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A reputation-based blockchain scheme for sustained carbon emission reduction

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Science China(Information Sciences) 2024年第5期67卷 329-330页

作者： Lixiao ZHOU Changbing TANG zheng bao Yang LIU Xinghuo YU College of Physics and Electronics Information Engineering Zhejiang Normal University School of Computer Science and Technology Zhejiang Normal University School of Mathematical Sciences Zhejiang Normal University School of Engineering RMIT University

Climate change is a global issue that necessitates collective responsibility from all nations. Recently, a blockchainenabled emission trading scheme(ETS) has been proposed for reducing carbon emissions to overcome the drawbacks of centralized methods [1, 2]. However, existing consensus protocols in blockchain have not been well prepared for low energy consumption and high incentive compatibility [3],which is contrary to the low carbon goal of ETS.

关键词： reputation emission scheme carbon based blockchain reduction sustained

REVIEW OF REDUCED RANK SPACE-TIME ADAPTIVE PROCESSING FOR AIRBORNE RADARS

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REVIEW OF REDUCED RANK SPACE-TIME ADAPTIVE PROCESSING FOR AI...

Combined energy detection and one-order cyclostationary feature detection techniques in cognitive radio systems

1996 CIE International Conference of Radar(ICR’96)

作者： bao zheng Wu Shunjun Liao Guisheng Xu Zhiyong Key Laboratory for radar Signal Processing Xidian University

ISBN: (纸本)0780329147

＜正＞This paper overviews reduced rank space-time adaptive processing（STAP）for clutter suppression in airborne early warning（AEW）radars.A new hybrid low dimensional STAP（HSTAP）approach without high implementation cost is also discussed via assigning the number of system’s degrees of freedom（DOFs）between spatial and temporal domain reasonably. The clutter rejection performance of HSTAP method is superior to the conventional cascaded space-time processing （CST）,which is verified by computer simulations.

关键词： radar clutter interference suppression adaptive signal processing radar signal processing military aircraft airborne radar radar detection reviews reduced rank space-time adaptive processing airborne radar clutter suppression airborne early warning radars AEW radars hybrid low dimensional STAP HSTAP implementation cost system degrees of freedom spatial domain temporal domain clutter rejection performance

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The Journal of China Universities of Posts and Telecommunications 2010年第4期17卷 18-25页

作者： YUE Wen-jing zheng bao-yu MENG Qing-min YUE Wen-jie Institute of Signal Processing and Transmission Nanjing University of Posts and Telecommunications Nanjing 210003 China Department of Electronic Engineering Shanghai Jiaotong University Shanghai 200240 China Shanxi Institute of Educational Science Taiyuan 030009 China

One of the main requirements of cognitive radio systems is the ability to detect the presence of the primary user with fast speed and precise accuracy. To achieve that, a possible two-stage spectrum sensing scheme is suggested in this paper. More specifically, a fast spectrum sensing algorithm based on the energy detection is introduced focusing on the coarse detection. A complementary fine spectrum sensing algorithm adopts one-order cyclostationary properties of primary user＇s signals in time domain. Since the one-order feature detection is performed in time domain, the real-time operation and low-computational complexity can be achieved. Also, it drastically reduces hardware burdens and power consumption as opposed to two-order feature detection. The sensing performance of the proposed method is studied and the analytical performance results are given. The results indicate that better performance can be achieved in proposed two-stage sensing detection compared to the conventional energy detector.

关键词： cognitive radio (CR) spectrum sensing energy detector cyclostationary feature detector

Improved Cd determination in glasses by laser ablation inductively coupled plasma mass spectrometry using nitrogen as a matrix modifier

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Chinese Chemical Letters 2009年第1期20卷 92-95页

作者： Qian Ni Zhao Chu Hu zheng Yu bao Ya Feng Zhang State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Wuhan 430074 China Laboratory of No. 9 Gold Detachment Chinese People's Arming Police Unit Hainan 570216 China

The addition of 5-10 mL min^-1 nitrogen to the central channel of plasma in Laser ablation Inductively Coupled Plasma Mass Spectrometry （LA-ICP-MS） increases the sensitivities of Cd by a factor of 3 and decreases oxide interferences by one order of magnitude, which allows the direct analysis of trace levels of Cd in glass samples. This simple method shows a great potential for the direct determination of Cd in various kinds of samples.

关键词： LA-ICP-MS Cd MPI-DING glass

Research on the Key Issues of Wireless Mobile Ad Hoc Networks

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The Journal of China Universities of Posts and Telecommunications 2005年第3期12卷 1-6页

作者： YANG Zhen zheng bao-yu Nanjing University of Posts & Telecommunications Nanjing 210003 P.R. China

Communication Network and Signal Processing are two of the research hotspots in the field of information technology because of their fast development. This paper focuses on the introduction of some research progresses in our National 863 Project based on the combination of technologies in these two areas. We present two new Medium Access Control （MAC） protocols based on so-called Multi-Packets Reception （MPR） in Ad hoc networks. Communication in the first scheme is initiated from senders and from receivers in the second one. Simulation results show that these new MAC protocols, which are based on new signal processing techniques, may raise network capacity and reduce transmission delay of data from end to end.

