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24篇 您的检索式:作者名="Meiyun Wang"
    题名 作者 年代 出处 被引量
1Detecting prostate cancer and prostatic calcifications using advanced magnetic resonance imaging显示文摘前列腺癌症和 prostatic 石灰化在老人有高发生。我们试图在检测前列腺癌症和 prostatic 石灰化调查危险性加权的成像的诊断能力。156 个人的一个全部的数字,与前列腺癌症包括 34 并且 122 在这研究与良性的前列腺被注册。计算断层摄影术,常规磁性的回声成像,散开加权的成像,和危险性加权的成像在所有病人上被执行。112 prostatic 石灰化在 87 个病人被检测。常规磁性的回声成像,明显的散开系数,和在检测前列腺癌症和 prostatic 石灰化的过滤危险性的阶段图象的敏感和特性是计算的。McNemars Chi 平方测试被用来在在这些技术之间的敏感和特性比较差别。结果证明在检测 prostatic 癌症的过滤危险性的阶段图象的敏感和特性比常规磁性的回声成像和明显的散开系数的大(P < 0.05 ) 。另外,在检测 prostatic 石灰化的过滤危险性的阶段图象的敏感和特性比得上计算断层摄影术的并且比常规磁性的回声成像和明显的散开系数的大(P < 0.05 ) 。在前列腺癌症给危险性加权的成像(SWI ) 的高发生反常,我们断定危险性加权的成像在检测前列腺癌症比常规磁性的回声成像,散开加权的成像,和计算断层摄影术更敏感、特定。而且,危险性加权的成像能识别类似于计算断层摄影术的 prostatic 石灰化,并且它比常规磁性的回声成像和散开加权的成像好一些。Shewei Dou Yan Bai Ankit Shandil Degang Ding Dapeng Shi E Mark Haacke Meiyun Wang 2017Asian Journal of Andrology2017,19,4:7
2Preparation of Highly Crystalline Microcrystalline Cellulose by Hydrolysis of Cellulose with Phosphotungstic Acid显示文摘Phosphotungstic acid(H_3PW_(12)O_(40), HPW), a kind of solid acid, is widely used for hydrolyzing cellulose to prepare microcrystalline cellulose(MCC). MCC is usually used in food, synthetic leather, chemical and pharmaceutical industries. The use of response surface methodology(RSM)can help avoid the random error caused by single factor experimental design,reduce test times and cost, and improve quality. The RSM was used in this study to determine the following optimal process conditions: H^+ molar quantity, 31 mmol/L; reaction temperature, 93℃; reaction time, 2 h; and solid to liquid ratio, 1∶38. Under these conditions, the crystallinity of MCC was77.4%. Thus, the use of RSM allows the preparation of MCC with higher performance and increased crystallinity.Jing Wang JinBao Li MeiYun Zhang ShunXi Song DanDan Qiang 2018Paper And Biomaterials2018,3,1:5
3Foam Forming: An Effective Method to Prepare Polyimide Fiber-based Paper显示文摘Well-dispersed fiber suspension is the precondition of good paper formation. Compared with cellulosic fibers, synthetic fibers are prone to flocculate because of their long length and hydrophobic nature, resulting in poor paper formation. To solve this problem, dispersants and extremely low forming consistency are typically adopted during the traditional wet-forming process, which cause a large amount of water consumption and treatment cost. Therefore, increasing forming consistency without compromising paper formation remains a challenge for papermakers. In this work, foam forming was adopted to disperse polyimide fibers (PI) with high forming consistency. The results showed that the formation index of handsheets increased when the bubble size and distribution became small and narrow. Compared with traditional wet-forming process with the same consistency (0.4%), the formation index of handsheets by foam forming increased by approximately 100% when C8 alkyl glucoside (APG08) concentration reached 16 g/L. Notably, forming consistency could increase by eight times while keeping the same level of paper formation. Overall, foam forming exhibits great advantages in dispersing long fiber and reducing water consumption and environmental pressure, and has potential applications in specialty paper made of long fibers.Shunxi Song Xiaoli Zhen Meiyun Zhang Peiyao Wang Jiaojun Tan 2019Paper And Biomaterials2019,4,3:4
