期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到13篇文章
< 1 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Rotation friction extrusion process towards high-performance Mg-Li matrix composites enhanced by FeCoNiCrCu high entropy alloy 认领 引用
1
作者 Yuqing MAO Jinkai WANG +5 位作者 Qing HUANG Tengfei DU Shaopeng LIU Zhiwei QIN Xiao SONG Liming KE 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2026年第4期668-679,共12页
To pursue wide applications of Mg-Li alloys in aerospace field,bringing in reinforcement phases reasonably and manufacturing efficiently have become paramount.Herein,a novel rotation friction extrusion process was pro... To pursue wide applications of Mg-Li alloys in aerospace field,bringing in reinforcement phases reasonably and manufacturing efficiently have become paramount.Herein,a novel rotation friction extrusion process was proposed to fabricate Fe Co Ni Cr Cu high entropy alloy reinforced Mg-Li matrix composites,which were enhanced by newly formed nano-sized Al Cu Mg phase particles.The grain size of Mg-Li matrix composites was 4.19μm.Meanwhile,a 69.03 nm thickness amorphous layer was obtained,which was composed of amorphous and nanocrystalline structure.The maximum tensile strength reached 201.3 MPa,which was improved by 43.9%compared with LAZ933 Mg-Li alloy.It can be attributed to fine grain strengthening and dispersion strengthening,which resulted from dynamic recrystallization in Mg-Li alloy and Cu segregation from the interior of high entropy alloy.This work shows a novel processing and original reinforcement phase,providing a peculiar way to fabricate Mg-Li matrix composites. 展开更多
关键词 High entropy alloy Mechanical properties Mg-Li matrix composites Rotation friction extrusion Strengthening mechanism
暂未订购 下载PDF
Achieving high-performance FSLW AZ31B/TC4 dissimilar joints with ultrastrong interface by Sn addition 认领 引用 被引量：5
2
作者 Yuqing Mao Jinkai Wang +3 位作者 Shaopeng Liu Qianqun Peng Jingxuan Li Liming Ke 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2025年第4期1799-1814,共16页
Friction stir lap welding(FSLW)was adopted to join successfully dissimilar AZ31B Mg alloy and TC4 Ti alloy with Sn foil addition of 30μm thickness.Interfacial microstructure,tensile shear performances and bonding mec... Friction stir lap welding(FSLW)was adopted to join successfully dissimilar AZ31B Mg alloy and TC4 Ti alloy with Sn foil addition of 30μm thickness.Interfacial microstructure,tensile shear performances and bonding mechanism of the joints obtained using three different rotation speeds were studied.High-performance FSLW Mg/Ti dissimilar joints with maximum tensile shear strength of 593.3 N/mm were produced at 1180 r/min,and which was mainly attributed to ultrastrong reaction interlayer consisting of 125.9 nm thick(Mg2Sn+Mg)transition layer and discontinuous(Ti6Sn5+Ti3Al)IMCs layer with 6.58 nm thickness at the interface.The formation of the reaction interlayer was beneficial for high interfacial strength,resulting in significantly improving the joint strength.The fracture of all FSLW joints located on AZ31B Mg stirred zone adjacent to(Mg2Sn+Mg)transition layer or along the crack propagation direction of the AZ31B/TC4 interface with different fracture mechanisms,and which could be consistent with interfacial microstructure. 展开更多
关键词 Dissimilar AZ31B/TC4 ally Friction stir lap welding Sn addition Tensile shear strength Interfacial microstructure Bonding mechanism
暂未订购 下载PDF
Towards understanding and prediction of corrosion degradation of organic coatings under tropical marine atmospheric environment via a data-driven approach 认领 引用 被引量：1
3
作者 Shaopeng Liu Lingwei Ma +5 位作者 Jinke Wang Yiran Li Haiyan Gong Haitao Ren Xiaogang Li Dawei Zhang 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2025年第5期1151-1161,共11页