关键词： Ad hoc MAC MPR

Start-up strategies of UASB reactor for treatment of pharmaceutical wastewater

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Journal of Environmental Sciences 2002年第2期14卷 250-254页

作者： zheng Ping, HU bao lan (Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China. Department of Environmental Engineering Zhejiang University Hangzhou 310029

Two start up strategies of upflow anaerobic sludge blanket(UASB) reactor for treatment of pharmaceutical wastewater were investigated. The results showed that both of them were workable. Compared with the strategy that started up the reactor directly using chloromycetin wastewater, the strategy that started up the reactor first using mixed wastewater and then using chloromycetin wastewater could save time by 23%. When the latter strategy was adopted the development of sludge activity fluctuated more largely and its final activity was lower, but the sludge grew faster in the course of start up.

关键词： start up toxic wastewater UASB

Role of transforming growth factor-beta signaling pathway in pathogenesis of benign biliary stricture

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World Journal of Gastroenterology 2008年第31期14卷 4949-4954页

作者： Zhi-Min Geng Jian-bao zheng Xiao-Xue Zhang Jie Tao Lin Wang Department of Hepatobiliary Surgery First Affiliated Hospital Medical College Xi'an Jiaotong University Xi'an 710061. Shaanxi Province China Department of General Surgery Firs Affiliated Hospital Medical College Xi'an Jiaotong University Xi'an 710061 Shaanxi Province China

AIM: To characterize the expression of members of the transforming growth factor-beta (TGF-β)/Smad/ connective tissue growth factor (CTGF) signaling pathway in the tissue of benign biliary stricture, and to investigate the effect of TGF-β signaling pathway in the pathogenesis of benign biliary stricture. METHODS: Paraffin embedded materials from 23 cases of benign biliary stricture were analyzed for members of the TGF-β/Smad/CTGF signaling pathway. TGF-β_1, TβRⅠ, TβRⅡ, Smad4, Smad7 and CTGF protein were detected by immunohistochemical strepto-advidinbiotin complex method, and CTGF mRNA was evaluated by hybridization in situ, while 6 cases of normal bile duct served as controls. The percentages of positive cells were counted. The correlation between TGF-β_1, Smad4 and CTGF was analyzed. RESULTS: The positive expression ratios of TGF-β_1, TβRⅠ , TβRⅡ , Smad4, CTGF and CTGF mRNA in 23 cases with benign biliary stricture were 91.3%, 82.6%, 87.0%, 78.3%, 82.6% and 65.2%, respectively, signifi cantly higher than that in 6 cases of normal bile duct respectively (vs 33.3%, 16.7%, 50.0%, 33.3%, 50.0%, 16.7%, respectively, P 0.05). There was a positive correlation between positive expression of TGF-β_1, Smad4 and CTGF in cases with benign biliary stricture. CONCLUSION: The high expression of TGF-β/Smad/ CTGF signaling pathway plays an important role in the pathogenesis of benign biliary stricture.

关键词： Biliary stricture Transforming growth factor-beta 1 Smad Connective tissue growth factor TβR

A Method of Designing Irregular Subarray Architectures for Partially Adaptive Processing

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A Method of Designing Irregular Subarray Architectures for P...

Photoredox-Catalyzed Metal-Free Regio-&Stereoselective C(sp^(2))-H Amination of Enamides with N-Aminopyridium Salts

1996 CIE International Conference of Radar(ICR’96)

作者： Xu Zhiyong bao zheng Liao Guisheng Key Laboratory for Radar Signal Processing Xidian University

ISBN: (纸本)0780329147

＜正＞A method of dividing a uniform linear array with identical elements into unequally sized subarrays is proposed on the principle of designing a density tapering *** power at every subarray output is normalized for partially adaptive processing to obtain near-optimum interference suppression performance with low sidelobe level and distonionless mainlobe in adapted antenna *** regular subarray architectures, irregular subarray architectures may have no problem of grating *** example of space-time adaptive processing（STAP）for airborne radar systems based on irregular subarrays is given.

关键词： interference suppression airborne radar radar interference adaptive antenna arrays radar antennas adaptive signal processing radar signal processing linear antenna arrays antenna radiation patterns design irregular subarray architectures partially adaptive processing uniform linear array w unequally sized subarray density tapering array noise power subarray output near-optimum interference suppression performance sidelobe level distortionless mainlobe adapted antenna pattern grating lobes space-time adaptive processing STAP airborne radar systems

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Chinese Journal of Chemistry 2024年第18期42卷 2235-2242页

作者： zheng-bao Qin Kun Ni Li Wang Xiao-Di Wu Yu Zhang Kai Zhao Institute of Advanced Synthesis School of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech UniversityNanjingJiangsu211816China college of Chemical Engineering Nanjing Forestry UniversityNanjingJiangsu 210037China

A visible-light-induced photoredox-catalyzed regioselective and stereoselective C(sp')-H amination of enamides with bench-stable and A visible-light-induced photoredox-catalyzed regioselective and stereoselective C(sp)-H amination of enamides with bench-stable and easily accessible N-aminopyridium salts is developed,affording synthetically and biologically prominent vicinal 1,2-diamine scaffolds with broad substrate scope and excellent functional group *** transformation proceeded through a radical pathway involving the Giese addition of the relatively electrophilic N-centered sulfonamidyl radical species to nucleophilicβ-olefinic position of enamides followed by the ensuing single electron oxidation andβ-H elimination,delivering geometrically-defined Z-configuredβ-sulfonamidylated *** operational simplicity,environmental friendliness and cost efficiency of this methodology allowed it to pave a new avenue to enrich the arsenal of synthetically crucial functionalized enamides and their related derivatives.

关键词： Enamides Amination Photoredox catalysis Regioselective Stereoselective Metal-free