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From degradation to restoration:Rapid regulation of antisite defects and interface reconstruction for upgrading spent LiFePO4 cathodes 认领 引用
1
作者 Ruihang Su Ran An Pengfei Yan 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第6期868-879,I0021,共12页
The sustainable recycling and regeneration of spent lithium iron phosphate(LiFePO4,LFP)cathodes is crucial for minimizing resource waste and enabling circular utilization of long-life lithium-ion battery materials.... The sustainable recycling and regeneration of spent lithium iron phosphate(LiFePO4,LFP)cathodes is crucial for minimizing resource waste and enabling circular utilization of long-life lithium-ion battery materials.However,most existing recycling strategies primarily emphasize elemental recovery and largely neglect the intrinsic degradation mechanisms that control performance decay in retired LFP cathodes,leading to regenerated products with limited electrochemical performance.Performance deterioration in spent LFP is strongly linked to the accumulation of Fe-Li antisite defects and interfacial instability during extended cycling,which obstruct lithium-ion diffusion pathways,accelerate active lithium loss,and cause kinetic degradation.In this work,a rapid upgrading regeneration strategy based on ultrafast Joule heating is proposed to directly target defect repair and interface reconstruction in spent LFP cathodes.The applied thermal shock efficiently heals Fe-Li antisite defects within the bulk lattice,restoring lithium-ion transport while suppressing excessive phase decomposition.Meanwhile,a composite surface architecture is formed,consisting of a LiF-rich interfacial layer and an outer nitrogen-doped carbon coating,which cooperatively enhances interfacial lithium-ion transport,electronic conductivity,and structural stability during cycling.Density functional theory calculations reveal evident charge redistribution across the reconstructed interface,together with a reduced electronic bandgap and stabilized lattice structure,indicating strong electronic coupling between the surface layers and the LFP bulk.Electrochemical evaluations demonstrate decreased polarization,faster reaction kinetics,and markedly improved cycling stability compared with spent and commercial cathodes.Beyond material restoration,this work establishes a defect-directed regeneration paradigm that links degradation mechanisms with functional upgrading,providing a general strategy for high-value recycling and sustainable reuse of lithium-ion battery cathode materials. 展开更多
关键词 LiFePO4cathodes Antisite defect regulation Direct regeneration Interface reconstruction Ultrafast Joule heating
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API接口资源漏洞分析及访问控制方法研究与实现 认领 引用
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作者 黎鹏 刘智文 +1 位作者 王重杨 廖明亮 《数字通信世界》 2026年第2期47-49,共3页
API数量爆发式增长使安全威胁加剧,针对其开放性与传统防护不足的矛盾,本文提出基于RBAC和API资源树结合的访问控制模型,通过构建资源树、设计五张核心数据表,实现.NET Core权限验证,解决细粒度权限管控问题,防止越权访问。
关键词 API 接口资源 漏洞分析 访问控制 模型实现
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Construction of Ni2P/CoP interface for highly efficient electrolysis of urea-assisted hydrogen production at industrial current densities 认领 引用 被引量：1
