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Amorphous phase engineering in Ni-doped MoS_(2)@C:synergistic structural-electronic modulation for high-energy-power sodium-ion hybrid capacitors
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作者 Ziyang Jia Yishuang He +9 位作者 Xiaotong Zhang Xi Chen Xinhai Yuan Lili Liu Lijun Fu Yuhui Chen Tao Wang Xinbing Cheng Faxing Wang Yuping Wu 《Science China Chemistry》 2026年第2期768-776,共9页
Sodium-ion hybrid capacitors(SICs)offer inherent energy-power synergy but are constrained by mismatched kinetics and life spans between the anode and cathode materials.Two-dimensional MoS_(2)@C composites demonstrate ... Sodium-ion hybrid capacitors(SICs)offer inherent energy-power synergy but are constrained by mismatched kinetics and life spans between the anode and cathode materials.Two-dimensional MoS_(2)@C composites demonstrate excellent kinetics and structural stability,thanks to the built-in electric field of the carbon heterostructure and its adaptability to volume changes.Yet,the carbon shell imposes a physical barrier to interfacial Na^(+)diffusion,while deep discharge induces the formation of crystalline Na_(2)S,accompanied by severe volumetric expansion and sluggish reversibility—factors that accelerate capacity fading and structural degradation.To address these challenges,a trace-level Ni doping strategy is introduced,enabling precise modulation of the composite's interlayer structure,electronic configuration,and reaction pathway.Ni incorporation expands the MoS_(2) interlayer spacing,reconstructs short-range ordered nanocrystals within a hierarchically porous network,and promotes Na^(+)diffusion by weakening interlayer van der Waals forces.Orbital hybridization between Ni-3d and Mo-4d/S-3p states enhances electronic conductivity and reduces charge transfer resistance.Critically,Ni doping enhances electron transfer from Ni to sulfur,which weakens Na–S bonds and promotes the formation of amorphous Na_(2)S,thereby suppressing crystalline Na_(2)S and enabling a reversible MoS_(2)/Na_(2)S conversion mechanism for improved structural stability and cycling performance.As a result,the optimized MoS_(2)-Ni@C anode delivers a high reversible capacity of 334 mAh g^(-1)at 10 A g^(-1)with 68%retention after 10,000 cycles.When assembled into a SIC device(MoS_(2)-Ni@C//AC),it achieves an energy density of 135 Wh kg^(-1)at a power density of 60.8 kW kg^(-1)(based on anode mass),with 76%retention over 3,000 cycles. 展开更多
关键词 hybrid capacitor sodium ion ANODE MoS_(2) amorphous phase engineering
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基于Sepic-Cuk的零纹波双极性输出直流变换器
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作者 陈柯旭 林国庆 《电气技术》 2026年第2期25-31,39,共8页
随着光伏发电、燃料电池等新能源更多地接入电网,双极性直流微电网优势愈发显著。针对变换器输入电流纹波较大、输出增益较低等不足,研制一种基于Sepic-Cuk结构的零纹波双极性输出直流变换器。该变换器共用输入电感和开关管,将Sepic和Cu... 随着光伏发电、燃料电池等新能源更多地接入电网,双极性直流微电网优势愈发显著。针对变换器输入电流纹波较大、输出增益较低等不足,研制一种基于Sepic-Cuk结构的零纹波双极性输出直流变换器。该变换器共用输入电感和开关管,将Sepic和Cuk变换器集成,并根据两种变换器输出电压增益大小相同且极性相反的特点,实现双极性对称电压输出。采用电容钳位技术抑制输入电流纹波,引入耦合电感提高输出电压以解决增益不足问题。对其展开系统性分析,阐释工作原理、分析纹波抑制机理,并针对关键参数进行工程设计。最后,研制出一台额定功率130 W、开关频率为100 kHz、输入电压为40 V且总输出电压为360 V(±180 V)的实验样机。实验样机的各输出电压实测值与理论计算结果基本吻合,转换效率达到96.1%,证明了该变换器的有效性与可行性。 展开更多
