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Robust,self-adhesive,and low-contact impedance polyvinyl alcohol/polyacrylamide dual-network hydrogel semidry electrode for biopotential signal acquisition

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SmartMat 2024年第2期5卷 67-82页

作者： Guangli Li ying Liu Yuwei Chen Yonghui Xia Xiaoman Qi Xuan Wan Yuan Jin Jun Liu Quanguo He Kanghua Li Jianxin Tang Hunan Key Laboratory of Biomedical Nanomaterials and Devices College of Life Sciences and ChemistryHunan University of TechnologyZhuzhouChina department of Neurology Zhuzhou People's HospitalZhuzhouChina Zhuzhou Institute for Food and Drug Control ZhuzhouChina

Herein,we fabricated a flexible semidry electrode with excellent mechanical performance,satisfactory self-adhesiveness,and low-contact impedance using physical/chemical crosslinked polyvinyl alcohol/polyacrylamide dual-network hydrogels(PVA/PAM DNHs)as an efficient saline *** resultant PVA/PAM DNHs showed admirable adhesive and compliance to the hairy scalp,facilitating the establishment of a robust electrode/skin interface for biopotential signal ***,the PVA/PAM DNHs steadily released trace saline onto the scalp to achieve the minimized potential drift(1.47±0.39 mV/min)and low electrode–scalp impedance(18.2±8.9 kΩ@10 Hz).More importantly,the application feasibility of real-world brain−computer interfaces(BCIs)was preliminarily validated by 10 participants using two classic BCI *** mean temporal cross-correlation coefficients between the semidry and wet electrodes in the eyes open/closed and the N200 speller paradigms are 0.919±0.054 and 0.912±0.050,*** electrodes demonstrate anticipated neuroelectrophysiological responses with similar *** semidry electrode could also effectively capture robust P-QRS-T peaks during electrocardiogram *** their outstanding advantages of fast setup,user-friendliness,and robust signals,the proposed PVA/PAM DNH-based electrode is a promising alternative to wet electrodes in biopotential signal acquisition.

关键词： brain-computer interface dual-network hydrogel electrocardiogram signals electroencephalography signals semidry electrode

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Compact composition operators on BMOA（B_n）

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science china Mathematics 2009年第12期 2679-2687页

作者： LI Song-ying1,2& LOng SuJuan2 1department of Mathematics,university of California,Irvine,CA 92697,USA 2School of Mathematics and computer science,Fujian Normal university,Fuzhou 350007,china

The paper gives some characterization theorems for the compact composition operator on some function spaces over the unit ball Bn in ***,it gives a characterization for com- pact composition operators on BMOA(Bn),whic... 详细信息

关键词： compactness composition operators BMOA spaces

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Finite Element Simulation for a Micro-machined cantilever Optical Switch

Finite Element Simulation for a Micro-machined cantilever Op...

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Asia-pacific Optical Communications 2004

作者： ying Wanga Mudi Xiong a Tong Li b a College of Information technology Dalian Maritime university Dalian P.R.china 116026 b department of computer science Northwest College for Electric Power Staff Members Xi’an P.R.china 710054

In this paper, the principle of a cantilever-beam micro-mechanical switch with SiO2 optical waveguide on silicon is described, and the solid model of the switch is established and finite element metho

关键词： optical switch finite element method modal analysis MEMS

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多媒体课件开发工具MCAI2.0的设计与实现

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计算机工程与应用 2001年第15期37卷 162-165页

作者：何佳李鹰刘政凯中国科技大学电子工程与信息科学系合肥230027

文章介绍了MCAI1．0的主要功能，总结了用户提出的改进意见，然后在详细分析MCAI1．0的设计思想与工作过程的基础上，提出了MCAI2．0的设计方案。方案采用OOP技术，解决了MCAI1．0程序关联性强、不易扩展的缺点；充分利用Delphi控件功... 详细信息

文章介绍了MCAI1．0的主要功能，总结了用户提出的改进意见，然后在详细分析MCAI1．0的设计思想与工作过程的基础上，提出了MCAI2．0的设计方案。方案采用OOP技术，解决了MCAI1．0程序关联性强、不易扩展的缺点；充分利用Delphi控件功能，解决了JPG图像的显示问题。并且介绍了一些实现中的编程技巧。

关键词：多媒体课件开发工具 Timage控件 Canvas属性设计 MCAI2.0

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Multilocular thymic cysts can be easily misdiagnosed as malignant tumor on computer tomography:A case report

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World Journal of Clinical Cases 2024年第8期12卷 1474-1480页

