O3/Cl2 induced higher Fe304 formation in corrosion scales. These corrosion scales became more stable than the ones that formed in the AR treated with Cl2 alone. O3/Cl2 disinfection inhibited corrosion and iron release efficiently by changing the content of corrosion-related bacteria. Moreover, ozone disinfection inactivated or damaged the opportunistic pathogens due to its strong oxidizing properties. The damaged bacteria resulting from initial ozone treatment were inactivated by the subsequent chlorine disinfection. Compared with the AR treated with Cl2 alone, the opportunistic pathogens M. auium and L. pneumophila were not detectable in effluents of the AR treated with O3/Cl2, and decreased to （4.60 ± 0.14） and （3.09 ± 0.12） loglo （gene copies/g corrosion scales） in biofilms, respectively. The amoeba counts were also lower in the AR treated with O3/Cl2. Therefore, O3/Cl2 disinfection can effectively control opportunistic pathogens in effluents and biofilms of an AR used as a model for a drinking water distribution system.

关键词： Ozone Chlorine Corrosion Opportunistic pathogens Drinking water distribution systems