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A NON-LINEAR MODEL FOR ESTIMATING THE COST OF ACHIEVING EMISSION REDUCTION TARGETS:THE CASE OF THE U.S.,CHINA AND INDIA

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Journal of Systems Science and Systems Engineering 2012年第3期21卷 297-315页

作者： lei ZHU xiao-Bing ZHANG Ying fan Center for Energy & Environmental Policy Research Institute of Policy and Management Chinese Academy of Sciences Beijing 100190 China Department of Economics University of Gothenburg SE 40530 G teborg Sweden

With the world talking about climate change, the United States （U.S.）, China and India have announced their carbon emission reduction targets. For these three countries to achieve their targets, significant questions arise, shch as what will be the annual emission reduction efforts to achieve those targets, how much it would cost and what would be the economic effects. This paper puts the carbon intensity reduction targets of China and India together with the absolute emission reduction target of the U.S. into the same non-linear model to quantitatively study the optimal emission control strategies and associated total cost for achieving those targets by the year 2020, and estimate and compare the minimized total costs of the three countries to reach their targets. Our results show that the total cost for the U.S. to achieve its emission reduction target is greater than those of China and India in terms of absolute amount. However, in terms of proportion of total cost to GDP, China and India＇s ratios are significantly greater than that of the U.S., indicating that for the developing countries such as China and India, the achievement of emission reduction targets needs relatively greater effort.

关键词： Emission reduction cost analysis emission reduction strategy optimization model

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一种新型脉动热管及其传热性能研究

科学技术与工程 2022年第32期22卷 14237-14244页

作者：战洪仁王昕宇王立鹏于胜利范晓雷沈阳化工大学机械与动力工程学院沈阳110142 宁波工程学院机械学院宁波315016

为提高脉动热管的传热性能,提出了一种将文丘里管段与脉动热管相结合新型脉动热管,分别将文丘里管段布置在蒸发段、冷凝段、绝热段,利用文丘里效应促进脉动热管中工质的循环,并运用Fluent数值模拟中的VOF(volume of fluid)模型,从压差... 详细信息

为提高脉动热管的传热性能,提出了一种将文丘里管段与脉动热管相结合新型脉动热管,分别将文丘里管段布置在蒸发段、冷凝段、绝热段,利用文丘里效应促进脉动热管中工质的循环,并运用Fluent数值模拟中的VOF(volume of fluid)模型,从压差、温度等因素,研究了新型闭环脉动热管(closed-loop pulsating heat pipe, CLPHP)的传热性能。结果表明:在相同的热流密度下,文丘里脉动热管的启动时间均比普通脉动热管启动时间短,其中3号(文丘里管段位于蒸发段)脉动热管启动时间最短;在小输入热流密度下,由于文丘里脉动热管能维持较长时间的小幅振荡,使其热阻均小于普通脉动热管,在32 238 W/m^(2)时,3号脉动热管换热性能最佳。在输入热流密度大于32 238 W/m^(2)以后,文丘里脉动热管的热阻均大于普通脉动热管热阻。新型脉动热管的传热性能的研究为小输入热流密度脉动热管的优化设计提供了新思路,为工程应用提供了设计依据。

关键词：脉动热管数值模拟压差文丘里管相变

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翠云草与小翠云的生药比较鉴别研究

湖北中医药大学学报 2023年第6期25卷 40-44页

作者：张一唱李娟范晓磊湖北武汉药品医疗器械检验所湖北武汉430075 湖北中医药大学湖北武汉430065

目的对卷柏科卷柏属植物翠云草及小翠云的药材进行系统的生药学鉴别研究。方法采用植物性状鉴别、横切面显微鉴别、薄层色谱以及紫外-可见分光和液相色谱含量测定,对翠云草和小翠云进行系统比较和鉴别。结果归纳整理了翠云草和小翠云在... 详细信息

