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Electronic properties of 2d materials and their junctions

Nano Materials science 2024年第1期6卷 1-23页

作者： Taposhree dutta Neha Yadav Yongling Wu Gary J.Cheng Xiu Liang seeram Ramakrishna Aoussaj sbai Rajeev gupta Aniruddha Mondal Zheng Hongyu Ashish Yadav department of Chemistry Indian Institute of Engineering Science and TechnologyShibpurWest Bengal711103India Center for Advanced Laser Manufacturing(CALM) Shandong University of TechnologyZibo255000PR China school of Industrial Engineering Purdue University315 N.Grant St.West LafayetteIN47907United States Birck Nanotechnology Center Purdue University1205 W State St.West LafayetteIN47907United States Advanced Materials Institute Qilu University of TechnologyShandong Academy of SciencesJinan250014PR China Nanoscience and Nanotechnology Initiative National University of Singapore10 Kent Ridge Crescent119260Singapore Faculty of Applied Phsyics and Mathematics Gdansk University of Technology Narutowicza 11/1280233GdanskPoland department of Physics School of EngineeringUniversity of Petroleum&Energy StudiesDehradun248007UttarakhandIndia department of Physics National Institute of Technology DurgapurDurgapur713209West BengalIndia

With an extensive range of distinctive features at nano meter-scale thicknesses,two-dimensional(2d)materials drawn the attention of the scientific *** tremendous advancements in exploratory research on 2d materials,knowledge of 2d electrical transport and carrier dynamics still in its ***,here we highlighted the electrical characteristics of 2d materials with electronic band structure,electronic transport,dielectric constant,carriers *** atomic thinness of 2d materials makes substantially scaled field-effect transistors(FETs)with reduced short-channel effects conceivable,even though strong carrier mobility required for high performance,low-voltage device *** also discussed here about factors affecting 2d materials which easily enhanced the activity of those materials for various ***,Those 2d materials used in state-of-the-art electrical and optoelectronic devices because of the extensive nature of their electronic band structure.2d materials offer unprecedented freedom for the design of novel p-n junction device topologies in contrast to conventional bulk *** also,describe the numerous 2d p-n junctions,such as homo junction and hetero junction including mixed dimensional ***,we talked about the problems and potential for the future.

关键词： 2d materials Electrical properties p-n junctions Mixed hereto junctions Homo junctions Electrical transport

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Efficacy of stromal vascular fraction for knee osteoarthritis:A prospective,single-centre,non-randomized study with 2 years follow-up

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World Journal of Orthopedics 2024年第5期15卷 457-468页

作者： Madhan Jeyaraman Naveen Jeyaraman Tarun Jayakumar swaminathan Ramasubramanian Rajni Ranjan saurabh Kumar Jha Ashim gupta department of Orthopaedics ACS Medical College and HospitalDr MGR Educational and Research InstituteChennaiTamil Nadu 600077India department of Biotechnology School of Engineering and TechnologySharda UniversityGreater NoidaUttar Pradesh 201310India department of Orthopaedics and Regenerative Medicine South Texas Orthopaedic Research InstituteLaredoTX 78045United States department of Orthopaedics KIMS-Sunshine HospitalHyderabadTelangana 500032India department of Orthopaedics Government Medical CollegeOmandurar Government EstateChennaiTamil Nadu 600002India department of Orthopaedics School of Medical Sciences and ResearchSharda UniversityGreater NoidaUttar Pradesh 201306India department of Zoology Kalindi CollegeUniversity of DelhiNew Delhi 110008India department of Orthopaedics and Regenerative Medicine Regenerative OrthopaedicsNoida 201301Uttar PradeshIndia department of Orthopaedics and Regenerative Medicine Future BiologicsLawrencevilleGA 30043United States department of Orthopaedics and Regenerative Medicine BioIntegrateLawrencevilleGA 30043United States

