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| 1 | Optimization of the End Effect of Hilbert-Huang transform(HHT)显示文摘In fault diagnosis of rotating machinery, Hilbert-Huang transform(HHT) is often used to extract the fault characteristic signal and analyze decomposition results in time-frequency domain. However, end effect occurs in HHT, which leads to a series of problems such as modal aliasing and false IMF(Intrinsic Mode Function). To counter such problems in HHT, a new method is put forward to process signal by combining the generalized regression neural network(GRNN) with the boundary local characteristic-scale continuation(BLCC).Firstly, the improved EMD(Empirical Mode Decomposition) method is used to inhibit the end effect problem that appeared in conventional EMD. Secondly, the generated IMF components are used in HHT. Simulation and measurement experiment for the cases of time domain,frequency domain and related parameters of HilbertHuang spectrum show that the method described here can restrain the end effect compared with the results obtained through mirror continuation, as the absolute percentage of the maximum mean of the beginning end point offset and the terminal point offset are reduced from 30.113% and27.603% to 0.510% and 6.039% respectively, thus reducing the modal aliasing, and eliminating the false IMF components of HHT. The proposed method can effectively inhibit end effect, reduce modal aliasing and false IMF components, and show the real structure of signal components accurately. | Chenhuan Lv Jun ZHAO Chao WU Tiantai GUO Hongjiang CHEN | 2017 | Chinese Journal of Mechanical Engineering2017，30，3： | 3 |
| 2 | Accelerating column leaching trial on copper sulfide ore显示文摘The main measures to accelerate leaching sulfide ore are large spraying intensity,manual oxygen supply,temperature control,and acclimated bacteria.The indoor experiment accelerating sulfide ore leaching detected the temperature during leaching process,dissolvability of oxygen,bacterial concentration,Cu concentration and slag grade.At the same time,this paper also analyzed the effect of four factors,which are bacterial diversity cultivation stage,spraying intensity,air supply,and whether to control temperature,on the leaching efficiency of copper.The results indicate that the oxygen content of leach solution has a close relationship with temperature but it is rarely affected by air supply.The bacterial concentration preserves from 106 to 107 mL-1,and temperature has a great effect on the bacterial activity under the condition of proper temperature and oxygen supply,and the lack of nutrition prevents the bacterial concentration from rising in the late stage.The relationships of the copper leaching efficiency to temperature,air feed,and spraying intensity are directly proportional.The leaching efficiencies of the cultivated bacteria and acclimation bacteria are 1.2 and 1.4 times as large as that of the original bacteria. | WANG Hongjiang WU Aixiang ZHOU Xun WANG Shaoyong ZHANG Jie | 2008 | Rare Metals2008，27，1： | 2 |
| 3 | An integrated system for content-based video retrieval and browsing 显示文摘 | ZHANG Hongjiang WU J ZHONG D | 1997 | Pattern Recognition1997，30，4： | 1 |
| 4 | An Integrated System for Content-Based Video Retrieval and Browsing显示文摘 | Hongjiang Zhang Jianhua Wu Di Zhong | 1997 | Pattern Recognition1997，30，4： | 1 |
| 5 | Study on Performance Regulation and Mechanism of Quicklime and Biopolymer on Hemihydrate Phosphogypsum显示文摘In order to reduce the influence of impurities in hemihydrate phosphogypsum(HPG)on the environment and improve the workability of HPG,the effects of the content of quicklime and types of biopolymer(hydroxypropyl methylcellulose,xanthan gum,sodium polyacrylate(PAANa))on the compressive strength,softening coefficient and ultrasonic velocity of HPG were evaluated.When the content of quicklime was 1.5%and the content of PAA-Na was 0.2%,HPG had the best mechanical properties and workability,its water retention rate can be increased by 5.8%,and unconfined compressive strength of 3 days increased by 10.3%and 7 days increased by 13.1%.Through the analysis of scanning electron microscope and X-ray diffraction,it was found that the hydration reac-tion of HPG was more sufficient,the pores size and number decreased,the number of impurities on the crystal surface decreased obviously,and CaF2 and other substances were formed by the reaction after the addition of quicklime.After adding quicklime and PAANa,the indicators of gypsum self-leveling mortar prepared by HPG meet the requirements of the standard. | Zaibo Zhou Juanhong Liu Kun Luo Aixiang Wu Hongjiang Wang | 2022 | Journal of Renewable Materials2022，10，2： | 1 |
