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Whole Body Positron Emission Tomography/Computed Tomography （PET/CT） in the Evaluation of Ophthalmic Tumors

Current Medical Science 2018年第2期38卷 310-317页

作者： Ping JIANG shan-shan liao Xiao-li LAN Fa-gang JIANG Department of Ophthalmology Union Hospital Tongii Medical College Huazhong University of Science and Technology Wuhan 430022 China Department of Nuclear Medicine and PET Center Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China

The clinical value of whole body positron emission tomography/computed tomography （PET/CT） as an imaging tool in diagnosis of ophthalmic tumors was investigated. The retrospective observational case series were performed on the patients with suspected ophthalmic tumors who underwent whole body PET/CT. The golden standard of diagnosis was the final pathological diagnosis or the results of long-term follow-up for patients without surgery/ biopsy. PET/CT findings were compared with the golden standard. The sensitivity, specificity, accuracy an^t positive likelihood ratio of PET/CT in the detection of ophthalmic tumors were calculated. The clinical application of PET/CT in different types of ophthalmic tumors was evaluated. The results showed that 30 patients （18 males and 12 females） with a mean age of 43.0 years （range 4-63 years） were collected. The mean sizes of orbital tumors and intraocular tumors were 26.8 mmxl7.8 mm and 11.2 minx6.1 mm, respectively. The overall sensitivity, specificity, accuracy and positive likelihood ratio of whole body PET/CT in ophthalmic tumors were 76.5%, 71.4%, 75.0% and 2.67, and were 62.5%, 100% and 70.0% in intraocular tumors, and those were 100%, 60.0% and 84.6% in orbital tumors, respectively. PET/CT findings were applied to help make appropriate treatment options in 27 out of 30 patients （90.0%）, and 12 （40.0%） patients changed the treatment strategy. False negative results in 4 cases and false positive results in 2 cases were observed in this series. It was suggested that PET/CT was an effective imaging modality in detecting, diagnosing and developing therapeutic schedule for patients with ophthalmic tumors. It was more sensitive and accurate for detecting orbital tumors than for detecting intraocular tumors.

关键词： positron emission tomography/computed tomography ophthalmic tumor orbital tumor ocular tumor

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Process analysis of characteristics of the boundary layer during a heavy haze pollution episode in an inland megacity,China

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Journal of Environmental Sciences 2016年第2期28卷 138-144页

作者： shan Wang Tingting liao Lili Wang Yang Sun Xi'an Meteorological Bureau Xi'an 710016 China Plateau Atmospheric and Environment Key Laboratory of Sichuan Province College of Atmosphere Sciences Chengdu University of Information Technology Chengdu 610225 China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC) Institute of Atmospheric PhysicsChinese Academy of Sciences Beijing 100191 China

Ground observation data from 8 meteorological stations in Xi＇an, air mass concentration data from 13 environmental quality monitoring sites in Xi＇an, as well as radiosonde observation and wind profile radar data, were used in this study. Thereby, the process,causes and boundary layer meteorological characteristics of a heavy haze episode occurring from 16 to 25 December 2013 in Xi＇an were analyzed. Principal component analysis showed that this haze pollution was mainly caused by the high-intensity emission and formation of gaseous pollutants（NO_2, CO and SO_2） and atmospheric particles（PM_（2.5）（fine particles） and PM10（respirable suspended particle）. The second cause was the relative humidity and continuous low temperature. The third cause was the allocation of the surface pressure field. The presence of a near-surface temperature inversion at the boundary layer formed favorable stratification conditions for the formation and maintenance of heavy haze pollution. The persistent thick haze layer weakened the solar radiation. Meanwhile, a warming effect in the urban canopy layer and in the transition zone from the urban friction sublayer to the urban canopy was indicated. All these conditions facilitated the maintenance and reinforcement of temperature inversion. The stable atmospheric stratification finally acted on the wind field in the boundary layer, and further weakened the exchange capacity of vertical turbulence. The superposition of a wind field with the horizontal gentle wind induced the typical air stagnation and finally caused the deterioration of air quality during this haze event.

