|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | An intelligent coastline interpretation of several types of seacoasts from TM/ETM+ images based on rules显示文摘A coastline is defined as the average spring tide line. Different types of seacoast, such as sandy, silty, and biological coast, have different indicators of interpretation. It is very difficult to develop a universal method for interpreting all shorelines. Therefore, the sandy, the silty, and the biological coast are regarded as research objects, and with data mining technology, found the rules of interpretation of those three types of coastlines. Then, an intelligent coastline interpretation method based on rules was proposed. Firstly, the rules for extracting the waterline in Landsat TM/ETM+(Thematic Mapper/Enhanced Thematic Mapper Plus) imagery were discovered. Then, through analyzing the features of sandy, silty and biological coast, the indicators of interpreting different types of shoreline were determined. According to the indicators, the waterline could be corrected to the real coastline. In order to verify the validity of the proposed algorithms, three Landsat TM/ETM+ imageries were selected for case studies. The experimental results showed that the proposed methods could interpret the coastlines of sandy, silty, and biological coasts with high precision and without human intervention, which exceeded three pixels. | WANG Changying ZHANG Jie SONG Pingjian | 2014 | Acta Oceanologica Sinica2014，33，7： | 7 |
| 2 | Numerical Simulation of Low Reynolds Number Fluid-Structure Interaction with Immersed Boundary Method显示文摘提出一种基于SIMPLE算法的非定常流固耦合计算方法。流体Navier-Stokes方程空间采用非结构化网格有限体积法离散,时间项采用了欧拉隐式方法。利用浸入式边界方法模拟静止或者运动固体区域,流固界面作用力通过流体体积(VOF)方法进行处理。从而可以用固定网格求解任意复杂区域中的流固耦合作用。本文模拟了低雷诺数静止及振荡圆柱绕流,所得结果与文献中贴体网格计算结果吻合,从而验证了本文方法的合理性和正确性。 | Ming Pingjian Zhang Wenping | 2009 | Chinese Journal of Aeronautics2009，22，5： | 3 |
| 3 | A High Order Control Volume Finite Element Method for Transient Heat Conduction Analysis of Multilayer Functionally Graded Materials with Mixed Grids显示文摘This paper describes a new two-dimensional(2-D)control volume finite element method(CV-FEM)for transient heat conduction in multilayer functionally graded materials(FGMs).To deal with the mixed-grid problem,9-node quadrilateral grids and 6-node triangular grids are used.The unknown temperature and material properties are stored at the node.By using quadratic triangular grids and quadratic quadrilateral grids,the present method offers greater geometric flexibility and the potential for higher accuracy than the linear CV-FEM.The properties of the FGMs are described by exponential,quadratic and trigonometric grading functions.Some numerical tests are studied to demonstrate the performance of the developed method.First,the present CV-FEM with mixed high-order girds provides a higher accuracy than the linear CV-FEM based on the same grid size.Second,the material properties defined location is proved to have a significant effect on the accuracy of the numerical results.Third,the present method provides better numerical solutions than the conventional FEM for the FGMs in conjunction with course high-order grids.Finally,the present method is also capable of analysis of transient heat conduction in multilayer FGM. | LIU Qi MING Pingjian ZHAO Haiyang ZHANG Wenping | 2020 | Journal of Thermal Science2020，29，1： | 2 |
| 4 | Unstruc- tured finite volume method for water impact on a rigid body显示文摘 | YU Yan MING Pingjian DUAN Wenyang | 2014 | Journal of hydrodynanfics2014，26，4： | 1 |
| 5 | Exploring the influence of lake water chemistry on chlorophyll a: A multivariate statistical model analysis 显示文摘 | Liu Yong Guo Huaicheng Yang Pingjian | 2010 | Ecological Modelling2010，221，： | 1 |
| 6 | Empiric and dynamic detection of the sea bottom topography from synthetic aperture radar image 显示文摘 | YUAN YELl JIN MEIBIN SONG PINGJIAN | 2009 | Advances in Adaptive Data Analysis2009，1，2： | 1 |
| 7 | 显示文摘 | CAO Linyou CHAI Yang LI Pingjian | 2005 | Thin Solid Films2005，492，12： | 1 |
