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Energy Transition Game and China's Energy Security Guarantee

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China Oil & Gas 2022年第4期29卷 17-22页

作者： wang haibin Sinochem Energy Co. Ltd.

Different from previous energy transitions, the fundamental nature of the lowcarbon energy transition is that of an energy revolution. The world energy situation in the era of carbon neutrality is undergoing important changes. For a long time to come, under the influence of the policies and market factors of various countries, the growth of the fossil energy supply worldwide will be limited, but it is unlikely that the change in demand will keep pace with that in supply.

关键词： Transition neutral market

Engineering the interface of porous CoMoO_(3)nanosheets with Co_(3)Mo nanoparticles for high-performance electrochemical overall water splitting

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Journal of Materials Science & Technology 2023年第6期137卷 184-192页

作者： haibin Ma Xuejing Yang Zhili wang Qing Jiang Key Laboratory of Automobile Materials Ministry of Educationand School of Materials Science and EngineeringJilin UniversityChangchun 130022China

The design of high-performance electrocatalysts for alkaline water splitting is of significant importance for the development of a sustainable hydrogen economy.Herein,heterostructured Co_(3)Mo nanoparti-cles/porous CoMoO_(3)nanosheets(Co_(3)Mo/CoMoO_(3)NPSs)were constructed for alkaline water splitting by annealing CoMoO x nanosheets under controlled atmospheres.Thanks to its interfacial electronic structure and increased electrochemical active area,Co_(3)Mo/CoMoO_(3)NPSs exhibit impressive hydrogen evolution reaction(HER)activity with an overpotential of 334 mV at 1000 mA cm^(-2) and a Tafel slope of 46.4 mV per decade in 1.0 M KOH,which outperforms Pt/C catalyst(621 mV and 74.7 mV per decade).Density functional theory calculations illustrate the electron transfer from Co_(3)Mo to CoMoO_(3)at the interfaces,where electron accumulation on CoMoO_(3)favors the dissociation of H_(2)O molecule,and electron-deficient Co atoms in Co_(3)Mo have optimized H∗absorption energy for HER.The Co_(3)Mo/CoMoO_(3)NPSs also exhibit higher oxygen evolution reaction activity than the RuO_(2)catalyst.Moreover,the water electrolyzer us-ing Co_(3)Mo/CoMoO_(3)NPSs as both cathode and anode only requires 1.59 V to deliver a current density of 100 mA cm^(-2)in 1.0 M KOH,which outperforms benchmark Pt/C||RuO_(2)electrodes couple with 1.69 V to reach the same current density,providing great potential for large-scale applications.

关键词： Interface engineering Heterostructures Interfacial electronic structure Hydrogen evolution reaction Overall water splitting

Hierarchical Visual Attention Model for Saliency Detection Inspired by Avian Visual Pathways

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IEEE/CAA Journal of Automatica Sinica 2019年第2期6卷 540-552页

作者： Xiaohua wang haibin Duan the State Key Laboratory of Virtual Reality Technology and Systems School of Automation Science and Electrical Engineering Beihang University the State Key Laboratory of Virtual Reality Technology and Systems School of Automation Science and Electrical EngineeringBeihang University the Peng Cheng Laboratory

Visual attention is a mechanism that enables the visual system to detect potentially important objects in complex environment. Most computational visual attention models are designed with inspirations from mammalian visual systems.However, electrophysiological and behavioral evidences indicate that avian species are animals with high visual capability that can process complex information accurately in real time. Therefore,the visual system of the avian species, especially the nuclei related to the visual attention mechanism, are investigated in this paper. Afterwards, a hierarchical visual attention model is proposed for saliency detection. The optic tectum neuron responses are computed and the self-information is used to compute primary saliency maps in the first hierarchy. The "winner-takeall" network in the tecto-isthmal projection is simulated and final saliency maps are estimated with the regularized random walks ranking in the second hierarchy. Comparison results verify that the proposed model, which can define the focus of attention accurately, outperforms several state-of-the-art models.This study provides insights into the relationship between the visual attention mechanism and the avian visual pathways. The computational visual attention model may reveal the underlying neural mechanism of the nuclei for biological visual attention.

