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Energy transfer enhanced photocatalytic hydrogen evolution in organic heterostructure nanoparticles via flash nanoprecipitation processing

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Green Energy & Environment 2025年第2期10卷 390-398页

作者： Miaojie Yu Weiwei Zhang Xueyan Liu guohui zhao Jun Du Yongzhen Wu Wei-Hong Zhu Key Laboratory for Advanced Materials and Institute of Fine Chemicals Joint International Research Laboratory of Precision Chemistry and Molecular EngineeringFeringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai200237China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China

Organic nanophotocatalysts are promising candidates for solar fuels production,but they still face the challenge of unfavorable geminate recombination due to the limited exciton diffusion ***,we introduce a binary nanophotocatalyst fabricated by blending two polymers,PS-PEG5(PS)and PBT-PEG5(PBT),with matched absorption and emission spectra,enabling a F€orster resonance energy transfer(FRET)process for enhanced *** heterostructure nanophotocatalysts are processed using a facile and scalable flash nanoprecipitation(FNP)technique with precious kinetic control over binary nanoparticle *** resulting nanoparticles exhibit an exceptional photocatalytic hydrogen evolution rate up to 65 mmol g^(-1) h^(-1),2.5 times higher than that single component *** through fluorescence spectra and transient absorption spectra confirm the hetero-energy transfer within the binary nanoparticles,which prolongs the excited-state lifetime and extends the namely“effective exciton diffusion length”.Our finding opens new avenues for designing efficient organic photocatalysts by improving exciton migration.

关键词： Polymer photocatalysts Nanoparticles Hydrogen evolution F€orster resonance energy transfer

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Variation analyses of growth and wood properties of Larix olgensis clones in China

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Journal of Forestry Research 2017年第4期28卷 687-697页

作者： Shaopeng Yin Zhenhai Xiao guohui zhao Xin zhao Xiaoyang Sun Ying Zhang Fuwei Wang Shuchun Li Xiyang zhao Guan-Zheng Qu State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin 150040People’s Republic of China Tree Seedling Management Station Forestry Department of Jilin ProvinceChangchun 130000People’s Republic of China Seed Orchard of Siping Siping 136000People’s Republic of China

The growth traits (tree height, diameter at breast height, and stem straightness degree) and wood properties [wood density (WD), fiber length, fiber width, ash content (AC), lignin content, cellulose content, hemicellulose content (HEC), and holocellulose content] of 208 26-year-old Larix olgensis clones were analyzed. Except for WD and AC, there were significant differences (p < 0.01) for all traits among clones. The phenotypic coefficient of variation and repeatability of all traits were 9.34-35.33% and 0.218-0.930, respectively. Tree height and diameter at breast height showed significant positive correlation; however, the correlation coefficients among growth characteristics and wood properties were mostly not significant. Ten clones (L70, L56, L82, L90, L59, L91, L61, L92, L86, and L64) were selected as excellent clones under a selection rate of 5%, using tree height, diameter at breast height, and stem straightness degree as evaluation indexes, providing genetic gains of 28.69, 17.96, and 0.67%, respectively. Ten clones (L88, L305, L59, L66, L253, L304, L277, L298, L248, and L293) were selected as excellent clones using wood properties as an evaluation index, with a selection rate of 5%, providing genetic gains in WD, fiber length, fiber width, cellulose content, and HEC of 4.14, 3.64, 9.28, 6.77, and 9.61%, respectively. This study provides a theoretical basis for selecting excellent L. olgensis clones.

关键词： Genetic variation Growth traits Larix olgensis Wood properties

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Advances and applications of wind engineering in exceptional terrain

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Journal of Traffic and Transportation Engineering(English Edition) 2024年第6期11卷 1023-1209页

作者： Jiawu Li Shucheng Yang Jianming Hao Guangzhong Gao Feng Wang Hua Bai guohui zhao Yu Li Xiaofeng Xue School of Highway Chang'an University Chang'an University Wind Tunnel Laboratory Chang'an University

Wind engineering has made significant strides in addressing the challenges posed by exceptional terrains, where traditional methodologies often fall short. This paper reviews the advances in wind tunnel technology and computational fluid dynamics(CFD) that have revolutionized the understanding and prediction of wind effects on bridges, particularly in complex environments. The integration of advanced measurement techniques with wind tunnel experiments has provided deeper insights into wind characteristics, leading to more accurate aerodynamic designs for bridges. The application of these technologies in unique terrains has been instrumental in ensuring the safety and stability of critical infrastructures. The paper reviews the importance of continuous research and collaboration in wind engineering to address the evolving demands of infrastructure in challenging terrains. The article also introduces the wind tunnel facilities at Chang'an University, detailing their capabilities and contributions to research in wind engineering, including the study of aerodynamic performance and control measures for bridges. It is concluded by reflecting on the research team's 20-year journey at Chang'an University, noting their growth, achievements, and contributions to the field of wind engineering.