BACKGROUNd Current osteoarthritis(OA)treatments focus on symptom relief without addressing the underlying disease *** regenerative medicine,current treatments have *** regenerative medicine,more research is needed for intra-articular stromal vascular fraction(sVF)injections in OA,including dosage optimization,long-term efficacy,safety,comparisons with other treatments,and mechanism *** To compare the efficacy of intra-articular sVF with corticosteroid(ICs)injections in patients with primary knee *** The study included 50 patients with Kellgren-Lawrence grades II and III *** were randomly assigned(1:1)to receive either a single intra-articular sVF injection(group A)or a single intra-articular ICs(triamcinolone)(group B)*** were followed up at 1,3,6,12,and 24 *** analog score(VAs)and International Knee documentation Committee(IKdC)scores were administered before the procedure and at all *** safety of sVF in terms of adverse and severe adverse events was *** analysis was performed with sPss Version 26.0,IBM Corp,Chicago,IL,United *** Both groups had similar demographics and baseline clinical ***-up showed minor patient loss,resulting in 23 and 24 in groups A and B *** A experienced a notable reduction in pain,with VAs scores decreasing from 7.7 to 2.4 over 24 months,compared to a minor reduction from 7.8 to 6.2 in Group *** difference in pain reduction in group A was statistically significant from the third month ***,Group A showed significant improvements in knee functionality,with IKdC scores rising from 33.4 to 83.10,whereas Group B saw a modest increase from 36.7 to *** improvement in Group A was statistically significant from 6 months and maintained through 24 *** Our study demonstrated that intra-articular administration of sVF can lead to reduced pain and improved knee function in pa

关键词： Knee osteoarthritis Adipose tissue stromal vascular fraction Regenerative medicine Orthobiologics

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Radioisotope production using lasers:From basic science to applications

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Matter and Radiation at Extremes 2024年第3期9卷 31-44页

作者： M.R.d.Rodrigues A.Bonasera M.scisciò J.A.Pérez-Hernández M.Ehret F.Filippi P.L.Andreoli M.Huault H.Larreur d.singappuli d.Molloy d.Raffestin M.Alonzo G.G.Rapisarda d.Lattuada G.L.Guardo C.Verona Fe.Consoli G.Petringa A.McNamee M.La Cognata s.Palmerini T.Carriere M.Cipriani G.di Giorgio G.Cristofari R.de Angelis G.A.P.Cirrone d.Margarone L.Giuffrida d.Batani P.Nicolai K.Batani R.Lera L.Volpe d.Giulietti s.Agarwal M.Krupka s.singh Fa.Consoli Cyclotron Institute Texas A&M UniversityCollege StationTexas 77840USA Laboratori Nazionali del sud Istituto Nazionale di Fisica Nucleare(LNS-INFN)CataniaItaly ENEA Fusion and Technologies for Nuclear Safety and Security Department-CFrascatiItaly Centro de Láseres Pulsados(clpu) VillamayorSpain Universidad de salamanca SalamancaSpain Centre Lasers Intenses et Applications(CELIA) Universitéde BordeauxCNRSCEATalenceFrance HB11 Energy Holdings Pty FreshwaterNew South WalesAustralia school of Mathematics and Physics Queen’s University BelfastBelfastUnited Kingdom dipartimento di Fisica e Astronomia“E.Majorana ”Università di CataniaCataniaItaly Facoltàdi Ingegneria e Architettura Universitàdegli Studi di Enna“Kore”EnnaItaly dipartimento di Ingegneria Industriale Universitàdi Roma“Tor Vergata”RomaItaly dipartimento di Fisica e Geologia Universitàdegli Studi di PerugiaPerugiaItaly Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly ELI Beamlines Facility the Extreme Light Infrastructure ERICDolni BrezanyCzech Republic ETsIA Universidad Politécnica de MadridMadridSpain dipartimento Fisica “E.Fermi”Universitàdi Pisa and INFNPisaItaly FZU–Institute of Physics of Czech Academy of sciences PragueCzech Republic Institute of Plasma Physics of Czech Academy of sciences PragueCzech Republic

The discovery of chirped pulse amplification has led to great improvements in laser technology,enabling energetic laser beams to be compressed to pulse durations of tens of femtoseconds and focused to a few *** with energies of tens of MeV can be accelerated using,for instance,target normal sheath acceleration and focused on secondary *** such conditions,nuclear reactions can occur,with the production of radioisotopes suitable for medical *** use of high-repetition lasers to produce such isotopes is competitive with conventional methods mostly based on *** this paper,we study the production of^(67)Cu,^(63)Zn,^(18)F,and^(11)C,which are currently used in positron emission tomography and other *** the same time,we study the reactions^(10)B(p,α)^(7)Be and^(70)Zn(p,4n)^(67)Ga to put further constraints on the proton distributions at different angles,as well as the reaction^(11)B(p,α)^(8)Be relevant for energy *** experiment was performed at the 1 PW laser facility at VegaⅢin salamanca,*** distributions of radioisotopes in the forward(with respect to the laser direction)and backward directions were measured using a high purity germanium *** results are in reasonable agreement with numerical estimates obtained following the approach of Kimura and Bonasera[*** ***.,sect.A 637,164–170(2011)].

