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| 1 | Genetic Mechanism of Dolomitization in Fengcheng Formation in the Wu-Xia area of Junggar Basin,China显示文摘The dolomitic rocks of the Fengcheng Formation are considered to be formed under special geologic conditions,and are significant hydrocarbon reservoir rocks in the Wu-Xia area in the Junggar Basin.Analyses of petrologic characteristics and stable isotope composition indicate that the dolomitizing host rock is volcanic and the dolomitizing fluids probably consists of brine from shore-shallow lakes with great evaporation and salinity in the Fengcheng Formation,which have formed under arid climatic conditions,as well as residual Mg-rich seawater from the underlying Jiamuhe Formation and Carboniferous.Dust tuff in the area has significant plagioclase content.Anorthite and labradorite hydrolysis by CO2 can be coupled with calcite precipitation.Late Mg-rich brine percolated and replaced calcite formed in the early time,which lead to precipitate dolostones with different occurrences,such as graniphyric,random bedded or lumpy.The diagenetic dolostones with different occurrences resulting from particular formation conditions occurred in different tectonic settings.The dolomitizing fluid has been driven by the thermal convection flow generated by volcanic eruptions.At the same time,the overthrusts of the Wu-Xia growth fault have speeded up the flow of deep Mg-rich water upwards,and induced the water to quickly penetrate and horizontally migrate in the strata.Fracture is the major and the most important reservoir space in dolomitic reservoir of the Fengcheng Formation.Fracture and fault plays a decisive role in controlling the formation of dolostone and the distribution of favorable reservoirs.The deliverability of oil and gas is determined by the development and match relations of dissolved pores and fractures to a certain degree. | ZHU Shifa ZHU Xiaomin NIU Huapeng HAN Xuefang ZHANG Yueqian YOU Xincai | 2012 | Acta Geologica Sinica(English Edition)2012,86,2: | 12 |
| 2 | Monitoring urban land cover and vegetation change by multi-temporal remote sensing information显示文摘In order to analyze changes in human settlement in Xuzhou city during the past 20 years, changes in land cover and vegetation were investigated based on multi-temporal remote sensing Landsat TM images. We developed a hierarchical classifier system that uses different feature inputs for specific classes and conducted a classification post-processing approach to improve its accuracy. From our statistical analysis of changes in urban land cover from 1987 to 2007, we conclude that built-up land areas have obviously increased, while farmland has seen in a continuous loss due to urban growth and human activities. A NDVI difference approach was used to extract information on changes in vegetation. A false change information elimination approach was developed based on prior knowledge and statistical analysis. The areas of vegetation cover have been in continuous decline over the past 20 years, although some measures have been adopted to protect and maintain urban vegetation. Given the stability of underground coal exploitation since 1990s, urban growth has become the major driving force in vegetation loss, which is different from the vegetation change driven by coal exploitation mainly before 1990. | DU Peijun LI Xingli CAO Wen LUO Yan ZHANG Huapeng | 2010 | Mining Science and Technology2010,20,6: | 10 |
| 3 | Epidemiology and Clinical Outcomes of Metabolic(Dysfunction)-associated Fatty Liver Disease显示文摘Metabolic(dysfunction)-associated fatty liver disease(MAFLD)is currently the most common chronic liver disease and affects at least a quarter of the global adult population.It has rapidly become one of the leading causes of hepatocellular carcinoma and cirrhosis in Western countries.In this review,we discuss the nomenclature and definition of MAFLD as well as its prevalence and incidence in different geographical regions.Although cardiovascular disease remains the leading cause of death in MAFLD patients,the proportion of patients dying from hepatic complications increases sharply as the disease progresses to advanced liver fibrosis and cirrhosis.In addition,patients with MAFLD are at increased risk of various extrahepatic cancers.Although a causal relationship between MAFLD and extrahepatic cancers has not been established,clinicians should recognize the association and consider cancer screening(e.g.,for colorectal cancer)as appropriate. | Huapeng Lin Xinrong Zhang Guanlin Li Grace Lai-Hung Wong Vincent Wai-Sun Wong | 2021 | Journal of Clinical and Translational Hepatology2021,9,6: | 8 |
