检索结果-南通市图书馆

An improved deep multiscale crowd counting network with perspective awareness

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2021年第6期17卷 367-372页

作者： ZHUGE Jingchang DING Ningning xing Shujian YANG xinyu College of Electronic Information and Automation Civil Aviation University of ChinaTianjin 300300China

Crowd counting is a challenging task,which is partly due to the multiscale variation and perspective distortion of crowd *** solve these problems,an improved deep multiscale crowd counting network with perspective awareness was *** network contains two *** branch uses the improved Res Net50 network to extract multiscale features,and the other extracts perspective information using a perspective-aware network formed by fully convolutional *** proposed network structure improves the counting accuracy when the crowd scale changes,and reduce the influence of perspective *** accommodate various crowd scenarios,data-driven approaches are used to fine-tune the trained convolutional neural networks(CNN)model of the target *** extensive experiments on three public datasets demonstrate the validity and reliability of the proposed method.

关键词： network networks neural

在线全文

学校读者我要写书评

暂无评论

制种油菜杂株铲齿式拔除试验台设计与试验

农机化研究 2024年第12期46卷 113-117页

作者：邢钦淞丁素明薛新宇崔龙飞乐飞翔韩焕超农业农村部南京农业机械化研究所南京210014

针对目前人工拔除油菜杂株耗时、费力的情况,设计了一种铲齿式末端执行器,并搭建了试验台,可实现机械化杂株拔除作业。基于PLC的试验台控制系统包含硬件与软件两部分,可通过触摸屏设置作业参数、显示与记录数据,实现自动化杂株拔除作业... 详细信息

针对目前人工拔除油菜杂株耗时、费力的情况,设计了一种铲齿式末端执行器,并搭建了试验台,可实现机械化杂株拔除作业。基于PLC的试验台控制系统包含硬件与软件两部分,可通过触摸屏设置作业参数、显示与记录数据,实现自动化杂株拔除作业。试验表明:试验台配合铲齿式末端执行器能够顺利进行制种油菜杂株机械化、自动化拔除作业,运行可靠且满足制种油菜田农艺要求,控制系统具有操作简单、效率高、使用成本低等优点。

关键词：制种油菜试验台末端执行器控制系统

User Profiling for CSDN:Keyphrase Extraction,User Tagging and User Growth Value Prediction

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Data Intelligence 2019年第2期1卷 137-159页

作者： Guoliang xing Hao Gao Qi Cao xinyu Yue Bingbing Xu Keting Cen Huawei Shen Key Laboratory of Network Data Science and Technology Institute of Computing TechnologyChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

The Chinese Software Developer Network(CSDN)is one of the largest information technology communities and service platforms in *** paper describes the user profiling for CSDN,an evaluation track of SMP Cup *** contains three tasks:(1)user document keyphrase extraction,(2)user tagging and(3)user growth value *** the first task,we treat keyphrase extraction as a classification problem and train a Gradient-Boosting-Decision-Tree model with comprehensive *** the second task,to deal with class imbalance and capture the interdependency between classes,we propose a two-stage framework:(1)for each class,we train a binary classifier to model each class against all of the other classes independently;(2)we feed the output of the trained classifiers into a softmax classifier,tagging each user with multiple *** the third task,we propose a comprehensive architecture to predict user growth *** contributions in this paper are summarized as follows:(1)we extract various types of features to identify the key factors in user value growth;(2)we use the semi-supervised method and the stacking technique to extend labeled data sets and increase the generality of the trained model,resulting in an impressive performance in our *** the competition,we achieved the first place out of 329 teams.

关键词： User profiling Keyphrase extraction User tagging Growth value prediction Word embedding

Preparation and Characterization of Waterborne Polyurethane/Cellulose Nanocrystal Composite Membrane from Recycling Waste Paper

在线全文

学校读者我要写书评

暂无评论

Journal of Renewable Materials 2020年第6期8卷 631-645页

作者： xing Zhou Xin Zhang Dong Wang Changqing Fang Wanqing Lei Zhigang Huang Yonghua Song xinyu He Yingwei Huang Faculty of Printing Packaging Engineering and Digital Media TechnologyXi’an University of TechnologyXi’an710048China School of Materials Science and Mechanical Engineering Beijing Technology and Business UniversityBeijing100048China

