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818 results on '"Zhu, Daming"'

101. Accumulative Delocalized Mo 4d Electrons to Bound the Volume Expansion and Accelerate Kinetics in Mo6S8Cathode for High-Performance Aqueous Cu2+Storage

Author

Ren, Zhiguo, Sun, Yuanhe, Lei, Qi, Zhang, Wei, Zhao, Yuanxin, Yao, Zeying, Si, Jingying, Li, Zhao, Ren, Xiaochuan, Sun, Xueping, Tang, Lin, Wen, Wen, Li, Xiaolong, Gao, Yi, He, Jianhua, and Zhu, Daming

Abstract

Electronic structure defines the conductivity and ion absorption characteristics of a functional electrode, significantly affecting the charge transfer capability in batteries, while it is rarely thought to be involved in mesoscopic volume and diffusion kinetics of the host lattice for promoting ion storage. Here, we first correlate the evolution in electronic structure of the Mo6S8cathode with the ability to bound volume expansion and accelerate diffusion kinetics for high-performance aqueous Cu2+storage. Operandosynchrotron energy-dispersive X-ray absorption spectroscopy reveals that accumulative delocalized Mo 4d electrons enhance the Mo–Mo interaction with distinctly contracting and uniformizing Mo6clusters during the reduction of Mo6S8, which potently restrain lattice expansion and release space to promote Cu2+diffusion kinetics. Operandosynchrotron X-ray diffraction and comprehensive characterizations further validate the structural and electrochemical properties induced by the Cu2+intercalation electronic structure, endowing the Mo6S8cathode a high specific capacity with small volume expansion, fast ions diffusion, and long-term cycling stability.

Published
2023
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103. A pansharpening method combining iterative filtering and NSST-NSML-PAPCNN to optimize spatial detail extraction and injection.

Author

Song, Jiawen, Zhu, Daming, Fu, Zhitao, Cheng, Feifei, Zuo, Xiaoqing, and Chen, Sijing

Subjects
*FILTERS & filtration, *INFORMATION resources, *MULTISPECTRAL imaging
Abstract

Spatial injection-based pansharpening methods are prone to spatial or spectral distortions in pansharpening images due to insufficient extraction of spatial details and a mismatch between the amount of spatial detail information injected and the required amount. To this end, this paper proposes a pansharpening method that optimizes spatial detail extraction and injection. Firstly, a method to optimize the amount of spatial detail injection is proposed, that is, to extract the high-frequency information of the image through iterative filtering and determine the optimal number of iterations based on the global analysis of the method. Then, to fully extract and combine the spatial detail information of the source image, the detailed high-frequency image extracted corresponding to the optimal iterative filtering times is decomposed by non-subsampled shearlet transform (NSST), and a new multi-scale sum-modified-Laplacian (NSML) as an external stimulus to a parameter-adaptive pulse-coupled neural network model (PAPCNN). A fusion rule based on multi-scale morphological gradients is designed to extract a small amount of detailed information for the low-frequency subband. The fused spatial detail image can be obtained by combining the fused low-frequency and high-frequency subbands and inverse NSST transformation. Finally, pansharpening can be realized by combining spatial detail image, injection coefficient, and MS image. In this paper, many experiments are carried out on the QuickBird, GeoEye-1, and WorldView-4 datasets, and quantitative and qualitative comparisons are made with eight advanced methods. Experimental results show that the method proposed in this paper can achieve better fusion results. [ABSTRACT FROM AUTHOR]

Published
2023
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110. Unveiling the mechanism of charge compensation in Li2Ru Mn1−O3 by tracking atomic structural evolution

Author

Li, Ji, primary, Liu, Hongzhou, additional, Zheng, Shun, additional, Li, Yande, additional, Zhu, Daming, additional, Sun, Fanfei, additional, Ma, Jingyuan, additional, Gu, Songqi, additional, Qiao, Panzhe, additional, Yang, Shuai, additional, Du, Xianlong, additional, Liu, Xiaosong, additional, Liu, Zhi, additional, Mei, Bingbao, additional, and Jiang, Zheng, additional

Published
2022
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111. Research on Image Denoising in edge detection Based on Wavelet Transform

Author

You Ning, Han LiBo, Zhu Daming, and Song Weiwei

Subjects
Fluid Flow and Transfer Processes, edge detection, earth_sciences_other, Process Chemistry and Technology, General Engineering, General Materials Science, wavelet function, Pratt quality factor, Instrumentation, wavelet transform, canny, Computer Science Applications
Abstract

Photographing images is used as a common detection tool during the process of bridge maintenance. The edges in an image can provide a lot of valuable information, but the detection and extraction of edge details are often affected by the image noise. This study proposes an algorithm for wavelet transform to denoise the image before edge detection, which can improve the signal-to-noise ratio of the image and retain as much edge information as possible. In this study, four wavelet functions and four decomposition levels are used to decompose the image, filter the coefficients and reconstruct the image. The PSNR and MSE of the denoised images were compared, and the results showed that the sym5 wavelet function with three-level decomposition has the best overall denoising performance, in which the PSNR and MSE of the denoised images were 23.48 dB and 299.49, respectively. In this study, the canny algorithm was used to detect the edges of the images, and the detection results visually demonstrate the difference between before and after denoising. In order to further evaluate the denoising performance, this study also performed edge detection on images processed by both wavelet transform and the current widely used Gaussian filter, and it calculated the Pratt quality factor of the edge detection results, which were 0.53 and 0.47, respectively. This indicates that the use of wavelet transform to remove noise is more beneficial to the improvement of the subsequent edge detection results.

