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Fundamental Research 2022年第1期2卷 123-130页

作者： Ying Zhou Bin Gao Qingtian Zhang Peng Yao Yiwen Geng xinyi Li Wen Sun Meiran Zhao yue xi Jianshi Tang He Qian Huaqiang Wu School of Integrated Circuits(SIC) Beijing Innovation Center for Future Chips(ICFC)Tsingfiua UniversityBeijingChina Beijing National Research Center for Information Science and Technology(BNRist) Tsinghua UniversityBeijingChina

Mathematical morphology operations are widely used in image processing such as defect analysis in semiconductor manufacturing and medical image *** data-intensive applications have high requirements during hardware implementation that are challenging for conventional hardware platforms such as central processing units(CPUs)and graphics processing units(GPUs).Computation-in-memory(CIM)provides a possible solution for highly efficient morphology *** this study,we demonstrate the application of morphology operation with a novel memristor-based auto-detection architecture and demonstrate non-neuromoq)hic computation on a multi-array-based memristor ***-by-pixel logic computations with low parallelism are converted to parallel operations using ***,hardware-implemented computer-integrated manufacturing was used to experimentally demonstrate typical defect detection tasks in integrated circuit(IC)manufacturing and medical image *** addition,we developed a new implementation scheme employing a four-layer network to realize small-object detection with high *** system benchmark based on the hardware measurement results showed significant improvement in the energy efficiency by approximately 358 times and 32 times more than when a CPU and GPU were employed,respectively,exhibiting the advantage of the proposed memristor-based morphology operation.

关键词： Memristor Computation-in-memory Mathematical morphology Defect detection

Evaluation of diffusion weighted imaging of magnetic resonance imaging in small focal hepatic lesions:a quantitative study in 56 cases

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Hepatobiliary & Pancreatic Diseases International 2005年第3期4卷 406-409页

作者： xian-yue Quan, xi-Jie Sun, Zhi-Jian Yu and Ming Tang Imaging Center, Affiliated Zhujiang Hospital of Southern Medical University, Guangzhou 510282, China Imaging Center Affiliated Zhujiang Hospital of Southern Medical University Guangzhou 510282 China. quanxianyue@***

Diffusion-weighted imaging (DWI) as a new technique of magnetic resonance imaging (MRI) is used to detect focal hepatic lesions. This study was designed to evaluate the significance of DWI to differentiate focal hepatic lesions less than 3 cm in diameter by the quantitation of apparent diffusion coefficient (ADC) values. METHODS:DWI using 1.5T MRI scanner unit was performed with a spin-echo single-shot echo planar imaging (EPI) in 56 cases of small focal hepatic lesions, including hepatocellular carcinoma (11), hepatic metastatic tumor (15 ), hepatic cavernous hemangioma (14), and hepatic cyst (16).The ADC values of these lesions were calculated respectively. The ratios of the ADC values of lesion/liver in hepatocellular carcinomas and hepatic metastatic tumors were also estimated. RESULTS:The mean ADC values (mm2/s) were (0.93±0.06) ×10-3 in hepatocellular carcinomas, (1.09±0.18)×10-3 in hepatic metastatic tumors,(1.95±0.38)×10-3 in hepatic cavernous hemangiomas, and (3.18±0.33) ×10-3 in hepatic cysts. The ratios of ADC values of lesion/liver were 0.90±0.06 and 1.15±0.14 in hepatocellular carcinoma and hepatic metastatic tumors respectively, which were significantly different (P<0.05). CONCLUSION:The measurement of ADC values and the ratios of ADC values of lesion/liver are helpful in MR diagnosis and differentiation of focal hepatic lesions.

关键词： quantitative study diffusion-weighted imaging apparent diffusion coefficient magnetic resonance imaging b value

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双轴张应变对锗激光器工作性能的影响

华南理工大学学报（自然科学版） 2017年第7期45卷 120-125页

作者：李希越李斌 xiA Guangrui 华南理工大学电子与信息学院广东广州510640 英属哥伦比亚大学材料工程系

为探索锗激光器的性能优化方案,建立了基于双轴张应变的双异质结法布里-珀罗电激励式边缘发射锗激光器模型.通过该模型讨论了双轴张应变与最优掺杂密度的关系,分析了不同双轴张应变和掺杂条件下阈值电流密度、电光转换效率等激光器参数... 详细信息

为探索锗激光器的性能优化方案,建立了基于双轴张应变的双异质结法布里-珀罗电激励式边缘发射锗激光器模型.通过该模型讨论了双轴张应变与最优掺杂密度的关系,分析了不同双轴张应变和掺杂条件下阈值电流密度、电光转换效率等激光器参数的变化.结果表明:最优掺杂密度随着双轴张应变的增大而减小,过高的掺杂则导致激光器工作性能的下降;在同等掺杂条件下,光增益以及增益的峰值波长会随着双轴张应变的增大而增大;与文献数据相比,在0.8%双轴张应变和对应的最优掺杂密度(8×1019cm-3)下,锗激光器的阈值电流密度降低至文献数据的1/10,电光转换效率提升了约10倍.