Cellulose plays a key role in abundant organic natural materials meeting the increasing demand for green and biocompatible *** highly crystalline nanoscale component of cellulose nanocrystals has recently attracted great attention due to the versatile performance as filler or matrix in producing functional *** this work,we prepared the waterborne polyurethane via a prepolymer process,and obtained cellulose and cellulose nanocrystals from waste paper via a facile acid hydrolysis *** that,the cellulose nanocrystals were assembled into film and mixed with polyurethane to prepare flexible polyurethane/cellulose nanocrystals composite membrane with different soaking *** correlation between the bulk structure and applied properties including thermal resistance and mechanical property was investigated by using Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM),thermogravimetric analysis(TGA),differential scanning calorimetry(DSC)and folding *** structure analysis indicates that cellulose nanocrystals prepared from used paper have a quality similar to that of commercial ***,the cellulose nanocrystals have been mixed with polyurethane *** can significantly benefit to the thermal resistance and mechanical property of the cellulose nanocrystals *** polyurethane/cellulose nanocrystals composite membrane present good flexibility and may hold a significantly potential application as visual and flexible material.

关键词： Cellulose waterborne polyurethane membrane recycling

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

芬兰型先天性肾病综合征1例并文献复习

疑难病杂志 2024年第4期23卷 487-488页

作者：张星林新宇王姣付晓伟张立明山东第二医科大学临床医学院山东潍坊261000 潍坊市人民医院新生儿科

报道1例芬兰型先天性肾病综合征患儿的临床资料,并进行文献复习。

关键词：先天性肾病综合征,芬兰型 NPHS1基因诊断治疗

Top gate engineering of field-effect transistors based on wafer-scale two-dimensional semiconductors

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2022年第11期106卷 243-248页

作者： Jingyi Ma xinyu Chen Yaochen Sheng Ling Tong Xiaojiao Guo Minxing Zhang Chen Luo Lingyi Zong Yin Xia Chuming Sheng Yin Wang Saifei Gou xinyu Wang xing Wu Peng Zhou David Wei Zhang Chenjian Wu Wenzhong Bao State Key Laboratory of ASIC and System School of MicroelectronicsFudan UniversityShanghai200433China In Situ Devices Center Shanghai Key Laboratory of Multidimensional Information ProcessingEast China Normal UniversityShanghai 200241China School of Electronic Information Soochow UniversitySuzhou215006China

The investigation of two-dimensional(2D)materials has advanced into practical device applications,such as cascaded logic ***,incompatible electrical properties and inappropriate logic levels remain enormous *** this work,a doping-free strategy is investigated by top gated(TG)MoS_(2) field-effect transistors(FETs)using various metal gates(Au,Cu,Ag,and Al).These metals with different work functions provide a convenient tuning knob for controlling threshold voltage(V_(th))for MoS_(2) *** instance,the Al electrode can create an extra electron doping(n-doping)behavior in the MoS_(2) TG-FETs due to a dipole effect at the gate-dielectric *** this work,by achieving matched electrical properties for the load transistor and the driver transistor in an inverter circuit,we successfully demonstrate wafer-scale MoS_(2) inverter arrays with an optimized inverter switching threshold voltage(V_(M))of 1.5 V and a DC voltage gain of 27 at a supply voltage(V_(DD))of 3 *** work offers a novel scheme for the fabrication of fully integrated multistage logic circuits based on wafer-scale MoS_(2) film.

关键词： Two-dimensional semiconductor MoS_(2) Top gate Field effect transistor Logic inverter

香蕉-下颌模型在牙周翻瓣术实验教学中的效果评价

在线全文

学校读者我要写书评

暂无评论

中国继续医学教育 2024年第13期16卷 154-159页

作者：傅心宇邢家玮姜鸿张宝平郭曼丽兰州大学口腔医学院甘肃兰州730000 西北民族大学甘肃省口腔疾病研究重点实验室甘肃兰州730030 甘肃省口腔疾病临床医学研究中心甘肃兰州730000 西北民族大学口腔医学院甘肃兰州730030

目的评价香蕉-下颌模型用于牙周翻瓣术实验教学中的效果。方法于2022年4月—5月招募西北民族大学66名四年级本科生,采用随机数表法将其分为单纯使用香蕉模型(B)、单纯使用传统下颌模型(T)和使用香蕉-下颌联合模型(B-T)3组,每组22名。B... 详细信息