4Identification of Cognitive Dysfunction in Patients with T2DM Using Whole Brain Functional Connectivity显示文摘Majority of type 2 diabetes mellitus(T2DM)patients are highly susceptible to several forms of cognitive impairments,particularly dementia.However,the underlying neural mechanism of these cognitive impairments remains unclear.We aimed to investigate the correlation between whole brain resting state functional connections(RSFCs)and the cognitive status in 95 patients with T2DM.We constructed an elastic net model to estimate the Montreal Cognitive Assessment(MoCA)scores,which served as an index of the cognitive status of the patients,and to select the RSFCs for further prediction.Subsequently,we utilized a machine learning technique to evaluate the discriminative ability of the connectivity pattern associated with the selected RSFCs.The estimated and chronological MoCA scores were significantly correlated with R=0.81 and the mean absolute error(MAE)=1.20.Additionally,cognitive impairments of patients with T2DM can be identified using the RSFC pattern with classification accuracy of 90.54%and the area under the receiver operating characteristic(ROC)curve(AUC)of 0.9737.This connectivity pattern not only included the connections between regions within the default mode network(DMN),but also the functional connectivity between the task-positive networks and the DMN,as well as those within the task-positive networks.The results suggest that an RSFC pattern could be regarded as a potential biomarker to identify the cognitive status of patients with T2DM.Zhenyu Liu Jiangang Liu Huijuan Yuan Taiyuan Liu Xingwei Cui Zhenchao Tang Yang Du Meiyun Wang Yusong Lin Jie Tian 2019Genomics, Proteomics & Bioinformatics2019,17,4:4
5Highly Improved Microstructure and Properties of Poly(p-phenylene terephthalamide) Paper-based Materials via Hot Calendering Process显示文摘In this study,the effect of hot calendering process on the microstructure and properties of poly(p-phenylene terephthalamide)(PPTA) paper-based materials was investigated.The microstructures of the fracture surface,crystalline structure,and single fiber strength of the PPTA paperbased materials as well as the different bonding behaviors between the PPTA fibers and PPTA fibrids obtained before and after the hot calendering process were examined.The results indicated that a high linear pressure would result in a limited improvement of the strength owing to the unimproved paper structure.The optimal values of tensile index and dielectric strength of 56.6 N·m/g and 27.6 kV/mm,respectively,could only be achieved with a synergistic effects of hot calendering temperature and linear pressure(240℃ and 110 k N/m,respectively).This result suggested it was possible to achieve a significant reinforcement and improvement in the interfacial bonding of functional PPTA paper-based materials,and avoid the formation of unexpected pleats and cracks in PPTA paper-based materials during the hot calendering process.Bin Yang ZhaoQing Lu MeiYun Zhang ShunXi Song RuNan Wang 2017Paper And Biomaterials2017,2,3:3
62021 Chinese consensus on the diagnosis and management of primary immune thrombocytopenia in pregnancy显示文摘Immune thrombocytopenia(ITP)is an acquired disease characterized by isolated thrombocytopenia,which is one of the most common causes of thrombocytopenia during pregnancy.Women with ITP who have severe thrombocytopenia are at an increased risk for life-threatening obstetric complications.Therefore,we established this consensus statement on the diagnosis and management of ITP during pregnancy(detailed information is available in the Supplementary File,http://links.lww.com7CM9/A978).Zhang Xiaohui Chen Fangping Chen Xiequn Cheng Yunfeng Fang Meiyun Feng Jianming Fu Haixia Gao Hong Han Yue He Aili Hou Ming Hu Yu Huang Ruibin Huang Wenrong Jing Zhicheng Kong Peiyan Liang Aibin Liang Meiying Liu Daihong Liu Junling Liu Lin Liu Xiaowei Ma Liangming Mei Heng Ni Heyu Niu Ting Peng Jun Qiao Jianlin Ren Jinhai Song Yongping Tang Liang V Tong Tong Wang Shaoyuan Wang Xin Wang Zhao Wei Hui Wu Depei Wu Guangsheng Xu Caigang Xu Xue Xu Yajing Yang Linhua Yang Renchi Yang Tonghua Yin Chenghong Yu Li Zhang Guangsen Zhang Lei Zhang Liansheng Zhang Xi Zhao Weili Zhao Yongqiang Zhou Daobin Zhou Hu Zhou Zeping Zhu Tienan Wang Jianliu Huang Xiaojun 2022Chinese Medical Journal2022,,8:2
