|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Integrated Power Generation Scheduling Compilation Method for Large-scale Small Hydropower Station Group显示文摘针对小水电无序管理,弃水、窝电现象严重,水资源浪费问题突出的现状,设计省地一体化小水电发电计划编制方法。该方法规范了小水电计划编制流程,对发电计划实行分级制作与管理,增加了输电断面安全校核环节,并给出了超限断面计划调整方法,通过建议计划上报一输电断面校核一计划协调发布的闭环方式有效提高了发电计划的准确性和可操作性。该方法目前已应用于云南电网小水电管理系统,方法的科学性与有效性得到了实际工程的验证。 | LI Shushan LIAO Shengli LI Gang CHENG Chuntian CAI Huaxiang LI Xiufeng | 2012 | 中国电机工程学报2012，32，13： | 15 |
| 2 | Clustering mechanism for electric tomography imaging显示文摘Electrical tomography(ET) imaging,developed in the 1980s,has attracted much industrial and research attentions owing to its low cost,quick response,lack of radiation exposure,and non-intrusiveness compared to other tomography modalities.However,to date applications thereof have been limited owing to its low imaging resolution.The issue with space resolution in existing ET imaging reconstruction methods is that they employ a mathematical approach based on an ill-posed equation with inconsistent solutions.In this paper,we propose a novel ET imaging method based on a data-driven approach.By recovering the cluster structures hidden in the ET imaging process followed by the application of a fuzzy clustering algorithm to identify the cluster structures,there is no need to study the ill-posed mathematical formulation.The proposed method has been tested by means of three experiments,including image reconstructions of a human lung image and plastic rode shape,as well as two simulations executed on the Comsol platform.The results show that the proposed method can reconstruct ET images with much higher space resolution more quickly than the existing algorithms. | YUE ShiHong WUTeresa CUI LiJun WANG HuaXiang | 2012 | Science China(Information Sciences)2012，55，12： | 9 |
| 3 | An unsupervised grid-based approach for clustering analysis显示文摘In recent years, the growing volume of data in numerous clustering tasks has greatly boosted the existing clustering algorithms in dealing with very large datasets. The K-means has been one of the most popular clustering algorithms because of its simplicity and easiness in application, but its effciency and effectiveness for large datasets are often unacceptable. In contrast to the K-means algorithm, most existing grid-clustering algorithms have linear time and space complexities and thus can perform well for large datasets. In this paper, we propose a grid-based partitional algorithm to overcome the drawbacks of the K-means clustering algorithm. This new algorithm is based on two major concepts: 1) maximizing the average density of a group of grids instead of minimizing the minimal square error which is applied in the K-means algorithm, and 2) using grid- clustering algorithms to thoroughly reformulate the object-driven assigning in the K-means algorithm into a new grid-driven assigning. Consequently, our proposed algorithm obtains an average speed-up about 10-100 times faster and produces better partitions than those by the K-means algorithm. Also, compared with the K-means algorithm, our proposed algorithm has ability to partition any dataset when the number of clusters is unknown. The effectiveness of our proposed algorithm has been demonstrated through successfully clustering datasets with different features in comparison with the other three typical clustering algorithms besides the K-means algorithm. | YUE ShiHong WANG JeenShing TAO Gao WANG HuaXiang | 2010 | Science China(Information Sciences)2010，53，7： | 7 |
| 4 | A Novel Unsupervised Two-Stage Technique in Color Image Segmentation显示文摘A new unsupervised two-stage method for color image segmentation is proposed. The method contains coarse segmentation and delicate segmentation. In coarse segmentation, we adaptively choose a gray channel from CIE-lab color space. The Otsu method combined with a refinement to its threshold is applied to get global optimal segmentation. In delicate segmentation, a narrowband based procedure is applied to get more accurate contour of the object and local optimal segmentation is achieved. Our method finally balance the global optimal and the local optimal. The proposed method does not need initial contours or initial labels, thus it is more robust in certain applications. Experimental results of our method in MSRA1000 database show that our method is robust in segmenting objects and backgrounds when possessing weakly heterogeneous color. Our method firstly achieves global optimal and then achieves local optimal which draws a new and prospective outlook for segmenting color images. | LONG Peng LU Huaxiang WANG An | 2018 | Chinese Journal of Electronics2018，27，2： | 6 |