| 4 | Transformers in computational visual media:A survey显示文摘Transformers,the dominant architecture for natural language processing,have also recently attracted much attention from computational visual media researchers due to their capacity for long-range representation and high performance.Transformers are sequence-to-sequence models,which use a selfattention mechanism rather than the RNN sequential structure.Thus,such models can be trained in parallel and can represent global information.This study comprehensively surveys recent visual transformer works.We categorize them according to task scenario:backbone design,high-level vision,low-level vision and generation,and multimodal learning.Their key ideas are also analyzed.Differing from previous surveys,we mainly focus on visual transformer methods in low-level vision and generation.The latest works on backbone design are also reviewed in detail.For ease of understanding,we precisely describe the main contributions of the latest works in the form of tables.As well as giving quantitative comparisons,we also present image results for low-level vision and generation tasks.Computational costs and source code links for various important works are also given in this survey to assist further development. | Yifan Xu Huapeng Wei Minxuan Lin Yingying Deng Kekai Sheng Mengdan Zhang Fan Tang Weiming Dong Feiyue Huang Changsheng Xu | 2022 | Computational Visual Media2022,8,1: | 6 |
| 5 | Forensic Automatic Speaker Recognition Based on Likelihood Ratio Using Acoustic-phonetic Features Measured Automatically显示文摘Forensic speaker recognition is experiencing a remarkable paradigm shift in terms of the evaluation framework and presentation of voice evidence.This paper proposes a new method of forensic automatic speaker recognition using the likelihood ratio framework to quantify the strength of voice evidence.The proposed method uses a reference database to calculate the within-and between-speaker variability.Some acoustic-phonetic features are extracted automatically using the software VbiceSauce.The effectiveness of the approach was tested using two Mandarin databases:A mobile telephone database and a landline database.The experimenfs results indicate that these acoustic-phonetic features do have some discriminating potential and are worth trying in discrimination.The automatic acoustic-phonetic features have acceptable discriminative performance and can provide more reliable results in evidence analysis when fused with other kind of voice features. | Huapeng Wang Cuiling Zhang | 2015 | Journal of Forensic Science and Medicine2015,1,2: | 4 |
| 6 | Effects of Normalized Difference Vegetation Index and Related Wavebands′ Characteristics on Detecting Spatial Heterogeneity Using Variogram-based Analysis显示文摘Spatial heterogeneity is widely used in diverse applications, such as recognizing ecological process, guiding ecological restoration, managing land use, etc. Many researches have focused on the inherent scale multiplicity of spatial heterogeneity by using various environmental variables. How these variables affect their corresponding spatial heterogeneities, however, have received little attention. In this paper, we examined the effects of characteristics of normalized difference vegetation index (NDVI) and its related bands variable images, namely red and near infrared (NIR), on their corresponding spatial heterogeneity detection based on variogram models. In a coastal wetland region, two groups of study sites with distinct fractal vegetation cover were tested and analyzed. The results show that: 1) in high fractal vegetation cover (H-FVC) area, NDVI and NIR variables display a similar ability in detecting the spatial heterogeneity caused by vegetation growing status structure; 2) in low fractal vegetation cover (L-FVC) area, the NIR and red variables outperform NDVI in the survey of soil spatial heterogeneity; and 3) generally, NIR variable is ubiquitously applicable for vegetation spatial heterogeneity investigation in different fractal vegetation covers. Moreover, as variable selection for remote sensing applications should fully take the characteristics of variables and the study object into account, the proposed variogram analysis method can make the variable selection objectively and scientifically, especially in studies related to spatial heterogeneity using remotely sensed data. | WEN Zhaofei ZHANG Ce ZHANG Shuqing DING Changhong LIU Chunyue PAN Xin LI Huapeng SUN Yan | 2012 | Chinese Geographical Science2012,22,2: | 4 |
