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| 1 | Development of a surface modeling method for mapping soil properties显示文摘(HASM ) 高精确性表面建模是能被使用玷污性质插值的一个方法。在这份报纸,我们在场 HASM 的一个方法联合了地理信息让土壤性质插值(HASM-SP ) 改进精确性。把类型,陆地使用类型和父母岩石基于土壤, HASM-SP 被使用插入内推在典型红土壤玷污可得到的 P,李, pH, alkali-hydrolyzable N,全部的 K 和 Cr 多山的区域。评估 HASM-SP 的表演,我们把它的表演与作比较平常的 kriging (好) ,平常的 kriging 联合了地理信息(OK-Geo ) 并且成层 kriging (SK ) 。结果证明方法包括 HASM-SP 与地理信息结合了, OK-Geo 获得了更低的评价偏爱。HASM-SP 也看了更少的 MAE 和 RMSE 它什么时候与另外的三个方法(OK-Geo,好和 SK ) 相比。更多细节由于为土壤性质的空间变化给了突然的边界的地理信息的不同类型的联合为土壤性质在 HASM-SP 地图被介绍。因此, HASM-SP 不能仅仅减少预言错误而且能与地理信息的分发一致,它做土壤性质的空间模拟更合理。HASM-SP 让充实不仅高精确性表面当模特儿土壤性质的理论,而且在资源管理并且环境计划为申请提供了一个科学方法。 | SHI Wenjiao LIU Jiyuan DU Zhengping YUE Tianxiang | 2012 | Journal of Geographical Sciences2012，22，4： | 11 |
| 2 | Sensitivity studies of a high accuracy surface modeling method显示文摘The sensitivities of the initial value and the sampling information to the accuracy of a high accuracy surface modeling(HASM) are investigated and the implementations of this new modeling method are modified and enhanced. Based on the fundamental theorem of surface theory, HASM is developed to correct the error produced in geographical information system and ecological modeling process. However, the earlier version of HASM is theoretically incomplete and its initial value must be produced by other surface modeling methods, such as spline, which limit its promotion. In other words, we must use other interpolators to drive HASM. According to the fundamental theorem of surface theory, we modify HASM, namely HASM.MOD, by adding another important nonlinear equation to make it independent of other methods and, at the same time, have a complete and solid theory foundation. Two mathematic surfaces and monthly mean temperature of 1951–2010 are used to validate the effectiveness of the new method. Experiments show that the modified version of HASM is insensitive to the selection of initial value which is particular important for HASM. We analyze the sensitivities of sampling error and sampling ratio to the simulation accuracy of HASM.MOD. It is found that sampling information plays an important role in the simulation accuracy of HASM.MOD. Another feature of the modified version of HASM is that it is theoretically perfect as it considers the third equation of the surface theory which reflects the local warping of the surface. The modified HASM may be useful with a wide range of spatial interpolation as it would no longer rely on other interpolation methods. | ZHAO Na YUE TianXiang ZHAO MingWei DU ZhengPing FAN ZeMeng CHEN ChuanFa | 2014 | Science China Earth Sciences2014，57，10： | 9 |
| 3 | An experimental method for squealer tip flow field considering relative casing motion显示文摘Squealer tip is widely used in turbines to reduce tip leakage loss.In typical turbine environment,the squealer tip leakage flow is affected by multiple factors such as the relative casing motion and the wide range of variable incidence angles.The development of experimental methods which can accurately model the real turbine environment and influencing factors is of great significance to study the squealer tip leakage flow mechanism.In the present paper,a low-speed turbine cascade test facility which can model the relative casing motion and wide range of variable incidence angles(-25°to 55°)is built.Based on the similarity criteria,a high-low speed similarity transformation method of the turbine cascade is established by considering the thickness of the turbine blade.A combined testing method of Particle Image Velocimetry(PIV)and local pressure measurement is proposed to obtain the complex flow structures within the tip cavity.The results show that the experimental method can successfully model the relative casing motion and the wide range of variable incidence angles.The low-speed cascade obtained by the similarity transformation can model the high-speed flow accurately.The measurement technique developed can obtain the complex flow field and successfully capture the scraping vortex within the squealer tip. | Fei ZENG Jinlin DU Lin HUANG Liming XUAN Qiang ZHAO Zhengping ZOU | 2020 | Chinese Journal of Aeronautics2020，33，7： | 8 |