7Using a Novel Fly Ash Based Calcium Silicate as a Potential Paper Filler 显示文摘Zhang Meiyun Song Shunxi Wang Jian 2013BioRe- sources2013,8,2:1
8Multi-scale phase average waveform of electroencephalogram signals in childhood absence epilepsy using wavelet transformation显示文摘BACKGROUND:Recent studies have focused on various methods of wavelet transformation for electroencephalogram(EEG) signals.However,there are very few studies reporting characteristics of multi-scale phase waves during epileptic discharge.OBJECTIVE:To extract multi-scale phase average waveforms from childhood absence epilepsy EEG signals between time and frequency domains using wavelet transformation,and to compare EEG signals of absence seizure with pre-epileptic seizure and normal children,and to quantify multi-scale phase average waveforms from childhood absence epilepsy EEG signals.DESIGN,TIME AND SETTING:The case-comparative experiment was performed at the Department of Neuroelectrophysiology,Tianjin Medical University from August 2002 to May 2005.PARTICIPANTS:A total of 15 patients with childhood absence epilepsy from the General Hospital of Tianjin Medical University were enrolled in the study.The patients were not administered anti-epileptic drugs or sedatives prior to EEG testing.In addition,12 healthy,age-and gender-matched children were also enrolled.METHODS:EEG signals were tested on 15 patients with childhood absence epilepsy and 12 normal children.Epileptic discharge signals during clinical and subclinical seizures were collected 10 and 20 times,respectively.The collected EEG signals were treated with wavelet transformation to extract multi-scale characteristics during absence epilepsy seizure using a conditional sampling method.Multi-scale phase average waveforms were collected using a conditional phase averaging technique.Amplitude of phase average waveform from EEG signals of epilepsy seizure,subclinical epileptic discharge,and EEG signals of normal children were compared and statistically analyzed in the first half-cycle.MAIN OUTCOME MEASURES:Multi-scale wavelet coefficient and the evolution of EEG signals were observed during childhood absence epilepsy seizures using wavelet transformation.Multi-scale phase average waveforms from EEG signals were observed using a conditional sampling method and phase averaging technique.RESULTS:Multi-scale characteristics of EEG signals demonstrated that 12-scale(3 Hz) rhythmical activity was significantly enhanced during childhood absence epilepsy seizure and co-existed with background structure(< 1 Hz,low frequency discharge).The phase average wave exhibited opposed phase abnormal rhythm at 3 Hz.Prior to childhood absence epilepsy seizure,EEG detected opposed abnormal α rhythm and 3 Hz composition,which were not detected with traditional EEG.Compared to EEG signals from normal children,epileptic discharges from clinical and subclinical childhood absence epilepsy seizures were positive and amplitude was significantly greater(P < 0.05).CONCLUSION:Wavelet transformation was used to analyze EEG signals from childhood absence epilepsy to obtain multi-scale quantitative characteristics and phase average waveforms.Multi-scale wavelet coefficients of EEG signals correlated with childhood absence epilepsy seizure,and multi-scale waveforms prior to epilepsy seizure were similar to characteristics during the onset period.Compared to normal children,EEG signals during epilepsy seizure exhibited an opposed phase model.Meiyun Zhang Benshu Zhang Fenglou Wang Ying Chen Nan Jiang 2010Neural Regeneration Research2010,5,10:1
