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Non-fullerene small molecule electron acceptors for high-performance organic solar cells

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Journal of Energy Chemistry 2018年第4期27卷 990-1016页

作者： Hao lin qiang Wang Key Laboratory of Applied Surface and Colloid Chemistry National Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and Engineering Shaanxi Normal University

Fullerenes and their derivatives are important types of electron acceptor materials and play a vital role in organic solar cell devices. However, the fullerene acceptor material has some difficulties to overcome the intrinsic shortcomings, such as weak absorption in the visible range, difficulty in modification and high cost, which limit the performance of the device and the large-scale application of this type of acceptors. In recent years, non-fullerene electron acceptor material has attracted the attention of scientists due to the advantages of adjustable energy level, wide absorption, simple synthesis, low processing cost and good solubility. Researchers can use the rich chemical means to design and synthesize organic small molecules and their oligomers with specific aggregation morphology and excellent optoelectronic prop- erties. Great advances in the field of synthesis, device engineering, and device physics of non-fullerene acceptors have been achieved in the last few years. At present, non-fullerene small molecules based photovoltaic devices achieve the highest efficiency more than 13% and the efficiency gap between fullerenetype and non-fullerene-type photovoltaic devices is gradually narrowing. In this review, we explore recent progress of non-fullerene small molecule electron acceptors that have been developed and led to highefficiency photovoltaic devices and put forward the prospect of development in the future.

关键词： Organic solar cells Non-fullerene Electron acceptors Bulk heterojunction

The Role of Endoplasmic Reticulum Stress-related Apoptosis in Vascular Endothelium Pathogenesis

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Biomedical and Environmental Sciences 2018年第7期31卷 555-559页

作者： TAO Yong Kang SHI Jing YU Pu lin ZHANG guo qiang Departments of Emergency China-Japan Friendship Hospital Department of Deriatric Medicine Beijing Hospital National Center of Gerontology

Vascular endothelium refers to a single layer of endothelial cells that line the inner surface of blood vessels,serving as barriers and transducers between the circulating blood in the lumen and the rest of the vessel *** cells play essential roles in many aspects of vascular biology,such as barrier functions,thrombosis/fibrinolysis,inflammation,angiogenesis,vasoconstriction and vasodilation.

关键词： ER UPR GRP The Role of Endoplasmic Reticulum Stress-related Apoptosis in Vascular Endothelium Pathogenesis HUVECs

Kalman Filter-Based Fusion Estimation Method of Steering Feedback Torque for Steer-by-Wire Systems

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Automotive Innovation 2021年第4期4卷 430-439页

作者： lin Zhang qiang Meng Hong Chen Yanjun Huang Yang Liu Konghui guo School of Automotive Studies Tongji UniversityShanghaiChina Clean Energy Automotive Engineering Center Tongji UniversityShanghaiChina KH Automotive Technologies Co LtdChangchunChina

Universal challenge lies in torque feedback accuracy for steer-by-wire systems,especially on uneven and low-friction ***,this paper proposes a fusion method based on Kalman filter that combines a dynamics-reconstruction method and disturbance observer-based *** dynamics-reconstruction method is designed according to the vehicle dynamics and used as the prediction model of the Kalman *** the disturbance observer-based method is performed as an observer model of the Kalman *** performance of all three methods is comprehensively evaluated in a hardware-in-the-loop *** results show that the proposed fusion method outperforms dynamics reconstruction method and disturbance observer-based ***,compared with the dynamics-reconstruction method,the root mean square error is reduced by 36.58%at the maximum on the flat *** with the disturbance observer-based method,the root mean square error is reduced by 39.11%at the maximum on different-friction and uneven road.

