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Calculation of time-varying equivalent inductance and resistance of helical flux compression generators using the 2D filamentary method and dynamic matrix concept in the frequency domain

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Chinese Physics B 2010年第1期19卷 557-562页

作者： M.h.Khanzade Y.alinejad-Beromi A.Shoulaie Iran University of Science & Technology Semnan University

In this paper we present an approach to calculate the time-varying equivalent inductance and resistance of helical flux compression generators accurately. This approach is based on the 2D filamentary method and uses the dynamic matrix concept. By using this method, it is possible to consider both the effects of the armature presence and frequency on the inductance and resistance of the hFCGs. The latter effect has not been discussed in previous open literature. The validation of the presented method has been verified by measurement results.

关键词： helical flux compression generators liner seed current

Extraordinary adsorption of acidic fuchsine and malachite green onto cheap nano-adsorbent derived from eggshell

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Chinese Journal of Chemical Engineering 2020年第6期28卷 1591-1602页

作者： Atefeh Moosavi Ali Akbar Amooey Ali alinejad mir Mojtaba hedayati Marzbali Faculty of Chemistry University of MazandaranBabolsarIran Department of Chemical Engineering University of MazandaranBabolsarIran Chemical&Environmental Engineering School of EngineeringRMIT UniversityMelbourneVictoria 3000Australia

Removal of dyestuffs such as Acidic Fuchsine(AF)and Malachite Green(MG)being present in many forms in industries is vital to protect water reservoirs from their catastrophic effects on the *** study attempts to effectively eliminate these dyes using a low-cost and eco-friendly ***,as a biocompatible by-product,was initially characterized,then some modifications were conducted,and its morphology and chemical structure were then examined through(Atomic force microscopy)AFM,(Fourier-Transform Infrared Spectroscopy)FTIR,(Energy-Dispersive X-ray Spectroscopy)EDS and(Brunauer–Emmett–Teller)BET *** revealed that the modifications on raw material gave rise to a natural nano-adsorbent presenting porous medium appropriate for targeted adsorbate molecules with the average particle size and average pore diameter of 54 and^2 nm,*** groups on the adsorbent surface were also of importance to assist the adsorption of AF and *** effect of contact time,adsorbent dose,solution p h and initial concentration was ***-second order model accurately correlated the experimental kinetic data for both ***,the participation of intra-particle diffusion along with film diffusion in controlling the process was *** isotherm model fitted very well to the equilibrium data for both dyes and maximum monolayer adsorption capacity of AF and MG was accordingly calculated to be 5000 and 3333.33 mg·g-1 *** inherent characteristics of eggshell make it a potential material to remove contaminants from wastewater in future applications.

关键词： Egg shell Acidic Fuchsine Malachite Green Ultrahigh adsorption

Seismic hazard assessment of Tehran,Iran with emphasis on near-fault rupture directivity effects

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Earthquake Science 2018年第1期31卷 1-11页

作者： Ehsan Bazarchi Reza Saberi Majid alinejad Department of Civil and Environmental Engineering University of TabrizTabrizIran Nuclear Science and Technology Research Institute(NSTRI) TehranP.O.Box 113658486Iran Shakhes Pajouh Engineering Institute of Natural hazards IsfahanP.O.Box 81655-1537Iran

Many destructive earthquakes happened in Tehran, Iran in the last centuries. The existence of active faults like the North Tehran is the main cause of seismicity in this city. According to past investigations, it is estimated that in the scenario of activation of the North Tehran fault, many structures in Tehran will collapse. Therefore, it is necessary to incorporate the near field rupture directivity effects of this fault into the seismic hazard assessment of important sites in Tehran. In this study, using calculations coded in MATLAB, Probabilistic Seismic hazard Analysis （PShA） is conducted for an important site in Tehran. Following that, deaggregation technique is performed on PShA and the contribution of seis- mic scenarios to hazard is obtained in the range of distance and magnitude. After identifying the North Tehran fault as the most hazardous source affecting the site in 10000-year return period, rupture directivity effects of this fault is incorporated into the seismic hazard assessment using Somerville et al. （1997） model with broadband approach and Shahi and Baker （2011） model with narrowband approach. The results show that the narrowband approach caused a 27% increase in the peak of response spectrum in 10000-year return period compared with the conventional PShA. Therefore, it is necessary to incorporate the near fault rupture directivity effects into the higher levels of seismic hazard assessment attributed to important sites.