作者： Jun Sun Qing-Ning Yang Yi Guo Ping Zeng Long-Yan Ma Ling-Wen Kong Bo-ying Zhao Chuan-Ming Li department of Radiology Chongqing University Central HospitalChongqing Emergency Medical CenterChongqing 400014China department of Pathology Chongqing University Central HospitalChongqing Emergency Medical CenterChongqing 400014China department of Cardiothoracic Surgery Chongqing University Central HospitalChongqing Emergency Medical CenterChongqing 400014China

BACKGROUND Multilocular thymic cyst(MTC)is a rare mediastinal lesion which is considered to occur in the process of acquired *** is usually characterized by well-defined cystic density and is filled with transparent *** SUMMARY We report on a 39-year-old male with a cystic-solid mass in the anterior *** tomography(CT)imaging showed that the mass was irregular with unclear *** injection of contrast agent,there was a slight enhancement of stripes and *** to CT findings,it was diagnosed as thymic *** After surgery,MTC accompanied by bleeding and infection was confirmed by pathological *** main lesson of this case was that malignant thymic tumor and MTC of the anterior mediastinum sometimes exhibit similar CT *** is necessary in clinical work to avoid misdiagnosis.

关键词： Multilocular thymic cyst computer tomography Misdiagnosis Hemorrhage Infection Case report

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C/S和B/S模式相结合的ITS数据再获得系统设计与实现

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计算机工程与应用 2004年第35期40卷 208-210页

作者：范莹须德郝雪峰北京交通大学计算机与信息技术学院北京100044

分析了C/S与B/S模式相结合的优越性,讨论了基于该模式下的智能交通系统(ITS)数据再获得系统的设计方案、系统特点以及系统实施过程中的关键技术。

关键词： ITS数据再获得系统 C/S B/S 智能交通系统设计方案

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A Practical SSL Server Performance Improvement Algorithm Based on Batch RSA Decryption

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Journal of Shanghai Jiaotong university(science) 2008年第1期13卷 67-70页

作者：李世群吴永东周建英陈克非 department of computer science and Engineering Shanghai Jiaotong University Institute for Infocomm Research

The secure socket layer/ transport layer security（SSL/TLS） handshake protocol uses public key cryptographic algorithms such as RSA for key establishment. Typically, public key cryptographic algorithm is computational intensive due to the modular multiplications. Therefore, SSL/TLS servers often become swamped while performing public key decryptions when the simultaneous requests increase quickly. A batch RSA decryption algorithm was proposed. The novel algorithm provides the reasonable response time and optimizes server performance significantly. The decryption speedup is proportional to the batch size b, for instance, the speedup factor is 4, while in Shacham＇s scheme the acceleration rate is only 2.5 when b = 4.

关键词： batch decryption secure socket layer (SSL) server public key algorithm

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Efficacy of Chinese Medicine Treatment Based on Syndrome Differentiation for Primary Insomnia:A Randomized Placebo Controlled Triple-Blinded Trial

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Chinese Journal of Integrative Medicine 2024年第10期30卷 867-876页

作者： XIOng Zhi-yi LU ying HE Li-yun ZHAng Run-shun ZHOU Xue-zhong LI Peng LIU Yan-jiao ZHU Jian-gui YAN Shi-yan LIU Bao-yan International Acupuncture and Moxibustion Innovation Institute School of Acupuncture-Moxibustion and TuinaBeijing University of Chinese MedicineBeijing100029China department of Biomedical Data science Stanford University School of MedicineStanfordCA94305USA Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical SciencesBeijing100700China Guang’anmen Hospital China Academy of Chinese Medical SciencesBeijing100053China School of computer and Information technology Beijing Jiaotong UniversityBeijing100044China beij.ng Xicheng District Community Healthcare Center Beijing100120China china Academy of Chinese Medical sciences Beijing100700China

Objective:To assess efficacy of Chinese medicine(CM)on insomnia considering characteristics of treatment based on syndrome ***:A total of 116 participants aged 18 to 65 years with moderate and severe primary insomnia were randomized to the placebo(n=20)or the CM group(n=96)for a 4-week treatment and a 4-week *** CM clinicians independently prescribed treatments for each patient based on syndromes *** primary outcome was change in total sleep time(TST)from *** endpoints included sleep onset latency(SOL),wake time after sleep onset(WASO),sleep efficiency,Pittsburgh Sleep Quality Index(PSQI)and CM ***:The CM group had an average 0.6 h more(95%confidence interval(CI):0.3–0.9,Pnged–3.3(–3.8 to–2.7)in the CM group,a–2.0(–3.2 to–0.8,Pnges were not significantly different between *** analysis of prescriptions by these clinicians revealed blood deficiency and Liver stagnation as the most common *** for these clinicians displayed relative stability,while the herbs *** adverse events were mild and were not related to study ***:CM treatment based on syndrome differentiation can increase TST and improve sleep quality of primary *** is effective and safe for primary *** future studies,the long-term efficacy validation and the exploratory of eutherapeutic clinicians'fixed herb formulas should be addressed.(Registration ***01613183).