关键词： Avian visual pathways bio-inspired saliency detection visual attention

Exploring Image Generation for UAV Change Detection

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IEEE/CAA Journal of Automatica Sinica 2022年第6期9卷 1061-1072页

作者： Xuan Li haibin Duan Yonglin Tian Fei-Yue wang Peng Cheng Laboratory Shenzhen 518000China IEEE State Key Laboratory of Virtual Reality Technology and Systems School of Automation Science and Electrical EngineeringBeihang UniversityBeijing 100083 Department of Automation University of Science and Technology of ChinaHefei 230027 State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China Research Center for Computational Experiments and Parallel Systems Technology National University of Defense TechnologyChangsha 410073China

Change detection(CD)is becoming indispensable for unmanned aerial vehicles(UAVs),especially in the domain of water landing,rescue and search.However,even the most advanced models require large amounts of data for model training and testing.Therefore,sufficient labeled images with different imaging conditions are needed.Inspired by computer graphics,we present a cloning method to simulate inland-water scene and collect an auto-labeled simulated dataset.The simulated dataset consists of six challenges to test the effects of dynamic background,weather,and noise on change detection models.Then,we propose an image translation framework that translates simulated images to synthetic images.This framework uses shared parameters(encoder and generator)and 22×22 receptive fields(discriminator)to generate realistic synthetic images as model training sets.The experimental results indicate that:1)different imaging challenges affect the performance of change detection models;2)compared with simulated images,synthetic images can effectively improve the accuracy of supervised models.

关键词： Change detection computer graphics image translation simulated images synthetic images unmanned aerial vehicles(UAVs)

Unveiling the role of Zn dopants in NiFe phosphide nanosheet for oxygen evolution reaction

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Progress in Natural Science:Materials International 2023年第1期33卷 74-82页

作者： Chendong Kou Jingrui Han haibin wang Mei Han Hongyan Liang School of Materials Science and Engineering Tianjin University Key Laboratory of Efficient Utilization of Low and Medium Grade Energy Tianjin University

Transition metal phosphides have been recognized as promising electrocatalysts for oxygen evolution reaction(OER) due to their low cost and high activity. However, the insufficient exposed active region limited the OER performance. Recently, the introduction of sacrificial dopants has been considered an effective strategy to enlarge the surface area. Herein, the Zn dopants are introduced in NiFe phosphide(NiFeZnP) nanosheet, which work as the sacrificial dopants to generate more exposed active NiFe sites and promote the formation of the NiFeOOH active phase during OER process. The optimized Zn-doped NiFeP catalyst shows an overpotential of ≈203 mV to reach a current density of 10 mA cm-2in 1 M KOH, and a stability of 100 h at 1000 mA cm-2. Overall, this work provides a sacrificial Zn doping strategy to prepare highly efficient OER electrocatalysts.

关键词： Transition metal phosphide Sacrificial dopant Self-supported electrode Oxygen evolution reaction

Multiple metallic dopants in nickel nanoparticles for electrocatalytic oxygen evolution

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Progress in Natural Science:Materials International 2023年第1期33卷 67-73页

作者： Yan Huang Jingrui Han haibin wang Lihua Liu Hongyan Liang School of Materials Science and Engineering Tianjin University Key Laboratory of Efficient Utilization of Low and Medium Grade Energy Ministry of Education Tianjin University College of Innovation and Entrepreneurship Shanghai Jianqiao University

Developing efficient oxygen evolution reaction(OER) electrocatalysts is of great importance for sustainable energy conversion and storage. Ni-based catalysts have shown great potential as OER electrocatalysts, but their performance still needs to be improved. Herein, we report the multiple metal doped nickel nanoparticles synthesized via a simple oil phase strategy as efficient OER catalysts. The FeMnMoV–Ni exhibits superior OER performance with an overpotential of 220 mV at 10 mA cm-2and a long-term stability of 250 h in 1 M KOH solution. In situ Raman analysis shows that the NiOOH site works as the active center and multiple metallic dopants facilitate the formation of NiOOH. Mo and V dopants promote the formation of high-valence state of Ni sites, and Mn dopants increase the electrochemical active surface area and expose more active sites. This work provides a novel strategy for catalyst design, which is critical for developing multiple metal doped catalysts.

