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Heteroheptacene-based acceptors with thieno[3,2-b]pyrrole yield high-performance polymer solar cells

National Science Review 2022年第7期9卷 106-115页

作者： Zhenghui Luo Ruijie Ma Jianwei Yu Heng Liu Tao Liu Fan Ni Jiahao Hu yang zou Anping Zeng Chun-Jen Su U-Ser Jeng Xinhui Lu Feng Gao Chuluo yang He Yan Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and EngineeringShenzhen University Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction Hong Kong University of Science and Technology (HKUST) Hong Kong University of Science and Technology-Shenzhen Research Institute Department of Physics Chemistry and Biology (IFM) Link?ping University Department of Physics Chinese University of Hong Kong Synchrotron Radiation Research Center Hsinchu Science Park Department of Chemical Engineering Tsing Hua University Hong Kong University of Science and Technology (HKUST) Light-Emitting Diode and Flat Panel Display Technology Research & Development Center Hong Kong University of Science and Technology (HKUST) Foshan Research Institute for Smart Manufacturing

Rationally utilizing and developing synthetic units is of particular significance for the design of high-performance non-fullerene small-mole cule acceptors(SMAs).Here,a thieno[3,2-b]pyrrole synthetic unit was employed to develop a set of SMAs(ThPy1,ThPy2,ThPy3 and ThPy4) by changing the number or the position of the pyrrole ring in the central core based on a standard SMA of IT-4 Cl,compared to which the four thieno[3,2-b] pyrrole-based acceptors exhibit bathochromic absorption and upshifted frontier orbital energy level due to the strong ele ctron-donating ability of *** a result,the polymer solar cells(PSCs) of the four thieno[3,2-b] pyrrole-based acceptors yield higher open-circuit voltage and lower energy loss relative to those of the IT-4 Cl-based *** is more,the ThPy3-based device achieves a power conversion efficiency(PCE)(15.3%) and an outstanding fill factor(FF)(0.771) that are superior to the IT-4 Cl-based device(PCE=12.6%,FF=0.758).The ThPy4-based device realizes the lowest energy loss and the smallest optical band gap,and the ternary PSC device based on PM6:BTP-eC9:ThPy4 exhibits a PCE of 18.43% and a FF of ***,this work sheds light on the great potential of thieno[3,2-b]pyrrole-based SMAs in realizing low energy loss and high PCE.

关键词： thieno[3 2-b]pyrrole small-molecule acceptors energy loss intramolecular non-covalent interactions polymer solar cells

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Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows

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Animal Nutrition 2016年第3期2卷 249-252页

作者： yang zou Shuangzhao Dong Yun Du Shengli Li Yajing Wang Zhijun Cao State Key Laboratory of Animal Nutrition Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control College of Animal Science and TechnologyChina Agricultural University

A study using four Holstein cows with ruminal cannulas was conducted to evaluate the degradability of different moisture content or particle size of maize silage and alfalfa haylage. The maize silage(MS; 20-mm length) and alfalfa haylage(AH; 40-mm length) samples were wet(wet maize silage, MSW;wet alfalfa haylage, AHW), dried(dried maize silage, MSD; dried alfalfa haylage, AHD), or ground to pass through a 2.5-mm screen(dried ground maize silage, MSG; dried ground alfalfa haylage, AHG). Samples were incubated in the rumen for 2, 6.12, 24.36.48, and 72 h. Cows were fed ad libitum and allowed free access to water. High moisture content treatment of MSW expressed a lower rinsing NDF and ADF degradability at 2 h(P < 0.05) compared with dried samples(MSD and MSG). Different moisture content and particle size had a significant impact(P < 0.05) on the NDF degradability at 72 h, ADF degradability at36.48, and 72 h, and ruminally degradable ADF. All of the highest values were observed in small particle size and low moisture content AHG treatment. Based on this study, sample processing, such as drying and grinding, should be considered when evaluating nutritive values of forages.