| 4 | A fundamental theorem for eco-environmental surface modelling and its applications显示文摘We propose a fundamental theorem for eco-environmental surface modelling(FTEEM) in order to apply it into the fields of ecology and environmental science more easily after the fundamental theorem for Earth’s surface system modeling(FTESM). The Beijing-Tianjin-Hebei(BTH) region is taken as a case area to conduct empirical studies of algorithms for spatial upscaling, spatial downscaling, spatial interpolation, data fusion and model-data assimilation, which are based on high accuracy surface modelling(HASM), corresponding with corollaries of FTEEM. The case studies demonstrate how eco-environmental surface modelling is substantially improved when both extrinsic and intrinsic information are used along with an appropriate method of HASM. Compared with classic algorithms, the HASM-based algorithm for spatial upscaling reduced the root-meansquare error of the BTH elevation surface by 9 m. The HASM-based algorithm for spatial downscaling reduced the relative error of future scenarios of annual mean temperature by 16%. The HASM-based algorithm for spatial interpolation reduced the relative error of change trend of annual mean precipitation by 0.2%. The HASM-based algorithm for data fusion reduced the relative error of change trend of annual mean temperature by 70%. The HASM-based algorithm for model-data assimilation reduced the relative error of carbon stocks by 40%. We propose five theoretical challenges and three application problems of HASM that need to be addressed to improve FTEEM. | Tianxiang YUE Na ZHAO Yu LIU Yifu WANG Bin ZHANG Zhengping DU Zemeng FAN Wenjiao SHI Chuanfa CHEN Mingwei ZHAO Dunjiang SONG Shihai WANG Yinjun SONG Changqing YAN Qiquan LI Xiaofang SUN Lili ZHANG Yongzhong TIAN Wei WANG Ying’an WANG Shengnan MA Hongsheng HUANG Yimin LU Qing WANG Chenliang WANG Yuzhu WANG Ming LU Wei ZHOU Yi LIU Xiaozhe YIN Zong WANG Zhengyi BAO Miaomiao ZHAO Yapeng ZHAO Yimeng JIAO Ufra NASEER Bin FAN Saibo LI Yang YANG John PWILSON | 2020 | Science China Earth Sciences2020，63，8： | 7 |
| 5 | Integration of rolling circle amplification and cationic conjugated polymer for the homogeneous detection of single nucleotide polymorphisms显示文摘A novel, homogeneous and sensitive assay for the detection of single nucleotide polymorphisms (SNPs) by integration of rolling circle amplification (RCA) and cationic conjugated polymer (CCP) has been developed and tested. Mutant DNA serves as the template for specifically circularizing a padlock probe (PLP) with a sequence that is complementary to the mutant DNA. Afterwards, the mutant DNA directly acts as the primer to initiate the RCA reaction in the presence of phi29 DNA polymerase that generates a long, tandem single-strand DNA product. During the RCA reaction, fluorescein-labeled dUTPs are incorporated into the RCA products. When the CCP is introduced, efficient FRET from CCP to fluorescein occurs as a result of the strong electrostatic interactions between the CCP and the DNA produced by RCA. The wild-type DNA contains a single base mismatch with PLP with the result that the PLP is not circularized, RCA is not triggered and inefficient FRET results. By measuring the change of the emission intensities of CCP and fluorescein, it was possible to detect the SNP in a homogeneous manner. The method is sensitive and specific enough to detect 0.1 pmol/L mutant DNA and to determine a mutant allele frequency as low as 2.0%. | TANG ZhiYuan CHENG YongQiang DU Qing ZHANG HongXia LI ZhengPing | 2011 | Chinese Science Bulletin2011，56，31： | 3 |
