Analysis of the Efficiency of Port Container Terminals with the Use of the Data Envelopment Analysis Method of Relative Productivity Evaluation

Wiśnicki, Bogusz; Chybowski, Leszek; Czarnecki, Maksymilian

doi:10.1515/mspe-2017-0001

Cited by 17 publications

(12 citation statements)

References 10 publications

(10 reference statements)

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“…Therefore, it is important to select the correct analysis method and the right tools. However, in many cases, this depends on efficiently taking advantage of the available (conventional) resources without affecting the efficiency and quality of the process [5]. Management practices have considerable effects on the contribution and energy efficiency of crop production systems [6]; thus, energy demand in agriculture is classified according to the energy inputs of each production system [7,8].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Use of Energy in the Production of Sweet Sorghum (Sorghum Bicolor (L.) Moench) under Different Production Systems

et al. 2019

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The growing global demand for energy and the reduction of energy based on oil are driving the search for new sources of energy that are environmentally friendly. To achieve this goal, it is also necessary to optimize the related processes. In this study, the behavior of the agronomic parameters of, and the energy invested in, production systems based on a new variety of sweet sorghum (Sorghum bicolor (L.) Moench) called ROGER were determined to define the optimal production conditions. To this end, three methods of tillage (minimum, traditional, and traditional tillage with rupture of the plow layer) and three types of fertilizers (inorganic, organic, and without fertilizer) were established, and to estimate the energy efficiency, the inputs and the energy outputs of each system were considered. The traditional tillage with breaking of the plow layer and the organic fertilizer showed the highest values of plant height (2.45 and 2.39 m, respectively); total fresh weight of the plant (51.66 and 50.77 t·ha−1, respectively), of the stem (42.7 and 41.05 t·ha−1, respectively), and of the juice (21.89 and 22.57 t·ha−1, respectively); the volume of the juice (20,783.12 and 22,529.59 L·ha−1, respectively); and Brix degrees (16.04% and 15.01%, respectively). However, the highest energy efficiency was registered in the production system that used the minimum tillage, with a value of 15.11, as well as when no fertilizer was applied with 18.68.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Use of Energy in the Production of Sweet Sorghum (Sorghum Bicolor (L.) Moench) under Different Production Systems

et al. 2019

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“…In addition it is beneficial to use the presented methodology in assessing the development possibilities of complex technical systems (Chybowski, 2009a(Chybowski, , 2009b(Chybowski, , 1011, in the situation where it is necessary to use multi-aspect assessments cf. (Chybowski and Gawdzińska, 2016a, 2017cWiśnicki et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Use of Triz SU-Field Models in the Process of Improving the Injector of an Internal Combustion Engine

Chybowski

2018

Multidisciplinary Aspects of Production Engineering

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The article describes a method for analyzing and solving problem situations with the use of Su-Field models and 76 inventive standards. These tools are part of the “Theory of Inventive Problem Solving”. The author has presented the basic concepts of Su-Field models, including in the compilation of the most commonly used substances their fields and types of interactions in Su-Field models. The inventive standards have also been presented and grouped. Attempts have been made to solve two undesirable situations that occur during the operation of a complex technical system, which is the fuel injector of the self-ignition engine. Problem situations related to insufficient impact were modelled - too low tightening of the injector spring, and negative (harmful) interaction - erosive wear of the holes in the atomizer nozzle. Using the inventive standards of Class-1 and Class-2, general solutions to these problems have been found. After the transformation, exemplary detailed ways of solving the aforementioned problems have been presented in order to improve the design of the injector for these models. A summary and comments on the applicability of the presented methodology, regarding such complex technical systems, have also been presented.

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“…Cullinane, Song, Ji, and Wang (2004) applied DEA-CCR and DEA-BCC and the software DEA-Solver-PRO 3.0 to evaluate the efficiency of European ports. Wiśnicki, Chybowski, and Czarnecki (2017) applied the CCR DEA model to evaluate container terminals in Europe based on the technology available for handling cargo employing a software; Wu and Goh (2010) showed the efficiency in emerging markets applying the A&P 1 model besides DEA BCC and CCR models. Yuen, Zhang, and Cheung (2013) studied the efficiency of Chinese ports, taking into consideration foreign investments.…”

Section: Ports Efficiency With Deamentioning

confidence: 99%

Assessing the environmental management and operational efficiency of Brazilian public ports that export soybeans

et al. 2019

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Using Data Envelopment Analysis (DEA), seven public ports in Brazil that trade soybeans had their environmental management assessed. Data regarding the management of sewage, solid waste, and of the presence of synanthropic fauna in public ports was used along with the port environmental index created by ANTAQ in the analysis. The results show that the quality of the environmental management needs to be addressed, so the efficiency of the system can be reached, and that DEA can be a useful tool.

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Analysis of the Efficiency of Port Container Terminals with the Use of the Data Envelopment Analysis Method of Relative Productivity Evaluation

Cited by 17 publications

References 10 publications

Evaluation of the Use of Energy in the Production of Sweet Sorghum (Sorghum Bicolor (L.) Moench) under Different Production Systems

Evaluation of the Use of Energy in the Production of Sweet Sorghum (Sorghum Bicolor (L.) Moench) under Different Production Systems

Use of Triz SU-Field Models in the Process of Improving the Injector of an Internal Combustion Engine

Assessing the environmental management and operational efficiency of Brazilian public ports that export soybeans

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