The corrosion degradation of organic coatings in tropical marine atmospheric environments results in substantial economic losses across various industries.The complexity of a dynamic environment,combined with high cos... The corrosion degradation of organic coatings in tropical marine atmospheric environments results in substantial economic losses across various industries.The complexity of a dynamic environment,combined with high costs,extended experimental periods,and limited data,places a limit on the comprehension of this process.This study addresses this challenge by investigating the corrosion de-gradation of damaged organic coatings in a tropical marine environment using an atmospheric corrosion monitoring sensor and a random forest(RF)model.For damage simulation,a polyurethane coating applied to a Fe/graphite corrosion sensor was intentionally scratched and exposed to the marine atmosphere for over one year.Pearson correlation analysis was performed for the collection and filtering of en-vironmental and corrosion current data.According to the RF model,the following specific conditions contributed to accelerated degrada-tion:relative humidity(RH)above 80%and temperatures below 22.5℃,with the risk increasing significantly when RH exceeded 90%.High RH and temperature exhibited a cumulative effect on coating degradation.A high risk of corrosion occurred in the nighttime.The RF model was also used to predict the coating degradation process using environmental data as input parameters,with the accuracy show-ing improvement when the duration of influential environmental ranges was considered. 展开更多
关键词 organic coating degradation atmospheric corrosion machine learning exposure test random forest coating sensor
暂未订购 下载PDF
Degradation of Mg-Zn-Y-Nd alloy intestinal stent and its effect on the growth of intestinal endothelial tissue in rabbit model 认领 引用 被引量：4
4
作者 Zongbin Sun Zhanhui Wang +4 位作者 Shaokang Guan Shijie Zhu Tinghe Duan Qiuxia Zheng Shaopeng Liu 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2022年第8期2208-2219,共12页
Biodegradable magnesium alloys have excellent properties with respect to biodegradability, biocompatibility, and biomechanics, which may indicate a possibility of its application in intestinal stents. Investigation of... Biodegradable magnesium alloys have excellent properties with respect to biodegradability, biocompatibility, and biomechanics, which may indicate a possibility of its application in intestinal stents. Investigation of Mg-Zn-Y-Nd alloy’s application in intestinal stents has been performed. This study aims to investigate the degradation behavior of Mg-Zn-Y-Nd alloy intestinal stents coated with poly(L-lactide)/paclitaxel in the intestinal environment and its biocompatibility with intestinal tissue. In this paper, Mg-Zn-Y-Nd alloy’s corrosion properties were evaluated by the immersion test in human feces, SEM and XRD, and animal tests. In vitro results showed that when the Mg-Zn-Y-Nd alloy was immersed in human feces for two weeks, its corrosion resistance could be improved by micro arc oxidation(MAO) and poly-l-lactide(PLLA) dual coating. Additionally, this result was also confirmed in vivo experiments by rabbit model. And animal tests also demonstrated that the Mg-Zn-Y-Nd alloy with MAO/PLLA/paclitaxel dual coating drug-eluting stents could inhibit the proliferation of local intestinal tissue around the stents. However, in vivo studies illustrated that the intestinal stents gradually degraded in rabbit model within 12 days.Considering the degradation rate of the stent was faster than expected in rabbits, the support performance of the scaffold requires further improvement. 展开更多
关键词 Mg alloys Degradability Intestinal stent Poly(L-lactide)/paclitaxel coating
暂未订购 下载PDF
Optimal Concentration of the Bubble Drainage Agent in Foam Drainage Gas Recovery Applications 认领 引用 被引量：1
5
作者 Shaopeng Liu Guowei Wang +4 位作者 Pengfei Liu Dong Ye Jian Song Xing Liu Yang Cheng 《Fluid Dynamics & Materials Processing》 EI 2023年第12期3045-3058,共14页
Foam drainage is theflow of liquid through the interstitial spaces between bubbles driven by capillarity and grav-ity and resisted by viscous damping.The so-called foam drainage gas recovery technology is a technique ... Foam drainage is theflow of liquid through the interstitial spaces between bubbles driven by capillarity and grav-ity and resisted by viscous damping.The so-called foam drainage gas recovery technology is a technique tradi-tionally used to mitigate the serious bottom-hole liquid loading in the middle and late stages of gas well production.In this context,determining the optimal concentration of the bubble drainage agent is generally cru-cial for the proper application of this method.In this study,a combination of indoor