关键词： purity estimates backward

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The CCd instrument background of the sMILE sXI

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Earth and Planetary Physics 2024年第1期8卷 15-24页

作者： M.W.J.Hubbard O.Hetherington d.J.Hall T.W.Buggey s.Parsons T.Arnold A.Holland C.Pagani s.sembay Centre for Electronic Imaging The Open UniversityMilton KeynesMK76AAUK X-ray and Observational Astronomy Group Department of Physics&AstronomyUniversity of LeicesterLE17RHUK

The EsA and CAs sMILE mission orbit is highly elliptical and will pass through multiple radiation *** soft X-ray Imager(sXI)instrument aboard has a radiation shutter door designed to close when the surrounding radiation flux is *** shutter door will close when passing below an altitude threshold to protect against trapped particles in the Earth’s Van Allen ***,two radiation environments can be approximated based on the shutter door position:open and *** instrument background for the CCds(Charge-Coupled devices)that form the focal plane array of the sXI were evaluated for the two *** to the correlation of the space environment with the solar cycle,the solar minima and maxima,the background was also evaluated at these two *** results demonstrated that the highest instrument background will occur during solar minima due to the main contributing source being Galactic Cosmic Rays(GCRs).It was also found that the open background was highest for solar minima and that the closed background was highest during solar *** is due to the radiation shutter door acting as a scattering centre and the changes in the energy flux distribution of the GCRs between the two solar extremes.

关键词： instrument background X-ray astronomy space radiation

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Enabling Technologies for Autonomous Robotic systems in Manufacturing

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Transactions of Nanjing University of Aeronautics and Astronautics 2024年第4期41卷 403-431页

作者： ERdŐs Gábor ABAI Kristóf BEREGI Richárd CsEMPEsZ János CsERTEG Tamás GOdÓGábor HAJÓs Mátyás HÁY Borbála HORVÁTH dániel HORVÁTH Gergely JUNIKIÁdám KEMÉNY Zsolt KOVÁCs András NACsA János PANITI Imre PEdONE Gianfranco TAKÁCs Emma TIPARY Bence ZAHORÁN László VÁNCZA József Institute for Computer science and Control Hungarian Research Network(HUN-REN SZTAKI)BudapestHungary department of Manufacturing science and Technology Budapest University of Technology and Economics(BME)BudapestHungary EPIC InnoLabs Nonprofit Ltd. BudapestHungary Eötvös Loránd University(ELTE) BudapestHungary

Research of autonomous manufacturing systems is motivated both by the new technical possibilities of cyber-physical systems and by the practical needs of the *** operation in semi-structured industrial environments can now be supported by advanced sensor technologies,digital twins,artificial intelligence and novel communication *** enable real-time monitoring of production processes,situation recognition and prediction,automated and adaptive(re)planning,teamwork and performance improvement by *** paper summarizes the main requirements towards autonomous industrial robotics and suggests a generic workflow for realizing such *** case studies will be presented from recent practice at HUN-REN sZTAKI in a broad range of domains such as assembly,welding,grinding,picking and placing,and *** various solutions have in common that they use a generic digital twin concept as their *** making general recommendations for realizing autonomous robotic solutions in the industry,open issues for future research will be discussed.

关键词： industrial robotics autonomy digital twin enabling technology

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sCN1A rs6732655A/T polymorphism:diagnostic and therapeutic insights for drug-resistant epilepsy

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World Journal of Experimental Medicine 2024年第3期14卷 72-79页

作者： Aroop Viswas Pradeep K dabla dharmsheel shrivastav swapan gupta Manisha Yadav subhash Yadav Bidhan Chandra Koner department of Biochemistry Govind Ballabh Pant Institute of Postgraduate Medical Education and ResearchNew Delhi 110002DelhiIndia department of Neurology Govind Ballabh Pant Institute of Postgraduate Medical Education and ResearchNew Delhi 110002DelhiIndia Multi-disciplinary Research Unit Maulana Azad Medical CollegeNew Delhi 110002DelhiIndia department of Biotechnology Amity University GwaliorGwalior 474005Madhya PradeshIndia department of Biochemistry Maulana Azad Medical CollegeNew Delhi 110002DelhiIndia

