|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Zero-sequence Circulating Current Reduction for Three-phase Three-level Modular Photovoltaic Grid-connected Systems显示文摘针对共享正、负母线和交流母线的三相三电平模块化光伏并网系统的零序环流问题,建立三电平模块化系统零序环流的等效模型,并根据激励源的不同将零序环流分成3类,提出一种共享正、负母线和中线的并联方案来抑制I类零序环流,及一种基于改进型LCL滤波器的并联方案来抑制II、III类零序环流的高频分量,和采用零序环流控制器来抑制II、III类零序环流的低频分量。最后,通过10 kW的三相三电平模块化光伏并网系统的仿真和实验,证明了零序环流模型分析和抑制方法的正确性。 | ZHANG Xing SHAO Zhangping WANG Fusheng LIU Ping REN Kangle | 2013 | 中国电机工程学报2013，33，9： | 16 |
| 2 | Study of simulation experiments on the TSR system and its effect on the natural gas destruction显示文摘The TSR process may be one of the reasons to result in the natural gas destruction in deep carbonate reservoirs. The work on this field has been the subject of much research in recent years. In this paper, thermal simulation experiments on the reaction of CH4-CaSO4 were carried out using autoclave at high temperature and high pressure. The products were charac-terized by some advanced analytical methods. The thermodynamics and kinetics were discussed and the reaction mechanism was investigated tentatively. It is found that the reaction can pro-ceed spontaneously to produce H2S, H2O and CaCO3 as the main products at the temperature range of 550―700℃ . The activation energy and geological reaction rate calculated from the ki-netic model can be compared with those from previous work. The results obtained in this paper can provide important information on the explanation of geochemical depth limit for natural gas and on the exploration of gas reservoirs. | YUE Changtao LI Shuyuan DING Kangle ZHONG Ningning | 2005 | Science China Earth Sciences2005，48，8： | 8 |
| 3 | Behavioral and olfactory responses of grasshopper hatchlings, Melanoplus sanguinipes, to plant odours and volatile compounds显示文摘Behavior and olfactory responses of grasshopper hatchlings, Melanoplus sanguinipes (F.), to odours from plant foliage and volatile compounds were tested using a glass Y-tube olfactometer and electroantennogram (EAG)techniques respectively. In single choice trials, newly hatched hoppers were much more sensitive to the odour from intact leaves and chopped foliage of ryegrass and wheat than other plants. Chopped sorghum leaves, but not stem-cut sorghum,were also significantly attractive. The orientation responses of grasshopper hatchlings to these plants were highly consistent with those of last instar hoppers and adults. When ryegrass was employed as the control, the odour from stem-cut alfalfa was more attractive. There was no significant difference in hopper orientation responses to the odours from chopped seedlings of sorghum, alfalfa, wheat or ryegrass.However, significantly more hoppers preferred the chopped ryegrass control to chopped Louisanna sage. Measurement of the EAG response of first instar hoppers to these plant odours showed that the odour of Louisanna sage elicited the greatest response amplitudes. In olfactory tests using different volatile components, Z-3-hexenol, E-3-hexenol,Z-hex-3-enyl acetate, E-2-hexenal and hexenal gave greater EAG responses than geraniol and 1-octen-3-ol. These results are also consistent with comparable data from adults. Newly hatched grasshoppers had similar EAG response profiles to plant materials and chemicals to those of adults, although the absolute EAG values of young hoppers were much lower than those of adults. Therefore, newly hatched hoppers were able to distinguish plants from an air control, and even host plants from non-host plants, and the feeding experience of hoppers probably has little influence on their subsequent ability as adults to identify and locate food plants. | KANGLe T.L.Hopkins | 2004 | Chinese Science Bulletin2004，49，2： | 8 |
| 4 | Insect population differentiation in response to enviromental thermal stress显示文摘Numerous studies reported the adaptation strategies adopted by ecthotherms to survive under environmental thermal stress. Geographic and seasonal variations in the thermal stress tolerance, which is closely associated with species’ climatic adaptation and allopatric speciation, have been extensively investigated in insects. The variation patterns suggest directional selection for species’ adaptive straits, and are used to predict the origin, distribution and dynamics of insect populations. These studies are becoming more and more important in the context of global warming. This paper discusses the process of adaptation to environmental thermal stress and the mechanisms underlying the differentiation in related adaptive straits of insect populations. | CHENBing KANGLe | 2005 | Progress in Natural Science:Materials International2005，15，4： | 7 |
