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Superconducting joints using reacted multifilament MgB_(2)wires:A technology toward cryogen-free MRI magnets

Journal of Magnesium and Alloys 2024年第1期12卷 159-170页

作者： Dipak Patel Akiyoshi Matsumoto Hiroaki Kumakura Yuka Hara Toru Hara Minoru Maeda Hao Liang Yusuke Yamauchi Seyong Choi Jung Ho Kim Md Shahriar a.hossain School of Mechanical and Mining Engineering The University of QueenslandSt LuciaQueensland 4072Australia National Institute for Materials Science(NIMS) 1-2-1 SengenTsukubaIbaraki 305-0047Japan Department of Electrical Engineering and Kangwon High Magnetic Field Center Institute of Quantum Convergence TechnologyKangwon National UniversityGangwon 24341Republic of Korea Australian Institute for Bioengineering and Nanotechnology(AIBN) The University of QueenslandSt LuciaQueensland 4072Australia Department of Materials Process Engineering Graduate School of EngineeringNagoya UniversityNagoyaAichi 464-8603Japan Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongNorth WollongongNew South Wales 2500Australia

The development of superconducting joining technology for reacted magnesium diboride(MgB_(2))conductors remains a critical challenge for the advancement of cryogen-free MgB_(2)-based magnets for magnetic resonance imaging(MRI).Herein,the fabrication of superconducting joints using reacted carbon-doped multifilament MgB_(2)wires for MRI magnets is *** achieve successful superconducting joints,the powder-in-mold method was employed,which involved tuning the filament protection mechanism,the powder compaction pressure,and the heat treatment *** fabricated joints demonstrated clear superconducting-to-normal transitions in self-field,with effective magnetic field screening up to 0.5 T at 20 *** evaluate the interface between one of the MgB_(2)filaments and the MgB_(2)bulk within the joint,serial sectioning was conducted for the first time in this type of superconducting *** serial sectioning revealed space formation at the interface,potentially caused by the volume shrinkage associated with the MgB_(2)formation or the combined effect of the volume shrinkage and the different thermal expansion coefficients of the MgB_(2)bulk,the filament,the mold,and the sealing *** findings are expected to be pivotal in developing MgB_(2)superconducting joining technology for MRI magnet applications through interface engineering.

关键词： Mg B2 superconducting joint MgB_(2)conductor MRI applications Cryogen-free magnet Persistent-mode operation

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Effects of aspect ratio on unsteady solutions through curved duct flow

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Applied Mathematics and Mechanics(English Edition) 2013年第9期34卷 1107-1122页

作者： R.N.MONDAL S.ISLAM K.UDDIN a.hossain Department of Mathematics Jagannath University Mathematics Discipline Khulna University Department of Mathematics University of Dhaka

The effects of the aspect ratio on unsteady solutions through the curved duct flow are studied numerically by a spectral based computational procedure with a temperature gradient between the vertical sidewalls for the Grashof number 100 ≤ Gr ≤ 2 000. The outer wall of the duct is heated while the inner wall is cooled and the top and bottom walls are adiabatic. In this paper, unsteady solutions are calculated by the time history analysis of the Nusselt number for the Dean numbers Dn = 100 and Dn = 500 and the aspect ratios 1≤γ≤ 3. Water is taken as a working fluid （Pr =7.0）. It is found that at Dn = 100, there appears a steady-state solution for small or large Gr. For moderate Gr, however, the steady-state solution turns into the periodic solution if γ is increased. For Dn = 500, on the other hand, it is analyzed that the steady-state solution turns into the chaotic solution for small and large Gr for any γ lying in the range. For moderate Gr at Dn = 500, however, the steady-state flow turns into the chaotic flow through the periodic oscillating flow if the aspect ratio is increased.