9Effects of three test-meal on transient lower esophageal sphincter relaxation (TLESR) in healthy subjects and mechanism of gastroesophageal reflux 显示文摘Ke Meiyun Sun Xiaohong Wang Zhifeng 2002Gastroenterology2002,122,4:1
10Investigation of LRS dependence on the retention of HRS in CBRAM显示文摘Xiaoxin Xu Hangbing Lv Hongtao Liu Qing Luo Tiancheng Gong Ming Wang Guoming Wang Meiyun Zhang Yang Li Qi Liu Shibing Long Ming Liu 2015Nanoscale Research Letters2015,,:1
11An overview of the switching parameter variation of RRAM显示文摘Resistive random access memory(RRAM) has been considered as one of the most promising candidates for next-generation nonvolatile memory, due to its advantages of simple device structure, excellent scalability, fast operation speed and low power consumption. Deeply understanding the physical mechanism and effectively controlling the statistical variation of switching parameters are the basis of fostering RRAM into commercial application. In this paper, based on the deep understanding on the mechanism of the formation and rupture of conductive filament, we summarize the methods of analyzing and modeling the statistics of switching parameters such as SET/RESET voltage, current, speed or time. Then, we analyze the distributions of switching parameters and the influencing factors. Additionally, we also sum up the analytical model of resistive switching statistics composed of the cell-based percolation model and SET/RESET switching dynamics. The results of the model can successfully explain the experimental distributions of switching parameters of the Ni O- and Hf O2-based RRAM devices. The model also provides theoretical guide on how to improve the uniformity and reliability such as disturb immunity. Finally, some experimental approaches to improve the uniformity of switching parameters are discussed.Meiyun Zhang Shibing Long Guoming Wang Yang Li Xiaoxin Xu Hongtao Liu Ruoyu Liu Ming Wang Congfei Li Pengxiao Sun Haitao Sun Qi Liu Hangbing L Ming Liu 2014Chinese Science Bulletin2014,59,36:1
12Visceral sensitivity to gastric stimulation and its correlation with alterations in gastric emptying and accommodation in humans 显示文摘Shukun Yao Meiyun Ke Zhifeng Wang 2005Obesity Surgery2005,15,:1
13Using a novel fly ash based calcium silicate as a potential paper filler显示文摘Meiyun Zhang Shunxi Song Jian Wang 2013BioResources2013,8,2:1
14Coaxing Polysaccharide Granules into Supramolecular Biocolloidal Additives for Papermaking显示文摘In light of developments in polysaccharide-based sustainable processes involving supramolecular interactions,we herein present our findings pertaining to coaxing polysaccharide granules into functional supramolecular biocolloids.Translucent biocolloidal dispersions containing various forms of starch are facilely designable,essentially built upon complexation between disassembled native cornstarch granules and amphiphilic ligands.Oily moieties of guest molecules are dynamically attractable into cavities of helical structures,with cationic groups pointing toward the bulk phase.This noncovalent attraction can generate core-shell biocolloidal particles.The significantly higher gelatinizability of freeze-dried biocolloids in contrast to native cornstarch granules is attributable to complex formation,and a homogenous dispersion is readily formable at room temperature.Our results also show biocolloids'ligand-related antibacterial activity.The use of biocolloids as wet-end additives for biofiber assemblies(cellulosic paper)can enhance mechanical strength,fines retention,and filler bondability.Supramolecular biocolloids with positively charged,translucent,easily gelatinizable,antibacterial,and polysaccharide-bondable functionalities would find tailorable use in the paper industry.Yongsheng Wang Wenyuan Zhu Xueren Qian Meiyun Zhang Shunxi Song Chuyan Jing Zhengren Meng Shiyu Xu Xianhui An Xiujie Huang Jing Shen 2020Paper And Biomaterials2020,5,2:1
