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| 1 | High-resolution Surface Relative Humidity Computation Using MODIS Image in Peninsular Malaysia显示文摘Forest fire is a serious disaster all over the world. The Fire Weather Index (FWI) System can be used in ap- plied forestry as a tool to investigate and manage all types of fire. Relative humidity (RH) is a very important parameter to calculate FWI. However, RH interpolated from meteorological data may not be able to provide precise and confident values for areas between far separated stations. The principal objective of this study is to provide high-resolution RH for FWI using MODIS data. The precipitable water vapor (PW) can be retrieved from MODIS using split window tech- niques. Four-year-time-series (2000-2003) of 8-day mean PW and specific humidity (Q) of Peninsular Malaysia were analyzed and the statistic expression between PW and Q was developed. The root-mean-square-error (RMSE) of Q es- timated by PW is generally less than 0.0004 and the correlation coefficient is 0.90. Based on the experiential formula between PW and Q, surface RH can be computed with combination of auxiliary data such as DEM and air temperature (Ta). The mean absolute errors of the estimated RH in Peninsular Malaysia are less than 5% compared to the measured RH and the correlation coefficient is 0.8219. It is proven to be a simple and feasible model to compute high-resolution RH using remote sensing data. | PENG Guangxiong LI Jing CHEN Yunhao Abdul Patah NORIZAN Liphong TAY | 2006 | Chinese Geographical Science2006，16，3： | 9 |
| 2 | Remote Sensing Monitoring of Tobacco Field Based on Phenological Characteristics and Time Series Image―A Case Study of Chengjiang County, Yunnan Province, China显示文摘Using three-phase remote sensing images of China-Brazil Earth Resources Satellite 02B (CBERS02B) and Landsat-5 TM, tobacco field was extracted by the analysis of time series image based on the different phenological characteristics between tobacco and other crops. The spectral characteristics of tobacco and corn in luxuriant growth stage are very similar, which makes them difficult to be distinguished using a single-phase remote sensing image. Field film after tobacco seedlings transplanting can be used as significant sign to identify tobacco. Remote sensing interpre- tation map based on the fusion image of TM and CBERS02B's High-Resolution (HR) camera image was used as stan- dard reference material to evaluate the classification accuracy of Spectral Angle Mapper (SAM) and Maximum Like- lihood Classifier (MLC) for time series image based on full samples test method. SAM has higher classification accu- racy and stability than MLC in dealing with time series image. The accuracy and Kappa of tobacco coverage extracted by SAM are 83.4% and 0.692 respectively, which can achieve the accuracy required by tobacco coverage measurement in a large area. | PENG Guangxiong DENG Lei CUI Weihong MING Tao SHEN Wei | 2009 | Chinese Geographical Science2009，19，2： | 8 |
| 3 | Properties of color-flavor locked strange quark matter and strange stars in a new quark mass scaling显示文摘Considering the effect of one-gluon-exchange interaction between quarks,the color-flavor locked strange quark matter and strange stars are investigated in a new quark mass density-dependent model.It is found that the color-flavor locked strange quark matter can be more stable if the one-gluon-exchange effect is included.The lower density behavior of the sound velocity in this model is different from the previous results.Moreover,the new equation of state leads to a heavier acceptable maximum mass,supporting the recent observation of a compact star mass as large as about 2 times the solar mass. | CHANG Qian CHEN ShiWu PENG GuangXiong XU JianFeng | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，9： | 3 |
| 4 | Formation blockage risk analysis of geothermal water reinjection:Rock property analysis,pumping and reinjection tests,and long-term reinjection prediction显示文摘The blockage induced by particle migration and deposition is one of the main reasons for the decrease of reinjection capacity in the porous geothermal reservoir with a low and medium temperature.In this paper,a new drilled geothermal well in Xining basin China is taken as an example to investigate the formation blockage risk due to the movable clay and sand particles in pores.The physical properties of the reservoir rocks were analyzed,a series of pumping and reinjection tests were conducted,and the longterm reinjection performance of the well was predicted by numerical simulation based on the test fitting.The results show that the geothermal reservoir rocks are argillaceous and weakly cemented sandstones with a content of movable clay and sand particles up to 0.18–23.42 wt.