scholarly journals Economic Calculation and Operations Research in Terms of LNG Carriage by Water Transport: A Case Study of the Port of Bratislava

2021 ◽  
Vol 13 (6) ◽  
pp. 3414
Author(s):  
Martin Jurkovič ◽  
Tomáš Kalina ◽  
Ondrej Stopka ◽  
Piotr Gorzelanczyk ◽  
Borna Abramović
Keyword(s):  
Operations Research ◽  
Evaluation Criteria ◽  
Point Of View ◽  
Small Scale ◽  
Second Phase ◽  
Economic Calculation ◽  
Multi Criteria Evaluation ◽  
Unique Approach ◽  
Port Location

The presented manuscript discusses a specific research study examining several variants of liquefied natural gas (LNG) carriage from chosen seaports to the port of Bratislava using the Danube waterway, assessing them using chosen multi-criteria analysis techniques. Two ports in Turkey and one port in Georgia are deemed export terminals. A total of twelve variants are compared, whereby the comparison is carried out based on multiple evaluation criteria defined by a panel of experts who laid particular stress on their importance. An economic calculation is performed in the first phase to assess LNG carriage in all the variants. This represents the very foundation for the multi-criteria evaluation, which is conducted using Multi-Criteria Decision Analysis (MCDA) and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The evaluated variants differ not only in terms of export port location, but also in relation to transport technology. As for the second phase, four distinct technologies in three different scenarios are assessed—specifically, Small-Scale (SS) LNG-C tankers—while two modes of operation (i.e., time-charter, own tanker) and a river-sea LNG tanker with an LNG barge in two versions are considered. The first version considers the use of Marine Gasoil (MGO) fuel, while the second one considers LNG use. The results obtained provide interesting findings, wherein two out of three applied methods prefer the same transport option. Thus, it can be stated that our study presents a unique approach by comparing different scenarios of LNG distribution as a commodity inland along the river Danube, specifically to Central Europe, from a variety of standpoints. The manuscript evaluates carriage using traditional MGO fuels as well as alternative LNG fuels, and also brings a comparison from a technological point of view.

scholarly journals Designing a model to determine the preferred Islamic contract for a bank facilities applicant

2018 ◽  
Vol 7 (2.2) ◽  
pp. 21
Author(s):  
Marzieh Jahani ◽  
Parastoo Mohammadi
Keyword(s):  
Evaluation Criteria ◽  
Industrial Sector ◽  
Point Of View ◽  
Second Phase ◽  
Optimization Approach ◽  
Compromise Solution ◽  
Decision Matrix ◽  
Analytic Hierarchy ◽  
The Cost ◽  
Hierarchy Process

This paper aims to present a model to determine the preferred Islamic contract for the bank facilities applicant in the industrial sector. For this purpose we use a consolidated method which includes the compromise solution multi-criteria optimization in the first phase, and the calculation of the cost of financing for the applicant of facilities in the second phase. Afterwards, by using the output of the both-phase, the preferred Islamic contract based on the combinational criterion has been determined for the applicant of the facilities. According to the fact that in the financing of the projects, in addition to the criteria related to the cost of financing, the qualitative criteria are also important, so both the qualitative and quantitative criteria have been considered in this research. In this study, we used four widely applied Islamic contracts (Jo’aalah Instalment sales, Hire purchase, Participation). The assessment criteria of the Islamic contracts have been extracted in the form of a questionnaire based on the previous studies and the expert’s point of view. In the first phase, the Analytic Hierarchy Process (AHP) has been used in order to determine the weights of the evaluation criteria of the Islamic contracts; and, in order to select an appropriate contract for the applicant, the compromise solution multi-criteria optimization approach (VIKOR), which is based on the decision matrix, was used. In the second phase, the cost of financing from the bank was estimated for the applicant of the facilities in the four contracts. Finally, the obtained results of the qualitative questionnaire and the cost of financing from the bank have been combined; thus, the preferred contract for the applicant of facilities has been determined based on a combinational criterion.

scholarly journals Perceptions and Role of Tourist Destination Residents Compared to Other Event Stakeholders in a Small-Scale Sports Event. The Case of the FIS World Junior Alpine Ski Championships 2019 in Val di Fassa

2019 ◽  
Vol 11 (24) ◽  
pp. 6909 ◽  
Author(s):  
Filippo Bazzanella
Keyword(s):  
Sustainable Development ◽  
Qualitative Method ◽  
Point Of View ◽  
Small Scale ◽  
Tourist Destination ◽  
The Sustainable Development ◽  
Sports Events ◽  
The World