BACKGROUNd A significant subset of individuals with epilepsy fails to respond to currently available antiepileptic drugs,resulting in heightened mortality rates,psychosocial challenges,and a diminished quality of *** factors,particularly within the sCN1A gene,and the pro-inflammatory cytokine response is important in intricating the drug resistance in idiopathic epilepsy *** this extended study,we determined the correlation of rs6732655A/T single nucleotide polymorphism to understand the causative association of sCN1A gene with epilepsy drug resistance and inflammatory *** To find the correlation of sCN1A gene rs6732655A/T polymorphism with the drug-resistant epilepsy and inflammatory *** The study enrolled 100 age and sex-matched patients of both drug-resistant and drug-responsive epilepsy *** analysed the rs6732655A/T polymorphism to study its association and causative role in drug-resistant epilepsy cases using restriction fragment length polymorphism *** diagnostic performance of interleukin(IL)-1β,IL-6,and high mobility group box 1(HMGB1)protein levels was evaluated in conjunction with genotypic outcome receiver operating characteristic *** AT and AA genotypes of rs6732655 sCN1A gene polymorphism were associated with higher risk of drug resistance *** biomarkers IL-6,IL1βand HMGB1 demonstrated diagnostic potential,with cutoff values of 4.63 pg/mL,59.52 pg/mL and 7.99 ng/mL,respectively,offering valuable tools for epilepsy ***,specific genotypes(AA and AT)were found to be linked to the elevated levels of IL-1βand IL-6 and potentially reflecting increased oxidative stress and neuro-inflammation in drug-resistant cases supporting the previous reported outcome of high inflammatory markers response in drug resistance *** sCN1A genotypes AA and AT are linked to higher drug-resistant epilepsy *** findings underscore the potential influence of inflammation

关键词： Epilepsy drug resistance sCN1A gene Pro-inflammatory cytokines Genetic factors

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Big Model strategy for Bridge structural Health Monitoring Based on data-driven, Adaptive Method and Convolutional Neural Network (CNN) Group

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structural durability & Health Monitoring 2024年第6期18卷 763-783页

作者： Yadong Xu Weixing Hong Mohammad Noori Wael A.Altabey Ahmed silik Nabeel s.d.Farhan Nanjing Highway development Center Changzhou211106China Nanjing Zhixing Information Technology Co. Ltd.Nanjing210000China department of Mechanical Engineering California Polytechnic State UniversitySan Luis ObispoCA 93405USA department of Mechanical Engineering Faculty of EngineeringAlexandria UniversityAlexandria21544Egypt department of Civil Engineering Nyala UniversityP.O.Box 155NyalaSudan school of Civil Engineering University of LeedsLeedsLS29JTUK

This study introduces an innovative“Big Model”strategy to enhance Bridge structural Health Monitoring(sHM)using a Convolutional Neural Network(CNN),time-frequency analysis,and fine element *** ensemble methods,collaborative learning,and distributed computing,the approach effectively manages the complexity and scale of large-scale bridge *** CNN employs transfer learning,fine-tuning,and continuous monitoring to optimize models for adaptive and accurate structural health assessments,focusing on extracting meaningful features through time-frequency *** integrating Finite Element Analysis,time-frequency analysis,and CNNs,the strategy provides a comprehensive understanding of bridge *** diverse sensor data,sophisticated feature extraction,and advanced CNN architecture,the model is optimized through rigorous preprocessing and hyperparameter *** approach significantly enhances the ability to make accurate predictions,monitor structural health,and support proactive maintenance practices,thereby ensuring the safety and longevity of critical infrastructure.

关键词： structural Health Monitoring(sHM) bridges big model Convolutional Neural Network(CNN) Finite Element Method(FEM)

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Isolated traumatic orbital floor fracture:An analysis of the National Trauma data Bank

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World Journal of Otorhinolaryngology-Head and Neck surgery 2024年第3期10卷 187-192页

作者： Emma de Ravin d Katherine Xu Christian Fritz Harman s.Parhar Karthik Rajasekaran department of Otorhinolaryngology Head and Neck surgery University of PennsylvaniaPhiladelphiaPennsylvaniaUSA Perelman school of Medicine at the University of Pennsylvania PhiladelphiaPennsylvaniaUSA Leonard davis Institute of Health Economics University of PennsylvaniaPhiladelphiaPennsylvaniaUSA

Objectives:To date,no study provides a comprehensive analysis of traumatic orbital floor fractures across the United *** aimed to characterize patient demographics,injury-related variables,and operative management in this ***:The National Trauma data Bank was queried for open or closed orbital floor fractures from 2008 to *** data were ***:Overall,148,592 orbital floor fractures were identified,with 142,577(95.9%)closed-and 6158(4.1%)open-type fractures.A total of 106,243(71.5%)patients were male and the median patient age was 41 *** majority of patients(79.2%)had abbreviated injury scale scores of≤2,indicating minor/moderate *** mechanism of injury(MOI)differed by gender,with the most frequent being unarmed fights in men(34.3%)and falls in women(14.0%).There were 29,600 patients(19.9%)with isolated orbital floor(I-OF)*** MOI most strongly associated with operative intervention of with I-OF fractures were penetrating injuries caused by a firearm(odds ratio[OR]:2.91;95%confidence interval[CI]:1.62–5.20)and cuttings/piercings(OR:2.17;95%CI:1.29–3.65).Conclusion:This large epidemiological study reveals that orbital floor fractures tend to present with minor or moderate injuries and are more likely to require operative intervention in setting of firearm or cut/pierce injuries.

