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Chinese Journal of Aeronautics 2024年第7期37卷 109-133页

作者： Jianfei WEI Silong ZHANG Jingying zuo Xin LI Jiang QIN Wen BAO School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001China

Supersonic fuel film cooling is a promising way to simultaneously reduce the severe wall heat and friction load of the internal passage in a scramjet engine when operating at hypersonic *** eddy simulations were performed to investigate the cooling and wall friction characteristics of hydrogen and hydrocarbon films under inert and reactive *** results show that the essential difference of the turbulent state in the mixing layer contributes to the totally different behaviors of the cooling and wall friction reduction performances of the two fuel *** turbulent transport processes between the hydrogen film and the mainstream are much weaker as compared to the case of hydrocarbon film,making inert hydrogen rather superior in cooling and friction reduction ***,the increase of wall temperature for hydrogen film under the inert case is mainly driven by the loss of hydrogen with high heat capacity instead of by direct heat ***,the film cooling performance severely deteriorates when the hydrogen film burns due to presence of severe heat release sources near the *** the other hand,combustion of hydrocarbon film in the boundary layer can remarkably improve its originally barely-satisfactory cooling and friction reduction performance to the level comparable to that of hydrogen film,due to the suppression of turbulent transport processes in the mixing layer and presence of heat absorption sources near the ***,the hydrogen film is more advantageous in friction reduction,while the hydrocarbon film is more suitable for cooling.

关键词： Supersonic film cooling Hydrogen Hydrocarbon Boundary layer combustion Large eddy simulation

Tributyltin causes generational neurodevelopmental toxicity and the protective effect of folic acid in zebrafish

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Journal of Environmental Sciences 2024年第3期137卷 615-625页

作者： Haoxing Cai Naying Zheng Chen Tang Yuxuan Zhang Zhenghong zuo Chengyong He State Key Laboratory of Cellular Stress Biology School of Life SciencesFaculty of Medicine and Life SciencesXiang’an Hospital of Xiamen UniversityXiamen UniversityXiamen 361005China

Tributyltin(TBT),a common organotin environmental pollutant,may pose a threat to human development during critical early-life *** aimed to assess the neurodevelopmental intergenerational toxicity of early-life exposure to TBT and the protective effect of DNA methyl donor folic acid(FA).Specifically,after early-life exposure(1–21 days postfertilization,dpf)to TBT(0,1,10 and 100 ng/L),zebrafish(Danio rerio)were cultured in clean medium until sexual *** exposed females were mated with unexposed males to produce embryos(F1).The F1 generation were cultured(4–120 hours post-fertilization,hpf)with and without 1 mmol/L *** neurotoxic effects of early-life TBT exposure for zebrafish and their offspring(F1)were significantly enhanced anxiety and reduced aggression,decreased gene expression of DNA methyltransferase in the brain and increased serotonin levels in the ***,the intergenerational neurodevelopmental toxicity,as manifested in the F1 generation,was attenuated by FA *** summary,early-life TBT exposure led to intergenerational neurodevelopmental deficits in zebrafish,and DNA methyl donors had a protective effect on F1 neurodevelopment,which can inform the prevention and treatment of intergenerational neurotoxicity due to organotin pollutants.

关键词： Tributyltin Neurodevelopment Intergeneration DNA methylation Folic acid Zebrafish

Developments and challenges on enhancement of photocatalytic CO_(2)reduction through photocatalysis

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Carbon Resources Conversion 2024年第3期7卷 106-120页

作者： Haiquan Wang Qingjie Guo Hongyan Zhang Cheng zuo College of Chemistry&Chemical and Environmental Engineering Weifang UniversityWeifangPeople’s Republic of China State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering College of Chemistry and Chemical EngineeringNingxia UniversityYinchuanPeople’s Republic of China

The conversion of CO_(2)into high-value fuels and chemicals has garnered research interest *** conversion and utilization of CO_(2)has become one of the most urgent tasks for *** this context,using solar energy to convert CO_(2)into high-value fuels such as CH4 and CH_(3)OH has extremely high potential application ***,the research progress and results of applying various photocatalysts in photocatalytic CO_(2)reduction with various novel catalysts were ***,strategies for improving photocatalytic performance were ***,improving the catalytic mechanism of catalysts and designing novel highactivity,high-stability catalysts through comprehensive exploration of the reaction mechanism were suggested to meet the future requirements of industrial production.