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作者 Borong Lu Chunmei Lv +3 位作者 Ying Xie Kai Zhu Ke Ye Xiaojin Li 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2025年第2期163-175,共13页
Interface chemical modulation strategies are considered as promising method to prepare electrocatalysts for the urea oxidation reaction(UOR).However,conventional interface catalysts are generally limited by the inhere... Interface chemical modulation strategies are considered as promising method to prepare electrocatalysts for the urea oxidation reaction(UOR).However,conventional interface catalysts are generally limited by the inherent activity and incompatibility of the individual components themselves,and the irregular charge distribution and slow charge transfer ability between interfaces severely limit the activity of UOR.Therefore,we optimized and designed a Ni2P/CoP interface with modulated surface charge distribution and directed charge transfer to promote UOR activity.Density functional theorycalculations first predict a regular charge transfer from CoP to Ni2P,which creates a built-in electric field between Ni2P and CoP interface.Optimization of the adsorption/desorption process of UOR/HER reaction intermediates leads to the improvement of catalytic activity.Electrochemical impedance spectroscopy and ex situ X-ray photoelectron spectroscopy characterization confirm the unique mechanism of facilitated reaction at the Ni2P/CoP interface.Electrochemical tests further validated the prediction with excellent UOR/HER activities of 1.28 V and 19.7 mV vs.RHE,at 10 mA cm-2,respectively.Furthermore,Ni2P/CoP achieves industrial-grade current densities(500 mA cm−2)at 1.75 V and 1.87 V in the overall urea electrolyzer(UOR||HER)and overall human urine electrolyzer(HUOR||HER),respectively,and demonstrates considerable durability. 展开更多
关键词 Interface chemical strategy Theoretical predictions Advanced interface construction Directed charge transfer Urea oxidation reaction
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Experimental study on mechanical and failure behavior of rock‑concrete interface in coal mine roadway under direct tension 认领 引用
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作者 Weiyue Bao Heping Xie +3 位作者 Tao Zhou Dongya Han Xiaoling Zhao Jianbo Zhu 《International Journal of Coal Science & Technology》 SCIE EI CAS CSCD 2025年第5期164-179,共16页
The rock-concrete interface has a signifcant infuence on the stability of rock-concrete structures in coal mine roadway that are vulnerable to tensile loads.In this study,direct tension tests in combination with laser... The rock-concrete interface has a signifcant infuence on the stability of rock-concrete structures in coal mine roadway that are vulnerable to tensile loads.In this study,direct tension tests in combination with laser scanning and acoustic emission techniques were used to study the infuences of loading angle and strength contrast on tensile behavior of rock-concrete interface.Results show that peak strain and tensile strength of granite-concrete specimens are lower than those of granite and concrete.Acoustic emission(AE)characteristic of the granite-concrete specimens difers from that of concrete and granite.With the loading angle increases,peak strain and tensile strength of the granite-concrete specimens increase,and the failure mode varies from the interfacial tensile