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基于2-opt优化蚁群算法的生鲜食品配送路径规划研究 认领 引用
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作者 林露华 吴闽泉 《粮油食品科技》 CAS CSCD 北大核心 2026年第3期254-262,共9页
随着电子商务蓬勃发展,生鲜食品配送成为现代物流核心分支,但传统单目标路径规划及常规多目标优化方法在适配生鲜配送易腐、时效特性上存在局限。为此,本研究先构建考虑配送时间与食品新鲜度的生鲜食品多目标配送路径规划模型(FMO-DRP)... 随着电子商务蓬勃发展,生鲜食品配送成为现代物流核心分支,但传统单目标路径规划及常规多目标优化方法在适配生鲜配送易腐、时效特性上存在局限。为此,本研究先构建考虑配送时间与食品新鲜度的生鲜食品多目标配送路径规划模型(FMO-DRP),通过加权求和法将多目标转化为单目标函数,并设定了车辆容量、进出平衡等约束条件。然后,结合两元素优化局部搜索策略(2-opt)与蚁群优化算法(ACO),设计了2-opt-ACO算法,通过动态信息素初始化与路径局部优化提升算法的模型求解性能。实验结果表明,在Solomon RC105数据集上,2-opt-ACO算法较传统ACO算法误差百分比降低5%,解方差低至0.008。2-opt-ACO算法的平均客户满意度达0.92,平均配送时长123.8 min,较对比方法表现更优。在不同规模仓库场景下,2-opt-ACO算法总成本较遗传算法和禁忌搜索算法低3.27%~9.26%,平均满意度高7.59%~13.89%,收敛速度提升22.6%~38.42%。研究结论表明,2-opt-ACO算法在生鲜食品配送路径规划中具有显著优势,有效平衡了企业成本与客户满意度,为生鲜物流行业的智能化、高效化发展提供了新的理论模型与求解方法。 展开更多
关键词 2-opt局部优化 蚁群算法 生鲜食品 配送路径 多目标
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2-complex Symmetric Weighted Composition Operators on Fock Space of CN 认领 引用
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作者 JIANG Zhijie 《数学进展》 CSCD 北大核心 2025年第1期37-49,共13页
The aim of the present paper is to study 2-complex symmetric bounded weighted composition operators on the Fock space of CN with the conjugations J and Jt,A,b defined by ■ respectively,where k(z1,...,z_N)=(... The aim of the present paper is to study 2-complex symmetric bounded weighted composition operators on the Fock space of CN with the conjugations J and Jt,A,b defined by ■ respectively,where k(z1,...,z_N)=(■,...,■),t∈C,b∈CN and A is a linear operator on CN.An example of 2-complex symmetric bounded weighted composition operator with the conjugation Jt,A,b is given. 展开更多
关键词 Fock space weighted composition operator 2-complex symmetric operator reproducing kernel function
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Direct versus indirect 2D/3D heterojunction engineering:Ordered interface design for ultastable perovskite solar cells 认领 引用 被引量：1
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作者 Kaiyu Wang Xiuhong Sun +7 位作者 Cheng Peng Qiangqiang Zhao Bingqian Zhang Tianci Wu Xiaoxu Zhang Shenglai Wang Xiao Wang Shuping Pang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第3期520-527,共8页
While 2D/3D heterostructures are widely employed to improve the stability of perovskite optoelectronic devices,their effectiveness is fundamentally governed by the crystallinity of the interfacial structure -a factor ... While 2D/3D heterostructures are widely employed to improve the stability of perovskite optoelectronic devices,their effectiveness is fundamentally governed by the crystallinity of the interfacial structure -a factor often overlooked.Disordered interfaces exhibit thermodynamic metastability,where ion diffusion induces sequential phase transitions from low-n to high-n phases.Here,we construct atomically ordered 2D/3D interfaces using phase-pure 2D perovskite capping layers,which reduce the interfacial phase transition rate by 95%and effectively suppress ion migration.As a result,devices exhibit outstanding operational stability,retaining over 99%of their initial power conversion efficiency after 1500 h of continuous operation,along with excellent thermal durability at 85℃.These findings identify interfacial order as a critical parameter for regulating ion dynamics and phase behavior,providing a robust design principle for achieving high-efficiency,long-lifetime perovskite technologies. 展开更多
关键词 2D/3D heterostructures Ordered interface Operational stability
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The two-mode quantum Fresnel operator and the multiplication rule of 2D Collins diffraction formula 认领 引用 被引量：2
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作者 谢传梅 范洪义 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第4期296-300,共5页
