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Numerical Investigation of Flow Motion and Performance of A Horizontal Axis Tidal Turbine Subjected to A Steady Current

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China Ocean Engineering 2015年第2期29卷 209-222页

作者：李林娟郑金海彭于轩张继生吴修广 State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai University College of Harbor Coastal and Offshore Engineering Hohai University Zhejiang Institute of Hydraulics and Estuary

Horizontal axis tidal turbines have attracted more and more attentions nowadays, because of their convenience and low expense in construction and high efficiency in extracting tidal energy. The present study numerically investigates the flow motion and performance of a horizontal axis tidal turbine with a supporting vertical cylinder under steady current. In the numerical model, the continuous equation and incompressible Reynolds-averaged Navier-Stokes equations are solved, and the volume of fluid method is employed to track free surface motion. The RNG k-ε model is adopted to calculate turbulence transport while the fractional area/volume obstacle representation method is used to describe turbine characteristics and movement. The effects of installation elevation of tidal turbine and inlet velocity on the water elevation, and current velocity, rotating speed and resultant force on turbine are discussed. Based on the comparison of the numerical results, a better understanding of flow structure around horizontal axis tidal turbine and turbine performance is achieved.

关键词： horizontal axis tidal turbine numerical simulation turbine performance flow motion steady current marine renewable energy

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近十年灰鳖洋动力地貌演变特征研究

泥沙研究 2015年第3期40卷 42-48页

作者：刘光生吴修广浙江省水利河口研究院浙江省海洋规划设计研究院浙江杭州310020

灰鳖洋位于杭州湾口南部,受长江口入海泥沙、杭州湾和金塘水道水动力长周期变化的共同影响,灰鳖洋一直处于"海床基本稳定,东部微冲西部微淤"的动力地貌演变特性,但本世纪以来,这一特性发生了重大变化。应用2002年至2011年灰鳖洋水下地... 详细信息

灰鳖洋位于杭州湾口南部,受长江口入海泥沙、杭州湾和金塘水道水动力长周期变化的共同影响,灰鳖洋一直处于"海床基本稳定,东部微冲西部微淤"的动力地貌演变特性,但本世纪以来,这一特性发生了重大变化。应用2002年至2011年灰鳖洋水下地形和水文测验资料,辅以数学模型手段,分析了近10年灰鳖洋动力地貌演变特征,并从多方面探究了演变特性转变的原因,研究表明:灰鳖洋呈近岸缓慢淤积、离岸快速冲刷、累积性冲淤、近岸潮动力明显减弱、中东部潮动力增强的演变特点;近10年演变特性的变化是对泥沙环境变化及人类活动的直接响应。

关键词：杭州湾灰鳖洋动力地貌人类活动数学模型

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一种浮式液化天然气流程设计与分析

现代化工 2017年第10期37卷 185-188页

作者：吴建修梁光川周军西南石油大学石油与天然气工程学院四川成都610500

设计了一种浮式基于CO_2预冷—N_2-CH_4膨胀制冷液化天然气流程。对流程进行了模拟和比较,结果显示,该流程比功耗为0.54 k Wh/m3,液化率为91.0%,综合性能优异。对流程进行了参数分析,分析结果对实际生产具有一定指导意义。

关键词： FLNG 天然气液化预冷膨胀制冷参数分析

Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen xiu-Qing Qiao Guo Hui Bojing Sun Dongfang Hou Meidi Wang Xueqian wu Tao wu Dong-Sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： Cadmium sulfide

曲线坐标下平面二维水流计算的代数应力湍流模型

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水利学报 2005年第4期36卷 383-390页

作者：沈永明吴修广郑永红大连理工大学海岸和近海工程国家重点实验室辽宁大连116024 浙江省水利河口研究院浙江杭州310020 中国科学院广州能源研究所广东广州510070

本文对浅水流动的控制方程进行坐标变换,导出了非正交曲线坐标下平面二维水流计算的代数应力模型公式,建立了非正交曲线坐标下平面二维水流计算的代数应力湍流模型。采用实验室连续弯道进行流场验证,给出了速度场、湍流动能、湍流动能... 详细信息

本文对浅水流动的控制方程进行坐标变换,导出了非正交曲线坐标下平面二维水流计算的代数应力模型公式,建立了非正交曲线坐标下平面二维水流计算的代数应力湍流模型。采用实验室连续弯道进行流场验证,给出了速度场、湍流动能、湍流动能耗散率和各应力的分布图,比较了本模型与k ε模型的湍流动能和湍流动能耗散率在各断面上的分布,结果显示了本模型定量上的正确性。

关键词：曲线坐标代数应力湍流模型 SIMPLEC算法连续弯道

Dynamic Regulation of Hydrogen Bonding Networks and Solvation Structures for Synergistic Solar‑Thermal Desalination of Seawater and Catalytic Degradation of Organic Pollutants

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Nano-Micro Letters 2025年第2期17卷 548-565页

