Zobrazeno 1 - 10
of 57
pro vyhledávání: '"ahmad sadegheih"'
Publikováno v:
Heliyon, Vol 10, Iss 12, Pp e32758- (2024)
In recent decades, water scarcity has turned into a serious problem spanning many countries, now even capable of causing or inflaming ethnic and national conflicts. While our planet has very limited freshwater resources, it has huge amounts of saltwa
Externí odkaz:
https://doaj.org/article/5556e320b7f844208160bcb7ee645300
Publikováno v:
International Journal of Industrial Engineering and Production Research, Vol 34, Iss 4, Pp 214-234 (2023)
Compared to coal and other fossil fuels, renewable energy (RE) sources emit significantly less carbon dioxide (CO2). In this sense, switching to such sources brings many positive effects to the environment through mitigating climate change, so the te
Externí odkaz:
https://doaj.org/article/1e7677ae05044300ab7a94bbf456b90b
Publikováno v:
International Journal of Industrial Engineering and Production Research, Vol 33, Iss 1, Pp 186-194 (2022)
The health insurance system can play an effective role to control health expenditures. The purpose of this study is to provide a model for estimating the physician visit tariffs. To achieve this goal, a hybrid model was used. fuzzy logic is the most
Externí odkaz:
https://doaj.org/article/585f29e8ba4344b0b573689cf1b88a05
Publikováno v:
بهبود مدیریت, Vol 15, Iss 2, Pp 97-126 (2021)
The Aircraft Maintenance, Repair, and Overhaul (MRO) has always played a key role in the aviation industry which is responsible for restoring aircraft to flight conditions based on a set of technical instructions and implementation of repair processe
Externí odkaz:
https://doaj.org/article/739af8d620444608864863288d142e16
Autor:
reza noori, ahmad sadegheih
Publikováno v:
مجله مدل سازی در مهندسی, Vol 18, Iss 61, Pp 63-84 (2020)
In this paper, a single-product, single-machine system under Markovian deterioration of machine condition and demand uncertainty is studied. The objective is to find the optimal intervals for inspection and preventive maintenance (PM) activities in a
Externí odkaz:
https://doaj.org/article/22db51c3f6014a68a553844e103d594a
Autor:
saeed dehnavi, ahmad sadegheih
Publikováno v:
International Journal of Industrial Engineering and Production Research, Vol 31, Iss 1, Pp 13-34 (2020)
In this paper, an integrated mathematical model of the dynamic cell formation and production planning, considering the pricing and advertising decision is proposed. This paper puts emphasis on the effect of demand aspects (e.g., pricing and advertisi
Externí odkaz:
https://doaj.org/article/37b0243ad63a41bc8dce10b201ab0680
Autor:
Ahmad Sadegheih, Saeed Dehnavi-Arani
Publikováno v:
مدیریت تولید و عملیات, Vol 10, Iss 2, Pp 55-73 (2019)
Abstract: In this paper, a new integrated mathematical model of the production planning and dynamic cellular manufacturing system (DCMS) wherein the product mix and/or volume is different from one period to another has been developed. So far, literat
Externí odkaz:
https://doaj.org/article/e6d64e8437e547178a15eb6e08ea3c0f
Publikováno v:
Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, Vol 26, Iss 1, Pp 27-39 (2018)
Introdution: Intensity- modulated radiation therapy is one of the treatment methods for cancer tumors. The effectiveness of this method is dependent on the accuracy and treatment planning quality. Therefore, there is a need for a plan to select the a
Externí odkaz:
https://doaj.org/article/fb5901892d66493dadec50781719a6b7
Publikováno v:
RAIRO - Operations Research. 56:3733-3763
This paper aims to develop a mathematical model for rapid transit networks based on a hub and spoke model, comprising stopovers (stations) in the hub and non-hub (spoke) alignments. Due to the use of rapid transit systems in both the hub-level sub-ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31813baf8f47bb6c028ff6d9ae3d881e
https://doi.org/10.1051/ro/2022170
https://doi.org/10.1051/ro/2022170
Publikováno v:
International journal of health sciences. :6703-6722
Several alternative approaches have been proposed for supply chain modeling majority of which steady-state models. These models cannot adequately deal with dynamic characteristics of supply chain system affected by lead time, demand fluctuation, sale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4537136ad32a2e67c8198596619f7dc3
https://doi.org/10.53730/ijhs.v6ns5.10323
https://doi.org/10.53730/ijhs.v6ns5.10323