| 5 | Inducing Flow Velocities to Manage Fish Reproduction in Regulated Rivers显示文摘Conservation of endangered or economic fish and control of invasive fish is a great challenge of hydraulic engineering worldwide.Flow velocity has been recognized to affect the spawning of fishes delivering drifting eggs in rivers.However,solid scientific supports and associated mechanisms to establish quantitative relations between flow velocity and fish reproduction,taking into account spawning,fertilizing,hatching,as well as surviving,are lacking.In this paper,we quantified the relationship between flow velocity and reproduction of Chinese carps through both lab and field experiments.The results showed that a minimum velocity was required to trigger Hypophthalmichthys molitrix(H.molitrix)releasing eggs,and a velocity range was preferred to sustain spawning activity.However,the embryo incubation and larvae development of H.molitrix were found to be inhibited with the increase in flow velocity.Considering the requirements of spawning and hatching,as well as larvae surviving,an optimized flow velocity processes was identified for the reproduction of H.molitrix in rivers.These findings were of great significance to the adaptive operation of reservoirs to create reasonable and precise ecological flows for managing fish reproduction,as shown by the promising results in the engineering application to the Three Gorges Reservoir. | Qiuwen Chen Jianyun Zhang Yuchen Chen Kangle Mo Jun Wang Lei Tang Yuqing Lin Lei Chen Yong Gao Wei Jiang Yuxin Zhang | 2021 | Engineering2021，7，2： | 4 |
| 6 | A new method of micro-motion parameters estimation based on cyclic autocorrelation function显示文摘Signals with sinusoidal frequency modulation(FM)are the general form of micro-Doppler signals in radar echoes from targets with micro-motions.This paper derives the cyclic autocorrelation function of a sinusoidal FM signal using its cyclostationary characteristics,and estimates the parameters of amplitude,modulation index,micro-motion period and noise power based on cyclic autocorrelation function.The estimation method is robust in noise environment when compared with conventional time-frequency analysis methods.Finally,the performances of estimation by utilizing the simulation data and darkroom measurement are shown in tables.The Monte-Carlo simulation results show that the estimator is asymptotically optimal at SNR above6 dB. | NIU Jie LI KangLe JIANG WeiDong LI Xiang KUANG GangYao ZHU HongYu | 2013 | Science China(Information Sciences)2013，56，10： | 4 |
| 7 | Online process monitoring for complex systems with dynamic weighted principal component analysis显示文摘Conventional multivariate statistical methods for process monitoring may not be suitable for dynamic processes since they usually rely on assumptions such as time invariance or uncorrelation. We are therefore motivated to propose a new monitoring method by compensating the principal component analysis with a weight approach.The proposed monitor consists of two tiers. The first tier uses the principal component analysis method to extract cross-correlation structure among process data, expressed by independent components. The second tier estimates auto-correlation structure among the extracted components as auto-regressive models. It is therefore named a dynamic weighted principal component analysis with hybrid correlation structure. The essential of the proposed method is to incorporate a weight approach into principal component analysis to construct two new subspaces, namely the important component subspace and the residual subspace, and two new statistics are defined to monitor them respectively. Through computing the weight values upon a new observation, the proposed method increases the weights along directions of components that have large estimation errors while reduces the influences of other directions. The rationale behind comes from the observations that the fault information is associated with online estimation errors of auto-regressive models. The proposed monitoring method is exemplified by the Tennessee Eastman process. The monitoring results show that the proposed method outperforms conventional principal component analysis, dynamic principal component analysis and dynamic latent variable. | Zhengshun Fei Kangling Liu | 2016 | Chinese Journal of Chemical Engineering2016，24，6： | 4 |
| 8 | Simulation experiments on the reaction system of CH_4-MgSO_4-H_2O显示文摘H2S-rich gas in carbonate reservoirs is usually attributed to thermochemical sulfate reduction (TSR). In this paper, thermal simulation experiments on the reaction system of CH4-MgSO4-H2O were carried out using autoclave at 425℃―525℃. The threshold temperature for initiating TSR is much lower than our previous studies (550 ℃ ). Properties of the reaction products were analyzed by microcoulometry, gas-chromatography (GC), Fourier transform-infrared spectrometry (FT-IR) and X-ray diffraction (XRD) methods. Thermodynamics and reaction kinetics of TSR processes were investigated on the basis of the experimental data. The results show that thermochemical reduction of magnesium sulfate with methane can proceed spontaneously to produce magnesium oxide, hydrogen sulfur, and carbon diox-ide as the main products, and high temperature is thermodynamically favorable to the reaction. Ac-cording to the reaction model, the calculated activation energy of TSR is 101.894 kJ/mol, which is lower than that by most previous studies. Mg2+ may have played a role of catalytic action in the process of TSR. The elementary steps of TSR and reaction mechanism were discussed tentatively. The study can provide important information on the explanation of geochemical depth limit for natural gas and on the generation of high H2S gas in deep carbonates reservoirs. | DING KangLe LI ShuYuan YUE ChangTao ZHONG NingNing | 2008 | Chinese Science Bulletin2008，53，7： | 3 |