关键词： Haze Temperature inversion Radiation Air stagnancy

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Facile Fabrication of Fe3O4@TiO2@C Yolk–Shell Spheres as Anode Material for Lithium Ion Batteries

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Transactions of Tianjin University 2020年第1期26卷 3-12页

作者： Wenming liao Zhongqiang shan Jianhua Tian School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China School of Chemistry and Chemical Engineering Jinggangshan UniversityJiangxi 343009China

Transition metal oxides have been actively exploited for application in lithium ion batteries due to their facile synthesis,high specific capacity,and *** this paper,Fe3O4@TiO2@C yolk-shell(Y-S)spheres,used as anode material for lithium ion batteries,were successfully fabricated by Stober *** patterns reveal that Fe3O4@TiO2@C Y-S spheres possess a good *** the diffraction peaks’intensity of Fe3O4 crystals in the composites is much weaker than that of bare Fe3O4 spheres,indicating that the outer anatase TiO2@C layer can cover up the diffraction peaks of inner Fe3O4 *** yolk-shell structure of Fe3O4@TiO2@C spheres is further characterized by TEM,HAADFSTEM,and EDS *** yolk-shell structure is good for improving the cycling stability of the inner Fe3O4 spheres during lithium ions insertion-extraction *** tested at 200 mA/g,the Fe3O4@TiO2@C Y-S spheres can provide a stable discharge capacity of 450 mAh/g over 100 cycles,which is much better than that of bare Fe3O4 spheres and TiO2@C ***,cyclic voltammetry curves show that the composites have a good cycling stability compared to bare Fe3O4 spheres.

关键词： Fe3O4@TiO2@C yolk-shell spheres Cycle performance Lithium ion batteries Anode material

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Strengthening effect of super typhoon Rammasun(2014)on upwelling and cold eddies in the South China Sea

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Journal of Oceanology and Limnology 2021年第2期39卷 403-419页

作者： Xue LI Xiaolong ZHANG Dongyang FU shan liao Guangdong Ocean Remote Sensing and Information Engineering Technology Research Center Guangdong Ocean UniversityZhanjiang 524088China State Key Laboratory of Marine Environmental Science College of Ocean and Earth SciencesXiamen UniversityXiamen 361102China Marine Resources Big Data Center of South China Sea Southern Marine Science and Engineering Guangdong LaboratoryZhanjiang 524088China Meteorological Bureau Yan’an 716000China School of Cybersecurity Sichuan UniversityChengdu 610065China

Typhoon is one of the frequent natural disasters in coastal regions of *** shown in many studies,the impact of typhoons on the South China Sea(SCS)should not be *** typhoon Rammasun(2014)was studied that formed in the northwestern Pacific,passed through the SCS,then landed in the Leizhou *** sensing data and model products were used to analyze the spatiotemporal variations of the cold eddies,upwelling,sea surface temperature,mixed layer depth,rainfall,sea surface salinity,suspended sediment concentration,and surface-level *** confirm the constant presence of upwelling and cold eddies in the southeast of Hainan(north of the Zhongsha Islands)and the southeast of Vietnam in *** addition,we found the strengthening effect of super typhoon Rammasun on the upwelling and cold eddies in the *** major reasons for the continuous decrease in sea surface temperature and the slow regaining of seawater temperature were the enhanced upwelling and vertical mixing caused by the *** increasing of the surface runoff in the Indochina Peninsula was mainly affected by the typhoon,with some contribution for the southeast of Vietnam’s cold eddy and upwelling.

关键词： cold eddies sea surface temperature(SST) South China Sea(SCS) typhoon Rammasun upwelling

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A Numerical Model for Simulating Two-Phase Flow with Adaptive Mesh Refinement

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Computer Modeling in Engineering & Sciences 2021年第7期128卷 43-64页

作者： Yunxing Zhang shan Ma Kangping liao Wenyang Duan Harbin Engineering University Harbin150001China

In this study,a numerical model for simulating two-phase flow is *** Cartesian grid with Adaptive Mesh Refinement(AMR)is adopted to reduce the computational *** explicit projection method is used for the time integration and the Finite Difference Method(FDM)is applied on a staggered grid for the discretization of spatial *** Volume of Fluid(VOF)method with Piecewise-Linear Interface Calculation(PLIC)is extended to the AMR grid to capture the gas-water interface accurately.A coarse-fine interface treatment method is developed to preserve the flux conservation at the *** two-dimensional(2D)and three-dimensional(3D)benchmark cases are carried out for the validation of the model.2D and 3D shear flow tests are conducted to validate the extension of the VOF method to the AMR grid.A 2D linear sloshing case is considered in which the model is proved to have 2nd-order accuracy in *** efficiency of applying the AMR grid is discussed with a nonlinear sloshing ***,2D solitary wave past stage and 2D/3D dam break are simulated to demonstrate that the model is able to simulate violent interface problems.

