Results 31 to 40 of about 1,496 (181)
Penguasaan Konsep Fluida Statis Siswa SMA
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan, 2019 : This study aims to analyze the mastery of students’ concepts in static fluid material. The subjects in this study were students of class XII IPA 1 MAN 1 Pamekasan which consist of 40 students.
Zaitul Harizah +2 more
doaj +1 more source
A downward buoyant force experiment
Revista Brasileira de Ensino de FísicaIn hydrostatics, the Archimedes principle predicts an upward force whenever a body is submerged in a liquid. In contrast to common sense, this physical law is not free of exceptions, as for example when the body touches the container.
F.M.S. Lima, G.M. Venceslau, G.T. Brasil
doaj +1 more source
Energies, 2014 A new type of horizontal axis wind turbine adopting the Archimedes spiral blade is introduced for urban-use. Based on the angular momentum conservation law, the design formula for the blade was derived using a variety of shape factors.
Kyung Chun Kim +5 more
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Physicochemical and Mechanical Characterization of Raffia vinifera Pith
Advances in Materials Science and Engineering, 2020 In this paper, the physicochemical and mechanical properties of Raffia vinifera pith (RVP) are discussed. Microscopic observations have shown that the structure of the RVP is similar to that of a composite consisting of natural fibers. The effective area
N. R. Sikame Tagne +8 more
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Profil Kemampuan Pemecahan Masalah Siswa SMA pada Materi Fluida Statis
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan, 2019 : This research was aimed to analyze the profile of students' ability to solve static fluid problems. The survey research involved 70 XII students of Malang State High School 4.
Ernila Siringo Ringo +2 more
doaj +1 more source
Effect of SiC content on properties of copper matrix composites
Jin'gangshi yu moliao moju gongcheng, 2023 SiC/Cu composites were prepared by hot-pressing powder metallurgy with Al and Mg elements, and the effect of SiC volume percentage on the properties of SiC/Cu composites was studied.
Jianing CAI +5 more
doaj +1 more source
Direct Growth of Transparent Boron Nitride Neutron Shielding Layer for Space Window
Advanced Science, EarlyView.Direct growth of sp2‐sp3 hybridized BN (HBN) on quartz, enabled by an h‐BN buffer, produces transparent and stable films up to 80 µm thick with high transmittance and strong neutron shielding, making HBN a promising candidate for space windows in long‐term lunar missions.
Dobin Kim +15 more
wiley +1 more source
IEEE Open Journal of Engineering in Medicine and Biology, 2022 Goal: To provide a Multiple Emergency Ventilator (MEV) as backup in case of shortage of ICU ventilators and for use in camp hospitals. Methods: MEV provides the same oxygen mixture and peak inspiratory pressure (PIP) to 10 patients.
Giuseppe Baselli +6 more
doaj +1 more source
On the lever law of Archimedes in the mechanics of bodies
PAMM, 2023 AbstractThe lever law of Archimedes is widely known since classical antiquity. It is used in many practical applications. Ample experience confirms its validity. Therefore, the lever law sometimes appears obvious or trivial. Its manifestation in the literature of physics ranges from common ignorance through rare marked appreciation to erroneous ...
openaire +2 more sources
An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system
Deep Underground Science and Engineering, EarlyView.The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand +5 more
wiley +1 more source