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A review on epidemiology and ecology of West Nile fever: An emerging arboviral disease

Journal of Acute Disease 2020年第3期9卷 93-99页

作者： Rouhullah dehghani Hamid Kassiri Niusha Kasiri mousa dehghani Social Determinants of Health(SDH)Research Center and Department of Environment HealthKashan University of Medical SciencesKashanIran Department of Medical Entomology School of HealthAhvaz Jundishapur University of Medical SciencesAhvazIran School of Medicine Ahvaz Jundishapur University of Medical SciencesAhvazIran Department of Environmental Science Faculty of Natural ResourcesIsfahan University of TechnologyIsfahanIran

West Nile virus (WNV) is found in 26 provinces of Iran in humans, horses, and birds. Due to lack of vaccines, the only method to reduce the risk of the disease in communities is to increase people''s awareness. Lack of killing and overhunting of animals does not alter the infected-blood transmission from animals to humans by mosquito bites, but can reduce disease transmission risks including the transmission of West Nile fever (WNF) to humans. WNV is an enveloped Flavivirus that in nature has an enzootic cycle between mosquitoes and birds. The virus has occasional epizootic spillover causing disease in humans and horses. WNV-transmitting mosquitoes are widespread around the world, and the geographical range of transmission and the disease has increased over the past seven decades. Most human infections with WNV are asymptomatic, but severe neurological disease may develop resulting in long-term complications or death. Given the increasing trend of reported human WNF cases, it is necessary to implement surveillance programs and increase awareness of people and health staff about the function of biological factors including carnivores in the hunting of infected animals and collecting their carcass from nature. Hunting and killing of birds and dogs living near humans increase both the risk of deviation of blood-feeding of the zoophilic mosquitoes to humans and the outbreak of the disease.

关键词： Epidemiology West Nile Fever Arbovirus Iran

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Global distribution of human chikungunya arbovirus infection: A review

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Journal of Acute Disease 2020年第4期9卷 145-151页

作者： Rouhullah dehghani Hamid Kassiri Rozhin Kasiri mousa dehghani Maral Kasiri Social Determinants of Health Research Center and Department of Environment HealthKashan University of Medical SciencesKashanIran Department of Medical Entomology School of HealthAhvaz Jundishapur University of Medical SciencesAhvazIran School of Medicine Ahvaz Jundishapur University of Medical SciencesAhvazIran Department of Environmental Science Faculty of Natural ResourcesIsfahan University of TechnologyIsfahanIran Department of Biomedical Engineering University of Southern CaliforniaLos AngelesCaliforniaUnited States of America

The five main arbovirus families that cause diseases in humans and other animals are Bunya viridae,Togaviridae,Flaviviridae,Reoviridae,and Rhab *** arbovirus(Togaviridae:Alphavirus),an arbovirus transmitted byAedes spp.,is a well-known global health *** has been recognized in more than 60 countries in Asia,Africa,Europe,and the ***,the eastern neighborhood of Iran,is one of the endemic foci of this *** the largest province of Iran,Sistan-Baluchestan has always been threatened by infectious diseases from abroad due to its geographical location and neighborhood with Afghanistan and *** diseases are more likely to occur in the eastern borders of Iran arising from(1)lack or limited jobs due to deprivation of the area,the harsh weather conditions,unbearable conditions,traditional society,and lack of industry development;(2)Lack or limited facilities due to the distance from the center of the country and high percentage of illiteracy or low literacy,and traffic to neighboring countries to trade goods and get a ***,health authorities should pay more attention to trafficking of illegal aliens,traveling of people to high-risk countries,smuggling of livestock,and strengthening of quarantine posts across borders,especially in the eastern borders of *** first case of chikungunya disease was confirmed in Sistan-Baluchestan province in 2019,where most of the cases have been *** findings of the present study provide evidence of chikungunya virus in Iran and emphasize the urgency to increase the preventive standards and surveillance system.

关键词： Chikungunya Epidemiology Arbovirus Control Mosquito Aedes Geographical distribution Iran

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POLYROTAXANE WITH π-CONJUGATED PORPHYRIN AND POLYAZOMETHINE SYSTEMS PREPARED FROM A TYPE OF PORPHYRIN-DIALDEHYDE AND COMPLEX OF β-CYCLODEXTRIN WITH 1,4-PHENYLENEDIAMINE

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Chinese Journal of Polymer Science 2013年第1期31卷 139-147页

作者： Raziyeh Akbarzadeh Hossein dehghani Department of Inorganic Chemistry Faculty of ChemistryUniversity of Kashan

The synthesis of 5,15-bis[4-（methoxycarbonyl）phenyl]-10,20-diphenylporphyrin （2） and its reduction to 5,15- bis[4-（hydroxymethyl）phenyl]-10,20-diphenylporphyrin （3）, and so its oxidation to provide 5,15-bis（4-formylphenyl）-10,20- diphenylporphyrin （4） are reported. The copolymer possessing β-cyclodextrin （fl-CD）, n-conjugated porphyrin and polyazomethine systems was synthesized by the polycondensation of porphyrin-dialdehyde monomer （4） and ,β- cyclodextrin/1,4-phenylenediamine complex （5）. The monomers and the copolymer were characterized by UV-Vis, ^1H-NMR and IR spectra. Furthermore, ^1H-NMR and FT-IR spectra confirmed locating the aromatic ring of 1,4-phenylenediamine molecule in the center of β-cyclodextrin cavity.