| 8 | Numerical Simulation of Natural Convection and Radiation Heat Transfer in 2d Enclosure on Hybrid Grids 显示文摘 | Ming Pingjian Zhang Wenping | 2012 | Numerical Heat Transfer Part B2012，59，： | 1 |
| 9 | Exploring the in- fluence of lake water chemistry on chlorophyll a: a multivari- ate statistical model analysis 显示文摘 | Yong Liu Huaicheng Guo Pingjian Yang | 2010 | Ecological Modelling2010，221，： | 1 |
| 10 | Numerical simulation of natural convection and radiation heat transfer in 2D en- closure on hybrid grids 显示文摘 | MING Pingjian ZHANG Wenping | 2012 | Numerical Heat Transfer: Part B2012，59，： | 1 |
| 11 | Optimal Land-Use Management for Surface Source Water Protection Under Uncertainty: A Case Study of Songhuaba Watershed (Southwestern China)显示文摘 | Yong Liu Yajuan Yu Huaicheng Guo Pingjian Yang | 2009 | Water Resources Management2009，，10： | 1 |
| 12 | The definition,source,manifestation and assessment of unintended effects in genetically modified plants显示文摘 | DENG Pingjian ZHOU Xiangyang YANG Dongyan | 2008 | Journal of the Science of Food and Agriculture2008，88，14： | 1 |
| 13 | An Unstructured Finite Volume Method for Tran- sient Heat Conduction Analysis of Multilayer Functionally Graded Materials with Mixed Grids 显示文摘 | GONG Jingfeng XUAN Lingkuan MING Pingjian | 2013 | Numerical Heat Transfer Part B2013，63，： | 1 |
| 14 | A new automatic oceanic mesoscale eddy detection method using satellite altimeter data based on density clustering显示文摘The mesoscale eddy is a typical mesoscale oceanic phenomenon that transfers ocean energy. The detection and extraction of mesoscale eddies is an important aspect of physical oceanography, and automatic mesoscale eddy detection algorithms are the most fundamental tools for detecting and analyzing mesoscale eddies. The main data used in mesoscale eddy detection are sea level anomaly(SLA) data merged by multi-satellite altimeters' data.These data objectively describe the state of the sea surface height. The mesoscale eddy can be represented by a local equivalent region surrounded by an SLA closed contour, and the detection process requires the extraction of a stable closed contour structure from SLA maps. In consideration of the characteristics of mesoscale eddy detection based on SLA data, this paper proposes a new automatic mesoscale eddy detection algorithm based on clustering. The mesoscale eddy structure can be extracted by separating and filtering SLA data sets to separate a mesoscale eddy region and non-eddy region and then establishing relationships among eddy regions and mapping them on SLA maps. This paper overcomes the problem of the sensitivity of parameter setting that affects the traditional detection algorithm and does not require a sensitivity test. The proposed algorithm is thus more adaptable. An eddy discrimination mechanism is added to the algorithm to ensure the stability of the detected eddy structure and to improve the detection accuracy. On this basis, the paper selects the Northwest Pacific Ocean and the South China Sea to carry out a mesoscale eddy detection experiment. Experimental results show that the proposed algorithm is more efficient than the traditional algorithm and the results of the algorithm remain stable. The proposed algorithm detects not only stable single-core eddies but also stable multi-core eddy structures. | Jitao Li Yongquan Liang Jie Zhang Jungang Yang Pingjian Song Wei Cui | 2019 | Acta Oceanologica Sinica2019，38，5： | 1 |
| 15 | BRI creates new drivers for common development between China and Nigeria显示文摘China and Nigeria have gained new drivers for common development as Africa’s largest economy formally joined the Belt and Road Initiative(BRI)in 2018.Bilateral cooperation will enjoy broad prospects under the BRI,which will further the already close bilateral economic relations.China customs data show that China-Nigeria trade volume hit USD15.3 billion in 2018,up 10.8%year-on-year. | Zhou Pingjian | 2019 | 一带一路报道2019，，2： | 0 |