关键词 零纹波 电容钳位 Sepic-Cuk 直流变换器 耦合电感
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Hydrogen-Bonded Interfacial Super-Assembly of Spherical Carbon Superstructures for High-Performance Zinc Hybrid Capacitors
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作者 Yang Qin Chengmin Hu +4 位作者 Qi Huang Yaokang Lv Ziyang Song Lihua Gan Mingxian Liu 《Nano-Micro Letters》 2026年第2期88-104,共17页
Carbon superstructures with multiscale hierarchies and functional attributes represent an appealing cathode candidate for zinc hybrid capacitors,but their tailor-made design to optimize the capacitive activity remains... Carbon superstructures with multiscale hierarchies and functional attributes represent an appealing cathode candidate for zinc hybrid capacitors,but their tailor-made design to optimize the capacitive activity remains a confusing topic.Here we develop a hydrogen-bond-oriented interfacial super-assembly strategy to custom-tailor nanosheet-intertwined spherical carbon superstructures(SCSs)for Zn-ion storage with double-high capacitive activity and durability.Tetrachlorobenzoquinone(H-bond acceptor)and dimethylbenzidine(H-bond donator)can interact to form organic nanosheet modules,which are sequentially assembled,orientally compacted and densified into well-orchestrated superstructures through multiple H-bonds(N-H···O).Featured with rich surface-active heterodiatomic motifs,more exposed nanoporous channels,and successive charge migration paths,SCSs cathode promises high accessibility of built-in zincophilic sites and rapid ion diffusion with low energy barriers(3.3Ωs-0.5).Consequently,the assembled Zn||SCSs capacitor harvests all-round improvement in Zn-ion storage metrics,including high energy density(166 Wh kg-1),high-rate performance(172 m Ah g^(-1)at 20 A g^(-1)),and long-lasting cycling lifespan(95.5%capacity retention after 500,000 cycles).An opposite chargecarrier storage mechanism is rationalized for SCSs cathode to maximize spatial capacitive charge storage,involving high-kinetics physical Zn^(2+)/CF_(3)SO_(3)-adsorption and chemical Zn^(2+)redox with carbonyl/pyridine groups.This work gives insights into H-bond-guided interfacial superassembly design of superstructural carbons toward advanced energy storage. 展开更多
关键词 Hydrogen bonds Interfacial super-assembly Spherical carbon superstructures Zn hybrid capacitors Energy storage
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Organic deep-trap fillers enable 250℃polymer capacitors
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作者 Tianle Yue Ying Li 《Science China Materials》 2026年第3期1803-1805,共3页