关键词： Multiple metallic dopants Oxygen evolution Electrocatalysts In situ Raman Nickel

The dynamic arms race during the early invasion of woodland strawberry by Botrytis cinerea revealed by dual dense high-resolution RNA-seq analyses

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Horticulture Research 2023年第12期10卷 175-189页

作者： Yibo Bai haibin wang Kaikai Zhu Zong-Ming Cheng College of Horticulture Nanjing Agricultural UniversityNanjing 210095China Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China Ministry of AgricultureTropical Crops Genetic Resources InstituteChinese Academy of Tropical Agricultural SciencesHaikou 571101China Co-innovation Center for Sustainable Forestry in Southern China Nanjing Forestry UniversityNanjingJiangsu 210037China

Necrotrophic pathogens replicate massively upon colonizing plants,causing large-scale wilting and death of plant tissues.Under-standing both mechanisms of pathogen invasion and host response processes prior to symptom appearance and their key regulatory networks is therefore important for defense against pathogen attack.Here,we investigated the mechanisms of interaction between woodland strawberry(Fragaria vesca)leaves and gray mold pathogen(Botrytis cinerea)at 14 infection time points during the first 12 hours of the infection period using a dense,high-resolution time series dual transcriptomic analysis,characterizing the arms race between strawberry F.vesca and B.cinerea before the appearance of localized lesions.Strawberry leaves rapidly initiated strong systemic defenses at the first sign of external stimulation and showed lower levels of transcriptomic change later in the infection process.Unlike the host plants,B.cinerea showed larger-scale transcriptomic changes that persisted throughout the infection process.Weighted gene co-expression network analysis identified highly correlated genes in 32 gene expression modules between B.cinerea and strawberry.Yeast two-hybrid and bimolecular fluorescence complementation assays revealed that the disease response protein FvRLP2 from woodland strawberry interacted with the cell death inducing proteins BcXYG1 and BcPG3 from B.cinerea.Overexpression of FvRLP2 in both strawberry and Arabidopsis inhibited B.cinerea infection,confirming these genes’respective functions.These findings shed light on the arms race process by which B.cinerea invades host plants and strawberry to defend against pathogen infection.

关键词： straw fir invasion

High-order sum-of-squares structured tensors:theory and applications

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Frontiers of Mathematics in China 2020年第2期15卷 255-284页

作者： haibin CHEN Yiju wang Guanglu ZHOU School of Management Science Qufu Normal UniversityRizhao 276826China Department of Mathematics and Statistics Curtin UniversityPerthWAAustralia

Tensor decomposition is an important research area with numerous applications in data mining and computational neuroscience.An important class of tensor decomposition is sum-of-squares(SOS)tensor decomposition.SOS tensor decomposition has a close connection with SOS polynomials,and SOS polynomials are very important in polynomial theory and polynomial optimization.In this paper,we give a detailed survey on recent advances of high-order SOS tensors and their applications.It first shows that several classes of symmetric structured tensors available in the literature have SOS decomposition in the even order symmetric case.Then,the SOS-rank for tensors with SOS decomposition and the SOS-width for SOS tensor cones are established.Further,a sharper explicit upper bound of the SOS-rank for tensors with bounded exponent is provided,and the exact SOS-width for the cone consists of all such tensors with SOS decomposition is identified.Some potential research directions in the future are also listed in this paper.

关键词： Sum-of-squares(SOS)tensor positive semi-definite(PSD)tensor H-eigenvalue structured tensor

Solution structures of tensor complementarity problem

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Frontiers of Mathematics in China 2018年第4期13卷 935-945页

作者： Xueyong wang haibin CHEN Yiju wang School of Management Science Qufu Normal University Rizhao 276800 China

我们介绍叫的张肌的二种新类型严格地 semimonotone 张肌和范围列足够的张肌并且探索他们的结构性质。基于获得的结果，我们做描述到张肌补充的答案问题。

关键词：结构性质张量数学理论研究