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Nano materials Science 2020年第1期2卷 83-95页

作者： reza Gholizadeh Daisuke Terada Akinobu Shibata Nobuhiro Tsuji Department of materials Science and Engineering Kyoto UniversityYoshida HonmachiSakyo-kuKyoto606-8501Japan ESISm(Elements Strategy Initiative for Structural materials) Kyoto UniversityYoshida HonmachiSakyo-kuKyoto606-8501Japan Department of Advanced materials Science and Engineering Chiba Institute of TechnologyTsudanumaNarashino275-0016Japan

Single-phase bcc-ferrite in an interstitial free(IF)steel was deformed to different strains in a wide range from low to high strains(ε=1–7)by torsion under different Zener-Hollomon(Z)*** specimens were rapidly quenched after the torsion to preserve microstructures formed under different deformation *** results showed that during high-Z(low-temperature)deformation,grains were subdivided by geometrically necessary boundaries(GNBs)via the grain subdivision *** to high strains(ε>5)led to the ultrafine lamellar structures(with grain sizesm)mainly composed of GNBs having high misorientation *** Z with increasing temperature and/or decreasing strain rate accelerated thermally activated processes,such as dynamic recovery and boundary *** the ultrafine lamella formed under the high-Z condition,a variety of microstructures having equiaxed morphologies with fine to coarse grain sizes(>1μm)were realized with decreasing *** significance of the grain subdivision and the thermally activated phenomena on the formation of various microstructures under different deformation conditions is discussed.

关键词： Severe plastic deformation Grain subdivision Ultrafine grains Zener-Hollomon parameter Boundary migration Electron backscattering diffraction(EBSD)

Assessing Lateral Continuity within the Yammama Reservoir in the Foroozan Oilfield, Offshore Iran: An Integrated Study

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Acta Geologica Sinica(English Edition) 2018年第6期92卷 2405-2415页

作者： Payam HASSANZADEH Ahmad reza RABBANI Ardeshir HEZARKHANI Saeed KHAJOOIE Department of Petroleum Engineering Amirkabir University of Technology Department of mining and metallurgy Engineering Amirkabir University of Technology Department of Reservoir Engineering Exploration Directorate of National Iranian Oil Company (NIOC-EXP)

Located in Iranian sector of the Persian Gulf, Foroozan Oilfield has been producing hydrocarbons via seven different reservoirs since the 1970 s. However, understanding fluid interactions and horizontal continuity within each reservoir has proved complicated in this field. This study aims to determine the degree of intra-reservoir compartmentalization using gas geochemistry, light hydrocarbon components, and petroleum bulk properties, comparing the results with those obtained from reservoir engineering indicators. For this purpose, a total of 11 samples of oil and associated gas taken from different producing wells in from the Yammama Reservoir were selected. Clear distinctions, in terms of gas isotopic signature and composition, between the wells located in northern and southern parts of the reservoir(i.e. lighter δ13 C1, lower methane concentration, and negative sulfur isotope in the southern part) and light hydrocarbon ratios(e.g. nC 7/toluene, 2,6-dmC7/1,1,3-tmcyC5 and m-xylene/4-mC8) in different oil samples indicated two separate compartments. Gradual variations in a number of petroleum bulk properties(API gravity, V/Ni ratios and asphaltene concentration) provided additional evidence on the reservoir-filling direction, signifying that a horizontal equilibrium between reservoir fluids across the Yammama Reservoir is yet to be achieved. Finally, differences in water-oil contacts and reservoir types further confirmed the compartmentalization of the reservoir into two separate compartments.

关键词： reservoir compartmentalization gas geochemistry light hydrocarbons reservoir engineering Yammama Reservoir Foroozan Oilfield Iran

Using satellite-derived land surface temperatures to clarify the spatiotemporal warming trends of the Alborz mountains in northern Iran

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Journal of mountain Science 2024年第2期21卷 449-469页

作者： ROSHAN Gholamreza SARLI reza GHANGHERmEH Abdolazim TAHERIZADEH mehrnoosh NIKNAm Arman Department of Geography Golestan UniversityGorgan 49138-15759Iran Department of Forest Resources management Faculty of ForestryUniversity of Agriculture in KrakowAL.29 Listopada 4631-425 KrakówPoland Department of Geoinformatics Physical and Environmental GeographyUniversity of SzegedSzeged 6722Hungary

