Relevant bibliographies by topics / Land Equivalent Ratio

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Land Equivalent Ratio'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Land Equivalent Ratio"

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Malo, Khati, RK Samnotra, Satesh Kumar, et al. "Land equivalent ratio as influenced by intercrops in cauliflower (Brassica oleracea var. botrytis)." Agriculture Association of Textile Chemical and Critical Reviews 13, no. 1 (2025): 159–63. https://doi.org/10.21276/aatccreview.2025.13.01.158.

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Riley, Janet. "Examination of the Staple and Effective Land Equivalent Ratios." Experimental Agriculture 21, no. 4 (1985): 369–76. http://dx.doi.org/10.1017/s0014479700013193.

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SUMMARYTwo extensions to the Land Equivalent Ratio (LER) concept, the Effective LER and the Staple LER, are evaluated for an intercrop of two species. The use of different standardizing sole-crop yields in the Effective LER equation is emphasized for the formation of different comparisons between intercrop and sole-crop yields. The Staple LER for different standardizing sole-crop yields is introduced. The equivalence of the Staple and Effective LERs under certain conditions is shown and illustrated.
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Ekaka-A, E. N., N. E. S. Lale, and C. C. Wokocha. "The Land Equivalent Ratio and Its Mutualistic Implications: Computational Approach." IOSR Journal of Mathematics 10, no. 4 (2014): 82–85. http://dx.doi.org/10.9790/5728-10448285.

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Samrin, Samsul, Syamsuddin Millang, Ridwan, and M. Daud. "Land Productivity and Land Equivalent Ratio of Agroforestry System in Marena Customary Forest, Enrekang Regency, South Sulawesi Province, Indonesia." Jurnal Sylva Lestari 12, no. 2 (2024): 532–48. http://dx.doi.org/10.23960/jsl.v12i2.877.

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Applying agroforestry system in the customary forest area plays a significant role in increasing the productivity of the community’s land because it will increase the economic value and welfare of the customary community. This study aims to analyze the agroforestry system’s land productivity and land equivalent ratio in the Marena Customary Forest (MCF) area, Enrekang Regency. This research used a survey method involving observation, questionnaires, and interviews with sample respondents who owned land and applied agroforestry systems in the MCF. Data obtained from interviews and field observa
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Dadarwal, R. S., Vishal Ahlawat, Kautilya Chaudhary, M. K. Jat, and Kavita . "Moisture Conservations Options for Boosting System Productivity under Pearl Millet: Cluster Bean Strip Intercropping." International Journal of Plant & Soil Science 35, no. 2 (2023): 66–73. http://dx.doi.org/10.9734/ijpss/2023/v35i22760.

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The present investigation was carried out to study the Moisture conservations options for boosting system productivity under Pearl millet: Cluster bean strip intercropping under aberrant weather situations of south-western Haryana. The experiment was laid out in randomized block design comprising nine treatments replicated thrice. Pearl millet: Cluster bean strip cropping (6:3) under deep summer ploughing recorded maximum land equivalent ratio (1.37) and pearl millet equivalent yield (29.30 q/ha) over conventional and straw mulching practices. While, the highest gross return Rs. 50134, net ret
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Hussain, Iqtidar, Shakeel Ahmad Jatoi ., Obaidullah Sayal ., and Muhammad Safdar Balo . "Green Fodder Yield and Land Equivalent Ratio of Sorghum-Legume Association." Pakistan Journal of Biological Sciences 3, no. 1 (1999): 175–76. http://dx.doi.org/10.3923/pjbs.2000.175.176.

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HEFNY, Yaser A.A. "Evaluation of intercropping sesame in different planting densities with peanut grown within orange trees under deficit irrigation." Moroccan Journal of Agricultural Sciences 5, no. 1 (2024): 16–24. https://doi.org/10.5281/zenodo.10774718.