关键词： CO_(2)photoreduction Photocatalyst Charge separation CO_(2)conversion technology

Distribution of modified Circumpolar Deep Water and its threat in Vincennes Bay,East Antarctica

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Journal of Oceanology and Limnology 2024年第5期42卷 1399-1414页

作者： Wenjun YE Lingqiao CHENG Yujiro KITADE Song HU Juncheng zuo College of Oceanography and Ecological Science Shanghai Ocean UniversityShanghai 201306China Key Laboratory of Marine Ecological Monitoring and Restoration Technologies Ministry of Natural ResourcesShanghai 201306China Department of Ocean Sciences Tokyo University of Marine Science and TechnologyTokyo 108-8477Japan

The Antarctic Bottom Water formation site Vincennes Bay,East Antarctica is experiencing a substantial intrusion of modified Circumpolar Deep Water(mCDW),which may inhibit the formation of Dense Shelf Water(DSW)and drive basal melting of the ice *** on hydrographic data obtained from March to November in 2012,we evaluated the spatial spread of mCDW over the continental shelf region of Vincennes Bay and the associated temporal evolution of water properties,as well as the sea ice formation effect on water column in the coastal *** show that two branches of mCDW occupied the deep layers of the continental shelf,distinguished by the potential density(smaller than 27.8 kg/m^(3) or not)when potential temperatureθ=0.5°C in theθ-salinity *** warmer and less dense branch observed on the east plateau,accessed the eastern ice shelves in the coastal polynya to drive basal melting of ice *** contrast,the other colder and denser branch in the mid-depression reached the western Underwood Ice *** formation was detectable in the coastal polynya during September-November,proving the occurrence of deep *** heat loss and brine rejection during the intensive sea ice formation contributed to the destratification of the water column in the coastal *** was estimated that at least 1.11±0.79 TW heat carried by mCDW into the inner part of the polynya.

关键词： modified circumpolar deep water evolution of water properties coastal polynya ice shelf Vincennes Bay

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智慧与智育漫话

复旦教育论坛 2007年第5期5卷 16-21页

作者：杜作润复旦大学高等教育研究所上海200433

智慧与教育有联系,但从教育到养成智慧,还需要有一个飞跃。要实现这一飞跃,首先应该思考智慧到底是什么,其次应该思考现时代我们需要什么样的智慧,同时还要下决心反思我们的教育,特别是反思其中的智育。

关键词：智慧智育发明创造悲天悯人

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浅论教育的素质

大学教育科学 2006年第3期 14-21页

作者：杜作润复旦大学高等教育研究所上海200433

分析了我们的素质教育这个词语,它隐藏的同义反复毛病及其在实践上的模糊性;之后,推荐使用另外一个词语,教育的素质。文章认为,新词所关注的,显然就是提高教育质量的核心问题。全文的要旨在于说明,欲使我们的教育质量提高,首先要从影响... 详细信息

分析了我们的素质教育这个词语,它隐藏的同义反复毛病及其在实践上的模糊性;之后,推荐使用另外一个词语,教育的素质。文章认为,新词所关注的,显然就是提高教育质量的核心问题。全文的要旨在于说明,欲使我们的教育质量提高,首先要从影响特别是主导教育的群体自身开始,即改进教育的素质。这是提高教育质量进而提高全民族素质的关键。

关键词：素质教育应试教育教育质量教育方针教育研究高等教育

脉冲强激光破坏Hg_(0.8)Cd_(0.2)Te晶片材料的机理分析

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强激光与粒子束 2006年第6期18卷 927-930页

作者：蔡虎程祖海朱海红左都罗华中科技大学激光技术国家重点实验室武汉430074

利用光学金相显微镜对TEA-CO2脉冲强激光辐照的Hg0.8Cd0.2Te晶片表面进行了观察。在单脉冲能量为37.5 J,能量密度为937.5 J/cm2的强激光辐照下,晶片表面呈现出熔融迹象和大量的微裂纹,微裂纹密度从激光辐照区中心向外逐渐减少,裂纹沿晶... 详细信息

利用光学金相显微镜对TEA-CO2脉冲强激光辐照的Hg0.8Cd0.2Te晶片表面进行了观察。在单脉冲能量为37.5 J,能量密度为937.5 J/cm2的强激光辐照下,晶片表面呈现出熔融迹象和大量的微裂纹,微裂纹密度从激光辐照区中心向外逐渐减少,裂纹沿晶体的(111)面扩展。随着脉冲连续作用次数的增加,晶片表面熔融更加剧烈,裂纹数目、裂纹深度和宽度都有所增加。分析认为:HgCdTe晶片的破坏与激光辐照能量、脉冲连续作用次数、激光场强分布、激光热应力、激光支持的燃烧波和物质的蒸发波等冲击波有关。