关键词： Wind engineering Wind tunnel test Computational fluid dynamics Exceptional terrain Aerodynamic measure

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Studies on a Novel Fibrinolytic Enzyme(Nattokinase)in the Vegetable Cheese Natto

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Journal of Northeast Agricultural University(English Edition) 1998年第1期5卷 55-58页

作者： Xu Zhong, Zheng Zhiying, zhao Xiaodong, Cang Jing, zhao guohui and Zhang Chaochen (Northeast Agricultural University, Harbin 150030, P R C)

The culture condition of bacillus strain and the extraction method of Nattokinase were reported. The fibrinolytic activity of nattokinese was appraised.

关键词： fibrinolytic enzyme nattokinase thrombin urokinase

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Low-cost and fluoride-free synthesis of MFI zeolite nanosheets with enhanced stability for benzene alkylation with ethanol

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Journal of Energy Chemistry 2025年第1期100卷 458-468页

作者： Peng Zhu Cun Liu Yiren Yu Guoshu Gao Yumeng zhao Xiongfu Zhang Guodong Liu guohui Yang State Key Laboratory of Fine Chemicals School of Chemical EngineeringDalian University of TechnologyDalian 116024 State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina

Zeolite nanosheets with a short b-axis thickness are highly desirable in lots of catalytic reactions due to their reduced diffusion resistance. Nevertheless, conventional synthesis methods usually require expensive structure-directing agents(SDAs), pricey raw materials, and eco-unfriendly fluorine-containing additives. Here, we contributed a cost-effective and fluoride-free synthesis method for synthesizing high-quality MFI zeolite nanosheets through a Silicalite-1(Sil-1) seed suspension and urea cooperative strategy, only with inexpensive colloidal silica as the Si source. Our approach was effective for synthesizing both Sil-1 and aluminum-containing ZSM-5 nanosheets. By optimizing key synthesis parameters,including seed aging time, seed quantity, and urea concentration, we achieved precise control over the crystal face aspect ratio and b-axis thickness. We also revealed a non-classical oriented nanosheet growth mechanism, where Sil-1 seeds induced the formation of quasi-ordered precursor particles, and the(010)crystal planes of these particles facilitated urea adsorption, thereby promoting c-axis-oriented *** obtained ZSM-5 nanosheets exhibited exceptional catalytic performance in the benzene alkylation with ethanol, maintaining stability for over 500 h, which is 5 times longer than traditional ZSM-5 catalysts. Furthermore, large-scale production of ZSM-5 nanosheets was successfully carried out in a 3 L highpressure autoclave, yielding samples consistent with those from laboratory-scale synthesis. This work marks a significant step forward in the sustainable and efficient production of MFI nanosheets using inexpensive and environmentally friendly raw materials, offering the broad applicability in catalysis.

关键词： MFI zeolite ZSM-5 Nanosheets Scale-up synthesis Aromatic alkylation

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Simultaneous blending by algebraic splines

Simultaneous blending by algebraic splines

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第二届全国几何设计与计算学术会议

作者： guohui zhao Renhong Wang Xiuping Liu Dalian University of Technology

1 Introduction In geometric modeling,one often performs blending,that is,smoothing normal or high order discontinuity between *** is often used in the geometric design of machinery,aircrafts,ships, automobiles to increase flow speed,diminish stress concentration and sometimes to improve aesthetics. Usually a surface is defined parametrically as the image of a bivariate function,or implicitly as the zero set of a real *** this paper,we discuss blending of implicit surfaces in a more general and natural *** take advantage of algebraic splines to introduce a general method of implicit blending. 2 Algebraic splines The general definition and basic results of multivariate splines can be found in[1,2].What we

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地震激励下斜拉桥横向支承体系力学参数联合优化

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振动与冲击 2021年第21期40卷 234-241页

作者：赵国辉潘佑东长安大学陕西省公路桥梁与隧道重点实验室西安710064 甘肃省交通规划勘察设计院股份有限公司兰州730030

以某斜拉桥为算例,通过非线性动力时程分析,研究横向支承体系关键力学参数对结构地震响应的影响。分别运用正交试验设计法和控制变量法对桥墩单向可动支座屈服力和桥塔抗风支座初始间隙进行参数联合优化。结果表明:多因子优化时,控制变... 详细信息

