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Simulation and Applications of the Ship Central Cooling System in DMS2016 Marine Engineering Simulator

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Simulation and Applications of the Ship Central Cooling Syst...

Rapid and stable calcium-looping solar thermochemical energy storage via co-doping binary sulfate and Al±Mn±Fe oxides

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作者： song changjian Sun Jianbo Marine Engineering college Dalian Maritime University College of Information Science and Technology Dalian Maritime University

ISBN: (纸本)9781538629185

Based on the analysis of the structure and mechanism of the ship cooling water system and the modular modeling method,the mathematical model of the cooling water system suitable for real-time simulation calculation is established,and the pipe network calculation is used to obtain the flow and each pipe’s node *** simulation data of the ship cooling water system are obtained by using Visual C ++ programming software,and the accuracy of the mathematical model is verified by comparing the simulation data with real ship *** mathematical model can be used to describe the flow distribution,pressure variation and heat transfer in the ship cooling water *** distributed visual simulation system interface developed by object-oriented technology is used to realize the dynamic operation of the cooling water system and ensure the simulation *** system has been successfully applied to DMS2016 large-scale marine engine simulator,and used in the crew teaching and training,and achieved significant results.

关键词： Ship central cooling system mathematical model simulator crew training

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Green Energy & Environment 2024年第8期9卷 1290-1305页

作者： changjian Yuan Xianglei Liu Xinrui Wang Chao song Hangbin Zheng Cheng Tian Ke Gao Nan Sun Zhixing Jiang Yimin Xuan Yulong Ding School of Energy and Power Engineering Nanjing University of Aeronautics and Astronautics Key Laboratory of Thermal Management and Energy Utilization of Aviation Vehicles Ministry of Industry and Information Technology Birmingham Centre for Energy Storage School of Chemical Engineering University of Birmingham

Solar thermochemical energy storage based on calcium looping（CaL） process is a promising technology for next-generation concentrated solar power（CSP） systems. However, conventional calcium carbonate（CaCO3） pellets suffer from slow reaction kinetics, poor stability, and low solar absorptance. Here, we successfully realized high power density and highly stable solar thermochemical energy storage/release by synergistically accelerating energy storage/release via binary sulfate and promoting cycle stability, mechanical strength, and solar absorptance via Al±Mn±Fe oxides. The energy storage density of proposed CaCO3pellets is still as high as 1455 kJ kg-1with only a slight decay rate of 4.91% over 100 cycles, which is higher than that of state-of-the-art pellets in the literature, in stark contrast to 69.9% of pure CaCO3pellets over 35cycles. Compared with pure CaCO3, the energy storage power density or decomposition rate is improved by 120% due to lower activation energy and promotion of Ca2+diffusion by binary sulfate. The energy release or carbonation rate rises by 10% because of high O2-transport ability of molten binary sulfate. Benefiting from fast energy storage/release rate and high solar absorptance, thermochemical energy storage efficiency is enhanced by more than 50% under direct solar irradiation. This work paves the way for application of direct solar thermochemical energy storage techniques via achieving fast energy storage/release rate, high energy density, good cyclic stability, and high solar absorptance simultaneously.

关键词： Calcium looping (CaL) Solar thermochemical Energy storage Binary sulfate Fast reaction kinetics

Probing nickelate superconductors at atomic scale:A STEM review

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Chinese Physics B 2024年第9期33卷 2-11页

作者： Yihan Lei Yanghe Wang Jiahao song Jinxin Ge Dirui Wu Yingli Zhang changjian Li Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices Southern University of Science and TechnologyShenzhen 518055China

The discovery of nickelate superconductors,including doped infinite-layer(IL)nickelates RNiO2(R=La,Pr,Nd),layered square-planar nickelate Nd6Ni5O12,and the Ruddlesden–Popper(RP)phase La3Ni2O7,has spurred immense interest in fundamental research and potential *** transmission electron microscopy(STEM)has proven crucial for understanding structure–property correlations in these diverse nickelate superconducting *** this review,we summarize the key findings from various modes of STEM,elucidating the mechanism of different nickelate *** also discuss future perspectives on emerging STEM techniques for unraveling the pairing mechanism in the“nickel age”of superconductivity.

