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Prevascularized Micro‑/Nano‑Sized Spheroid/Bead Aggregates for Vascular Tissue Engineering

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Nano-Micro Letters 2021年第11期13卷 351-374页

作者： Maedeh Rahimnejad Narges Nasrollahi Boroujeni Sepideh jahangiri Navid Rabiee Mohammad Rabiee Pooyan Makvandi Omid Akhavan Rajender S.Varma Biomedical Engineering Institute School of MedicineUniversite de MontrealMontrealCanada Research Centre Centre Hospitalier de L’Universite de Montreal(CRCHUM)MontrealCanada Department of Industrial Biotechnology National Institute of Genetics and BiotechnologyTehranIran Department of Biomedical Sciences Faculty of MedicineUniversite de MontrealMontrealCanada Department of Physics Sharif University of TechnologyP.O.Box 11155‑9161TehranIran Biomaterial Group Department of Biomedical EngineeringAmirkabir University of TechnologyTehranIran Centre for Materials Interfaces Istituto Italiano Di Tecnologiaviale Rinaldo Piaggio 3456025 PontederaPisaItaly Regional Centre of Advanced Technologies and Materials Czech Advanced Technology and Research InstitutePalacky UniversityŠlechtitelů2778371 OlomoucCzech Republic

Efficient strategies to promote microvascularization in vascular tissue engineering,a central priority in regenerative medicine,are still scarce;nano-and micro-sized aggregates and spheres or beads harboring primitive microvascular beds are promising methods in vascular tissue *** are the smallest type and in numerous blood vessels,which are distributed densely in cardiovascular *** mimic this microvascular network,specific cell components and proangiogenic factors are ***,advanced biofabrication methods in microvascular engineering,including extrusion-based and droplet-based bioprinting,Kenzan,and biogripper approaches,are deliberated with emphasis on the newest works in prevascular nano-and micro-sized aggregates and microspheres/microbeads.

关键词： Vascular tissue engineering Nano-/micro-sized aggregates Microspheres

Modelling and reviewing the reliability and multi-objective optimization of wind-turbine system and photovoltaic panel with intelligent algorithms

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Clean Energy 2021年第4期5卷 713-730页

作者： Reza Alayi Mehdi jahangiri John William Grimaldo Guerrero Ravil Akhmadeev Rustem Adamovich Shichiyakh Sara Abbasi Zanghaneh Department of Mechanics Germi BranchIslamic Azad UniversityGermiIran Department of Mechanical Engineering Shahrekord BranchIslamic Azad UniversityShahrekordIran Departamento de Energía Universidad de la CostaBarranquillaColombia Plekhanov Russian University of Economics Stremyanny lane36Moscow117997Russian Federation Department of Management Candidate of Economic SciencesKuban State Agrarian University named after I.T.TrubilinKrasnodarRussian Federation Department of Energy Engineering Energy Institute of Higher EducationSavehIran

One of the options for non-dependence on fossil fuels is the use of renewable energy,which has not grown significantly due to the variable nature of this type of *** combined use of wind and solar energy as energy sources can be a good solution to the problem of variable energy ***,the purpose of this research is to model a combination of the wind-turbine system and photovoltaic cell,which is needed to investigate their ability to supply electrical *** determine this important power production,real data of solar-radiation intensity and wind are used and,in modelling photovoltaic cells,the effects of ambient temperature are also *** order to generalize the studied system in all dimensions,different scenarios have been *** to the amount of electrical power generated,during the evaluation of these scenarios,two economic parameters,namely the selected scenario of a wind/solar system with diesel-generator support,was determined.

