Abiodun Elijah Obayelu, Omotoso Oluseye Ogunmola and Olusegun Kayode Sowande
frontier approach. American Journal of Experimental Agriculture 2(3): 382 - 394.
Ajala M. K., Osuhor S. A. (2004): Economicanalysis of returns and cost structure in swine production in Kaduna State, Nigeria. Tropical Journal of Animal Science 7(11): 11 - 18.
Ajala M. K. (2007): Analysis of factors affecting the management of pigs in Kaduna State. Nigeria. Agricultural Journal 2(2): 343 - 347.
Ajala M. K., Adesehinwa A. O. K., Mohammed A. K. (2007): Characteristics of smallholder pig production in Southern Kaduna area of
Gökhan Coşar, Mirparham Pooyanfar, Ehsan Amirabedin and Hüseyin Topal
18. Quoilin, S., Lemort, V., Technological and economical survey of organic rankine cycle systems, 5TH EUROPEAN CONFERENCE ECONOMICS AND MANAGEMENT OF ENERGY INDUSTRY , 2007, Portugal.
19. TARIM GRUP Makina Pazarlama ve Dış Ticaret Ltd. [Accessed 10.09.2013] Available: http://www.tosuntarim.com
20. Sivrioğlu, M, Yurdakul, M., İlbilgi, L., İç, Y. T., A comparative economicanalysis of an absorption cooling system using geothermal energy against steam compression cooling systems, TÜBAV Bilim vol. 2, 2009, P. 26-36.
The performance and economic simulation and modeling are crucial for accurate and rapid designing, construction, and forecasting future economic needs of municipal wastewater treatment plants (MWWTPs). In this study, combined nitrifying trickling filter/activated sludge (NTF/AS) process was suggested for the modernization of a MWWTP and the performance and economics of MWWTPs based on the combined TF/AS process and combined NTF/AS process were analyzed and compared. In real, the performance, total project construction, total operation labor, total maintenance labor, total material, total chemical, total energy, and total amortization costs of these proposed MWWTPs were calculated and compared. Under the used design criteria and operational conditions in this study, the project construction cost of the MWWTP based on TF/AS was 15.25 % higher than that of the MWWTP based on NTF/AS. Also, MWWTP based on NTF/AS was cost effective and the material and amortization costs for both plants were higher in comparison with the operation, maintenance, energy, and chemical costs. It is necessary to note that this study is a computer simulation for a case and drawing general conclusions only on the basis of this simulation may be insufficient.
Programming Combined with Genetic Algorithm, Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, Volume 2, Waikoloa, the USA, May 2006.
WIES, R. W.—JOHNSON, R. A.—AGRAWAL, A. N.—CHUBB, T. J.: Simulink Model for EconomicAnalysis and Environmental Impacts of a PV With Diesel-Battery System for Remote Villages, IEEE Transactions on Power Systems 20 No. 2 (May 2005), 692-700.
KYOUNGSOO RO—RAHMAN, S.: Two-Loop Controller for Maximizing Performance of a Grid-Connected Photovoltaic
., Ose O.O. (2013): Profitability Analysis of Yam Production in Ika South Local Government Area of Delta State, Nigeria. Journal of Biology, Agriculture and Health 3(2): 118-130.
Olorunsanya E. O., Fakayode S. B., Babatunde R. O., Orebiyi J. S., Adejumolu T.T. (2009): Efficiency of Resources Used in Yam-Based Cropping Systems in Ekiti State. Global Approaches to Extension Practice 5(2):45-53. Available online at www.ajol.info/index.php/gaep
Olorunsanya E. O., Akindejuoye D. S., Sule B. A., Olayinka J.A. (2013): EconomicAnalysis of Cassava Processing into
Background and Purpose: The sugar beet is the main field crop used for sugar production in the temperate climatic zone. Since investment in sugar beet industry are long term and ireversible the decision support and economic analysis are required in order to maximise investment returns.