关键词： Polymer Porphyrin 1,4-Phenylenediamine Imine Cyclodextrin.

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Microstructural Evolution of NiTi47.7Cu6.3 Alloy during Hot Deformation

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Journal of Materials Science & Technology 2011年第10期27卷 951-960页

作者： Amir Etaati Kamran dehghani Mining and Metallurgical Eng.Dept. Amirkabir Univ.Tech.

In the present work, the hot workability and microstructural evolution of ***6.3 （at.%） shape memory alloy were investigated by using wedge-rolling test. The wedge specimens were subjected to hot rolling at the temperatures of 700-1000℃. The microstructural evolutions at the strains of 0.05, 0.15, 0.2, 0.25 and 0.3 were then characterized by optical microscopy and scanning electron microscopy （SEM） as well as energy dispersive spectrometry （EDS） technique. Depending on the deformation temperature and strain, the dynamic recrystallization （DRX） could occur, leading to the refining of the microstructure. At low temperatures of 700 and 800℃ there was no sign of DRX at all studied strains. At these temperatures, the formed fine needle-like precipitates pinned the grain boundaries and prevented them from bulging/migration. By contrast, at higher temperatures of 900 and 1000℃, the DRX took place at the critical strains lower than 0.25 and 0.15, respectively. However, at higher temperatures, strain-induced-boundary-migration （SIBM） mechanism resulted in the formation of DRX grains.

关键词： Deformation Wedge rolling test Dynamic recrystallization Ni-rich Nitinol NiTiCu

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Hot Ductility of Severe Plastic Deformed AA6061 Aluminum Alloy

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Acta Metallurgica Sinica(English Letters) 2015年第3期28卷 322-330页

作者： Ali Akbar Khamei Kamran dehghani Mining and Metallurgical Engineering Department Amirkabir University of Technology

The hot ductility of 6061 aluminum alloy,which was subjected to two different severe plastic deformations（SPD）,was studied at different temperatures and strain *** tensile tests were carried out at the temperature range of 300-500 ℃ and at the strain rates of 0.0005-0.01 s^（-1）.The microstructure evolution was characterized using optical microscopy,transmission electron microscopy and X-ray diffraction *** influences of the microstructure after SPD,thermomechanical parameters（temperature and strain rate） and specimen size on the hot formability of this alloy were then *** results show that a decrease in grains/subgrains exhibited significant effect on the hot ductility of SPDed *** constitutive equations were then developed to model the hot formability of the studied *** developed model can be represented by Zener-Hollomon parameter in a hyperbolic sinusoidal equation *** the changes of elongation to failure and Zener-Hollomon parameter indicate that the hot ductility of the alloy is more sensitive to the temperature rather than to the strain *** uniform elongation is independent of the specimen size,but the postnecking elongation increases dramatically as the ratio of l/A^（1/2） decreases.

关键词： Al-Mg-Si alloy Deformation behavior Equal channel angular pressing(ECAP) Rolling Hot tensile deformation

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Effect of Hot Working on Secondary Phase Formation in 2205 Duplex Stainless Steel

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Journal of Materials Science & Technology 2010年第9期26卷 851-857页

作者： A.Momeni K.dehghani Department of Mining and Metallurgy Amir Kabir University of Technology

In this research,aging treatments at temperatures of 800 and 900°C for different aging time of 5-60 min were conducted on solution treated as well as hot worked samples of 2205 dual phase stainless *** effect of aging treatment on precipitation of intermetallic phases was investigated in undeformed specimens and those subjected to hot deformation with different strain rates of 0.001-1 *** was found that σ precipitation increased by hot *** was also concluded that the volume fraction of phase increased with deformation temperature and decreased with strain *** precipitation of intermetallic phases（i.e.σ and χ） was analyzed by an Avrami-type kinetics equation of %（σ＋χ）=A（1-exp（-ktn）） and the values of n and ln k were estimated for different thermomechanical *** values of n were assessed to increase from 0.4 to 1 with strain rate in the studied ***,It was also understood that ln k decreased with strain *** observations by means of optical microscopy and scanning electron microscopy showed that σ particles mostly nucleated at the ferrite-austenite *** no sign of χ-phase could be *** fortified the idea of certain literature that χ-phase always forms at early stages of aging and consumes through the precipitation of σ.

