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On the failure probability of used coherent systems
, Article Communications in Statistics - Theory and Methods ; Vol. 43, issue. 10-12 , May , 2014 , pp. 2468-2475 ; ISSN: 03610926 ; Asadi, A. R ; Sharif University of Technology
Abstract
In analyzing the lifetime properties of a coherent system, the concept of "signature" is a useful tool. Let T be the lifetime of a coherent system having n iid components. The signature of the system is a probability vector s=(s1, s2,., sn), such that s i=P(T=Xi:n), where, Xi:n, i=1, 2,., n denote the ordered lifetimes of the components. In this note, we assume that the system is working at time t>0. We consider the conditional signature of the system as a vector in which the ith element is defined as pi(t)=P(T=Xi: n|T>t) and investigate its properties as a function of time
Iranian national olympiad in informatics
, Article International Conference Joint with the 29th International Olympiad in Informatics, IOI 2017, 28 July 2017 through 4 August 2017 ; Volume 11, Issue Special Issue , 2017 , Pages 25-33 ; 18227732 (ISSN) ; Asadi, A ; Jabal Ameli, A ; Seddighin, S. R ; Shahmohammadi, F ; Sharif University of Technology
Vilnius University
2017
Electrical and heat distributions and their influence on the mass transfer during the flash spark plasma sintering of a Cu/Cr nanocomposite: experiments and numerical simulation
, Article Materials ; Volume 15, Issue 20 , 2022 ; 19961944 (ISSN) ; Asadi, A ; Sovizi, S ; Moskovskikh, D ; Ostrikov, K ; Mukasyan, A ; Sharif University of Technology
MDPI
2022
Abstract
The nanocomposite Cu–Cr powder was consolidated by flash spark plasma sintering (FSPS), which involves applying an extremely rapid change in the electrical power passing through the bulk of the sample. It was demonstrated that an essentially fully dense material could be obtained in 15 s. Such short-term treatment typically preserves the nanostructured features of the material. However, investigation revealed a nonuniformity in the microstructure of the alloys obtained under such extreme conditions. To better understand the observed effects, the FSPS process was simulated. It was observed that a rapid change in the applied electrical power resulted in nonuniform distributions of current...
Influence of pulsed direct current on the growth rate of intermetallic phases in the Ni–Al system during reactive spark plasma sintering
, Article Scripta Materialia ; Volume 216 , 2022 ; 13596462 (ISSN) ; Asadi, A ; Sovizi, S ; Moskovskikh, D ; Vorotilo, S ; Mukasyan, A ; Sharif University of Technology
Acta Materialia Inc
2022
Abstract
The effect of pulsed direct current (PDC) on solid-state diffusion in the Ni–Al binary system was investigated. Two experimental schemes were employed: in the presence and absence of an electric field. The diffusion couples were heat-treated for 1.5, 3, and 5 h at 803, 833, and 863 K. Under the investigated conditions, only two intermetallic phases (NiAl3 and Ni2Al3) formed at the boundary of the metals. It was shown that the PDC passing through the diffusion couple significantly enhanced the growth rates of both phases. The apparent reaction–diffusion coefficients were DNiAl3=4.0×10−9exp(−[Formula presented]) and DNi2Al3=9.7×10−9exp(−[Formula presented]) in the field-assisted scheme,...