关键词：锗激光器双轴张应变最优掺杂密度光增益阈值电流密度电光转换效率

Manage orbital apex lesions via posterior lateral orbitotomy

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Chinese Medical Journal 2012年第19期125卷 3598-3599页

作者： WU xi-yue ZHENG Shu-fa JIANG Chang-zhen WANG Chen-yang KANG De-zhi FU Jin Department of Neurosurgery First Affiliated Hospital FujianMedical University Fuzhou Fujian 350005 China Department of Medical Science Medical College XiamenUniversity Xiamen Fujian 361005 China

As surgical approaches accessing orbital apex carry .significant risk and require strong expertise and skills, it is important for surgeons to share their know-how and to evaluate the surgical interventions they practiced on a number of patients. We retrospectively studied 9 cases of orbital apex lesions which were excised via posterior lateral orbitotomy.

关键词： orbitotomy orbital apex posterior lateral orbitotomy extraorbital approach transorbital approach

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智能车辆在城区交通场景中的多类障碍物识别

重庆大学学报（自然科学版） 2009年第7期32卷 757-761页

作者：杨欣沈志熙黄席樾詹建平重庆大学自动化学院重庆400030

针对智能车辆在城区交通场景中的前向障碍物识别,提出了一种基于集成学习改进的二叉树支持向量机(BT-SVM)的多类分类方法。根据城区交通场景中各类障碍物的出现概率、模式类别差异,设计了适用于智能车辆障碍物识别的BT-SVM树型结构;对... 详细信息

针对智能车辆在城区交通场景中的前向障碍物识别,提出了一种基于集成学习改进的二叉树支持向量机(BT-SVM)的多类分类方法。根据城区交通场景中各类障碍物的出现概率、模式类别差异,设计了适用于智能车辆障碍物识别的BT-SVM树型结构;对每个节点分类器,采用AdaBoost集成学习方法进行改进,有效减少了差错积累误差,提高了分类精度和泛化能力。试验表明该方法能有效地对城区交通场景中6类常规障碍物模式进行实时在线识别。

关键词：智能车辆障碍物识别支持向量机集成学习城区交通场景

Correlation of Helicobacter pylori infection with high-density lipoprotein cholesterol levels and pulse wave conduction velocity

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Clinical Research Communications 2024年第4期7卷 33-38页

作者： yue-xi Li xiao-Qin Liu Yu-Han Luo Qiao-Li Wang Health Management Center Deyang People’s HospitalDeyang 618000China

Background:Helicobacter pylori(HP)is associated with several gastrointestinal diseases,including peptic ulcer diseases and gastric cancer,and non-gastrointestinal diseases such as hypertension and Alzheimer's ***,the relationship between HP and lipid metabolism and atherosclerosis remains *** study aims to investigate the association between *** infection and high-density lipoprotein cholesterol levels and pulse wave conduction ***:This is a report of a cross-sectional study that collected data from 2,827 *** data collected included results of life questionnaires,laboratory tests,13C-urea breath test(13C-UBT),and pulse wave conduction velocity *** on the results of the 13C-UBT test,the subjects were divided into two groups:the HP-uninfected group(HP−)and the HP-infected group(HP+).The study compared the differences in HDL-C levels and brachial-ankle pulse wave velocity(baPWV)between the two ***-way regression analysis was used to identify potential factors affecting HDL-C levels in the study *** regression equations were presented to analyze whether HP infection was an independent risk factor for abnormal HDL-C metabolism in the ***:Univariate analysis demonstrated that high-density lipoprotein cholesterol(HDL-C)levels were significantly lower in the HP+group compared to the HP−group,with a mean difference ofβ=−18.1 mg/dl(95%CI:−19.3 to−17.0,P<0.001).After adjusting for all variables,the HDL-C levels remained lower in the HP+group compared to the HP-group,with a mean difference ofβ=−17.4 mg/dl(95%CI:−18.2 to−16.7,P<0.001).These findings suggest that *** infection is independently associated with abnormal HDL-C ***,brachial-ankle pulse wave velocity(baPWV)was higher in the HP+group than in the HP−group on both *** the right side,the baPWV was 1,713.4±231.4 cm/s in the HP+group compared to 1,542.8±237.5 cm/s in the HP−group(t=−18.30,P<0.001).O

关键词： Helicobacter pylori cholesterol high-density lipoprotein atherosclerosis

基于网络药理学和分子对接技术探讨三黄糖肾康治疗2型糖尿病的分子作用机制

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现代药物与临床 2022年第8期37卷 1702-1709页

作者：刘北奚悦辽宁中医药大学辽宁沈阳110847 锦州医科大学附属第三医院辽宁锦州121001

目的基于网络药理学和分子对接技术探讨三黄糖肾康治疗2型糖尿病(T2DM)的分子作用机制。方法利用TCMSP、SymMap、TCMID和TCM Databases@Taiwan数据库采集三黄糖肾康的有效成分,通过检索文献来补充水蛭的有效成分,在上述数据库及Swiss Ta... 详细信息