The role of stakeholders is critical in addressing challenges with or problems in small-scale sports events. The purpose of this study is to investigate the perceptions of the event stakeholders toward sports events, with a particular focus on the role of residents in a tourist destination. The goal is to understand their perceptions with respect to different topics and in particular to the sustainable development of the tourist destination. This case study focuses on the World Junior Alpine Ski Championships 2019 in Trentino Val di Fassa—Italy (JWC2019). Applying a mixed methodology, the study analyzes the stakeholders during the sports event (quantitative method) and the point of view of the residents in their stakeholder role after the sports event (qualitative method). The main findings of this study show that residents differ from tourists and other stakeholders in terms of their perception of the event and its strengths. But when it comes to the perceptions regarding the territory, the groups of stakeholders analyzed do not seem to have systematically different opinions. Some paradoxes do, however, emerge with respect to the residents’ awareness of their role as stakeholders and the implications of the event with respect to sustainability and how such an event may underpin a concept of sustainable development for the territory as a whole.

scholarly journals Optimal Maintenance for Degrading Assets in the Context of Asset Fleets-A Case Study

2020 ◽  
Vol 6 ◽  
Author(s):  
Frederik Schulze Spüntrup ◽  
Giancarlo Dalle Ave ◽  
Lars Imsland ◽  
Iiro Harjunkoski
Keyword(s):  
Decision Making ◽  
Gas Production ◽  
Academic Community ◽  
Point Of View ◽  
Mixed Integer ◽  
Optimal Decision ◽  
Small Scale ◽  
Computational Point ◽  
Optimal Maintenance

Decision-making for maintenance of engineering assets is a common challenge in the process industry due to ongoing degradation. With an increasing company-size, this problem becomes more complex from an operational and computational point of view. This paper introduces a case study to the academic community that represents the problem of optimal decision-making in the context of large asset fleets. The case study poses a large fleet of offshore compressors for gas production with a specific network structure. Two exemplary discrete-time mixed integer linear programming models following the Resource Task Network framework are presented. They address asset deterioration due to effects such as fouling by suggesting specific maintenance actions as a set of different countermeasures. Novel enumerator formulations are a computationally efficient and extendable way to model the various degradation types. Results show the benefit of optimal maintenance in the application to asset fleets. The decision-support that is delivered by the scheduling and planning approach helps to determine which maintenance type should be conducted and at what time. The paper demonstrates the benefits of optimal (long-term) schedules for maintenance, but indicate at the same time the need for efficient algorithms in the context of large asset fleets, in contrast to common industrial case studies that are rather small-scale.

scholarly journals Chinese Migrants in Italy: A Socio-economic Portrait

2020 ◽  
Vol 13 (1) ◽  
pp. 48-62
Author(s):  
E. A. Maslova ◽  
R. Loreto Cecioni
Keyword(s):  
Textile Industry ◽  
Home Country ◽  
Point Of View ◽  
Small Scale ◽  
Italian Economy ◽  
Push And Pull Factors ◽  
Chinese Migrants ◽  
Chinese Overseas ◽  
Push And Pull

Italy is one of the European countries hosting the largest number of Chinese immigrants. In the early 1980’s, the first Chinese new migrants came to Italy, where they would find an employment in the Italian textile industry. Since then, Chinese overseas have played an important role in the field of fashion, a sector of the Italian economy with a high demand in production and manual work. Petty trading and small-scale enterprises are also representations of the Chinese population’s activity in Italy. This article provides statistics concerning the Chinese migrants as an economically active person and the activities of the Chinese community in Italy as a whole.The authors analyze the phenomenon of Chinese labour migration to Italy from the point of view of the “push and pull factors” migration theory. This article illustrates the main factors leading Chinese citizens to leave their home country and shift to Italy, where China turns out to be the point of origin for one of the largest communities of extra-EU immigrants. It is shown that for the Chinese, Italy is a destination country, which is largely due to the already existing migrant network. As a case-study in the frame of this analysis, the authors take Prato (a municipal township located in Tuscany), renowned for hosting the largest Chinatown in Europe (so called “Chinese exclave”).

scholarly journals Evaluation of Sustainability Determinants of Small Farming Systems via Participatory Modeling and Fuzzy Multi-Criteria Processes: The Case Study of Heliciculture in Greece