Mapping 123 million neonatal, infant and child deaths between 2000 and 2017
, Article Nature ; Volume 574, Issue 7778 , 2019 , Pages 353-358 ; 00280836 (ISSN) ; Henry, N. J ; Collison, M. L ; Marczak, L. B ; Sligar, A ; Watson, S ; Marquez, N ; Abbasalizad Farhangi, M ; Abbasi, M ; Abd-Allah, F ; Abdoli, A ; Abdollahi, M ; Abdollahpour, I ; Abdulkader, R. S ; Abrigo, M. R. M ; Acharya, D ; Adebayo, O. M ; Adekanmbi, V ; Adham, D ; Afshari, M ; Aghaali, M ; Ahmadi, K ; Ahmadi, M ; Ahmadpour, E ; Ahmed, R ; Akal, C. G ; Akinyemi, J. O ; Alahdab, F ; Alam, N ; Alamene, G. M ; Alene, K. A ; Alijanzadeh, M ; Alinia, C ; Alipour, V ; Aljunid, S. M ; Almalki, M. J ; Al-Mekhlafi, H. M ; Altirkawi, K ; Alvis-Guzman, N ; Amegah, A. K ; Amini, S ; Amit, A. M. L ; Anbari, Z ; Androudi, S ; Anjomshoa, M ; Ansari, F ; Antonio, C. A. T ; Arabloo, J ; Arefi, Z ; Aremu, O ; Armoon, B ; Arora, A ; Artaman, A ; Asadi, A ; Asadi Aliabadi, M ; Ashraf Ganjouei, A ; Assadi, R ; Ataeinia, B ; Atre, S. R ; Quintanilla, B. P. A ; Ayanore, M. A ; Azari, S ; Babaee, E ; Babazadeh, A ; Badawi, A ; Bagheri, S ; Bagherzadeh, M ; Baheiraei, N ; Balouchi, A ; Barac, A ; Bassat, Q ; Baune, B. T ; Bayati, M ; Bedi, N ; Beghi, E ; Behzadifar, M ; Behzadifar, M ; Belay, Y. B ; Bell, B ; Bell, M. L ; Berbada, D. A ; Bernstein, R. S ; Bhattacharjee, N. V ; Bhattarai, S ; Bhutta, Z. A ; Bijani, A ; Bohlouli, S ; Breitborde, N. J. K ; Britton, G ; Browne, A. J ; Nagaraja, S. B ; Busse, R ; Butt, Z. A ; Car, J ; Cárdenas, R ; Castañeda Orjuela, C. A ; Cerin, E ; Chanie, W. F ; Chatterjee, P ; Chu, D. T ; Cooper, C ; Costa, V. M ; Dalal, K ; Dandona, L ; Dandona, R ; Daoud, F ; Daryani, A ; Das Gupta, R ; Davis, I ; Davis Weaver, N ; Davitoiu, D. V ; De Neve, J. W ; Demeke, F. M ; Demoz, G. T ; Deribe, K ; Desai, R ; Deshpande, A ; Desyibelew, H. D ; Dey, S ; Dharmaratne, S. D ; Dhimal, M ; Diaz, D ; Doshmangir, L ; Duraes, A. R ; Dwyer Lindgren, L ; Earl, L ; Ebrahimi, R ; Ebrahimpour, S ; Effiong, A ; Eftekhari, A ; Ehsani Chimeh, E ; El Sayed, I ; El Sayed Zaki, M ; El Tantawi, M ; El-Khatib, Z ; Emamian, M. H ; Enany, S ; Eskandarieh, S ; Eyawo, O ; Ezalarab, M ; Faramarzi, M ; Fareed, M ; Faridnia, R ; Faro, A ; Fazaeli, A.A ; Fazlzadeh, M ; Fentahun, N ; Fereshtehnejad, S. M ; Fernandes, J. C ; Filip, I ; Fischer, F ; Foigt, N. A ; Foroutan, M ; Francis, J. M ; Fukumoto, T ; Fullman, N ; Gallus, S ; Gebre, D. G ; Gebrehiwot, T. T ; Gebremeskel, G. G ; Gessner, B. D ; Geta, B ; Gething, P. W ; Ghadimi, R ; Ghadiri, K ; Ghajarzadeh, M ; Ghashghaee, A ; Gill, P. S ; Gill, T. K ; Golding, N ; Gomes, N. G. M ; Gona, P. N ; Gopalani, S. V ; Gorini, G ; Goulart, B. N. G ; Graetz, N ; Greaves, F ; Green, M. S ; Guo, Y ; Haj-Mirzaian, A ; Haj-Mirzaian, A ; Hall, B. J ; Hamidi, S ; Haririan, H ; Haro, J. M ; Hasankhani, M ; Hasanpoor, E ; Hasanzadeh, A ; Hassankhani, H ; Hassen, H. Y ; Hegazy, M. I ; Hendrie, D ; Heydarpour, F ; Hird, T. R ; Hoang, C. L ; Hollerich, G ; Rad, E. H ; Hoseini Ghahfarokhi, M ; Hossain, N ; Hosseini, M ; Hosseinzadeh, M ; Hostiuc, M ; Hostiuc, S ; Househ, M ; Hsairi, M ; Ilesanmi, O. S ; Imani-Nasab, M. H ; Iqbal, U ; Irvani, S. S. N ; Islam, N ; Islam, S. M. S ; Jürisson, M ; Balalami, N. J ; Jalali, A ; Javidnia, J ; Jayatilleke, A. U ; Jenabi, E ; Ji, J. S ; Jobanputra, Y. B ; Johnson, K ; Jonas, J. B ; Shushtari, Z. J ; Jozwiak, J. J ; Kabir, A ; Kahsay, A ; Kalani, H ; Kalhor, R ; Karami, M ; Karki, S ; Kasaeian, A ; Kassebaum, N. J ; Keiyoro, P. N ; Kemp, G. R ; Khabiri, R ; Khader, Y. S ; Khafaie, M. A ; Khan, E. A ; Khan, J ; Khan, M. S ; Khang, Y. H ; Khatab, K ; Khater, A ; Khater, M. M ; Khatony, A ; Khazaei, M ; Khazaei, S ; Khazaei Pool, M ; Khubchandani, J ; Kianipour, N ; Kim, Y. J ; Kimokoti, R. W ; Kinyoki, D. K ; Kisa, A ; Kisa, S ; Kolola, T ; Kosen, S ; Koul, P. A ; Koyanagi, A ; Kraemer, M. U. G ; Krishan, K ; Krohn, K. J ; Kugbey, N ; Kumar, G. A ; Kumar, M ; Kumar, P ; Kuupiel, D ; Lacey, B ; Lad, S. D ; Lami, F. H ; Larsson, A. O ; Lee, P. H ; Leili, M ; Levine, A. J ; Li, S ; Lim, L. L ; Listl, S ; Longbottom, J ; Lopez, J. C. F ; Lorkowski, S ; Magdeldin, S ; Abd El Razek, H. M ; Abd El Razek, M. M ; Majeed, A ; Maleki, A ; Malekzadeh, R ; Malta, D. C ; Mamun, A. A ; Manafi, N ; Manda, A. L ; Mansourian, M ; Martins-Melo, F. R ; Masaka, A ; Massenburg, B. B ; Maulik, P. K ; Mayala, B. K ; Mazidi, M ; McKee, M ; Mehrotra, R ; Mehta, K. M ; Meles, G. G ; Mendoza, W ; Menezes, R. G ; Meretoja, A ; Meretoja, T. J ; Mestrovic, T ; Miller, T. R ; Miller-Petrie, M. K ; Mills, E. J ; Milne, G. J ; Mini, G. K ; Mir, S. M ; Mirjalali, H ; Mirrakhimov, E. M ; Mohamadi, E ; Mohammad, D. K ; Darwesh, A. M ; Mezerji, N. M. G ; Mohammed, A. S ; Mohammed, S ; Mokdad, A. H ; Molokhia, M ; Monasta, L ; Moodley, Y ; Moosazadeh, M ; Moradi, G ; Moradi, M ; Moradi, Y ; Moradi Lakeh, M ; Moradinazar, M ; Moraga, P ; Morawska, L ; Mosapour, A ; Mousavi, S. M ; Mueller, U. O ; Muluneh, A. G ; Mustafa, G ; Nabavizadeh, B ; Naderi, M ; Nagarajan, A. J ; Nahvijou, A ; Najafi, F ; Nangia, V ; Ndwandwe, D. E ; Neamati, N ; Negoi, I ; Negoi, R. I ; Ngunjiri, J. W ; Thi Nguyen, H. L ; Nguyen, L. H ; Nguyen, S. H ; Nielsen, K. R ; Ningrum, D. N. A ; Nirayo, Y. L ; Nixon, M. R ; Nnaji, C. A ; Nojomi, M ; Noroozi, M ; Nosratnejad, S ; Noubiap, J. J ; Motlagh, S. N ; Ofori Asenso, R ; Ogbo, F. A ; Oladimeji, K. E ; Olagunju, A. T ; Olfatifar, M ; Olum, S ; Olusanya, B. O ; Oluwasanu, M. M ; Onwujekwe, O. E ; Oren, E ; Ortega Altamirano, D. D. V ; Ortiz, A ; Osarenotor, O ; Osei, F. B ; Osgood-Zimmerman, A. E ; Otstavnov, S. S ; Owolabi, M. O ; Mahesh, P. A ; Pagheh, A.S ; Pakhale, S ; Panda Jonas, S ; Pandey, A ; Park, E. K ; Parsian, H ; Pashaei, T ; Patel, S. K ; Pepito, V. C. F ; Pereira, A ; Perkins, S ; Pickering, B. V ; Pilgrim, T ; Pirestani, M ; Piroozi, B ; Pirsaheb, M ; Plana Ripoll, O ; Pourjafar, H ; Puri, P ; Qorbani, M ; Quintana, H ; Rabiee, M ; Sharif University of Technology
Nature Publishing Group
2019
Abstract
Since 2000, many countries have achieved considerable success in improving child survival, but localized progress remains unclear. To inform efforts towards United Nations Sustainable Development Goal 3.2—to end preventable child deaths by 2030—we need consistently estimated data at the subnational level regarding child mortality rates and trends. Here we quantified, for the period 2000–2017, the subnational variation in mortality rates and number of deaths of neonates, infants and children under 5 years of age within 99 low- and middle-income countries using a geostatistical survival model. We estimated that 32% of children under 5 in these countries lived in districts that had attained...