关键词： Kalman filter Steering feedback torque estimation Steer-by-wire system

Assessment of damage to buildings and farms during the 2011 M 9.0 earthquake and tsunami in Japan from remote sensing data

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Chinese Science Bulletin 2011年第20期56卷 2138-2144页

作者： guo HuaDong CHEN Yu FENG qiang lin QiZhong WANG Fei Center for Earth Observation and Digital Earth Chinese Academy of SciencesBeijing 100094China

At 13:46 on March 11,2011(Beijing time),a great earthquake of magnitude of 9.0 occurred off the Pacific coast of northeastern Japan(Tohoku Region).After the earthquake,the Center for Earth Observation and Digital Earth(CEODE),Chinese Academy of Sciences,quickly launched a major disaster emergency response to assess the *** this paper,we have extracted buildings and farms in the heavily devastated area that includes Iwate,Miyagi,and Fukushima Prefectures,based on multi-spectral remote sensing *** have assessed building damage by overlaying seismic intensity and building *** addition,we have assessed the extent of building and farm damage caused by the tsunami through the establishment of a tsunami impact assessment model that is based on terrain and distance from the *** results were partially verified by high-resolution images obtained after the *** results show that about 76% of buildings in Miyagi Prefecture were affected by seismic intensity 6 and above,with 24% of the buildings and 12% of the farms destroyed by the *** huge losses were echoes at lesser amounts in Fukushima and *** results provide the support of basic data,which can be further developed by economic and social aspects of the disaster assessment.

关键词：影响评估模型遥感数据建筑物大地震海啸农场数据损坏日本

Deciphering fungal metabolon coupling tandem inverse-electrondemand Diels-Alder reaction and semipinacol rearrangement for the biosynthesis of spiro polycyclic alkaloids

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Science China Chemistry 2025年第01期 288-296页

作者： Shuai Liu Wen-qiang Xu Ying-Tong Di Man-Cheng Tang Ding-Kang Chen Ming-Ming Cao Yao-Wen Chang Hong-Yu Tang Chun-Mao Yuan Jun-Bo Yang Zhi-Li Zuo Han guo Zi-Fei Xu Ying Zeng Yun-Dong Wu Xiao-Jiang Hao Key Laboratory of Phytochemistry and Natural Medicines (Chinese Academy of Sciences) Kunming Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen Bay Laboratory State Key Laboratory of Microbial Metabolism School of Life Sciences & Biotechnology Shanghai Jiao Tong University State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Molecular Biology Experimental Center Germplasm Bank of Wild Species in Southwest China Kunming Institute of Botany Chinese Academy of Sciences Yunnan Key Laboratory for Wild Plant Resources Kunming Institute of Botany Chinese Academy of Sciences Research Unit of Chemical Biology of Natural Anti-Virus Products Chinese Academy of Medical Sciences

In the intricate process of natural product biosynthesis, a metabolon can enhance metabolic flux by associating sequential enzymes. A fungal metabolon, comprising of flavin-dependent monooxygenase Spe F and P450 monooxygenase Spe G, is identified in the biosynthesis of spiro polycyclic alkaloids(+)-notoamide B and its diastereomer(+)-versicolamide B. Using notoamide E as a substance, Spe F/Spe G metabolon can control the stereoselectivity of its 2,3-epoxidation, followed by hydrogen atom ion at C-17 to generate reactive epoxide tau-m A with dienyl iminium unit. Subsequently,(+)-notoamide B and(+)-versicolamide B are produced via tandem nonenzymatic inverse-electron-demand Diels-Alder reaction and semipinacol rearrangement. This provides the first example of metabolon in the biosynthesis of spiro-prenylated indole alkaloids.

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Increased Tibetan Plateau vortex activities under 2℃warming compared to 1.5℃warming:NCAR CESM low-warming experiments

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Advances in Climate Change Research 2021年第3期12卷 322-332页

作者： lin Zhi-qiang guo Wei-Dong GE Jun WU Run-Qi DU Jun School of Atmospheric Sciences Nanjing UniversityNanjing210023China Tibet Institute of Plateau Atmospheric and Environmental Science Lhasa850000China

The Tibetan Plateau vortices(TPVs)are the major rain-producing systems over the Tibetan Plateau(TP).The activities of TPVs are closely related to TP's water source,which supplies fresh water to millions of people in *** of the TPVs can increase understanding about the future of water supply in Asia under global *** this study,the possible activities of TPVs under 1.5℃and 2℃warming scenarios above the pre-industrial level are evaluated through the NCAR CESM(Community Earth System Model)Low-warming(CESM-LW)*** results show that the CESM-LW well reproduces the spatio-temporal characteristics of TPVs in the historical run from 1985 to *** CESM-LW suggests TPVs in warm season(May-September)increase by 15%due to the additional 0.5℃warming by the end of this century(2071—2100).It implies the greater importance of TPVs to the precipitation over the TP in the *** changes of TPVs are closely related to the large-scale circulations *** additional 0.5℃warming strengthens the temperature difference between the TP and its surrounding areas,which results in an enhanced convergence near the TP's surface and divergence in the upper troposphere by about-0.1×10^(-6)and 0.22×10^(6)s^(-1),*** assessment of future TPVs provides a synoptic dynamic perspective on the climate change of precipitation and water resources.

