|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Detecting 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 | 2017 | Asian Journal of Andrology2017，19，4： | 7 |
| 2 | Natural Polysaccharide:Modification and Application显示文摘Natural polysaccharides are synthetic macromolecules located in the cell wall and intracellular,intercellular,and secretory cells.These are essential components of life activities.Cellulose and its derivatives,chitosan,alginic acid,starch,and other natural polymer materials that exist in nature are polysaccharides.This article briefly reviews the structure and sources of several natural polysaccharides,focusing on the modification design strategies of polysaccharides such as graft polymerization,oxidation,etherification,and esterification on cellulose(mainly cellulose nanocrystals,CNC),chitosan(CTS),and other polysaccharides and derivatives in the fields of biomass energy,composite materials,wastewater treatment,and biomedicine.Based on the theory of modification and application of polysaccharides at the present stage,future research goals and modification strategy design are prospected. | Ting Chen Ce Sun Xiuzhi Tian Xue Jiang Meiyun Zhang | 2021 | Paper And Biomaterials2021，6，2： | 6 |
| 3 | Preparation 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 | 2018 | Paper And Biomaterials2018，3，1： | 5 |
| 4 | Spatiotemporal Evolution of Ecological Security in the Wanjiang City Belt,China显示文摘Ecological security is the foundation and guarantee of sustainable development,and its importance is increasingly widely recognized and valued by the world.The Yangtze River Basin is an important ecological security barrier in China and the Wanjiang City Belt(WCB)along the Yangtze River is directly related to the ecological security pattern of the entire basin.Based on the Driver-Pressure-State-Impact-Response(DPSIR)model and a geographical information system(GIS)platform,an ecosystem security evaluation index system was constructed to measure and evaluate the evolution of ecosystem security in the WCB,China.Results showed that:1)From 2000 to 2018,the overall level of ecological security in the study area was in a state of either early warning or medium warning,but the level of ecological security in each prefecture-level city was significantly different.2)From the perspective of the evolution of the ecosystem,the value of its comprehensive evaluation index dropped from 4.255 in 2000 to 3.885 in 2018.From the perspective of subsystems,the value of Pressure comprehensive evaluation index is much higher than that of other subsystems,indicating that during the rapid development of the social economy,the pressure on the natural environment tended to rise,and triggered changes in the State and Response subsystems.3)The coefficient of variation(CV)of the Driver was much higher than other factors influencing the ecological security system.There are large differences in the economic development and ecological evolution of the cities in the WCB.This study has improved the theoretical research on regional ecological security,and has certain practical guiding significance for building a beautiful,green and sustainable China and promoting global ecological security. | CAO Yuhong LIU Meiyun ZHANG Yu CHEN Chen CAO Weidong | 2020 | Chinese Geographical Science2020，30，6： | 4 |
| 5 | Foam 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 | 2019 | Paper And Biomaterials2019，4，3： | 4 |
| 6 | Identification 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 | 2019 | Genomics, Proteomics & Bioinformatics2019，17，4： | 4 |
| 7 | Ionic liquids containing the urea moiety for recognition of halides and complex anions显示文摘A series of novel imidazolium based ionic liquids containing the urea moiety were designed and synthesized for anion recognition. 1-Ethylurea-3-methylimidazolium acetate ([Eumim]OAc) was used as the receptor for the halides and complex anions (BF4-, PF6-, BPh4-). 1H NMR spectra showed that the urea protons and imidazolium C(2) proton of the receptor ([Eumim]OAc) moved upfield on addition of various anions. A Job plot showed that the [Eumim]OAc receptor formed a 1:1 complex with BPh4-. X-ray diffraction analysis and the molecular modeling study revealed that the conformations of [Eumim]OAc and [Eumim]BPh4 were different. The conformational change of the cation was caused by anion exchange, and may provide an alternative to current methods for recognition of anions. | DONG ZhiYun YANG Yu ZHANG LiFeng XUE YunRong FENG MeiYun GAO GuoHua | 2012 | Chinese Science Bulletin2012，57，5： | 3 |
