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Preliminary design of an innovative, simple, and easy-to-build portable ventilator for COVID-19 patients. [PDF]
EuroMediterr J Environ Integr, 2020 This technical note describes the preliminary design of a simple, easy-to-use, and easy-to-build ventilator with an unique design that can be used for COVID-19 patients in emergencies and to prevent massive loss of life in resource-poor environments.
El Majid B +4 more
europepmc +2 more sources
Preliminary Design and On-Site Testing Methodology of Roof-Cutting for Entry Retaining in Underground Coal Mine [PDF]
Sensors, 2023 Entry retaining via roof cutting is a new longwall mining method that has emerged in recent years, and is characterized by high resource utilization and environmental friendliness.
Ying Chen +5 more
doaj +2 more sources
Preliminary Design of a Space Habitat Thermally Controlled Using Phase Change Materials
Thermo, 2023 We explore the preliminary design of a space habitat thermally controlled using phase change materials (PCMs). The PCM is used to maintain a suitable, habitable temperature inside the habitat by isolating it from the external solar radiation.
B. Rismanchi +5 more
semanticscholar +1 more source
Buletin Ilmiah Nagari Membangun, 2023 Kampung Sarasah sebagai kampung tematik memiliki potensi ekonomi berupa kegiatan budidaya ikan hias air tawar sejak tahun 2020. Ketidaktersediaan sistem penyediaan air bersih menjadi salah satu faktor penghambat tumbuh dan kembangnya kawasan tersebut ...
Ridwan Ridwan +3 more
doaj +1 more source
A Tool for the Design of Turbomachinery Disks for an Aero-Engine Preliminary Design Framework
Aerospace, 2023 Disks in gas turbines are optimized for minimum weight, while satisfying both geometry and stress constraints, in order to minimize the engine production, operation, and maintenance costs.
Ioannis Kolias +3 more
doaj +1 more source
BIM-Assisted Workflow Enhancement for Architecture Preliminary Design
Buildings, 2022 China’s urban housing demand has directly influenced urbanization development. To stabilize the level of urbanization, it is urgent to optimize the whole life-cycle efficiency of construction and the preliminary design as the first step is even more ...
Keyao Wu, Shu Tang
semanticscholar +1 more source
Wing Structure of the Next-Generation Civil Tiltrotor: From Concept to Preliminary Design
Aerospace, 2021 The main objective of this paper is to describe a methodology to be applied in the preliminary design of a tiltrotor wing based on previously developed conceptual design methods.
M. Belardo +10 more
semanticscholar +1 more source
Propulsion Sizing Correlations for Electrical and Fuel Powered Unmanned Aerial Vehicles
Aerospace, 2021 Despite the increasing demand of Unmanned Aerial Vehicles (UAVs) for a wide range of civil applications, there are few methodologies for their initial sizing. Nowadays, classical methods, mainly developed for transport aircraft, have been adapted to UAVs.
Victor Alulema +4 more
doaj +1 more source
Inventions, 2023 Stirling engines are currently of interest due to their adaptability to a wide range of energy sources. Since simple tools are needed to guide the sizing of prototypes in preliminary studies, this paper proposes two groups of simple models to estimate ...
Enrique González-Plaza +2 more
doaj +1 more source
Aerospace, 2023 The aircraft environmental control system (ECS) is the second-highest fuel consumer system, behind the propulsion system. To reduce fuel consumption, one research direction intends to replace conventional aircraft with more electric aircraft.
Thomas Planès +3 more
doaj +1 more source