By using the two-mode Fresnel operator we derive a multiplication rule of two-dimensional （2D） Collins diffraction formula, the inverse of 2D Collins diffraction integration can also be conveniently derived in this ... By using the two-mode Fresnel operator we derive a multiplication rule of two-dimensional （2D） Collins diffraction formula, the inverse of 2D Collins diffraction integration can also be conveniently derived in this way in the context of quantum optics theory. 展开更多
关键词 2D Collins diffraction formula two-mode Fresnel operator
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THE EXISTENCE AND BLOW-UP OF THE RADIAL SOLUTIONS OF A(k1,k2)-HESSIAN SYSTEM INVOLVING A NONLINEAR OPERATOR AND GRADIENT 认领 引用 被引量：1
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作者 Guotao WANG Zedong YANG +1 位作者 Jiafa XU Lihong ZHANG 《Acta Mathematica Scientia》 SCIE CSCD 2022年第4期1414-1426,共13页
In this paper,we are concerned with the existence of the positive bounded and blow-up radial solutions of the(k1,k2)-Hessian system■where G is a nonlinear operator,Ki=Ski(λ(D2 zi))+ψi(|x|)|▽zi|ki,i=... In this paper,we are concerned with the existence of the positive bounded and blow-up radial solutions of the(k1,k2)-Hessian system■where G is a nonlinear operator,Ki=Ski(λ(D2 zi))+ψi(|x|)|▽zi|ki,i=1,2.Under the appropriate conditions on gi and g2,our main results are obtained by using the monotone iterative method and the Arzela-Ascoli theorem.Furthermore,our main results also extend the previous existence results for both the single equation and systems. 展开更多
关键词 (k1,k2)-Hessian system nonlinear operator blow-up monotone iterative method gradient
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Phase-Pure 2D Interfacial Perovskite Passivation for Stable and Efficient Photovoltaics 认领 引用
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作者 Ming-Xin Li Shuo Wang +7 位作者 Chao-Qun Yan Xue-Yuan Gong Wen-Li Wang Yun-Lang Chen Rong-Xuan Li Jiaju Fu Ming-Hua Li Jin-Song Hu 《Carbon Energy》 SCIE EI CAS CSCD 2026年第4期219-237,共19页
Phase-pure two-dimensional(2D)interfacial passivation has emerged as an effective strategy for addressing the intrinsic instability and interfacial defects of three-dimensional(3D)perovskite absorbers.However,conventi... Phase-pure two-dimensional(2D)interfacial passivation has emerged as an effective strategy for addressing the intrinsic instability and interfacial defects of three-dimensional(3D)perovskite absorbers.However,conventionally formed 2D layers often suffer from mixed-n phases,heterogeneous quantum-well distributions,and disordered orientation,which impede charge transport,distort energy-level alignment,and accelerate structural degradation.In this review,we elucidate the thermodynamic and kinetic origins of mixed-phase formation and discuss how dimensional heterogeneity adversely impacts carrier dynamics and device stability.We then summarize recent advances in achieving phase-pure 2D perovskite interlayers that enable precise n-value control,favorable crystal orientation,and optimized interfacial energetics.These strategies yield highly ordered 2D/3D heterostructures that effectively suppress ion migration,mitigate non-radiative recombination,and significantly enhance longterm operational stability.Finally,we outline the remaining challenges and emerging opportunities for scalable,phase-pure engineering toward high-efficiency and stable perovskite photovoltaic technologies.Overall,this review provides a unified framework linking phase purity,interfacial ordering,and device stability,offering guidance for the development of next-generation robust perovskite photovoltaics. 展开更多
关键词 2D perovskite dimensionality regulation interface contact operational stability pure phase