关键词： primary insomnia Chinese medicine syndrome differentiation randomized controlled trial

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The effect of 630-nm light stimulation on the sEMG signal of forearm muscle

The effect of 630-nm light stimulation on the sEMG signal of...

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2010亚洲光电子会议保健和生物医学光学分会场

作者： Dan D.Yang 1,W.sheng Hou 1,Xiao Y.Wu 1,Xiao L.Zheng 1,Jun Zheng 2,ying T.Jiang 3 1 Key Laboratory of Biorheological science and technology Chongqing university,Ministry of Education Chongqing 400044,china 2 department of computer science,New Mexico Institute of Mining and technology,Socorro,NM 87801,USA 3 department of Electrical and computer Engineering,university of Nevada,Las Vegas,NV 89154,USA.

This study aimed to explore if the red light irradiation can affect the electrophysiology performance of flexor digitorum superficialis （FDS） and fatigue *** healthy volunteers were randomly divided into two *** the designed force-tracking tasks,all subjects performed the four fingertip isometric force production except thumb with a load of 30% of the maximum voluntary contraction （MVC） force until ***,for the red light group,red light irradiation （640 nm wavelength,0.23J/cm 2,20 min） was used on the right forearm;for the control group,the subjects relaxed without red light *** subjects were required to perform fatigue trail again,and sEMG signal was collected simultaneously from FDS during finger force *** rectified value （ARV） and median frequency （MF） of sEMG were *** to the control group,the red light irradiation induced more smoother value of ARV between 30% and 40%,and the value of MF was obviously large and *** above electrophysiological markers indicated that recovery from muscle fatigue may be positively affected by the red light irradiation,suggesting that sEMG would become a power tool for exploring the effect of red light irradiation on local muscle fatigue.

关键词： red light muscle fatigue sEMG Median frequency

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Distinct immune escape and microenvironment between RG-like and pri-OPC-like glioma revealed by single-cell RNA-seq analysis

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Frontiers of Medicine 2024年第1期18卷 147-168页

作者： Weiwei Xian Mohammad Asad Shuai Wu Zhixin Bai Fengjiao Li Junfeng Lu Gaoyu Zu Erin Brintnell Hong Chen ying Mao Guomin Zhou Bo Liao Jinsong Wu Edwin Wang Linya You department of Human Anatomy&Histoembryology School of Basic Medical SciencesFudan UniversityShanghai200032China Cumming School of Medicine University of CalgaryCalgaryAlbertaT2N 4N1Canada Glioma Surgery Division Department of NeurosurgeryHuashan HospitalFudan UniversityShanghai200040China department of Pathology Huashan HospitalFudan UniversityShanghai200040China department of Neurosurgery Huashan HospitalFudan UniversityShanghai200040China Shanghai Key Laboratory of Medical Imaging Computing and computer Assisted Intervention Fudan UniversityShanghai200040China School of Mathematics and Statistics Hainan Normal UniversityHaikou570100China

The association of neurogenesis and gliogenesis with glioma remains *** conducting single-cell RNA-seq analyses on 26 gliomas,we reported their classification into primitive oligodendrocyte precursor cell(pri-OPC)-like and radial glia(RG)-like tumors and validated it in a public cohort and TCGA *** RG-like tumors exhibited wild-type isocitrate dehydrogenase and tended to carry EGFR mutations,and the pri-OPC-like ones were prone to carrying TP53 *** subclones only in pri-OPC-like tumors showed substantially down-regulated MHC-I genes,suggesting their distinct immune evasion ***,the two subgroups appeared to extensively modulate glioma-infiltrating lymphocytes in distinct *** specific genes not expressed in normal immune cells were found in glioma-infiltrating *** example,glial/glioma stem cell markers OLIG1/PTPRZ1 and B cell-specific receptors IGLC2/IGKC were expressed in pri-OPC-like and RG-like glioma-infiltrating lymphocytes,*** expression was positively correlated with those of immune checkpoint genes(e.g.,LGALS33)and poor survivals as validated by the increased expression of LGALS3 upon IGKC overexpression in Jurkat *** finding indicated a potential inhibitory role in tumor-infiltrating lymphocytes and could provide a new way of cancer immune evasion.

关键词： single-cell RNA-seq glioma radial glia primitive oligodendrocyte precursor cell immune escape

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