failure to mixed tensile failure due to the increased contact area and decreased tensile stress applied on the granite-concrete interface.In addition,the accumulative AE counts of the granite-concrete specimen are also signifcantly afected by the loading angle;in particular,when the loading angle is sufciently large,e.g.,55°,the accumulative AE counts sharply increase twice.Diferent strength contrasts between rock and concrete result in diferent failure characteristics of rock-concrete specimens under direct tensile loads.When tensile strength of rock is lower than that of concrete,failure often occurs in the rock section and the tensile strength and peak strain of the rock-concrete specimen is similar to that of rock.By contrast,when the tensile strength of rock is higher than of the concrete,failure appears at the interface,and rock-concrete interface dominates the tensile properties of rock-concrete specimens.The failure mode is dominated by the coupling efect of loading angle and strength contrast.The fndings in this study are helpful in understanding the mechanical behaviour of rock-concrete structures under direct tension and applicable to the design and reinforcement of rock-concrete structures in coal roadway. 展开更多
关键词 Rock-concrete interface Direct tension Loading angle Strength contrast
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Evolution of the rippled inner-interface-initiated ablative Rayleigh–Taylor instability in laser-ablating high-Z doped targets 认领 引用
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作者 W.Xiong X.H.Yang +6 位作者 Z.H.Chen B.H.Xu Z.Li B.Zeng Y.L.Dong G.B.Zhang Y.Y.Ma 《Matter and Radiation at Extremes》 SCIE EI CAS CSCD 2025年第6期62-74,共13页
In the direct drive inertial confinement fusion(ICF)scheme,a rippled interface between the ablator and the deuterium–tritium ice fuel can feed out and form perturbation seeds for the ablative Rayleigh–Taylor instabi... In the direct drive inertial confinement fusion(ICF)scheme,a rippled interface between the ablator and the deuterium–tritium ice fuel can feed out and form perturbation seeds for the ablative Rayleigh–Taylor instability,with undesirable effects.However,the evolution of this instability remains insufficiently studied,and the effects of high-Z dopant on this instability remain unclear.In this paper,we develop a theoretical model to calculate the feedout seeds and describe this instability.Our theory suggests that the feedout seeds are determined by the ablation pressure and the adiabatic index,while the subsequent growth depends mainly on the ablation velocity.Two-dimensional radiation hydrodynamic simulations confirm our theory.It is shown that targets with high-Z dopant in the outer ablator exhibit more severe feedout seeds,because of their higher ionization compared with undoped targets.The X-ray pre-ablation in high-Z doped targets significantly suppresses subsequent growth,leading to suppression of short-wavelength perturbations.However,for long-wavelength perturbations,this suppression is weakened,resulting in increased instability in high-Z doped targets.The results are helpful for understanding the innerinterface-initiated instability and the influence of high-Z dopant on it,providing valuable insights for target design and instability control in ICF. 展开更多
