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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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Growth performance,fatty acid profile,gut,and muscle histo-morphology of Malaysian mahseer,Tor tambroides post larvae fed short-term host associated probiotics

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Aquaculture and Fisheries 2024年第1期9卷 35-45页

作者： Mohammod Kamruzzaman hossain Sairatul Dahlianis Ishak Shumpei Iehata Mat Noordin Noordiyana md Abdul Kader Ambok Bolong Abol-Munafi Department of Fisheries(DoF) Matshya BhabonRamnaDhaka1000Bangladesh Higher Institution Centre of Excellence(HICoE) Institute of Tropical Aquaculture and Fisheries(AKUATROP)Universiti Malaysia TerengganuKuala Nerus21030Malaysia Faculty of Fisheries and Food Sciences Universiti Malaysia TerengganuKuala Nerus21030Malaysia Alternative Aquatech Victoria3029Australia

Host associated probiotics(HAPs)provide health benefits to the host when administered as dietary ***,a short-term probiotics application strategy has yet to be optimized.A 90-days study was conducted to evaluate the response of Malaysian mahseer,Tor tambroides post larvae fed with basal diet enriched HAPs for 30-days,and its response following another 60-days feeding with only basal *** experimental diets(Enterococcus faecalis strain 2674(T1),Aeromonas *** A8-29(T2)and *** strain FC11682(T3))were prepared by spray-coating each HAPs on a basal diet at 1×108 CFU/g *** in growth performances,whole-body proximate and fatty acid composition,muscle morphometry,and gut morphology were *** showed that after 30 days,T3 fish produced highest *** HAP treatment groups showed better muscle distribution profile,improved fatty acid composition,and higher villus length,width and area,than control *** 90 days,the growth of T3 fish was still the *** distribution profile and villus growth were higher in HAP treatments,although only total n-6 PUFA,total MUFA,linoleic acids,and linolenic acids in HAP treated fish remained high after probiotics *** difference in whole-body proximate composition was observed in both 30 and 90 *** findings demonstrated that short-term application of HAPs at an early stage could be used to boost *** growth,with *** strain FC11682 showing the best efficacy.

关键词： Enhance culture Enterococcus faecalis Aeromonas sp. Muscle hypertrophy Short-term feeding Tor tambroides

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Advances in DNA methylation and its role in cytoplasmic male sterility in higher plants

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Journal of Integrative Agriculture 2024年第1期23卷 1-19页

作者： Atiqur Rahman Hasan Sofiur Rahman Shakil Uddin Naima Sultana Shirin Akhter Ujjal Kumar Nath Shamsun Nahar Begum Mazadul Islam Afroz Naznin Nurul Amin Sharif Ahmed Akbar hossain Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh 2202Bangladesh Plant Breeding Division Bangladesh Institute of Nuclear AgricultureMymensingh 2202Bangladesh Tuber Crop Research Centre Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh Horticulture Research Centre Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh Biotechnology Division Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh International Rice Research Institute Bangladesh OfficeDhaka 1213Bangladesh Division of Soil Science Bangladesh Wheat and Maize Research InstituteDinajpur 5200Bangladesh

The impact of epigenetic modifications like DNA methylation on plant phenotypes has expanded the possibilities for crop *** methylation plays a part in the regulation of both the chromatin structure and gene expression,and the enzyme involved,DNA methyltransferase,executes the methylation process within the plant *** regulating crucial biological pathways,epigenetic changes actively contribute to the creation of the ***,epigenome editing may assist in overcoming some of the drawbacks of genome editing,which can have minor off-target consequences and merely facilitate the loss of a gene’s *** drawbacks include gene knockout,which can have such off-target *** review provides examples of several molecular characteristics of DNA methylation,as well as some plant physiological processes that are impacted by these epigenetic changes in the *** also discuss how DNA alterations might be used to improve crops and meet the demands of sustainable and environmentally-friendly farming.