| 7 | A Scale Sequence Object-based Convolutional Neural Network(SS-OCNN)for crop classification from fine spatial resolution remotely sensed imagery显示文摘The highly dynamic nature of agro-ecosystems in space and time usually leads to high intra-class variance and low inter-class separability in the fine spatial resolution(FSR)remotely sensed imagery.This makes traditional classifiers essentially relying on spectral information for crop mapping from FSR imagery an extremely challenging task.To mine effectively the rich spectral and spatial information in FSR imagery,this paper proposed a Scale Sequence Object-based Convolutional Neural Network(SS-OCNN)that classifies images at the object level by taking segmented objects(crop parcels)as basic units of analysis,thus,ensuring that the boundaries between crop parcels are delineated precisely.These segmented objects were subsequently classified using a CNN model integrated with an automatically generated scale sequence of input patch sizes.This scale sequence can fuse effectively the features learned at different scales by transforming progressively the information extracted at small scales to larger scales.The effectiveness of the SS-OCNN was investigated using two heterogeneous agricultural areas with FSR SAR and optical imagery,respectively.Experimental results revealed that the SS-OCNN consistently achieved the most accurate classification results.The SS-OCNN,thus,provides a new paradigm for crop classification over heterogeneous areas using FSR imagery,and has a wide application prospect. | Huapeng Li Ce Zhang Yong Zhang Shuqing Zhang Xiaohui Ding Peter M.Atkinson | 2021 | International Journal of Digital Earth2021,14,11: | 3 |
| 8 | Land Cover Classification with Multi-source Data Using Evidential Reasoning Approach显示文摘Land cover classification is the core of converting satellite imagery to available geographic data.However,spectral signatures do not always provide enough information in classification decisions.Thus,the application of multi-source data becomes necessary.This paper presents an evidential reasoning (ER) approach to incorporate Landsat TM imagery,altitude and slope data.Results show that multi-source data contribute to the classification accuracy achieved by the ER method,whereas play a negative role to that derived by maximum likelihood classifier (MLC).In comparison to the results derived based on TM imagery alone,the overall accuracy rate of the ER method increases by 7.66% and that of the MLC method decreases by 8.35% when all data sources (TM plus altitude and slope) are accessible.The ER method is regarded as a better approach for multi-source image classification.In addition,the method produces not only an accurate classification result,but also the uncertainty which presents the inherent difficulty in classification decisions.The uncertainty associated to the ER classification image is evaluated and proved to be useful for improved classification accuracy. | LI Huapeng ZHANG Shuqing SUN Yan GAO Jing | 2011 | Chinese Geographical Science2011,21,3: | 3 |
| 9 | Amplified spontaneous emission, optical waveguide and polarized emission based on 2,5-diaminoterephthalates显示文摘A series of 2,5-diaminoterephthalates with a simple structure were synthesized through one-step reaction, and their bar-shaped single crystals with a large size and a smooth surface have been obtained via the solvent-evaporation method. These crystals exhibit bright emission with fluorescence quantum yields higher than 0.2. They display the waveguide property, and low optical loss coefficients for waveguide have been determined for the crystal of one compound. In addition, the crystal can cause linear polarization of the light emitted from it, with a high polarization contrast of 0.70. Most importantly, these crystals can realize amplified spontaneous emission(ASE), including the red ASE, with appreciable energy thresholds of 72–198 k W/cm^2 and high gain coefficients, which suggests the potential of these crystals for the application in organic solid-state lasers. | Baolei Tang Zuolun Zhang Huapeng Liu Hongyu Zhang | 2017 | Chinese Chemical Letters2017,28,11: | 1 |
| 10 | Assembly of plant communities in coastal wetlands--the role of saltcedar Tamarix chinensis during early succession显示文摘Aims The mechanisms of plant community assembly are hypothesized to vary at different stages of succession.Here,we explore the local assemblage structure of a herbaceous plant community at its early stage of succession in a supratidal wetland.specifically,we assess the role of Chinese saltcedar(Tamarix chinensis),the lone dominant shrub species,in shaping the spatial structure and species composi-tion in the local plant community,after landscape alteration.Methods We used the multivariate trend-surface analysis for analyzing the spatial structure of the community composition.a null model was also used to detect potential biotic interactions between species.statistical significance was derived from a permutation test by randomizing the presence-absence matrix and functional traits independently.sensitivity analysis by randomly selecting 50 subplots and repeating the null model tests was also