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Clinical study of anesthetization by dezocine combined with propofol for indolent colonoscopy

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World Journal of Gastroenterology 2016年第24期22卷 5609-5615页

作者： Bin-Bin Xu xiao-liang zhao Gui-ping Xu Department of Endoscopy Center People’s Hospital of Xinjiang Uygur Autonomous Region

AIM: To assess the use of dezocine combined with propofol for the anesthetization of patients undergoing indolent ***: A cross-sectional survey of patients undergoing indolent colonoscopy in the Xinjiang people's Hospital was conducted from April 1 to April 30, 2015. The survey collected patient general information and anesthesia data, including overall medical experience and pain management. Thirty minutes after colonoscopy surgery, samples of venous blood were collected and the biochemical indicators of gastrointestinal function were analyzed. RESULTS: There were 98 female and 62 male respondents. Indolent colonoscopy was found to be more suitable for mid to older-aged patients. The necessary conditions for the diagnosis of digestive diseases were required in 65 of the 73 inpatients. Adverse reactions to the intraoperative process included two cases of body movement and two cases of respiratory depression. Gastrin and vasoactive intestinal peptide levels were slightly increased. However, somatostatin and endothelin levels were slightly decreased. CONCLUSION: This study revealed that dezocine combined with propofol can be successfully used for the anesthetization of indolent colonoscopy patients without pain and should be widely used.

关键词： Dezocine propofol Colonoscopy patient assessment Anesthetization Cross-sectional

Intraneuronal accumulation of Aβ42 induces age-dependent slowing of neuronal transmission in Drosophila

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Neuroscience Bulletin 2014年第2期30卷 185-190页

作者： Jing-Ya Lin Wen-An Wang xiao Zhang Hai-Yan Liu xiao-liang zhao Fu-De Huang Department of Neurology Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Center for Stem Cell and Nanomedicine Laboratory for System Biology Shanghai Advanced Research Institute Chinese Academy of Sciences Department of Neurology Xin Hua Hospital Affiliated to Shanghai Jiaotong University School of Medicine Chongming Branch Institute of Neuroscience and State Key Laboratory of Neuroscience Shanghai Institutes for Biological Sciences Chinese Academy of Sciences

Beta amyloid （Aβ42）-induced dysfunction and loss of synapses are believed to be major underlying mechanisms for the progressive loss of learning and memory abilities in Alzheimer＇s disease （AD）. The vast majority of investigations on AD-related synaptic impairment focus on synaptic plasticity, especially the decline of long-term potentiation of synaptic transmission caused by extracellular Aβ42. Changes in other aspects of synaptic and neuronal functions are less studied or undiscovered. Here, we report that intraneuronal accumulation of Aβ42 induced an age- dependent slowing of neuronal transmission along pathways involving multiple synapses.

关键词： neuronal transmission synaptic dysfunction latency Alzheimer's disease intraneuronal betaamyloid

Study on the Formation Mechanism of the Solid Siliconized Layer on TJ-48A1 Alloy

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材料热处理学报 2004年第5期 681-683页

作者： MA xiao-xia, liang Wei, zhao Xing-guo, SHI Ju-yan, BIAN Li-ping School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

The microstructures of the siliconized specimens of Ti-48Al alloy were analyzed by SEM equipped with XEDS. The specimens were pack siliconized with the two different cementations, 15%Si+85% A12O3 and 15%Si+85%ZrO2. The results show that a composite siliconized layer is formed on the surface of the TiAl alloy. The outer layer is the continuous A12O3 where a lot of Si particles adhered; the inner layer is most of Ti5Si3 with amount of ALjOs particles dispersed in. It was deduced that the A12O3 in the cementation layer is formed by the Al atoms in the TiAl substrate react with the residual O in the furnace and in the TiAl substrate.