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GENERALIZED OPERATORS AND P(φ)_2 QUANTUM FIELDS 认领 引用 被引量：1
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作者 黄志远 让光林 《Acta Mathematica Scientia》 SCIE 2004年第4期589-596,共8页
In this paper by Sobolev imbedding theorem and characterization theorem of generalized operators the existence of P(φ)2 quantum fields as generalized operators is obtained and a rigorous mathematical interpretation o... In this paper by Sobolev imbedding theorem and characterization theorem of generalized operators the existence of P(φ)2 quantum fields as generalized operators is obtained and a rigorous mathematical interpretation of renormalization procedure is given under white noise theory. 展开更多
关键词 White noise calculus generalized operator P(φ)2 quantum fields
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Mitigating the carbonate issues in electrochemical CO2 reduction:Fundamental understanding and design strategies 认领 引用
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作者 Yan Qiao Yanan Wang +3 位作者 Mengfan Li Dun Li Wenchuan Lai Hongwen Huang 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第5期152-167,共16页
The electrochemical CO2 reduction(CO2R)holds the potential to manufacture carbon-based chemicals and fuels while advancing toward carbon neutrality.On the path to achieving practical CO2R,a significant challe... The electrochemical CO2 reduction(CO2R)holds the potential to manufacture carbon-based chemicals and fuels while advancing toward carbon neutrality.On the path to achieving practical CO2R,a significant challenge lies in the formation of carbonate salts due to the interplay between CO2,local alkalinity and metal cations.The carbonate issue leads to the wastage of CO2 reactant,thus resulting in low carbon utilization efficiency and high costs for carbonate regeneration.Additionally,such salt formation can threaten the operation stability of the CO2R in electrolyzers equipped with gas diffusion electrodes(GDE).These challenges motivate us to conduct the present review,aiming to provide a comprehensive understanding and propose solution strategies for the carbonate problem.We start from the mechanism insights into carbonate formation with specific analysis on the kinetics of carbonate formation,mass transfer process,and the influence of interfacial p H,followed by the exposition of advanced techniques to monitor the carbonate accumulation.Next,the design strategies to solve the carbonate problem including the optimization of electrolyte,electrode,membranes and operation conditions,are presented,with a highlight on acidic CO2 electrolysis system without introducing metal cations into electrolyte systems.We finally end up by offering future opportunities in this evolving field.These timely and inspiring perspectives can guide researchers in addressing carbonate-related issues and advance CO2R toward practical feasibility. 展开更多
关键词 Electrochemical CO2reduction Carbonate issues Fundamental insight Addressing strategy Operation conditions
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Projection Operator on Rational Noncommutative Orbifold T^2/Z_4 认领 引用
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作者 冯俊 杨战营 +2 位作者 张凯 侯伯宇 石康杰 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第7期107-118,共12页
In this paper, we introduce the reduced matrix in kq representation and provide the reduced matrix elements of a projection operator P on the rational noncommutative orbifold T^2/Z_4.we give the closed form for the pr... In this paper, we introduce the reduced matrix in kq representation and provide the reduced matrix elements of a projection operator P on the rational noncommutative orbifold T^2/Z_4.we give the closed form for the projector by Jacobi elliptical functions. Since projectors correspond to soliton solutions of the field theory on the noncommutative orbifold, we thus present a corresponding soliton solution. 展开更多
