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The role of functional materials to produce high areal capacity lithium sulfur battery

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Journal of Energy Chemistry 2020年第3期29卷 195-209页

作者： masud rana Bin Luo Mohammad Rejaul Kaiser Ian Gentle Ruth Knibbe Materials Engineering School of Mechanical and Mining EngineeringUniversity of QueenslandSt LuciaQLD 4072Australia Nanomaterials Centre School of Chemical Engineering and Australian Institute for Bioengineering and NanotechnologyThe University of Queensland QLDSt Lucia 4072Australia School of Chemistry and Molecular Biosciences Faculty of ScienceThe University of QueenslandSt LuciaQLD 4072Australia Commonwealth Scientific and Industrial Research Organization(CSIRO) Manufacturing Business Unit36 Bradfield RoadLindfieldNSW 2070Australia

The lithium sulfur batteries(LSBs) are considered as one of the promising next generation energy storage devices due to the high theoretical specific capacity of sulfur(1675 m Ah g-1), naturally available, low ***, the practical LSBs are impeded by the well-known "shuttle effect" combined with other technical drawbacks. The "shuttle effect" causes rapid capacity decay, severe self-discharging and low active material utilization. The polysulfide(PS) which has lone pair electrons in each sulfur atom is considered as Lewis base and shows strong affinity to various polar, Lewis acid and catenation interactive materials but very weakly interacts with the non-polar conductive carbons. The "shuttle effect" occurs due to the diffusion of high order PS from the cathode to the anode and then low-order PS back to the cathode. The PS is polar and, due to a lone pair of electrons associated with the sulfur atom, is considered a Lewis base. As such, the PS shows a strong affinity with various polar and Lewis acid materials. In addition, a more novel trapping can be performance through a catenation reaction. For LSBs to compete with the state-of-the-art lithium ion batteries(LIBs), the LSB areal capacity need to be ~6 m Ah cm-2(which is proportional to sulfur loading). To achieve this target the PS shuttling needs to mitigate, which can be achieved through using functional materials. This review addresses the aforementioned phenomena by considering the PS phase interacts with the various functional materials and how this impacts areal capacity and cycling stability of LSBs.

关键词： Sulfur loading Specific capacity Areal capacity Polysulfides Chemical interaction

Oxygen defects boost polysulfides immobilization and catalytic conversion:First-principles computational characterization and experimental design

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Nano Research 2020年第8期13卷 2299-2307页

作者： Qiu He Bin Yu Huan Wang masud rana Xiaobin Liao Yan Zhao State Key Laboratory of Silicate Materials for Architectures International School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Materials Engineering School of Mechanical and Mining EngineeringThe University of QueenslandSt LuciaQLD4072Australia The Institute of Technological Sciences Wuhan UniversityWuhan430072China

Although some experiments have shown that point defects in a cathode host material may enhance its performance for lithium-sulfur battery(LSB),the enhancement mechanism needs to be well investigated for the design of desired sulfur ***,the first principle density functional theory(DFT)is adopted to investigate a high-performance sulfur host material based on oxygen-defective TiO2(D-TiO2).The adsorption energy comparisons and Gibbs free energy analyses verify that D-TiO2 has relatively better performances than defect-free TiO2 in terms of anchoring effect and catalytic conversion of ***,D-TiO2 is capable of absorbing the most soluble and diffusive long-chain *** newly designed D-TiO2 composited with three-dimensional graphene aerogel(D-TiO2@Gr)has been shown to be an excellent sulfur host,maintaining a specific discharge capacity of 1,049.3 mAhg^−1 after 100 cycles at 1C with a sulfur loading of 3.2 mgcm^−*** with the sulfur mass loading increasing to 13.7 mgcm^−2,an impressive stable cycling is obtained with an initial areal capacity of 14.6 mAhcm^−2,confirming the effective enhancement of electrochemical performance by the oxygen *** DFT calculations shed lights on the enhancement mechanism of the oxygen defects and provide some guidance for designing advanced sulfur host materials.