关键词： Ti-48Al alloy chemical heat-treatment siliconization microstructure

Radiofrequency catheter ablation of idiopathic ventricular tachycardia and symptomatic premature ventricular contraction originating from valve annulus

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Chinese Medical Journal 2008年第22期121卷 2241-2245页

作者： WU xiao-yu liang zhao-guang TAN Zhen GU Hong-yue ZHANG Shu LI Wei-min Department of Cardiology First Affiliated Hospital of Harbin Medical University Harbin Heilongjiangl50001 China

Background Radiofrequency catheter ablation （RFCA） has been established as an effective and curative therapy for ventricular tachycardia （VT） and severely symptomatic premature ventricular contraction （PVC） from the outflow tract in structurally normal hearts. This study aimed to investigate electrophysiologic characteristics and effects of RFCA for patients with idiopathic VT and symptomatic PVC originating from the valve annulus. Methods Characteristics of body surface electrocardiogram （ECG） and endocardiogram in a successful RFCA target were analyzed in 16 patients with idiopathic VT and symptomatic PVC originating from the valve annulus. Additionally, the ECG characteristics of VT or PVC were compared with those of manifest Wolff-Parkinson-White （WPW） syndrome originating from the same site of origin in 15 patients. Results Thirteen patients were successful, 2 recurrent and 1 failed. The recurrent cases underwent successful ablation the second time guided by the Ensite 3000 mapping system. In all patients with the WPW syndrome, the characteristics of QRS morphology were well matched with those of the VT and PVC that originated from corresponding sites of origin. Conclusions RFCA is an effective curative therapy for VT and There are specific characteristics in ECG and the ablation site accessory pathway＇s algorithm. symptomatic PVC originating from the valve annulus. could be located by means of the WPW syndrome

关键词： ventricular tachycardia valve annulus radiofrequency catheter ablation

CRC-AIDED TURBO EQUALIZATION FOR MIMO FREQUENCY SELECTIVE FADING CHANNELS

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Journal of Electronics(China) 2007年第1期24卷 69-74页

作者： Liu Zhanli liang xiao zhao Chunming Wang Jing National Mobile Commun. Research Lab. Southeast Univ. Nanjing i10096 China SEUCOMM Corporation Ltd Nanjing 2100P6 China

This paper presents a CRC (Cyclic Redundancy Check)-aided turbo equalization approach to reduce the computational complexity. In this approach,CRC code bits are padded to the end of each transmit block,and a cyclic redundancy check is performed after decoding each block at the receiver end. If the check sum is zero,which means the receive block is correct,the corresponding LLRs (Log Likelihood Ratios) of this block are set high reliable values,and all the computations corresponding to this block can be cancelled for the subsequent outer iterations. With a lower computational complexity the proposed approach can achieve the same as or even better performance than the conventional non-CRC method.

关键词： Cyclic Redundancy Check (CRC) Turbo equalization Multi-Input Multi-Output (MIMO)

A promising approach for quantifying focal stroke modeling and assessing stroke progression:optical resolution photoacoustic microscopy photothrombosis

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Neural Regeneration Research 2025年第7期20卷 2029-2037页

作者： xiao liang Xingping Quan xiaorui Geng Yujing Huang Yonghua zhao Lei Xi Zhen Yuan Ping Wang Bin Liu Faculty of Health Sciences University of MacaoMacao Special Administrative RegionChina Center for Cognitive and Brain Sciences University of MacaoMacao Special Administrative RegionChina Department of Biomedical Engineering Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoTaipaMacao Special Administrative RegionChina Department of Emergency Zhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong ProvinceChina

To investigate the mechanisms underlying the onset and progression of ischemic stroke,some methods have been proposed that can simultaneously monitor and create embolisms in the animal cerebral ***,these methods often require complex systems and the effect of age on cerebral embolism has not been adequately studied,although ischemic stroke is strongly *** this study,we propose an optical-resolution photoacoustic microscopy-based visualized photothrombosis methodology to create and monitor ischemic stroke in mice simultaneously using a 532 nm pulsed *** observed the molding process in mice of different ages and presented age-dependent vascular embolism ***,we integrated optical coherence tomography angiography to investigate age-associated trends in cerebrovascular variability following a *** imaging data and quantitative analyses underscore the differential cerebrovascular responses to stroke in mice of different ages,thereby highlighting the technique's potential for evaluating cerebrovascular health and unraveling age-related mechanisms involved in ischemic strokes.