Modern power electronics,from electric vehicles to renewable energy systems,demand capacitors that can reliably store high energy at elevated temperatures.Polymer dielectrics are widely used in capacitors due to their... Modern power electronics,from electric vehicles to renewable energy systems,demand capacitors that can reliably store high energy at elevated temperatures.Polymer dielectrics are widely used in capacitors due to their high breakdown strength and ease of processing,but they traditionally suffer from poor energy density at high temperatures[1-4]. 展开更多
关键词 electric vehicles polymer capacitors renewable energy systemsdemand high temperatures organic deep trap fillers energy density
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Oxygenation promoting Se-coordination of amorphous adjacent Nb-Nb diatomic pairs for high-performance sodium-ion hybrid capacitors
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作者 Wenxiu He Fanyan Zeng +4 位作者 Bowen Liao Qincheng Zheng Dui Ma Meilan Xie Yang Pan 《Journal of Energy Chemistry》 2026年第1期474-483,I0011,共11页
Transition metal selenides as sodium-ion hybrid capacitor(SIHC)anodes still suffer from amorphization difficulties and capacity degradation triggered by polyselenide dissolution.Herein,an atomistic amorphous strategy ... Transition metal selenides as sodium-ion hybrid capacitor(SIHC)anodes still suffer from amorphization difficulties and capacity degradation triggered by polyselenide dissolution.Herein,an atomistic amorphous strategy is proposed to construct adjacent Nb-Nb diatomic pairs with Se/O-coordination(Se4-Nb2-O2)in N-doped carbon-confined amorphous selenide clusters(a-Nb-Se/O@NC).Synergistic carbon confinement and hydrothermal oxygenation induce amorphization of Nb–Se bonds,eliminating crystalline rigidity while creating isotropic dual-ion transport channels and high-density active sites enriched with dangling bonds,thereby enhancing structural integrity and Na+storage capacity.The unique Se/O-coordinated Nb-Nb diatomic configuration establishes an electron-delocalized system,where the low electronegativity of Se counterbalances electron withdrawal from coordinated O at Nb centers.These strengthen d-p orbital hybridization,reduce Na+adsorption energy,and optimize charge transfer pathways and reaction kinetics in the amorphous clusters.Electrochemical tests reveal that the a-Nb-Se/O@NC anode delivers a high reversible capacity of 312.57 mAh g^(−1)and exceptional cyclic stability(103%capacity retention)after 5000 cycles at 10.0 A g^(−1).Assembled SIHCs achieve outstanding energy/power densities(207.1 Wh kg^(−1)/18966 W kg^(−1)),surpassing most amorphous and crystalline counterparts.This work provides methodological insights for the design of electrodes in high-power storage devices through atomic modulation and electronic optimization of amorphous selenides. 展开更多
关键词 Amorphous selenide clusters Adjacent Nb-Nb diatomic pairs Se/O hetero-coordination Microstructural modulation Sodium-ion hybrid capacitors
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PIC猪胴体性状和肉质性状研究及相关性分析
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作者 任慧波 崔清明 +9 位作者 杜丽飞 朱吉 邓缘 胡雄贵 左剑波 刘莹莹 李华丽 喻国均 陈晨 彭英林 《家畜生态学报》 北大核心 2025年第2期35-40,共6页