关键词： Probabilistic seismic hazard analysis North Tehran fault rupture directivity effect deaggregation controlling earthquake

Dynamic stress concentration in an infinitely long cylindrical cavity due to a point spherical source embedded within a fluid-saturated poroelastic formation of infinite extent

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 139-156页

作者： h.hOSSEINI O.BALILAShAKI Department of Mechanical Engineering Faculty of EngineeringGolestan University

The effects of a harmonically exciting monopole source on an infinitely long cylindrical cavity embedded entirely within a fluid-saturated poroelastic formation of infinite extent are examined theoretically. It is assumed that the source is located outside the cavity at a specified distance from the borehole axis. The magnitudes of the hoop and radial stresses beside the pore pressures exerted on the interface and inside the porous medium surrounding the borehole are calculated and discussed. Biot's poroelastic modeling along with three types of boundary conditions for the cylindrical interface including the ideal fluid, empty borehole, and rigid inclusion with a hard boundary is employed for the analysis. Utilizing a proper translational addition theorem for expressing the incident spherical wave in terms of cylindrical wave expansions, the proposed boundary conditions at the interface are satisfied. Stresses are formulated by means of wave potential functions in a three-dimensional(3D) manner. The effects of the frequency and the radial distance between the source and borehole on the induced stresses are examined for the first cylindrical modes over frequency spectra. Two permeability conditions for the interface and three types of soils for the porous formation are considered throughout the analysis. To give an overall outline of the study, a numerical example is presented. The results clearly indicate that the distance is a key parameter and has considerable effects on the induced stress values. In addition, the interface permeability condition and soil characteristics play an important role in determining the dynamic response of the borehole. Finally,the obtained results are compared with the relevant analyses existing in the literature for some limit cases, and good agreement is achieved.

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Neuroinflammation as a therapeutic target in huntington's disease

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Neural Regeneration Research 2025年第3期20卷 817-818页

作者： Andrea Kwakowsky Thulani h.Palpagama Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CentreUniversity of GalwayGalwayIreland

In 1872, George huntington presented his essay “On Chorea” to the Meigs and Mason Academy of Medicine and, in doing so, detailed a disease that would later bear his name. huntington's disease(hD) is a genetic, neurodegenerative disease that manifests as the loss of motor control,cognitive impairment,and mood and psychiatric changes in paents.

关键词： huntington inflammation Medicine

Glial response in the midcingulate cortex in huntington’s disease

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Neural Regeneration Research 2025年第1期20卷 207-208页

作者： Thulani h.Palpagama Andrea Kwakowsky Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CenterUniversity of GalwayGalwayIreland

huntington’s disease(hD)is a genetic disease characterized by the progressive degeneration of the striatum and *** can present with a variety of symptoms that can broadly be classified into motor symptoms,inclusive of choreatic movements and rigidity,mood and psychiatric symptoms,such as depression and apathy,and cognitive symptoms,such as cognitive *** causal mutation underlying hD results from an expansion of a CAG repeat sequence on the IT15 gene,resulting in the formation and accumulation of a mutant huntingtin protein.