15Caibon membranes for gas separation显示文摘Wang Shusen Zhen Meiyun 1996Separation Science and Technology1996,31,16:1
16Synthesis of Bis-benzimidazolium Cyclic Receptors and Their Anion Binding Properties显示文摘15 基于 bis-benzimidazolium 组织的一系列周期的受体被设计并且综合。他们的阴离子识别性质被调查由紫外力,荧光灯光谱学, 1H NMR 和 MALDI-TOF 集体 spectrometry。紫外力、荧光灯的分光镜的研究证明受体为象氟化物,氯化物,溴化物,碘化物和醋酸盐那样的各种各样的阴离子的 15 个有的不同有约束力的能力。为氟化物和醋酸盐阴离子的受体的高选择被归因于他们的盐基度。工作阴谋和 MALDI-TOF 团 spectrometry 证明受体形成与氟化物复杂的 1:1。DFT 计算和 1H NMR 研究显示受体绑阴离子通过(CH )+?? X 氢债券。Xiaozhi Jiang Meiyun Feng Dawei Zhang Binshen Wang Zhiyun Dong Guohua Gao 2013Chinese Journal of Chemistry2013,31,5:1
17Aggregationbehavior of partially fluorinated Gemini surfactants in aqueoussolution:Effect of headgroups 显示文摘WANG MEIYUN KONG SHENGNAN UU SHU et ai 2014Colloids Surf A Physicochem EngAsp2014,441,:1
18Using a novel fly ash based calcium silicate as a potential paper filler显示文摘Meiyun Zhang Shunxi Song Jian Wang 2013BioResources2013,8,2:1
19Women at the Change of Life——Comparisons of Menopausal Symptoms of Women in Urban and Rural Areas显示文摘IT is very important to talk about women’s life quality when they approach the age of menopause. The results of a research investigation on the 'Mental and Health Condition of Rural/Urban Women at Menopause' and the 'Common Mental and Health Problems of Women at Menopause and its Treatment in Nanjing,' reveal that the incidenceWANG LINHONG GE MEIYUN ZHANG FENGRU 1998Women of China1998,,4:0
20Preparation of Thermal Insulation Ceramics Using Felsic Tailings as Main Raw Material and Soda-ash Dregs as Flux显示文摘Low-cost thermal insulation porous ceramics with uniform pore diameter and low bulk density were prepared with soda-ash dregs and felsic tailings.We investigated the effect of temperature,foaming agent,fluxing agent,Al_(2)O_(3)and CaO content on the pore structure and crystal phase of porous ceramics.The effect of Ca^(2+)in soda-ash dregs on the preparation of quartz-feldspar based porous ceramics was studied.The results showed that the contribution of Ca^(2+)to the preparation of porous ceramics in this system was mainly to accelerate the Si-O bond fracture and reduce the sintering temperature at the initial stage of sintering,which destroyed the needle-like feldspar in the high temperature melt and reduced the melt viscosity,thus reduced the foaming resistance and promoted the porous products with uniform pore size distribution.The Ca^(2+)content on the high side can participate in the formation of crystals in sintering.The generated needle-like diopside and augite,which have small length-diameter ratio,will negligibly change in the viscosity of melt at high temperatures,and their inhibition effect on pores is not as good as that of feldspar with large length-diameter ratio,resulting in the merger and collapse of pores.But the increase of diopside and augite can improve the compressive strength of porous products to some extent.Porous ceramic products containing needle-like feldspar phase can be prepared by using two kinds of solid waste,which can improve the compressive strength of the products and reduce the raw material cost and energy consumption while comprehensively utilizing the double solid waste.The optimal product has a bulk density of 0.45 g/cm^(3),a compressive strength of 3.17 MPa,and a thermal conductivity of 0.11 W/(m·K).王志明 YAO Geng WANG Qiang ZHU Xiangnan QU Meiyun ZHAO Wei LIU Qing SUN Shaokang XIA Chuanbo 吕宪俊 2023Journal of Wuhan University of Technology(Materials Science)2023,38,1:0
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