检索结果-内蒙古大学图书馆

20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： Li, Chenqi Guo, Jian Guo, Shuxiang Fu, Qiang Tianjin University of Technology Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems Intelligent Robot Laboratory BinshuiXidao Extension 391 Tianjin300384 China Shenzhen Institute of Advanced Biomedical Robot Co. Ltd. No.12 Ganli Sixth Road Jihua Street Longgang District Shenzhen518100 China Key Laboratory of Convergence Medical Engineering Systems and Healthcare Technology The Ministry of Industry and Information Technology School of Life Science Beijing Institute of Technology No.5 Zhongguancun South Street Beijing100081 China

ISBN: (纸本)9798350320831

A path planning method based on a two-layer coordination system is proposed for the compatibility requirement of path planning global optimum and local coordination in a spherical multi-robot system. In the first layer of the algorithm, the global path quality is improved by proposing a nonlinear sine factor and a sparrow search algorithm with improved levy flight strategy to plan the global collision-free optimal path for each robot. In the second layer, a rolling window method is used to determine the possible collision positions of each robot in the system, and a priority-based conflict resolution strategy is proposed to complete the local coordination of the path near the corresponding position. The experimental results show that the path planning method enables the robots to drive along the global optimal path, but still can carry out flexible and orderly local path coordination, which effectively improves the path planning performance of the system. © 2023 IEEE.

关键词： Multipurpose robots

来源：评论

学校读者我要写书评

暂无评论

Single-molecule characterization from the perspective of optics,photonics,and optoelectronics:a review

引用

Advanced Photonics 2024年第6期6卷 34-54页

作者： Qinghua Gao Zhizhuo Zhang Cong Zhao Zexiang Wang Yani Huo Dong Xiang Chuancheng Jia Xuefeng Guo Nankai University College of Electronic Information and Optical EngineeringTianjin Key Laboratory of Micro-Scale Optical Information Science and TechnologyFrontiers Science Center for New Organic MatterInstitute of Modern OpticsCenter of Single-Molecule SciencesTianjinChina Peking University College of Chemistry and Molecular EngineeringNational Biomedical Imaging CenterBeijing National Laboratory for Molecular SciencesBeijingChina

A singlemolecule is the building block of the material world and the smallest independently stable *** single-molecule properties using optical,photonic,and optoelectronic techniques holds great scientific significance in revealing the molecular dynamics,molecular structures,and molecular quantum ***-optical techniques,such as single-molecule photoluminescence and Raman scattering,not only enable a comprehensive analysis of interactions and conformational dynamics through spectral analysis but also provide unparalleled insights into elucidating the intricate structure of single molecules through atomicresolution *** research of photonics based on single-molecule electroluminescence has brought new ideas and limitless possibilities to the design and manufacture of photonic information *** optoelectronics,which leverages photoexcitation to modulate electrical properties,has significant contributions to elucidating charge transport characteristics and optimizing the optoelectronic functions realized by single-molecule ***,the optoelectronic characterization based on the interaction of ultrafast optical pulses with single molecules provides unprecedented opportunities for exploring their dynamic behavior and regulation laws on ultrafast time *** provide a timely and comprehensive overview of the latest significant advancements pertaining to the optical,photonic,and optoelectronic properties of single molecules,thereby presenting a fresh perspective for research across diverse fields,including single-molecule photophysics and photochemistry.

关键词： single molecules nano-optics photonics optoelectronics ultrafast optics

来源：评论

学校读者我要写书评

暂无评论

Controllable shaping of high-index dielectric nanoparticles by exploiting the giant optical force of femtosecond laser pulses

引用

Photonics Research 2024年第2期12卷 282-291页

作者： YUHENG MAO SHUWEN BAI MINGCHENG PANMAI LIDAN ZHOU SHIMEI LIU SHULEI LI HAIYING LIU HAIHUA FAN JUN DAI SHENG LAN Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices School of Information and Optoelectronic Science and EngineeringSouth China Normal UniversityGuangzhou 510006China Shenzhen Institute of Terahertz Technology and Innovation Shenzhen 518102China State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou 510006China School of Optoelectronic Engineering Guangdong Polytechnic Normal UniversityGuangzhou 510665China