关键词： oxygen defects catalytic conversion lithium-sulfur battery density functional theory

Separator coatings as efficient physical and chemical hosts of polysulfides for high-sulfur-loaded rechargeable lithium–sulfur batteries

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Journal of Energy Chemistry 2020年第5期29卷 51-60页

作者： masud rana Ming Li Qiu He Bin Luo Lianzhou Wang Ian Gentle Ruth Knibbe Materials Engineering School of Mechanical and Mining EngineeringThe University of QueenslandSt LuciaQLD 4072Australia Nanomaterials Centre School of Chemical Engineering and Australian Institute for Bioengineering and NanotechnologySt LuciaThe University of Queensland QLD 4072Australia School of Chemistry and Molecular Biosciences Faculty of ScienceThe University of QueenslandSt LuciaQLD 4072Australia State School Key Laboratory of Silicate Materials for Architectures International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070HubeiChina

Lithium-sulfur batteries(LSBs)are promising alternative energy storage devices to the commercial lithium-ion ***,the LSBs have several limitations including the low electronic conductivity of sulfur(5×10^-30S cm^-1),associated lithium polysulfides(PSs),and their migration from the cathode to the *** this study,a separator coated with a Ketjen black(KB)/Nafion composite was used in an LSB with a sulfur loading up to 7.88 mg cm^-2to mitigate the PS migration.A minimum specific capacity(Cs)loss of 0.06%was obtained at 0.2 C-rate at a high sulfur loading of 4.39 mg cm^-***,an initial areal capacity up to 6.70 mAh cm^-2 was obtained at a sulfur loading of 7.88 mg cm^-*** low Cs loss and high areal capacity associated with the high sulfur loading are attributed to the large surface area of the KB and sulfonate group(SO3^-)of Nafion,respectively,which could physically and chemically trap the PSs.

关键词： Lithium-sulfur battery Separator coating Physical and chemical confinement Self-discharge High sulfur loading Specific capacity loss High areal capacity

Hepatic Histoplasmosis: An Update

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Journal of Clinical and Translational Hepatology 2022年第4期10卷 726-729页

作者： Maimuna Sayeed Md Benzamin Luthfun Nahar masud rana Aisharza Sultana Aishy Department of Paediatric Gastroenterology&Nutrition Bangabandhu Shiekh Mujib Medical University(BSMMU)DhakaBangladesh Hazi Asmot Ali Medical Centre BhairabKishoregonjDhakaBangladesh Jalalabad Ragib-Rabeya Medical College SylhetBangladesh

Histoplasma capsulatum is the most common cause of en-demic mycosis in developing countries. It is a self-limited and asymptomatic disease in immunocompetent individu-als but remains a frequent cause of opportunistic infection in patients with compromised immune status. Liver in-volvement as a part of disseminated histoplasmosis is well known. However, liver infection as a primary manifestation of histoplasmosis without evidence of primary lung involve-ment is rare. In conclusion, clinicians should be aware of isolated histoplasmosis affecting the hepatobiliary system, and careful evaluation is warranted to confirm the diagno-sis. Given the appropriate clinical context, histoplasmosis should be considered in both immunocompetent and immu-nocompromised patients, regardless of pulmonary symp-toms, in non endemic as well as endemic areas.

关键词： Histoplasma capsulatum Histoplasmosis Hepatic manifestation Mycosis

Gradient Optimizer Algorithm with Hybrid Deep Learning Based Failure Detection and Classification in the Industrial Environment

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Computer Modeling in Engineering & Sciences 2024年第2期138卷 1341-1364页

作者： Mohamed Zarouan Ibrahim M.Mehedi Shaikh Abdul Latif Md.masud rana Department of Electrical and Computer Engineering(ECE) King Abdulaziz UniversityJeddah21589Saudi Arabia Center of Excellence in Intelligent Engineering Systems(CEIES) King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Nuclear Engineering King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Electrical and Electronic Engineering Rajshahi University of Engineering and TechnologyRajshahiBangladesh