experiments and theoretical analysis have been used to determine the pressure drop related to the foam-carrying capacity in a representative gasfield.Dynamic and static experiments were designed with a bubble drainage agent concentration varying in the range 0.3%–0.6%.Using thefield formation water data,the optimal soaking agent concentration was obtained and pressure drop test experiments on the foam carrying capacity were conducted accordingly.These tests have revealed that the optimal foam displacement agent concentration is 0.5%,and the foam quality at the optimum concentration is between 0.78–0.98.A theoretical method for calculating the pressure drop at the optimum soak-away concentration based on experimental data has also been introduced.The error of the proposed method is within 15%compared to the experimental measured value,demonstrating that it is highly accurate and simple. 展开更多
关键词 Bubble row pressure drop foam quality liquid carrying capacity flow pattern
暂未订购 下载PDF
基于宽频振动的燃气轮机叶片断裂故障识别特征与辨识方法 认领 引用 被引量：5
6
作者 胡明辉 刘少朋 +3 位作者 王浩 李晨阳 王维民 江志农 《航空学报》 EI CAS CSCD 北大核心 2024年第20期311-328,共18页
针对燃气轮机动叶片断裂故障难以及时、有效告警与识别的技术难关开展了研究。从叶片断裂故障机理出发,分析了不平衡转子对尾流压力的调制作用,建立了叶片激振力模型和激振力作用下机匣的强迫振动响应模型,求解了动叶片断裂激励下的宽... 针对燃气轮机动叶片断裂故障难以及时、有效告警与识别的技术难关开展了研究。从叶片断裂故障机理出发,分析了不平衡转子对尾流压力的调制作用,建立了叶片激振力模型和激振力作用下机匣的强迫振动响应模型,求解了动叶片断裂激励下的宽频振动响应规律。在此基础上,构建了叶片断裂故障敏感特征并提出了基于改进K近邻(OKNN)的故障告警模型,实现叶片断裂故障的及时告警分析。进一步提出了叶片断裂故障定位参数,通过各级叶片特征参数的对比实现断裂故障的精准定位。综合以上研究,构建了宽频振动特征驱动的燃气轮机叶片断裂故障辨识方法,并通过某型燃气轮机实测案例验证了故障敏感特征及辨识方法的有效性。 展开更多
关键词 燃气轮机 叶片断裂 故障诊断 机匣振动 O-KNN
暂未订购 下载PDF
Multi-Sensor Ensemble Classifier for Activity Recognition 认领 引用
7
作者 Lingfei Mo Shaopeng Liu +1 位作者 Robert X. Gao Patty S. Freedson 《Journal of Software Engineering and Applications》 2012年第12期113-116,共4页
This paper presents a multi-sensor ensemble classifier (MSEC) for physical activity (PA) pattern recognition of human subjects. The MSEC, developed for a wearable multi-sensor integrate measurement system (IMS),combin... This paper presents a multi-sensor ensemble classifier (MSEC) for physical activity (PA) pattern recognition of human subjects. The MSEC, developed for a wearable multi-sensor integrate measurement system (IMS),combines multiple classifiers based on different sensor feature sets to improve the accuracy of PA type identification.Experimental evaluation of 56 subjects has shown that the MSECis more effectivein assessing activities of varying intensitiesthan the traditional homogeneous classifiers. It is able to correctly recognize 6 PA types with an accuracy of 93.50%, which is 7% higher than the non-ensemble support vector machine method. Furthermore, the MSECis effective in reducing the subject-to-subject variabilityin activity recognition. 展开更多
关键词 Physical Activity Assessment Multi-Sensor Ensemble Support Vector Machine
暂未订购 下载PDF
Standardized Cultivation Technology of Maize Jinhai 5 认领 引用
8
作者 Lizhi YU Xiufeng DENG +2 位作者 Shaopeng LIU Dongwei WANG Yunfei MA 《Agricultural Biotechnology》 2020年第6期62-63,82,共2页
It is very important to adopt standardized production technology in the process of maize cultivation,which is conducive to giving full play to the high-yield,high-quality and multi-resistant characteristics of Jinhai ... It is very important to adopt standardized production technology in the process of maize cultivation,which is conducive to giving full play to the high-yield,high-quality and multi-resistant characteristics of Jinhai 5.This paper standardized the cultivation technology of Jinhai 5 from the aspects of maize seed quality,fertilization before sowing,sowing,seedling management,mid-period management,later management,disease and pest control,and harvesting,so as to provide reference for the standardized production of maize Jinhai 5. 展开更多
关键词 Jinhai 5 Maize Standardized cultivation
暂未订购 下载PDF
An artificial intelligence and blockchain technology-based data management framework for multicenter randomized controlled trials 认领 引用 被引量：2
9
作者 Dongyuan Yun Xiaohang Wu +29 位作者 Xi Chen Yahan Yang Yuanjun Shang Shaopeng Liu Dinesh Visva Gunasekeran Duoru Lin Lixue Liu Lanqin Zhao Wenben Chen Jingjing Chen Ling Jin Yuxuan Wu Jiaming Hong Weiling Hu Zhenzhe Lin Carol Y.Cheung Xiang Chen Peichen Xie Zhenzhen Liu Changhai Ding Patrick Yu-Wai-Man Keming Yu Daniel Shu Wei Ting Yizhi Liu Zibin Zheng Gansen Zhao Zhihua Xia Tien Yin Wong Haotian Lin Advanced Technologies Improve Clinical TrialGroup 《Science Bulletin》 SCIE EI CAS CSCD 2025年第6期856-860,共5页