关键词： curved duct secondary flow aspect ratio time-evolution Dean number

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Recent progress in MgB_(2)superconducting joint technology

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镁合金学报(英文) 2023年第7期11卷 2217-2229页

作者： Hao Liang Dipak Patel Mahboobeh Shahbazi Andrzej Morawski Daniel Gajda Matt Rindfleisch Richard Taylor Yusuke Yamauchi Md Shahriar a.hossain School of Mechanical and Mining Engineering The University of QueenslandSt LuciaQueensland 4072Australia QUT Centre for Materials Science and School of Chemistry and Physics Queensland University of TechnologyBrisbaneQueensland 4001Australia Institute of High Pressure Physics Polish Academy of Sciences(PAS)Sokolowska 29/37Warsaw 01-142Poland Institute of Low Temperature and Structure Research Polish Academy of Sciences(PAS)Okólna 2Wrocław 50-422Poland Hyper Tech Research Inc.539 Industrial Mile RdColumbusOhio 43228USA Applied Superconductivity Laboratory Queensland University of TechnologyBrisbaneQueensland 4001Australia Australian Institute for Bioengineering and Nanotechnology(AIBN) The University of QueenslandSt LuciaQueensland 4072Australia Department of Materials Process Engineering Graduate School of EngineeringNagoya UniversityFuro-choChikusa-kuNagoya 464-8603Japan The Commonwealth Scientific and Industrial Research Organisation(CSIRO) LindfieldNew South Wales 2070Australia

Magnesium diboride(MgB_(2))magnets have the potential to be the next-generation liquid-helium-free magnet for magnetic resonance imaging(MRI)application due to their relatively high superconducting transition temperature,high current density and low raw material cost compared with current commercial niobium-titanium(Nb-Ti)magnets.A typical superconducting magnet includes several *** produce an ultra-stable magnetic field for imaging in MRI,a superconducting electromagnet operating in a persistent mode is *** coils of the electromagnet in MRI are short-circuited to operate in the persistent mode by connecting coils with superconducting ***-sistent joints have been demonstrated for in-situ and ex-situ wires of both mono-and multi-filamentary structures,made predominantly by PIT techniques similar to those used in wire *** realise further engagement of MgB_(2)in MRI applications,enhancing the performance of MgB_(2)superconducting joints is *** literature review summarises research and development on MgB_(2)superconducting joining technology.

关键词： MgB_(2) Superconducting joints Persistent-mode magnets MRI application Field-decay measurement

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Post-traumatic thrombotic microangiopathy: What trauma surgeons need to know?

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Chinese Journal of Traumatology 2021年第2期24卷 69-74页

作者： Mohammad a.hossain Nasim Ahmed Varsha Gupta Ravneet Bajwa Marjan Alidoost Arif Asif Tushar Vachharajani Department of Medicine Hackensack Meridian Health Jersey Shore University Medical CenterNeptuneNJ07753USA Department of Surgery Division of Trauma SurgeryHackensack Meridian Health Jersey Shore University Medical CenterNeptuneNJ07753USA Global Nephrology Glickman Urological&Kidney InstituteCleveland ClinicClevelandOH44103USA

Thrombotic microangiopathy(TMA)is characterized by systemic microvascular thrombosis,target organ injury,anemia and *** thrombocytopenic purpura,atypical hemolytic uremic syndrome and Shiga toxin E-coli-related hemolytic uremic syndrome are the three common forms of ***,TMA is encountered during pregnancy/postpartum period,malignant hypertension,systemic infections,malignancies,autoimmune disorders,***,the patients presenting with trauma have been reported to suffer from *** carries a high morbidity and mortality,and demands a prompt recognition and early intervention to limit the target organ *** trauma surgeons are the first line of defense for patients presenting with trauma,the prompt recognition of TMA for these experts is critically *** treatment of post-traumatic TMA can help improve the patient outcomes,if the diagnosis is made *** treatment of TMA is also different from acute blood loss anemia namely in that plasmapheresis is recommended rather than platelet *** article familiarizes trauma surgeons with TMA encountered in the context of ***,it provides a simplified approach to establishing the diagnosis of *** trauma patients can require multiple transfusions,the development of disseminated intravascular coagulation must be ***,the article also provides different features of disseminated intravascular coagulation and ***,the article suggests practical points that can be readily applied to the management of these patients.

