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Developing Mechanism of Rubber-tea-chicken Agro-forestry Model in Tropical Area of China

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Chinese Journal of Population,Resources and Environment 2012年第3期10卷 100-106页

作者： meng qingyan Miao Zewei Wang Zhaoqian Beijing Normal University Beijing 100875China Institute of Remote Sensing Applications Chinese Academy of SciencesBeijing100101China Dpartment of Agricultural and Biological Engineering University of Illinois at Urbana-ChampaignUrbanaIL 61801the United States Agro-Ecology Research Institute Zhejiang UniversityHangzhou Zhejiang 310029China

As a typical tropical agro-forestry ecosystem in Wenchang, Hainan Province, China, rational mechanisms of the rubber-tea-chicken eco-agricultural model were studied with the Solow technological level index, stability indicator, harmonizing coefficient, grey corretation coefficient and production dominance. This study focused on rational hierarchical structure, the limiting factors and optimal strategies of the model development based on model structure, resource conditions and external market demands. Results showed that rational mechanism of the rubber-tea-chicken ecosystem model mainly included technological contributions, leverage function of dominance component （livestock husbandry）, stability of the model structure and harmony of its components, the model dominant product＇s market demand and government＇s supporting policies. The contributions of fund, technology, information and talent resources played an important role in improving sustainability and productivity of the agro-forestry model.

关键词： eco-agricultural model the Solow technological levelindex stability indicator harmonizing coefficient grey correlationcoefficient

Characteristic difference analysis and transfer parameter determination for different satellites to detect NDVI values

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Science China Earth Sciences 2012年第5期55卷 816-823页

作者： LI Li GU XingFa YE ZeTian YU Tao meng qingyan WANG YuXi State Key Laboratory of Remote Sensing Science the Institute of Remote Sensing Applications of Chinese Academy of SciencesBeijing 100101China Chinese Academy of Surveying and Mapping Beijing 100039China Anhui Institute of Optics and Fine Mechanics Chinese Academy of SciencesHefei 230031China

Here we propose a new method of NDVI difference analysis and NDVI difference correction for multi-sensors to detect *** method integrate PROSPECT model,SAIL model and MODTRAN atmospheric radioactive transfer model to simulate the remote sensing signals of different satellites for both NDVI difference analysis and correction without using real satellite *** effects of both the sensors' spectral responses and atmospheric condition are simulated,and the differences among NDVI values derived from thirty different satellites are analyzed *** on the conversions of NDVI values among different satellites,through linear regression analysis,we estimate the transfer parameters between any two different satellite NDVI values,and present the lookup tables of transfer parameters under the atmospheric conditions of three surface visibility range values (10,23 and 50 km).The proposed method is useful for NDVI applications and analyses for multi-sensors.

关键词： NDVI-detecting remote sensing signal simulation spectral response difference analysis NDVI transfer parameter

A Research on the Online and Offline Blended Teaching Mode of College English Based on the Output-Oriented Method

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Journal of Contemporary Educational Research 2022年第7期6卷 12-17页

作者： qingyan meng Harbin Huade University Harbin 150025Heilongjiang ProvinceChina

Under the background and premise of higher education reform,the output-oriented method has established a scientific teaching concept for college English teaching and applied the integrated teaching ideology of learning and application to college English teaching,so as to improve the teaching *** on the output-oriented teaching method,this paper analyzes and studies the online and offline blended teaching mode.

关键词： Output-oriented method College English Online and offline Blended teaching

The Application of Pragmatic Theory in College English Teaching

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Journal of Contemporary Educational Research 2021年第3期5卷 87-90页

作者： qingyan meng Harbin Huade University Harbin 150025China

This paper briefly summarizes the relevant theories of pragmatics,analyzes the importance of pragmatics in College English education,probes into the application of pragmatics in College English education,and points ou... 详细信息

关键词： Pragmatics University education English teaching Application research

Classification of hyperspectral remote sensing images using frequency spectrum similarity

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Science China(Technological Sciences) 2013年第4期56卷 980-988页

作者： WANG Ke GU XingFa YU Tao meng qingyan ZHAO LiMin FENG Li Institute of Remote Sensing Applications Chinese Academy of SciencesState Key Laboratory of Remote Sensing Science Institute of Regional Development Planning University of Stuttgart

An algorithm of hyperspectral remote sensing images classification is proposed based on the frequency spectrum of spectral *** spectral signature of each pixel in the hyperspectral image is taken as a discrete signal,and the frequency spectrum is obtained using discrete Fourier *** discrepancy of frequency spectrum between ground objects' spectral signatures is visible,thus the difference between frequency spectra of reference and target spectral signature is used to measure the spectral *** distance is introduced to increase the contribution from higher frequency ***,the number of harmonics involved in the proposed algorithm is determined after analyzing the frequency spectrum energy cumulative distribution function of ground *** order to evaluate the performance of the proposed algorithm,two hyperspectral remote sensing images are adopted as experimental *** proposed algorithm is compared with spectral angle mapper (SAM),spectral information divergence (SID) and Euclidean distance (ED) using the product accuracy,user accuracy,overall accuracy,average accuracy and Kappa *** results show that the proposed algorithm can be applied to hyperspectral image classification effectively.