以某斜拉桥为算例,通过非线性动力时程分析,研究横向支承体系关键力学参数对结构地震响应的影响。分别运用正交试验设计法和控制变量法对桥墩单向可动支座屈服力和桥塔抗风支座初始间隙进行参数联合优化。结果表明:多因子优化时,控制变量法已无法适用,而正交试验设计法不但有效且计算效率高;双因子优化时,两种方法结果相同,但正交试验设计法可量化参数之间的正交与耦合性。高墩上支座的屈服力与桥塔抗风支座初始间隙具有较强的正交性,互相影响的显著性较低,参数优化时可以单独考虑;矮墩上支座的屈服力与桥塔抗风支座初始间隙表现出较强的耦合性,参数优化时需联合考虑。

关键词：斜拉桥支承体系力学参数联合优化正交试验设计

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Response of runoff in the headwater region of the Yellow River to climate change and its sensitivity analysis

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Journal of Geographical Sciences 2010年第6期20卷 848-860页

作者： LAN Yongchao zhao guohui ZHANG Yaonan WEN Jun HU Xinglin LIU Jinqi GU Minglin CHANG Junjie MA Jianhua Key Laboratory of Ecohydrology and Integrated Basin Management CAS Lanzhou 730000 China Cold and Arid Regions Environmental and Engineering Research Institute CAS Lanzhou 730000 China Hydrology and Water Resources Reconnaissance Bureau of Gansu Province Lanzhou 730000 China Institute of the Yellow River Headwater of the Yellow River Conservancy Committee Lanzhou 730030 China

Response of the runoff in the headwater region of the Yellow River to climate change and its sensibility are analyzed based on the measured data at the four hydrological stations and ten weather stations during the period 1959-2008. The result indicates that change of temperature in the region has an obvious corresponding relationship with global warming and the changes of annual average temperature in each subregion in the region have been presenting a fluctuant and rising state in the past 50 years. However the change of precipitation is more intricate than the change of temperature in the region because of the influences of the different geographical positions and environments in various areas, and the change of annual precipitation in the main runoff-producing area has been presenting a fluctuant and decreasing state in the past 50 years. And there is a remarkable nonlinear correlativity between runoff and precipitation and temperature in the region. The runoff in the region has been decreasing continuously since 1990 because the precipitation in the main run-off-producing area obviously decreases and the annual average temperature continuously rises. As a whole, the runoff in each subregion of the headwater region of the Yellow River is quite sensitive to precipitation change, while the runoff in the subregion above Jimai is more sensitive to temperature change than that in the others in the region, correspondingly.

关键词： the headwater region of the Yellow River global warming sensibility response

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s3～2（Δ3）和s4～3（Δ3）的B-样条函数（英文）

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四川大学学报(自然科学版) 1998年第3期 23-26页

作者： zhao guohui(Depart　of　Math,Sichuan　University)Zheng Chengde(Dalian　Railway　Institute)

讨论了ｓ２３（Δ３）和ｓ３４（Δ３）的样条函数．用积分方法和对称性构造了Ｂ样条函数，可以构造基于两种完全不同的局部支撑样条函数的ｓ２３（Δ３）的两种拟插值算子，它们仍保持３阶多项式．

关键词：样条函数,插值算子,逼近

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中俄东线天然气管道工程SCADA系统的设计与实现

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油气储运 2020年第4期39卷 379-388页

作者：赵国辉中国石油管道公司技术服务中心

长输油气管道的自动化控制水平直接关系着其生产运行安全与效率,中俄东线天然气管道工程通过创新实践开启了中国长输油气管道自动化控制技术的新篇章。以自动化控制系统的技术特点为主线,以具有代表性的油气长输管道控制系统为依托,回... 详细信息

长输油气管道的自动化控制水平直接关系着其生产运行安全与效率,中俄东线天然气管道工程通过创新实践开启了中国长输油气管道自动化控制技术的新篇章。以自动化控制系统的技术特点为主线,以具有代表性的油气长输管道控制系统为依托,回顾了中国长输油气管道控制系统关键技术的发展历程,介绍了长输油气管道自动化控制技术发展现状,并结合智慧化管道建设,展望了长输油气管道自动化控制技术的发展前景。中俄东线天然气管道工程北段各项设计指标均处于全球领先水平,从SCADA系统组成、结构、功能等的创新成果来看,其自动化控制系统代表了目前中国长输油气管道自动化控制技术的最高水平。

关键词：油气长输管道自动控制中俄东线 SCADA

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