Published
2022

112. An Improved Approximation Algorithm for Scaffold Filling to Maximize the Common Adjacencies

Author

Liu, Nan, Jiang, Haitao, Zhu, Daming, Zhu, Binhai, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Du, Ding-Zhu, editor, and Zhang, Guochuan, editor

Published
2013
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113. The Algorithm for the Two-Sided Scaffold Filling Problem

Author

Liu, Nan, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Chan, T-H. Hubert, editor, Lau, Lap Chi, editor, and Trevisan, Luca, editor

Published
2013
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115. On Editing Graphs into 2-Club Clusters

Author

Liu, Hong, Zhang, Peng, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Snoeyink, Jack, editor, Lu, Pinyan, editor, Su, Kaile, editor, and Wang, Lusheng, editor

Published
2012
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117. Tight Bounds on Local Search to Approximate the Maximum Satisfiability Problems

Author

Zhu, Daming, Ma, Shaohan, Zhang, Pingping, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Fu, Bin, editor, and Du, Ding-Zhu, editor

Published
2011
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119. A Volume Self-Regulation MoS2 Superstructure Cathode for Stable and High Mass-Loaded Zn-Ion Storage

Author

Yao, Zeying, primary, Zhang, Wei, additional, Ren, Xiaochuan, additional, Yin, Yaru, additional, Zhao, Yuanxin, additional, Ren, Zhiguo, additional, Sun, Yuanhe, additional, Lei, Qi, additional, Wang, Juan, additional, Wang, Lihua, additional, Ji, Te, additional, Huai, Ping, additional, Wen, Wen, additional, Li, Xiaolong, additional, Zhu, Daming, additional, and Tai, Renzhong, additional

Published
2022
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122. Minimum Common String Partition Revisited

Author

Jiang, Haitao, Zhu, Binhai, Zhu, Daming, Zhu, Hong, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Lee, Der-Tsai, editor, Chen, Danny Z., editor, and Ying, Shi, editor

Published
2010
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123. Polynomial-Time Algorithm for Sorting by Generalized Translocations

Author

Yin, Xiao, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Chen, Jianer, editor, and Cooper, S. Barry, editor

Published
2009
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125. A 2.25-Approximation Algorithm for Cut-and-Paste Sorting of Unsigned Circular Permutations

Author

Lou, Xiaowen, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Hu, Xiaodong, editor, and Wang, Jie, editor

Published
2008
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126. Genome Rearrangement Algorithms for Unsigned Permutations with O(logn) Singletons

Author

Lou, Xiaowen, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Agrawal, Manindra, editor, Du, Dingzhu, editor, Duan, Zhenhua, editor, and Li, Angsheng, editor

Published
2008
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131. Prediction of Protein Subcellular Locations by Combining K-Local Hyperplane Distance Nearest Neighbor

Author

Liu, Hong, Feng, Haodi, Zhu, Daming, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, Series editor, Siekmann, Jörg, Series editor, Wahlster, Wolfgang, Series editor, Alhajj, Reda, editor, Gao, Hong, editor, Li, Jianzhong, editor, Li, Xue, editor, and Zaïane, Osmar R., editor

Published
2007
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133. Triggering Mixed Cationic‐Anionic Redox in Cu2‐xSe Cathodes via Tailored Charge‐Carrier for High Energy Density Aqueous Zn Batteries.

Author

Yao, Zeying, Yang, Junwei, Ren, Zhiguo, Ren, Xiaochuan, Sun, Yuanhe, Zhao, Yuanxin, Si, Jingying, Lei, Qi, Zhang, Wei, Li, Zhao, Yin, Yaru, Chen, Jige, Wen, Wen, Zhu, Daming, Li, Xiaolong, and Tai, Renzhong

Subjects
ENERGY density, CATHODES, OXIDATION-reduction reaction, DIFFUSION kinetics, ELECTRIC batteries, STORAGE batteries
Abstract

