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不同流道轴面形状的液力缓速器内流场的模拟

系统仿真学报 2009年第24期21卷 7743-7746页

作者：何仁严军鲁明江苏大学汽车与交通工程学院镇江212013

为了研究不同流道轴面形状对液力缓速器制动力矩的影响,采用了雷诺时均N-S方程、标准k-ε模型和SIMPLEC算法对液力缓速器内部流场进行了数值模拟,分析了不同轴面形状下液体流动的速度分布、压力分布和湍动能分布规律。以Rothalpy值的变... 详细信息

为了研究不同流道轴面形状对液力缓速器制动力矩的影响,采用了雷诺时均N-S方程、标准k-ε模型和SIMPLEC算法对液力缓速器内部流场进行了数值模拟,分析了不同轴面形状下液体流动的速度分布、压力分布和湍动能分布规律。以Rothalpy值的变化作为损失分析指标,定量比较不同流道轴面形状对制动力矩的影响,得出长圆形缓速能力最大,扁圆形次之,梨形最小,可为液力缓速器设计理论的完善和后续研究工作提供重要的理论依据。

关键词：液力缓速器轴面形状计算流体动力学数值模拟

Preparation and Properties of Superhydrophobic ZnO Nanorod-based Nanocomposite on the Surface of Stainless Steel Mesh

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Journal of Bionic Engineering 2023年第3期20卷 910-922页

作者： Shunuo Bian Junhua Xu Lihua Yu Di lu School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang212003China

Bionic superhydrophobic coating has extremely broad application prospects and practical value. It is based on two important conditions, one is the construction of micro–nano structure, the other is the material with low surface energy. How to stabilize the micro–nano structure has become the focus of researches. In this work, a layer of Zn film is deposited on the stainless steel mesh with sturdy micron structure by RF magnetron sputtering. The solid micron structure of the stainless steel mesh itself, combined with the method of thermal oxidation, the surface of the stainless steel mesh is thus formed into a nanorod like ZnO nano structure, and then modified with perfluorodecyltriethoxysilane (PFDS) for low surface energy. The maximum contact angle of the superhydrophobic sample is 154.8°, and the minimum sliding angle is 2°, and it also has excellent corrosion resistance, thermal stability, self-cleaning, anti-aging and anti-icing properties, which provides a design idea for the preparation of superhydrophobic coatings.

关键词： Superhydrophobic Corrosion resistance Self-cleaning Magnetron sputtering

Investigation of the redox performance of pyrite cinder calcined at different temperature in chemical looping combustion

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Chinese Journal of Chemical Engineering 2022年第8期35卷 98-105页

作者： Zhong Ma Guofu Liu Hui Zhang Yonggang lu School of Energy&Power Engineering Jiangsu UniversityZhenjiang 212013China State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering Ningxia UniversityYinchuan 750021China School of Energy and Power Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical EngineeringNingxia UniversityYinchuan 750021China

As an industrial solid waste,pyrite cinder exhibited excellent reactivity and cycle stability in chemical looping *** to the experiment,oxygen carriers often experienced a high temperature calcination process to stabilize the physico-chemical properties,which presented significant influence on the redox performance of oxygen ***,the effect of calcination temperature on the cyclic reaction performance of pyrite cinder has not been studied in *** this work,the effect of calcination temperature on the redox activity and attrition characteristic of pyrite cinder were studied in a fluidizedbed reactor using CH_(4) as fuel.A series of pyrite cinder samples were prepared by controlling the calcination *** redox activity and attrition rate of the obtained pyrite cinder samples were investigated *** results showed that calcination temperature displayed significant impact on the redox performance of pyrite *** CH_(4) conversion(80%–85%)and attrition resistance,the pyrite cinder calcined at 1050℃ presented excellent redox *** the whole experiment process,the CO_(2) selectivity of the pyrite cinder samples were not affected by the calcination temperature and were still close to 100%.The results can provide reference for optimizing the calcination temperature of pyrite cinder during chemical looping process.