关键词： Alfalfa haylage Degradability Lactating cows Maize silage

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Study on neutronics design of ordered-pebble-bed fluoride-salt- cooled high-temperature experimental reactor

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Nuclear Science and Techniques 2018年第6期29卷 36-44页

作者： Rui Yan Shi-He Yu yang zou Qun yang Bo Zhou Pu yang Hong-Hua Peng Ya-Fen Liu Ye Dai Rui-Ming Ji Xu-Zhong Kang Xing-Wei Chen Ming-Hai Li Xiao-Han Yu Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China University of Chinese Academy of Sciences Beijing 100049China

This paper presents a neutronics design of a 10 MW ordered-pebble-bed fluoride-salt-cooled high-temperature experimental reactor. Through delicate layout, a core with ordered arranged pebble bed can be formed,which can keep core stability and meet the space requirements for thermal hydraulics and neutronics ***, objectives of the core include inherent safety and sufficient excess reactivity providing 120 effective full power days for experiments. Considering the requirements above, the reactive control system is designed to consist of 16 control rods distributed in the graphite reflector. Combining the large control rods worth about 18000–20000 pcm, molten salt drain supplementary means(-6980 to -3651 pcm) and negative temperature coefficient(-6.32 to -3.80 pcm/K) feedback of the whole core, the reactor can realize sufficient shutdown margin and safety under steady state. Besides, some main physical properties, such as reactivity control, neutron spectrum and flux, power density distribution, and reactivity coefficient,have been calculated and analyzed in this study. In addition, some special problems in molten salt coolant are also considered, including ~6Li depletion and tritium production.

关键词：中子物理学反应堆试验性高温度学习设计脉冲编码调制控制系统

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Induced neural stem cells regulate microglial activation through Akt-mediated upregulation of CXCR4 and Crry in a mouse model of closed head injury

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Neural Regeneration Research 2025年第5期20卷 1416-1430页

作者： Mou Gao Qin Dong Dan zou Zhijun yang Lili Guo Ruxiang Xu Department of Neurosurgery Sichuan Academy of Medical Sciences and Sichuan Provincial People’s HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengduSichuan ProvinceChina Department of Neurosurgery Chinese PLA General HospitalBeijingChina Department of Neurology Fu Xing HospitalCapital Medical UniversityBeijingChina

Microglial activation that occurs rapidly after closed head injury may play important and complex roles in neuroinflammation-associated neuronal damage and *** previously reported that induced neural stem cells can modulate the behavior of activated microglia via CXCL12/CXCR4 signaling,influencing their activation such that they can promote neurological ***,the mechanism of CXCR4 upregulation in induced neural stem cells remains *** this study,we found that nuclear factor-κB activation induced by closed head injury mouse serum in microglia promoted CXCL12 and tumor necrosis factor-αexpression but suppressed insulin-like growth factor-1 ***,recombinant complement receptor 2-conjugated Crry(CR2-Crry)reduced the effects of closed head injury mouse serum-induced nuclear factor-κB activation in microglia and the levels of activated microglia,CXCL12,and tumor necrosis factor-α.Additionally,we observed that,in response to stimulation(including stimulation by CXCL12 secreted by activated microglia),CXCR4 and Crry levels can be upregulated in induced neural stem cells via the interplay among CXCL12/CXCR4,Crry,and Akt signaling to modulate microglial *** agreement with these in vitro experimental results,we found that Akt activation enhanced the immunoregulatory effects of induced neural stem cell grafts on microglial activation,leading to the promotion of neurological recovery via insulin-like growth factor-1 secretion and the neuroprotective effects of induced neural stem cell grafts through CXCR4 and Crry upregulation in the injured cortices of closed head injury ***,these beneficial effects of Akt activation in induced neural stem cells were positively correlated with the therapeutic effects of induced neural stem cells on neuronal injury,cerebral edema,and neurological disorders post–closed head *** conclusion,our findings reveal that Akt activation may enhance the immunoregulatory effects of induced neura

关键词： Akt signaling cerebral edema closed head injury Crry CXCR4 induced neural stem cell microglia neuroinflammation

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Preparation of Microporous Corundum and Its Effect on Properties of Al_2O_3-MgO Castables

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China's Refractories 2014年第4期23卷 22-26页

作者： GU Huazhi HUANG Ao ZHANG Meijie LI Zhengkun MA Lieying DU Bo zou yang The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science&Technology Jiangsu Jingxin High-Temperature Materials Co. Ltd. Zhejiang Zili Co. Ltd.