The further application of promising transition‐metal chalcogenides (TMCs) cathodes in dilute neutral aqueous Zn batteries (AZBs) is mainly plagued by unsatisfactory working voltages (usually <1 V vs Zn2+/Zn) and their conventional cationic redox centers reaching theoretical capacity limit. Hence, to break the confinement, a novel Zn‐Cu2‐xSe battery is developed in dilute neutral‐aqueous electrolyte by introducing a tailored charge‐carrier, which not only alters the intercalation potential of ions embedded into Cu2‐xSe (vs Zn2+/Zn, working voltage from ≈0.4 to ≈1.2 V) but also activates the anionic redox centers of Cu2‐xSe (capacity release from 143.4 to 323.2 mAh g−1 at 0.4 A g−1). In situ synchrotron X‐ray diffraction (SXRD) and substantial ex situ characterizations reveal the multi‐step phase conversion undergone by cathode and triggered additional Se‐based anionic (Sen2−/Se2−) reversible redox reaction. A multi‐electron synergistic transfer process established on the cationic‐anionic redox centers circumvents the slow relaxation of single‐ion charge compensation achieving high‐capacity and enhanced ion diffusion kinetics. As a result, an extraordinary energy density of up to 406.2 Wh kg−1 at 240 W kg−1 is implemented (calculated based on the mass of Cu2‐xSe cathode), which is ≈8.4 times higher than that of conventional Zn‐Cu2‐xSe batteries, representing an advanced development toward energetic AZBs. [ABSTRACT FROM AUTHOR]

Published
2023
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135. Research on Wavelet Transform Modulus Maxima and OTSU in Edge Detection.

Author

You, Ning, Han, Libo, Liu, Yuming, Zhu, Daming, Zuo, Xiaoqing, and Song, Weiwei

Subjects
WAVELET transforms, HOUGH transforms, BRIDGE maintenance & repair, ENTROPY (Information theory), ALGORITHMS
Abstract

During routine bridge maintenance, edge detection allows the partial condition of the bridge to be viewed. However, many edge detection methods often have unsatisfactory performances when dealing with images with complex backgrounds. Moreover, the processing often involves the manual selection of thresholds, which can result in repeated testing and comparisons. To address these problems in this paper, the wavelet transform modulus maxima method is used to detect the target image, and then the threshold value of the image can be determined automatically according to the OTSU method to remove the pseudo-edges. Thus, the real image edges can be detected. The results show that the information entropy and SSIM of the detection results are the highest when compared with the commonly used Canny and Laplace algorithms, which means that the detection quality is optimal. To more fully illustrate the advantages of the algorithms, images with more complex backgrounds were detected and the processing results of the algorithms in this paper are still optimal. In addition, the automatic selection of thresholds saves the operator's effort and improves the detection efficiency. Thanks to the combined use of the above two methods, detection quality and efficiency are significantly improved, which has a good application in engineering practice. [ABSTRACT FROM AUTHOR]

Published
2023
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137. A New DNA-Based Approach to Solve the Maximum Weight Clique Problem

Author

Han, Aili, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Istrail, Sorin, editor, Pevzner, Pavel, editor, Waterman, Michael S., editor, Huang, De-Shuang, editor, Li, Kang, editor, and Irwin, George William, editor

Published
2006
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138. A New DNA Encoding Method for Traveling Salesman Problem

Author

Han, Aili, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Istrail, Sorin, editor, Pevzner, Pavel, editor, Waterman, Michael S., editor, Huang, De-Shuang, editor, Li, Kang, editor, and Irwin, George William, editor

Published
2006
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139. Faster Algorithms for Sorting by Transpositions and Sorting by Block-Interchanges

Author

Feng, Jianxing, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Cai, Jin-Yi, editor, Cooper, S. Barry, editor, and Li, Angsheng, editor

Published
2006
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142. A 1.75-Approximation Algorithm for Unsigned Translocation Distance

Author

Cui, Yun, Wang, Lusheng, Zhu, Daming, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Deng, Xiaotie, editor, and Du, Ding-Zhu, editor

Published
2005
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145. Synergistic Engineering of Sulfur Vacancies and Heterointerfaces in Copper Sulfide Anodes for Aqueous Zn‐Ion Batteries with Fast Diffusion Kinetics and an Ultralong Lifespan

Author

Lei, Qi, primary, Zhang, Jiaqian, additional, Liang, Zhaofeng, additional, Yue, Yang, additional, Ren, Zhiguo, additional, Sun, Yuanhe, additional, Yao, Zeying, additional, Li, Ji, additional, Zhao, Yuanxin, additional, Yin, Yaru, additional, Huai, Ping, additional, Lv, Zhengxing, additional, Li, Jiong, additional, Jiang, Zheng, additional, Wen, Wen, additional, Li, Xiaolong, additional, Zhou, Xingtai, additional, and Zhu, Daming, additional

Published
2022
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148. 基于DSNet的遥感影像语义分割方法

Author

史芳行 Shi Fangxing, 周林娥 Zhou line, 朱大明 Zhu Daming, and 付志涛 Fu Zhitao

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics
Published
2023

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