Randomized controlled trials(RCTs)provide optimal evidence of the effectiveness and safety of a new drug,a new medical device,or a new therapeutic strategy with the necessary scientific design[1].Traditional electroni... Randomized controlled trials(RCTs)provide optimal evidence of the effectiveness and safety of a new drug,a new medical device,or a new therapeutic strategy with the necessary scientific design[1].Traditional electronic data collection(EDC)systems for clinical trials primarily focus on data entry,validation,and compliance monitoring.However,their reliance on centralized architectures introduces vulnerabilities in data security and integrity。 展开更多
关键词 Artificial Intelligence Multicenter Randomized Controlled Trials Data Security scientific design traditional Blockchain Technology clinical trials randomized controlled trials rcts provide centralized architectures
暂未订购 下载PDF
A deep Q-learning network based active object detection model with a novel training algorithm for service robots 认领 引用 被引量：7
10
作者 Shaopeng LIU Guohui TIAN +1 位作者 Yongcheng CUI Xuyang SHAO 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2022年第11期1673-1683,共11页
This paper focuses on the problem of active object detection(AOD).AOD is important for service robots to complete tasks in the family environment,and leads robots to approach the target ob ject by taking appropriate m... This paper focuses on the problem of active object detection(AOD).AOD is important for service robots to complete tasks in the family environment,and leads robots to approach the target ob ject by taking appropriate moving actions.Most of the current AOD methods are based on reinforcement learning with low training efficiency and testing accuracy.Therefore,an AOD model based on a deep Q-learning network(DQN)with a novel training algorithm is proposed in this paper.The DQN model is designed to fit the Q-values of various actions,and includes state space,feature extraction,and a multilayer perceptron.In contrast to existing research,a novel training algorithm based on memory is designed for the proposed DQN model to improve training efficiency and testing accuracy.In addition,a method of generating the end state is presented to judge when to stop the AOD task during the training process.Sufficient comparison experiments and ablation studies are performed based on an AOD dataset,proving that the presented method has better performance than the comparable methods and that the proposed training algorithm is more effective than the raw training algorithm. 展开更多
关键词 Active object detection Deep Q-learning network Training method Service robots
暂未订购 下载PDF
Regulation of rheumatoid arthritis microenvironment via a self-healing injectable hydrogel for improved inflammation elimination and bone repair 认领 引用 被引量：5
11
作者 Wenbo Geng Jie Zhao +8 位作者 Bailong Tao Yulu Yang Qiaojian Duan Pengfei Gao Tingting He Shaopeng Liu Qian Feng Peng Zhao Kaiyong Cai 《Bioactive Materials》 SCIE CSCD 2024年第6期287-300,共14页
The rheumatoid arthritis(RA)microenvironment is often followed by a vicious circle of high inflammation,endogenous gas levels imbalance,and poor treatment.To break the circle,we develop a dual-gas-mediated injectable ... The rheumatoid arthritis(RA)microenvironment is often followed by a vicious circle of high inflammation,endogenous gas levels imbalance,and poor treatment.To break the circle,we develop a dual-gas-mediated injectable hydrogel for modulating the immune microenvironment of RA and simultaneously releasing therapeutic drugs.The hydrogel(DNRS gel)could be broken down on-demand by consuming excessive nitric oxide(NO)and releasing therapeutic hydrogen sulfide(H2S),resulting in endogenous gas restoration,inflammation alleviation,and macrophage polarization to M2 type.Additionally,the hydrogel could suppress osteoclastogenesis and enhance osteogenesis.Furthermore,the intra-articularly injected hydrogel with methotrexate(MTX/DNRS gel)significantly alleviated inflammation and clinical symptoms and promoted the repair of bone erosion in the collagen-induced arthritis rat model.As a result,in vivo results demonstrated that MTX/DNRS gel restored the microenvironment and improved the therapeutic effect of MTX.This study provides a novel understanding of developing versatile smart delivery platforms for RA treatment. 展开更多