目的评价香蕉-下颌模型用于牙周翻瓣术实验教学中的效果。方法于2022年4月—5月招募西北民族大学66名四年级本科生,采用随机数表法将其分为单纯使用香蕉模型(B)、单纯使用传统下颌模型(T)和使用香蕉-下颌联合模型(B-T)3组,每组22名。B组使用香蕉模型作为牙周翻瓣术训练模型;T组使用传统下颌模型作为牙周翻瓣术训练模型;B-T组先使用香蕉模型训练,后使用下颌模型训练。训练时间为2 h。3组均进行牙周翻瓣术临床前模拟训练。每组按顺序进行理论知识教学、第一次理论测试、牙周翻瓣术操作练习、第二次理论测试、操作考核和满意度调查。比较3组实验训练前后的理论测试评分、操作考核评分和满意度。结果3组实验组训练前理论测试成绩比较,差异无统计学意义(P>0.05);B-T组的训练后理论测试成绩[(77.27±15.73)分]高于训练前理论测试[(58.52±17.84)分],差异有统计学意义(P0.05)。操作考核从高到低排名依次是B-T组、T组和B组[(79.66±3.56)分、(76.20±6.31)分、(73.18±3.81)分],差异有统计学意义(P0.05)。结论运用香蕉-下颌模型进行牙周翻瓣术教学,能够提高口腔医学生理论知识和操作技能,为牙周翻瓣术实验教学提供一种可选策略。

关键词：口腔医学教育牙周翻瓣术临床前训练牙周病本科教学实验教学

疼痛科护士对糖尿病周围神经病变延续护理知信行的现况调查

在线全文

学校读者我要写书评

暂无评论

中国护理管理 2024年第2期24卷 272-276页

作者：许丽媛杨心雨沈意娜魏梦娅杜倩蒋杏齐腾歌李哲王钰颖樊碧发中日友好医院疼痛科北京市100029 北京中医药大学护理学院

目的:调查疼痛科护士对糖尿病周围神经病变患者延续护理的知识、态度、行为现状并分析相关因素,为制订患者延续护理计划,提升延续护理服务质量提供依据。方法:采用便利抽样的方法,于2023年7月选取全国各级医院疼痛科护士561名,采用自制... 详细信息

目的:调查疼痛科护士对糖尿病周围神经病变患者延续护理的知识、态度、行为现状并分析相关因素,为制订患者延续护理计划,提升延续护理服务质量提供依据。方法:采用便利抽样的方法,于2023年7月选取全国各级医院疼痛科护士561名,采用自制的糖尿病周围神经病变患者延续护理知信行问卷进行调查。结果:疼痛科护士对糖尿病周围神经病变延续护理知识、态度、行为的得分分别为(42.17±4.17)分、(34.95±4.12)分、(33.68±5.21)分,护士是否接受延续护理培训、科室是否提供延续护理规范、护士提供延续护理频率和跨学科沟通频率对知信行得分有影响(P<0.05)。结论:疼痛科护士对糖尿病周围神经病变延续护理态度积极,但知识和行为水平有待加强,建议制订延续护理规范,加强护士相关培训,以提升临床延续护理质量。

关键词：糖尿病周围神经病变疼痛科延续护理知信行

Service-aware 6G:An intelligent and open network based on the convergence of communication,computing and caching

在线全文

学校读者我要写书评

暂无评论

Digital Communications and Networks 2020年第3期6卷 253-260页

作者： Yiqing Zhou Ling Liu Lu Wang Ning Hui xinyu Cui Jie Wu Yan Peng Yanli Qi Chengwen xing Beijing Key Laboratory of Mobile Computing and Pervasive Device Institute of Computing TechnologyChinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China Beijing Institute of Technology Beijing100081China

With the proliferation of the Internet of Things(IoT),various services are emerging with totally different features and requirements,which cannot be supported by the current fifth generation of mobile cellular networks(5G).The future sixth generation of mobile cellular networks(6G)is expected to have the capability to support new and unknown services with changing ***,in addition to enhancing its capability by 10–100 times compared with 5G,6G should also be intelligent and open to adapt to the ever-changing services in the IoT,which requires a convergence of Communication,Computing and Caching(3C).Based on the analysis of the requirements of new services for 6G,this paper identifies key enabling technologies for an intelligent and open 6G network,all featured with 3C *** technologies cover fundamental and emerging topics,including 3C-based spectrum management,radio channel construction,delay-aware transmission,wireless distributed computing,and network *** the detailed analysis of these 3C-based technologies presented in this paper,we can see that although they are promising to enable an intelligent and open 6G,more efforts are needed to realize the expected 6G network.

关键词： 6G Convergence of 3C Intelligent Open IoT