为了评价PIC猪的胴体性状和肉质性状,试验屠宰了健康的PIC猪9头,测定了其胴体性状、肉质性状和肌肉成分等相关指标,并分析了各性状间的相关性。结果表明,宰前活重为123.78 kg的PIC猪,屠宰率为75.58%,瘦肉率为60.8%,平均背膘厚25.62 mm,... 为了评价PIC猪的胴体性状和肉质性状,试验屠宰了健康的PIC猪9头,测定了其胴体性状、肉质性状和肌肉成分等相关指标,并分析了各性状间的相关性。结果表明,宰前活重为123.78 kg的PIC猪,屠宰率为75.58%,瘦肉率为60.8%,平均背膘厚25.62 mm,眼肌面积45.95 cm 2,滴水损失2.14%,嫩度43.56N,肌内脂肪含量2.23%,总氨基酸含量20.3%,饱和脂肪酸含量41.54%,总不饱和脂肪酸含量58.44%。性状间相关性分析表明,PIC猪的宰前活重与屠宰率呈显著正相关(P<0.05),肌内脂肪与MUFA呈极显著正相关(P<0.01),与PUFA呈极显著负相关(P<0.01),与水分呈显著负相关(P<0.05)。肌内脂肪与水分间的相关系数为-0.718,二者间线性模型Y=-0.9985x+75.299,决定系数R^(2)为0.5153。 展开更多
关键词 pic 胴体性状 肉质性状 脂肪酸 氨基酸 相关性分析
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温度对旋风分离器分离性能和流场影响的MP-PIC模拟
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作者 王欢 张红娜 +2 位作者 张一鸣 张永民 吴秀花 《中国石油大学学报(自然科学版)》 北大核心 2025年第5期156-164,共9页
在核工业中经常需要在铀化合物粉料输送、加工和除尘等场景中使用旋风分离器进行气固分离。利用基于MP-PIC模型的商用软件Barracuda模拟温度对旋风分离器分离性能和流场的影响规律,用以评估该方法模拟旋风分离器性能的可行性。结果表明:... 在核工业中经常需要在铀化合物粉料输送、加工和除尘等场景中使用旋风分离器进行气固分离。利用基于MP-PIC模型的商用软件Barracuda模拟温度对旋风分离器分离性能和流场的影响规律,用以评估该方法模拟旋风分离器性能的可行性。结果表明:MP-PIC模型可以模拟进口气速和温度对旋风分离器性能指标的影响趋势,所预测的性能和流场参数的变化规律总体上均与试验结果吻合较好;相比试验结果,MP-PIC模型所预测的旋风分离器旋流强度较弱,主要体现在模拟得到的压降和气体速度均一定程度上低于试验值,这与模拟中采用的大涡湍流模型及较低网格分辨率有关。 展开更多
关键词 旋风分离器 温度 MP-pic 分离性能 流场 模拟
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大气压下均匀场氮气间隙纳秒脉冲放电过程的三维PIC/MCC仿真研究
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作者 王永亮 李俊娜 +3 位作者 史浩良 李好 蒋铭 邱爱慈 《高电压技术》 北大核心 2025年第4期2037-2048,I0025,共13页
为研究几十纳秒脉冲电压下放电参数对气体火花开关间隙放电过程的影响机理,基于场致发射假设,采用三维粒子仿真模型模拟了大气压下均匀场氮气间隙在不同条件下的纳秒脉冲放电通道的形成和发展过程。通过调整脉冲电压上升时间、种子电子... 为研究几十纳秒脉冲电压下放电参数对气体火花开关间隙放电过程的影响机理,基于场致发射假设,采用三维粒子仿真模型模拟了大气压下均匀场氮气间隙在不同条件下的纳秒脉冲放电通道的形成和发展过程。通过调整脉冲电压上升时间、种子电子数密度和场增强因子等参数,研究了放电参数对电子崩和流注形态结构的影响。模拟结果表明:电子崩向阳极发展,流注向阳极和阴极同时发展,流注通道存在明显分叉现象,放电参数不同时,流注通道传播速度和形态结构存在差异;种子电子数密度一定时,脉冲电压上升时间越大,流注通道传播速度越小,分叉现象越严重。脉冲电压上升时间一定时,高种子电子数密度可以促进流注的形成和发展,减弱流注通道的分叉现象;高场增强因子可实现显著的预电离效果,有效促进流注通道的形成和发展,最大程度地减弱流注通道的分叉现象。 展开更多
关键词 纳秒脉冲放电 三维粒子模拟 均匀场氮气间隙 气体火花开关 流注通道分叉
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Scalable synthesis of macroscopic porous carbon sheet anode for potassium-ion capacitor 被引量:2
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作者 Yuying Qin Yuhao Xie +6 位作者 Han Zhao Chunyan Zhu Tong Li Shuxian Zhang Rutao Wang Yuanchang Shi Longwei Yin 《Chinese Chemical Letters》 SCIE CAS CSCD 2022年第3期1463-1467,共5页
Carbon materials hold the great promise for application in energy storage devices owing to their low cost, high thermal/chemical stability, and high electrical conductivity. However, it remains challenging to synthesi... Carbon materials hold the great promise for application in energy storage devices owing to their low cost, high thermal/chemical stability, and high electrical conductivity. However, it remains challenging to synthesize high-performance carbon electrodes in a simple, scalable and sustainable way. Here, we report a facile method for scalable synthesis of porous carbon anode by using cheap and easily accessible zeolitic imidazolate framework-8 as a template and polyvinylpyrrolidone as an additional carbon source. The obtained porous carbon shows the macroscopic sheet-like morphology, which has the