Problem with Objectives of Minimizing Resource Costs and Minimizing Project Completion Time
amir abas
najafii
عضو هیات علمی دانشگاه خواجه نصیرالدین طوسی
author
faramarz
shamsnatari
author
mohammad
najafi
author
text
article
2013
per
A Resource Investment Problem is a project scheduling problem recently considered. In this issue, in contrast with other project scheduling, the project availability of needed resources level is considered decision variable and the goal is to find a schedule and resource requirement level. Researches regarding this field are related to optimizing an objective. In this paper, resource investment problem is studied for simultaneous optimization minimizing projectspan and project resource costs. Two multi-objective meta-heuristic algorithms, two process sub-population genetic algorithms and multi-population genetic algorithm are proposed to find solutions. According to evaluation criteria, the function of two algorithms is computationally compared and.
Industrial Management Studies
Allameh Tabataba'i University
2251-8029
11
v.
29
no.
2013
1
20
https://jims.atu.ac.ir/article_1247_bb9e884eb2e421890df47c43a41174ca.pdf
Topsis- based non-Iinear programming model for calculating the ldeal weights of the decision
seyed hossein
razavi hajiagha
عضو هیات علمی موسسه مطالعات و پژوهش های بازرگانی
author
hannan
amoozad mahdiraji
عضو هیات علمی دانشگاه ازاد اسلامی کاشان
author
hadi
akrami
author
shide sadat
hashemi
author
text
article
2013
per
The development of Multiple Criteria Decision Making Techniques is to provide the possibility of using multiple criteria in decision making problems. Multi-criteria decision making problems primarily relate to choosing the best option among several available options and according to some indicators. One of the major issues in this regard is to determine the importance weights of decision criteria. Various methods such as Entropy, LINMAP and Saaty’s method have been presented for determining the weights of the indicators. In this paper, a non-linear model based on the logic of TOPSIS method is proposed to estimate the ideal weights. Simplicity, Reduction of received data from the decision makers in the evaluation process, and the possibility of considering his comments about the preference of indicators to each other can be cited as the advantages of this method
Industrial Management Studies
Allameh Tabataba'i University
2251-8029
11
v.
29
no.
2013
21
39
https://jims.atu.ac.ir/article_1249_484767ac515640abc96d5393ec4dffae.pdf
Cost-oriented assembly line balancing with resource constraint
mohammad rahim
ramazanian
عضو هیات علمی دانشگاه گیلان
author
mohammad hasan
gholizadeh
عضو هیات علمی دانشگاه گیلان
author
shiva
shaban
author
text
article
2013
per
In this paper, based on the background of cost-oriented assembly line balancing problems, a novel mathematical model for scheduling and balancing the assembly line is offered that with the combination of task sequence-dependent setup time, parallel stations and resource constraint, minimizes the operational and investment costs of assembly system.
Due to the complexity of the problem, the equations have been proposed to reduce the number of variables of the model, and to achieve the optimal solution in reasonable time using exact algorithms. To clarify and explain the features of the model a numerical example have been used. Also the solutions obtained from model in several examples, have been analyzed using different indexes, and results indicative of appropriate performance of the model
Industrial Management Studies
Allameh Tabataba'i University
2251-8029
11
v.
29
no.
2013
41
59
https://jims.atu.ac.ir/article_1250_5043ec310b64ee19b17bc8ebdcf71429.pdf
A Fuzzy TOPSIS Approach with combined weights for vendor selection of communication systems
mohammadamin
nayebi
author
abouzar
parsanejhad
author
mohammad reza
parsanejhad
author
text
article
2013
per
In this paper, we present a MCDM model for vendor selection of Telecommunications systems. Decision making in Telecommunications systems (Central) is more important because of their communicational role in organizations. Considering the multiple criteria in the vendor selection of telecommunications systems is a multi-criteria problem. Because these decisions usually are based on the intellectual judgments of managers, Fuzzy logic is used to improve decision making. Literature review and experts opinions used for determining the model indexes and then developed a Fuzzy TOPSIS model with combined weighs. Combined weights are result of integrating various methods such as intellectual judgment of managers, Fuzzy statistical average, modified weight and fuzzy weigh. In this model all numbers are Fuzzy and triangular type. A case study done in Qazvin Islamic Azad University to apply the developed model.