关键词： Two-phase flow adaptive mesh refinement VOF coarse-fine interface treatment

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金牡丹不同茶类夏秋茶香气品质差异分析

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食品科学 2025年第2期46卷 171-182页

作者：唐梦婷廖献盛吴先寿魏明秀郑玉成金珊张见明叶乃兴福建农林大学园艺学院农作物遗传育种与综合利用教育部重点实验室福建福州350002 武夷学院中国乌龙茶产业协同创新中心福建武夷山354300 福建谦谦一叶茶业科技有限公司福建寿宁355500 寿宁县茶产业发展中心福建寿宁355500

以‘金牡丹’品种夏、秋季嫩梢为原料,分别加工成绿茶、黄茶、白茶、乌龙茶及红茶,采用顶空固相微萃取-气相色谱-质谱联用技术对夏、秋季的5类茶中的挥发性代谢物进行测定和分析。结果表明,夏茶中鉴定出522种挥发性代谢物,以萜类、酯类... 详细信息

以‘金牡丹’品种夏、秋季嫩梢为原料,分别加工成绿茶、黄茶、白茶、乌龙茶及红茶,采用顶空固相微萃取-气相色谱-质谱联用技术对夏、秋季的5类茶中的挥发性代谢物进行测定和分析。结果表明,夏茶中鉴定出522种挥发性代谢物,以萜类、酯类及醇类为主;秋茶中鉴定出502种挥发性代谢物,以萜类、酯类和杂环化合物为主。香气活性值分析表明,β-紫罗兰酮、α-紫罗兰酮、癸醛、苯甲酸甲酯、香叶醇等是金牡丹绿茶的关键呈香物质;β-紫罗兰酮、2-乙氧基-3-甲基吡嗪、癸醛、苯甲酸甲酯、香叶醇等是金牡丹黄茶的关键呈香物质;香叶醇、苯乙醛、水杨酸甲酯、(E)-芳樟醇氧化物、2-乙氧基-3-甲基吡嗪等是金牡丹白茶的关键呈香物质;吲哚、苯甲酸甲酯、苯乙醛、香叶醇、(E)-芳樟醇氧化物等是金牡丹乌龙茶的关键呈香物质;香叶醇、芳樟醇、苯乙醛、苯甲酸甲酯、水杨酸甲酯等是金牡丹红茶的关键呈香物质。秋茶中呈香物质的贡献、种类与数量均多于夏茶,其中,香叶醇、水杨酸甲酯、苯乙醇等42种关键呈香物质在秋季样品中香气活性值均高于夏季。整体而言,金牡丹茶以花香类为主要香型,秋茶香气品质显著优于夏茶,香叶醇、芳樟醇、2-乙氧基-3-甲基吡嗪、苯甲酸甲酯等14种挥发性代谢物为金牡丹茶品种的关键香气物质。

关键词：金牡丹不同茶类夏秋茶香气品质香气活性值

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Combination of Dexmedetomidine and Butorphanol Optimized Sedation in Drug-Induced Sleep Endoscopy: A Randomized, Double-Blind Trial

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Current Medical Science 2021年第6期41卷 1247-1251页

作者： Xin-hao ZHANG shan LIU Wan-min liao Department of Otorhinolaryngology Head and Neck Surgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Anesthesiology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Objective:Drug-induced sleep endoscopy(DISE)allows for the evaluation of dynamic airway collapse in patients with obstructive sleep ***,a standardized sedation regimen for DISE is not yet *** study aimed to investigate the safety profiles and efficacies of dexmedetomidine combined with butorphanol for ***:Sixty patients with obstructive sleep apnea scheduled to undergo DISE were randomly divided into Group D and Group *** recipients were initially given intravenous butorphanol(1 mg)(Group DB)or saline(Group D).Subsequently,both groups were sedated using a loading dose of 1.0 pg/kg/h of *** and respiratory parameters,the time to attain sufficient sedation,wakeup time,and adverse events during DISE were ***:Compared with Group D,the time until sufficient sedation and wakeup time in Group DB were significantly reduced.A higher performer satisfaction level was achieved in Group *** in Group DB showed a higher incidence of bradycardia compared with Group ***,the bradycardia resolved spontaneously in both groups without any *** was no instance of cough,hypotension,arrhythmia,nausea or vomiting in either ***:Compared to dexmedetomidine alone,a small dose of butorphanol infusion(1 mg)as an adjunct treatment to dexmedetomidine during DISE can reduce the dosage of dexmedetomidine,shorten the time until sufficient sedation and enhance the performer satisfaction *** synergistic combination could be a promising sedation regimen for DISE in terms of procedural convenience and patient safety.

关键词： drug-induced sleep endoscopy dexmedetomidine butorphanol obstructive sleep apnea

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Effect of Alkylpyrazinium Counterions on the Host-guest Recognition Based on Dimethoxypillar[5]arenes

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Chemical Research in Chinese Universities 2016年第2期32卷 202-206页

作者： LIU Lijing GUO Lei ZHAO Qiuhua shan Yongkui liao Xiaojuan School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241 P. R. China

In this work, we synthesized n-octylpyrazinium bromide（G-Br） and n-octylpyrazinium hexafluorophos- phate（G-PE6） as model guests and studied their host-guest complexation with 1,4-dimethoxypillar[5]arene（DMP5A）. Effect of alkylpyrazinium counterions on the host-guest recognition was investigated. Based on the lH NOESY spectra, the binding site of DMP5A with G-PF6 is the same as that of DMP5A with G-Br. However, G-PF6 forms a stronger complex with DMP5A than G-Br, owing to that hexafluorophosphate forms weaker doubly inonic H-bonds with ammonium cation than bromide ion in chloroform, which leads to some aggregates that could be dissociated with the addition of DMP5A.

