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| 1 | Plasma Sprayed NiAl Intermetallic Coating Produced with Mechanically Alloyed Powder显示文摘In the present research, mechanically alloyed Ni-Al powder was utilized to develop plasma sprayed coatings, and the effect of the spray distance and heat treatment on the phases, microstructure, and hardness of the coat- ings were examined. Coatings were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) and through microhardness measurements. Although mechanically al- loyed Ni-Al powder showed no intermetallic phases, the coatings did. Different spray distances from 5 to 19 cm were employed for plasma spray and the specimens were heat treated at different temperatures, then the amount of oxides, porosity and hardness of the coatings were changed according to the spray condition. The thermal energy of the plasma spray caused the formation of NiAl phases while particles flew to the substrate or after that. Extreme increase in heat treatment temperature and spray distance resulted in oxidation and reduction in the quality of the coating. Furthermore, the best spray distance and heat treatment temperature to gain the NiAl intermetallic coating were established. | Mehrshad Moshref Javadi Hossein Edris Mahdi Salehi | 2011 | Journal of Materials Science & Technology2011,27,9: | 5 |
| 2 | Layered material GeSe and vertical GeSe/MoS2 p-n heterojunctions显示文摘 | Wui Chung Yap Zhengfeng Yang Mehrshad Mehboudi Jia-An Yan Salvador Barraza-Lopez Wenjuan Zhu | 2018 | Nano Research2018,11,1: | 2 |
| 3 | Gorgan Bay: a microcosm for study on macrobenthos speciesenvironment relationships in the southeastern Caspian Sea显示文摘The relationship between spatial patterns of macrobenthos community characteristics and environmental conditions(salinity, temperature, dissolved oxygen, organic matter content, sand, silt and clay) was investigated throughout the Gorgan Bay in June 2010. Principal components analysis(PCA) based on environmental data separated eastern and western stations. The maximum(4 500 ind./m2) and minimum(411 ind./m2) densities were observed at Stas 1 and 6, respectively. Polychaeta was the major group and Streblospio gynobranchiata was dominant species in the bay. According to Distance Based Linear Models results, macrofaunal total density was correlated with silt percentage and salinity and these two factors explaining 64% of the variability while macrofaunal community structure just correlated with salinity(22% total variation). In general, western part of the bay showed the highest number of species and biodiversity while, the highest density was found at Sta. 1 and in the middle part of the bay. Furthermore, relationship between diversity indices and macrobenthic species with measured factors is also discussed. Our results confirm the effect of salinity as an important factor on distribution of macrobenthic fauna in south Caspian brackish waters. | GHASEMI Amir Faraz TAHERI Mehrshad FOSHTOMI Maryam Yazdani NORANIAN Majid MIRA Seyed Sahab JAM Armin | 2016 | Acta Oceanologica Sinica2016,35,4: | 1 |
| 4 | Comparison of a 3-hour versus a 6-hour sampling-protocol using high-sensitivity cardiac troponin T for rule-out and rule-in of non-STEMI in an unselected emergency department population显示文摘 | Moritz Biener Matthias Mueller Mehrshad Vafaie Till Keller Stefan Blankenberg Harvey D. White Hugo A. Katus Evangelos Giannitsis | 2012 | International Journal of Cardiology2012,,: | 1 |
| 5 | Prediction model for determining the optimum operational parameters in laser forming of fiber-reinforced composites显示文摘Composite materials are widely employed in various industries,such as aerospace,automobile,and sports equipment,owing to their lightweight and strong structure in comparison with conventional materials.I aser material processing is a rapid technique for performing the various processes on composite materials.In particular,laser forming is a flexible and reliable approach for shaping fiber-metal laminates(FML.s),which are widely used in the aerospace industry due to several advantages,such as high strength and light weight.In this study,a prediction model was developed for determining the optimal laser parameters(power and speed)when forming FML composites.Artificial neural networks(ANNs)were applied to estimate the process outputs(temperature and bending angle)as a result of the modeling process.For this purpose,several ANN models were developed using various strategies.Finally,the achieved results demonstrated the advantage of the models for predicting the optimal operational parameters. | Annamaria Gisario Mehrshad Mehrpouya Atabak Rahimzadeh Andrea De Bartolomeis Massimiliano Barletta | 2020 | Advances in Manufacturing2020,8,2: | 1 |
| 6 | Machine vision based monitoring of an industrial flotation cell in an iron flotation plant 显示文摘 | Mehrabi A Mehrshad N Massinaei M | 2014 | International Journal of Mineral Processing2014,133,8: | 1 |
| 7 | Constrained Portfolio Selection using ParticleSwarm Optimization 显示文摘 | RG Hamid F Mehrshad | 2011 | Expert Systems with Applications2011,,38: | 1 |
| 8 | Survey on cattle ticks in Nur,north of Iran显示文摘Objective:To survey the prevalence of cattle ticks in Nur County and prepare a list of tick fauna in this district.Methods:This investigation was carried out on 150 head of cattle ticks of rural areas of Nur city which is located in Mazandaran province during spring and summer seasons of 2011.The collected ticks were identified using light microscope and available systematic keys.Results:A total number of 1563 ticks were isolated from examined cattle and their genus and numbers including:lxodes ricinus 51%(111 male and 691 female)and Boophilus annulatus 49%(83male and 678 female),respectively.Conclusions:Results of the current investigation indicate the presence of two species of acarine ectoparasites which have potential health risk lxodes ricinus and Boophilus annulatus.More studies are required to increase our data concerning ticks and other ectopreasites of ruminants in other areas of Mazandaran province and should be noted to their ability in transmission of infectious agents. | Ashkan Ghasemi Moghaddam Mozafar Razavi Seyed Mehrshad Rasouli Sajad Hosseinzade Mohammad Mehdi Darvishi Arash Rakhshanpour Mohammad Taghi Rahimi | 2014 | Asian Pacific Journal of Tropical Biomedicine2014,4,3: | 0 |
| 9 | Nematode community structure in relation to metals in the southern of Caspian Sea显示文摘Spatial distribution and structure of nematode assemblages in coastal sediments of the southern part of the Caspian Sea were studied in relation to environmental factors. By considering metals, organic matter, Shannon diversity index(H), maturity index(MI) and trophic diversity(ITD), ecological quality status of sediment was also determined. Fifteen nematode species belonging to eleven genera were identified at the sampling sites. Average density of nematode inhabiting in sediment of the studied area was 139.78±98.91(ind. per 15.20 cm^2). According to redundancy analysis(RDA), there was high correlation between metals and some species. Based on biological indicators, the studied area had different environmental quality. Generally, chemical and biological indices showed different results while biological indices displayed similar results in more sites. | Kazem Darvish Bastami Mehrshad Taheri Maryam Yazdani Foshtomi Sarah Haghparast Ali Hamzehpour Hossein Bagheri Marjan Esmaeilzadeh Neda Molamohyeddin | 2017 | Acta Oceanologica Sinica2017,36,10: | 0 |