关键词： scanning transmission electron microscopy superconductivity epitaxial thin films nickelates

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音乐之喻与中国古典诗学批评

暨南学报（哲学社会科学版） 2023年第3期45卷 12-25页

作者：宋长建香港浸会大学中文系中国

音乐之喻是中国古典诗学批评中一类特别的譬喻,有着动态演进的历史过程,就取象而言,以乐器为主,后来也关涉乐曲、乐谱、音律等,呈现出丰富的形态;从功能上讲,多用于品诗和作诗的讨论,历经元明清人的踵事增华,拓展至学诗、诗歌史、诗学... 详细信息

音乐之喻是中国古典诗学批评中一类特别的譬喻,有着动态演进的历史过程,就取象而言,以乐器为主,后来也关涉乐曲、乐谱、音律等,呈现出丰富的形态;从功能上讲,多用于品诗和作诗的讨论,历经元明清人的踵事增华,拓展至学诗、诗歌史、诗学概念、诗歌接受等议题的诠释,积淀了深厚的意蕴。以音乐喻诗的学理依据与乐诗相似性以及审美文化密切相关。由批评眼光视之,借音乐说诗的实践形成了富有张力的话语,不仅开拓了诗学的阐释空间,也为中西诗学的对话搭建了桥梁。最后,这种实践虽有模糊不清的缺陷,但显示出清新有味、深切著明的表达效果,为读者带来了“响浃肌髓”的美感体验。

关键词：音乐象喻诗学批评

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女子之喻与中国古典诗学批评

文艺研究 2022年第12期 56-67页

作者：宋长建香港浸会大学中文系

女子之喻是中国古典诗学中一类特别的譬喻。就取象而言,以美女为主,也包含王妃、闺秀、妻子等身份各异的人物形象,显示出丰富的形态;从功能来看,涵盖品诗、作诗、学诗、选诗、诗歌史、诗学概念等多个题域,使得“人化文评”的意蕴越发充... 详细信息

女子之喻是中国古典诗学中一类特别的譬喻。就取象而言,以美女为主,也包含王妃、闺秀、妻子等身份各异的人物形象,显示出丰富的形态;从功能来看,涵盖品诗、作诗、学诗、选诗、诗歌史、诗学概念等多个题域,使得“人化文评”的意蕴越发充实。就生成逻辑而言,以女子喻诗与象喻思维、观人学、儒家伦理和感官审美密切相关。女子之喻形成了颇具解释力的话语,不仅带来了阅读诗歌的新颖方式,还提供了有效的批评术语和美学尺度。

关键词：中国古典诗学批评术语诗歌史品诗选诗人化文评人物形象观人学

Dynamics of 18 (<i>Sophora japonica</i>) Tree Community’s Crown Volume along Elevation Gradient in <i>Ye County</i>

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Open Journal of Ecology 2019年第7期9卷 209-215页

作者： Binghua Liao Yingping Liu Hai Zuo Junrong Xia Zuyun Yu changjian song Xiaoguang Zhang Caige Jiang Yalong Xu Key Laboratory of Ecological Restoration in Hilly Areas School of Chemical and Environmental Engineering Pingdingshan University Pingdingshan China State Key Laboratory of Cotton Biology Henan Key Laboratory of Plant Stress Biology School of Life Sciences Henan University Kaifeng China Seedling Station of Pingdingshan City Pingdingshan China Greening Office of Pingdingshan City Pingdingshan China

Applying plant community diversity techniques and SPSS statistic analysis, we quantified the relationship between crown volume of 18 (Sophora japonica) tree communities and elevation along different elevation gradient in Ye County in the study. We concluded that there was a significantly positive correlation between crown volume of 18 (Sophora japonica) tree communities and elevation gradient (P Sophora japonica) tree communities increased along elevation from 50 m to 200 m in Ye County in 2018. Therefore, understanding dynamic connecting crown volume of 18 (Sophora japonica) communities and elevation can be not just applied to preserve of (Sophora japonica) tree communities, but also applied to sustainable of biodiversity and processes of tree community’s crown volume along elevation.