关键词： Tibetan Plateau vortex 2℃and 1.5℃warming Paris agreement Tibet plateau heating Low-warming scenarios

Global Dynamic Responses and Progressive Failure of Submerged Floating Tunnel Under Cable Breakage Conditions

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China Ocean Engineering 2024年第4期38卷 676-688页

作者： ZHOU Xiang-bo QIAO Dong-sheng WANG Ming TANG guo-qiang LU lin OU Jinping State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116024China

The Submerged Floating Tunnel(SFT)relies on a tensioned mooring system for precise *** sudden breakage of a single cable can trigger an immediate alteration in the constraint conditions of the tube,inducing a transient heave response within the structure along with a transient increase in cable tension experienced by adjacent *** more severe cases,this may even lead to a progressive failure culminating in the global destruction of the *** study used ANSYS/AQWA to establish a numerical model of the entire length SFT for the hydrodynamic response analysis,and conducted a coupled calculation of the dynamic responses of the SFT-mooring line model based on Orca Flex to study the global dynamic responses of the SFT at the moment of cable breakage and the redistribution of cable internal *** most unfavorable position for SFT cable breakage was identified,the influence mechanism of cable breakage at different positions on the global dynamic response was revealed,and the progressive chain failure pattern caused by localized cable breakage are also clarified.

关键词： submerged floating tunnel cable breakage global dynamic responses progressive failure

Spontaneous Infection and Periodic Evolving of Domain in a Diffusive SIS Epidemic Model

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Acta Mathematicae Applicatae Sinica 2024年第1期40卷 164-191页

作者： qiang Wen guo-qiang Ren Bin Liu School of Mathematics and Statistics Huazhong University of Science and TechnologyWuhan430074China Hubei Key Laboratory of Engineering Modeling and Scientific Computing Huazhong University of Science and TechnologyWuhan430074China

In this paper, we consider a susceptible-infective-susceptible(SIS) reaction-diffusion epidemic model with spontaneous infection and logistic source in a periodically evolving domain. Using the iterative technique,the uniform boundedness of solution is established. In addition, the spatial-temporal risk index R0(ρ) depending on the domain evolution rate ρ(t) as well as its analytical properties are discussed. The monotonicity of R0(ρ)with respect to the diffusion coefficients of the infected dI, the spontaneous infection rate η(ρ(t)y) and interval length L is investigated under appropriate conditions. Further, the existence and asymptotic behavior of periodic endemic equilibria are explored by upper and lower solution method. Finally, some numerical simulations are presented to illustrate our analytical results. Our results provide valuable information for disease control and prevention.

关键词： diffusive SIS model spontaneous infection periodically evolving domain periodic endemic equilibrium

A Cheeger-Müller Theorem for Delocalized L^(2)-analytic Torsion Form

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Acta Mathematica Sinica,English Series 2024年第11期40卷 2615-2670页

作者： guo lin AN Chern Institute of Mathematics and LPMC Nankai UniversityTianjin300071P.R.China

In this paper we define the delocalized L^(2)-analytic torsion form and the delocalized L^(2)-combinatorial torsion *** using the method of Bismut-Goette,under the conditions of positive Novikov-Shubin invariants,nontrivial finite conjugacy class and the existence of a family of fiberwise Morse functions whose gradient fields satisfy the Thom-Smale transversality condition in every fiber,we prove the Cheeger-Müller type relation between the delocalized L^(2)-analytic torsion form and the delocalized L^(2)-combinatorial torsion form.

关键词： Delocalized trace Novikov-Shubin invariant delocalized L^(2)-analytic torsion form delocalized L^(2)-combinatorial torsion form