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130 articles for “Satellite”

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Review ArticleOpen accessIn the keywordsModern Propulsions for Aerospace-A ReviewRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.A spacecraft propulsion is any method used to accelerate spacecraft and artificial satellites. There are several different methods, each with advantages and disadvantages, spacecraft propulsion being an active area of research. However, most current spacecraft are propelled by forcing a gas exits through the rear of the vehicle at high speed through supersonic nozzle of a rocket engine. All spacecraft … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 1 · 25 Apr 2017 · 12,889 accessesView PDFCite
Research ArticleOpen accessIn the keywordsGlobal High-Power Rectenna Site SelectionOleg NizhnikThe reasons for implementing a high power density (>1 kW/m2) terrestrial rectenna for a space power plant system are described. The physical limitations on rectenna implementation are outlined and formal criteria for the rectenna site selection are proposed. The best site found was Mikura-jima, Japan. …Energy Research Journal, Vol. 3, Issue 1 · 28 Aug 2012 · 13,449 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Effect of Needle-Leaved Species in Increasing the Risk of Fire by Using Remote Sensing, Case Study: Forests of Golestan, IranAkram Karimi, Sara Abdollahi, Hamid Reza Kabiri Balajadeh et al.The present research was conducted to determine the sensitivity of needle-leaved species compared to broad-leaved in causing a natural fire in Golestan province. Vegetation and moisture stresses of plants were studied in both needle and mixed leaved forest the fire occurred in 2010-2014. In order to examine the normal condition of each indicator, the time series was produced from 2000 … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 1 · 30 Mar 2018 · 7,851 accessesView PDFCite
Review ArticleOpen accessIn the keywordsLong Distance Power Transfer Technique: A ReviewAnurag Dwivedi, Pooja Rajbhar, Nitesh TiwariIn this study WPT is reviewed in which electricity can be sent over long distances by without wire magnetic resonance echo frequency via some capacitance WiTricity in a coupled resonant exchange of goods takes place the least objects in it to stream the energy highly resonant occurs in earlier ear wireless power transmission was not possible our sun conducts energy … …Journal of Mechatronics and Robotics, Vol. 3, Issue 1 · 14 May 2019 · 6,738 accessesView PDFCite
Review ArticleOpen accessIn the keywordsLockheed Martin-A Short ReviewRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.Lockheed Martin is a company aerospace global American, defense, security and advanced technologies with interests in the world. Has been formed by the merger of Lockheed with Martin Marietta in March 1995. Has its head office in Bethesda, Maryland, in the area of Washington DC. Lockheed Martin has 126,000 employees in the entire world. Marillyn Hewson is the current President … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 1 · 30 May 2017 · 10,232 accessesView PDFCite
Review ArticleOpen accessIn the keywordsHistory of Aviation-A Short ReviewRelly Victoria Virgil Petrescu, Raffaella Aversa, Bilal Akash et al.The man has always wanted to be able to fly. The dream or although it has achieved, has not been reached yet fully. The fuse of the flight today is much higher than in the past, but is not yet complete. Although they have carried out the steps in the increase of the safety of a ship in flight, there … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 1 · 22 May 2017 · 16,592 accessesView PDFCite
Research ArticleOpen accessIn the keywordsModern Propulsions for Aerospace-Part IIRelly Victoria Virgil Petrescu, Raffaella Aversa, Bilal Akash et al.Speaking about a new engine ionic means to speak about a new aircraft. The paper presents in a short time the actual engines ion chambers (called the ion thrusters) and other new ionic motors proposed by the authors. The engine (ionic propulsion unit of ions, that accelerates the positive ions through a potential difference) is approximately ten times more efficient … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 1 · 25 Apr 2017 · 8,122 accessesView PDFCite
Research ArticleOpen accessIn the abstractCohesion Analysis of Rubber Stand Ages Using Object-Based Image Analysis and Spatial AutocorrelationJiradech Majandang, Suepsai Prasansat, Patiwat Littidej et al.Latex and rubber wood are crucial raw materials used in various industries and play a significant role in the economies of many countries, particularly in tropical regions. Mapping the areas where these materials are planted and classifying the age of rubber stands is important for managing growth assessment, yield assessment, and estimating the number of mature rubber trees that will … …Journal of Computer Science, Vol. 20, Issue 12 · 29 Nov 2024 · 5,304 accessesView PDFCite
Research ArticleOpen accessIn the abstractClassification of Geographical Land Structure Using Convolution Neural Network and Transfer LearningMustafa Majeed Abd Zaid, Ahmed Abed Mohammed, Putra SumariSatellite imagery has dramatically revolutionized the field of geography by giving academics, scientists, and policymakers unprecedented global access to spatial data. Manual methods typically require significant time and effort to detect the generic land structure in satellite images. This study can produce a set of applications such as urban planning and development, environmental monitoring, disaster management, etc. Therefore, the research … …Journal of Computer Science, Vol. 20, Issue 12 · 24 Oct 2024 · 5,086 accessesView PDFCite
Research ArticleOpen accessIn the abstractClimate-Driven Productivity Responses and Implications for Genetic Adaptation and Breeding of Boreal Trees in KazakhstanZhadyra Baigazakova, Kuralay Mazarzhanova, Asset Satayev et al.Kazakhstan’s boreal and forest-steppe forests form the southern ecotonal edge of the West Siberian taiga, where relatively small changes in heat and moisture can trigger disproportionate impacts on tree growth, mortality, and regeneration. Although forests cover only ~4% of Kazakhstan, they provide critical ecosystem services: stabilizing hydrological regimes, buffering microclimates, protecting agricultural lands from wind and water erosion, and supporting … …OnLine Journal of Biological Sciences, Vol. 26, Issue 3 · 10 Aug 2026 · 711 accessesView PDFCite