Nanoparticles made of different materials usually support optical resonances in the visible to near infrared spectral range,such as the localized surface plasmons observed in metallic nanoparticles and the Mie resonances observed in dielectric *** optical resonances,which are important for practical applications,depend strongly on the morphologies of *** irradiation is a simple but effective way to modify such optical resonances through the change in the morphology of a *** laser-induced shaping of metallic nanoparticles has been successfully demonstrated,it remains a big challenge for dielectric nanoparticles due to their larger Young’s modulus and smaller thermal ***,we proposed and demonstrated a strategy for realizing controllable shaping of high-index dielectric nanoparticles by exploiting the giant optical force induced by femtosecond laser *** was found that both Si and Ge nanoparticles can be lit up by resonantly exciting the optical resonances with femtosecond laser pulses,leading to the luminescence burst when the laser power exceeds a *** addition,the morphologies of Si and Ge nanoparticles can be modified by utilizing the giant absorption force exerted on them and the reduced Young’s modulus at high *** shape transformation from sphere to ellipsoid can be realized by laser irradiation,leading to the blueshifts of the optical *** was found that Si and Ge nanoparticles were generally elongated along the direction parallel to the polarization of the laser *** shaping of Si and Ge can be achieved by deliberately adjusting the excitation wavelength and the laser *** findings are helpful for understanding the giant absorption force of femtosecond laser light and are useful for designing nanoscale photonic devices based on shaped highindex nanoparticles.

关键词： optical polarization dielectric

来源：评论

学校读者我要写书评

暂无评论

Dual-signal readout paper-based wearable biosensor with a 3D origami structure for multiplexed analyte detection in sweat

引用

Microsystems & Nanoengineering 2023年第2期9卷 157-166页

作者： Yuemeng Cheng Shaoqing Feng Qihong Ning Tangan Li Hao Xu Qingwen Sun Daxiang Cui Kan Wang School of Sensing Science and Engineering School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityKey Laboratory of Thin Film and Microfabrication Technology(Ministry of Education)200240 ShanghaiChina Department of Plastic and Reconstructive Surgery Shanghai Ninth People's HospitalShanghai JiaoTong University School of Medicine200011 ShanghaiChina School of Naval Architecture Ocean&Civil EngineeringShanghai Jiao Tong University200240 ShanghaiChina

In this research,we design and implement a small,convenient,and noninvasive paper-based microfluidic sweat sensor that can simultaneously detect multiple key biomarkers in human *** origami structure of the chip includes colorimetric and electrochemical sensing *** colorimetric sensing regions are modified with specific chromogenic reagents to selectively identify glucose,lactate,uric acid,and magnesium ions in sweat,as well as the pH *** regions of electrochemical sensing detect cortisol in sweat by molecular *** entire chip is composed of hydrophilically and hydrophobically treated filter paper,and 3D microfluidic channels are constructed by using folding *** thread-based channels formed after the hydrophilic and hydrophobic modifications are used to control the rate of sweat flow,which in turn can be used to control the sequence of reactions in the differently developing colored regions to ensure that signals of the best color can be captured simultaneously by the colorimetric sensing ***,the results of on-body experiments verify the reliability of the proposed sweat sensor and its potential for the noninvasive identification of a variety of sweat biomarkers.

关键词： Dual structure wear

来源：评论

学校读者我要写书评

暂无评论

Total-Ionizing-Dose Radiation Induced Gate Damage in High Voltage P-GaN Gate HEMTs 35

Total-Ionizing-Dose Radiation Induced Gate Damage in High Vo...

引用

35th International Symposium on Power Semiconductor Devices and ICs, ISPSD 2023

作者： Wang, Zhao Zhou, Xin Wu, Zhonghua Chen, Chen Zhou, Qi Qiao, Ming Li, Zhaoji Zhang, Bo University of Electronic Science and Technology of China State Key Laboratory of Electronic Thin Films and Integrated Devices Chengdu China Shenzhen Institute of Information Technology Shenzhen China Institute of Electronic and Information Engineering of Uestc in Guangdong Dongguan China Shenzhen Institute for Advanced Study University of Electronic Science and Technology of China Shenzhen China

ISBN: (纸本)9798350396829

TID radiation induced damage in metal/p-GaN/AlGaN/GaN gate stack of p-GaN gate HEMTs is studied and the damage mechanisms highly correlated with electric field are revealed. For on-state bias, irradiation damages related to donor-like traps are located at the reverse-biased metal/p-GaN Schottky junction with high electric field. The depletion region in the Schottky junction would extend, and the trap-assisted tunneling mechanism could be introduced to increase the forward gate current. For off-state bias, irradiation damages are located at the reverse-biased p-GaN/AlGaN/GaN (p-i-n) junction in relation to holes trapped in the AlGaN barrier and the GaN channel. The energy barrier of the AlGaN barrier and the GaN channel would be lowered for electron injection, leading to reverse gate current and off-state drain leakage current increasing. Irradiation induced damage at the Schottky junction may be permanent, while the p-i-n junction damage is recoverable with time. © 2023 IEEE.