关键词 ablative Rayleigh Taylor instability perturbation seeds deuterium tritium ice fuel rippled interface calculate feedout seeds ablative rayleigh taylor instabilitywith direct drive inertial confinement high z dopant
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基于人工智能的分布式API调度系统设计 认领 引用 被引量：1
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作者 李强 赵峰 +2 位作者 赵林林 刘茂凯 王誉博 《自动化技术与应用》 2025年第4期34-37,65,共4页
为了缩短分布式API调度系统的调度延时,设计一种新型分布式API调度系统。硬件方面,设计调度监听器和调度显示器。软件方面,根据分布式动态调度要求,搭建分布式API网关服务架构;采用混合编排原理,汇总所有调度任务;选用局部逼近神经网络(... 为了缩短分布式API调度系统的调度延时,设计一种新型分布式API调度系统。硬件方面,设计调度监听器和调度显示器。软件方面,根据分布式动态调度要求,搭建分布式API网关服务架构;采用混合编排原理,汇总所有调度任务;选用局部逼近神经网络(CMAC)完成分布式API调度策略的设计,针对混合编排任务生成调度方案。再结合负载均衡原理,考虑不同API调度接口的负载情况对调度方案进行优化。系统测试结果表明,所提系统在并发调度任务数量低于10000时,调度延时保持在1 s以内,满足了分布式API调度的实时性要求。 展开更多
关键词 人工智能 强化学习 分布式 应用程序接口(API) 任务编排 调度方案
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Enhancing Ransomware Detection with Machine Learning Techniques and Effective API Integration 认领 引用 被引量：1
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作者 Asad Iqbal Mehdi Hussain +3 位作者 Qaiser Riaz Madiha Khalid Rafia Mumtaz Ki-Hyun Jung 《Computers, Materials & Continua》 SCIE EI 2025年第10期1693-1714,共22页
Ransomware,particularly crypto-ransomware,remains a significant cybersecurity challenge,encrypting victim data and demanding a ransom,often leaving the data irretrievable even if payment is made.This study proposes an... Ransomware,particularly crypto-ransomware,remains a significant cybersecurity challenge,encrypting victim data and demanding a ransom,often leaving the data irretrievable even if payment is made.This study proposes an early detection approach to mitigate such threats by identifying ransomware activity before the encryption process begins.The approach employs a two-tiered approach:a signature-based method using hashing techniques to match known threats and a dynamic behavior-based analysis leveraging Cuckoo Sandbox and machine learning algorithms.A critical feature is the integration of the most effective Application Programming Interface call monitoring,which analyzes system-level interactions such as file encryption,key generation,and registry modifications.This enables the detection of both known and zero-day ransomware variants,overcoming limitations of traditional methods.The proposed technique was evaluated using classifiers such as Random Forest,Support Vector Machine,and K-Nearest Neighbors,achieving a detection accuracy of 98%based on 26 key ransomware attributes with an 80:20 training-to-testing ratio and 10-fold cross-validation.By combining minimal feature sets with robust behavioral analysis,the proposed method outperforms existing solutions and addresses current challenges in ransomware detection,thereby enhancing cybersecurity resilience. 展开更多
关键词 Ransomware machine learning malware cyber security malware application program interface(API)malware
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Repetitive interface frictional anisotropy mobilized by sand and snakeskin-inspired surfaces 认领 引用
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作者 Muhammad Naqeeb Nawaz Tae-Young Kim Song-Hun Chong 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2025年第10期6691-6703,共13页