2021 ◽  
Vol 2 ◽  
Author(s):  
Marianthi Hatziioannou ◽  
Konstantinos Kokkinos
Keyword(s):  
Investment Decision ◽  
Farming Systems ◽  
Fuzzy Cognitive Map ◽  
Small Scale ◽  
Second Phase ◽  
Low Carbon ◽  
Participatory Modeling ◽  
Modeling Methodology ◽  
Investment Decision Making

Feasibility and sustainability of small-scale farming systems are the most critical factors that determine future investments of urban agro-farming while promoting eco-systematic livelihood development and biodiversity. The determination and the diversification of the ambivalent and heterogeneous factors that affect the investment decision making of small farming systems is studied in this work via the application of participatory modeling methodology of regional stakeholders. Defuzzification of the participants' categorical feedback is succeeded applying Fuzzy Analytical Hierarchy Process (F-AHP) to set the pairwise weight matrix of the determinants suggested by the stakeholders. At a second phase, an innovative Fuzzy Cognitive Map (FCM) model is utilized to determine the weighted inter-causalities between all agricultural, environmental, and socio-economic criteria from the F-AHP output. Apart from the concept circumscription, we use the FCM to provide an in-depth scenario analysis including steady state and dynamic evaluation of driver concepts to receiver concepts in the model. The methodology is applied for the case study of heliciculture farming systems in Greece. Results show that sustainability is affected primarily by agricultural and inventory factors and secondarily by social and environmental factors identifying such cradle-to-farm gate life cycle assessment to be of low carbon footprint.

scholarly journals KAJIAN BISNIS SOSIAL PEDAGANG PERANTARA DALAM UPAYA PENGEMBANGAN HORTIKULTURA DI JAWA BARAT

2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Anne Charina, Gema Wibawa Mukti, Rani Andriani
Keyword(s):  
Market Segmentation ◽  
Consumer Demand ◽  
Global Market ◽  
Point Of View ◽  
Small Scale ◽  
Social Business ◽  
The Social ◽  
Business Pattern ◽  
Agricultural Supply

Currently, 90% of Indonesian small scale agribusiness actors arebeing faced to the global market era. They are also facing a fast growthrate of global market and the market segmentation phenomenon whichexpects positive changes and adaptations in the agricultural supply chain.The method that used in this study is case study. The study location wasbeing selected based on its potential of horticulture product.The study showed that currently the traders have changed theirbusiness pattern from a pure business to a business which relies more onthe partnership with the farmers. This phenomenon was being emerged bythe consumer demand which expects the continuity of supply.From the Social Business aspect point of view, generally thetraders do the partnership system because of their needs of continuity ofsupply from the farmers, not based on helping the farmers. The result ofweighting showed the total score placed between 28-32,5 which means itcan be categorized as a semi-social business.Overall, the study showed that currently the changes are happeningin the traders business pattern, thus, it gives hopes to the agriculturaldevelopment in Indonesia especially for horticulture products of smallscale stakeholders.Keywords: Global market, traders, horticulture, social business.

scholarly journals Energy and Ecological Evaluation of ORC Based Geothermal CHP Plant in Poland – A Case Study

2019 ◽  
Author(s):  
Tomasz Mróz ◽  
Weronika Grabowska
Keyword(s):  
Carbon Dioxide Emission ◽  
Evaluation Criteria ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Energy Performance ◽  
Primary Energy ◽  
Point Of View ◽  
Operating Conditions ◽  
Performance Criteria

The paper presents the results of energy and environmental analysis of geothermal CHP plant operation in Polish conditions. As the most favorable, for the geothermal conditions prevailing in Poland, the variant of CHP plant based on Organic Rankine Cycle (ORC) has been taken into consideration. As the case study the existing geothermal well located in the town of Konin in the Wielkopolska voivodship has been chosen. The conceptual design of CHP plant has been proposed and evaluated from energy and environmental point of view. As energy performance criteria the non-renewable primary energy consumption has been chosen. In case of environmental performance carbon dioxide emission has been taken as evaluation criteria. The analysis has been performed for different operating conditions and three working fluids.

scholarly journals Sponsorship’s Financial Sustainability for Cultural Conservation and Enhancement Strategies: An Innovative Model for Sponsees and Sponsors

2021 ◽  
Vol 13 (16) ◽  
pp. 9070
Author(s):  
Luigi Dolores ◽  
Maria Macchiaroli ◽  
Gianluigi De Mare
Keyword(s):  
Financial Analysis ◽  
Point Of View ◽  
Financial Sustainability ◽  
Second Phase ◽  
Architectural Heritage ◽  
Final Phase ◽  
Innovative Model ◽  
Cultural Conservation ◽  
Selection Of