关键词： Trauma Microangiopathy Complement amplifying condition

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Interplay between cold densification and malic acid addition (C4H6O5) for the fabrication of near-isotropic MgB2 conductors for magnet application

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Journal of Magnesium and Alloys 2020年第2期8卷 493-498页

作者： Md.Shahriar a.hossain Carmine Senatore Yusuke Yamauchi Mislav Mustapic Daniel Gajda Dipak Patel Aslam Khan Jung Ho Kim Andrzej J Morawski Rene Flukiger School of Mechanical and Mining Engineering The University of QueenslandBrisbaneQLD 4072Australia Department of Quantum Matter Physics(DQMP) University of GenevaGenevaSwitzerland Key Laboratory of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology(AIBN) The University of QueenslandBrisbaneQLD 4072Australia International Center for Materials Nanoarchitectonics(WPI-MANA) National Institute for Materials Science(NIMS)1-1 NamikiTsukubaIbaraki 305-0044Japan University of Osjek Departiment of Physics31000OsijekCroatia Institute of Low Temperature and Structure Research PAS Okolna 250-422 WroclawPoland Research Center for Functional Materials National Institute for Materials Science(NIMS)1-2-1 SengenTsukubaIbaraki 305-0047Japan King Abdullah Institute for Nanotechnology King Saud UniversityRiyadh11451Saudi Arabia Australian Institute for Innovative Materials(AIIM) University of WollongongSquires WayNorth WollongongNSW 2500Australia Institute of High Pressure Physics Polish Academy of Sciences(PAS)Sokoiowska 29/3701-142 WarsawPoland

The effect of cold high pressure densification(CHPD)on anisotropy of the critical current density(Jc)in《in situ》single core binary and alloyed MgB2 tapes has been determined as a function of temperatures at 4.2 K,20 K and 25 K as well as at applied magnetic fields up to 19 *** study includes binary and C4H6O5(malic acid)doped MgB2 tapes before and after *** is remarkable that the CHPD process not only improved the Jc values,in particular at the higher magnetic fields,but also decreased the anisotropy ratio,Г=JC^///JC^⊥In binary MgB2 tapes,the anisotropy factor F increases with higher aspect ratios,even after applying *** malic acid(C4H6O5)doped tapes,however,the application of CHPD leads only to small enhancements ofГ,even for higher aspect *** is attributed to the higher carbon content in the MgB2 filaments,which in turn is a consequence of the reduced chemical reaction path in the densified *** all applied field values,it was found that CHPD processed C4H6O5 doped tapes exhibit an almost isotropic *** constitutes an advantage in view of industrial magnet applications using wires with square or slightly rectangular configuration.

关键词： Magnesium diboride Cold high pressure densification Anisotropy Tapes Critical current density

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Applications of artificial intelligence in geothermal resource exploration: A review

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Deep Underground Science and Engineering 2024年第3期3卷 269-285页

作者： Mahmoud AlGaiar Mamdud hossain Andrei Petrovski Aref Lashin Nadimul Faisal School of Engineering Robert Gordon UniversityAberdeenUK National Subsea Centre AberdeenUK Petroleum and Natural Gas Engineering Department College of EngineeringKing Saud UniversityRiyadhSaudi Arabia

Artificial intelligence (AI) has become increasingly important in geothermal exploration,significantly improving the efficiency of resource *** review examines current AI applications,focusing on the algorithms used,the challenges addressed,and the opportunities *** addition,the review highlights the growth of machine learning applications in geothermal exploration over the past decade,demonstrating how AI has improved the analysis of subsurface data to identify potential *** techniques such as neural networks,support vector machines,and decision trees are used to estimate subsurface temperatures,predict rock and fluid properties,and identify optimal drilling *** particular,neural networks are the most widely used technique,further contributing to improved exploration ***,the widespread adoption of AI in geothermal exploration is hindered by challenges,such as data accessibility,data quality,and the need for tailored data science training for industry ***,the review emphasizes the importance of data engineering methodologies,data scaling,and standardization to enable the development of accurate and generalizable AI models for geothermal *** is concluded that the integration of AI into geothermal exploration holds great promise for accelerating the development of geothermal energy *** effectively addressing key challenges and leveraging AI technologies,the geothermal industry can unlock cost‐effective and sustainable power generation opportunities.