| 16 | LEARNING TO LEARN:A MUST COURSE FOR COLLEGE STUDENTS显示文摘This paper briefly accounts a course called'AGuide to English Learning Strategies',conducted bythe authors for the English major freshmen at theiruniversity.Its main goal was to raise the learners’'awareness of strategy use'and help the learnersmake better use of some learning strategies.It tackledsome common problems which often make Chineselearners of English less efficient in their learning.Sug-gestions are put forward in the course evaluation,concerning making it more practical and beneficial forthe learners. | Zheng Jianfeng Guo Pingjian Shanxi Teachers University | 2000 | Chinese Journal of Applied Linguistics2000，23，4： | 0 |
| 17 | Applications Of CBERS Data In Oceanic Research显示文摘The CBERS series satellite data has been widely used by the First Institute of Oceanography,State Oceanic Administration (SOA) for the studies related to the monitoring of coral islands, | Li Xiaomin Zhang Jie Ma Yi Song Pingjian | 2009 | Aerospace China2009，10，4： | 0 |
| 18 | Single-cell Transcriptome Study as Big Data显示文摘The rapid growth of single-cell RNA-seq studies(sc RNA-seq) demands efficient data storage, processing, and analysis. Big-data technology provides a framework that facilitates the comprehensive discovery of biological signals from inter-institutional sc RNA-seq datasets. The strategies to solve the stochastic and heterogeneous single-cell transcriptome signal are discussed in this article. After extensively reviewing the available big-data applications of next-generation sequencing(NGS)-based studies, we propose a workflow that accounts for the unique characteristics of sc RNA-seq data and primary objectives of single-cell studies. | Pingjian Yu Wei Lin | 2016 | Genomics, Proteomics & Bioinformatics2016，14，1： | 0 |
| 19 | NUMERICAL SIMULATION OF STRESS WAVE PROPAGATION WITH UNSTRUCTURED FINITE VOLUME TIME DOMAIN METHOD显示文摘An unstructured finite volume time domain method (UFVTDM) is proposed to simulate stress wave propagation. The original variables of displacement and stress are solved based on the dynamic equilibrium equations. An Euler explicit and unstructured finite volume method is used for time and spacial terms respectively. The displacements are stored on the cell vertex and a vertex based finite volume is formed with the integral surface and the stress is assumed as uniform in the cell. This is some similar with the stager grid method in computational fluid dynamics. Several cases are used to show the capability of the algorithm. | Pingjian Ming 1 Lingkuan Xuan Wenping Zhang (College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China) | 2011 | Acta Mechanica Solida Sinica2011，24，S1： | 0 |
| 20 | On eco-planning for an eco-demonstration park (EDP) and sustainability-Case study of the Luhua EDP in the Chongming Island of Shanghai,China显示文摘Thebackground,concept,connotation,principles,andmethodsofeco-planningforanEco-Demonstration Park(EDP)and sustainability were examined based on a case study of the Luhua EDP in the Chongming Island of Shanghai,China,which is an important part of Shanghai Eco-city planning and construction in the 21st century.By analyzing natural,social and economic conditions,calculating population using the land capacity eco-model,eco-function zoning,and eco-construction,an innovative eco-industrial structure and technical chain were formulated.A comprehensive eco-planning scheme for the EDP was proposed,including planning and management strategies for subsystems of efficient industry,good quality human settlement,high standard eco-construction and eco-tourism as well as effective environmental protection and attractive landscape.The EDP should be an area with coordinated and sustainable economic,social and environmental subsystems.Eco-planning for the EDP should be a very important part of eco-city planning and sustainability.The paper aims to set up a theoretical framework and practical basis for eco-planning and promoting harmony between human and nature. | Xiangrong WANG Yi YONG Shixiong WANG Hao ZHANG Hing Hon HO Pingjian WANG Shoubing WANG Weizhen CHEN | 2008 | Frontiers of Environmental Science & Engineering2008，2，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员