highly disordered structure, expanded interlayer spacing, abundant pore structure, and nitrogen doping properties. This porous carbon anode is demonstrated to have the excellent K^(+) charge storage properties in specific capacity, rate capability, and cycling stability. A potassium-ion capacitor assembled by using this porous carbon as the anode, delivers a maximum energy density of 85.12 Wh/kg and power density of 11860 W/kg as well as long cycle life exceeding 3000 cycles. This represents a critical advance in the design of low cost and scalable carbon material for applications in energy storage devices. 展开更多
关键词 Carbon materials ANODE Nitrogen doping Porous carbon Potassium-ion capacitor K+charge storage
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Dynamic responses of series parallel-plate mesoscopic capacitors to time-dependent external voltage
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作者 王锦华 全军 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第11期448-451,共4页
We investigate the dynamic responses of the series parallel-plate mesoscopic capacitors to a time-dependent external voltage. The results indicate that the quantum coherence between two capacitors strongly depends on ... We investigate the dynamic responses of the series parallel-plate mesoscopic capacitors to a time-dependent external voltage. The results indicate that the quantum coherence between two capacitors strongly depends on the frequency of the external voltage and the distance between the two capacitors (c-c distance). The behaviors of the series capacitance incompletely follow the Kirchhoff's laws; only in the low frequency case or the limit of the c-c distance, the capacitance approaches to the classical series capacitance. In addition, the real part of the frequency-dependent capacitance shows a maximum and a minimum, which appear around the peak of the imaginary part. These phenomena may be associated with the plasmon excitation in the mesoscopic capacitors. 展开更多
关键词 electron transport mesoscopic capacitor CAPACITANCE quantum coherence
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机电控制中PIC与仪器仪表的协同作用研究 被引量:2
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作者 丁芳超 《仪器仪表用户》 2025年第2期46-47,50,共3页
本文主要探讨了可编程集成电路(PIC)与仪器仪表在机电控制系统中的协同作用。首先分析了PIC在机电控制中的特点优势,强调其在系统控制与数据处理中的关键角色,然后详细介绍了各类仪器仪表在机电控制系统中的应用,及其不同的功能特点。... 本文主要探讨了可编程集成电路(PIC)与仪器仪表在机电控制系统中的协同作用。首先分析了PIC在机电控制中的特点优势,强调其在系统控制与数据处理中的关键角色,然后详细介绍了各类仪器仪表在机电控制系统中的应用,及其不同的功能特点。最后深入探讨PIC与仪器仪表之间的协同工作机制,包括数据采集与传输、信号处理与控制算法优化,以及系统反馈与实时调整。 展开更多
关键词 机电控制 pic 仪器仪表 协同作用
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等离子体对撞过程的混合流体-PIC数值模拟
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作者 王艺澎 康洞国 +5 位作者 刘庆康 张旭 林伟胜 孟凡琦 罗慧 蔡洪波 《计算物理》 北大核心 2025年第4期407-415,共9页
基于准一维平板内爆模型,利用混合流体-PIC程序ASCENT-H与一维流体力学程序MULTI-IFE,对比研究两团等离子体的对撞过程。混合流体-PIC模拟表明存在显著离子对穿现象,且离子速度分布偏离热平衡状态;延长了动能转化时间,影响对撞过程中的... 基于准一维平板内爆模型,利用混合流体-PIC程序ASCENT-H与一维流体力学程序MULTI-IFE,对比研究两团等离子体的对撞过程。混合流体-PIC模拟表明存在显著离子对穿现象,且离子速度分布偏离热平衡状态;延长了动能转化时间,影响对撞过程中的能量转化和温度分布。相应地,离子温度峰值较流体模拟低、空间分布出现更大展宽。此外,还探讨壳层速度不对称性对等离子体对撞后温度密度状态的影响。本工作深化了对ICF内爆过程和点火热斑形成过程的理解。 展开更多