关键词 soliton projection operator noncommutative orbifold T2/Z4
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气态CO2输送管道应力腐蚀开裂研究进展及展望 认领 引用
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作者 欧阳欣 谢锐捷 +4 位作者 满建峰 刘广瑜 孙盛 胡子超 王财林 《油气储运》 CAS 北大核心 2026年第4期383-396,共14页
【目的】为解决碳捕集、利用与封存(Carbon Capture,Utilization and Storage,CCUS)工程中短距离CO2输送问题,利用管道管输气态CO2是一种经济的解决方案。但CO2管道在严重的内腐蚀与外部应力环境中易发生应力腐蚀开裂(Stress C... 【目的】为解决碳捕集、利用与封存(Carbon Capture,Utilization and Storage,CCUS)工程中短距离CO2输送问题,利用管道管输气态CO2是一种经济的解决方案。但CO2管道在严重的内腐蚀与外部应力环境中易发生应力腐蚀开裂(Stress Corrosion Cracking,SCC),使得气态CO2输送管道的服役可靠性问题日益受到关注。【方法】对不同相态CO2管道SCC的研究现状进行全面梳理,并聚焦气态CO2输送的特殊环境,探讨了其腐蚀行为、裂纹萌生及扩展机理;在此基础上,重点阐述了气态CO2环境中阳极溶解-薄膜破裂机制与氢致开裂的协同作用过程,进而系统分析了材料、环境以及应力状态对管线钢SCC敏感性的多因素耦合影响机制,并总结了现有研究的不足之处。【结果】气态CO2压力较低,水相以微滴形式局部凝结于管壁,形成不连续、多孔的FeCO3腐蚀产物膜,难以提供有效保护;在微观组织中,细针状铁素体因高位错密度有利于钝化膜形核;非金属夹杂物通过引入界面应力集中、充当氢陷阱及引发微电偶腐蚀,显著促进裂纹形核;气态CO2中的杂质气体通过改变水相析出行为、参与阴极反应、破坏产物膜稳定性等方式,显著提高SCC敏感性;水分是诱导管道局部腐蚀与内壁顶部腐蚀的关键因素,其冷凝行为受温度与压力影响。【结论】当前对气态CO2管道的SCC机理研究仍较少,要实现CO2输送管道的安全平稳运行,今后的研究中应重点关注的问题包括:明确流速、剪切力及相变对气态CO2环境中局部腐蚀坑形成与扩展的影响;含微量水的气态CO2环境耦合外加应力原位腐蚀电化学数据的监测与分析;加快建立在役油气管道改输气态CO2的管道SCC评价体系。(图2,参96) 展开更多
关键词 气态CO2 管道 应力腐蚀开裂 阳极溶解 安全运行
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Residual Operator of Type-2 Triangular Norms on Convex Normal Upper Semi-Continuous Fuzzy Truth Values 认领 引用
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作者 Xinxing WU Shuangfeng LUO +1 位作者 Zhiyi ZHU Lidong WANG 《Journal of Mathematical Research with Applications》 CSCD 2024年第3期285-290,共6页
Based on the residual implication of continuous triangular norms,we obtain the expression of residual operator for extended operators(type-2 triangular norms)of continuous triangular norms on convex normal upper semi-... Based on the residual implication of continuous triangular norms,we obtain the expression of residual operator for extended operators(type-2 triangular norms)of continuous triangular norms on convex normal upper semi-continuous fuzzy truth values,answering an open problem in[D.LI,Inf.Sci.,2015,317:259-277]. 展开更多
关键词 type-2 fuzzy set triangular norm(t-norm) residual operator
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New 3-mode bosonic operator realization of SU(2) Lie algebra:From the point of view of squeezing 认领 引用
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作者 笪诚 陈千帆 范洪义 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第9期62-64,共3页
We consider the quantum mechanical SU（2） transformation e^2λJzJ±e^-2λJz = e^±2λJ±as if the meaning of squeezing with e^±2λ being squeezing parameter. By studying SU（2） operators （J±,... We consider the quantum mechanical SU（2） transformation e^2λJzJ±e^-2λJz = e^±2λJ±as if the meaning of squeezing with e^±2λ being squeezing parameter. By studying SU（2） operators （J±, Jz） from the point of view of squeezing we find that （J±,Jz） can also be realized in terms of 3-mode bosonic operators. Employing this realization, we find the natural representation （the eigenvectors of J＋ or J-） of the 3-mode squeezing operator e^2λJz. The idea of considering quantum SU（2） transformation as if squeezing is liable for us to obtain the new bosonic operator realization of SU（2） and new squeezing operators. 展开更多
关键词 quantum mechanical SU（2） transformation 3-mode squeezing operator new 3-mode bosonic op-erator realization of SU（2） Lie algebra
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基于K-means与2-Opt改进的贪心路径优化算法研究 认领 引用 被引量：3
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作者 黄启华 冯子俊 +1 位作者 杜玉晓 王烁哲 《自动化与信息工程》 2025年第2期9-17,共9页