关键词： (Sophora japonica) Communities Crown Volume Elevation Gradient Correlation International Pharmaceutical Materials

基于SRUKF的TSOA/TDOA单站跟踪技术

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数据采集与处理 2012年第2期27卷 259-263页

作者：刘翔宋常建胡磊钟子发解放军电子工程学院电子制约技术重点实验室合肥230037 蚌埠汽车管理学院干部轮训大队蚌埠230011

阐述了蜂窝网系统中单台定位设备TSOA/TDOA被动式新型混合定位技术的原理。利用TSOA/TDOA混合定位的数学模型建立系统观测方程,采用受随机加速影响的匀速运动状态模型,描述了移动台的位移和速度。在此基础上推导了基于平方根无迹卡尔曼... 详细信息

阐述了蜂窝网系统中单台定位设备TSOA/TDOA被动式新型混合定位技术的原理。利用TSOA/TDOA混合定位的数学模型建立系统观测方程,采用受随机加速影响的匀速运动状态模型,描述了移动台的位移和速度。在此基础上推导了基于平方根无迹卡尔曼滤波的跟踪算法,并通过仿真实现了对移动台位置和速度的同时跟踪。仿真结果表明,与扩展卡尔曼滤波及无迹卡尔曼滤波算法相比,平方根无迹卡尔曼滤波算法的跟踪性能更优。

关键词：到达时间之和(TSOA) 到达时间之差(TDOA) 平方根无迹卡尔曼滤波(SRUKF) 移动台跟踪

一种用于LTE终端的粒子群加权重构定位算法

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计算机工程与应用 2016年第5期52卷 99-103页

作者：滕飞宋常建钟子发解放军电子工程学院电子制约技术重点实验室合肥230037

为解决LTE终端在NLOS环境下定位精度较低的问题,通过加权重构定位矩阵并引入残差,将其转化为权值寻优的问题,再利用改进型粒子群算法进行权值寻优,以消除NLOS噪声带来的误差。该方案由于采用了线性改变惯性权重的方式,能有效提升寻优的... 详细信息

为解决LTE终端在NLOS环境下定位精度较低的问题,通过加权重构定位矩阵并引入残差,将其转化为权值寻优的问题,再利用改进型粒子群算法进行权值寻优,以消除NLOS噪声带来的误差。该方案由于采用了线性改变惯性权重的方式,能有效提升寻优的效率;同时,通过逐代保存重构权值可逐步消除NLOS误差,进而提升定位的精度。仿真结果表明,相对于chan算法和改进型taylor算法,该算法能快速逼近最优解,在不同NLOS环境下定位误差减少量超过13%。

关键词：长期演进(LTE) 波达时延差非视距误差粒子群算法加权算法残差

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一种改进型免疫算法在TDOA定位中的应用

计算机工程与应用 2013年第4期49卷 113-116,145页

作者：刘翔宋常建钟子发解放军电子工程学院电子制约技术重点实验室合肥230037

为解决传统TDOA定位估计所带来的非线性优化问题,首先通过最大似然估计将其转换为峰值搜索优化问题,再提出一种基于克隆选择思想的改进型免疫算法对其进行求解。该算法采用浮点数编码方式,提高了运算效率;引入高斯变异算子和变异控制变... 详细信息

为解决传统TDOA定位估计所带来的非线性优化问题,首先通过最大似然估计将其转换为峰值搜索优化问题,再提出一种基于克隆选择思想的改进型免疫算法对其进行求解。该算法采用浮点数编码方式,提高了运算效率;引入高斯变异算子和变异控制变量,加强了局部搜索能力。仿真实验表明,在保证一定抗体数目的前提下,该算法适应性强,性能稳定,能快速逼近全局最优的解,且算法定位精度更高。

关键词：到达时间差定位法高斯变异克隆选择最大似然估计