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A field experiment was carried out during 2018 and 2019 summer seasons to test the interaction effect between two deficit irrigation treatments (DI1=100% ETo, DI2=80% ETo), plus control (FI= 120% ETo) and three planting densities (PD) of intercropped sesame (CS1=20% PD, CS2=40% PD, CS3= 60% PD) with peanut (100% PD) interplanted within orange trees on land and water productivities, as well as on farmer’s profit. The results showed that the highest peanut and orange yields were obtained under application of FI-CS1 and the highest yield of sesame and its components were obtained under appl
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Ahmed, M. SHEHA, S. M. ABD EL-LATTEF Ashraf, and OUDA Samiha. "Decreasing maize production-consumption gap by intercropping with upland rice using different planting densities under deficit irrigation." Moroccan Journal of Agricultural Sciences 2, no. 4 (2021): 182–93. https://doi.org/10.5281/zenodo.8045196.

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A two-year field experiment was conducted in 2018 and 2019 at Gemmiza Agricultural Research Station (Lat. 31.03° N, Long. 30.88° E, 8 m a.s.l.); Gharbia Governorate; Egypt. The aim was to use untraditional sowing method to intercrop maize with upland rice using three maize planting densities (25, 37.5 and 50% of its recommended density) and application of two deficit irrigation treatments (irrigation every 9 and 12 days), in addition to irrigation every 6 days (control) and to study its effect on the yield of both intercrops, competitive relationships and farmer’s income. The res
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VARUGHESE, KURUVILLA, and IRUTHAYARAJ M.R. "BIOLOGICAL AND ECONOMIC INDICES FOR MEASURING RESOURCE UTILISATION IN MAIZE-SOYBEAN INTERCROPPING SYSTEM." Madras Agricultural Journal 83, september (1996): 556–59. http://dx.doi.org/10.29321/maj.10.a01052.

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Experiments were conducted at the Tamil Nadu Agricultural University, Coimbatore to assess the biological and economic advantages of maize-soybean intercropping system under varying levels of irrigation and nitrogen during summer and kharif seasons of 1990. Though, land equivalent ratio (LER) recorded a positive value under varying levels of intercrops, irrigation and nitrogen, the land equivalent coefficient (LEC) showed its superiority in measuring the competition aspects in intercropping. The monetary equivalent ratio (MER) was modified with a new concept called net monetary equivalent rati
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Ceunfin, Syprianus, Djoko Prajitno, Priyono Suryanto, and Eka Tarwaca Susila Putra. "Penilaian Kompetisi dan Keuntungan Hasil Tumpangsari Jagung Kedelai di Bawah Tegakan Kayu Putih." Savana Cendana 2, no. 01 (2017): 1–3. http://dx.doi.org/10.32938/sc.v2i01.76.

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Penelitian ini bertujuan untuk mengetahui nilai kompetisi dan keuntungan hasil dalam tumpangsari jagung varietas pioner 21 dan kedelai varietas grobogan dibawah tegakan hutan kayu putih. Penelitian ini menggunakan metode percobaan lapangan yang terdiri atas dua faktor dan dirancang dengan menggunakan Rancangan Petak ber-alur. Faktor pertama sebagai petak utama berupa Posisi bidang olah dari kedudukan tegakan kayu putih (Zona) dan faktor kedua sebagai anak petak adalah jarak tanam jagung. Petak utama berupa zona bidang olah terdiri dari 2 aras yaitu zona 1 terletak pada posisi bidang olah yang
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Dissertations / Theses on the topic "Land Equivalent Ratio"

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Bedoussac, Laurent. "Analyse du fonctionnement des performances des associations blé dur-pois d'hiver et blé dur-féverole d'hiver pour la conception d'itinéraires techniques adaptés à différents objectifs de production en systèmes bas-intrants." Phd thesis, Toulouse, INPT, 2009. http://oatao.univ-toulouse.fr/7855/1/bedoussac.pdf.

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Les associations d'espèces sont définies comme la culture simultanée d'au moins deux espèces sur la même parcelle pendant une période significative de leur croissance. Ce système permettrait d'améliorer l'utilisation des ressources du milieu (eau, azote, lumière…) et ainsi d'augmenter le rendement et la qualité des grains par rapport aux cultures monospécifiques. L'objectif de notre travail était d'analyser le fonctionnement et d'évaluer la performance des associations blé dur - pois d'hiver et blé dur - féverole d'hiver pour aider à la conception d'itinéraires techniques adaptés à différents
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Barros, Júnior Aurélio Paes [UNESP]. "Adubação nitrogenada no consórcio alface e rúcula." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/105218.