| 5 | Athermal scheme based on resonance splitting for silicon-on-insulator microring resonators显示文摘A novel athermal scheme utilizing resonance splitting of a dual-ring structure is proposed.Detailed design and simulation are presented,and a proof of concept structure is optimized to demonstrate an athermal resonator with resonance wavelength variation lower than 5 pm∕K within 30 K temperature range. | Qingzhong Deng Xinbai Li Zhiping Zhou Huaxiang Yi | 2014 | Photonics Research2014，2，2： | 5 |
| 6 | Microelectronics-embedded channel bridging and signal regeneration of injured spinal cords显示文摘Due to the dificulty in spinal cord regeneration with biological methods,the microelectronic neural bridge,a new concept based on microelectronic technology,is presented.The microelectronic system has been realized in the forms of hybrid and integrated circuits.The integrated circuits forneural signal detection,stimulation,and regeneration are realized in a CMOS process.In animal experiments with 100 toads,48 rats,and 3 rabbits,nerve signals have been successfully detected from spinal cords and sciatic nerves,and functional electrical stimulation has been carried out for spinal cords and sciatic nerves.When the microelectronic system is bridged between the controlling and stimulated nerve,the relevant motion of legs and nerve signal waveforms,which are stimulated by the evoked or spontaneous nerve signal through such a system,have been observed.Therefore,the feasibility of the presented method was demonstrated. | Zhigong Wang Xiaosong Gu Xiaoying Lǔ Zhenglin Jiang Wenyuan Li Guangming Lǔ Yufeng Wang Xiaoyan Shen Xintai Zhao Huiling Wang Zhenyu Zhang Hongmei Shen Yang Wu Weixing Shen Jingyang Zhang Dong Chen Xiaoyi Mao Huaxiang Shen | 2009 | Progress in Natural Science:Materials International2009，19，10： | 5 |
| 7 | Cd3(C3N3S3)2 coordination polymer/graphene nanoarchitectures for enhanced photocatalytic H2O2 production under visible light显示文摘For a long time, there has been global concern over the environment and energy problems. Recently, the problems, which have brought about serious effect on the global living condition, have been in the ‘‘spotlight' and given impetus to the universal's efforts to head for the same direction: stem the worst warming and strive for the renewable energy source. Hydrogen peroxide(H_2O_2) is undoubtedly a good choice,which holds the promise as a clean, efficient, safe and transferrable energy carrier. Octahedral coordination polymer, Cd_3(C_3N_3S_3)_2, was found to be a robust photocatalyst for H_2O_2 generation under visible light irradiation. To further improve the H_2O_2 generation efficiency, adhering the octahedron to reduced graphene(rGO) was applied as the strategy herein. The study shows that by adhering Cd_3(C_3N_3S_3)_2to rGO, the formation of H_2O_2 is 2.5-fold enhanced and its deformation is concurrently suppressed. This work not only demonstrates the effectiveness of adhering Cd_3(C_3N_3S_3)_2polymer to rGO for the improvement of the polymer's photocatalytic performance, but also proposes a general way for the fabrication of graphene/coordination compound hybrids for maximizing their synergy. | Jie Xu Zhenye Chen Hongwen Zhang Guibin Lin Huaxiang Lin Xuxu Wang Jinlin Long | 2017 | Science Bulletin2017，62，9： | 4 |
| 8 | The Formation Control of Multi-agent Systems on a Circle显示文摘This paper investigates the formation control of a class of multi-agent systems moving on a circle, whose topology is a cyclic graph, and presents several new results for the following two cases: Case I, the agents with single-integrator kinematics,and Case II, the agents with double-integrator kinematics. Firstly,for Case I, two control protocols are proposed under which the multiagent systems keep a uniformly-spaced formation. Secondly,we study Case II, and a control protocol is designed for this case, then the stability of the formation is proved. Finally, three simulations are studied by using our presented results. The study of illustrative examples with simulations shows that our results as well as designed control protocols work very well in studying the formation control of this class of multi-agent systems. | Qiang Wang Yuzhen Wang Huaxiang Zhang | 2018 | IEEE/CAA Journal of Automatica Sinica2018，5，1： | 4 |