| 9 | Resting-state connectivity in the default mode network and insula during experimental low back pain显示文摘Functional magnetic resonance imaging studies have shown that the insular cortex has a significant role in pain identification and information integration, while the default mode network is associated with cognitive and memory-related aspects of pain perception. However, changes in the functional connectivity between the default mode network and insula during pain remain unclear. This study used 3.0 T functional magnetic resonance imaging scans in 12 healthy subjects aged 24.8 ± 3.3 years to compare the differences in the functional activity and connectivity of the insula and default mode network between the baseline and pain condition induced by intramuscular injection of hypertonic saline. Compared with the baseline, the insula was more functionally connected with the medial prefrontal and lateral temporal cortices, whereas there was lower connectivity with the posterior cingulate cortex, precuneus and inferior parietal lobule in the pain condition. In addition, compared with baseline, the anterior cingulate cortex exhibited greater connectivity with the posterior insula, but lower connectivity with the anterior insula, during the pain condition. These data indicate that experimental low back pain led to dysfunction in the connectivity between the insula and default mode network resulting from an impairment of the regions of the brain related to cognition and emotion, suggesting the importance of the interaction between these regions in pain processing. | Shanshan Zhang Wen Wu Guozhi Huang Ziping Liu Shigui Guo Jianming Yang Kangling Wang | 2014 | Neural Regeneration Research2014，9，2： | 3 |
| 10 | Gene expression profiling under different photoperiod/temperature conditions in a photoperiod-/thermo-sensitive genic male sterile line of rice(Oryza sativa L.)显示文摘Peiai 64S is a photoperiod- and thermo- sensitive genic male sterile (PTSGMS) line of rice, which is male sterile at long day/high temperature and partial fertile at short day/low temperature. A cDNA array representing 3328 unique rice genes was used to profile the gene expression patterns in the young panicles of Peiai 64S under these two condi- tions. The statistical data showed that up to 14.60% of genes exhibited up-or down-regulated expressions in the plants at long day/high temperature compared with plants at short day/low temperature. Only four genes were up-regulated while 482 genes down-regulated. Real-time PCR with all the up-regulated and 9 randomly selected down-regulated genes confirmed the differential expressions detected by the array, indicating that the constructed cDNA array is reliable. These differently expressed genes participated in almost all cell biological responses. Analysis of up- and down-regulated genes revealed distinctive changes between the mRNA abundances of MMK1 and MMK2, both of which are analogs ofMAPK, and significant down-regulation of several transcription factors. It was suggested that changes that occurred in the MAPK signal transduction path- way might disturb the transcription control necessary for morphogenesis of pollens and corresponding phys- iological functions. | GUO Xiaoqin DONG Haitao ZHENG Kangle LUO Hongmei TAN Xuelin FANG Yongqi WANG Yanqin DENG Ye DAI Chengen LOU Yichun SHAO Jing SHI Wenqin ZHAO Dong LI Debao | 2006 | Chinese Science Bulletin2006，51，2： | 2 |
| 11 | Removal of methylene blue from aqueous solutions by chemically modified bamboo显示文摘 | Jian-Zhong Guo Bing Li Li Liu Kangle Lv | 2014 | Chemosphere2014，，： | 2 |
| 12 | Pyrite-hydrocarbon Interaction under Hydrothermal Conditions: an Alternative Origin of H_2S and Organic Sulfur Compounds in Sedimentary Environments显示文摘Sulfate rocks and organic sulfur from sedimentary organic matter are conventionally assumed as the original sulfur sources for hydrogen sulfide(H_2S) in oil and gas reservoirs. However,a few recent experiments preliminarily indicate that the association of pyrite and hydrocarbons may also have implications for H_2S generation,in which water effects and natural controls on the evolution of pyrite sulfur into OSCs and H_2S have not been evaluated. In this study,laboratory experiments were conducted from 200 to 450° C to investigate chemical interactions between pyrite and hydrocarbons under hydrothermal conditions. Based on the experimental results,preliminary mechanism and geochemical implications were tentatively discussed. Results of the experiments