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| 1 | Foliar δ^(13)C and δ^(15)N values of C_3 plants in the Ethiopia Rift Valley and their environmental controls显示文摘The foliar C and N stable isotopic compositions(δ 13C and δ 15N) and the relationships between these compositions and environmental factors of C3 plants in the Ethiopia Rift Valley were investigated. There were three distribution patterns for foliar δ 13C with mean values of ?26.7‰±0.4‰,?29.7‰± 0.6‰,and ?26.9‰± 1.2‰ in cold-moist,temperate-moist,and arid-hot environments,respectively. The δ 15N values ranged from ?1.4‰± 1.7‰ to 14.3‰± 0.1‰,with higher values under arid-hot conditions and the lowest values in plants growing at higher altitudes under cold-moist conditions. A strong negative relationship between mean annual precipitation and δ 15N explained more than half of the observed variation in the δ 15N values(r2 = 0.54,P < 0.001);a modest positive relationship was also found between δ 15N and tem-perature(r2 = 0.32,P < 0.01). A weakly positive relationship existed between δ 13C and temperature,and changes in δ 13C values with precipitation and altitude followed quadratic curves. This suggests a shift in the effects of water and heat conditions caused by altitude on carbon isotopic discrimination. | LIU XiaoHong ZHAO LiangJu GASAW Menassie GAO DengYi QIN DaHe REN JiaWen | 2007 | Chinese Science Bulletin2007，52，9： | 12 |
| 2 | Study of the tolerance of Hippochaete ramosissimum to Cu stress显示文摘We investigated the tolerance of Hippochaete ramosissimum and the changes in physiological metabolism following exposure to copper using pot experiments and analyzing plant physiology and biochemistry. The results showed that Cu tolerance in Hippochaete ramosissimum varied significantly between different populations; the tolerance of plants living in Cu polluted areas for extended periods of time exceeded that of plants living in unpolluted areas.SOD and POD activities in highly Cu tolerant plants increased noticeably following exposure to Cu. This indicates that maintaining and increasing the two kinds of protective enzyme activities are the primary foundations of plant tolerance. However, no change in CAT activity was demonstrated following Cu exposure. In summary, there existed considerable differences in physiological metabolism between different populations of Hippochaete ramosissimum following exposure to Cu. | LIU Dengyi, LI Ying, CHU Ling, WANG Guanglin & WANG Lilong Biodiversity Research Center, Anhui Normal University, Wuhu 241000, China The Provincial Key Laboratory of Conservation and Exploitation of Biological Resources in Anhui, Wuhu 241000, China | 2005 | Science China(Life Sciences)2005，48，z1： | 7 |
| 3 | Arctic sea ice bordering on the North Atlantic and inter-annual climate variations显示文摘Variations of winter Arctic sea ice bordering on the North Atlantic are closely related to climate variations in the same region. When winter North Atlantic Oscillation (NAO) index is positive (negative) anomaly phase, Icelandic Low is obviously deepened and shifts northwards (southwards). Simultaneously, the Subtropical High over the North Atlantic is also intensified, and moves northwards (southwards). Those anomalies strengthen (weaken) westerly between Icelandic Low and the Subtropical High, and further result in positive (negative) sea surface temperature (SST) anomalies in the mid-latitude of the North Atlantic, and increase (decrease) the warm water transportation from the mid-latitude to the Barents Sea, which causes positive (negative) mixed-layer water temperature anomalies in the south part of the Barents Sea. Moreover, the distribution of anomaly air temperature clearly demonstrates warming (cooling) in northern Europe and the subarctic regions (including the Barents Sea) and cooling | Bingyi Wu Ronghui Huang Dengyi Gao | 2001 | Chinese Science Bulletin2001，46，2： | 4 |
| 4 | Metal-Organic Framework Materials for Electrochemical Supercapacitors显示文摘Exploring new materials with high stability and capacity is full of challenges in sustainable energy conversion and storage systems.Metal-organic frameworks(MOFs),as a new type of porous material,show the advantages of large specific surface area,high porosity,low density,and adjustable pore size,exhibiting a broad application prospect in the field of electrocatalytic reactions,batteries,particularly in the field of supercapacitors.This comprehensive review outlines the recent progress in synthetic methods and electrochemical performances of MOF materials,as well as their applications in supercapacitors.Additionally,the superiorities of MOFs-related materials are highlighted,while major challenges or opportunities for future research on them for electrochemical supercapacitors have been discussed and displayed,along with extensive experimental experiences. | Ziwei Cao Roya Momen Shusheng Tao Dengyi Xiong Zirui Song Xuhuan Xiao Wentao Deng Hongshuai Hou Sedat Yasar Sedar Altin Faith Bulut Guoqiang Zou Xiaobo Ji | 2022 | Nano-Micro Letters2022，14，11： | 4 |