关键词 内爆减速阶段 对穿效应 混合流体-pic建模
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基于MP-PIC方法模拟分配器型式对MTO装置再生剂短路和稀相颗粒夹带的影响
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作者 白士玉 汪显盼 张永民 《石油炼制与化工》 北大核心 2025年第12期61-66,共6页
针对某工业甲醇制烯烃(MTO)装置中的流化床反应器存在再生剂“短路”及催化剂非正常跑损问题,对该反应器进行了MP-PIC(Multi-Phase Particle-in-Cell)模拟,并结合现场数据进行了分析。结果表明:靠近待生剂出口的再生剂分配器的再生剂更... 针对某工业甲醇制烯烃(MTO)装置中的流化床反应器存在再生剂“短路”及催化剂非正常跑损问题,对该反应器进行了MP-PIC(Multi-Phase Particle-in-Cell)模拟,并结合现场数据进行了分析。结果表明:靠近待生剂出口的再生剂分配器的再生剂更易发生“短路”;安装溢流斗能在一定程度上抑制了再生剂“短路”问题;正常工况下,反应器跑损的催化剂主要是颗粒磨损产生的极小细粉(粒径在10μm以下);反应器与再生器发生非正常跑损的概率分别为18.19%和54.51%,再生器发生非正常跑损的概率远大于反应器,原因在于其密相床层料位较高且旋风分离器的翼阀处于料位面以下。通过模拟,明确了再生剂“短路”的可能性和安装溢流斗的必要性,并对装置催化剂非正常跑损问题提出了改进建议。 展开更多
关键词 甲醇制烯烃 反应器 流化床 颗粒分配器 夹带 MP-pic 模拟
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High-voltage MIM-type aluminum electrolytic capacitors 被引量:1
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作者 Yuan Guo Shixin Wang +5 位作者 Xianfeng Du Xinkuan Zang Zhongshuai Liang Jun Xiong Ruizhi Wang Zhuo Li 《Journal of Energy Chemistry》 2025年第5期79-90,共12页
Metal-insulator-metal aluminium electrolytic capacitors(MIM-AECs)combine high capacity-density and high breakdown field strength of solid AECs with high-frequency responsibility,wide workingtemperature window and wate... Metal-insulator-metal aluminium electrolytic capacitors(MIM-AECs)combine high capacity-density and high breakdown field strength of solid AECs with high-frequency responsibility,wide workingtemperature window and waterproof properties of MIM nanocapacitors.However,interfacial atomic diffusion poses a major obstacle,preventing the high-voltage MIM-AECs exploitation and thereby hampering their potential and advantages in high-power and high-energy-density applications.Here,an innovative high-voltage MIM-AECs were fabricated.The AlPO_(4)buffer layer is formed on AlO(OH)/AAO/Al surface by using H_(3)PO_(4)treatment,then a stable van der Waals(vdW)SnO_(2)/AlPO_(4)/AAO/Al multilayer was constructed via atomic layer deposition(ALD)technology.Due to higher diffusion barrier and lower carrier migration of SnO_(2)/AlPO_(4)/AAO interfaces,Sn atom diffusion is inhibited and carrier acceleration by electric field is weakened,guaranteeing high breakdown field strength of dielectric AAO and avoiding local breakdown risks.Through partial etching to hydrated AlO(OH)by H_(3)PO_(4)treatment,the tunnel was further opened up to facilitate subsequent ALD-SnO_(2)entry,thus obtaining a high SnO_(2)coverage.The SnO_(2)/AlPO_(4)/AAO/Al capacitors show a comprehensive performance in high-voltage(260 V),hightemperature(335℃),high-humidity(100%RH)and high-frequency response(100 k Hz),outperforming commercial solid-state AECs,and high-energy density(8.6μWh/cm^(2)),markedly exceeding previously reported MIM capacitors.The work lays the foundation for next-generation capacitors with highvoltage,high-frequency,high-temperature and high-humidity resistance. 展开更多
关键词 MIM nanocapacitor Electrolytic capacitor Buffer layer Atomic layer deposition High voltage