关键词 Microenvironment Hydrogels Rheumatoid arthritis Nitric oxide Hydrogen sulfide
AIAP: A Quality Control and Integrative Analysis Package to Improve ATAC-seq Data Analysis 认领 引用 被引量：2
12
作者 Shaopeng Liu Daofeng Li +5 位作者 Cheng Lyu Paul MGontarz Benpeng Miao Pamela A.F.Madden Ting Wang Bo Zhang 《Genomics, Proteomics & Bioinformatics》 SCIE CAS CSCD 2021年第4期641-651,共11页
Assay for transposase-accessible chromatin with high-throughput sequencing(ATAC-seq) is a technique widely used to investigate genome-wide chromatin accessibility. The recently published Omni-ATAC-seq protocol substan... Assay for transposase-accessible chromatin with high-throughput sequencing(ATAC-seq) is a technique widely used to investigate genome-wide chromatin accessibility. The recently published Omni-ATAC-seq protocol substantially improves the signaloise ratio and reduces the input cell number. High-quality data are critical to ensure accurate analysis.Several tools have been developed for assessing sequencing quality and insertion size distribution for ATAC-seq data;however, key quality control(QC) metrics have not yet been established to accurately determine the quality of ATAC-seq data. Here, we optimized the analysis strategy for ATAC-seq and defined a series of QC metrics for ATAC-seq data,including reads under peak ratio(RUPr), background(BG), promoter enrichment(Pro En), subsampling enrichment(Sub En), and other measurements. We incorporated these QC tests into our recently developed ATAC-seq Integrative Analysis Package(AIAP) to provide a complete ATAC-seq analysis system, including quality assurance, improved peak calling, and downstream differential analysis. We demonstrated a significant improvement of sensitivity(20%–60%) in both peak calling and differential analysis by processing paired-end ATAC-seq datasets using AIAP. AIAP is compiled into Docker/Singularity, and it can be executed by one command line to generate a comprehensive QC report. We used ENCODE ATAC-seq data to benchmark and generate QC recommendations, and developed q ATACViewer for the userfriendly interaction with the QC report. The software, source code, and documentation of AIAP are freely available at http://gffzz188fe103f8f1460as6ucbxw9wcfuf6bcw.ffgz.tsg.suse.edu.cn/Zhang-lab/ATAC-seq_QC_analysis. 展开更多
关键词 ATAC-seq Quality control Chromatin accessibility Differential analysis Data visualization
Electrical manipulation of lightwaves in the uniaxially strained photonic honeycomb lattices under a pseudomagnetic field 认领 引用 被引量：1
13
作者 ZHIPENG QI HAO SUN +7 位作者 GUOHUA HU CHUNYU DENG WANGHUA ZHU BO LIU YING LI SHAOPENG LIU XUECHAO YU YINPING CUI 《Photonics Research》 SCIE EI CAS CSCD 2023年第7期1294-1302,共9页
The realization of pseudomagnetic fields for lightwaves has attained great attention in the field of nanophotonics.Like real magnetic fields,Landau quantization could be induced by pseudomagnetic fields in the straine... The realization of pseudomagnetic fields for lightwaves has attained great attention in the field of nanophotonics.Like real magnetic fields,Landau quantization could be induced by pseudomagnetic fields in the strainengineered graphene.We demonstrated that pseudomagnetic fields can also be introduced to photonic crystals by exerting a linear parabolic deformation onto the honeycomb lattices,giving rise to degenerate energy states and flat plateaus in the photonic band structures.We successfully inspire the photonic snake modes corresponding to the helical state in the synthetic magnetic heterostructure by adopting a microdisk for the unidirectional coupling.By integrating heat electrodes,we can further electrically manipulate the photonic density of states for the uniaxially strained photonic crystal.This offers an unprecedented opportunity to obtain on-chip robust optical transports under the electrical tunable pseudomagnetic fields,opening the possibility to design Si-based functional topological photonic devices. 展开更多
关键词 magnetic strained field
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