目的对卷柏科卷柏属植物翠云草及小翠云的药材进行系统的生药学鉴别研究。方法采用植物性状鉴别、横切面显微鉴别、薄层色谱以及紫外-可见分光和液相色谱含量测定,对翠云草和小翠云进行系统比较和鉴别。结果归纳整理了翠云草和小翠云在性状,横切显微特征、薄层色谱、含量测定方面存在的差异。特别是通过叶缘特征结合横切面特征可以区分2种植物。结论该研究可以区分鉴别翠云草与混淆品小翠云,对翠云草鉴定及质量控制提供参考依据。

关键词：翠云草小翠云生药学系统鉴别

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基于GPU的受限玻尔兹曼机并行加速

电子设计工程 2016年第2期24卷 28-31,34页

作者：张立民刘凯范晓磊海军航空工程学院山东烟台264001 第二炮兵工程大学士官职业技术教育学院山东青州262500

为针对受限玻尔兹曼机处理大数据时存在的训练缓慢、难以得到模型最优的问题,提出了基于GPU的RBM模型训练并行加速方法。首先重新规划了对比散度算法在GPU的实现步骤;其次结合以往GPU并行方案,提出采用CUBLAS执行训练的矩阵乘加运算,设... 详细信息

为针对受限玻尔兹曼机处理大数据时存在的训练缓慢、难以得到模型最优的问题,提出了基于GPU的RBM模型训练并行加速方法。首先重新规划了对比散度算法在GPU的实现步骤;其次结合以往GPU并行方案,提出采用CUBLAS执行训练的矩阵乘加运算,设计周期更长、代码更为简洁的Tausworthe113和CLCG4的组合随机数生成器,利用CUDA拾取纹理内存的读取模式实现了Sigmoid函数值计算;最后对训练时间和效果进行检验。通过MNIST手写数字识别集实验证明,相较于以往RBM并行代码,新设计的GPU并行方案在处理大规模数据集训练上优势较为明显,加速比达到25以上。

关键词：受限玻尔兹曼机 GPU CUDA 加速比并行加速

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

β-PbO_2—SPE复合膜电极降解苯酚电化学行为

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郑州大学学报（工学版） 2012年第4期33卷 121-124页

作者：万亚珍张文辉樊晓磊刘金盾郑州大学化工与能源学院河南郑州450001

采用循环伏安法在不同性质介质中研究了β-PbO2—SPE复合膜电极上苯酚的降解能力.结果表明,在非酸性介质中,苯酚可直接电化学降解,且在碱性介质中降解能力强于中性介质.降解机理分析推断:碱性介质中降解反应的电子转移系数为0.127,中性... 详细信息

采用循环伏安法在不同性质介质中研究了β-PbO2—SPE复合膜电极上苯酚的降解能力.结果表明,在非酸性介质中,苯酚可直接电化学降解,且在碱性介质中降解能力强于中性介质.降解机理分析推断:碱性介质中降解反应的电子转移系数为0.127,中性介质中为0.156.不同速率下的CV性能研究表明,苯酚在这两种介质中降解过程受扩散控制.

关键词：膜电极循环伏安法苯酚降解机理

[Recent progress in mass spectrometry imaging using nanospray desorption electrospray ionization]

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Se pu = Chinese journal of chromatography 2025年第1期43卷 43-49页

作者： Jing-Bo Wang xiao-Lan Li Rui-Xia fan Ping Lü Rui-Chuan Yin West China School of Pharmacy Sichuan University Chengdu 610041 China.