Failure detection is an essential task in industrial systems for preventing costly downtime and ensuring the seamlessoperation of the system. Current industrial processes are getting smarter with the emergence of Industry ***, various modernized industrial processes have been equipped with quite a few sensors to collectprocess-based data to find faults arising or prevailing in processes along with monitoring the status of *** diagnosis of rotating machines serves a main role in the engineering field and industrial production. Dueto the disadvantages of existing fault, diagnosis approaches, which greatly depend on professional experienceand human knowledge, intellectual fault diagnosis based on deep learning (DL) has attracted the researcher’sinterest. DL reaches the desired fault classification and automatic feature learning. Therefore, this article designs a Gradient Optimizer Algorithm with Hybrid Deep Learning-based Failure Detection and Classification (GOAHDLFDC)in the industrial environment. The presented GOAHDL-FDC technique initially applies continuous wavelettransform (CWT) for preprocessing the actual vibrational signals of the rotating machinery. Next, the residualnetwork (ResNet18) model was exploited for the extraction of features from the vibration signals which are thenfed into theHDLmodel for automated fault detection. Finally, theGOA-based hyperparameter tuning is performedtoadjust the parameter valuesof theHDLmodel *** experimental result analysis of the GOAHDL-FD Calgorithm takes place using a series of simulations and the experimentation outcomes highlight the better resultsof the GOAHDL-FDC technique under different aspects.

关键词： Fault detection Industry 4.0 gradient optimizer algorithm deep learning rotating machineries artificial intelligence

Phytochemical and in vitro biological investigations of methanolic extracts of Enhydra fluctuans Lour

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Asian Pacific Journal of Tropical Biomedicine 2014年第4期4卷 299-305页

作者： Sourov Kuri Mustahsan Billah S.M.masud rana Zannatul Naim Mahmodul Islam Hasanuzzaman Ramjan Ali rana Banik Department of Pharmacy Noakhali Science and Technology University Department of Pharmacy Atish Dipankar University of Science and Technology

Objective:To study the phytochemical and biological properties(antioxidant,anthelmintic and thrombolytic)of methanolic extracts of Enhydra fluctuant Lour.,a plant belonging to the Asteraceae ***:The phytochemical evaluation was carried out by qualitative *** vitro antioxidant activity of extract was studied using free radical scavenging assay,ability of reduction,total phenol and total flavonoid contents determination *** anthelmintic activity was determined using paralysis and death time of Pheretima posthuma(earthworm)and thrombolytic activity by clot disruption ***:The phytochemical evaluation showed significant presence of flavonoids,triterpenes,carbohydrate,reducing sugars,saponins,phenols,diterpenes,protein and *** antioxidant activity was found significant[IC_(50)(135.20±036)μg/mL]as compared to ascorbic acid[(130.00±0.76)μg/mL].The reducing power was increased with *** phenol and total flavonoid contents were(153.08±0.38)mg/mL and(172.04±0.56)mg/mL *** paralysis and death time of earthworms for different concentrations of extract were determined and compared with *** results showed that 10 mg/mL of the crude extract had similar effect with ***,the crude extract showed a concentration depended relationship with its anthelmintic *** clot lysis activity of crude extract was compared to the standard streptokinase's clot lysis(40.13%)activity and found significant(31%).Conclusions:The study proves that the crude methanolic extract of Enhydra fluctuant Lour,has significant antioxidant,anthelmintic and thrombolytic activity containing wide range of phytochemicals.

关键词： Enhydra fluctuans Lour. Phytochemicals Antioxidant DPPH radical scavenging Pheretima posthuma Streptokinase

Determination of Factors and Quality Control of Car Painting Based on FMEA and SPC.V2

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Modern Mechanical Engineering 2018年第2期8卷 158-177页

作者： masud rana Xinmin Zhang Sayed Abdul Akher Department of Mechanical Engineering Shenyang University of Technology Shenyang China Department of Plant Genome Engineering University of Electronic Science and Technology of China Chengdu China

The global automotive industry demands world-class levels of product quality, productivity, and competitiveness as well as continual improvement. To achieve this goal,?many vehicle manufacturers companies use?quality control tools to improve the quality of the product with zero defects and highly satisfied to the customer. Nowadays, there are a lot of quality tools applied to solve the problem quickly but it’s still the fact to find out good and efficient solving way. The study emphasizes the identification of potential failure which failures may have encountered in the production process and it will lead to car scrap, rework and influence of the internal production and quality target. After the complete study of the manufacturing process and production data-failure causes, failure rate and data etc. FMEA discover the weak processes in the form of higher risk priority number in the manufacturing of the car painting process, which required reducing by identifying and implementing of the defects and this will improve the process quality of the painting surface of the car. To analysis, the improvement of the car surface defects SPC (Statistical Process Control) tools are more efficient where can easily visible the defects trends. SPC chart is chronological graphs of process data that are used in manufactures industries to help understand, control and improve the process and that although based on statistical theory area easy for practitioners to use and interpret. In order to orient goal of zero defects of the car, surface uses the PFMEA technique to prioritize?the defects and statistically analyze the roots cause of the defect and control the defects through continues improvements process.