| 5 | Effect of strong carbide forming elements in hardfacing weld metal显示文摘To achieve high carbon hard-facing weld metals with both high hardness and crack resistance, strong carbide forming elements Ti, Nb and V were alloyed into the weld metals, and their effect on the formation of carbides and the matrix microstructure were studied. Electron Probe Microanalysis (EPMA), Energy Dispersive Spectroscopy(EDS) and Transmission Electron Microscopy (TEM) were adopted to investigate the microstructure, then thermodynamics of the formation of carbides was calculated and their effect on the matrix was further discussed. It is revealed that Nb, Ti and V influence strongly the distribution and existing state of carbon, inducing precipitation of carbides accompanying with the depletion of carbon in matrix. But when only V are alloyed as carbide forming element, the carbides are scarce and distributed along grain boundaries, and the hard-facing alloy is too hard, while the using of only Nb or Ti could not reinforce the weld metals effectively. The hard-facing alloy reinforced with Nb, V | ZHANG Yuanbin and REN Dengyi | 2004 | Rare Metals2004，23，1： | 2 |
| 6 | Simultaneous Localization and Mapping Technology Based on Project Tango显示文摘Aiming at the problem of system error and noise in simultaneous localization and mapping(SLAM) technology, we propose a calibration model based on Project Tango device and a loop closure detection algorithm based on visual vocabulary with memory management. The graph optimization is also combined to achieve a running application. First, the color image and depth information of the environment are collected to establish the calibration model of system error and noise. Second, with constraint condition provided by loop closure detection algorithm, speed up robust feature is calculated and matched. Finally, the motion pose model is solved, and the optimal scene model is determined by graph optimization method. This method is compared with Open Constructor for reconstruction on several experimental scenarios. The results show the number of model's points and faces are larger than Open Constructor's, and the scanning time is less than Open Constructor's. The experimental results show the feasibility and efficiency of the proposed algorithm. | XU Pei SU Kehua HONG Cheng ZHANG Dengyi | 2019 | Wuhan University Journal of Natural Sciences2019，24，2： | 2 |
| 7 | Impacts of the Kuwait Oil Fires on the Mount Oomolangma Region显示文摘 | Gao Dengyi Lu Weixiu Gao Yong-qi | 1996 | Adv Atmos Sci1996，13，2： | 1 |
| 8 | Heating of the Tibet Plateau and movements of the South Asian High during spring显示文摘 | Reiter E R Gao Dengyi | | 0，，11： | 1 |
| 9 | GCN-LSTM spatiotemporal-network-based method for post-disturbance frequency prediction of power systems显示文摘Owing to the expansion of the grid interconnection scale,the spatiotemporal distribution characteristics of the frequency response of power systems after the occurrence of disturbances have become increasingly important.These characteristics can provide effective support in coordinated security control.However,traditional model-based frequencyprediction methods cannot satisfactorily meet the requirements of online applications owing to the long calculation time and accurate power-system models.Therefore,this study presents a rolling frequency-prediction model based on a graph convolutional network(GCN)and a long short-term memory(LSTM)spatiotemporal network and named as STGCN-LSTM.In the proposed method,the measurement data from phasor measurement units after the occurrence of disturbances are used to construct the spatiotemporal input.An improved GCN embedded with topology information is used to extract the spatial features,while the LSTM network is used to extract the temporal features.The spatiotemporal-network-regression model is further trained,and asynchronous-frequency-sequence prediction is realized by utilizing the rolling update of measurement information.The proposed spatiotemporal-network-based prediction model can achieve accurate frequency prediction by considering the spatiotemporal distribution characteristics of the frequency response.The noise immunity and robustness of the proposed method are verified on the IEEE 39-bus and IEEE 118-bus systems. | Dengyi Huang Hao Liu Tianshu Bi Qixun Yang | 2022 | Global Energy Interconnection2022，5，1： | 1 |