针对当前衣物裁剪路径优化算法无法同时满足高精度和低时间消耗的问题,提出基于K-means与2-Opt改进的贪心路径优化算法。首先,利用K-means聚类算法进行大规模旅行商问题的局部分组;然后,采用2-Opt改进的贪心算法优化路径;最后,通过最近... 针对当前衣物裁剪路径优化算法无法同时满足高精度和低时间消耗的问题,提出基于K-means与2-Opt改进的贪心路径优化算法。首先,利用K-means聚类算法进行大规模旅行商问题的局部分组;然后,采用2-Opt改进的贪心算法优化路径;最后,通过最近邻连接方法对子问题的解进行类间连接。实验结果验证了该算法具有较好的路径和效率优化能力。 展开更多
关键词 衣物裁剪路径优化 K-means聚类算法 2-Opt算法 贪心算法
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中医腹针疗法治疗肥胖2型糖尿病理论溯源及临床应用探讨 认领 引用
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作者 郑雅峰 李捷 《辽宁中医药大学学报》 CAS 2026年第6期178-183,共6页
肥胖2型糖尿病(type 2 diabetes mellitus,T2DM)已成为对我国经济和人民生活产生重大影响的公共卫生问题,其防控形势极为严峻。中医腹针疗法基于神阙布气学说、脏腑理论、经络学说、生物全息论及现代医学理论而成,遵循中医的理、法、方... 肥胖2型糖尿病(type 2 diabetes mellitus,T2DM)已成为对我国经济和人民生活产生重大影响的公共卫生问题,其防控形势极为严峻。中医腹针疗法基于神阙布气学说、脏腑理论、经络学说、生物全息论及现代医学理论而成,遵循中医的理、法、方、穴原则,通过针刺腹部特定穴位或与全身部位相关的反应点,以治疗全身疾病,是微针系统的关键组成部分。其以神阙穴为核心,通过激活先天经络系统,结合脏腑气血调节和全息反馈效应,形成独特的治疗体系,具有“理论创新、操作简便、安全无痛、穴位精准、重复性好、疗效持久稳定”等显著特征,在治疗肥胖T2DM等慢性代谢性疾病方面具有明显优势。该文系统梳理中医腹针疗法在肥胖T2DM治疗中的理论溯源、操作规范(包括穴位选择、针刺手法、留针时间等关键技术参数)及其作用机制研究进展(涵盖基础研究和临床研究证据),为中医腹针疗法在临床实践中的标准化应用和疗效提升提供理论支撑和技术参考。 展开更多
关键词 中医腹针疗法 肥胖 T2DM 理论溯源 操作细节 作用机制
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生长刺激表达基因蛋白2及糖链抗原125预测瓣膜置换后恶性心律失常 认领 引用
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作者 李波 王雷 +2 位作者 姚鹏 丁斐 王晋旺 《心肺血管病杂志》 CAS 2026年第5期530-537,共8页
目的:探讨血清生长刺激表达基因蛋白2(growth stimulating express gene 2,ST2)及糖链抗原125(carbohydrate antigen 125,CA125)水平动态变化对老年(≥60岁)心脏瓣膜置换术后1年恶性心律失常(malignant arrhythmia,MA)患者的预测价值,... 目的:探讨血清生长刺激表达基因蛋白2(growth stimulating express gene 2,ST2)及糖链抗原125(carbohydrate antigen 125,CA125)水平动态变化对老年(≥60岁)心脏瓣膜置换术后1年恶性心律失常(malignant arrhythmia,MA)患者的预测价值,为临床预防MA提供参考。方法:连续选取2020年8月至2023年9月山西医科大学附属运城市中心医院收治的114例行瓣膜置换术的心脏瓣膜病患者为研究对象,均检测血清ST2、CA125水平,比较不同程度老年瓣膜病患者血清ST2、CA125水平,分析两项血清指标与瓣膜病严重程度的相关性。术后随访1年,统计术后31天至1年MA发生情况(排除早期MA),据此分为发生MA亚组,未发生MA亚组,比较不同MA发生情况老年瓣膜病患者血清ST2、CA125水平,并分析二者预测老年瓣膜病患者发生MA的价值。结果:重症瓣膜病组血清ST2、CA125水平均高于一般瓣膜病组(P<0.05);瓣膜病严重程度与血清ST2、CA125水平均呈正相关(P<0.05);发生MA亚组合并心房颤动比例、NT-proBNP水平高于未发生MA亚组(P<0.05);术前、术后3个月发生MA亚组血清ST2、CA125水平均高于未发生MA亚组(P<0.05);未发生MA组ST2、CA125水平下降百分比均高于发生MA组(P<0.05);合并心房颤动、NT-proBNP、ST2下降百分比、CA125下降百分比均为MA发生的独立影响因素(P<0.05);增强模型预测老年瓣膜病患者发生MA的曲线下面积(AUC)为0.949(95%CI:0.888~0.982),大于基础模型(P<0.05)。结论:老年心脏瓣膜置换术患者血清ST2、CA125水平与心脏瓣膜病变严重程度有关,当术后3个月ST2下降百分比<31.4%、CA125下降百分比<37.3%时MA发生风险较高,监测血清ST2、CA125水平变化对MA发生有较高预测价值。 展开更多
关键词 心脏瓣膜置换术 生长刺激表达基因蛋白2 糖链抗原125 恶性心律失常 受试者工作特征曲线
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Tailoring the number of lines for IGO-channel 2T0C DRAM comparable to conventional 2-line operation 1T1C structure for highly scaled cell volume 认领 引用
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作者 Jae-Hyeok Kwag Su-Hwan Choi +5 位作者 Daejung Kim Jun-Yeoub Lee Taewon Hwang Hye-Jin Oh Chang-Kyun Park Jin-Seong Park 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2025年第5期404-414,共11页
Capacitor-less 2T0C dynamic random-access memory(DRAM)employing oxide semiconductors(OSs)as a channel has great potential in the development of highly scaled three dimensional(3D)-structured devices.However,the use of... Capacitor-less 2T0C dynamic random-access memory(DRAM)employing oxide semiconductors(OSs)as a channel has great potential in the development of highly scaled three dimensional(3D)-structured devices.However,the use of OS and such device structures presents certain challenges,including the trade-off relationship between the field-effect mobility and stability of OSs.Conventional 4-line-based operation of the 2T0C enlarges the entire cell volume and complicates the peripheral circuit.Herein,we proposed an IGO(In-Ga-O)channel 2-line-based 2T0C cell design and operating sequences comparable to those of the conventional Si-channel 1 T1C DRAM.IGO was adopted to achieve high thermal stability above 800℃,and the