关键词： High electron mobility transistors

来源：评论

学校读者我要写书评

暂无评论

Multimodal Emotion Recognition Using CNN-SVM with Data Augmentation

Multimodal Emotion Recognition Using CNN-SVM with Data Augme...

引用

2022 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2022

作者： Guo, Gengyuan Gao, Pengzhi Zheng, Xiangwei Ji, Cun Shandong Normal University State Key Laboratory of High-end Server & Storage Technology School of Information Science and Engineering Jinan China

ISBN: (纸本)9781665468190

With the development of human-computer interaction and mobile sensors, emotion recognition based on physiological signals has aroused a lively discussion among scholars. The main difficulty faced is the small amount of data which leads to poor training results. In this paper, we proposed a multimodal emotion recognition using CNN-SVM and data augmentation (CSDAMER). Electrocardiography (ECG), galvanic skin response (GSR) and respiration (RSP) are utilized as input data, which are less requiring on the collection environment and can be collected by mobile sensors. To improve the training effect of model, data augmentation is performed by transformations, such as inversion, recombination and noise injection. Moreover, the convolutional layer of the convolutional neural network (CNN) is leveraged to extract the high-level features of the physiological signals, and then the features are input into the support vector machine (SVM) classifier to obtain the recognition results. The experimental results show that CSDAMER achieves 80.7% and 79.92% accuracy in arousal and valance, respectively. Compared with CNN alone, the accuracy of arousal and valance is increased by 12.87% and 9.95%. Meanwhile, the addition of the data augmentation improves the accuracy in arousal and valance by 21.94% and 25.73%. © 2022 IEEE.

关键词： Emotion Recognition

来源：评论

学校读者我要写书评

暂无评论

Research on Evaluation System of the Judge Quality in Students' Contest Based on Data Driven 3

Research on Evaluation System of the Judge Quality in Studen...

引用

3rd International Conference on Education, Knowledge and information Management, ICEKIM 2022

作者： Zhao, Runhao Guo, Yunxiao Ma, Xiaying Yin, Xinrong Tang, Jiuyang National University of Defense Technology College of Systems Engineering Changsha China National University of Defense Technology College of Liberal Arts and Sciences Changsha China National University of Defense Technology Science and Technology on Information Systems Engineering Laboratory Changsha China

ISBN: (纸本)9781665416665

Students' contest is a vital part of the education process. It can significantly exercise students' ability to innovate and teamwork. In the contest, the high-quality evaluation team is the guarantees fairness and efficiency. The supervision and evaluation of the quality of the judge is the basis of building a high-quality judge team. In this regard, the main research contents of this paper are as follows: Based on data driven, combined with psychology and statistical analysis, three dimensions of evaluation indexes are built by combining qualitative and quantitative methods, and the evaluation model for evaluating judges is built. The accuracy and efficiency of the model are verified by case analysis using the model and data visualization methods. The research results provide valuable help for improving the evaluation quality and efficiency of the judges. © 2022 IEEE.

关键词： Data visualization

来源：评论

学校读者我要写书评

暂无评论

Invasive Spartina alterniflora accelerates the increase in microbial nitrogen fixation over nitrogen removal in coastal wetlands of China

引用

Eco-Environment & Health 2023年第3期2卷 184-192页

作者： Shuntao Chen Dengzhou Gao Xiaofei Li Yuhui Niu Cheng Liu Dongyao Sun Yanling Zheng Hongpo Dong Xia Liang Guoyu Yin Xianbiao Lin Min Liu Lijun Hou State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai 200241China Key Laboratory of Geographic Information Science of the Ministry of Education College of Geographical SciencesEast China Normal UniversityShanghai 200241China Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta Binzhou UniversityBinzhou 256600China School of Geography Science and Geomatics Engineering Suzhou University of Science and TechnologySuzhou 215009China Frontiers Science Center for Deep Ocean Multispheres and Earth System and Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of EducationOcean University of ChinaQingdao 266100China