| 9 | Online monitoring of gas-solid two-phase flow using projected CG method in ECT image reconstruction显示文摘Electrical capacitance tomography(ECT)is a promising technique for multi-phase flow measurement due to its high speed,low cost and non-intrusive sensing.Image reconstruction for ECT is an inverse problem of finding the permittivity distribution of an object by measuring the electrical capacitances between sets of electrodes placed around its periphery.The conjugate gradient(CG)method is a popular image reconstruction method for ECT,in spite of its low convergence rate.In this paper,an advanced version of the CG method,the projected CG method,is used for image reconstruction of an ECT system.The solution space is projected into the Krylov subspace and the inverse problem is solved by the CG method in a low-dimensional specific subspace.Both static and dynamic experiments were carried out for gas-solid two-phase flows.The flow regimes are identified using the reconstructed images obtained with the projected CG method.The results obtained indicate that the projected CG method improves the quality of reconstructed images and dramatically reduces computation time,as compared to the traditional sensitivity,Landweber,and CG methods.Furthermore,the projected CG method was also used to estimate the important parameters of the pneumatic conveying process,such as the volume concentration,flow velocity and mass flow rate of the solid phase.Therefore,the projected CG method is considered suitable for online gas-solid two-phase flow measurement. | Qi Wang Chengyi Yang Huaxiang Wang Ziqiang Cui Zhentao Gao | 2013 | Particuology2013，11，2： | 4 |
| 10 | An Angle Structure Descriptor for Image Retrieval显示文摘This paper presents an efficient image feature representation method, namely angle structure descriptor(ASD), which is built based on the angle structures of images. According to the diversity in directions, angle structures are defined in local blocks. Combining color information in HSV color space, we use angle structures to detect images. The internal correlations between neighboring pixels in angle structures are explored to form a feature vector. With angle structures as bridges, ASD extracts image features by integrating multiple information as a whole, such as color, texture, shape and spatial layout information. In addition, the proposed algorithm is efficient for image retrieval without any clustering implementation or model training. Experimental results demonstrate that ASD outperforms the other related algorithms. | Meng Zhao Huaxiang Zhang Lili Meng | 2016 | China Communications2016，13，8： | 3 |
| 11 | Growth mechanism of palladium clusters on rutile TiO_2 (110) surface显示文摘Oxide-supported transition metal systems have been the subject of enormous interest due to the improvement of catalytic properties relative to the separate metal.Thus in this paper,we embark on a systematic study for Pd n (n=1-5) clusters adsorbed on TiO2 (110) surface based on DFT-GGA calculations utilizing periodic supercell models.A single Pd adatom on the defect-free surface prefers to adsorb at a hollow site bridging a protruded oxygen and a five-fold titanium atom along the [110] direction,while Pd dimer is located on the channels with the Pd-Pd bond parallel to the surface.According to the transition states (TSs) search,the adsorbed Pd trimer tends to triangular growth mode,rather than linear mode,while the Pd4 and Pd5 clusters prefer three-dimensional (3D) models.However,the oxygen vacancy has almost no influence on the promotion of Pd n cluster nucleation.Additionally,of particular significance is that the Pd-TiO2 interaction is the main driving force at the beginning of Pd nucleation,whereas the Pd-Pd interaction gets down to control the growth process of Pd cluster as the cluster gets larger.It is hoped that our theoretical study would shed light on further designing high-performance TiO2 supported Pd-based catalysts. | Weina Zhao Huaxiang Lin Yi Li Yongfan Zhang Xin Huang Wenkai Chen | 2012 | Journal of Natural Gas Chemistry2012，21，5： | 3 |
| 12 | Consensus for high-order multi-agent systems with communication delay显示文摘In this study, consensus problem for general high-order multi-agent systems with communication delay is investigated. Given the unstable agent dynamics and a known communication delay, two consensus protocols are designed to guarantee consensus over undirected network. By jointly researching the effects of agent dynamics and network topology, allowable delay bounds depending on the maxima of concave functions are easy to calculate. Especially, the maximum delay bound is derived when the network topology is completely connected. The main approach for the same involves designing the control gains on the basis of the solution of a parametric algebraic Riccati equation. Finally, the theoretical results are demonstrated via numerical simulations. | Zhenhua WANG Huanshui ZHANG Minyue FU Huaxiang ZHANG | 2017 | Science China(Information Sciences)2017，60，9： | 3 |