process conditions were optimized to simultaneously obtain a high μFE of 90.7 cm2·V-1·s-1,positive Vth of 0.34 V,superior reliability,and uniformity.The proposed 2-line-based 2T0C DRAM cell successfully exhibited multi-bit operation,with the stored voltage varying from 0 V to 1 V at 0.1 V intervals.Furthermore,for stored voltage intervals of 0.1 V and 0.5 V,the refresh time was 10 s and 1000 s in multi-bit operation;these values were more than 150 and 15000 times longer than those of the conventional Si channel 1T1C DRAM,respectively.A monolithic stacked 2-line-based 2T0C DRAM was fabricated,and a multi-bit operation was confirmed. 展开更多
关键词 capacitor-less 2T0C DRAM cell design and operation atomic layer deposition oxide semiconductor monolithic stacked
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CO2驱采出液卧式分离器数值模拟研究 认领 引用
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作者 周三平 姚永昌 《化工技术与开发》 CAS 2026年第2期80-85,共6页
卧式分离器在油田CO2驱采出液的气液分离场景中应用广泛。本文采用计算流体力学数值模拟方法,通过数值试验研究了操作温度、操作压力及入口速度等参数对卧式分离器分离效率的影响规律。研究结果表明:温度与压力对油相分离效率的影响... 卧式分离器在油田CO2驱采出液的气液分离场景中应用广泛。本文采用计算流体力学数值模拟方法,通过数值试验研究了操作温度、操作压力及入口速度等参数对卧式分离器分离效率的影响规律。研究结果表明:温度与压力对油相分离效率的影响较小,而对CO2气体分离效率与综合分离效率的影响表现出相似的变化规律,二者均随温度升高而逐步上升,在60℃后趋于稳定,并于该温度下达到最高值,因此最佳操作温度为60℃;同时,二者均随压力升高而降低。CO2气体分离效率是决定综合分离效率变化趋势的主要因素。入口速度对CO2分离效率影响较小,而对油相分离效率及综合分离效率的影响较为一致,二者均随入口速度的增大先略有提升,在1.0m·s-1后逐渐下降,故最佳入口速度为1.0m·s-1。入口速度对综合分离效率的影响主要由油相分离效率主导,与CO2气体分离效率的影响机制形成互补。 展开更多
关键词 CO2驱 卧式分离器 气液分离 数值模拟 分离效率 操作参数
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Sustaining the driving force:Constant-voltage charging unlocks rapid and efficient Li-CO2 batteries 认领 引用
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作者 Wenqing Ma Mingjuan Gao +10 位作者 Jianping Ma Haiyang Gao Xianhong Li Siyu Liu Tianzhen Jian Yuyan Wang Longhua Ding Aizhu Wang Lihan Cai Xin Yu Hong Liu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第6期680-693,I0016,共14页
The large charging overpotential and sluggish kinetics of Li-CO2 batteries originate from both the high energy barrier for decomposing insulating discharge products and the mismatch between constantcurrent charging... The large charging overpotential and sluggish kinetics of Li-CO2 batteries originate from both the high energy barrier for decomposing insulating discharge products and the mismatch between constantcurrent charging and dynamic reaction kinetics.While cathode catalyst design dominates research,charging protocol optimization remains a critically underexplored avenue.Herein,we demonstrate that a constant-voltage(CV)charging strategy,as opposed to the conventional constant-current(CC)mode,dramatically enhances the charging rate,energy efficiency,and cyclability.Using a Ru@rGO cathode,the 4.0 V CV-charging protocol CV charging is identified as optimal,enabling rapid charging(~13.6 min),high energy efficiency of 72%,and stable cycling over 200 cycles.In-situ differential electrochemical mass spectrometry reveals rapid and efficient CO2 evolution kinetics under the 4.0 V CVcharging mode.Combined with X-ray photoelectron spectroscopy and Raman mapping,it is shown that this protocol ensures near-complete decomposition of both Li2 CO3 and Li2C2O4,whereas CC-charging and suboptimal CV-charging protocols leave significant residues or induce severe parasitic reactions.This work establishes CV-charging as an effective strategy to overcome the kinetic limitations of Li-CO2 batteries for a specific configuration,and provides a framework for optimizing charging protocols across battery systems. 展开更多
关键词 Constant current charging Constant voltage charging Operation protocol Li-CO2battery Energy efficiency
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Suppressing ion migration and electrode corrosion in perovskite solar cells through Nb2O5interface engineering 认领 引用