Salt marsh plants play a vital role in mediating nitrogen(N)biogeochemical cycle in estuarine and coastal ***,the effects of invasive Spartina alterniflora on N fixation and removal,as well as how these two processes balance to determine the N budget,remain ***,simultaneous quantifications of N fixation and removal via^(15)N tracing experiment with native Phragmites australis,invasive ***,and bare flats as well as corresponding functional gene abundance by qPCR were carried out to explore the response of N dynamics to *** *** results showed that N fixation and removal rates ranged from 0.77±0.08 to 16.12±1.13 nmol/(g·h)and from 1.42±0.14 to 16.35±1.10 nmol/(g·h),respectively,and invasive *** generally facilitated the two processes *** on the difference between N removal and fixation rates,net N_(2)fluxes were estimated in the range of-0.39±0.14 to 8.24±2.23 nmol/(g·h).Estimated net N_(2)fluxes in *** stands were lower than those in bare flats and *** stands,indicating that the increase in N removal caused by *** invasion may be more than offset by N fixation *** forest analysis revealed that functional microorganisms were the most important factor associated with the corresponding N transformation ***,our results highlight the importance of N fixation in evaluating N budget of estuarine and coastal wetlands,providing valuable insights into the ecological effect of *** invasion.

关键词： Salt marsh plant N removal N fixation N budget Estuarine and coastal ecosystems

来源：评论

学校读者我要写书评

暂无评论

Organic single-crystal light-emitting transistors with external quantum efficiency over 20%

Aggregate

引用

Aggregate 2023年第4期4卷 122-127页

作者： Jian Deng Zejian Zhang Pengpeng Sang Shujun Yin Shitong Zhang Yuan Li Bing Yang Cheng Gu Yuguang Ma State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSouth China University of TechnologyGuangzhouP.R.China School of Information Science and Engineering Shandong UniversityQingdaoP.R.China State Key Laboratory of Supramolecular Structure and Materials Institute of Theoretical ChemistryCollege of ChemistryJilin UniversityChangchunP.R.China Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of TechnologyGuangzhouP.R.China

Organic light-emitting transistors(OLETs)have attracted increasing attention because of their potential applications in next-generation displays and high-energy operating ***,the simultaneous achievement of high luminescent efficiency and carrier mobility in organic semiconductors remains challenging because the localized excitons are advantageous for light emission,whereas the delocalized carriers are beneficial for efficient charge ***,we report an organic single crystal of a cyano-substituted styrene derivative with balanced mobility yielding a record-high external quantum efficiency of 20.5%in ***-dependent I–V curves and electronic structure analyses based on firstprinciples calculations were performed to disclose the underlying mechanism as a band transport,which provides an efficient way to achieve high quantum efficiency in OLETs.

关键词： organic electronics organic light-emitting transistors single crystals styrene

来源：评论

学校读者我要写书评

暂无评论

engineering upconverting core–shell nano-probe for spectral responsive fluid velocimetry

引用

Nano Research 2023年第1期16卷 1212-1219页

作者： Hai Huang Shaoxiong Wang Runyu Chen Nianfeng Zhang Hu-Rong Yao Yuanhui Zheng Feng Huang Daqin Chen College of Physics and Energy Fujian Normal UniversityFujian Provincial Key Laboratory of Quantum Manipulation and New Energy MaterialsFuzhou 350117China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information Fuzhou 350116China Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering Fuzhou 350117China Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage Fuzhou 350117China College of Chemistry Fuzhou UniversityFuzhou 350116China

Particle velocimetry based on the temporal feature of upconversion luminescent nanocrystals is a newly-raising fluid *** the availability to low flow rate fluid and exempting redundance external calibration(achieving once calibration for all)are highly expected and ***,an engineered core–shell nano-probe,NaYF4:Yb/Ho/Ce@NaGdF4,was proposed,in which the Ce3+ions were utilized to manipulate the upconversion dynamic of Ho3+.Through optimization,a superior sensitive against low-speed flow is achieved,and the external calibrations before each operation can be *** demonstrations were conducted on a fluid circulation system with controllable flow *** fluid velocity was monitored successfully,no matter it is permanent,or cyclically variating(imitating the in vivo arterial blood).Moreover,this velocimetric route is competent in spatial scanning for handling the spatially inhomogeneous velocity *** sensing nanomaterial and fluid velocimetric method exhibit promising application potential in human blood velocimetry,industrial control,or environmental monitoring.

关键词： core-shell nanocrystals upconversion temporal dynamic fluid velocimetry

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：