关键词： Chemical looping combustion Pyrite cinder Calcination temperature CO_(2)capture Attrition Waste treatment

A review on the synthesis of transition metal nitride nanostructures and their energy related applications

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Green Energy & Environment 2023年第2期8卷 406-437页

作者： Qiao luo Congcong lu Lingran Liu Maiyong Zhu Research School of Polymeric Materials School of Materials Science&EngineeringJiangsu UniversityZhenjiangJiangsu 212013China

Transition metal nitrides(TMN)have recently grabbed immensely appealing as ideal active materials in energy storage and catalysis fields on account of their remarkable electrical conductivity,excellent chemical stability,wide band gap and tunable *** pure TMN and TMN-based materials have been extensively studied concerned with their preparation approaches,nanostructures,and favored performance in various ***,the processes towards synthesis of TMN are numerous and *** appropriate method to obtain target TMN with desired structure is crucial,which further affects its practical application ***,this review offers a timely and comprehensive summary of the synthetic ways to TMN and their application in energy related *** synthesis section is categorized into in-situ and ex-situ based on where the N element in TMN origins ***,overviews on the energy related applications including energy storage,electrocatalysis and photocatalysis are *** the end,the problems to be solved and the development trend of the synthesis and application of transition metal nitrides are prospected.

关键词： Transition metal nitride In-situ Ex-situ Energy storage Electrocatalysis Photocatalysis

Performance-control-orientated hybrid metal additive manufacturing technologies:state of the art,challenges,and future trends

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International Journal of Extreme Manufacturing 2024年第3期6卷 274-328页

作者： Jiming Lv Yuchen Liang Xiang Xu Gang Xu Hongmei Zhang Haifei lu Kaiyu luo Jie Cai Jinzhong lu School of Mechanical Engineering Jiangsu UniversityZhenjiang 212013People’s Republic of China School of Mechanical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003People’s Republic of China

Metal additive manufacturing(AM)technologies have made significant progress in the basic theoretical field since their invention in the ***,performance instability during continuous processing,such as thermal history,residual stress accumulation,and columnar grain epitaxial growth,consistently hinders their broad application in standardized industrial *** overcome these challenges,performance-control-oriented hybrid AM(HAM)technologies have been *** technologies,by leveraging external auxiliary processes,aim to regulate microstructural evolution and mechanical properties during metal *** paper provides a systematic and detailed review of performance-control-oriented HAM technology,which is categorized into two main groups:energy field-assisted AM(EFed AM,***,electromagnetic,and heat)technologies and interlayer plastic deformation-assisted AM(IPDed AM,*** shock peening,rolling,ultrasonic peening,and friction stir process)*** review covers the influence of external energy fields on the melting,flow,and solidification behavior of materials,and the regulatory effects of interlayer plastic deformation on grain refinement,nucleation,and ***,the role of performance-control-oriented HAM technologies in managing residual stress conversion,metallurgical defect closure,mechanical property improvement,and anisotropy regulation is thoroughly reviewed and *** review concludes with an analysis of future development trends in EFed AM and IPDed AM technologies.

关键词： hybrid additive manufacturing in-situ/interlayer plastic deformation auxiliary energy fields microstructure customization mechanical properties enhancement

A Convenient Heterogeneous Reduction of Knoevenagel Product by Hantzsch Ester and Its Development into Reductive Alkylation of Malononitrile

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Chinese Journal of Chemistry 2014年第7期32卷 650-653页

作者： Yong-Qing Yang Zheng lu School of Pharmacy Jiangsu UniversityZhenjiangJiangsu 212013China

Poor solubility of Hantzsch ester is used as indicator in the reduction of methylidene *** Knoevenagel reaction is integrated to develop a reductive alkylation of malononitrile with aryl and aliphatic aldehyde as the ... 详细信息

关键词： heterogeneous reduction Hantzsch ester Knoevenagel condensation reductive alkylation

How far are we to GPT-4V?Closing the gap to commercial multimodal models with open-source suites

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Science China(Information Sciences) 2024年第12期67卷 5-22页

