scholarly journals Solving a Biorefinery Location Problem Case in Spain: Uncertainty in Strategic Decisions.

2021 ◽  
Vol 52 ◽  
pp. 67-74
Author(s):  
Adrian Serrano-Hernandez ◽  
Luis Cadarso ◽  
Javier Faulin
2020 ◽  
Vol 10 (20) ◽  
pp. 7110 ◽  
Author(s):  
Roghayyeh Alizadeh ◽  
Tatsushi Nishi

This paper presents an extension of the covering location problem as a hybrid covering model that utilizes the set covering and maximal covering location problems. The developed model is a multi-period model that considers strategic and tactical planning decisions. Hybrid covering location problem (HCLP) determines the location of the capacitated facilities by using dynamic set covering location problem as strategic decisions and assigns the constructive units of facilities and allocates the demand points by using dynamic modular capacitated maximal covering location problem as tactical decisions. One of the applications of the proposed model is locating first aid centers in humanitarian logistic services that have been addressed by studying a threat case study in Japan. In addition to validating the developed model, it has been compared to other possible combined problems, and several randomly generated examples have been solved. The results of the case study and model validation tests approve that the main hybrid developed model (HCLP) is capable of providing better coverage percentage compared to conventional covering models and other hybrid variants.


2015 ◽  
Vol 10 ◽  
pp. 704-713 ◽  
Author(s):  
Adrián Serrano ◽  
Javier Faulin ◽  
Pablo Astiz ◽  
Mercedes Sánchez ◽  
Javier Belloso

2020 ◽  
Vol 5 (1) ◽  
pp. 24-33
Author(s):  
Angel Olivia ◽  
Harummi Sekar ◽  
Mirna Lusiani

This research is about the household gas network and the purpose is to find out the optimal number and location of the regulator sectors for 6 urban villages in Depok. The problem is solved using Maximum Coverage Location Problem to get the minimum amount of facility with the distance limit of 500 meters. The tool used in this research is AMPL to get optimal solution of the problem. In validating the model, calculations are done using small instances for each urban villages and it resulted that Beji only needs 6 facilities for serve all consumers. The calculation using large instances resulted that number facilities needed to serve 7.515 consumers is 12 from the 19 available facilities. The facilities used are RS B 001, RS B 006, RS B 007, RS B 009, RS BT 01, RS BT 02, RS BT 03, RS BT 04, RS 01, RS 02, RS 04 and RS 06. This means that the available facilities exceed the facilities are be used to serve consumers. This research is expected to assist the development of household gas networks in Indonesia, especially in Depok by increasing the consumers around existing regulator sectors.


2017 ◽  
pp. 45-59 ◽  
Author(s):  
V. Osmakov ◽  
A. Kalinin

The article considers the problems of industrial policy and, accordingly, the industrial development strategy from the standpoint of the challenges facing the industry, the conditions for the adoption of strategic decisions and possible answers - the key directions of state activities. The main principles and directions are analyzed: investment, foreign trade, technological policies, certain aspects of territorial planning, state corporate and social policies. Proposals on the prospective goal-setting and possible results of industrial policy have been formulated.


Author(s):  
Majid A Dehkordi

Although researches in the eco-friendly innovation studies have contributed much to technological development, a limited contribution has been made to the importance of structural concepts, strategic decisions and early stage marketing in the diffusion of innovation. The uniqueness of this research lies in its effort of exploring Toyota’s commercialization strategies for the first generation of its green vehicles, Prius Hybrid and RAV4 EV. Literature is reviewed from both historical and technological perspectives. The Roger’s Diffusion model was used and on the basis on this review, it has been argued that Toyota’s hybrid vehicle commercialization strategy affected this company’s electric vehicle development at least for a decade. The results fill a gap in the literature, particularly in Green vehicles research, development, and marketing.


2020 ◽  
Vol 13 (3) ◽  
pp. 68-85
Author(s):  
D. V. Streltsov

The article analyzes long-term external and internal factors determining the course of development of Russian-Japanese relations in 2019-2020. On the one hand, the anti-Russian component in Tokyo's foreign policy is shaped by its membership in the Security Treaty with the United States and its solidarity with the sanctions policy of the Group of Seven towards Russia. On the other hand, Japan and Russia are both interested interest in political cooperation in creating multilateral dialog mechanisms of international security in East Asia, resolving the nuclear issue on the Korean Peninsula, and easing tensions around territorial disputes in the East China and South China seas. Among the economic factors, the author focuses on the significant place of Russia in the context of Japan's task of diversifying sources of external energy supplies, as well as on Russia's desire to avoid unilateral dependence on the Chinese market while reorienting the system of foreign economic relations from the West to the East. Personal diplomacy of political leaders plays a significant role in relations between Russia and Japan, and, above all, close personal relationships and frequent meetings between Prime Minister Abe and President Putin, which make it possible to partially compensate the unfavorable image of the partner country in the public opinion of both Russia and Japan. Against the background of a deadlock in the Peace Treaty talks which emerged in 2019, the search for a way out of the diplomatic impasse is on the agenda. In the author's opinion, it would be appropriate at the first stage to proceed to the conclusion of a basic agreement on the basis bilateral relations, which would be "untied" from the Peace Treaty. In addition, Russia could stop criticizing Japan for its security policy and show greater understanding of the Japanese initiative in the field of quality infrastructure. In turn, Japan could take a number of strategic decisions on cooperation with Russia and announce them in the Prime Minister's keynote speech. In addition, Tokyo could stop positioning the issue of the peace Treaty as the main issue in relations with Russia, which would allow our countries to "untie" bilateral relations from the problem of border demarcation and focus on their positive agenda.


2020 ◽  
Vol 26 (7) ◽  
pp. 1469-1495
Author(s):  
A.L. Sabinina ◽  
V.V. Sokolovskii ◽  
N.A. Shul'zhenko ◽  
N.A. Sychova

Subject. The article describes the findings of the authors of fundamental strategic decisions on the formation of multifunctional urban complexes, using the housing demand and supply criterion. Objectives. We undertake a comprehensive study aimed at perfecting the methodology for evaluating the options for city infrastructure development at two stages, i.e. strategic, when general targets of feasible commissioning are determined, and current, when parameters of demand for facilities are taken into account. Methods. The study employs methods of expert survey, statistical data processing, predictive and investigative analysis. Results. We explored factors of creating amenities and comfort in residential construction areas, developed an algorithm to calculate the volume of new living space commissioning on the basis of evaluating demands in the Smart City paradigm. Conclusions. The study shows the cost increase depending on the built-up area, number of floors, and the balance between the type of capacity and the number of residents in the quarter (linear relationship).


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