关键词： epidemiology National Trauma data Bank orbital fracture risk factors trauma

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Localized-states quantum confinement induced by roughness in CdMnTe/CdTe heterostructures grown on si(111) substrates

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Journal of semiconductors 2024年第9期45卷 28-35页

作者： Leonarde N.Rodrigues Wesley F.Inoch Marcos L.F.Gomes Odilon d.d.Couto Jr. Bráulio s.Archanjo sukarno O.Ferreira Physics department Federal University of ViçosaViçosa36570-900Minas GeraisBrazil Instituto de Física Gleb Wataghin Universidade Estadual de CampinasCampinas13083-859São PauloBrazil National Institute of Metrology Quality and Technology(Inmetro) Materials Metrology Division(DIMAT)Xerém2525-020Rio de JaneiroBrazil

This work shows that despite a lattice mismatch of almost 20%, CdMnTe/CdTe/CdMnTe heterostructures grown directly on si(111) have surprisingly good optical emission properties. The investigated structures were grown by molecular beam epitaxy and characterized by scanning transmission electron microscopy, macro-and micro-photoluminescence. Low temperature macro-photoluminescence experiments indicate three emission bands which depend on the CdTe layer thickness and have different confinement characteristics. Temperature measurements reveal that the lower energy emission band (at 1.48 eV)is associated to defects and bound exciton states, while the main emission at 1.61 eV has a weak 2d character and the higher energy one at 1.71 eV has a well-defined (zero-dimensional, 0d) 0d nature. Micro-photoluminescence measurements show the existence of sharp and strongly circularly polarized (up to 40%) emission lines which can be related to the presence of Mn in the heterostructure. This result opens the possibility of producing photon sources with the typical spin control of the diluted magnetic semiconductors using the low-cost silicon technology.

关键词： CdMnTe/CdTe/CdMnTe heterostructure CdTe/CdMnTe quantum emitters quantum dot-like emission silicon(111)substrate

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does community-based health insurance affect lifestyle and timing of treatment seeking behavior?Evidence from Ethiopia

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Global Health Journal 2024年第2期8卷 83-90页

作者： Zecharias Fetene Anteneh Anagaw d.Mebratie Zemzem shigute Getnet Alemu Arjun s.Bedi Center for Health Economics University of YorkYorkUnited Kingdom school of Public Health College of Health SciencesAddis Ababa UniversityAddis AbabaEthiopia International Institute of social studies Erasmus University Rotterdamthe Haguethe Netherlands Institute of development and Policy Research Addis Ababa UniversityAddis AbabaEthiopia

Objectives This paper aims to investigate the effects of enrollment in the Ethiopian community-based health insurance(CBHI)scheme on household preventive care activities and the timing of treatment-seeking behavior for illness *** is growing concern about the financial sustainability of CBHI schemes in developing ***,few empirical studies have identified potential contributors,including ex-ante and ex-post moral *** We implement a household fixed-effect panel data regression model,drawing on three rounds of household survey data collected face to face in districts where CBHI scheme is operational and in districts where it is not operational in *** The findings show that enrolment in CBHI does not significantly influence household behaviour regarding preventive care activities such as water treatment before drinking and handwashing before ***,CBHI significantly increases delay in treatment-seeking behaviour for diseases ***,on average,we estimate about 4-6 h delay for malaria symptoms,a little above 4 h for tetanus,and 10-11 h for tuberculosis among the insured *** While there is evidence that CBHI improve the utilization of outpatient or primary care services,our study suggests that insured members may wait longer before visiting health *** delay could be partly due to moral hazard problems,as insured households,particularly those from rural areas,may consider the opportunity costs associated with visiting health facilities for minor ***,it is essential to identify the primary causes of delays in seeking medical services and implement appropriate interventions to encourage insured individuals to seek early medical attention.

关键词： Community-based health insurance Financial sustainability Preventive care Treatment-seeking behavior Household fixed effect Ethiopia

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