关键词： artificial intelligence geothermal energy geothermal exploration geothermometry hidden/blind geothermal resources machine learning

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Genome-Wide Analysis for Yield-Related Agronomic and Biochemical Traits of Chinese and Bangladeshi Grass Pea Genotypes Using SSR Markers

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PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY 2024年第8期93卷 1781-1804页

作者： Rahman, Md. Mosiur Quddus, Md. Ruhul Xu, Quanle hossain, Muhammad Malek Liu, Rong Li, Mengwei Yan, Xin Li, Guan Ji, Yishan Wang, Chenyu Sarker, Ashutosh Yang, Tao Zong, Xuxiao hossain, Md. Monoar Alfarraj, Saleh Ansari, Mohammad Javed Maitra, Sagar hossain, Akbar Chinese Acad Agr Sci CAAS Inst Crop Sci Beijing 100081 Peoples R China Bangladesh Agr Res Inst BARI Pulses Res Ctr Gazipur 1701 Bangladesh Bangladesh Rice Res Inst BRRI Hybrid Rice Div Gazipur 1701 Bangladesh Northwest Agr & Forestry Univ Yangling 712199 Peoples R China Int Ctr Agr Res Dry Areas ICARDA New Delhi 110012 India Bangladesh Wheat & Maize Res Inst Wheat Breeding Div Dinajpur 5200 Bangladesh King Saud Univ Coll Sci Zool Dept Riyadh 11451 Saudi Arabia Mahatma Jyotiba Phule Rohilkhand Univ Hindu Coll Moradabad Dept Bot Moradabad 244001 India Centurion Univ Technol & Management Dept Agron & Agroforestry R Sitapur 761211 Odisha India Bangladesh Wheat & Maize Res Inst Soil Sci Div Dinajpur 5200 Bangladesh

Grass pea ( Lathyrus sativus L.) is an imperative food crop cultured in dryland agricultural ecology. It is a vital source of dietary protein to millions of populaces living in low-income countries in South-East Asia and Africa. This study highlights the improvement of genomic properties and their application in marker-trait relationships for 17 yield-related characters in 400 grass pea genotypes from China and Bangladesh. These characters were assessed via 56 polymorphic markers using general linear model (GLM) (P+G+Q) and mixed linear model (MLM) (P+G+Q+K) in the tassel software based on the linkage disequilibrium and population structure analysis. Population structure analysis showed two major groups and one admixed group in the populace. Statistically signi fi cant loci pairs of linkage disequilibrium (LD) mean value (D ' ) was 0.479. A total of 99 and 61 marker-trait associations in GLM and MLM models allied to the 17 traits were accepted at a 5% level of signi fi cance. Among these markers, 21 markers were associated with more than one trait; 12 marker-trait associations passed the Bonferroni correction threshold. Both models found six markers C41936, C39067, C34100, C47146, C47638, and C43047 signi fi cantly associated with days to maturity, fl ower color, plant height, and seed per pod were detected in the Hebei and Liaoyang location ( p <= 0.01), and the interpretation rate (R 2 value) 11.2% to 43.6%. Conferring to the consequences, the association analysis methodology may operative system for quantitative, qualitative, and biochemical traits related to gene position mapping and support breeders in improving novel approaches for advancing the grass pea quality.

关键词： Grass pea dryland agriculture genome-wide association yield contributing traits SSR markers LATHYRUS-SATIVUS L. QUALITY TRAITS MORPHOLOGICAL TRAITS GENETIC-VARIABILITY ODAP ENVIRONMENT DIVERSITY SOFTWARE PROTEIN

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Enemies atpeace:Recentprogressin Agrobacterium-mediated cereal transformation

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The Crop Journal 2024年第2期12卷 321-329页

作者： Shaoshuai Liu Ke Wang Shuaifeng Geng Moammar hossain Xingguo Ye Aili Li Long Mao Karl-Heinz Kogel State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Institute of Phytopathology Centre for BioSystemsLand Use and NutritionJustus Liebig UniversityHeinrich Buff-Ring 26-32D-35392GiessenGermany

Agrobacterium tumefaciens mediated plant transformation is a versatile tool for plant genetic engineering following its discovery nearly half a century *** modifications were made in its application to increase efficiency,especially in the recalcitrant major cereals *** breakthroughs in transformation efficiency continue its role as a mainstream technique in CRISPR/Cas-based genome editing and gene *** modifications led to higher transformation frequency and lower but more stable transgene copies with the capability to revolutionize modern *** this review,we provide a brief overview of the history of Agrobacterium-mediated plant transformation and focus on the most recent progress to improve the system in both the Agrobacterium and the host recipient.A promising future for transformation in biotechnology and agriculture is predicted.