Ambient mass spectrometry imaging (MSI) enables hundreds of analytes in tissue sections to be directly mapped at atmospheric pressure with minimal sample preparation. This field is currently experiencing rapid growth, with numerous reported ambient ionization techniques resulting in a "hundred flowers bloom" situation. Nanospray desorption electrospray ionization (nano-DESI), developed by the Laskin group in 2010, is a widely used liquid-extraction-based ambient ionization technique that was first used for mass spectrometry imaging of tissue in 2012. The nano-DESI probe comprises a primary capillary and a nanospray capillary, with the latter efficiently transferring analyte-containing droplets via a tiny liquid bridge formed between the probe and sample surface, thereby enabling nanoelectrospray ionization (nano-ESI) in front of the inlet of a mass spectrometer. The advantages of nano-DESI MSI include minimal sample preparation, high spatial resolution, and high sensitivity. These features are well-suited for imaging various sample types, including frozen tissue sections, microbial communities, and environmental samples. A PubMed-database search using the "nano-DESI" keyword revealed 72 related articles in the 2010-2024 period, with 34 of them published between 2021 and 2024, which indicates that nano-DESI has rapidly developed as an ambient ionization technique over recent years. Herein, we briefly introduce key nano-DESI-MSI research progress reported in the past three years with the aim of better understanding and facilitating the use of this technology. We first discuss advances in ion-source development. Since no commercial nano-DESI source exists, designing and constructing ion sources remain technical challenges that limit its development. Nano-DESI has been successfully coupled with various types of mass spectrometer, including LTQ Orbitrap, quadrupole-Orbitrap (Q Exactive), 6560 IM QTOF, timsTOF Pro2, triple quadrupole, and FTICR. These couplings have signi

关键词： ambient mass spectrometry imaging nanospray desorption electrospray ionization spatial proteomics structural characterization of lipid

Bandgap characteristics analysis and graded design of a novel metamaterial for flexural wave suppression

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 1-24页

作者： fan YANG Zhaoyang MA Xingming GUO Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai Institute of Applied Mathematics and Mechanics School of Mechanics and Engineering ScienceShanghai University Shanghai Institute of Aircraft Mechanics and Control

A novel elastic metamaterial is proposed with the aim of achieving lowfrequency broad bandgaps and bandgap regulation. The band structure of the proposed metamaterial is calculated based on the Floquet-Bloch theorem, and the boundary modes of each bandgap are analyzed to understand the effects of each component of the unit cell on the bandgap formation. It is found that the metamaterials with a low elastic modulus of ligaments can generate flexural wave bandgaps below 300 Hz. Multi-frequency vibrations can be suppressed through the selective manipulation of bandgaps. The dual-graded design of metamaterials that can significantly improve the bandgap width is proposed based on parametric studies. A new way that can regulate the bandgap is revealed by studying the graded elastic modulus in the substrate. The results demonstrate that the nonlinear gradient of the elastic modulus in the substrate offers better bandgap performance. Based on these analyses, the proposed elastic metamaterials can pave the way for multi-frequency vibration control, low-frequency bandgap broadening, and bandgap tuning.

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Dynamic behaviors of graphene platelets-reinforced metal foam piezoelectric beams with velocity feedback control

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 63-80页

作者： Jie CHEN Xinyue ZHANG Mingyang fan School of Mathematics Statistics and Mechanics Beijing University of Technology College of Mechanical & Energy Engineering Beijing University of Technology

Graphene platelets(GPLs)-reinforced metal foam structures enhance the mechanical properties while maintaining the lightweight characteristics of metal foams. Further bonding piezoelectric actuator and sensor layers on the surfaces of GPLs-reinforced metal foam beams enables active vibration control, greatly expanding their applications in the aerospace industry. For the first time, this paper investigates the vibration characteristics and active vibration control of GPLs-reinforced metal foam beams with surfacebonded piezoelectric layers. The constant velocity feedback scheme is used to design the closed-loop controller including piezoelectric actuators and sensors. The effects of the GPLs on the linear and nonlinear free vibrations of the beams are numerically *** Newmark-β method combined with Newton's iteration technique is used to calculate the nonlinear responses of the beams under different load forms including harmonic loads,impact loads, and moving loads. Additionally, special attention is given to the vibration reduction performance of the velocity feedback control on the responses of the beam.

关键词： Piezoelectric actuators