| 8 | Highly 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 | 2017 | Paper And Biomaterials2017，2，3： | 3 |
| 9 | 2021 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://gffzz16e312a87a7141a5hxqnnb9wkvq9560cp.ffgz.tsg.suse.edu.cn/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 | 2022 | Chinese Medical Journal2022，，8： | 2 |
| 10 | Study on Soil Improvement Measure of Plant Landscape Construction in Saline and Alkaline Area in Tianjin显示文摘A detailed research in soil improving measure was conducted during the process of plants that were cultivated in Tianjin saline and alkaline area. The results showed that the commonly used measures could improve the soil, and also we got some useful advices and suggestions for plants cultivating in Tianjin saline and alkaline areas. | GENG Meiyun CHEN Yajun HU Haihui YU Lei | 2006 | Journal of Northeast Agricultural University(English Edition)2006，13，2： | 2 |
| 11 | Improved Keystroke Authentication Accuracy Based on Statistics and Weight显示文摘In order to improve the recognition accuracy of keystroke authentication, a methodology based on feature extraction of keystroke sequence is presented in this paper. Firstly, the data of the users' keystroke feature information that has too much deviation with the mean deviation is filtered out. Secondly, the probability of each input key is calculated and 10 values which do not have the best features are selected. Thirdly, they are weighed and a score evaluating the extent to which the user could be authenticated successfully is calculated. The benefit of using a third-party data set is more objective and comparable. At last, the experimental result shows that the detector in this paper is more accurate than the other three. | Li Jian Guo Xiaojing Li Meiyun Li Ruifan | 2012 | China Communications2012，9，7： | 2 |
| 12 | The study and test of liquefaction resistant characteristics of silt 显示文摘 | Niu Qiying Qiu Yihui Shi Meiyun | 1996 | Journal of Taiyuan University of Technology1996，27，3： | 1 |
| 13 | Landscape architecture and environment improvement of coal enterprises显示文摘The coal enterprise's spoiled environment situation was analyzed in this paper. The coal enterprises'environment conditions must be improved under the trend of sustainable development and economic globalization. And it is important for using landscape architecture techniques to improve coal enterprises'environmental conditions. Four principles should be followed to improve the coal enterprises' environment by landscape architect were pointed out. | GENG Meiyun CHEN Yajun GONG Shufang HU Haihui | 2007 | Journal of Northeast Agricultural University(English Edition)2007，14，1： | 1 |
| 14 | Using a Novel Fly Ash Based Calcium Silicate as a Potential Paper Filler 显示文摘 | Zhang Meiyun Song Shunxi Wang Jian | 2013 | BioRe- sources2013，8，2： | 1 |
| 15 | A new simple and efficient synthesis of N-arylphthalimides in ionic liquid显示文摘 | Zhou Meiyun Li Yiqun Xu Xining | 2003 | Synthetic Communications2003，33，21： | 1 |
| 16 | Adhesion characteris- tics of aramid fibre-fibrids in a sheet hot calendering process 显示文摘 | ZHANG Sufeng ZHANG Meiyun LI Kecheng | 2010 | Appita Journal2010，63，1： | 1 |
| 17 | Effect of PPTA Fiber Morphology on the Performance of Paper-Based Functional Materials 显示文摘 | Zhang Meiyun Huang Rui Lu Zhaoqing | 2011 | Advanced Materials Research2011，23，6238： | 1 |
| 18 | Multi-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 | 2010 | Neural Regeneration Research2010，5，10： | 1 |
| 19 | Effects 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 | 2002 | Gastroenterology2002，122，4： | 1 |
| 20 | Apigenin inhibits Antiestrogen-resistant breast cancer cell growth through estrogen receptor-α-independent mechanisms显示文摘 | Long Xinghua Fan Meiyun Robert | | 0，，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员