%.The well presented a high productivity of 935–2186 m3?d-1 at a pressure difference of 0.7–1.62 MPa in the pumping tests associated with a large amount of clay and sand particles produced out,while in the reinjection test,only a low injectivity of 240–480 m3?d-1 was observed at an injection pressure of 0.2–0.6 MPa with the clay and sand particles near the wellbore move into deep.According to the prediction,under conditions of a blockage risk,the injectivity of the well will start to decline after 100 days of injection,and in the third year,it will decrease by 59.00%–77.09%.The influence of invasion of pretreated suspended particles and scale particles can be neglected.Under conditions of a high blockage risk,the injectivity of the well will decrease significantly in the first 20–30 days,with a decline of 75.39%–78.96%.Generally,the higher the injection pressure or rate,the greater the decrease in injectivity of the well caused by particle blockage.Pump lifting is an effective measure to remove the well blockage which can be used regularly. | Liang Zhang Songhe Geng Linchao Yang Ronghua Wen Chuan He Zhen Zhao Guangxiong Qin | 2022 | Geoscience Frontiers2022，13，1： | 3 |
| 5 | Properties of strangelets in a new quark mass confinement model with one-gluon-exchange interaction显示文摘The properties of strangelets at zero temperature with a new quark model that includes both the confinement and one-gluonexchange interactions is studied in a fully self-consistent method.The charge and parameter dependence of the stability of strangelets are discussed.It is found that the one-gluon-exchange interaction lowers the energy of a strangelet,and consequently allows the strangelet to be absolutely stable.The stable strangelet radius in the present model is smaller in comparison with the absence of one-gluon-exchange interaction,and can thus be much less than that of a normal nucleus with the same baryon number,according to the strength of the confinement and one-gluon-exchange interactions. | XIA ChengJun CHEN ShiWu PENG GuangXiong | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，7： | 2 |
| 6 | Wear mechanism of aluminum-stainless steel composite conductor rail sliding against collector shoe with electric current显示文摘 | DONG Lin CHEN Guangxiong ZHU Minhao | 2007 | Wear2007，263，16： | 1 |
| 7 | Simulated headward erosion of bank gullies in the Dry-hot Valley Region of southwest China显示文摘 | Zhengan Su Donghong Xiong Yifan Dong Jiajia Li Dan Yang Jianhui Zhang Guangxiong He | 2014 | Geomorphology2014，，： | 1 |
| 8 | A self-excited vibration model based on special elastic vibration modes of friction systems and time delays between the normal and friction forces: A new mechanism for squealing noise显示文摘 | CHEN Guangxiong ZHOU Zhongrong | 2007 | Wear2007，262，11： | 1 |
| 9 | Stability analysis of a squealing vibration model with time delay显示文摘 | CHEN Guangxiong LIU Qiyue JIN Xuexsong | 2008 | Journal of Sound and Vibration2008，311，12： | 1 |
| 10 | Effect of the vibration on friction and wear behavior between the carbon strip and coppercontact wire pair显示文摘 | YANG Hongjuan CHEN Guangxiong ZHANG Saidan | 2012 | Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology2012，226，8： | 1 |
| 11 | Correlation between the wear and vibration of the contact stripin a contact wire rubbing against a contact strip with electrical current显示文摘 | YANG Hongjuan CHEN Guangxiong HU Yan | 2014 | Tribology Transactions2014，57，1： | 1 |
| 12 | Experimental study on arc ablation occurring in a contact strip rubbing against a contact wire with electrical current 显示文摘 | CHEN Guangxiong YANG Hong~uan ZHANG Weihua | 2013 | Tribology International2013，61，： | 1 |
| 13 | The Study on Error Analysis of Discretization Area in Discrete Global Grid System显示文摘 | Ming Tao Yuan Wen Peng GuangXiong Li Su Wang Zhangang | 2011 | Procedia Environmental Sciences2011，，： | 1 |
| 14 | An acetyl flavonol from Nervilia fordii ( Hance ) Schltr 显示文摘 | GuangXiong Zhou Chuan Li Lu Heng Shan Wang et al | 2009 | Journal of Asian Natural Products Research2009，11，6： | 1 |
| 15 | HYDES: A Web-based hydro turbine fault diagnosis system显示文摘 | Guangxiong Song Yongyong He Fulei Chu Yujiong Gu | 2006 | Expert Systems With Applications2006，，1： | 1 |
| 16 | Wear Mechanism of Aluminum-Stainless Steel Composite Conductor Rail Sliding Against Collector Shoe with Electric Current显示文摘 | DONG Lin CHEN Guangxiong ZHU Minhao | 2007 | Wear2007，263，16： | 1 |
| 17 | HYDES:A Web-based hydro turbine fault diagnosis system显示文摘 | SONG Guangxiong HE Yongyong CHU Fulei GU Yujiong | 2008 | Expert Systems With Applications2008，34，： | 1 |
| 18 | A finite element study on rail corrugation due to saturated creep force-induced self-excited vibration of a wheelset-rail system显示文摘 | CHEN Guangxiong ZHOU Zhongrong OUYANG Huajiang | 2010 | Journal of Sound and Vibration2010，3294，： | 1 |
| 19 | A finite element study on rail corrugation based on saturated creep force-induced selbexcited vibration of a wheelset track system显示文摘 | CHEN Guangxiong ZHOU Zhong-rong OUYANG Hua-jiang | 2010 | Journal of Sound and Vibration2010，329，22： | 1 |
| 20 | Effect of surface topography on formation of squeal under reciprocating sliding显示文摘 | CHEN Guangxiong ZHOU Zhongrong KAPSA Ph | 2002 | Wear2002，253，： | 1 |
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