Based on the pore size design of microporous aggregate by numerical simulation applying porous media model,α-Al2O3 micropowder,industrial Al2 O3fine powder,α-Al2O3 micropowder ＋ CaCO3 fine powder were used as starting materials,respectively,to prepare three microporous corundum aggregates specimens,named as A1,A2 and *** lightweight Al2O3-MgO castables were prepared by selecting A1 or A3 as aggregate with O.6 μm of average pore size,then performances of castables with microporous corundum aggregates and castables with tabular corundum aggregates were *** results show that：（1） the microporous corundum aggregates with bulk density of 3.1-3.5 g · cm-3,apparent porosity of 5％,closed porosity of 8％-13％,and smaller thermal conductivity at 800 ℃ than tabular corundum,can be prepared by sintering at above 1 800 ℃ ; （2） compared to normal Al2 O3-MgO castables,the two lightweight Al2O3-MgO castables have lower bulk density and higher apparent porosity;lower change rate in dimensions and higher strength firing at 1 500 ℃ ; and lower thermal conductivity at 600 and 800 ℃ ; （3） compared to normal Al2O3-MgO castables,Al2O3-MgO castable with A1 has higher penetration index,and that with A3 has higher corrosion index and lower penetration index.

关键词： microporous corundum aggregates alumina-magnesia castables thermal conductivity corrosion index

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A study on the numerical prediction method for the vertical thermal structure in the Bohai Sea and the Huanghai ***-dimensional numerical prediction model

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Acta Oceanologica Sinica 1992年第1期11卷 25-34页

作者： Wang Zongshan, Xu Bochang, zou Emei, yang Keqi Li Fanhua First Institute of Oceanography, State Oceanic Administration, Qingdao 266003, China

In this paper, on the basis of the heat conduction equation without consideration of the advection and turbulence effects, one-dimensional model for describing surface sea temperature ( T1), bottom sea temperature ( Tt ) and the thickness of the upper homogeneous layer ( h ) is developed in terms of the dimensionless temperature θT and depth η and self-simulation function θT - f(η) of vertical temperature profile by means of historical temperature *** results of trial prediction with our one-dimensional model on T, Th, h , the thickness and gradient of thermocline are satisfactory to some extent.

关键词： A study on the numerical prediction method for the vertical thermal structure in the Bohai Sea and the Huanghai Sea-I.One-dimensional numerical prediction model

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Degradation mechanism of rock under impact loadings by integrated investigation on crack and damage development

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Journal of Central South University 2014年第12期21卷 4646-4652页

作者：周子龙江益辉邹洋翁磊 School of Resources and Safety Engineering Central South University

Failure of rock under impact loadings involves complex micro-fracturing and progressive damage. Strength increase and splitting failure have been observed during dynamic tests of rock materials. However, the failure mechanism still remains unclear. In this work, based on laboratory tests, numerical simulations with the particle flow code(PFC) were carried out to reproduce the micro-fracturing process of granite specimens. Shear and tensile cracks were both recorded to investigate the failure mode of rocks under different loading conditions. At the same time, a dynamic damage model based on the Weibull distribution was established to predict the deformation and degradation behavior of specimens. It is found that micro-cracks play important roles in controlling the dynamic deformation and failure process of rock under impact loadings. The sharp increase in the number of cracks may be the reason for the strength increase of rock under high strain rates. Tensile cracks tend to be the key reason for splitting failure of specimens. Numerical simulation of crack propagation by PFC can give vivid description of the failure process. However, it is not enough for evaluation of material degradation. The dynamic damage model is able to predict the stress-strain relationship of specimens reasonably well, and can be used to explain the degradation of specimens under impact loadings at macro-scale. Crack and damage can describe material degradation at different scales and can be used together to reveal the failure mechanism of rocks.