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Made available in DSpace on 2014-06-11T19:33:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-02-20Bitstream added on 2014-06-13T20:45:36Z : No. of bitstreams: 1 barrosjunior_ap_dr_jabo.pdf: 517386 bytes, checksum: 645a826a9d61527bb271720029dfffe4 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Com o objetivo avaliar a influência de doses de nitrogênio realizadas para a alface e/ou para a rúcula, em consórcio, sobre as plantas (estado nutricional e crescimento) e sobre o consórcio (produtividade, classificação e qualidade, uso eficiente da área e rent
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Barros, Júnior Aurélio Paes. "Adubação nitrogenada no consórcio alface e rúcula /." Jaboticabal : [s.n.], 2008. http://hdl.handle.net/11449/105218.

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Resumo: Com o objetivo avaliar a influência de doses de nitrogênio realizadas para a alface e/ou para a rúcula, em consórcio, sobre as plantas (estado nutricional e crescimento) e sobre o consórcio (produtividade, classificação e qualidade, uso eficiente da área e rentabilidade), foi realizado um experimento no período de setembro à dezembro de 2006, na Unesp, Campus de Jaboticabal-SP. O delineamento experimental foi o de blocos casualizados completos, com quatro repetições, sendo os tratamentos arranjados em esquema fatorial 4 x 4 + 2. Os tratamentos resultaram da combinação de quatro doses d
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Paut, Raphael. "Analyse des compromis entre diversité cultivée et complexité de gestion à travers le cas d’étude du Verger-Maraîcher : Une approche combinant modélisation et méthodes qualitatives Reducing risk through crop diversification: an application of portfolio theory to diversified horticultural systems Modelling crop diversification and association effects in agricultural systems." Thesis, Avignon, 2020. http://www.theses.fr/2020AVIG0724.

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Les vergers-maraichers sont des systèmes mixtes agroforestiers qui visent à optimiser l'utilisation des ressources spatiales et temporelles en produisant des fruits et des légumes sur la même parcelle. De ce point de vue, ces systèmes semblent en mesure de répondre au double enjeu productif et environnemental auquel l’agriculture est confrontée aujourd’hui. Néanmoins, les vergers-maraichers sont caractérisés par une grande complexité structurale et organisationnelle, car ils combinent deux ateliers très exigeants possédant des dynamiques contrastées. Dans cette optique, les conditions permetta
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Pinto, Ciro de Miranda. "ConfiguraÃÃo e antecipaÃÃo de plantio da mamona em consÃrcio com a cultura do girassol." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6541.

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CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior<br>A mamoneira (Ricinus communis) Ã tolerante a seca e cultivada para produÃÃo de Ãleo para uso industrial. Na regiÃo Nordeste os pequenos produtores cultivam a mamona consorciada algodÃo, feijÃo caupi, gergelim, girassol, milho, sorgo ou amendoim. Dois experimentos de campo foram conduzidos nos anos agrÃcolas 2008, 2009 e 2010, na Fazenda Experimental Lavoura Seca, QuixadÃ, CearÃ, com o objetivo de avaliar o comportamento da mamona e girasssol cultivados em dois padrÃes de consorciaÃÃo. No experimento I avaliou-se o consorcio mamona (Ma) x gira
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Talbot, Grégoire. "L'intégration spatiale et temporelle du partage des ressources dans un système agroforestier noyers-céréales : une clef pour en comprendre la productivité ?" Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2011. http://tel.archives-ouvertes.fr/tel-00664530.

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Des mesures sur parcelles agroforestières (mélanges d'arbres et de cultures) expérimentales mettent en évidence des productivités exceptionnelles, avec des gains de plus de 30% par rapport à l'assolement de cultures pures. Nous avons mis au point et utilisé un modèle numérique dynamique en 3-D (Hi-sAFe) pour (1) tester si l'intégration spatio-temporelle du partage des ressources (lumière, eau, azote) entre espèces suffit à expliquer cette productivité et (2) évaluer l'impact de différents choix de conception ou de gestion sur cette productivité, à partir d'une compréhension des processus impli
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Wang, Zhaozhi. "Predicting toxic gas concentrations resulting from enclosure fires using the local equivalence ratio concept linked to fire field models." Thesis, University of Greenwich, 2007. http://gala.gre.ac.uk/6338/.