关键词： DNA methylation epigenetics CMS male sterility chromatin architecture gene expression higher plants

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The Influence of Rice Husk Ash on Mechanical Properties of the Mortar and Concrete: A Critical Review

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Open Journal of Civil Engineering 2024年第1期14卷 65-81页

作者： md Jahangir Alam Mithun Biswas Mohammad Biplab Mia Shahin Alam md Mosabber hossain College of Civil and Transportation Engineering Hohai University Nanjing China School of Civil Engineering Chang’an University Xi’an China

Increasing the population and infrastructure in both emerging and developed countries requires a considerable amount of cement, which significantly affects the environment. The primary materials of concrete (‘cement’) production emit a large quantity of CO2 into the environment. Also, the cost of conventional building materials like cement gives motivation to find geopolymer waste materials for concrete. To reduce harmful effects on the environment and cost of traditional concrete substance, alternative waste materials like rice husk ash (RHA), ground granulated blast-furnace (GGBS), fly ash (FA), and metakaolin (MK) can be used due to their pozzolanic behavior. RHA waste material with a high silica concentration obtained from burning rice husks can possibly be used as a supplementary cementitious material (SCM) in the manufacturing of concrete, and its strong pozzolanic properties can contribute to the strength and impermeability of concrete. This review paper highlights a summary of the positive effect of using RHA as a partial substitute for cement in building construction, as well as its optimal inclusion of enhanced mechanical properties like compressive strength, flexural strength, and split tensile strength of mortar and concrete.

关键词： Cement Rice Husk Ash RHA Properties Mechanical Properties Carbon Di-oxide Emission and Greenhouse Gas

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Effective Elimination of Hazardous Chromium (VI) Using Periodic Elements and Contemporary Adsorption Methods by Using Magnesium Ferrite Nanoparticle: A Review

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Journal of Environmental Protection 2024年第5期15卷 596-619页

作者： Nazmun Nahar Mahabub hossain Swaron md. Aliuzzaman Sheik md. Jamal Uddin Department of Soil and Environmental Sciences University of Barishal Barishal Bangladesh

A well-known hazardous metal and top contaminant in wastewater is hexavalent chromium. The two forms of most commonly found chromium are chromate ( CrO 4 2− ) and dichromate ( Cr 2 O 7 2− ). Leather tanning, cooling tower blow-down, plating, electroplating, rinse water sources, anodizing baths etc. are the main sources of Cr (VI) contamination. The Cr (VI) is not only non-biodegradable in the environment but also carcinogenic to living population. It is still difficult to treat Cr contaminated waste water effectively, safely, eco-friendly, and economically. As a result, many techniques have been used to treat Cr (VI)-polluted wastewater, including adsorption, chemical precipitation, coagulation, ion-exchange, and filtration. Among these practices, the most practical method is adsorption for the removal of Cr (VI) from aqueous solutions, which has gained widespread acceptance due to the ease of use and affordability of the equipment and adsorbent. It has been revealed that Fe-based adsorbents’ oxides and hydroxides have high adsorptive potential to lower Cr (VI) content below the advised threshold. Fe-based adsorbents were also discovered to be relatively cheap and toxic-free in Cr (VI) treatment. Fe-based adsorbents are commonly utilized in industry. It has been discovered that nanoparticles of Fe-, Ti-, and Cu-based adsorbents have a better capacity to remove Cr (VI). Cr (VI) was effectively removed from contaminated water using mixed element-based adsorbents (Fe-Mn, Fe-Ti, Fe-Cu, Fe-Zr, Fe-Cu-Y, Fe-Mg, etc.). Initial findings suggest that Cr (VI) removal from wastewater may be accomplished by using magnesium ferrite nanomaterials as an efficient adsorbent.

关键词： Chromium (VI) Periodic Elements Adsorption Elimination Magnesium Ferrite

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Net effect of air pollution controls on health risk in the Beijing-Tianjin-Hebei region during the 2022 winter Olympics and Paralympics

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Journal of Environmental Sciences 2024年第1期135卷 560-569页