关键词： Agrobacterium tumefaciens Cereal species Genome editing Genetic engineering Plant breeding

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Upgrade from aerated static pile to agitated bed systems promotes lignocellulose degradation in large-scale composting through enhanced microbial functional diversity

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Journal of Environmental Sciences 2024年第10期144卷 55-66页

作者： Hanxia Yu Haoyan Xiao Huiyu Deng Adam Frew Md.Akhter hossain Wenbing Tan Beidou Xi School of Geographical Sciences Fujian Normal UniversityFuzhou 350007China Hawkesbury Institute for the Environment Western Sydney UniversityLocked Bag 1797PenrithNSW 2751Australia State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

Composting presents a viable management solution for lignocellulose-rich municipal solid ***,our understanding about the microbial metabolic mechanisms involved in the biodegradation of lignocellulose,particularly in industrial-scale composting plants,remains *** study employed metaproteomics to compare the impact of upgrading from aerated static pile(ASP)to agitated bed(AB)systems on physicochemical parameters,lignocellulose biodegradation,and microbial metabolic pathways during largescale biowaste composting process,marking the first investigation of its *** degradation rates of lignocellulose including cellulose,hemicellulose,and lignin were significantly higher in AB(8.21%-32.54%,10.21%-39.41%,and 6.21%-26.78%)than those(5.72%-23.15%,7.01%-33.26%,and 4.79%-19.76%)in ASP at three thermal stages,*** AB system in comparison to ASP increased the carbohydrate-active enzymes(CAZymes)abundance and production of the three essential enzymes required for lignocellulose decomposition involving a mixture of bacteria and fungi(i.e.,Actinobacteria,Bacilli,Sordariomycetes and Eurotiomycetes).Conversely,ASP primarily produced exoglucanase andβ-glucosidase via fungi(i.e.,Ascomycota).Moreover,AB effectively mitigated microbial stress caused by acetic acid accumulation by regulating the key enzymes involved in acetate conversion,including acetyl-coenzyme A synthetase and acetate ***,the AB upgraded from ASP facilitated the lignocellulose degradation and fostered more diverse functional microbial communities in large-scale *** findings offer a valuable scientific basis to guide the engineering feasibility and environmental sustainability for large-scale industrial composting plants for treating lignocellulose-rich *** findings have important implications for establishing green sustainable development models(e.g.,a circular economy based onmaterial recovery)and for achieving sustainable development goals.

关键词： Bacterial and fungal community Large-scale composting Lignocellulose degradation Microbial metabolism Metaproteomic analysis

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Enhancement of coercivity,permeability,and dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites for memory and high frequency devices

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Journal of Rare Earths 2024年第6期42卷 1128-1135,I0005页

作者： I.Sardar M.D.hossain M.S.Sikder M.N.I.Khan M.R.Rahman Physics Discipline Khulna UniversityKhulna9208Bangladesh Department of Physics Khulna University of Engineering&TechnologyKhulna9203Bangladesh Department ofComputer Science and Engineering Northern University of Business&Technology KhulnaKhulna9100Bangladesh Material Science Division Atomic Energy CentreDhaka1000Bangladesh

Spinel cubic ferrites have huge applications in me mory and high frequency *** the improvement of these modern devices,the magnetic coercivity,permeability,and dielectric properties of a ferrite are the important *** article focuses on improving the magnetic coercivity,magnetic permeability,and dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites,where x=0.00,0.06,and *** X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),field emission scanning electron microscopy(FESEM),energy dispersive X-ray(EDX),vibrating sample magnetometer(VSM),and an impedance analyzer were used to characterize the structural,magnetic,and dielectric properties of the *** XRD patterns indicate the formation of spinel cubic structure of the samples with a secondary peak(EuFeO_(3))for Eu doped *** densities and porosities of the samples follow an inverse trend,where the doped samples’lattice parameters are increased with the increment of rare earth Eu *** FTIR analysis also proves the spinel cubic phase of the *** average grain size of the ferrites is obtained via FESEM images,and it is increased from 121 to 198 *** analysis confirms that doping of the Eu content also changes other hysteresis loop properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ***,the coercivity of the Eu doped samples is greater than that of the mother alloy(x=0.00).The EDX study shows that there is no impurity contamination in the *** permeability and dielectric measurements show an improved quality factor of the Eu-doped samples with low magnetic and dielectric *** dependent resistivity and impedance analysis also show the improved *** the observed properties of the samples,all the investigated ferrites might be strong candidates for potential applications in memory devices,magnetic sensors,and high frequency applications.

关键词： Ferrites Raree arths Coercivity Permeability EDX Resistivity

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