showed that decomposition of pyrite produced H_2S and thiophenes at as low as 330°C in the presence of water and n-pentane. High concentrations of H_2S were generated above 450°C under closed pyrolysis conditions no matter whether there is water in the designed experiments. However,much more organic sulfur compounds(OSCs) were formed in the hydrous pyrolysis than in anhydrous pyrolysis. Generally,most of sulfur liberated from pyrite at elevated temperatures was converted to H_2S. Water was beneficial to breakdown of pyrite and to decomposition of alkanes into olefins but not essential to formation of large amounts of H_2S,given the main hydrogen source derived from hydrocarbons. In addition,cracking of pyrite in the presence of 1-octene under hydrous conditions was found to proceed at 200°C,producing thiols and alkyl sulfides. Unsaturated hydrocarbons would be more reactive intermediates involved in the breakdown of pyrite than alkanes. The geochemistry of OSCs is actually controlled by various geochemical factors such as thermal maturity and the carbon chain length of the alkanes. This study indicates that the scale of H_2S gas generated in deep buried carbonate reservoirs via interactions between pyrite and natural gas should be much smaller than that of thermochemical sulfate reduction(TSR) due to the scarcity of pyrite in carbonate reservoirs and the limited amount of long-chained hydrocarbons in natural gas. Nevertheless,in some cases,OSCs and/or low contents of H_2S found in deep buried reservoirs may be associated with the deposited pyrite-bearing rock and organic matters(hydrocarbons),which still needs further investigation. | DING Kangle MEI Ping LUO Yue | 2016 | Acta Geologica Sinica(English Edition)2016，90，6： | 2 |
| 13 | An Improved ZigBee rou- ting strategy for monitoring system显示文摘 | Xiaohui Li Kangling Fang Jinguang Gu | 2008 | Intelligent Networks and In- telligent Systems2008，19，6： | 1 |
| 14 | HPLC determination related substance of diammonium glycyrrhizinate [J]显示文摘 | GAOZC LULX KANGL | | 中国煤炭工业医学杂志0，13，1： | 1 |
| 15 | Thermal,light and p H triple stimulated changes in self-assembly of a novel small molecular weight amphiphile binary system显示文摘 | Kangle J Yuming C Xiong L | 2015 | RSC Adv2015，，5： | 1 |
| 16 | Photocatalytic degradation pathway for azo dye in TiO2/UV/O3 system:Hydroxyl radical versus hole显示文摘 | Jie Sun Xin Yan Kangle Lv Shuo Sun Kejian Deng Dongyun Du | | 0，，： | 1 |
| 17 | Mapping the knowledge of international Chinese medicines treatment on type 2 diabetes:A biblimetrical study显示文摘Objective:To uncover and identify the hot topic and frontier of Chinese medicines treatment of type 2 diabetes mellitus(T2DM).Methods:Web of Science TM was searched for published articles for Chinese medicines treatment of T2DM ranging from January 1st,2002 to July 6th,2016.Knowledge maps of the international Chinese medicines treatment of T2DM are visualized by using document cooccurrence analysis and word frequency analysis(Institution and Journal),co-citation clustering analysis(Co-reference),keyword co-occurrence clustering analysis with CiteSpac III,a tool of scientometrics.Results:Universidad Nacional Autonoma de Mexico is the institution with the highest number of published papers that had been cited in this field,while China has four institutions among the top 10.The journal of the highest frequency of co-cited journal was Diabetes Care,a core one in the field.Keywords co-occurrence network was composed of 185 nodes,541 lines,and divided into 10 clusters.Co-citation network of co-reference was composed of 407 nodes,1199 lines,and divided into 20 clusters.Using Chinese medicine to improve insulin resistance and Chinese medicine research on blood glucose control are the hot topics.The frontier contains two aspects:new drugs development and application of intestinal insulin treatment and development and use of traditional Chinese medicine antidiabetic plants.Conclusion:Institutions from China still plays a major role in TCM-focused T2DM studies.The effect of TCM herbs on insulin resistance is the hot topic of the domain.Developing new TCM herbal medicine that regulates incretin effect is the domain frontier.Research on the Chinese medicines treatment of T2DM needs more high-quality evidence to support,and its mechanism requires further exploration. | Jiahui Hu Kangle Shi Qinggang Meng | 2016 | Journal of Traditional Chinese Medical Sciences2016，3，4： | 1 |
| 18 | (Bi, C and N) codoped TiO 2 nanoparticles显示文摘 | Kangle Lv Housong Zuo Jie Sun Kejian Deng Songcui Liu Xiaofang Li Duoyuan Wang | 2008 | Journal of Hazardous Materials2008，，1： | 1 |
| 19 | Wind tunnel test of snow redistribution on flat roofs显示文摘 | ZhouXY KangL Y YuanX M | 2016 | Cold Regions Science and Technology2016，127，： | 1 |
| 20 | Resveratrolinhibitshyperxia-inducedcellapoptosisthroughup-regulatingSIRT1expressioninHPAECs显示文摘 | ZhangC LiQ KangL etal | 2015 | ChineseJournalofCellularandMolecularImmunology2015，31，5： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员