关键词： Quality Management FMEA SPC Control Technology Quality Improvement Paint

Feminist Literary Criticism: A Paradigm of Matriarchy inLiterature

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Journal of Literature and Art Studies 2020年第2期10卷 93-97页

作者： Md.masud rana Amina Rashid Jazan University JazanSaudi Arabia

Feminist literary theory underpins literature from matriarchal perspective revolting against prototype patriarchal ritual *** dogmatism,superstition,close-eyed religious propaganda,language engineering and so *** questions the textual politics of dissipating womankind in *** shatters long-cherishing outlook of gender inequality,gender politics,power relation,sexual objectification,oppression,patriarchy,stereotyping and so *** this connection,this theory sees women along with their experiences,thinking,language,position and role playing,cultural conditioning,diction,and above all,matriarchal assertion in *** literary criticism has been generated from feminism and the basic aim of the theory is to investigate and trace out how female characters have been positioned in literature compared with male characters in terms of social and biological factors of different ages of the past started from *** literary theory has also deconstructed texts from two different perspectives *** written by men and text written by *** paper attempts to evalualte feminist literary criticism as a subtle machinery or paradigm of matriarchy not only in avant-garde but also in old texts of literature.

关键词： Avant-garde feminist literary criticism feminism matriarchy patriarchy androtexts gynotexts psychoanalysis ecrrture feminine

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孟加拉国光伏项目配电网接入影响研究

孟加拉国光伏项目配电网接入影响研究

作者： MD masud rana 华北电力大学(北京)

学位级别：硕士

太阳能是一种可用于有效地产生电能的可再生能源。传统的化石燃料发电导致全球变暖日益恶化,而可再生能源发电是具有生态友好性的。太阳能光伏发电系统的一个重要好处是,其使用的太阳能十分的充足。然而,与其他可再生能源相比,这些太阳... 详细信息

太阳能是一种可用于有效地产生电能的可再生能源。传统的化石燃料发电导致全球变暖日益恶化,而可再生能源发电是具有生态友好性的。太阳能光伏发电系统的一个重要好处是,其使用的太阳能十分的充足。然而,与其他可再生能源相比,这些太阳能光伏发电系统由于其高成本和低效率仍然面临广泛使用的障碍。太阳能光伏发电的可再生能源降低了其为客户提供持续供电的可靠性。由于太阳光辐射的变化,太阳能光伏发电系统的输出功率波动可能导致电网出现不可预期的运行状况。本文研究重点是分析光伏系统集成对电网的影响。通过精确分析太阳能光伏发电一体化对配电网性能的影响,可以实现这一目标。本论文包含六章。在第一章中,介绍了太阳能光伏发电与配电网络的整合情况以及对现有网络功率流动和节点电压的影响。在第二章中,介绍了这一课题的研究背景。讨论了基于孟加拉国电力系统情况的太阳能发电的重要性。此外,本章还研究了太阳能集成对配电网络的影响。在第三章中,分析了孟加拉国电力部门的现状和未来,孟加拉国可再生能源的潜力以及孟加拉国太阳能发电的前景。在第四章中,基于DIgSILENT PowerFactory软件,设计现有的电力系统和提出的太阳能发电厂。本章以Tetulia 33kV的配电网为研究对象,对没有SPVG的现有网络进行了潮流分析,研究了电压水平,电压分布,线损,无功功率对配电网的影响。在第五章中,对现有网络上有和没有SPVG的两种情况进行短路分析。在集成SPVG后,在不同总线上研究和比较的最大和最小故障级别是无关紧要的。计算短路比以定义适合将SPVG集成在所提出的分布式总线上的影响,并且它表明短路容量能够集成。第六章通过对系统持续潮流的仿真得出了本论文的结论,并讨论了该项目能够通过提供电压支持来改善电力系统运行状况。本论文的研究成果有助于分析太阳能发电厂对配电网一体化的影响,特别是节点电压和短路比。

关键词：配电网太阳能潮流分析电压分布短路比 DIgSILENT PowerFactory