关键词： TEA-CO2脉冲激光 HgCdTe 裂纹破坏机理

TEA CO2激光器不同放电电路放电过程的比较

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强激光与粒子束 2008年第5期20卷 729-733页

作者：陈钰琦左都罗程祖海李啸华中科技大学武汉光电国家实验室(筹)激光科学与技术研究部

利用像增强CCD相机对脉冲CO2激光器的放电区进行观测,获得了放电辉光的发展过程,由此研究了长脉冲放电电路和短脉冲放电电路对放电过程的影响。发现普通电容放电电路(长脉冲放电电路)存在与自持放电阶段相对应的二次辉光;采用磁压缩开... 详细信息

利用像增强CCD相机对脉冲CO2激光器的放电区进行观测,获得了放电辉光的发展过程,由此研究了长脉冲放电电路和短脉冲放电电路对放电过程的影响。发现普通电容放电电路(长脉冲放电电路)存在与自持放电阶段相对应的二次辉光;采用磁压缩开关的短脉冲放电电路,预电离出现较晚,但预电离辉光峰值和主放电辉光峰值之间间距较短,不存在自持放电阶段,只观测到一次强辉光。长脉冲放电电路与短脉冲放电电路在放电的后期均存在一个阴极位降区形成的过程。短脉冲放电电路有利于产生更窄的脉宽和更高的峰值功率。

关键词： TEA CO2激光器脉冲放电电容放电开关磁压缩开关阴极位降区

Local Regularity Criteria for the 3D Co-rotational Beris-Edwards System in Lorentz Spaces

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Acta Mathematicae Applicatae Sinica 2024年

作者： Zhong-bao zuo School of Mathematics and Statistics Central South University

In this paper, we present some new regularity criteria for suitable weak solutions to the 3D corotational Beris-Edwards system. First, we prove that suitable weak solutions are regular if the scaled Lp;q-norm of the velocity field or gradient of velocity is small with 2/p+3/q= 2, 1 < p ≤ ∞. Next, we give ε-regularity criteria in terms of velocity field u and director field Q in Lorentz spaces, which extends the results obtained by Wang et al(J. Evol. Equ. 21:1627-1650, 2021) for Navier-Stokes equations.

关键词：

The Potential Game-Changer:A Concept-to-Proof Study on D:A Heterojunction-Free Organic Photovoltaics

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Chinese Journal of Chemistry 2024年第3期42卷 252-258页

作者： Lijian zuo Sae Byeok Jo Xueliang Shi Francis Lin Alex Jen State Key Laboratory of Silicon and Advanced Semiconductor Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhouZhejiang310058 China Department of Materials Science and Engineering University of WashingtonSeattleWAUSA School of Chemical Engineering Sungkyunkwan University (SKKU)Suwon16419 Republic of Korea School of Chemistry and Molecular Engineering East China Normal UniversityShanghai200062 China Department of Materials Science and Engineering City University of Hong KongKowloonHong KongChina Department of Chemistry City University of Hong KongKowloonHong KongChina Hong Kong Institute for Clean Energy Hong KongChina

Since 1986,the donor-acceptor (D:A) heterojunction has been regarded a necessity for high-efficiency organic photovoltaics (OPVs),due to its unique advantage in compensating the intrinsic limitations of organic semiconductors,such as high exciton binding energy and poor ambipolar charge mobility. While this adversely causes tremendous non-radiative charge recombination and instability issues,which currently become the most critical limits for commercialization of OPVs. Here,we present a concept-to-proof study on the potential of D:A heterojunction free OPV by taking advantage of recent progress of non-fullerene acceptors. First,we demonstrate that the “free carriers” can be spontaneously generated upon illumination in an NFA,i.e.,the 6TIC-4F single layer. Second,the 6TIC-4F layer also exhibits good ambipolar charge transporting property. These exceptional characteristics distinguish it from the traditional organic semiconductors,and relieve it from the reliance of D:A heterojunction to independently work as active layer. As a result,the subsequent OPV by simply sandwiching the 6TIC-4F layer between the cathode and anode yields a considerably high power conversion efficiency ~1%. Moreover,we find the D:A heterojunction free device exhibits two order of magnitude higher electroluminescence quantum efficiency and significantly reduced VOC loss by 0.16 eV compared to those of the D:A BHJ structure,validating its promise for higher efficiency in the future. Therefore,our work demonstrates the possibility of using D:A heterojunction-free device structure for high performance,that can potentially become the next game changer of OPV.

关键词： Organic solar cells Spontaneous charge generation Ambipolar charge transport Charge recombination Perovskite-like organic semiconductor Schottky-junction structure Single component