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结合PIC/S GMP探讨国内原料药生产质量管理策略 被引量:1
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作者 张浩楠 耿革霞 +2 位作者 李丽平 王瑶瑶 李晓鹏 《中国医药工业杂志》 2025年第11期1480-1485,共6页
为进一步推进我国药品检查标准和质量管理体系与国际接轨,文章从整体差异和内容差异2个维度,详细对比了PIC/S GMP指南第二部分与我国现行GMP的异同,深入分析了PIC/S GMP指南第二部分的监管理念与核心要求。通过结合我国当前监管实践,进... 为进一步推进我国药品检查标准和质量管理体系与国际接轨,文章从整体差异和内容差异2个维度,详细对比了PIC/S GMP指南第二部分与我国现行GMP的异同,深入分析了PIC/S GMP指南第二部分的监管理念与核心要求。通过结合我国当前监管实践,进一步探讨了双方在章节分布、适用范围2个关键方面和人员管理、厂房与设施、变更管理、产品上市后监测、生产过程控制5个重点环节的差距,并提出了具体的管理优化策略。期望该文为我国原料药生产企业提升质量管理水平、优化生产质量管理体系、适应未来监管环境的发展趋势提供一定的思路。 展开更多
关键词 GMP pic/S 原料药 生产现场 质量管理
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A review on electrospun carbon-based materials for lithium-ion capacitors
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作者 ZHANG Qian YAO Shu-yu +5 位作者 LI Chen AN Ya-bin SUN Xian-zhong WANG Kai ZHANG Xiong MA Yan-wei 《新型炭材料(中英文)》 北大核心 2025年第4期782-821,共40页
In the context of rapid economic development,the pursuit of sustainable energy solutions has become a major challenge.Lithium-ion capacitors(LICs),which integrate the high energy density of lithium-ion batteries with ... In the context of rapid economic development,the pursuit of sustainable energy solutions has become a major challenge.Lithium-ion capacitors(LICs),which integrate the high energy density of lithium-ion batteries with the high power density of supercapacitors,have emerged as promising candidates.However,challenges such as poor capacity matching and limited energy density still hinder their practical application.Carbon nanofibers(CNFs),with their high specific surface area,excellent electrical conductivity,mechanical flexibility,and strong compatibility with active materials,are regarded as ideal electrode frameworks for LICs.This review summarizes key strategies to improve the electrochemical performance of CNF-based LICs,including structural engineering,heteroatom doping,and hybridization with transition metal oxides.The underlying mechanisms of each approach are discussed in detail,with a focus on their roles in improving capacitance,energy density,and cycling stability.This review aims to provide insights into material design and guide future research toward high-performance LICs for next-generation energy storage applications. 展开更多
关键词 Lithium-ion capacitors Carbon nanofibers ELECTROSPINNING Energy density Power density
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Tuning surface functional groups and crystallinity in activated carbon for high-voltage lithium-ion capacitors
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作者 AN Ya-bin SUN Yu +5 位作者 ZHANG Ke-liang LI Chen SUN Xian-zhong WANG Kai ZHANG Xiong MA Yan-wei 《新型炭材料(中英文)》 北大核心 2025年第5期1085-1097,I0019-I0021,共16页