关键词： huntington degeneration cortex

Navigating micro- and nano-motors/swimmers with machine learning: Challenges and future directions

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ChemPhysMater 2024年第3期3卷 273-283页

作者： Jueyi Xue hamid alinejad-Rokny Kang Liang School of Chemical Engineering and Australian Centre for NanoMedicine UNSW SydneySydneyNSW 2052Australia UNSW BioMedical Machine Learning Laboratory The Graduate School of Biomedical EngineeringUNSW SydneyRandwickNSW 2052Australia The Graduate School of Biomedical Engineering UNSW SydneyRandwickNSW 2052Australia

Micro-/nano-motors(MNMs)or swimmers are minuscule machines that can convert various forms of energy,such as chemical,electrical,or magnetic energy,into *** devices have attracted significant attention owing to their potential application in a wide range of fields such as drug delivery,sensing,and ***,owing to their diverse shapes,sizes,and structural/chemical compositions,the development of MNMs faces several challenges,such as understanding their structure-function relationships,which is crucial for achieving precise control over their motion within complex *** recent years,machine learning techniques have shown promise in addressing these challenges and improving the performance of *** learning techniques can analyze large amounts of data,learn from patterns,and make predictions,thereby enabling MNMs to navigate complex environments,avoid obstacles,and perform tasks with higher efficiency and *** review introduces the current state-of-the-art machine learning techniques in MNM research,with a particular focus on employing machine learning to understand and manipulate the navigation and locomotion of ***,we discuss the challenges and opportunities in this field and suggest future research directions.

关键词： Micro/nano-motors Active matter Machine learning Reinforcement learning

Synthesis of Single-Walled Carbon Nanotubes by Induction Thermal Plasma

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Nano Research 2009年第10期2卷 800-817页

作者： Keun Su Kim Ala Moradian Javad Mostaghimi Yasaman alinejad Ali Shahverdi Benoit Simard Gervais Soucy Department of Chemical Engineering Universitéde SherbrookeJ1K 2R1Canada Department of Mechanical and Industrial Engineering University of TorontoM5S 3G8Canada Steacie Institute for Molecular Sciences National Research CouncilK1A 0R6Canada

The production of high quality single-walled carbon nanotubes(SWCNTs)on a bulk scale has been an issue of considerable ***,it has been demonstrated that high quality SWCNTs can be continuously synthesized on large scale by using induction thermal plasma *** this process,the high energy density of the thermal plasma is employed to generate dense vapor-phase precursors for the synthesis of *** the current reactor system,a carbon soot product which contains approximately 40 wt%of SWCNTs can be continuously synthesized at the high production rate of~100 g/*** this article,our recent research efforts to achieve major advances in this technology are ***,the processing parameters involved are examined systematically in order to evaluate their individual inuences on the SWCNT synthesis.Based on these results,the appropriate operating conditions of the induction thermal plasma process for an effective synthesis of SWCNTs are discussed.A characterization study has also been performed on the SWCNTs produced under the optimum processing ***,a mathematical model of the process currently under development is *** model will help us to better understand the synthesis of SWCNTs in the induction plasma process.

关键词： Single-walled carbon nanotubes(SWCNTs) large-scale continuous synthesis radio frequency(RF)induction thermal plasma optimization numerical modeling

Does mesenchymal stem cell’s secretome affect spinal sensory circuits?Implication for pain therapies

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Neural Regeneration Research 2025年第1期20卷 181-183页

作者： Francesco Ferrini Esri h.Juárez Adalberto Merighi Department of Veterinary Sciences University of TurinGrugliascoTOItaly Department of Psychiatry and Neuroscience UniversitéLavalQuébec CityQCCanada

Mesenchymal stem cells(MSCs)are multipotent adult stem cells of mesodermal origin that can be isolated from various tissues,including bone marrow,tooth pulp,adipose tissue,and umbilical *** have gained significant attention in regenerative medicine due to their ability to modulate the immune system and favor tissue *** enrich the medium in which they are cultivated with a broad range of bioactive molecules,including growth factors,cytokines,chemokines,enzymes,nucleic acids,and extracellular vesicles that collectively compose the MSC *** increasing number of pre-clinical studies suggest that delivering in vivo an MSC-conditioned medium(i.e.,the medium collected from MSC cultures after at least 3 days of exposure)exerts neuroprotective and anti-inflammatory effects in a variety of neurological conditions.

关键词： protective clinical collective