| 6 | Mechanical model of scraper rake torque in deep-cone thickener显示文摘 | WU Aixiang JIAO Huazhe WANG Hongjiang | 2012 | Journal of Central South University: Science and Technology2012，43，4： | 1 |
| 7 | Energy decomposition analysis for intramolecular non-covalent interaction in solvated environment显示文摘In this work, the intra-EDA method, which is a recently developed energy decomposition analysis scheme for intramolecular non-covalent interaction is extended from gas phase to solvated environment. It is the first analysis scheme that performs analysis for intramolecular interaction in solution. By fragmentation scheme, a molecule is divided into intramolecular interacting fragments and environmental fragments via single bond homolysis breaking. The solvent effect is taken into account by implicit solvation model. Intramolecular interaction free energy is estimated as the separated treatment of inter-fragment interactions in dielectric environment. The analysis results highlight the importance of solvent effects to intramolecular non-covalent interaction. | Peifeng Su Hongjiang Chen Wei Wu | 2016 | Science China Chemistry2016，59，8： | 1 |
| 8 | An IntegratedSystem for Content-based Video Retrieval and Browsing显示文摘 | Zhang Hongjiang Wu Jianhua Zhong Di | 1997 | Pattern Recognition1997，30，4： | 1 |
| 9 | The solids concentration distribution in the deep cone thickener: A pilot scale test显示文摘 | Huazhe Jiao Aixiang Wu Hongjiang Wang | 2013 | Korean Journal of Chemical Engineering2013，30，2： | 1 |
| 10 | Calculation methods for determining the distribu- tion of components in a separation cascade for multicomponent mixture 显示文摘 | Wu Hongjiang Ying Chuntong Liu Guanjun | 1998 | Separation Science and Technology1998，33，6： | 1 |
| 11 | In-situ encapsulation ofα-Fe_(2)O_(3) nanoparticles into ZnFe_(2)O_(4) micro-sized capsules as high-performance lithium-ion battery anodes显示文摘Transition metal oxides as anode materials for high-performance lithium-ion batteries suffer from severe capacity decay,originating primarily from particle pulverization upon volume expansion/shrinkage and the intrinsically sluggish electron/ion transport.Herein,in-situ encapsulation ofα-Fe_(2)O_(3) nanoparticles into micro-sized ZnFe_(2)O_(4) capsules is facilely fulfilled through a co-precipitation process and followed by heat-treatment at optimal calcination temperature.The porous ZnFe_(2)O_(4) scaffold affords a synergistic confinement effect to suppress the grain growth ofα-Fe2 O3 nanocrystals during the calcination process and to accommodate the stress generated by volume expansion during the charge/discharge process,leading to an enhanced interfacial conductivity and inhibit electrode pulverization and mechanical failure in the active material.With these merits,the preparedα-Fe_(2)O_(3)/Fe_(2)O_(4) composite delivers prolonged cycling stability and improved rate capability with a higher specific capacity than soleα-Fe_(2)O_(3) and Fe_(2)O_(4).The discharge capacity is retained at 700 mAh g-1 after 500 cycles at 200 mA g^(-1) and 940 mAh g^(-1) after 50 cycles at 100 m A g^(-1).This work provides a new perspective in designing transition metal oxides for advanced lithium-ion batteries with superior electrochemical properties. | Wei Wu Yongshan Wei Hongjiang Chen Keyan Wei Zhitong Li Jianhui He Libo Deng Lei Yao Haitao Yang | 2021 | Journal of Materials Science & Technology2021，，16： | 1 |
| 12 | Caleulational methods for determining the distribution of components in a separation cascade for multieomponent mixture 显示文摘 | HONGJIANG WU CHUNTONG YING GUANGJUN LIU | 1998 | Separation Science and Technology1998，33，6： | 1 |
| 13 | Analysis of gas centrifuge cascade for separation of multicomponent isotope and *optimal feed position 显示文摘 | YING Chuntong WU Hongjiang ZHOU Mingsheng | 1997 | Separation Science and Tech1997，32，15： | 1 |
| 14 | Calculation methods for determining the distribution of components in a separation cascade for multicomponent mixture显示文摘 | WU Hongjiang YING Chuntong LIU Guanjun | 1998 | Separation Science and Technology1998，33，6： | 1 |