The Alborz mountains are some of the highest in Iran,and they play an important role in controlling the climate of the country’s northern *** land surface temperature(LST)is an important variable that affects the ecosystem of this *** study investigated the spatiotemporal changes and trends of the nighttime LST in the western region of the Central Alborz mountains at elevations of 1500-4000 m above sea *** data were extracted for the period of 2000-2021,and the mann-Kendall nonparametric test was applied to evaluating the changes in the *** results indicated a significant increasing trend for the monthly average LST in may-August along the southern *** the northern and southern aspects showed decreasing trends for the monthly average LST in October,November,and march and an increasing trend in other *** all elevations,the average decadal change in the monthly average LST was more severe along the southern aspect(0.60°C)than along the northern aspect(0.37°C).The LST difference between the northern and southern aspects decreased in the cold months but increased in the hot *** the same elevation,the difference in the lapse rate between the northern and southern aspects was greater in the hot months than in the cold *** increasing elevation,the lapse rate between the northern and southern aspects *** change was concluded to greatly decrease the difference in LST at different elevations for April-July.

关键词： Global warming mountainous areas Lapse rate Surface air temperatures Alborz

Template-based growth of titanium dioxide nanorods by a particulate sol-electrophoretic deposition process

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Particuology 2011年第2期9卷 161-169页

作者： mohammad reza mohammadi Farideh Ordikhani Derek J.Fray Farzad Khomamizadeh Department of materials Science & Engineering Sharif University of Technology Department of materials Science & metallurgy University of Cambridge

TiO2 nanorods have been successfully grown into a track-etched polycarbonate （PC） membrane by a particulate sol-electrophoretic deposition from an aqueous medium. The prepared sols had a narrow particle size distribution around 17 nm and excellent stability against aging, with zeta potentials in the range of 47-50 mV at pH 2. It was found that TiO2 nanorods were grown from dilute aqueous sol with a low, 0.1-m concentration. Fourier transform infrared spectroscopy （FT-IR） analysis confirmed that a full conversion of titanium isopropoxide was obtained by hydrolysis, resulting in the formation of TiO2 particles. X-ray diffraction （XRD） results revealed that TiO2 nanorods dried at 100℃ were a mixture of anatase and brookite phases, whereas they were a mixture of anatase and futile structures at 500℃. moreover, the rutile content of the TiO2 nanorods was higher than that of TiO2 powders. Transmission electron microscope （TEm） images confirmed that TiO2 nanorods had a smooth morphology and longi- tudinal uniformity in diameter. Field emission scanning electron microscope （FE-SEm） images showed that TiO2 nanorods grown by sol-electrophoresis from the dilute aqueous sol had a dense structure with a uniform diameter of 200 rim, containing small particles with an average size of 15 nm. Simultaneous differential thermal （SDT） analysis verified that individual TiO2 nanorods, grown into a PC template, were obtained after annealing at 500℃. Based on kinetic studies, it was found that uniform TiO2 nanorods with high-quality morphology were obtained under optimum conditions at an applied potential of 0.3 V/cm and a deposition time of 60 min.

关键词： Nanorod Crystal morphology Electrophoretic deposition Sol-electrophoresisTitanium dioxide

Extramammary Paget’s disease: Updates in the workup and management

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Asian Journal of Urology 2022年第4期9卷 451-459页

作者： reza Nabavizadeh Khushali B.Vashi Behnam Nabavizadeh Vikram m.Narayan Viraj A.master Department of Urology Emory University School of MedicineAtlantaGAUSA Department of Urology Weill Cornell MedicineNew YorkNYUSA Winship Cancer Institute AtlantaGAUSA

Objective:Extramammary Paget’s disease(EmPD)is a rare cutaneous malignant *** to its rarity,there is a paucity of data regarding best treatment *** primarily affects apocrine gland-bearing skin areas such as the vulva,scrotum,and *** objective was to provide a present-day rationale for diagnosis,pathogenesis,and treatment of EmPD with a focus on recent progress in workup and management of the ***:Literature on EmPD until February 2022 was assessed through Pubmed,mEDLINE databases,and Google scholar.A narrative review of the most relevant articles was ***:EmPD usually presents with indolent growth while usually being diagnosed primarily as carcinoma in *** foundation of EmPD treatment centers around prompt and accurate diagnosis,wide local or mohs micrographic surgical excision with proper management towards the margin status,and careful consideration for lymphadenectomy in patients with regionally positive *** chemotherapies are alternative treatments modality for patients with distant metastases;however,they sometimes have suboptimal *** present,there is no agreement regarding adjuvant or systemic therapies,although recent studies have shown several insights into the molecular pathogenesis,tumor biology,and genomics of the development and advancement of EmPD,which may lead to novel and targeted treatment approaches for metastatic EmPD in the ***:Patients with EmPD should seek care from physicians with expertise in disease management and patient *** patients should be surveilled with close follow-up to evaluate them for disease recurrence or *** collaborations with groups such as the Global Society for Rare Genitourinary Tumors,and especially patient support groups are crucial in designing clinical trials to help elucidate more robust data in this orphan disease.

