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Hydrogen Energy Storage System:Review on Recent Progress

Energy Engineering 2025年第1期122卷 1-39页

作者： MilleniumWong Hadi Nabipour Afrouzi Research Centre for Sustainable Technologies Faculty of EngineeringComputing and ScienceSwinburne University of TechnologyJalan Simpang TigaKuchingSarawak93350Malaysia College of Engineering Faculty of ComputingEngineering and the Built EnvironmentBirmingham City UniversityBirminghamWest MidlandsEnglandB47XGUK

A hydrogen energy storage system(HESS)is one of the many risingmodern green innovations,using excess energy to generate hydrogen and storing it for various *** that,there have been many discussions about commercializing HESS and improving it ***,the design and sizing process can be overwhelming to comprehend with various sources to examine,and understanding optimal design methodologies is crucial to optimize a HESS *** that,this review aims to collect and analyse a wide range of HESS studies to summarise recent *** different collections of studies are studied,one was sourced by the main author for preliminary readings,and another was obtained via *** findings from the Web of science platform were also examined for amore comprehensive *** findings include the People’sRepublic of China has been active in HESS research,as most works and active organizations originate from this *** has been mainly researched to support power generation and balance load demands,with financial analysis being the common scope of *** is a common tool used for HESS design,modelling,and optimization as it can handle complex *** neural network(ANN)has the potential to be used to model the HESS,but additional review is required as a formof future *** a commercialization perspective,pressurized hydrogen tanks are ideal for hydrogen storage in a HESS,but other methods can be considered after additional research and *** this review,it can be implied that modelling works will be the way forward for HESS research,but extensive collaborations and additional review are ***,this review summarized various takeaways that future research works on HESS can use.

关键词： Hydrogen energy storage system VOSViewer design review sizing

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Improved Speed and Shape of Ion-Acoustic Waves in a Warm Plasma

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Communications in Theoretical Physics 2013年第10期60卷 445-452页

作者： H.G.Abdelwahed E.K.El-Shewy Physics Department College of Sciences and Humanitarian Studies Salman Bin Abdulaziz University Theoretical Physics Group Faculty of Science Mansoura University

The basic set of fluid equations can be reduced to the nonlinear Kortewege-de Vries(KdV)and nonlinear Schro¨dinger(NLS)*** rational solutions for the two equations has been *** exact amplitude of the nonlinear ion-acoustic solitary wave can be obtained directly without resorting to any successive approximation techniques by a direct analysis of the given field *** Sagdeev’s potential is obtained in terms of ion acoustic velocity by simply solving an algebraic *** soliton and double layer solutions are obtained as a small amplitude approximation.A comparison between the exact soliton solution and that obtained from the reductive perturbation theory are also discussed.

关键词： field equations Sagdeev potential solitons nonlinear waves shock waves nonlinear SchrSdinger(NLS) equation

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高离子电导率和均匀锂离子传输的磺酸基聚醚凝胶聚合物电解质用于高性能锂金属电池（英文）

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science China Materials 2025年

作者：胡振原刘子莹刘凯秦金鹏郭文凡凡威震张运丰 Hydrogen Energy Technology Innovation Center for Hubei Province Faculty of Material Science and Chemistry China University of Geosciences (Wuhan) School of Environmental studies China University of Geosciences (Wuhan)

凝胶聚合物电解质基锂金属电池由于高比容量和低成本的优势,对于发展高能量密度储存设备具有重要意义.然而,传统型凝胶电解质因其锂离子传输效率较低、易产生极化现象,从而导致不可控的锂枝晶生长,最终阻碍了其大规模实际应用.本文设计...

凝胶聚合物电解质基锂金属电池由于高比容量和低成本的优势,对于发展高能量密度储存设备具有重要意义.然而,传统型凝胶电解质因其锂离子传输效率较低、易产生极化现象,从而导致不可控的锂枝晶生长,最终阻碍了其大规模实际应用.本文设计并合成出具有丰富离子传输位点的聚醚型锂单离子传导聚合物（DEBS-Li）,随后将其与聚偏氟乙烯-六氟丙烯P（VDF-HFP）基质相复合,采用静电纺丝技术制备出高传导性复合纳米纤维膜.实验发现,具有丰富磺酸基团的DEBS-Li可通过静电作用促进锂盐解离,从而加快离子迁移,赋予凝胶电解质在25℃时具有高离子电导率(～1.58×10-3S cm-1)和锂离子迁移数（0.62）.离子传输动力学的优化可大大延迟锂枝晶的成核时间,并显著抑制锂枝晶的形成.因此,采用该电解质组装成的锂对称电池在1.5 mA cm-2稳定运行250小时未发生短路,金属锂二次电池在10 C的高倍率下稳定循环500圈,容量保持率约为90%.本工作开发的新型聚醚凝胶聚合物电解质在高性能锂电池的实际应用中具有极大潜力.