关键词： Pillararene Counterion Host-guest recognition Supramolecular chemistry

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Analysis of the regional spectral properties in northwestern South China Sea based on an empirical orthogonal function

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Acta Oceanologica Sinica 2020年第7期39卷 107-114页

作者： Dongyang Fu Yuye Huang Dazhao Liu shan liao Guo Yu Xiaolong Zhang College of Electronic and Information Engineering Guangdong Ocean UniversityZhanjiang 524088China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China University of Chinese Academy of Sciences Beijing 100049China

This study presents an analysis of the spectral characteristics of remote sensing reflectance(Rrs)in northwestern South China Sea based on the in situ optical and water quality data for August *** initially divided into four classes,classes A to D,using the max-classification algorithm,and the spectral properties of whole Rrs were characterized using the empirical orthogonal function(EOF)***,the dominant factors in each EOF mode were *** results indicated that more than 95%of the variances of Rrs are partly driven by the back-scattering characteristics of the suspended *** initial two EOF modes were well correlated with the total suspended matter and back-scattering ***,the first EOF modes of the four classes of Rrs(A-D Rrs-EOF1)significantly contributed to the total variances of each Rrs *** addition,the correlation coefficients between the amplitude factors of class A-D Rrs-EOF1 and the variances of the relevant water quality and optical parameters were better than those of the unclassified *** spectral shape of class ARrs-EOF1 was governed by the absorption characteristic of chlorophyll a and colored dissolved organic matter(CDOM).The spectral shape of class B Rrs-EOF1 was governed by the absorption characteristic of CDOM since it exhibited a high correlation with the absorption coefficient of CDOM(ag(λ)),whereas the spectral shape of class C Rrs-EOF1 was governed by the back-scattering characteristics but not affected by the suspended *** spectral shape of class D Rrs-EOF1 exhibited a relatively good correlation with all the water quality parameters,which played a significant role in deciding its spectral shape.

关键词： northwestern South China Sea remote sensing reflectance empirical orthogonal function analysis ocean color control factors

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深层肌肉刺激与肌电生物反馈干预脑卒中后患者小腿三头肌痉挛和步态的改变

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中国组织工程研究 2025年第2期29卷 385-392页

作者：张其明廖迪钟志亮林利华郑翔李琼单莎瑞广东药科大学附属第一医院广东省广州市510000

背景:深层肌肉刺激疗法具有松解粘连、缓解痉挛、改善和恢复肌肉顺应性和弹性等作用;肌电生物反馈疗法能有效促进神经恢复和改善下肢运动功能和步态。目的:利用数字化肌肉检测仪和三维步态分析仪等手段综合评估深层肌肉刺激联合肌电生... 详细信息

背景:深层肌肉刺激疗法具有松解粘连、缓解痉挛、改善和恢复肌肉顺应性和弹性等作用;肌电生物反馈疗法能有效促进神经恢复和改善下肢运动功能和步态。目的:利用数字化肌肉检测仪和三维步态分析仪等手段综合评估深层肌肉刺激联合肌电生物反馈对脑卒中后小腿三头肌痉挛及步态改变的影响。方法:选取2020年10月至2023年10月在广东药科大学附属第一医院康复科住院且符合纳入标准的患者72例,随机分为对照组和联合组,每组36例。对照组接受常规康复治疗+肌电生物反馈+假性深层肌肉刺激,联合组在对照组基础上增加真性深层肌肉刺激治疗,5次/周,连续4周。统计分析两组治疗前、后患侧腓肠肌内外侧振荡频率和动态刚度、踝背屈主动关节活动度、胫骨前肌肌电信号、下肢Fugl-Meyer评分量表和三维步态分析相关参数。结果与结论:①两组患者治疗后患侧腓肠肌内外侧的振荡频率和动态刚度值较治疗前明显降低(P0.05)外,其余指标治疗前后的变化量联合组均较对照组效果更明显(P<0.05);⑤结果说明,深层肌肉刺激治疗仪联合肌电生物反馈短期内能有效缓解脑卒中后小腿三头肌痉挛、改善踝背屈功能和提高下肢运动功能及改善步态,治疗效果显著。

关键词：脑卒中深层肌肉刺激数字化肌肉检测仪痉挛步态

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