Understanding frictional anisotropy,which refers to the variation in frictional resistance based on the shear direction,is crucial for optimizing the friction angle between a bio-inspired structure and the surrounding... Understanding frictional anisotropy,which refers to the variation in frictional resistance based on the shear direction,is crucial for optimizing the friction angle between a bio-inspired structure and the surrounding soil.Previous studies focused on estimating the interface frictional anisotropy mobilized by snakeskin-inspired textured surfaces and sand under monotonic shear loading conditions.However,there is a need to estimate interface frictional anisotropy under repetitive shear loads.In this study,a series of repetitive direct shear(DS)tests are performed with snakeskin-inspired textured surfaces under a constant vertical stress and two shear directions(cranial first half→caudal second half or caudal first half→cranial second half).The results show that(1)mobilized shear stress increases with the number of shearing cycles,(2)cranial shearing(shearing against the scales)consistently produces a higher shear resistance and less contractive behavior than caudal shearing(shearing along the scales),and(3)a higher scale height or smaller scale length of the surface yields a higher interface friction angle across all shearing cycles.Further analysis reveals that the gap between the cranial and caudal shear zones of the interface friction angle as a function of L/H(i.e.the ratio of scale length L to scale height H)continues to decrease as the number of shearing cycles approaches asymptotic values.The directional frictional resistance(DFR)decreases as the number of shearing cycles increases.Furthermore,the discussion covers the impact of initial relative density,vertical stress,and the number of shearing cycles on interface frictional anisotropy. 展开更多
关键词 Snakeskin-inspired textured surfaces Modified interface direct shear(DS)tests Interface friction angle Directional frictional resistance(DFR) Cranial shearing Caudal shearing
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基于个性化张量分解的高阶互补云API推荐方法 认领 引用
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作者 孙梦梦 刘啸威 +3 位作者 陈文辉 申利民 尤殿龙 陈真 《电子与信息学报》 EI CAS CSCD 北大核心 2025年第8期2859-2871,共13页
在万物互联的云时代,云应用程序编程接口(API)是数字经济建设和服务化软件开发的关键数字基础设施。然而,云API数量的持续增长给用户决策和推广带来挑战,设计有效的推荐方法成为亟待解决的重要问题。现有研究多利用调用偏好、搜索关键... 在万物互联的云时代,云应用程序编程接口(API)是数字经济建设和服务化软件开发的关键数字基础设施。然而,云API数量的持续增长给用户决策和推广带来挑战,设计有效的推荐方法成为亟待解决的重要问题。现有研究多利用调用偏好、搜索关键词或二者结合进行建模,主要解决为给定Mashup推荐合适云API的问题,未考虑开发者对个性化高阶互补云API的实际需求。该文提出一种基于个性化张量分解的高阶互补云API推荐方法(Personalized Tensor Decomposition based High-order Complementary cloud API Recommendation,PTDHCR)。首先,将Mashup与云API之间的调用关系,以及云API与云API之间的互补关系建模为三维张量,并利用RECAL张量分解技术对这两种关系进行共同学习,以挖掘云API之间的个性化非对称互补关系。然后,考虑到不同互补关系对推荐结果的影响程度不同,构建个性化高阶互补感知网络,充分利用Mashup、查询云API以及候选云API的多模态特征,动态计算Mashup对不同查询和候选云API之间互补关系的关注程度。在此基础上,将个性化互补关系拓展到高阶,得到候选云API与查询云API集合的整体个性化互补性。最后,利用两个真实云API数据集进行实验,结果表明,相较于传统方法,PTDHCR在挖掘个性化互补关系和推荐方面具有较大的优势。 展开更多
关键词 面向服务软件开发 云API 高阶互补 张量分解 个性化推荐
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基于RESTful API的前后端分离项目接口测试方法研究 认领 引用 被引量：5
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作者 孙业超 《软件》 2025年第9期116-118,共3页
本文针对前后端分离架构下接口交互复杂性提升问题,提出了基于RESTful API的接口测试方法,构建统一测试框架,设计功能测试、性能测试与安全性测试策略,实现了自动化测试流程管理与数据驱动机制。结合独立实验环境,开展多维度验证分析。... 本文针对前后端分离架构下接口交互复杂性提升问题,提出了基于RESTful API的接口测试方法,构建统一测试框架,设计功能测试、性能测试与安全性测试策略,实现了自动化测试流程管理与数据驱动机制。结合独立实验环境,开展多维度验证分析。研究成果为前后端分离项目接口测试体系建设提供了技术支撑,具备良好应用推广价值。 展开更多