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The central idea behind the newly developed toxicity model is the use of the Local Equivalence Ratio (LER). The species yields as functions of the Global Equivalence Ratio (GER) and temperature are input parameters of this model. Correlations for most building materials are available from small-scale fire experiments. Similar approaches to this method are also developed using the CO/CO2 and H2/H2O mole ratios. The LER methodology is further refined by an approach which divides the computational domain for the calculation of toxic gases into two parts, a control region in which the toxic gases
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Maimela, Katlego Alocia. "Performance of five cowpea (Vigna uguiculata L.) varieties in cowpea/maize strip intercropping in Limpopo." Thesis, 2019. http://hdl.handle.net/10386/2972.

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Thesis (MSc. Agriculture (Agronomy)) -- University of Limpopo, 2019<br>The traditional practice of farmers in Limpopo Province is to mixed and broadcast crops at planting without definite row arrangement. This practice hinders farm input application and results in low crop yields. Strip intercropping, where crops are planted with definite row arrangement, has the advantage of reducing inter-species competition, optimise plant population and increasing crop yield. This study aimed at improving cowpea-maize cropping systems using strip intercropping. The experiment was conducted at University of
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Book chapters on the topic "Land Equivalent Ratio"

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Kristamtini, Arini Putri Hanifa, Setyorini Widyayanti, et al. "Competitive Dynamics and Yield Performance of Soybean-Based Intercropping Systems on Inceptisols." In Soybean Science and Sustainability - Advancing Crop Productivity, Nutrition, and Climate Resilience [Working Title]. IntechOpen, 2025. https://doi.org/10.5772/intechopen.1010302.

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This study evaluated the competitive dynamics and yield performance of soybean-based intercropping systems on dryland Inceptisols. Conducted in Gunungkidul, Yogyakarta, Indonesia, from March to August 2020, the research compared four intercropping systems: upland rice-soybean, maize-soybean, maize-peanut, and maize-upland rice, against their respective monocultures. A randomized complete block design with five replicates was employed. Analysis to assess agronomic performance includes Land Equivalent Ratio (LER), Aggressivity (A), Competitive Ratio (CR), Relative Crowding Coefficient (K), and A
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Kurmi, Ramkishor, Jagdeesh Kurmi, Manojit Chowdhury, Pradeep Kumar, Suyog Balasaheb Khose, and Rohit Anand. "AGRI-VOLTAIC: A SUSTAINABLE SOLUTION FOR CLIMATE SMART AGRICULTURE." In Futuristic Trends in Agriculture Engineering & Food Sciences Volume 3 Book 15. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bcag15p2ch1.

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Generation of renewable energy has currently gained more importance around the world than ever before. In India, Photovoltaic (PV) based electricity shares a major portion of total renewable energy generation. This technology harnesses the power of the sun to produce clean and renewable energy, offering a pathway towards a greener and more sustainable future. The potential of photovoltaic-based electricity generation lies in its versatility and accessibility. The installation of PV systems on open areas is the lowest cost option, are also installing on the agricultural land. This can result in
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Dobocha, Dereje, and Debela Bekele. "Faba Bean Agronomic and Crop Physiology Research in Ethiopia." In Legumes [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.101542.

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Faba bean is an important pulse crop in terms of protein source, area coverage, and volume of annual production in Ethiopia. The aim of this paper is to assess the agronomic and crop physiology investigations in the past two decades in Ethiopia. The production limiting factors of this crop are low input usage, natural disasters, depletion of macronutrients, and unavailability of essential nutrients. Phosphorus is among the main limiting nutrients in soil systems in Ethiopia. Seed yield and biomass yield of faba bean were increased from 1338 to 1974 kg/ha and from 3124 to 4446 kg/ha when phosph
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Dudnik, Аndriy, and Olexandr Usachenko. "METHODS OF DETERMINATION OF INTERFERENCES IN WIRELESS COMPUTER NETWORKS." In Science, technology, and innovation: the experience of European countries and prospects for Ukraine. Publishing House “Baltija Publishing”, 2021. http://dx.doi.org/10.30525/978-9934-26-190-9-1.