作者： Zhe CHEN Weiyun WANG Hao TIAN Shenglong YE Zhangwei GAO Erfei CUI Wenwen TONG Kongzhi HU Jiapeng luO Zheng MA Ji MA Jiaqi WANG Xiaoyi DONG Hang YAN Hewei GUO Conghui HE Botian SHI zhenjiang JIN Chao XU Bin WANG Xingjian WEI Wei LI Wenjian ZHANG Bo ZHANG Pinlong CAI Licheng WEN Xiangchao YAN Min DOU Lewei lu Xizhou ZHU Tong lu Dahua LIN Yu QIAO Jifeng DAI Wenhai WANG State Key Laboratory for Novel Software Technology Nanjing University Shanghai AI Laboratory School of Computer Science Fudan University SenseTime Research Department of Information Engineering The Chinese University of Hong Kong Department of Electronic Engineering Tsinghua University

In this paper, we introduce InternVL 1.5, an open-source multimodal large language model(MLLM) to bridge the capability gap between open-source and proprietary commercial models in multimodal understanding. We introduce three simple improvements.(1) Strong vision encoder: we explored a continuous learning strategy for the large-scale vision foundation model — InternViT-6B, boosting its visual understanding capabilities, and making it can be transferred and reused in different LLMs.(2) Dynamic high-resolution: we divide images into tiles ranging from 1 to 40 of 448×448 pixels according to the aspect ratio and resolution of the input images, which supports up to 4K resolution input.(3) High-quality bilingual dataset: we carefully collected a high-quality bilingual dataset that covers common scenes, document images,and annotated them with English and Chinese question-answer pairs, significantly enhancing performance in optical character recognition(OCR) and Chinese-related tasks. We evaluate InternVL 1.5 through a series of benchmarks and comparative studies. Compared to both open-source and proprietary commercial models, InternVL 1.5 shows competitive performance, achieving state-of-the-art results in 8 of 18 multimodal benchmarks. Code and models are available at https://***/OpenGVLab/InternVL.

关键词： multimodal model open-source vision encoder dynamic resolution bilingual dataset

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中外图情领域专利论文可视化对比分析

图书情报工作 2011年第14期55卷 46-48,67页

作者：卢章平王君江苏大学科技信息研究所镇江212013

通过对关键词共现图谱和国外高被引文献的解读,发现我国图情领域专利论文集中在专利信息的获取、分析和应用等领域的研究,以专利信息的检索和专利分析为研究热点;国际图情领域专利论文的研究热点集中在探讨专利与科学、技术及创新的关... 详细信息

通过对关键词共现图谱和国外高被引文献的解读,发现我国图情领域专利论文集中在专利信息的获取、分析和应用等领域的研究,以专利信息的检索和专利分析为研究热点;国际图情领域专利论文的研究热点集中在探讨专利与科学、技术及创新的关系。在此基础上,分析中外专利论文研究热点的差异及造成这种差异的原因,同时指出我国专利论文未来的研究热点。

关键词：专利论文可视化分析研究热点

Propagation of traveling wave solutions for nonlinear evolution equation through the implementation of the extended modi ed direct algebraic method

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Applied Mathematics(A Journal of Chinese Universities) 2020年第1期35卷 84-100页

作者： David Yaro Aly Seadawy lu Dian-chen Mathematics Department Faculty of ScienceJiangsu UniversityZhenjiang 212013China Mathematics Department Faculty of scienceTaibah UniversityAl-Madinah Al-MunawarahSaudi Arabia Mathematics Department Faculty of ScienceBeni-Suef UniversityEgypt Faculty of Science Jiangsu UniversityZhenjiang 212013China

In this work,di erent kinds of traveling wave solutions and uncategorized soliton wave solutions are obtained in a three dimensional(3-D)nonlinear evolution equations(NEEs)through the implementation of the modi ed extended direct algebraic ***-singular and dark-singular combo solitons,Jacobi's elliptic functions,Weierstrass elliptic functions,constant wave solutions and so on are attained beside their existing *** interpretation of the solutions to the 3-D modi ed KdV-Zakharov-Kuznetsov equation are also given.

关键词： Novel soliton and solitary solutions for the 3-D mKdV-ZK equation Modi ed extended direct algebraic method Jacobi elliptic functions Physical explanations of the results