关键词： Extramammary Paget’s disease Extramammary Paget’s malignancy Genitourinary Paget’s disease Rare genitourinary tumors

Evaluation of biological control agents for mosquitoes control in artificial breeding places

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Asian Pacific Journal of Tropical medicine 2010年第4期3卷 276-277页

作者： Salim Abadi Yaser Vatandoost Hassan Rassi Yavar Abai mohammad reza Sanei Dehkordi Ali reza Paksa Azim Department of medical Entomology and Vector Control School of Public HealthTehran University of Medical SciencesTehranIran

Objective:To evaluate the entomological impact of chlorpyrifos-methyl,Bacillus thuringiensis, and Gambusia affinis on mosquitoes control in artificial breeding ***:A Latin square design with 4 replicates was performed in order to evaluate the efficacy of chlorpyrifosmethyl, Bacillus thuringiensis,and Gambusia affinis on *** larvicide was applied at the dosage of 100 mg a.h/ha,Bacillus thuringiensis at the recommended dosage and 10 fishes per m^2 were applied at 1×1 m^2 artificial breeding *** larval densities for both anopheline and culicine were counted according to larvae /10 dippers prior and 24 h after ***: All three control agents are effective for mosquito density reduction,and the difference between the three agents and the control is significant(Pmong chlorpyrifos-methyl,Bacillus thuringiensis and Gambusia *** thuringiensis exhibited more reduction on mosquito larval density than fish and larvicide(Pmparison with two other agents is the appropriate method for larviciding in the breeding *** long term assessing for biological activities as well as monitoring and mapping of resistance is required.

关键词： Larvicide Biological control mosquito Iran

Pediculosis capitis among primary and middle school children in Asadabad,Iran:An epidemiological study

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Asian Pacific Journal of Tropical Biomedicine 2016年第4期6卷 367-370页

作者： mansour Nazari reza Goudarztalejerdi mostafa Anvari Payman Department of medical Entomology School of MedicineHamadan University of Medical Sciences

Objective:To investigate the prevalence of head lice in primary and middle school children in Asadabad,***:This study is an analytical descriptive cross-sectional one conducted among primary and middle school children in Asadabad during the academic year of 2013–*** were collected at baseline via questionnaire,checklist and head ***:A total of 600 students were examined(412 girls and 188 boys),and 14 students showed *** the total prevalence rate was 2.3%(3.2% girls and 0.5% boys).The infestation was equal in public and private *** rate of pediculosis was higher in students of primary schools(4.0%) than those in middle schools(0.7%).The age of the students ranged from 6 to 14 *** total number of infected group was 14 with mean age of 8.93 ± 2.43 years,and it was 586 with mean age of 10.98 ± 2.82 years for the uninfected group who were enrolled in the study(P mpared in terms of head lice infestation(P mic factors such as sharing common comb and a room with other people,frequency of bathing,and parents' profession and education were analyzed,and Chi-square test did not show a statistically significant relationship between head lice contamination and the abovementioned socioeconomic factors(P > 0.05).Conclusions:It is necessary to find the risk factors of the infection in order to understand how to control or decrease infection in students,considering the important role of health education in reduction of head lice infections.

关键词： Head lice Pediculosis School students Prevalence Epidemiology

Perspective on dietary isothiocyanates in the prevention,development and treatment of cancer

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Journal of Cancer metastasis and Treatment 2020年第1期6卷 271-286页

作者： Herman Yeger reza Bayat mokhtari The Hospital for Sick Children Program in Developmental and Stem Cell BiologyTorontoON M5G 0A4Canada Department Biomedical&molecular Sciences Botterell Hall Rm 827Queen’s UniversityKingstonON K7L 3N6Canada

Epidemiological evidence has highlighted the association of specific diets and a lower incidence of ***,the mediterranean diet provides high levels of polyphenolics and a high consumption of healthier fats,e.g.,as from olive *** the mediterranean region the consumption of vegetables is elevated providing a class of compounds,the isothiocyanates(ITCs)as found in the cabbage *** ITCs have raised great interest for their health benefits over the past few *** of the key ITC compounds,sulforaphane,phenethylisothiocyanate and benzyl isothiocyanate,have been studied in vitro and in vivo and the data support their promise for cancer chemoprevention,as anti-tumor agents,and for chemoprotection of normal tissues and *** with other polyphenolic compounds in the diet,in general,they also possess key anti-inflammatory properties thus satisfying the criteria for compounds that could intervene in cancer initiation and *** this review we provide a larger overview of the advantages of including ITCs in the diet as food or as supplements and speculate on what could constitute a valuable therapeutic strategy for improving and sustaining good health and countering cancer disease in humans.