| 13 | lncRNAX-inactive-specific transcript is a potential biomarker related to changes in CD4+T cell levels in systemic lupus erythematosus显示文摘Background:Systemic lupus erythematosus(SLE)is a particularly heterogeneous autoimmune disease.This study was intended to clarify the correlations between X-inactive-specific transcript(XIST)expression and SLE clinical features and the contribution of XIST to SLE pathogenesis at the transcriptome level.Methods:XIST expression in 79 SLE patients,14 rheumatoid arthritis patients,and 23 healthy controls was determined by quantitative polymerase chain reaction.The Benjamini and Hochberg adjusted method and multivariate linear regression were applied to correct p-values and adjust confounding factors,respectively.Bioinformatic methods were used to explore the function and regulatory mechanism of XIST.Results:XIST was significantly elevated in peripheral blood mononuclear cells and CD4^(+)T cells from SLE patients compared with the levels in healthy controls and had potential diagnostic value for SLE.Notably,XIST expression was positively correlated with the SLE disease activity index and significantly reduced after effective treatment.Moreover,SLE patients with high XIST expression tended to have elevated levels of CD4^(+)T cells,but reduced levels of NK cells.Bioinformatic analyses suggested that XIST may regulate OLFM4 and CEACAM8 expression by acting as a spongy body for miR-20a,miR-92a,miR-106a,and miR-449a.Furthermore,CEACAM8 was significantly upregulated in CD4^(+)T cells from SLE patients and significantly positively correlated with XIST expression.Conclusions:lncRNA XIST,a potential diagnostic and therapeutic biomarker for SLE,is involved in the change of immune cell balance in the peripheral blood of SLE patients.Mechanistically,XIST may regulate the miR-17-92-CEACAM8 axis to achieve this in CD4^(+)T cells. | Qi Cheng Xin Chen Jieying Xu Mo Chen Peiyu Zhang Huaxiang Wu Yan Du | 2022 | Rheumatology & Autoimmunity2022，2，3： | 2 |
| 14 | An image reconstruction algorithm of EIT based on pulmonary prior information显示文摘Using a CT scan of the pulmonary tissue,a human pulmonary model is established combined with the structure property of the human lung tissue using the software COMSOL.Combined with the conductivity contribution information of the human tissue and organ,an image reconstruction method of electrical impedance tomography based on pulmonary prior information is proposed using the conjugate gradient method.Simulation results show that the uniformity index of sensitivity distribution of the pulmonary model is 15.568,which is significantly reduced compared with 34.218 based on the round field.The proposed algorithm improves the uniformity of the sensing field,the image resolution of the conductivity distribution of pulmonary tissue and the quality of the reconstruction image based on pulmonary prior information. | Huaxiang WANG Li HU Jing WANG Lu LI | 2009 | Frontiers of Electrical and Electronic Engineering in China2009，4，2： | 2 |
| 15 | jiaqiang he chuangxin shehui guanli de fazhi jianshe yanjiu(A Study on Legal Rule Construction of Strengthening and Innovating Social Management)显示文摘 | Gu Huaxiang | | 0，，： | 1 |
| 16 | lun dangdai zhongguo fazhan jinbu de gengben zhidu(A Discussion on the Basic System for Modern China's Development and Progress-on Several Vital Issues Related to the System of Socialism with Chinese Characteristics)显示文摘 | Gu Huaxiang | | 0，，06： | 1 |
| 17 | RWO-Sampling: a random walk over-sampling approach to imbalanced data classification显示文摘 | ZHANG Huaxiang LI Mingfang | 2014 | Information fusion2014，20，： | 1 |
| 18 | Preparation of the doped TiO2 film photocatalyst and its bactericid-al mechanism显示文摘 | Liu Ping Lin Huaxiang Fu Xianzhi | 1995 | Chinese J Catal1995，20，3： | 1 |
| 19 | Standardization of disk diffusion test and its clinical significance for susceptibility testing of metronidazole against Helicobacter pyloni, antimierobial agents and chemotherapy显示文摘 | Huaxiang X Conor TK Shona B | 1994 | 38 (10) :2357 - 23611994，38，10： | 1 |
| 20 | Optimum design of the structure of the electrode for a medical EIT system显示文摘 | Wang Huaxiang Wang Chao Yin Wuliang | 2001 | Meas Sci Tech2001，12，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员