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On Time-Fractional Cylindrical Nonlinear Equation

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Chinese Physics Letters 2016年第11期33卷 62-66页

作者： H.G.Abdelwahed E.K.ElShewy A.A.Mahmoud College of science and humanitarian studies Physics DepartmentPrince Sattam Bin Abdul Aziz University Theoretical Physics Research Group Physics DepartmentFaculty of ScienceMansoura University

Properties of cylindrical electron acoustic solitons are studied in vortex plasmas. The modil^ea cylindrical Korteweg-de Vries （KdV） equation is acquired and converted into the time fractional cylindrical modified KdV equation by Agrawal＇s analysis. Via the Adomian decomposition method, a cylindrical soliton solution to the equation is obtained. The cylindrical time fractional effect on the wave properties is investigated. Further, the increase of the fractional order of time α and hot to trapped electrons temperature β are minimized in both solitary width and amplitude. These influences on the structures of the soliton may be an alternative to the use of higher order perturbation analysis.

关键词： of is as de et in been form that

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Higher-Order Corrections to Earth's Ionosphere Shocks

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Communications in Theoretical Physics 2017年第1期67卷 90-96页

作者： H.G.Abdelwahed E.K.El-Shewy Plasma Technology and Material science Unit(PTMSU) Physics DepartmentCollege of Science and Humanitarian StudiesPrince Sattam bin Abdulaziz UniversityAlkharjKSA Theoretical Physics Group Physics DepartmentFaculty of ScienceMansoura UniversityMansouraEgypt

Nonlinear shock wave structures in unmagnetized collisionless viscous plasmas composed fluid of positive(negative) ions and nonthermally electron distribution are examined. For ion shock formation, a reductive perturbation technique applied to derive Burgers equation for lowest-order potential. As the shock amplitude decreasing or enlarging,its steepness and velocity deviate from Burger equation. Burgers type equation with higher order dissipation must be obtained to avoid this deviation. Solution for the compined two equations has been derived using renormalization analysis. Effects of higher-order, positive- negative mass ratio Q, electron nonthermal parameter δ and kinematic viscosities coefficient of positive(negative) ions η1 and η2 on the electrostatic shocks in Earth's ionosphere are also argued.

关键词： nonthermal electrons ion shock waves Burgers equation Burger type equation renormalization method higher-order dissipation

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Exploring the spatiotemporal heterogeneity of vegetation changes in subtropical humid karst region under CO2 fertilization

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Journal of Geographical sciences 2025年第1期35卷 65-87页

作者： CHEN Meng ZHOU Qiuwen PENG Dawei YAN Weihong School of Geography and Environmental science Guizhou Normal University Huanjiang Observation and Research Station for Karst Ecosystem Guangxi Key Laboratory of Karst Ecological Processes and Services Institute of Subtropical Agriculture CAS University of Chinese Academy of sciences faculty of Geographical science Beijing Normal University Forestry Bureau of Shibing County

Terrestrial ecosystems heavily depend on vegetation,which responds to carbon dioxide （CO2） fertilization in hot and humid *** subtropical humid karst region is a hot and humid region;whether and to what extent CO2fertilization affects vegetation changes in such regions remains *** this study,we investigated the degree to which CO2fertilization influences vegetation changes,along with their spatial and temporal differences,in the subtropical humid karst region using time-lag effect analysis,a random forest model,and multiple regression *** showed that CO2fertilization plays an important role in vegetation changes,exhibiting clear spatial variations across different geomorphological zones,with its degree of influence ranging mainly between 11%and 25%.The highest contribution of CO2fertilization was observed in the karst basin and non-karstic region,whereas the lowest contribution was found in the karst plateau *** studies have primarily attributed vegetation changes in subtropical humid karst region to ecological engineering,leading to an overestimation of its contribution to these *** findings of this study enhance the understanding of the mechanism of vegetation changes in humid karst region and provide theoretical and practical insights for ecological and environmental protection in these regions.

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Thermospheric neutral wind studies over the equatorial region:A review

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Earth and Planetary Physics 2025年第1期9卷 81-100页

作者： Siti Syazwani Nasuha Idahwati Sarudin Nurul Shazana Abdul Hamid Ahmad Fairuz Omar School of Physics Universiti Sains Malaysia11800 USMPulau PinangMalaysia Department of Applied Physics Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 UKM BangiSelangorMalaysia Space science Centre(ANGKASA) Institute of Climate ChangesUniversiti Kebangsaan Malaysia43600 UKM BangiSelangorMalaysia