关键词： Duplex stainless steel Aging Hot working σ phase

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Investigating a potential reservoir landslide and suggesting its treatment using limit-equilibrium and numerical methods

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Journal of Mountain Science 2017年第3期14卷 432-441页

作者： Nima BABANOURI Hesam dehghani Department of Mining Engineering Hamedan University of Technology***HamedanIran

A reservoir landslide not only reduces the water storage capacity, but also causes extensive damages to the dam body, power/water transmission lines, roads, and other infrastructures. The Latian Dam, located 35 km north east of Tehran （Iran）, is one of the cases which has encountered serious problems with instability of its rock abutments. This paper addresses the stability analysis of the right abutment of the Latian Dam using limit equilibrium and numerical methods. Geomechanical characteristics of the rock abutment were first estimated based on engineering classification of the rock mass. Different search methods were examined for locating the critical circular/non-circular slip surface in conjunction with the general limit equilibrium method. The effect of variabi]ity of rock mass properties, water table, and earthquake load on the factor of safety （FS） and probability of failure （PF） was studied. In the event of rapid drawdown in the reservoir, the limit equilibrium analysis calculated FS=1.067 and PF=21.1%, and the numerical analysis returned FS=1.01. The results of the analyses suggest that the right abutment of the Latian Dam is prone to slide and needs treatment. Investigations demonstrated that a slope reduction by 15° at the upper part of the abutment would meet stability conditions even in the worst-case scenario （FS=1.297 and PF=2.07%）.

关键词： Reservoir landslide Limit equilibrium Numerical modeling Reliability Slope stabilization

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Migration Algorithm:A New Human-BasedMetaheuristic Approach for Solving Optimization Problems

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Computer Modeling in Engineering & Sciences 2023年第11期137卷 1695-1730页

作者： Pavel Trojovsky Mohammad dehghani Department of Mathematics Faculty of ScienceUniversity of Hradec KrálovéHradec Králové50003Czech Republic

This paper introduces a newmetaheuristic algorithmcalledMigration Algorithm(MA),which is helpful in solving optimization *** fundamental inspiration of MA is the process of human migration,which aims to improve job,educational,economic,and living conditions,and so *** of the proposed MAis presented in two phases to empower the proposed approach in exploration and exploitation during the search *** the exploration phase,the algorithm population is updated based on the simulation of choosing the migration destination among the available *** the exploitation phase,the algorithm population is updated based on the efforts of individuals in the migration destination to adapt to the new environment and improve their ***’s performance is evaluated on fifty-two standard benchmark functions consisting of unimodal and multimodal types and the CEC 2017 test *** addition,MA’s results are compared with the performance of twelve well-known metaheuristic *** optimization results show the proposed MA approach’s high ability to balance exploration and exploitation to achieve suitable solutions for optimization *** analysis and comparison of the simulation results show that MA has provided superior performance against competitor algorithms in most benchmark ***,the implementation of MA on four engineering design problems indicates the effective capability of the proposed approach in handling optimization tasks in real-world applications.

关键词： Optimization metaheuristic migration human-based algorithm exploration exploitation

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Microstructural evolution and mechanical properties of nanostructured Cu-Al-Ni shape memory alloys

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International Journal of Minerals,Metallurgy and Materials 2012年第4期19卷 333-338页

作者： M. Izadinia K. dehghani Mining and Metallurgical Engineering Department Amirkabir University of Technology

The melt spinning technique, with an applied cooling rate of about 106 K/s, was used to produce a nanostructured Cu＋13.2Al＋ 5.1Ni （in wt%） shape memory alloy. The properties of nanostructured ribbons were then compared with those of conventional coarse struc- ture. The microstructural evolution was characterized using scanning electron microscopy （SEM）, atomic force microscopy （AFM） and X-ray diffraction （XRD） techniques. Microhardness measurements indicate a two-fold increase in hardness because of the produced nanos- lructure. Comparing to its coarse structure, the nanostructured Cu-A1-Ni shape memory alloy exhibited the enhanced mechanical properties including a ductility of 6.5% and a pronounced plateau in the stress-strain curve.

关键词： copper allosy shape memory effect melt spinning mechanical properties microstructural evolution

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Spatiotemporal shoreline change in Boushehr Province coasts,Iran

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Journal of Oceanology and Limnology 2020年第3期38卷 707-721页

作者： Saeed ZEINALI Nasser TALEBBEYDOKHTI Maryam dehghani Department of Civil&Environmental Engineering School of EngineeringShiraz UniversityShiraz 71348-51156Iran

Since coastal areas have highly dynamic nature and are one of the most beneficial regions of civilizations,it is of great significance to understand their characteristics and *** in shorelines in the form of accretion and erosion can leave devastating effects on businesses and cities located along the *** this study,we statistically calculated the tendency of shoreline changes by processing and analyzing historical satellite images of Boushehr Province,*** show that these shores have experienced both sedimentation and erosion in the past 30 *** shoreline movement presents more than 350 m of erosion and 650 m of accretion,which are corresponded to change rates of almost 12 and 22 m/a,*** of shoreline changes are calculated from regression methods including end point rate,linear regression rate,weighted linear regression,and least median of *** best-performed method is applied to predict the shoreline position in 2050 and *** locations of excessive changes are identified for the predicted shorelines,which should be dealt with properly.

关键词： digital shoreline analysis system satellite image accretion and erosion linear regression sediment Boushehr Province

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