关键词 前后端分离 RESTful API 接口测试 性能验证 安全性分析
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基于RESTful API的医疗信息交互平台开发与应用 认领 引用
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作者 刘卫方 《计算机应用文摘》 2025年第19期147-149,152,共3页
随着互联网技术的迅速发展,医疗行业正逐步实现数字化转型。基于RESTful API的医疗信息交互平台应运而生,旨在促进医疗数据的共享与交换,提升医疗服务的效率和质量。文章探讨了该平台的开发与应用,重点分析了平台架构、API接口设计、安... 随着互联网技术的迅速发展,医疗行业正逐步实现数字化转型。基于RESTful API的医疗信息交互平台应运而生,旨在促进医疗数据的共享与交换,提升医疗服务的效率和质量。文章探讨了该平台的开发与应用,重点分析了平台架构、API接口设计、安全策略及实际应用等方面,旨在为医疗信息交互平台的开发提供理论依据与实践经验,推动医疗行业数字化进程。 展开更多
关键词 RESTful API 医疗信息交互平台 数字化转型 API接口设计
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冻融循环对硫酸盐渍土-混凝土界面剪切特性的影响 认领 引用 被引量：1
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作者 余炜 刘飞禹 +1 位作者 马克超 赵川 《应用基础与工程科学学报》 EI CSCD 北大核心 2026年第1期166-174,共9页
我国西北部季节性盐渍化冻土地区的铁路线路分布范围越来越广,因硫酸盐渍土冻融循环引发的铁路工程病害问题也越来越多.为了研究盐渍土与混凝土界面在冻融循环条件下的强度及变形特性,对不同含盐量(0、1%、2%、3%、4%)的自制硫酸钠盐渍... 我国西北部季节性盐渍化冻土地区的铁路线路分布范围越来越广,因硫酸盐渍土冻融循环引发的铁路工程病害问题也越来越多.为了研究盐渍土与混凝土界面在冻融循环条件下的强度及变形特性,对不同含盐量(0、1%、2%、3%、4%)的自制硫酸钠盐渍粉质黏土与混凝土界面在±20℃下进行了不同次数(1次、3次、6次、10次)的冻融循环试验,以冻结融化各12h为1个循环周期,并在循环结束后开展了20℃恒温条件下的单调直剪试验和扫描电镜试验,从界面的抗剪强度、损伤占比、体变特征和微观结构等方面分析了冻融循环次数和含盐量等因素对盐渍土-混凝土界面剪切特性的影响.研究结果表明:盐渍土-混凝土界面的抗剪强度随冻融循环次数增大而逐渐降低,而其下降程度则随循环次数增大而减小.任意损伤过程中,盐渍土-混凝土界面盐蚀劣化作用效果比冻融劣化作用更明显.界面在含盐量为4%时出现剪胀现象,其余情况均表现为剪缩,并且冻融循环次数越大,剪缩现象越明显.基于扫描电镜试验发现,冻融循环作用会造成界面土颗粒整体性降低,界面土体的孔隙率在冻融循环作用下逐渐增大,冻融循环6次后,孔隙面积变化幅度减小,粒间小孔隙增多,土颗粒分布更均匀. 展开更多
关键词 盐渍土-混凝土界面 直剪试验 冻融循环 含盐量 剪切特性
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手机直连卫星通信组网关键技术研究 认领 引用 被引量：1
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作者 戴翠琴 程白凡 +1 位作者 吴旭帆 孙韶辉 《重庆邮电大学学报（自然科学版）》 CSCD 北大核心 2026年第3期401-414,共14页
随着5G非地面网络标准化的推进以及6G全时全域覆盖通信愿景的提出,手机直连卫星通信作为构建6G星地融合网络的潜在手段之一,不仅能为终端用户提供全球范围的泛在接入,还能支持全时域高速稳定的网络服务。介绍了以3GPP非地面网络协议为... 随着5G非地面网络标准化的推进以及6G全时全域覆盖通信愿景的提出,手机直连卫星通信作为构建6G星地融合网络的潜在手段之一,不仅能为终端用户提供全球范围的泛在接入,还能支持全时域高速稳定的网络服务。介绍了以3GPP非地面网络协议为核心的手机直连卫星通信标准演进历程和未来发展趋势;分析了手机直连卫星通信从卫星透明转发过渡到基站功能上星的网络架构;重点讨论了手机直连卫星通信组网中空口接入、链路自适应以及资源管理等关键技术存在的挑战以及未来的发展方向;总结了文章内容并展望手机直连卫星通信的未来研究方向。 展开更多
关键词 手机直连卫星通信 非地面网络协议 网络架构 空口接入 链路自适应 资源管理
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典型螺栓连接结合面法向动刚度研究 认领 引用
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作者 陈学前 沈展鹏 +1 位作者 杜强 范宣华 《机械设计与制造》 北大核心 2026年第2期42-45,共4页
螺栓连接是工程结构使用最广的一种连接,由于直接测量及计算结合面动刚度存在较大困难,为此,开展了以典型螺栓连接结构为研究对象的螺栓连接结合面动刚度识别研究。第一步,通过正弦振动实验识别得到螺栓连接整体法向刚度;接着,利用相关... 螺栓连接是工程结构使用最广的一种连接,由于直接测量及计算结合面动刚度存在较大困难,为此,开展了以典型螺栓连接结构为研究对象的螺栓连接结合面动刚度识别研究。第一步,通过正弦振动实验识别得到螺栓连接整体法向刚度;接着,利用相关公式计算被连接件法向刚度;最后,利用被连接件法向刚度、结合面法向刚度以及螺栓连接整体法向刚度的串联关系,将螺栓连接结合面动刚度从整体刚度中进行分离,识别得到结合面的法向动刚度。针对典型螺栓连接结构,在正常预紧力矩下螺栓结合面法向动刚度的识别结果约为被连接件法向刚度的1/5。研究结果为螺栓连接结合面法向动刚度确定及螺栓连接动力学建模深入研究提供了新方法。 展开更多
关键词 螺栓连接 结合面 法向 动刚度
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超高性能混凝土与普通混凝土接合面黏结性能试验 认领 引用
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作者 朱张峰 孟浩 《南京工业大学学报（自然科学版）》 CAS 北大核心 2026年第2期256-262,共7页
为研究不同接合面处理方式及接合面粗糙度对超高性能混凝土(UHPC)与普通混凝土(NC)接合面黏结性能的影响,开展了UHPC-NC接合面劈裂抗拉试验和双面直剪试验。试验模拟了NC先浇、UHPC后浇,并考虑了NC表面光面、拉毛、凿毛3种接合面处理方... 为研究不同接合面处理方式及接合面粗糙度对超高性能混凝土(UHPC)与普通混凝土(NC)接合面黏结性能的影响,开展了UHPC-NC接合面劈裂抗拉试验和双面直剪试验。试验模拟了NC先浇、UHPC后浇,并考虑了NC表面光面、拉毛、凿毛3种接合面处理方式及相应的不同粗糙度。结果表明:光面试件为接合面破坏,基体无损伤;拉毛和凿毛试件为UHPC与NC基体破坏。光面试件粗糙度最小,抗拉和抗剪强度均最小,分别为0.50和0.98 MPa;当接合面采用4和6 mm拉毛、4和6 mm凿毛时,其抗拉强度分别提高3.9和5.0倍、0.6和2.7倍,抗剪强度分别提高1.6和2.7倍、0.4和0.7倍。当粗糙度接近时,接合面采用拉毛处理后的抗拉和抗剪强度分别是进行凿毛处理的1.32和1.56倍。因此,施工中建议采用6 mm拉毛工艺进行粗糙化处理。 展开更多