目的基于网络药理学和分子对接技术探讨三黄糖肾康治疗2型糖尿病(T2DM)的分子作用机制。方法利用TCMSP、SymMap、TCMID和TCM Databases@Taiwan数据库采集三黄糖肾康的有效成分,通过检索文献来补充水蛭的有效成分,在上述数据库及Swiss Target Prediction数据平台获取对应的靶点。借助GeneCards、OMIM、TTD数据库获取T2DM相关靶点。将药物–疾病共同靶点利用String 11.5和Cytoscape 3.9.0构建蛋白互作网络(PPI)图,筛选出核心靶点,通过DAVID数据库进行基因本体(GO)和京都基因与基因组百科全书(KEGG)分析。利用Autodock tools 1.5.7将PPI网络图前3位靶点和对应的有效成分进行分子对接。结果三黄糖肾康治疗T2DM的有效成分有63个,159个潜在靶点,通过筛选得到STAT3、INS、AKT1等54个核心靶点,槲皮素、小檗碱、木犀草素、大黄酸等58个关键成分。核心靶点主要涉及HIF-1信号通路、PI3K-Akt信号通路、TNF信号通路等115条通路。STAT3与大黄酸、AKT1与槲皮素和木犀草素、INS与小檗碱分子对接良好。结论三黄糖肾康可通过多个靶点、多条通路对2型糖尿病发挥调控作用。

关键词：三黄糖肾康 2型糖尿病网络药理学分子对接木犀草素小檗碱

College English Test in China and It's Washback

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海外英语 2016年第10期 233-234页

作者：张曦月英国利兹大学贵州师范大学

CET is an essential and high-stakes test for all Chinese college students. But dialectically, such a high stakes test also brings some negative washback in students learning and teachers' teaching. So it is necessary for both students and teachers to treat CET in a dialectic way. Teachers could help students to release and students also need to do some self motivation.

关键词： CET test washback

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厌氧/好氧运行方式对颗粒污泥形成的影响

中国环境科学 2013年第7期33卷 1237-1243页

作者：吴昌永周岳溪中国环境科学研究院水污染控制技术研究中心北京100012

序批式反应器(SBR)饱食-饥饿的运行方式对颗粒污泥的形成具有一定的促进作用,为考察该作用的大小,采用小试SBR装置,按照厌氧/好氧(An/O)交替的方式运行,考察了强化饱食-饥饿效应对颗粒污泥形成的影响.研究发现,An/O方式运行的第7d,反应... 详细信息

序批式反应器(SBR)饱食-饥饿的运行方式对颗粒污泥的形成具有一定的促进作用,为考察该作用的大小,采用小试SBR装置,按照厌氧/好氧(An/O)交替的方式运行,考察了强化饱食-饥饿效应对颗粒污泥形成的影响.研究发现,An/O方式运行的第7d,反应器内即有微颗粒出现,30d后该颗粒污泥系统趋于稳定.通过对典型周期内厌氧和好氧末期污泥中胞外聚合物(EPS)的测定分析,发现厌氧末期的胞外多糖(PS)由最初的13mg/g-VSS逐渐上升到后期的55mg/g-VSS,且厌氧饱食阶段的PS含量一直高于好氧饥饿段.在颗粒形成初期,好氧饥饿阶段胞外蛋白质(PN)的平均含量为10mg/g-VSS,大于厌氧饱食段的6mg/g-VSS;而在颗粒成熟阶段,好氧末期PN为13mg/g-VSS,厌氧末段为20mg/g-VSS.在整个颗粒污泥的形成过程中,PS含量一直高于PN.由此可见,PS所具有的黏性作用在颗粒的形成中起到了比较重要的作用.An/O交替的运行方式会对SBR所特有饱食/饥饿效应起到强化作用,刺激微生物分泌大量的EPS,同时筛选出具有厌氧储存有机物能力的微生物,从而促进了颗粒污泥的形成.

关键词： SBR 好氧颗粒污泥饱食饥饿期胞外聚合物

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基于数据回归建模的单目视觉测距算法

计算机工程与应用 2007年第24期43卷 15-18,40页

作者：沈志熙黄席樾重庆大学自动化学院导航与制导实验室重庆400044

提出了一种基于数据回归建模的单目视觉测距算法,其基本思路与现有的"先建模再测距"的顺序思路不同,创新性地提出了"先测距再建模"的逆向思路,首先准确标定出一些距离样本点,然后采用数据回归建模的方法建立测距模型。该方法不用再单独... 详细信息

提出了一种基于数据回归建模的单目视觉测距算法,其基本思路与现有的"先建模再测距"的顺序思路不同,创新性地提出了"先测距再建模"的逆向思路,首先准确标定出一些距离样本点,然后采用数据回归建模的方法建立测距模型。该方法不用再单独考虑成像模型、成像系统误差、透镜畸变等带来的影响,而是在进行回归拟合时隐含地加以解决;同时,该方法不依赖于道路几何约束条件,既可用于高速公路等结构化公路情况,又可用于城区公路等非结构化公路情况。实验表明,该算法思路是有效的,能满足测距的实时性与精确性要求。

关键词：智能汽车单目视觉数据回归测距