Methodology: A system dynamics methodology was chosen to model the impacts of regional sugar factory investments. We present the basic concepts of system dynamics (SD) models and their development in the case of sugar beet production and processing systems. Sugar beet economics are also analyzed using the static technological economic simulation model.
Results: The simulation provides answers to strategic questions related to the total sugar beet production and processing system and will be used for the simulation of different scenarios for sugar production and their impact on economic and environmental parameters at an aggregate level. Furthermore, the feasibility analysis of sugar beet production revealed that at the current price and intensity levels (yields), we can expect profitable sugar beet production for both white sugar and ethanol.
Conclusion: Preliminary results show that under expected production parameters the sugar beet processing and production would be economically feasible.
Olegs Kochukov, Anna Mutule, Zigurds Krishans and Irina Oleinikova
Model for Technical-Economic Analysis of ENTSO-E and IPS/UPS Power System Optimal Interconnection Concepts
This paper considers the analysis of large-scale power system optimal interconnection concept as well as description of the model for evaluation of its costs and benefits. Paper contains the method for technical-economic analysis of different scenarios of interconnection of two world largest power systems - ENTSO-E and IPS/UPS. The research has shown that developed model is capable to make deep analysis and is ready for calculation of interconnection links optimal locations, transmission capacities and interconnection type.
The article raised issues related to the design and execution of low-energy objects in Polish conditions. Based on the designed single-family house, adapted to the requirements of the National Fund for Environmental Protection and Water Management (“NF40” standard), the tools to assist investment decisions by investors were shown. An economic analysis and a multi-criteria analysis were performed using AHP method which had provided an answer to the question whether it is worthwhile to bear higher investment costs in order to adjust to the standards of energy-efficient buildings that fulfil a minimal energy consumption's requirements contained in Polish law. In addition, the variant of object that had optimal characteristics due to the different preferences of investors was indicated. This paper includes analysis and observations on the attempts to unify that part of the building sector, which so far is considered to be personalized, and objects in accordance with the corresponding idea are designed as “custom-made”.
Agata Pszczółkowska, Zdzisława Romanowska-Duda, Wiktor Pszczółkowski, Mieczysław Grzesik and Zofia Wysokińska
The objective of this article is the conducting of an analysis of theproduction of selected energy plants that are already a basic source ofagrobiomass in Poland. The analysis looks at environmental aspects andproduction conditions for biomass designated for energy for the Virginia mallow(Sida hermaphrodita), common osier (Salix viminalis), silver-grass (Miscanthusx giganteus), and switchgrass (Panicum virgatum). What is presented is aneconomic analysis of the production of selected energy plants, taking intoaccount the costs of establishing plantations and their cost effectiveness.Moreover, logistic strategies for the delivery of biomass intended to securecontinuous production of renewable energy as a part of sustainable developmentis signaled.
Linda Brīdiņa, Angelika Krūmiņa, Oļegs Šuba, Vinita Cauce, Indulis Vanags and Ludmila Vīksna
Sepsis is widespread among hospitalised patients worldwide. In fact, severe sepsis and septic shock is a major cause of patient admission and mortality in intensive care units and the difficulty in diagnosing the initial stage of the disease is a major obstacle to the reduction of mortality from sepsis. Retrospective analysis of medical records of 72 patients was carried out within the framework of the study. The study included patients of both sexes and all ages, who were hospitalised at the stationary “Gaiļezers” of the Rīga East Clinical University Hospital from 2011 to 2014. The study aim was to determine the clinical course of treated septic patients and conduct a pharmaco-economic analysis. In the course of the disease, almost half of the patients - 34 (48.6%) showed development of septic shock. Mortality in these patients exceeded a half (60.0%; 21 patients). Artificial lung ventilation during hospitalisation was received by 43 (59.7%) of patients. Artificial lung ventilation had been required in a significantly larger number of cases in the dead patient group (75%, p = 0.01). The average costs per one patient day (including bed-day price and manipulation costs) was 383 euros. Septic shock was associated with high mortality. Severe sepsis is an expensive diagnosis, as the average cost of one patient exceeds costs of other departments by 4.5 times.