作者： Changqing Lin Peter K.K.Louie Alexis K.H.Lau Jimmy C.H.Fung Zibing Yuan Minghui Tao Xuguo Zhang md.Shakhaoat hossain Chengcai Li Xiang Qian Lao Division of Environment and Sustainability The Hong Kong University of Science and TechnologyHong KongChina Environmental Protection Department Hong Kong Government SARHong KongChina Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyHong KongChina Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality The Hong Kong University of Science and TechnologyHong KongChina Department of Mathematics The Hong Kong University of Science and TechnologyHong KongChina School of Environment and Energy South China University of TechnologyGuangzhou 510006China Hubei Key Laboratory of Critical Zone Evolution School of Geography and Information EngineeringChina University of GeosciencesWuhan 430074China Department of Public Health and Informatics Jahangirnagar UniversityDhaka 1342Bangladesh Department of Atmospheric and Oceanic Sciences School of PhysicsPeking UniversityBeijing 100871China Jockey Club School of Public Health and Primary Care The Chinese University of Hong KongHong KongChina

Due to the non-linearity in ozone(O_(3))formation,reducing the emission of nitrogen oxides(NO_(x))may increase O_(3) *** the counteractive O_(3) response to NO_(x) reduction,overall impact of air pollution controls can be ambiguous when the assessments focus on the changes in pollutant *** this study,a risk-based method was used to gauge the net effect of air pollution controls on mortality risk in the Beijing–Tianjin–Hebei(BTH)region during the 2022 Winter Olympics and Paralympics(WOP).This mega-event presents a unique opportunity to investigate the efficacy of deep cuts in pollutant *** show that O_(3) concentrations greatly increased as nitrogen dioxide(NO_(2))concentrations decreased in the *** to the active photochemical formations,O_(3) became the dominant pollutant that affected human health during the *** the substantial O_(3) increases,the health benefits of NO_(2) reductions overwhelmed the adverse health effects of O_(3) increases in most regions of the BTH(at 81 out of 112 stations).After considering the impacts of particulate matter,the integrated health risk of air pollution mixtures declined almost everywhere in the *** results underscore the great necessity of changing the assessment paradigm of pollution control from using concentration-based methods to using risk-based *** with the carbon neutrality policy,stringent control of NO_(x)emission from combustion sources is a promising way to achieve synergistic control solutions for air pollution and climate change.

关键词： Ozone Nitrogen dioxide Health risk Carbon neutrality Mega-events

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Applying the Technology Acceptance Model (TAM) in Information Technology System to Evaluate the Adoption of Decision Support System

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Journal of Computer and Communications 2024年第8期12卷 242-256页

作者： md Azhad hossain Anamika Tiwari Sanchita Saha Ashok Ghimire md Ahsan Ullah Imran Rabeya Khatoon Department of Business Administration International American University 3440 Wilshire Blvd STE 1000 Los Angeles CA 90010 United States Department of Business Administration Westcliff University 17877 Von Karman Ave 4th Floor Irvine CA 92614 United States

With the beginning of the information systems’ spreading, people started thinking about using them for making business decisions. Computer technology solutions, such as the Decision Support System, make the decision-making process less complex and simpler for problem-solving. In order to make a high-quality business decision, managers need to have a great deal of appropriate information. Nonetheless, this complicates the process of making appropriate decisions. In a situation like that, the possibility of using DSS is quite logical. The aim of this paper is to find out the intended use of DSS for medium and large business organizations in USA by applying the Technology Acceptance Model (TAM). Different models were developed in order to understand and predict the use of information systems, but the information systems community mostly used TAM to ensure this issue. The purpose of the research model is to determine the elements of analysis that contribute to these results. The sample for the research consisted of the target group that was supposed to have completed an online questionnaire about the manager’s use of DSS in medium and large American companies. The information obtained from the questionnaires was analyzed through the SPSS statistical software. The research has indicated that, this is primarily used due to a significant level of Perceived usefulness and For the Perceived ease of use.

关键词： Information Technology Decision Support System Business Organization in USA Technology Acceptance Model

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Clinical Complementary Medicine and Pharmacology 2024年第1期4卷 85-94页

作者： Iffat Ara Rita Turcio Tasmia Islam md.Sabbir hossain md.Kamrul Hasan Department of Biochemistry and Molecular Biology Tejgaon CollegeNational UniversityGazipur-1700Bangladesh Department of Pharmacy University of Naples Federico IIvia Domenico Montesano49-80131 Napoli NAItaly Department of Genetic Engineering and Biotechnology Jashore University of Science and TechnologyJashore-7408Bangladesh Department of Public Health North South UniversityDhaka-1229Bangladesh