Thermospheric neutral winds(TNWs)refer to the neutral gases in the thermosphere circulating as tides,which play a crucial role in the dynamics of the thermosphere-ionosphere system(TIS).Global geospace neutral winds,particularly over the magnetic equator,have been a subject of study for several ***,despite the known importance of neutral winds,a comprehensive understanding and characterization of the winds is still *** ground-based and satellite missions have provided valuable information on the contribution of neutral winds to the global atmospheric ***,efforts in the global monitoring of neutral winds are still lacking,and the drivers behind the behavior of TNWs as well as their influence on the TIS remain *** address these knowledge gaps in the global circulation of TNWs,it is crucial to develop a deep understanding of the neutral wind characteristics over different *** low-latitude equatorial region in particular has been observed to exert complex influences on TNWs because of the unique effects of the Earth’s magnetic field at the dip *** neutral winds over this region will provide valuable insights into the unique dynamics and processes that occur in this region,thereby enhancing our understanding of their role in the overall dynamics of the ***,through empirical observations,an improved ability to accurately model and predict the behavior of this region can be *** review article addresses challenges in understanding equatorial winds by reviewing historical measurements,current missions,and the interactions of ionospheric and thermospheric phenomena,emphasizing the need for comprehensive measurements to improve global atmospheric dynamics and weather forecasting.

关键词： thermospheric neutral wind thermosphere-ionosphere system dip equator equatorial region

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Peaked Traveling Wave Solutions to a Generalized Novikov Equation with Cubic and Quadratic Nonlinearities

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Communications in Theoretical Physics 2014年第6期61卷 742-750页

作者：李国芹屈长征 Center for Nonlinear studies Faculty of Science Ningbo University

The Camassa-Holm equation, Degasperis–Procesi equation and Novikov equation are the three typical integrable evolution equations admitting peaked solitons. In this paper, a generalized Novikov equation with cubic and quadratic nonlinearities is studied, which is regarded as a generalization of these three well-known studied equations. It is shown that this equation admits single peaked traveling wave solutions, periodic peaked traveling wave solutions, and multi-peaked traveling wave solutions.

关键词： generalized Novikov equation Camassa-Holm equation Degasperis-Procesi equation peakedtraveling wave solution

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Piper protrusum(Piperaceae),a new species from southern Thailand based on morphological and molecular evidence

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Journal of Systematics and Evolution 2011年第5期49卷 468-475页

作者： Runglawan SUDMOON Tawatchai TANEE Arunrat CHAVEERACH Department of Biology Faculty of ScienceKhon Kaen University faculty of Environment and Resource studies Mahasarakham University

Piper protrusum Chaveer.& Tanee,*** described and *** dominantly comprises three branching types with three different types of leaf blades,bases,and *** critical distinguishing character is the protruded receptacle having a bract and nine *** plants have been discovered in areas of Southern Thailand since 2004 without reproductive *** investigated sites were revisited several times,and an individual with flowers was finally found in July *** analysis of the new species and five similar species is carried out based on DNA *** genetic distances between the new species and five similar species range from 0.25 to 0.35,supporting new species *** data conform to morphological data in validating that it is a new ***,its DNA barcodes have been provided for further identification in case the morphological data is *** sequence data have been submitted to the GenBank database under accession numbers GU980898(rpoB gene),GU980899(rpoC1 gene),and GU980900(psbA-trnH region).

关键词： DNA fingerprint new species Piperaceae Piper protrusum Thailand.

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Micro-phytoplankton distribution and biomass in and around a channel-based fish farm: implications for sustainable aquaculture

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Acta Oceanologica Sinica 2014年第12期33卷 180-191页

作者： SADALLY S. B NAZURALLY N TALEB-HOSSENKHAN N BHAGOOLI R Department of Biosciences Faculty of Science University of Mauritius Department of Marine and Ocean science Fisheries and Mariculture Faculty of Ocean Studies

Micro-phytoplankton density, genera composition, chlorophyllaconcentration, and physico-chemical pa-rameters were investigated at five stations （S1-near the coast; S2 and S4-at the edges of the aquaculture set-up; S3-in the center of the set-up; and S5-nearby patch of corals） in and around a coastal channel-based fish farm. The highest total micro-phytoplankton density （TPD）, including diatoms, dinoflagellates and cyanobacteria, was recorded at S3 （（6.28±2.00）×10^6 cells/L） followed by S4 （（5.87±2.81）×10^5 cells/L）, S1 （（4.92×10^5±8.70×10^4） cells/L）, S5 （（3.54×10^5±5.33×10^4） cells/L） and S2 （（2.60±1.14）×10^5cells/L）. Chlorophyll a and nutrient concentrations were highest at S3 and were positively correlated with TPD. Among the 35 genera documented in this study,Chaetoceros spp. was the dominant diatom whilePeridinium spp. was the most dominant dinoflagellate. Very low densities of toxic bloom-forming dinoflagellates were encountered during this study. These results suggest that occurrence of non-bloom densities of micro-phytoplankton, possibly due to the natural flushing of the existing lagoonal channel at the aquaculture site, yielded in little environmental impact and can represent an appropriate sustainable approach for future aquaculture de-velopment.

关键词： chlorophyll a micro-phytoplankton physico-chemical parameters sustainable aquaculture

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