作者： Ming‑Yuan Yu Jing wu guang Yin Fan‑Zhen Jiao Zhong‑Zhen Yu Jin Qu Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Although solar steam generation strategy is efficient in desalinating seawater,it is still challenging to achieve continuous solar-thermal desalination of seawater and catalytic degradation of organic ***,dynamic regulations of hydrogen bonding networks and solvation structures are realized by designing an asymmetric bilayer membrane consisting of a bacterial cellulose/carbon nanotube/Co_(2)(OH)_(2)CO_(3)nanorod top layer and a bacterial cellulose/Co_(2)(OH)_(2)CO_(3)nanorod(BCH)bottom ***,the hydrogen bonding networks inside the membrane can be tuned by the rich surface–OH groups of the bacterial cellulose and Co_(2)(OH)_(2)CO_(3)as well as the ions and radicals in situ generated during the catalysis ***,both SO_(4)^(2−)and HSO_(5)−can regulate the solvation structure of Na^(+)and be adsorbed more preferentially on the evaporation surface than Cl^(−),thus hindering the de-solvation of the solvated Na^(+)and subsequent nucleation/growth of ***,the heat generated by the solar-thermal energy conversion can accelerate the reaction kinetics and enhance the catalytic degradation *** work provides a flow-bed water purification system with an asymmetric solar-thermal and catalytic membrane for synergistic solar thermal desalination of seawater/brine and catalytic degradation of organic pollutants.

关键词： Solar steam generation Seawater desalination Catalytic degradation Bacterial cellulose Cobalt hydroxycarbonate nanorods

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门冬胰岛素30治疗初诊2型糖尿病疗效观察

重庆医学 2009年第18期38卷 2271-2272页

作者：吴光秀况晓璐重庆市涪陵中心医院内分泌科 408000

目的观察门冬胰岛素30(诺和锐30)对初诊2型糖尿病(T2DM)的疗效及安全性。方法对75例初诊T2DM患者在饮食和运动治疗基础上,给予门冬胰岛素30强化治疗3个月,分析比较治疗前后的血糖、糖化血红蛋白、血脂、体质量指数等指标的变化及药物不... 详细信息

目的观察门冬胰岛素30(诺和锐30)对初诊2型糖尿病(T2DM)的疗效及安全性。方法对75例初诊T2DM患者在饮食和运动治疗基础上,给予门冬胰岛素30强化治疗3个月,分析比较治疗前后的血糖、糖化血红蛋白、血脂、体质量指数等指标的变化及药物不良反应。结果治疗3个月后,与治疗前比较,空腹血糖、餐后2h血糖、糖化血红蛋白、总胆固醇、三酰甘油、低密度脂蛋白胆固醇显著下降,差异有统计学意义(P<0.05);高密度脂蛋白胆固醇明显升高,差异有统计学意义(P<0.05);体质量指数增加,但差异无统计学意义;无明显药物不良反应。结论门冬胰岛素30治疗初诊T2DM患者能降低空腹血糖、餐后2h血糖、糖化血红蛋白,间接改善血脂,疗效显著。

关键词：初诊2型糖尿病门冬胰岛素30 强化治疗血糖控制

正交数值网格的生成及平面二维流场的数值模拟

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计算力学学报 2008年第1期25卷 90-93页

作者：于曰旻沈永明吴修广唐军浙江省水利河口研究院杭州310020 大连理工大学海岸和近海工程国家重点实验室大连116023

提出了一种边界正交曲线网格的生成方法。在内域,求解拉普拉斯方程组生成二维正交曲线网格;在计算域边界,提出了正交曲线网格边界正交化处理的分段拉格朗日插值边界滑动法,并对控制方程N-S方程进行曲线坐标变换,使用SIMPLEC算法求解曲... 详细信息

提出了一种边界正交曲线网格的生成方法。在内域,求解拉普拉斯方程组生成二维正交曲线网格;在计算域边界,提出了正交曲线网格边界正交化处理的分段拉格朗日插值边界滑动法,并对控制方程N-S方程进行曲线坐标变换,使用SIMPLEC算法求解曲线坐标下的k-ε双方程湍流模型。文中以长江重庆九龙坡弯道河段正态模型为资料进行验证,计算了流场,数值模拟结果与实测结果吻合较好。

关键词：正交曲线网格曲线坐标 k-ε湍流模型

Regulation and function of endoplasmic reticulum autophagy in neurodegenerative diseases

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Neural Regeneration Research 2025年第1期20卷 6-20页

作者： xiu-Yun Zhao De-En Xu Ming-Lei wu Ji-Chuan Liu Zi-Ling Shi Quan-Hong Ma Department of Neurology and Clinical Research Center of Neurological Disease the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Institute of Neuroscience&Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases Soochow UniversitySuzhouJiangsu ProvinceChina Department of Neurology Jiangnan University Medical CenterWuxiJiangsu ProvinceChina

The endoplasmic reticulum,a key cellular organelle,regulates a wide variety of cellular *** reticulum autophagy,one of the quality control systems of the endoplasmic reticulum,plays a pivotal role in maintaining endoplasmic reticulum homeostasis by controlling endoplasmic reticulum turnover,remodeling,and *** this review,we briefly describe the endoplasmic reticulum quality control system,and subsequently focus on the role of endoplasmic reticulum autophagy,emphasizing the spatial and temporal mechanisms underlying the regulation of endoplasmic reticulum autophagy according to cellular *** also summarize the evidence relating to how defective or abnormal endoplasmic reticulum autophagy contributes to the pathogenesis of neurodegenerative *** summary,this review highlights the mechanisms associated with the regulation of endoplasmic reticulum autophagy and how they influence the pathophysiology of degenerative nerve *** review would help researchers to understand the roles and regulatory mechanisms of endoplasmic reticulum-phagy in neurodegenerative disorders.

关键词： autophagy endoplasmic reticulum endoplasmic reticulum autophagy endoplasmic reticulum quality control system endoplasmic reticulum receptors endoplasmic reticulum-associated degradation neurodegeneration neurodegenerative disease selective autophagy unfolded protein response