关键词： reliability wind turbine photovoltaic cell intelligent algorithm economic analysis

Fatigue properties of temperature gradient transient liquid phase diffusion bonded Al7075-T6 alloy

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Transactions of Nonferrous Metals Society of China 2015年第4期25卷 1073-1079页

作者： Seyyed Salman Seyyed AFGHAHI Aliakbar EKRAMI Saeed FARAHANY Amirreza jahangiri Department of Engineering Faculty of Materials Science and Engineering Imam Hossein UniversityTehran 15816-18711 Iran Department of Materials Science and Engineering Sharif University of TechnologyTehran 11365-9466 Iran Department of Materials Manufacturing and Industrial Engineering Faculty of Mechanical EngineeringUniversity Teknologi MalaysiaJohor 81310 Malaysia

Fatigue properties of Al7075-T6 alloy joined by temperature gradient transient liquid phase(TGTLP) diffusion bonding using liquid gallium interlayer was investigated. The fatigue specimen was jointed at 460 °C under 10 MPa pressure for 10 min. The TLP bonded samples were homogenized at 465 °C for 2 h and then T6-heat treated. The fatigue life of Al7075-T6 alloy was determined as 107 cycles under 90 MPa while the fatigue life of TLP bonded sample under this stress amplitude was 1.2×106 cycles, which is about 10% of the total Al7075 alloy fatigue life. The fatigue fracture surfaces of Al7075 sample and TGTLP bonded sample were studied using scanning electron microscope to characterize the nucleation sites and crack growth stages in both samples.

关键词： Al7075 alloy fatigue transient liquid phase gallium

Comparison of microstructural stability of IN939 superalloy with two different manufacturing routes during long-time aging

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Transactions of Nonferrous Metals Society of China 2014年第6期24卷 1717-1729页

作者： M.R.jahangiri H.ARABI S.M.A.BOUTORABI Metallurgy Department Niroo Research Institute School of Metallurgy and Materials Engineering Iran University of Science and Technology

Microstructural stability of IN939 superalloy with two different manufacturing routes was investigated during long-term aging at elevated temperatures by light optical microscope（OM） and scanning electron microscope（SEM） equipped with an EDS *** results show mat the coarsening behavior of γ＇ particles is primarily impacted by the initial heat treatment conditions,and the effect of the prior manufacturing route（casting or hot forming） is found to be insignificant,if any,on the γ＇ particles coarsening *** the temperature range of 790-827 ℃,IN939 cast/wrought-HT2 alloys have more microstructural stability,while in the temperature range of 827-910 ℃,the initial heat treatment marked as HT1 provides more stable microstructure for the cast or wrought IN939 superalloy.

关键词： nickel-based superalloy IN939 superalloy long-term coarsening manufacturing route heat treatment γ particles carbides

Inner speech, secondary planner in Tower of London task in natural old age

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World Journal of Neuroscience 2012年第1期2卷 47-56页

作者： Maryam Atabati Nader jahangiri Naghmeh Mokhber Department of Linguistics Ferdowsi University of Mashhad Mashhad Iran Ferdowsi University of Mashhad Mashhad Iran Psychiatry and Behavioral Sciences Research Center of Mashhad University of Medical Sciences Mashhad Iran

In this study the mechanical version of the three-disk Tower of London task with changes in the movements was conducted by fifteen elderly participants with concurrent articulatory suppression. Also, this executive task was conducted without verbal secondary task and the results of these two states were com- pared with each other. From this comparison, got evidences based on inner speech role in more complicated Tower of London tasks, although in general, the results suggest a more outstanding role of inner scribe in spatial planning in this executive task. Then inner speech and inner scribe roles have been described in Tower of London task applying “Baddeley and Logie” working memory model.

关键词： Inner Speech Tower of London Task Phonological Loop Visuospatial Sketchpad Articulatory Suppression

The First Photometric Study of AH Mic Contact Binary System

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Research in Astronomy and Astrophysics 2022年第5期22卷 182-189页

作者： Atila Poro M.G.Blackford S.Ranjbar Salehian E.jahangiri M.Samiei Dastjerdi M.Gozarandi R.Karimi T.Madayen E.Bakhshi F.Hedayati Astronomy Department of the Raderon Lab. BCBumabyCanada Variable Stars South(VSS) Congarinni ObservatoryCongarinniNSW2447Australia Binary Systems of South and North(BSN)Project Contact Systems DepartmentIran Department of Physics Kharazmi UniversityTehranIran Astronomy and Astrophysics Department University of TorontoTorontoCanada Department of Physics Institute for Advanced Studies in Basic Sciences(IASBS)ZanjanIran