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The subject of the latest research is wireless security, which remains a major issue in LANs around the world. While wireless networks offer convenience and flexibility, they also increase network vulnerability. Security threats such as unauthorized access, denial of service attacks, IP and MAC address spoofing, session theft, and eavesdropping can be problems for WLANs. To counter these threats, various standard authentication and encryption methods are combined with other access control mechanisms. These protocols, devices and methods combine to provide a WLAN level of security equal to or e
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Bezgodov, Andrei Viktorovich. "Advantages of Growing Field Peas in Mixed Crops With Rapeseed and Mustard." In Culture. Science. Education: modern trends. Publishing house Sreda, 2020. http://dx.doi.org/10.31483/r-74741.

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In field experiences studies on growing field peas in single-component and mixed seeding with spring rape and white mustard were conducted in the Middle Urals. The crop capacity was increased by 10,8% as well as the total yield was increased by 2.3 times up to 2.14 t / ha by the use of spring rape as a supporting and compacting crop in sowng peas with a seeding rate at 0.6 million / ha. It was found out that crop productivity of peas was decreased by 19.4% when the seeding rate was established at 0.4 million / ha, and the crop productivity of spring rape remained at the level of pure sowing –
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Conference papers on the topic "Land Equivalent Ratio"

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Zhang, Chao. "Low Cycle Fatigue Crack Initiation of Rotating Structures Under Biaxial Stress States." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59249.

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Rotating structures can experience biaxial stress states with a wide range of biaxiality ratios on structure surfaces. Low cycle fatigue (LCF) crack initiation in such conditions demonstrates different fatigue characteristics in terms of crack orientation, fatigue life, etc. The biaxial stress states can be categorized into two types: in-phase and out-of-phase under which fatigue characteristics can be significantly different according to rig test results. This paper presents an investigation of LCF crack initiation under in-phase and out-of-phase biaxial stress states based on rig test result
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Lampert, Dieter, Robert F. Steele, Markus Rosenfelder, and Salvatore DellaVilla. "Equivalent Availability Measurement for Combined-Cycle Power Plants: A New Approach." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0579.

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The Equivalent Availability Factor (EAF) is the most important RAM characteristic in statistics for benchmarks and guarantees for power plants. It represents an energy ratio of the amount available in a period and the theoretical maximum. Representing the impact of scheduled and forced outages of components along with any deratings, a large number of parameters are involved from design, operation to the environment. In 1993, ABB and SPS commenced a cooperation on the fields of data procurement and recording. ABB brought large experience as a power plant supplier, SPS its competence as the lead
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Drennan, Scott A., Chen-Pang Chou, Anthony F. Shelburn, et al. "Flow Field Derived Equivalent Reactor Networks for Accurate Chemistry Simulation in Gas Turbine Combustors." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59861.

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A method has been developed in which the flow field predicted by Computational Fluid Dynamics (CFD) is automatically condensed into an Equivalent Reactor Network (ERN), composed of well stirred reactors, allowing rapid and accurate analysis of emissions. This paper presents the effectiveness of utilizing an ERN that is a direct abstraction of the computational flow field for combustion analysis. The CFD results are divided into reactors using various filters on flow-field variables to construct an ERN that represents the 3-D combustor flow field and flame structure. Detailed kinetics can then
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Yoon, JeongJung, and HeonSeok Lee. "The Study on Development of Low NOx Combustor With Lean Burn Characteristics for 20 kW Class Microturbine." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53200.

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In order to reduce NOx emissions for the 20kW class microturbine under development, the low NOx characteristics were investigated as an application of the lean burn premixed combustion technology. This study was performed under the conditions of high temperature and high pressure. The compressed air of 2.5bar, 3.0bar, and 5.0bar with temperature of 560K was supplied to the combustor through the preheater. The exhaust air was sampled and measured at the immediate exit of the combustor. It is found that NOx increased while CO decreased as increasing inlet air temperature and pressure. NOx decrea
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Ghenaiet, Adel. "Analyses and Optimization of a Propulsion Cycle for Unmixed High Bypass Turbofan." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50340.