Background:Licochalcone A(LCA)is a flavonoid derived from the roots of Glycyrrhiza uralensis *** DC and other related *** natural source has been extensively used in complementary medicine,especially traditional Chinese medicine,to treat various *** as a phenolic chalcone compound,LCA has gained significant attention in recent years due to its various pharmacological ***:The objective of this review article is to assess the anti-aging ralated pharmacological properties of ***:An exhaustive search of several scientific databases was conducted using various relevant keywords to write this review article on LCA,focusing on its therapeutic applications and anti-aging-related pharmacological *** inclusion and exclusion criteria were strictly followed to retrieve updated relevant ***:A collection of 292 papers were screened,and 131 were included in this review for an in-depth analysis of Licochalcone A,focusing on its anti-aging-related pharmacological activities and relevant mechanisms,and its toxicity and side ***,the potential of LCA as a pharmacological product is discussed,emphasizing its health benefits and potential as a pharmaceutical ***:These findings indicate that Licochalcone A is a promising natural therapeutic agent for anti-aging therapy and other ailments.

关键词： Licochalcone A Glycyrrhiza uralensis Chalcone Anti-aging Neuroprotective Antioxidant Skin protection Therapeutic agent

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A Novel LSB Steganography Technique for Enhancing Cloud Security

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Journal of Information Security 2024年第3期15卷 355-377页

作者： Ahsan Ullah md. Inzamul Haque md. Mokarom hossain md. Sadman Ahammad Mst. Nishita Aktar Department of Computer Science and Engineering World University of Bangladesh Dhaka Bangladesh

Steganography is a technique that is frequently used to hide hidden information in multimedia artifacts including music, video, and images. In order to protect data saved in the cloud, this paper presents a steganography method for encrypting sound utilizing LSB-based computation. By using the least significant bit (LSB) of a byte to represent a message and then substituting each LSB bit with a binary message and encrypting a significant quantity of data. The proposed system uses the LSB technique of picture steganography, Multi-Level Encryption Algorithm (MLEA) and Two-Level Encryption Algorithm (TLEA) data encryption to give the highest level of cloud security. Compared to other current schemes, the performance of the suggested method is 1.732125% better on average.

关键词： Steganography LSB Cloud Computing Security Cryptography TLEA MLEA

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Capacity maximizing in massive MIMO with linear precoding for SSF and LSF channel with perfect CSI

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Digital Communications and Networks 2021年第1期7卷 92-99页

作者： Tasher Ali Sheikh Joyatri Bora md.anwar Hussain Department of Electronics and Communication Engineering Nordi Eastern Regional Institute of Science and TechnologyNirjuliArunachal Pradesh791109India

The capacity of a massive MIMO cellular network depends on user and antenna selection algorithms,and also on the acquisition of perfect Channel State Information(CSD).Low computational cost algorithms for user and an-tenna selection significantly may enhance the system capacity,as it would consume a smaller bandwidth out of the total bandwidth for downlink *** objective of this paper is to maximize the system sum-rate capacity with efficient user and antenna selection algorithms and linear *** consider in this paper,a slowly fading Rayleigh channel with perfect acquisition of CSI to explore the system sum-rate capacity of *** MIMO *** user selection,we apply three algorithms,namely Semi orthogonal user selection(SUS),Descending Order of SNR-based User Scheduling(DOSUS),and Random User Selection(RUS)*** all the user selection algorithms,the selection of Base Station(BS)antenna is based on the maximum Signal-to-Noise Ratio(SNR)to the selected *** users are characterized by having both Small Scale Fading(SSF)due to slowly fading Rayleigh channel and *** Fading(ISF)due to distances from the base ***,we use linear precoding techniques,such as Zero Forcing(ZF),Minimum Mean Square Error(MMSE),.and Maximum Ratio Transmission(MRT)to reduce interferences,thereby improving average system sum-rate *** using SUS,DOSUS,and RUS user selection algorithms with ZF,MMSE,and MRT precoding techniques are *** also analyzed and compared the computational complexity of all the three user selection *** computational complexities of the three algorithms that we achieved in this paper are 0(1)for RUS and DOSUS,and 0(M^2N)for suS which are less than the other conventional user selection methods.

关键词： Massive MIMO User selection Antenna selection Complexity DOSUS and antenna selection 5G

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