Industrial Management Studies
Allameh Tabataba'i University
2251-8029
11
v.
29
no.
2013
61
87
https://jims.atu.ac.ir/article_1251_1347b241c53a66d2696ff3f4dc80e7ca.pdf
The Estimation of the Bullwhip Effect and Stock Functions Using Response Surface Methodology
maghsoud
amiri
عضو هیات علمی دانشگاه علامه طباطبایی
author
laya
olfat
عضو هیات علمی دانشگاه علامه طباطبایی
author
amir
hasanzadeh
author
text
article
2013
per
A major cause of supply chain deficiencies is the bullwhip effect. This phenomenon refers to demand variability increases as one move up the supply chain. Supply chain managers experience this variance amplification in both inventory levels and orders. Other side, dampening variability in orders may have a negative impact on customer service due to increase in inventory variance. The contribution of this paper is the estimation of the bullwhip effect and stock functions with using of response surface method under causes of the bullwhip effect in a three stage supply chains consisting of a single retailer, single wholesaler and single manufacturer with both centralized and un-centralized chains and show that with Considering the importance of the bullwhip effect reasons and interactions between them, the percent of optimal reasons and interactions between them and the level of desirability of bullwhip effect and net Stock will be illustrated by a model
Industrial Management Studies
Allameh Tabataba'i University
2251-8029
11
v.
29
no.
2013
89
112
https://jims.atu.ac.ir/article_1254_6fc0129be4014fd09f52e94caee221cd.pdf
Prioritizing of Strategy Implementation Obstacles among Energy sector's Contractors Using Fuzzy TOPSIS Method
seyed mohammad ali
khatami firouzabadi
عضو هیات علمی دانشگاه علامه طباطبایی
author
seyed hossein
galali
author
seyed ali mohammad
parvardeh
author
text
article
2013
per
The main purpose of this practical survey is devoted to identify the obstacles of strategic plan implementation among energy sector's contractors and then, to present a classification of identified obstacles on the basis of their priorities. In order to achieve this purpose, 8 factors were chosen as the obstacles of strategic plans in energy sector following the literature review and experts comments, and then applied to 87 managers and senior experts of strategic planning in contracting firms by a questionnaire. The Fuzzy TOPSIS technique is assumed as a well-known Multiple-criteria Decision Making (MCDM) approach. Results showed that organizational structure was received the most priority as an obstacle in implementing strategic plan in contracting industry and operational planning, resource allocation, quality of strategy, communication, strategy executors, control and commitment got subsequent ranks. So, findings of this survey could improve the efficiency of contracting firm's managers to direct the process of strategy implementation and to overcome on identified obstacles
Industrial Management Studies
Allameh Tabataba'i University
2251-8029
11
v.
29
no.
2013
113
137
https://jims.atu.ac.ir/article_1255_c72a55cc787d19d1c134c2efde797f13.pdf
An experimental application of the Delphi method to presentation strategic risks map in Non _Usury Banking
hamid reza
fartook zadeh
استادیار دانشگاه صنعتی مالک اشتر
author
mahdi
elahi
author
text
article
2013
per
As the most important institutions, Banks face different risks. As a matter of fact, risk is the results of the internal – external elements and the stakeholder’s expectations of the current and future status of the banks which are active in the country.
Under a poor management some of this risks which forces called strategic risks may cause bankruptcy.
One characteristic of mature banks is the development of a certain integrated processes of risk management .Due to the necessity of applying this approach in banking, we chose the Mellat Bank as a case study in this article.
Our goal in this research was acquiring knowledge of banking experts to reveal and document strategic risks by use of Delphi methodology. This research is up to identify and rank the strategic risks of Mellat Bank and draws the strategic risk map
Industrial Management Studies
Allameh Tabataba'i University
2251-8029
11
v.
29
no.
2013
139
154
https://jims.atu.ac.ir/article_1256_9f787c7c63209760567131895f02d892.pdf