Results 41 to 50 of about 1,829 (196)
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan, 2017 This study aims to increase the students’ comprehension of the concept of hydrostatic pressure and the law of Archimedes through discovery learning. The subjects of the study were VIII-A SMPK Citra Bangsa Kupang, Province of East Nusa Tenggara in the ...
Maksem Niksoni Late +2 more
doaj +1 more source
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
Wide Temperature Zero Thermal Expansion in Al Matrix Composites with High Thermal Conductivity
Advanced Science, EarlyView.Strain engineering strategy is implemented on the negative thermal expansion (NTE) phase Zn1.6Mg0.4P2O7 within composites, where Al matrix‐induced compressive strain drives uniform polyhedral and unit cell evolution, thereby enabling broad and consistent thermal compensation efficacy and obtaining good thermal performance.
Jinrui Qian +14 more
wiley +1 more source
Is the Archimedes principle a law of nature? Discussions in an ‘extended teacher room’
Physics Education, 2020 Abstract Is a suction cup at the bottom of a bathtub subject to an upward force from the surrounding water, even if there is no water under it? A student question, posted in a teacher facebook group on a Monday morning, led to a discussion involving 21 comments with 225 replies offered by 16 teachers during the next few days, including ...
Olof Dahl, Bo Eklund, Ann-Marie Pendrill
openaire +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
A Soft Robotic Jellyfish with Decoupled Actuators for Agile 3D Locomotion
Advanced Intelligent Systems, EarlyView.This study presents a soft robotic jellyfish featuring a functionally decoupled actuation architecture. By separating propulsion, steering, and vertical regulation into independent modules, the robot overcomes conventional coupled‐motion limitations. Utilizing a passive‐valve‐based differential drag strategy and lateral water jets, it achieves agile 3D
Zhuoheng Li +6 more
wiley +1 more source
, 2017 In the history of mathematics, there are a lot of famous names, and much can be said about them. This paper is dedicated to some outstanding Ancient Greek mathematicians: Thales of Miletus, Pythagoras and Archimedes.
Inta Volodko +3 more
core +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
Carbon Energy, EarlyView.This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song +8 more
wiley +1 more source