The topic of the paper is sponsorship for the requalification/conservation of historical-architectural heritage. In the literature, there are many models for evaluating the financial efficiency of sponsorship from the point of view of the sponsor (mostly in the sports field), but none of these jointly support both the sponsor and the sponsee in the selection of financially sustainable cultural sponsorships. Trying to reduce this gap, an innovative model is proposed for estimating the profitability of cultural sponsorship. The model consists of three phases. In the first, which consists of the financial analysis of the investment for the sponsee, the minimum amount that the sponsee can request from the sponsor is established. The second phase analyzes the financial performance of potential sponsors, estimating the optimal sponsorship budget that maximizes profits. In the final phase, where the results of the two analyses are compared, the sponsee eventually reformulates his offer and decides which company to sign the contract with. The model is tested through a case study: the sponsorship of the restoration of the Don Tullio Fountain in Salerno (Italy). It is assumed that two companies are interested in sponsorship. The results show that the investment is financially sustainable for both companies.

scholarly journals Crushing method selection for non-centrifugal sugar production by FAHP–ELECTRE I

2020 ◽  
Vol 15 (3) ◽  
pp. 328-335
Author(s):  
M Srinivas ◽  
B Sravya ◽  
S Prudhvi Raj ◽  
K S Reddy
Keyword(s):  
Selection Process ◽  
Evaluation Criteria ◽  
Small Scale ◽  
Process Unit ◽  
Analytical Hierarchical Process ◽  
Multi Criteria Evaluation ◽  
Production And Consumption ◽  
Juice Extraction ◽  
Electre I ◽  
Selection For

Abstract The non-centrifugal sugar (NCS) industry is one of the oldest small-scale cottage industry in India, whose technological features are not changed for several decades due to which the production and consumption of NCS has reduced significantly. One way to attend this problem is to select the best and sustainable methods among the existing technologies at various stages in the production process. In the production of NCS, juice extraction is the primary and essential process. The present work gives an insight to a logical procedure for selecting a suitable and sustainable juice extraction method for improving the NCS production using multi-criteria evaluation (MCE) technique. The selection process is based on 11 evaluation criteria covering various sustainable factors viz. technological, economic and environmental factors. Fuzzy analytical hierarchical process (FAHP) integrated with elimination et choix traduisant la realité method is the MCE technique considered for selecting the most appropriate crushing method among five alternatives. The results indicated that the power-operated single horizontal crusher is the most suitable and sustainable crushing method for improving the production rate of NCS. The same technique can be used for the other process unit of the NCS production to improve the productivity and sustainability of NCS.

scholarly journals Waste Reduction for Green Service Supply Chain—the Case Study of a Payment Service Provider in Iran

2020 ◽  
Vol 12 (5) ◽  
pp. 1833 ◽  
Author(s):  
Ali Aghazadeh Ardebili ◽  
Elio Padoano ◽  
Najmeh Rahmani
Keyword(s):  
Supply Chain ◽  
Service Provider ◽  
Evaluation Criteria ◽  
Point Of View ◽  
Waste Reduction ◽  
Sustainable Supply Chain ◽  
Sustainable Supply Chains ◽  
Thermal Paper ◽  
Topsis Technique

Analyzing and designing how service is provided to the customer is crucial for sustainable supply chains in services. In this respect, there can be barriers to applying sustainable improvements due to regulations, practices and customer culture. This study is focused on finding the waste produced by the service of one of the biggest payment service provider (PSP) companies in Iran and how to meet the essential needs of the sustainable supply chain. It has been observed that using thermal papers as a biohazardous material causes environmental problems and even it is hazardous to mix them with normal paper waste in the recycling process. Moreover, preventive maintenance of the thermal printers itself causes a huge number of unnecessary shuttles between the customers and service suppliers, which represents a source of CO2 emission, traffic—especially in the capital—and high maintenance costs for the company. Three main alternatives to the thermal paper receipt were analyzed and ranked by means of a TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) model, which employed the sustainability pillars and the technical point of view as evaluation criteria. The priorities against the set of criteria were obtained by means of surveys, which targeted a sample of customers and a pool of experts. The results highlighted that customers’ habits and legislation are the most important barriers to the transition to a more sustainable service.

Sign in / Sign up

Export Citation Format

Share Document