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160 results for “Economic Cost”
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Review ArticleOpen accessIn the abstractAbout Supersonic Flight and Mach 3 FlyingRelly Victoria Virgil PetrescuAerospace-BAC Concorde was a supersonic passenger aircraft. It was the result of a government treaty between the French and British governments, combining the efforts of Aerospace and British Aircraft Corporation. With only 20 aircraft built in total, the cost of the development phase was a major economic failure. In addition, Air France and British Airways were subsidized by the government … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 3 · 28 Aug 2020 · 8,926 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Environmental Change on Human Health: A Descriptive Economic AnalysisUttam Paudel, Shiva Raj Adhikari, Krishna Prasad PantEnvironmental dilapidation in developing countries upsurges the incidence of human diseases leading to societal impoverishment in the disease rampant areas. Literatures on economic evaluation of effects of environmental changes on human health are scanty. This paper descriptively reconnoiters major environmental changes, spread of diseases, associated household cost including health costs and finally benefits from the improvement of environment through household … …American Journal of Environmental Sciences, Vol. 14, Issue 6 · 7 Jan 2019 · 8,200 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Technical, Economic and Environmental Evaluation Study of Utilising Fixed, Single and Dual-Axis Solar Photovoltaic Systems in Boubyan and Failaka Islands in KuwaitDr. Abdulla AL-RashidiImplementing renewable energy technologies, such as solar energy, is an important step towards meeting the increasing demand for electricity in Kuwait. This would be a very helpful way of minimising the negative environmental impacts of conventional power plants. This study reports on the results of a comprehensive technical, environmental and economic evaluation of the use of a grid-connected solar photovoltaic … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 4 · 9 Nov 2019 · 7,603 accessesView PDFCite
Research ArticleOpen accessIn the abstractIncreasing Resistance and Productivity of Broiler Chickens through ProbioticsАlpeisov Shokhan, Myktybayeva Raya, Kozhakhmetova Zubaira et al.A series of experiments were conducted at the poultry farm "Sary-Bulak" in the Almaty region in 2023. The objective was to determine the effect of a probiotic supplement, developed based on the connection of strains of lactic acid bacteria, on live weight, average daily gain, livestock safety, feed costs per unit of live weight gain, meat quality of carcasses and … …OnLine Journal of Biological Sciences, Vol. 25, Issue 1 · 7 Oct 2024 · 4,857 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of a Phytomineral Complex and an Enzyme Preparation on the Absorption of Nutrients and the Energy Balance of Calves' DietEvgeniia Erenko, Aleksandr Ovchinnikov, Marat Aubakirov et al.Cost-effective animal husbandry directly depends on the correct breeding of replacement young animals using diets corresponding to the feeding rate for all nutrition elements of the detailed system. Critical to these diets are biogenic elements, pivotal in enzymatic reactions and immune defense. However, specifics on enhancing nutrient absorption through dietary supplements remain underexplored, particularly in the context of calves' preweaning … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 12 Jun 2024 · 4,592 accessesView PDFCite
Research ArticleOpen accessIn the abstractManagement of Renewable Energies and Environmental ProtectionRelly Victoria Virgil Petrescu, Raffaella Aversa, Antonio Apicella et al.The purpose of this project is to present an overview of renewable energy sources, major technological developments and case studies, accompanied by applicable examples of the use of sources. Renewable energy is the energy that comes from natural resources: The wind, sunlight, rain, sea waves, tides, geothermal heat, regenerated naturally, automatically. Greenhouse gas emissions pose a serious threat to climate … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 4 · 23 Nov 2017 · 8,106 accessesView PDFCite
Research ArticleOpen accessIn the abstractHarvesting Chaetoceros Calcitrans and Nannochloropsis sp. Via ElectroflocculationNitin Raut, Dinesh Kumar Saini, Reena VaidyaThe efficiency of harvesting the algal biomass plays a dominant role in the production of biodiesel from microalgae. On a commercial scale the choice and efficiency of the harvesting techniques may be a deciding factor for economic viability of this renewable energy source. The highly energy intensive centrifugation and filtration process are followed by flocculation for harvesting microalgae. Therefore the … …American Journal of Applied Sciences, Vol. 14, Issue 9 · 12 Apr 2017 · 7,719 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimal Subsurface Appraisal: A Key Link to the Success of Development Projects-Few ExamplesVirendra Singh, Ivan Yemez, Elena Izaguirre, Alvaro RaceroDuring exploration and production phases, the life of a hydrocarbon field can be distinguished by five main stages: Exploration, appraisal, development, production and abandonment. Of particular interest is the appraisal stage, where billions of dollars are spent across the oil and gas industry on data gathering activities with a view to reducing subsurface uncertainties towards optimizing reservoir development and management. … …American Journal of Applied Sciences, Vol. 14, Issue 2 · 13 Jan 2017 · 8,516 accessesView PDFCite
Research ArticleOpen accessIn the abstractVegetative Propagation by Root Segments Cuttings of Sclerocarya Birrea (A. Rich.) Hochst: Effects of Substrate and Mycorrhizal Inocula on the Ability to Root CuttingsAbdoulaye Herbert, Tsobou Roger et al.Sclerocarya birrea (A. Rich.) Hochst is one of the woody plants of the soudano-Sahelian zones, with great socioeconomic importance. The local populations over-exploit this species for their daily socio-economic needs and this endangered its durability. The objective of this study was to contribute to the domestication of this species by the low-cost technique of Root Segments Cuttings (RSC). The substrates … …American Journal of Agricultural and Biological Sciences, Vol. 17, Issue 1 · 23 Aug 2022 · 6,522 accessesView PDFCite
EditorialOpen accessIn the abstractAn Opportunity for the Agricultural Sector: The Renewable Energy SourcesRiccardo Testa, Salvatore TudiscaToday, among the most important issue for energy decisions by policymakers, there are security challenges and environmental impacts on climate change and economic aspects. Since the seventies, in fact, global warming and environmental issues have had an increasing importance in international debate, attracting the attention of several scientific studies (Landi and Benelli, 2016). Many of these studies denoted that over … …American Journal of Agricultural and Biological Sciences, Vol. 11, Issue 3 · 6 Sep 2016 · 8,092 accessesView PDFCite