| 6 | An improved HASM method for dealing with large spatial data sets显示文摘Surface modeling with very large data sets is challenging. An efficient method for modeling massive data sets using the high accuracy surface modeling method(HASM) is proposed, and HASM_Big is developed to handle very large data sets. A large data set is defined here as a large spatial domain with high resolution leading to a linear equation with matrix dimensions of hundreds of thousands. An augmented system approach is employed to solve the equality-constrained least squares problem(LSE) produced in HASM_Big, and a block row action method is applied to solve the corresponding very large matrix equations.A matrix partitioning method is used to avoid information redundancy among each block and thereby accelerate the model.Experiments including numerical tests and real-world applications are used to compare the performances of HASM_Big with its previous version, HASM. Results show that the memory storage and computing speed of HASM_Big are better than those of HASM. It is found that the computational cost of HASM_Big is linearly scalable, even with massive data sets. In conclusion,HASM_Big provides a powerful tool for surface modeling, especially when there are millions or more computing grid cells. | Na ZHAO Tianxiang YUE Chuanfa CHEN Miaomiao ZHAO Zhengping DU | 2018 | Science China Earth Sciences2018，61，8： | 2 |
| 7 | Effect of Carbon Nanotubes on the Thermal Stability and Intumescence Flame-retar- dant polypropylene显示文摘 | Baoxian Du Zhengping Fang | 2011 | Polymer Degradation and Stabili- ty2011，96，10： | 1 |
| 8 | Flame retardant mechanism of organo-bentonite in polypropylene显示文摘 | Baoxian Du Zhenghong Guo Ping’an Song Hui Liu Zhengping Fang Yu Wu | 2009 | Applied Clay Science2009，，3： | 1 |
| 9 | A New Method of Surface Modeling and Its Application to DEM Construction 显示文摘 | YUE Tianxiang SONG Dunjiang DU Zhengping | 2007 | Geomorphology2007，91，12： | 1 |
| 10 | Homogeneous and label-free bioluminescence detection of single nnucleotide polymorphism with roiling circle amplication 显示文摘 | CHENG Yongqiang LI Zhengping DU Baoan | 2008 | The analyst2008，133，： | 1 |
| 11 | Degradable transportation systems:an integrated equilibrium model显示文摘 | Nicholson A Du Zhengping | 1997 | Transportation Research Part B1997，31，3： | 1 |
| 12 | Degradable transportation systerns:Sensitivity and reliability analysis显示文摘 | Du Zhengping Nicholson A | 1997 | Transportation Research Part B1997，31，3： | 1 |
| 13 | A New Method of Surface Modeling and Its Ap plication to DEM Construction显示文摘 | Yue Tianxiang Du Zhengping Song Dunjiang | 2007 | Geomorphology2007，91，12： | 1 |
| 14 | Effects of organo-clay and sodium dodecyl sulfonate intercalated layered double hydroxide on thermal and flame behaviour of intu- mescent flame retarded polypropylene 显示文摘 | DU Baoxian GUO Zbenghong FANG Zhengping | 2009 | Polym Degrad Stab2009，94，11： | 1 |
| 15 | A new method of surface modeling and its application to DEM construction显示文摘 | Yue Tianxiang Du Zhengping Song Dunjiang | 2007 | Geomorphology2007，91，12： | 1 |
| 16 | Effects of Organo-clay and Sodium Dodecyl Sulfonate Intercalated Layered Double Hydroxide on Thermal and Flame Beha- viour of Intumescent Flame Retarded Polypropylene显示文摘 | Baoxian Du Zhenghong Guo Zhengping Fang | 2009 | Polymer Degradation and Stability2009，94，11： | 1 |
| 17 | Effect of TiOz cathode performance on preparation of Ti by eleetro-deoxidation显示文摘 | Du Jihong Xi Zhengping Li Qingyu | 2007 | Trans Nonfer Met Soc China2007，17，： | 1 |