关键词： mediterranean diet isothiocyanates chemoprevention chemoprotection anti-tumor hormesis mitohormesis anti-inflammatory

Combined effect of micro silica with clay, and gypsum as mulches on shear strength and wind erosion rate of sands

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International Soil and Water Conservation Research 2019年第4期7卷 388-394页

作者： Fateme Naghizade Asl Hamid reza Asgari Hojat Emami mohammad Jafari Department of Combating Desertification Gorgan University of Agricultural Sciences and Natural Resources***GorganIran Department of Soil Science Ferdowsi University of Mashhad***MashhadIran Department of Combating Desertification Tehran University***TehranIran

mulching is known as one of the fastest strategies to control wind erosion and sand dunes *** hypothesized that mixed micro silica with clay,gypsum and clay-gypsum as mulches will increase shear strength,threshold friction velocity and decrease soil losses of drifting *** this purpose,mixture of micro silica rates (0,1,5,10,15 and 20%) with clay,gypsum,and clay-gypsum applied on sand *** 60 days of mulching,shear strength,the threshold friction velocity and soil losses at a wind speed of 15 m/S at the height of 20 cm for 20 *** results of this research revealed that the addition of 10% of micro silica in combination with clay and clay-gypsum increased the shear strength up to 10.6 and 37.5% and the threshold friction velocity up to 45.2 and 48.5%,respectively and decreased soil losses up to 100% in comparison with the samples without micro *** micro silica to gypsum had no considerable effect on shear strength,threshold friction velocity and soil *** was concluded that no pozzolanic reaction occurred between micro silica and gypsum and it was found that improvement in mechanical property and erodibility of clay-gypsum mulch was probably due to the pozzolanic reaction between micro silica and *** of 10% of micro silica in combination with clay or clay-gypsum is therefore recommended as suitable mulch.

关键词： Drifting sands Soil loss Threshold friction velocity micro silica mulch

Estimation of spatial and temporal changes in net primary production based on Carnegie Ames Stanford Approach(CASA) model in semi-arid rangelands of Semirom County, Iran

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Journal of Arid Land 2019年第4期11卷 477-494页

作者： Fatemeh HADIAN reza JAFARI Hossein BASHARI mostafa TARTESH Kenneth DCLARKE Department of Natural Resources Isfahan University of TechnologyIsfahan***Iran School of Biological Sciences University of AdelaideSouth Australia5005Australia

Net primary production(NPP) is an indicator of rangeland ecosystem function. This research assessed the potential of the Carnegie Ames Stanford Approach(CASA) model for estimating NPP and its spatial and temporal changes in semi-arid rangelands of Semirom County, Iran. Using CASA model, we estimated the NPP values based on monthly climate data and the normalized difference vegetation index(NDVI) obtained from the mODIS sensor. Regression analysis was then applied to compare the estimated production data with observed production data. The spatial and temporal changes in NPP and light utilization efficiency(LUE) were investigated in different rangeland vegetation types. The standardized precipitation index(SPI) was also calculated at different time scales and the correlation of SPI with NPP changes was determined. The results indicated that the estimated NPP values varied from 0.00 to 74.48 g C/(m^2·a). The observed and estimated NPP values had different correlations, depending on rangeland conditions and vegetation types. The highest and lowest correlations were respectively observed in Astragalus spp.-Agropyron spp. rangeland(R^2=0.75) with good condition and Gundelia spp.-Cousinia spp. rangeland(R^2=0.36) with poor and very poor conditions. The maximum and minimum LUE values were found in Astragalus spp.-Agropyron spp. rangeland(0.117 g C/mJ) with good condition and annual grassesannual forbs rangeland(0.010 g C/mJ), respectively. According to the correlations between SPI and NPP changes, the effects of drought periods on NPP depended on vegetation types and rangeland conditions. Annual plants had the highest drought sensitivity while shrubs exhibited the lowest drought sensitivity. The positive effects of wet periods on NPP were less evident in degraded areas where the destructive effects of drought were more prominent. Therefore, determining vegetation types and rangeland conditions is essential in NPP estimation. The findings of this study confirmed the potentia

关键词： CASA NPP estimation light utilization efficiency vegetation type drought rangeland condition semiarid rangelands