Lithium-ion capacitors(LICs)combine the high power dens-ity of electrical double-layer capacitors with the high energy density of lithium-ion batteries.However,they face practical limitations due to the narrow operati... Lithium-ion capacitors(LICs)combine the high power dens-ity of electrical double-layer capacitors with the high energy density of lithium-ion batteries.However,they face practical limitations due to the narrow operating voltage window of their activated carbon(AC)cathodes.We report a scalable thermal treatment strategy to develop high-voltage-tolerant AC cathodes.Through controlled thermal treatment of commer-cial activated carbon(Raw-AC)under a H_(2)/Ar atmosphere at 400-800℃,the targeted reduction of degradation-prone functional groups can be achieved while preserving the critical pore structure and increasing graph-itic microcrystalline ordering.The AC treated at 400℃(HAC-400)had a significant increase in specific capacity(96.0 vs.75.1 mAh/g at 0.05 A/g)and better rate capability(61.1 vs.36.1 mAh/g at 5 A/g)in half-cell LICs,along with an 83.5%capacity retention over 7400 cycles within an extended voltage range of 2.0-4.2 V in full-cell LICs.Scalability was demonstrated by a 120 g batch production,enabling fabrication of pouch-type LICs with commercial hard carbon anodes that delivered a higher energy density of 28.3 Wh/kg at 1 C,and a peak power density of 12.1 kW/kg compared to devices using raw AC.This simple,industry-compatible approach may be used for producing ad-vanced cathode materials for practical high-performance LICs. 展开更多
关键词 Activated carbon Lithium-ion capacitors Surface functional groups Microcrystalline domains High-voltage cathod
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一种基于单片机PIC16F873A的水下无人航行器采集记录仪的研究
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作者 张惠文 梁志学 李明 《机械管理开发》 2025年第4期202-204,共3页
介绍了一种基于单片机PIC16F873A的的水下无人航行器采集记录仪的研究,分析了其结构原理,讨论了系统硬件和软件的设计,该采集记录仪通过上位机预置时间数据,记录上电保险机构各触头组上电时间并储存,通过上位机软件读取记录的数据信息,... 介绍了一种基于单片机PIC16F873A的的水下无人航行器采集记录仪的研究,分析了其结构原理,讨论了系统硬件和软件的设计,该采集记录仪通过上位机预置时间数据,记录上电保险机构各触头组上电时间并储存,通过上位机软件读取记录的数据信息,试验后进行数据回放及分析处理提供了方便。该采集记录仪结构紧凑、体积小、轻便、易于实施、研制费用低、周期短、安装方式灵活。 展开更多
关键词 数据采集记录 时钟芯片 pic单片机
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PIC单片机在智能机器人多关节同步控制中的应用
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作者 韩秀霞 《办公自动化》 2025年第8期108-110,共3页
文章提出基于PIC单片机为核心控制单元的多关节同步控制方法。通过深入研究PIC单片机在实时数据处理与精确控制方面的优势,利用其强大的I/O接口和灵活的编程能力,设计一套高效的多关节同步控制系统。该系统能实现对多个关节位置、速度... 文章提出基于PIC单片机为核心控制单元的多关节同步控制方法。通过深入研究PIC单片机在实时数据处理与精确控制方面的优势,利用其强大的I/O接口和灵活的编程能力,设计一套高效的多关节同步控制系统。该系统能实现对多个关节位置、速度及力的实时监测与精确调控,有效解决传统控制方法在同步精度和响应速度上的不足。实验结果分析表明,采用PIC单片机控制的多关节智能机器人在执行复杂动作时,各关节间同步误差显著降低,动作协调性和稳定性得到显著提升。同时,该系统还表现出良好的抗干扰能力和可扩展性,为智能机器人在更广泛领域的应用提供坚实的技术支撑。 展开更多
关键词 pic单片机 智能机器人 多关节 同步控制
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基于PIC单片机的导航智能车传感器控制系统设计
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作者 王晓珊 曹建伟 《内燃机与配件》 2025年第9期44-46,共3页
本文提出并设计了一种基于PIC单片机的智能导航车传感器控制系统,旨在实现自主导航、路径规划、障碍物检测与避障等功能,提供精确的定位和姿态估计,并在路径规划过程中实时计算最优路径,实现路径跟踪和动态避障。该设计以期为智能化驾... 本文提出并设计了一种基于PIC单片机的智能导航车传感器控制系统,旨在实现自主导航、路径规划、障碍物检测与避障等功能,提供精确的定位和姿态估计,并在路径规划过程中实时计算最优路径,实现路径跟踪和动态避障。该设计以期为智能化驾驶环境下车辆导航与定位控制提供全新的解决思路。 展开更多
关键词 pic单片机 车辆导航 PID控制算法
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