| 10 | A largest canyon in the world--the latest development in investigations to the Brahmaputra Canyon显示文摘 | Zhang Wenjing Gao Dengyi | 1999 | Journal of Mountains1999，17，2： | 1 |
| 11 | Knowledge template based multi-perspective car recognition algorithm 显示文摘 | CAl Bo TAN Feng LU Yi ZHANG Dengyi | | Int Journal of Information Engineering and Electronic Business ZOI0 2(2)0，3845，： | 1 |
| 12 | Time-Constrained distributed program reliability analysis显示文摘 | CHENG Dengyi CHANG Mingsang SHENG Mingcheng | 1998 | Journal of Information Science and Engineering1998，14，4： | 1 |
| 13 | Unsupervised transfer learning for target detection from hyperspectral images显示文摘 | Bo Du Liangpei Zhang Dacheng Tao Dengyi Zhang | 2013 | Neurocomputing2013，，： | 1 |
| 14 | Impacts of Kuwait oil Fires on the Mount Qornolangma Region显示文摘 | Gao Dengyi Lu J Weixiu Gao Yongqi | 1996 | Adv Atrnos Sci1996，13，2： | 1 |
| 15 | Effect of strong carbide forming elements in hardfacing weld metal 显示文摘 | Zhang Yuanbin Ren Dengyi | 2003 | China welding (in Chinese)2003，33，2： | 1 |
| 16 | Patterns of vegetation succession in the process of ecological restoration on the deserted land of Shizishan copper tailings in Tongling City 显示文摘 | Wang Youbao Liu Dengyi Zhang Li | 2004 | Acta Botanica Sinica2004，46，7： | 1 |
| 17 | impacts of the Kuwait Oil Fires on the Mount Qomolangma Region显示文摘 | Gao Dengyi Lu Weixiu Gao Yongqi | 1996 | Adv Atmos Sci1996，13，： | 1 |
| 18 | New Practice of International Communication of Chinese Films under the Sight of “The Belt and Road”—— Taking the Film “Xuan Zang” as an Example显示文摘At present,“The Belt and Road” initiative has risen from the China initiative to an international consensus and has become a popular international public product and a high-profile international cooperation platform. As the soul of the “Belt and Road”, culture’s leading advantages can promote the all-round and multi-field exchanges and cooperation between China and various countries along “The Belt and Road”. As an important carrier for spreading Chinese culture, domestic films play an important role in further expanding the international communication practice of Chinese cultural influence. This paper takes the film “Xuan Zang” as an example, explores the new international communication practices of domestic films under the framework of “The Belt and Road”, sums up the new path of domestic film international communication, and looks forward to the new opportunities and bright prospects of cooperation in the field of film and television art under the framework of “The Belt and Road”. | Dengyi Wang | 2019 | Review of Educational Theory2019，2，3： | 0 |
| 19 | Holy Mountain of Qomolangmo显示文摘Qomolangmo is the 3rd Goddess in the eyes of the Tibetans, and since 1966 I have had the chance to stay there on eight occasions for a total of eight years. During this period, I was nurtured by her 'milk', breathed the fresh air, and enjoyed the hada (referring to 'flag clouds' there) that the mountain hoisted.Qomolangmo is the least contaminated place on earth. In the spring of 1975, geologist Liu Dongsheng proposed undertaking a research project entitled 'Evolution of the Environment in | GAO DENGYI | 2003 | China's Tibet2003，14，2： | 0 |
| 20 | STRUCTURAL CHANGE IN HEAT AFFECTED ZONE AND ITS INFLUENCE ON PROPERTIES OF WELDED WHITE CAST IRON显示文摘The structural change in heat affected zone(HAZ)and its influence on properties of weldedwhite cast iron have been investigated by means of thermal cycle simulation technique.Thestructure of the white cast iron at peak temperature 800℃ was examined as cementite inpearlitic matrix,of which the hardness and impact toughness are the lowest,while the struc-ture after cyclic heating at high peak temperature is mainly cementite together with twinmartensite,of which the hardness and impact toughness are rather higher.The phase bounda-ries in the structure of low hardness are smooth and regular as well as with fine precipitates.Both the cleavage and interphase fracture were revealed in the structure of low hardness,whilethe transgranular fracture was found in those areas of higher hardness. | ZOU Zengda WANG Yong REN Dengyi Shandong Polytechnic University,Jinan,China | 1991 | Acta Metallurgica Sinica(English Letters)1991，4，9： | 0 |
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