| 15 | Study on the Electrochemical Properties of Fe2O3 -Ti O2 films prepared by sol-gel process显示文摘 | HU Lili ZHANG Hongjiang | 1997 | J Electrocchem Soc1997，144，5： | 1 |
| 16 | An integrated system for content-based video retrieval and browsing 显示文摘 | Zhang Hongjiang Wu Jianhua Zhong Di | 1997 | Pattern Recognition1997，30，4： | 1 |
| 17 | An experimental study of pyrite bio-leaching as a way to control spontaneous combustion显示文摘Bio-leaching of pyrite by native strains of acidophilic bacteria was examined by laboratory scale tests.Three groups of batch trials in agitated fiasks and three continuous column leaching tests were performed.The leaching ability and efficiency of native bacteria was greatly improved by adaptation of the bacteria to the test conditions.These cultivated bacteria were then used for the leaching process.The changes in solution pH,Eh,Fe2+ concentration,and sulfate ion concentration were monitored throughout the tests.A portion of the pyritic sulfur is transformed into soluble sulfate ion.The desulfurization ratio of 42.6% was obtained in a fiask shaking test and a ratio of 39.4% was obtained during column leaching.A weight gain test was performed on leached and unleached samples by exposing the samples to humid air for several days.A smaller weight gain of the bioleached samples indicates that removing sulfur from the sulphide ore helps reduce its oxidation rate and the potential for spontaneous combustion. | Yin Shenghua Wu Aixiang Liu Jinzhi Huang Mingqing Wang Hongjiang | 2011 | Mining Science and Technology2011，21，4： | 0 |
| 18 | Revealing the output power potential of bifacial monolithic all-perovskite tandem solar cells显示文摘Bifacial monolithic all-perovskite tandem solar cells have the promise of delivering higher output power density by inheriting the advantages of both tandem and bifacial architectures simultaneously.Herein,we demonstrate,for the first time,the bifacial monolithic all-perovskite tandem solar cells and reveal their output power potential.The bifacial tandems are realized by replacing the rear metal electrodes of monofacial tandems with transparent conduction oxide electrodes.Bandgap engineering is deployed to achieve current matching under various rear illumination conditions.The bifacial tandems show a high output power density of 28.51 mW cm−2 under a realistic rear illumination(30 mW cm−2).Further energy yield calculation shows substantial energy yield gain for bifacial tandems compared with the monofacial tandems under various ground albedo for different climatic conditions.This work provides a new device architecture for higher output power for all-perovskite tandem solar cells under real-world conditions. | Hongjiang Li Yurui Wang Han Gao Mei Zhang Renxing Lin Pu Wu Ke Xiao Hairen Tan | 2022 | eLight2022，2，1： | 0 |
| 19 | Research and Application Status and Development Trend of Alkali-Activated Binder Powder for Mine Backfill显示文摘To improve the economic and social benefits of mining and backfill,it is necessary to find the backfill materials suitable for mineral mining,improve the various properties of the filling materials,and develop low cost,high performance new filling materials.Portland cement is neither environmentally friendly nor economical.Currently,we have begun to study and apply some industrial waste,such as slag,fly ash,and other solid wastes,with certain activities as the primary component of cementing material that will not only meet the technical requirements of filling,but also comprehensively utilize industrial waste and possess a benign,sustainable lifecycle for environmental protection.This study expounds the composition and reaction mechanism of alkali-activated binder powder used for cemented paste backfill material,summarizes the research and application status of alkaliactivated binder powders,including mechanics,durability,economic and environmental,and discusses future development directions for mine binder powders.It needs to continue to expand the utilization range of solid waste and improve the utilization rate of solid waste in the future.The development and research of this binder powder plays an important role in the progress of filling technologies.Hence,the research about alkali-activated binder powder contains great development potential and broad prospects. | Qian Zhou Yueyue Zhang Juanhong Liu Aixiang Wu Hongjiang Wang | 2022 | Journal of Renewable Materials2022，10，12： | 0 |
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