done.Finally,rank correlation analysis was used to study the relationship between effect sizes and distance to nearest T.chinensis individuals.Important Findings The herbaceous plant community was highly structured and shaped by the presence of T.chinensis.at local scale,two functional traits,plant height and leaf area,were found to be significantly convergent.Dispersal,environmental stress and interspecific competition played a trivial effect on the local community assembly.The facilitating effect of T.chinensis on the pioneering herbaceous plants,through acting as a wind shelter,was put forward as the dominant community assembly process. | Meng Gao Xinxiu Wang Cang Hui Huapeng Yi Chuanqi Zhang Xiaoqing Wu Xiaoli Bi Yong Wang Luxiang Xiao De Wang | 2015 | Journal of Plant Ecology2015,8,5: | 1 |
| 11 | Non-invasive tests of non-alcoholic fatty liver disease显示文摘For the detection of steatosis,quantitative ultrasound imaging techniques have achieved great progress in past years.Magnetic resonance imaging proton density fat fraction is currently the most accurate test to detect hepatic steatosis.Some blood biomarkers correlate with non-alcoholic steatohepatitis,but the accuracy is modest.Regarding liver fibrosis,liver stiffness measurement by transient elastography(TE)has high accuracy and is widely used across the world.Magnetic resonance elastography is marginally better than TE but is limited by its cost and availability.Several blood biomarkers of fibrosis have been used in clinical trials and hold promise for selecting patients for treatment and monitoring treatment response.This article reviews new developments in the non-invasive assessment of non-alcoholic fatty liver disease(NAFLD).Accumulating evidence suggests that various non-invasive tests can be used to diagnose NAFLD,assess its severity,and predict the prognosis.Further studies are needed to determine the role of the tests as monitoring tools.We cannot overemphasize the importance of context in selecting appropriate tests. | Guanlin Li Xinrong Zhang Huapeng Lin Lilian Yan Liang Grace Lai-Hung Wong Vincent Wai-Sun Wong | 2022 | Chinese Medical Journal2022,,5: | 1 |
| 12 | Growth of CdSiP 2 single crystals by self-seeding vertical Bridgman method显示文摘 | Guodong Zhang Xutang Tao Huapeng Ruan Shanpeng Wang Qiong Shi | 2011 | Journal of Crystal Growth2011,,: | 1 |
| 13 | On fuzzy rough sets based on tolerance reiations显示文摘 | Ouyang Yao Wang Zhudeng Zhang Huapeng | 2010 | Information Sciences2010,180,4: | 1 |
| 14 | A novel process for preparing expanded Polytetrafluoroethylene(ePTFE) micro-porous membrane through ePTFE/ePTFE co-stretching technique显示文摘 | Yuhai Guo Jianyong Chen Xinmin Hao Jianchun Zhang Xinxing Feng Huapeng Zhang | 2007 | Journal of Materials Science2007,,6: | 1 |
| 15 | Effects of solar UV irradiation on the tensile properties and structure of PPTA fiber 显示文摘 | Zhang Huapeng Zhang Jianchun Chen Jianyong | 2006 | Polymer Degradation and Stability2006,91,27: | 1 |
| 16 | Syntheses, Cytotoxicity and Properties of CO Releasing Molecules Containing Acetyl Salicylamide-3-pyridine显示文摘一系列共同释放的分子[M (公司)5 L ](M=Cr, W,瞬间, L=acetyl salicylamide 3-pyridine, 1-3;L=N, N-dimethyl-4-pyridine, 4-6;L=nicotinamide, 7-9;L=4-CHO-pyridine, 10-12 ) 被综合。并且在这糊,我们主要调查了包含乙酰 salicyamide-3-pyridine 的共同释放的分子的 cytotoxicity 和性质,也就是建筑群 1-3。建筑群的稳定性 1 和 2 借助于紫外力的光谱学和 1 H NMR 系列。结果显示 1 和 2 是的建筑群在甲醇和酸的水的答案的马厩,但是在基本媒介不稳定、腐烂(pH 10.0 ) 。在所有建筑群之中,建筑群 2 是最慢的公司版本,并且它的半衰期是 73.8 min。复杂 9 包含菸碱仅仅是有半衰期的最快的公司版本 6.5 min。另外,成纤维细胞线的增长上的所有建筑群的细胞毒素的效果是由 MTT 的 assayed。在所有建筑群之中,建筑群 1 的 IC 50 是 6 µmol/L,揭示比控制的建筑群 1 拥有的更强壮的 antiproliferative 活动。当 2 和 8 在 G2/M 逮捕了的建筑群分阶段执行时,由流动 cytometry 的分析表明建筑群 1 在 S 阶段逮捕了 Hela 房间。建筑群引起的房间 apoptosis 主要发生在“迟了的 apoptosis ”。 | Huapeng Liu Yaguo Gong Taofeng Zhang Na Li Quanyi Zhao Yonglin Chen Bin Liu Yawen Zheng | 2015 | Chinese Journal of Chemistry2015,33,7: | 1 |
| 17 | Note on 'Gen- eralized rough sets based on reflexive and transitive relations' 显示文摘 | Zhang Huapeng Ouyang Yao Wang Zlaudeng | 2009 | Information Sciences2009,179,: | 1 |
| 18 | A Mesenchymal-to-Epithelial Transition Initiates and Is Required for the Nuclear Reprogramming of Mouse Fibroblasts显示文摘 | Ronghui Li Jialiang Liang Su Ni Ting Zhou Xiaobing Qing Huapeng Li Wenzhi He Jiekai Chen Feng Li Qiang Zhuang Baoming Qin Jianyong Xu Wen Li Jiayin Yang Yi Gan Dajiang Qin Shipeng Feng Hong Song Dongshan Yang Biliang Zhang Lingwen Zeng Liangxue Lai Miguel | 2010 | Cell Stem Cell2010,,1: | 1 |
| 19 | Local convexity and local boundedness of induced I ( L ) -topological vector spaces 显示文摘 | ZHANG Huapeng FANG Jinxuan | 2007 | Fuzzy Sets and Systems2007,158,: | 1 |
| 20 | New definition of locally convex L-topological vector spaces 显示文摘 | I ZHANG Huapeng FANG Jinxuan | 2009 | Fuzzy Sets and Systems2009,160,: | 1 |