关键词： hyperspectral image spectral similarity frequency spectrum feature remote sensing classification

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Satellite detection of IR precursors using bi-angular advanced along-track scanning radiometer data:a case study of Yushu earthquake

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Earthquake Science 2015年第1期28卷 25-36页

作者： Pan Xiong Xuhui Shen Xingfa Gu qingyan meng Yaxin Bi Liming Zhao Yanhua Zhao Yan Li Jianting Dong Institute of Earthquake Science China Earthquake Administration Intitute of Remote Sensing Applications and Digital Earth Chinese Academy of Sciences School of Computing and Mathematics University of UlsterNewtownabbey Co. Beijing Institute of Space Mechanics and Electricity

The paper has developed and proposed a syn- thesis analysis method based on the robust satellite data analysis technique （RST） to detect seismic anomalies within the bi-angular advanced along-track scanning ra- diometer （AATSR） gridded brightness temperature （BT） data based on spatial/temporal continuity analysis. The proposed methods have been applied to analyze the Yushu （Qinghai, China） earthquake occurred on 14th April 2010, and a full AATSR data-set of 8 years data from March 2003 to May 2010 with longitude from 91~E to 101°E and latitude from 28°N to 38°N has been analyzed. Combining with the tectonic explanation of spatial and temporal continuity of the abnormal phenomena, the analyzed results indicate that the infrared radiation anomalies detected by the AATSR BT data with nadir view appear and enhance gradually along with the development and occurring of the earthquake, especially along the Ganzi-Yushu fault, Nu River fault and Jiali-Chayu fault; more infrared anomalies along the earthquake fault zone （Lancangjiang fault and Ning Karma Monastery-Deqin fault） are detected using the proposed synthesis analysis method, which can also characterize the activity of seismic faults more precisely.

关键词： Seismic monitoring Infrared multi-angleEarthquake infrared radiation anomalies

Multi-parameters of Thermal Infrared Remote Sensing Anomalies of the Earthquake

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Earthquake Research in China 2016年第4期30卷 500-512页

作者： Lu Xian meng qingyan Gu Xingfa Zhang Xiaodong Xiong Pan Ma Weiyu Xie Tao China Earthquake Networks Center China Earthquake Administration Institute of Remote Sensing and Digital Earth China Academy of Sciences Institute of Earthquake Science China Earthquake Administration

Temporal and spatial anomalies associated with the Yushu earthquake, including the Outgoing Longwave Radiation( OLR), the Land Surface Temperature( LST) and surface temperature from the National Center for Environmental Prediction( NCEP) are studied using thermal infrared remote sensing data in this paper. All results confirmed the previous observations of thermal anomalies in the seismic region prior to this *** the multi-parameter anomalies, the underground water temperature anomaly appeared first and lasted for the longest time; OLR anomaly,an infrared parameter which indicates the radiation characteristics of the land surface medium,was the first to be detected; LST anomalies appeared later than OLR. NCEP temperature indicates the average atmosphere temperature with a certain vertical thickness; therefore,it was the last detected anomaly. The anomalies of OLR and LST lasted for a similar time length and were all located in the south or southwest of the epicenter.

关键词： Yushu earthquake Multi-parameters Thermal anomaly

Study on Alkaloids in Fructus Hordei Germinatus

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Medicinal Plant 2018年第6期9卷 19-22页

作者： Jianheng GUO Guozhu LI qingyan meng Jizhong ZHANG School of Pharmacy Southwest Minzu University Alar First Division of Institute for Food and Drug Control Key Laboratory of Resource Protection and Utilization of Tarim Basin Xinjiang Production & Construction Ethnic Medicine Institute Southwest Minzu University

[Objectives]To isolate and analyze alkaloids in Fructus Hordei Germinatus.[Methods]The alkaloids in the Fructus Hordei Germinatus were extracted by ultrasonic technology,and analyzed by the ultra-performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS) technique.[Results] According to the mass spectrometry information,compared with the literature reports,the possible structures of seven alkaloids in the Fructus Hordei Germinatus could be *** 1,2 and 3 were organic amine alkaloids,respectively tyramine and N-methyltyramine,hordenine,compounds 4,5,6 and 7 were indole alkaloids,respectively,tryptamine,gramine,harmine,and *** alkaloids in the Fructus Hordei Germinatus were separated by preparative high performance liquid chromatography(p HPLC) technique,a compound was obtained and identified by UPLC-MS/MS and nuclear magnetic resonance(NMR) technique as hordenine.[Conclusions]This experiment is expected to lay a foundation for the development of alkaloids in the Fructus Hordei Germinatus.

关键词： Fructus Hordei Germinatus Alkaloids Ultra high performance liquid chromatography(UPLC) Mass spectrometer(MS) Preparative high performance liquid chromatography(pHPLC)

古典根源与现代路径:作为总体视域的历史社会学

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广东社会科学 2018年第6期 173-185,256页

作者：孟庆延中国政法大学社会学院

近年来,国内的社会学研究出现了历史转向的趋势,历史社会学也成为国内社会科学的研究热点而蓬勃兴起,并涌现了若干重要的研究议题。我们究竟该如何理解历史社会学?这是一门分支学科还是一种理论眼光?历史社会学究竟有哪些理论脉络与研... 详细信息

近年来,国内的社会学研究出现了历史转向的趋势,历史社会学也成为国内社会科学的研究热点而蓬勃兴起,并涌现了若干重要的研究议题。我们究竟该如何理解历史社会学?这是一门分支学科还是一种理论眼光?历史社会学究竟有哪些理论脉络与研究传统?在本文中,笔者尝试跳出既往对历史社会学的理解范畴,将其作为一种社会学的总体视域加以理解,并通过对经典社会理论的重新检讨,勾勒作为总体视域的历史社会学的古典根源与现代路径,并讨论其本土形态。并以此为基础,讨论历史社会学研究的可能路径。

关键词：历史社会学古典理论年鉴学派韦伯陈寅恪