关键词： impact loading dynamic failure particle flow code crack damage

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A wearable noncontact free-rotating hybrid nanogenerator for self-powered electronics

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InfoMat 2020年第6期2卷 1191-1200页

作者： Dongjie Jiang Han Ouyang Bojing Shi yang zou Puchuan Tan Xuecheng Qu Shengyu Chao Yuan Xi Chaochao Zhao Yubo Fan Zhou Li CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijingChina Beijing Advanced Innovation Centre for Biomedical Engineering Key Laboratory for Biomechanics and Mechanobiology of Ministry of EducationSchool of Biological Science and Medical EngineeringBeihang UniversityBeijingChina School of Nanoscience and Technology University of Chinese Academy of SciencesBeijingChina Department of Biomedical Engineering School of Medical EngineeringFoshan UniversityFoshanChina

Self-powerability is a new trend in the development of portable *** biomechanical energy to power personal information electronics is of great *** this work,we report a wearable noncontact freerotating hybrid nanogenerator(WRG),which is constituted by a triboelectric nanogenerator and an electromagnetic generator.A continuous output over 2 seconds can be achieved during one instantaneous incentive by external force,which is improved by two orders of magnitude compared to other wearable nanogenerators due to its unique mechanical energy storage *** WRG can be integrated into shoes to generate an output energy of 14.68 mJ in each stepping,which meets the power requirements of most personal information *** wireless sensor,GPS,and smartphone can be powered by the WRG *** WRG is expected to be applied in self-powered information electronics extensively in the future.

关键词： electromagnetic generator hybrid nanogenerator self-powered electronics triboelectric nanogenerator wearable electronics

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Epibulbar Osseous Choristoma in the Lateral Rectus

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Chinese Medical Journal 2017年第14期130卷 1763-1764页

作者： Fan-Xue Kong Ji-yang zou Xiang Ma Department of Ophthalmology The First Affiliated Hospital of Dalian Medical University Dalian Liaoning 116001 China Department of Orthopaedics The First Affiliated Hospital of Dalian Medical University Dalian Liaoning 116001 China

To the Editor：Osseous choristoma is the rarest type of the epibulbar *** is a form of benign congenital tumor first described by von Graefe as an epibulbar osteoma in 1863.[1] Most epibulbar osseous choristomas are found in the superotemporal *** adhere generally to the episclera and the conjunctiva and might involve the muscle.[1,2] Previous report stated that females account for 69% of cases,the right eye for 76%,and superotemporal localization for 74% of cases.[3] According to PubMed-based research,76 cases of epibulbar osseous choristoma were reported up to ***,we reported a rare case that localized in the left lateral rectus.

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我国新能源和可再生能源的替代效应分析

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经济体制改革 2015年第6期 185-190页

作者：邹洋四川大学经济学院西南交通大学研究生院

新能源和可再生能源的规模化发展能够有效缓解化石能源约束给经济社会发展带来的影响。在合理控制能源消费总量的背景下,本文根据"十二五"规划中提出的GDP增速目标和能耗目标,设定了3种情景模式,测算出到2020年在3种情境下新能源和可再... 详细信息

新能源和可再生能源的规模化发展能够有效缓解化石能源约束给经济社会发展带来的影响。在合理控制能源消费总量的背景下,本文根据"十二五"规划中提出的GDP增速目标和能耗目标,设定了3种情景模式,测算出到2020年在3种情境下新能源和可再生能源在能源消费总量中的比重,并提出了新能源和可再生能源的发展对传统化石能源的替代必须充分考虑经济效益,走规模化发展的道路。要实现新能源和可再生能源的规模化发展和对传统化石能源的替代,需要从传统能源与新能源之间的体制改革、政策支持体系、长效创新机制和技术支撑等方面进行创新,推动新能源和可再生能源的发展。

关键词：新能源和可再生能源替代效应对策建议

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