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This paper deals with a parametric study and an optimization for the design variables of a high bypass unmixed turbofan equipping commercial aircrafts. The objective of the first part of this study is to highlight the effects of the principal design parameters (bypass ratio, compression ratios, turbine inlet temperature etc..) on the uninstalled performance, in terms of specific thrust and specific fuel consumption. The second part concerns the optimization, aiming at finding the optimum design parameters concurrently minimizing the specific fuel consumption at cruise, and meeting the thrust r
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Ogata, Takashi, and Takayuki Sakai. "Life Prediction Method of CC and DS Ni Base Superalloys Under High Temperature Biaxial Fatigue Loading." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59069.

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Polycrystalline conventional casting (CC) and directionally solidified (DS) Ni base superalloys are widely used as gas turbine blade materials. It was reported that surface of a gas turbine blade is subjected to biaxial tensile-compressive fatigue loading during start-stop operation based on finite stress analysis results. It is necessary to establish life prediction method of these superalloys under biaxial fatigue loading for reliable operation. In this study, the in-plane biaxial fatigue tests with different phase of x and y directional strain cycles were conducted on both a CC and a DS Ni
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Oh, Sang Hyun, Dong Hyun Lee, Kyung Min Kim, Moon Young Kim, and Hyung Hee Cho. "Enhanced Cooling Effectiveness in Full-Coverage Film Cooling System With Impingement Jets." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50784.

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An experimental investigation is conducted on the cooling effectiveness of full-coverage film cooled wall with impingement jets. Film cooling plate is made of stainless steel, thus the adiabatic film cooling effectiveness and the cooling effect of impingement jet underneath the film cooling plate are comprised in the cooling effectiveness. Infra-red camera is used to measure the temperature of film cooled surfaces. Experiments are conducted with different film cooling hole angles, such as 35° and 90°. Diameters of both film cooling holes and impinging jet holes are 5 mm. The jet Reynolds numbe
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Becker, Julian, and Christoph Hassa. "Liquid Fuel Placement and Mixing of a Generic Aeroengine Premix Module at Different Operating Conditions." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30102.

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Fuel placement and air-fuel mixing in a generic aeroengine premix module employing plain jet liquid fuel injection into a counter-swirling double-annular crossflow were investigated at different values of air inlet pressure (6 bar, 700 K and 12 bar, 700 K) and liquid-to-air momentum flux ratio, both parameters being a function of engine power. Kerosene Jet A-1 was used as liquid fuel. Measurement techniques included LDA for investigation of the airflow and Mie-scattering laser light sheets and PDA for investigation of the two-phase flow. Measurements were taken at various axial distances from
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Ghenaiet, Adel. "Optimization of Turbofan Propulsion Cycle Using a Genetic Algorithm." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22420.

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This paper presents an evolutionary approach as the optimization framework to design for the optimal performance of a high-bypass unmixed turbofan to match with the power requirements of a commercial aircraft. The parametric analysis had the objective to highlight the effects of the principal design parameters on the propulsive performance in terms of specific fuel consumption and specific thrust. The design optimization procedure based on the genetic algorithm PIKAIA coupled to the developed engine performance analyzer (on-design and off-design) aimed at finding the propulsion cycle parameter
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Rajoo, Srithar, and R. F. Martinez-Botas. "Lean and Straight Nozzle Vanes in a Variable Geometry Turbine: A Steady and Pulsating Flow Investigation." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50828.

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Variable Geometry Turbines (VGT) are widely used to improve engine-turbocharger matching and currently common in diesel engines. VGT has proven to provide air boost for wide engine speed range as well as reduce turbo-lag. This paper presents the design and experimental evaluation of a variable geometry mixed flow turbocharger turbine. The tests have been carried out with a permanent magnet eddy current dynamometer within a velocity ratio range of 0.47 to 1.09. The peak efficiency of the variable geometry turbine corresponds to vane angle settings between 60° and 65°, for both the lean and stra
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Reports on the topic "Land Equivalent Ratio"

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Fernandes, R., M. Maloley, and F. Canisius. Relationship between leaf area index and Landsat Operational Land Imager equivalent reduced simple ratio vegetation index for the Athabasca oil sands region, northern Alberta. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/308333.

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