| 18 | A four-band index for both liquid and solid water and its applications in the Aral Sea Basin显示文摘Various investigations have been conducted to analyze the water-coverage area of the Aral Sea and the Aral Sea Basin(ASB). However, the investigations incorporated considerable uncertainty and the used water indices had misclassification problem, which made different research groups present different results. Thus we first ascertain the boundaries of the ASB, the Syr and Amu river basins as well as their upper, middle and lower reaches. Then a four-band index for both liquid and solid water(ILSW) is proposed to address the misclassification problems of the classic water indices. ILSW is calculated by using the reflectance values of the green, red, near infrared, and thermal infrared bands, which combines the normalized difference water index(NDWI) and land surface temperature(LST) together. Validation results show that the ILSW water index has the highest accuracy by far in the Aral Sea Basin. Our results indicate that annual average decline of the water-coverage area was 963 km^(2) in the southern Aral Sea, whereas the northern Aral Sea has experienced little change. In the meanwhile, permanent ice and snow in upper reach of ASB has retreated considerably. Annual retreating rates of the permanent ice and snow were respectively 6233and 3841 km^(2) in upper reaches of Amu river basin(UARB) and Syr river basin(USRB). One of major reasons is that climate has become warmer in ASB. The climate change has caused serious water deficit problem. The water deficit had an increasing trend since the 1990s and its increasing rates was 3.778 billion m^(3) yearly on average. The total water deficit was 76.967 billion m^(3) on average in the whole area of ASB in the 2010s. However, up reaches of Syr river basin(USRB), a component area of ASB, had water surplus of 25.461 billion m^(3). These conclusions are useful for setting out a sustainable development strategy in ASB. | Bing YUE Xi CHEN Saibo LI Zhengping DU John WILSON Junhui YANG Yimen JIAO Shuangyan HUANG Chenghu ZHOU | 2024 | Science China Earth Sciences2024，67，3： | 0 |
| 19 | Spatial Distribution of Parvalbumin-Positive Fibers in the Mouse Brain and Their Alterations in Mouse Models of Temporal Lobe Epilepsy and Parkinson’s Disease显示文摘Parvalbumin interneurons belong to the major types of GABAergic interneurons.Although the distribution and pathological alterations of parvalbumin interneuron somata have been widely studied,the distribution and vulnerability of the neurites and fibers extending from parvalbumin interneurons have not been detailly interrogated.Through the Cre recombinase-reporter system,we visualized parvalbumin-positive fibers and thoroughly investigated their spatial distribution in the mouse brain.We found that parvalbumin fibers are widely distributed in the brain with specific morphological characteristics in different regions,among which the cortex and thalamus exhibited the most intense parvalbumin signals.In regions such as the striatum and optic tract,even long-range thick parvalbumin projections were detected.Furthermore,in mouse models of temporal lobe epilepsy and Parkinson’s disease,parvalbumin fibers suffered both massive and subtle morphological alterations.Our study provides an overview of parvalbumin fibers in the brain and emphasizes the potential pathological implications of parvalbumin fiber alterations. | Changgeng Song Yan Zhao Jiajia Zhang Ziyi Dong Xin Kang Yuqi Pan Jinle Du Yiting Gao Haifeng Zhang Ye Xi Hui Ding Fang Kuang Wenting Wang Ceng Luo Zhengping Zhang Qinpeng Zhao Jiazhou Yang Wen Jiang Shengxi Wu Fang Gao | 2023 | Neuroscience Bulletin2023，39，11： | 0 |
| 20 | Correction:Spatial Distribution of Parvalbumin‑Positive Fibers in the Mouse Brain and Their Alterations in Mouse Models of Temporal Lobe Epilepsy and Parkinson’s Disease显示文摘In this article the wrong figure appeared as Fig.3,the figure should have appeared as shown below. | Changgeng Song Yan Zhao Jiajia Zhang Ziyi Dong Xin Kang Yuqi Pan Jinle Du Yiting Gao Haifeng Zhang Ye Xi Hui Ding Fang Kuang Wenting Wang Ceng Luo Zhengping Zhang Qinpeng Zhao Jiazhou Yang Wen Jiang Shengxi Wu Fang Gao | 2023 | Neuroscience Bulletin2023，39，11： | 0 |
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