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作者 Shangchen Zhang Can Li +4 位作者 Xiangyu Liao Liming Du Jishan Shi Xian-Zong Wang Zhen Li 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第5期381-389,I0009,共9页
Ion migration and electrode corrosion limit the operational stability of perovskite solar cells(PSCs),hindering their commercialization.Herein,we demonstrate that Nb2O5films effectively address these challenges ... Ion migration and electrode corrosion limit the operational stability of perovskite solar cells(PSCs),hindering their commercialization.Herein,we demonstrate that Nb2O5films effectively address these challenges when incorporated as buffer layers between the electron transport layer(ETL)and the metal electrode.Electrochemical analysis combined with density functional theory(DFT)calculations reveals that Nb2O5exhibits exceptional corrosion resistance against iodide-induced degradation,effectively blocking bidirectional diffusion of iodide ions and metal atoms.Furthermore,the Nb2O5buffer layer optimizes energy band alignment and interfacial contact,strengthens the built-in electric field,and suppresses non-radiative recombination,enabling efficient electron extraction.As a result of these synergistic effects,the Nb2O5modified PSCs achieve a champion power conversion efficiency(PCE)of 25.85%,with an open-circuit voltage of 1.194 V and a fill factor of 85.35%,significantly outperforming the control device with a PCE of 23.97%.The Nb2O5modified devices demonstrate excellent operational stability.The device retains 94%of its initial PCE after 500 h of maximum power point(MPP)tracking under ambient conditions with 60-65%relative humidity.This cost-effective approach establishes oxide buffer layers as a practical strategy to advance the commercial viability of PSCs,and provides fundamental insights into interface corrosion mechanisms and engineering principles of ETL/electrode interfaces for long-term device stability. 展开更多
关键词 PSCs Long-term operational stability Electrochemical analysis Nb2O5buffer layer
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The Properties of the Shear Gradient Operator and Its Application in Image Deblurring 认领 引用
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作者 LIU Xiaofeng LU Lixuan ZHANG Tao 《Wuhan University Journal of Natural Sciences》 CAS CSCD 2025年第5期427-440,共14页
The utilization of gradient operators is prevalent in image processing,as they effectively detect edges and provide directional information.However,these operators only differentiate the horizontal and vertical direct... The utilization of gradient operators is prevalent in image processing,as they effectively detect edges and provide directional information.However,these operators only differentiate the horizontal and vertical directions,ignoring details and causing loss of information in other directions.This paper introduces the shear gradient operator to overcome this limitation by capturing details accurately in multiple directions.It investigates the properties of the shear gradient operator and proposes the shear total variation(STV)norm for image deblurring.By combining non-convex regularization to avoid excessive penalty and retain image details,a novel deblurring model integrating the STV norm and the L1/L2 minimization is proposed.The alternating direction method of multipliers(ADMM)algorithm is employed to solve this computationally challenging model,demonstrating exceptional performance in non-blind image deblurring through experiments. 展开更多
关键词 shear gradient operator shear total variation norm image deblurring alternating direction method of multipliers(ADMM) L1/L2minimization
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