The first multi-color light curve analysis of the AH Mic binary system is *** system has very few past observations from the southern *** extracted the minima times from the light curves based on the Markov Chain Monte Carlo(MCMC)approach and obtained a new *** provide modern photometric light curve solutions,we used the Physics of Eclipsing Binaries(PHOEBE)software package and the MCMC *** curve solutions yielded a system temperature ratio of 0.950,and we assumed a cold starspot for the hotter star based on the O’Connell *** analysis reveals that AH Mic is a W-subtype W UMa contact system with a fill-out factor of 21.3%and a mass ratio of *** absolute physical parameters of the components are estimated by using the Gaia Early Data Release 3(EDR3)parallax method to be M_(h)(M_(⊙))=0.702(26),M_(c)(M_(⊙))=1.629(104),R_(h)(R_(⊙))=0.852(21),R_(c)(R_(⊙))=1.240(28),L_(h)(L_(⊙))=0.618(3)and L_(c)(L_(⊙))=1.067(7).The orbital angular momentum of the AH Mic binary system was found to be 51.866(35).The components’positions of this system are plotted in the Hertzsprung-Russell diagram.

关键词： photometry-binary stars-individual (AH Mic)

Energy Harvesting From Sea Waves With Consideration of Airy and JONSWAP Theory and Optimization of Energy Harvester Parameters

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Journal of Marine Science and Application 2015年第4期14卷 440-449页

作者： Hadi Mirab Reza Fathi Vahid jahangiri Mir Mohammad Ettefagh Reza Hassannejad Faculty of Mechanical Engineering University of Tabriz *** Tabriz Iran

One of the new methods for powering low-power electronic devices at sea is a wave energy harvesting system. In this method, piezoelectric material is employed to convert the mechanical energy of sea waves into electrical energy. The advantage of this method is based on avoiding a battery charging system. Studies have been done on energy harvesting from sea waves, however, considering energy harvesting with random JONSWAP wave theory, then determining the optimum values of energy harvested is new. This paper does that by implementing the JONSWAP wave model, calculating produced power, and realistically showing that output power is decreased in comparison with the more simple Airy wave model. In addition, parameters of the energy harvester system are optimized using a simulated annealing algorithm, yielding increased produced power.

关键词： energy harvesting sea waves JONSWAP Airy wave model piezoelectric material beam vibration simulated annealing algorithm

Geochemistry and Emplacement of Post-collisional Shoshonitic Dyke Swarms, NW of Iran

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Acta Geologica Sinica(English Edition) 2016年第S1期90卷 99-页

作者： A.jahangiri M.Fadaeian A.Songjian Department of Earth Sciences University of Tabriz Department of Geology Payame Noor University State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Science

About 300 mafic dykes are intruded Eocene volcanic and pyroclastic rocks,north east of Meshkinshahr city in the NW of *** of dyke swarms display NNE-SSE *** composition varies from basalt to tephrite and

关键词： Geochemistry and Emplacement of Post-collisional Shoshonitic Dyke Swarms NW of Iran

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雪松之家--2019公共住宅类大奖

设计新潮 2020年第1期 54-61页

作者：穆晓庆无(图) Majid jahangiri(摄影) 不详 NextOfficee-Alireza Taghaboni建筑事务所

“以创新的解题手法调合了德黑兰城市公共和私人空间矛盾的现状,并以恰当的设计策略满足了民众对于居住空间私密性的需求。”--WAF在城市入口过度激增的德黑兰,城市基础设施配套不足、用地紧张、住房短缺等问题制约着城市的发展。德黑... 详细信息

“以创新的解题手法调合了德黑兰城市公共和私人空间矛盾的现状,并以恰当的设计策略满足了民众对于居住空间私密性的需求。”--WAF在城市入口过度激增的德黑兰,城市基础设施配套不足、用地紧张、住房短缺等问题制约着城市的发展。德黑兰特殊的社会和政治环境,使得私人空间与公共空间的界限不是很明确,导致民众居住空间的私密性无法保证。基于这些问题,如何在相对拥堵的城市地块中创宜居的生活空间,是建筑师挑战所在。

关键词：私人空间公共住宅私密性城市入口居住空间住房短缺公共空间德黑兰