关键词 UHPC-NC接合面 接合面处理 粗糙度 黏结性能 劈裂抗拉试验 双面直剪试验
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界面约束的面波反演方法及其在矿震地表震动评估中的应用 认领 引用
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作者 李成 钱昌宝 +3 位作者 刘影 程怡 倪圣军 姚华建 《煤田地质与勘探》 EI CAS CSCD 北大核心 2026年第3期231-244,共14页
【目的】我国西部矿区下伏界面起伏明显,影响了地震勘探的精度,同时为矿震等动力灾害引发的地表振动评估带来困难。为提升浅层速度结构的刻画能力、支持矿区动力灾害防控,提出了一种融合先验地质界面信息的约束反演方法。【方法】在内... 【目的】我国西部矿区下伏界面起伏明显,影响了地震勘探的精度,同时为矿震等动力灾害引发的地表振动评估带来困难。为提升浅层速度结构的刻画能力、支持矿区动力灾害防控,提出了一种融合先验地质界面信息的约束反演方法。【方法】在内蒙古准格尔旗龙口镇矿区布设由489台单分量和108台三分量地震仪组成的密集台阵,采集连续背景噪声约一个月;基于噪声谱比法(HVSR)反演第四系沉积层(Q4界面)厚度,通过噪声互相关与时频分析提取面波频散曲线;融合Q4界面与煤层界面等先验信息进行约束反演,构建起伏界面下的三维横波速度结构;进一步利用谱元法(SEM3D)开展数值模拟,对比均质模型、无约束模型及界面约束模型的地震波场响应。【结果】界面约束下的面波反演方法使走时残差较无约束反演降低约40%,收敛速度加快,有效抑制了界面起伏引起的路径畸变,提高了浅层速度结构的成像精度。数值模拟显示,沉积层与山间盆地影响地震波能量分布与衰减特征,盆地地形对波场的放大作用强于沉积层。【结论】界面约束反演方法可为起伏界面矿区的浅层速度结构精细建模提供技术途径,并为矿震等地表振动灾害的评估与防治提供方法与模型支持。 展开更多
关键词 背景噪声成像 面波直接反演 界面约束 矿震模拟 地震波场
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首钢京唐炼铁-炼钢界面技术创新与运行实践 认领 引用
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作者 杨春政 刘延强 《钢铁》 EI CAS CSCD 北大核心 2026年第5期20-29,共10页
首钢京唐公司基于冶金流程工程学理论,在炼铁-炼钢界面开发了铁水罐多功能化(俗称“一罐到底”)技术,创新性地解决了450 t级标准轨距铁水罐车设计、优化铁水罐结构设计、建立全流程精准计量系统、实施铁水罐全程智能加盖、200 t/300 t... 首钢京唐公司基于冶金流程工程学理论,在炼铁-炼钢界面开发了铁水罐多功能化(俗称“一罐到底”)技术,创新性地解决了450 t级标准轨距铁水罐车设计、优化铁水罐结构设计、建立全流程精准计量系统、实施铁水罐全程智能加盖、200 t/300 t铁包共用铁水罐车设计等技术难题,并结合近些年界面运行智能化管控,实现了炼铁-炼钢界面物质流、能量流、信息流协同优化运行的新模式。实践结果表明,通过应用炼铁-炼钢界面创新技术,并结合界面管控、工序协同及铁水罐长寿化等措施,实现了铁水罐精准定位,厂房内精度达到1 mm,厂房外精度达到30 mm。铁水罐寿命逐步提高,200 t铁水罐寿命提高45次,300 t铁水罐寿命提高32次。应用全流程精准称量技术,铁水罐-0.5~0.5 t装准率稳定达到98.5%以上。优化炼铁-炼钢界面管控模型,实现炼钢全流程动态有序、高效协同,在途铁量稳定在2000~3000 t,铁水罐周转率不断提高,200 t铁水罐周转次数由4.5次/d提高至7.0次/d,300 t铁水罐周转次数由3.9次/d提高至5.2次/d,铁水过程温降逐步降低,由107℃降低至78℃,达到历史最好水平。界面高效化运行带来铁水进站温度提高,在脱硫剂消耗大幅下降的情况下,脱硫效率提高,KR(Kambara reac⁃tor)结束硫质量分数不超过0.002%的比例稳定达到96%左右。结合钢铁厂的运行实践,指出了炼铁-炼钢界面进一步优化方向,提出了基于超级电容的自驱式铁水运输装备和铁水热量动态调控模型等未来发展新思路,为钢铁企业实现低碳绿色生产提供了重要参考。 展开更多
关键词 炼铁-炼钢界面 一罐到底 智能化管控 铁水罐周转率 铁水温降 脱硫效率 铁水热量动态调控 界面优化方向
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智能座舱中多模态交互模式的效率与集成机制研究 认领 引用
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作者 潘正辉 《武汉职业技术大学学报》 2026年第2期113-120,共8页
随着智能网联技术的深度融合,汽车座舱正加速从功能型驾驶空间向集信息、娱乐与生活服务于一体的“第三生活空间”演进。用户日益期望通过自然语言、手势等多模态交互方式无缝完成跨应用任务,然而生态碎片化与交互模式异构性导致系统集... 随着智能网联技术的深度融合,汽车座舱正加速从功能型驾驶空间向集信息、娱乐与生活服务于一体的“第三生活空间”演进。用户日益期望通过自然语言、手势等多模态交互方式无缝完成跨应用任务,然而生态碎片化与交互模式异构性导致系统集成面临效率与体验的双重挑战。研究系统对比直接应用程序编程接口交互与基于屏幕/对话式用户界面交互两种典型模式,揭示了其在执行效率、生态兼容性、资源开销与安全性方面的互补特性。为解决二者协同问题,提出一种分层交互集成架构,其核心为融合规则引擎与LightGBM机器学习模型的动态决策机制,可实现应用程序编程接口与屏幕/对话式用户界面双路径的智能调度。实验结果表明,该架构在标准化服务中端到端延迟仅增加6.82%,CPU占用率控制在18.73%;在长尾服务中任务成功率提升至91.83%,显著增强系统生态适应性,并为构建高效、安全的新一代智能座舱交互系统提供有效工程方案。 展开更多
关键词 智能座舱 多模态交互 直接接口交互 屏幕交互 集成机制 效能分析
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Phase-field simulation for the evolution of solid/liquid interface front in directional solidification process 认领 引用 被引量：22
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作者 Yuhong Zhao Bing Zhang +2 位作者 Hua Hou Weipeng Chen Meng Wang 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2019年第6期1044-1052,共9页
