Results 11 to 20 of about 3,600,950 (342)
Geometry of static perfect fluid space-time [PDF]
Classical and quantum gravity, 2023 In this article, we investigate the geometry of static perfect fluid space-time on compact manifolds with boundary. We use the generalized Reilly's formula to establish a geometric inequality for a static perfect fluid space-time involving the area of ...
Costa, Johnatan +3 more
core +4 more sources
The Impact of Static Fluid E-Module by Integrating STEM on Learning Outcomes of Students
Journal of Education Technology, 2022 Students' success in learning can be seen from the achievement of student competencies. This means that several factors affect student learning outcomes, such as learning materials or e-module. E-module is a module packaged in electronic or digital form
Asrizal Asrizal +3 more
doaj +2 more sources
Fluid Leakage in Static Rubber Seals [PDF]
Tribology letter, 2022 Interfacial surface roughness can result in fluid leakage of seals, and in the design of seals it is standard to give an upper limit for the surface root-mean-square (rms) roughness amplitude hrms.
Persson, Bo
core +2 more sources
Identification of Students' Misconceptions in Static Fluid [PDF]
Tarbiyah: Jurnal Ilmiah Kependidikan, 2020 This study aimed to identify students’ misconceptions in static fluid covering Archimedes’ Principle and hydrostatic pressure. The used-instruments were of 10 multiple choice questions supported by reasons for answers.
Haritsah Alfad
doaj +3 more sources
Synchronized stationary clouds in a static fluid [PDF]
Physics Letters B, 2018 The existence of stationary bound states for the hydrodynamic velocity field between two concentric cylinders is established. We argue that rotational motion, together with a trapping mechanism for the associated field, is sufficient to mitigate energy ...
Carolina L. Benone +3 more
doaj +2 more sources
Static-fluid black holes [PDF]
Physical Review D, 2017 We investigate black holes formed by static perfect fluid with $p=-ρ/3$. These represent the black holes in $S_3$ and $H_3$ spatial geometries. There are three classes of black-hole solutions, two $S_3$ types and one $H_3$ type. The interesting solution is the one of $S_3$ type which possesses two singularities.
Cho, Inyong, Kim, Hyeong-Chan
openaire +4 more sources
Non-Static Fluid Spheres Admitting a Conformal Killing Vector: Exact Solutions [PDF]
Universe, 2022 We carry on a general study on non-static spherically symmetric fluids admitting a conformal Killing vector (CKV). Several families of exact analytical solutions are found for different choices of the CKV in both the dissipative and the adiabatic regime.
L. Herrera, A. Di Prisco, J. Ospino
semanticscholar +1 more source
STREM PBL with E-Authentic Assessment: Its Impact to Students’ Scientific Creativity on Static Fluid
Jurnal Pendidikan IPA Indonesia, 2023 This study aims to explore the scientific creativity of high school students on the static fluid in STREM PBL with an e-authentic assessment. This study used a mixed method with an embedded experimental design.
Z. U. Irma, S. Kusairi, L. Yuliati
semanticscholar +1 more source
Jurnal Pendidikan Sains Indonesia, 2021 Creative and critical thinking skills are one of the demands of new skills needed by students in the current era. One of the learning models that can sharpen creative and critical thinking skills is Problem based learning (PBL).
I. H. Wenno +2 more
semanticscholar +1 more source
Design of e-modules to stimulate HOTS on static fluid materials with the STEM approach
Journal of Physics: Conference Series, 2021 This study aims to develop an e-module to stimulate HOTS on static fluid material with the STEM approach. The research method uses the design of research and development (R&D) using the ADDIE model which consists of five stages, namely: analysis, design,
M. Afriyanti, A. Suyatna, Viyanti
semanticscholar +1 more source