关键词： age-dependent cerebral cortex ischemic stroke mouse model optical coherence tomography angiography photoacoustic microscopy photothrombosis vascular imaging

液态二氧化碳冷却切削系统的研制与DT4切削中的应用

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工具技术 2017年第6期51卷 20-25页

作者：肖虎李亮赵威南京航空航天大学

DT4工业纯铁是一种碳含量极低的铁基合金,由于其具有磁感应强度高、磁导率高、造价低廉等优点,在电磁领域和航空等工业中得到广泛应用。但DT4纯铁类材料的韧性和延展性较高造成其加工性能差,难以保证加工质量,故针对DT4加工精度低、粗... 详细信息

DT4工业纯铁是一种碳含量极低的铁基合金,由于其具有磁感应强度高、磁导率高、造价低廉等优点,在电磁领域和航空等工业中得到广泛应用。但DT4纯铁类材料的韧性和延展性较高造成其加工性能差,难以保证加工质量,故针对DT4加工精度低、粗糙度差的问题,采用低温强压二氧化碳作为冷却剂替代品的方法,进行了液态二氧化碳在强压喷射条件下的DT4纯铁材料的切削试验,分析了液态二氧化碳在强压喷射条件下对工业纯铁DT4加工的影响以及PCD刀具材料在干冰低温切削中的磨损抑制原因。试验结果表明,本文提出的液态二氧化碳喷射平台切实有效,而PCD刀具在此前提下能极大提升DT4表面质量并降低切削力。该方法在DT4的精密薄壁车削方面具有可观的应用价值前景。

关键词：车削液态二氧化碳 DT4工业纯铁

移动端到移动端3D MIMO宽带信道建模与仿真

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北京邮电大学学报 2017年第4期40卷 91-97页

作者：梁晓林赵雄文李树王琦河北大学电子信息工程学院河北保定071002 华北电力大学电气与电子工程学院北京102206

提出了一种基于几何的适用于宽带多输入多输出(MIMO)移动端到移动端无线信道的随机散射模型.假设有效散射体位于三维(3D)双柱体的表面,将已有的窄带模型扩展到宽带并且把载频和带宽引入模型中,利用仿真实现信道,通过实现的信道矩阵进一... 详细信息

提出了一种基于几何的适用于宽带多输入多输出(MIMO)移动端到移动端无线信道的随机散射模型.假设有效散射体位于三维(3D)双柱体的表面,将已有的窄带模型扩展到宽带并且把载频和带宽引入模型中,利用仿真实现信道,通过实现的信道矩阵进一步开展信道特征和参数研究,与现有的解析方法相比更加简单直接.通过对3D双柱体和二维双环散射模型的比较发现,3D模型对应的功率延迟分布的归一化功率和均方根时延扩展比二维的小,3D信道容量有一定的提升.

关键词：基于几何的随机散射模型宽带信道移动端到移动端多输入多输出

固定瓦-可倾瓦微气体轴承-转子系统的非线性运动分析

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振动与冲击 2017年第11期36卷 65-72,85页

作者：张永芳吕烨迪肖良君赵晶群刘成西安理工大学印刷包装与数字媒体学院西安710048 西安交通大学机械结构强度与振动国家重点实验室西安710049

针对固定瓦-可倾瓦微气体轴承,考虑气体稀薄效应,给出了具有Burgdorfer一阶滑移速度边界的Reynolds方程,运用微分变换法结合有限差分法求解方程,得到了各瓦块在单块瓦坐标系中的非线性气膜力,然后通过组装技术获得了固定瓦-可倾瓦微气... 详细信息

针对固定瓦-可倾瓦微气体轴承,考虑气体稀薄效应,给出了具有Burgdorfer一阶滑移速度边界的Reynolds方程,运用微分变换法结合有限差分法求解方程,得到了各瓦块在单块瓦坐标系中的非线性气膜力,然后通过组装技术获得了固定瓦-可倾瓦微气体轴承的气膜力。针对固定瓦-可倾瓦微气体轴承支撑的刚性Jeffcott转子系统,运用转子中心轨迹图、Poincaré映射图和时间历程图分析了转子的不平衡响应,比较了努森数、转速等对转子系统非线性特性的影响。数值结果表明:稀薄效应对转子中心的运动轨迹有较大影响,转子系统的不平衡响应表现为周期一运动、周期三运动和周期四运动。

关键词：微气体轴承固定瓦-可倾瓦转子系统非线性