In this study, the phase field method was used to study the multi-controlling factors of dendrite growth in directional solidification. The effects of temperature gradient, propelling velocity, thermal disturbance and... In this study, the phase field method was used to study the multi-controlling factors of dendrite growth in directional solidification. The effects of temperature gradient, propelling velocity, thermal disturbance and growth orientation angle on the growth morphology of the dendritic growth in the solid/liquid interface were discussed. It is found that the redistribution of solute leads to multilevel cavity and multilevel fusion to form multistage solute segregation, and the increase of temperature gradient and propelling velocity can accelerate the dendrite growth of directional solidification, and also make the second dendrites more developed, which reduces the primary distance and the solute segregation. When the temperature gradient is large, the solid-liquid interface will move forward in a flat interface mode,and the thermal disturbance does not affect the steady state behavior of the directionally solidified dendrite tip. It only promotes the generation and growth of the second dendrites and forms the asymmetric dendrite. Meanwhile, it is found that the inclined dendrite is at a disadvantage in the competitive growth compared to the normal dendrite, and generally it will disappear. When the inclination angle is large, the initial primary dendrite may be eliminated by its secondary or third dendrite. 展开更多
关键词 Phase field method Directional solidification Interface morphology Multi-control factors
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Effects of bolt profile and grout mixture on shearing behaviors of bolt-grout interface 认领 引用 被引量：12
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作者 Chuanqing Zhang Guojian Cui +2 位作者 Xiangrong Chen Hui Zhou Liang Deng 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2020年第2期242-255,共14页
Shearing behavior and failure mechanism of bolt-grout interface are of great significance for load transfer capacity and design of rock bolting system.In this paper,direct shear tests on bolt-grout interfaces under co... Shearing behavior and failure mechanism of bolt-grout interface are of great significance for load transfer capacity and design of rock bolting system.In this paper,direct shear tests on bolt-grout interfaces under constant normal load(CNL) conditions were conducted to investigate the effects of bolt profile(i.e.rib spacing and rib height) and grout mixture on the bolt-grout interface in terms of mechanical behaviors and failure modes.Test results showed that the peak shear strength and the deformation capacity of the bolt-grout interface are highly dependent on the bolt profile and grout mixture,suggesting that bolt performances can be optimized,which were unfortunately ignored in the previous studies.A new interface failure mode,i.e.'sheared-crush' mode,was proposed,which was characterized by progressive crush failure of the grout asperities between steel ribs during shearing.It was shown that the interface failure mode mainly depends on the normal stress level and rib spacing,compared with the rib height and grout mixture for the range of tested parameters in this study. 展开更多
关键词 Bolt-grout interface Direct shear test Shear behavior Failure mode Bolt profiles
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