Results 11 to 20 of about 1,780,592 (310)
Atmosphere, 2019 In this study, the relationship between gravity wave (GW) potential energy (Ep) and the tropopause height and temperature over the globe was investigated using COSMIC radio occultation (RO) dry temperature profiles during September 2006 to May 2013.
Daocheng Yu +3 more
doaj +1 more source
THE IMPACT OF RENEWABLE ENERGY PRODUCTION ON GREENHOUSE GAS EMISSIONS IN ROMANIA [PDF]
Analele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2022 Romania's greenhouse gas (GHG) emissions come largely from the energy sector, including the energy production sector. In 2019, the energy sector contributed 66.45% of total GHG emissions. Energy strategies and policies adopted at national level are the
LIVIU-VALENTIN VLĂDUCU +1 more
doaj
Analysis of Kinetic Energy Recovery Systems in Electric Vehicles
Vehicles, 2023 The recovery of kinetic energy (KER) in electric vehicles was analyzed and characterized. Two main systems were studied: the use of regenerative brakes, and the conversion of potential energy.
Carlos Armenta-Déu, Hernán Cortés
doaj +1 more source
An alternative mobility & transportation that uses gravity for the colonization of the Moon [PDF]
Revista Brasileira de Ensino de Física, 2020 It is well known that hypothetical tunnels net within the Earth is usually considered as an illustration in a gravitation course for undergraduate students.
M.A. De Andrade +2 more
doaj +1 more source
Applied Sciences, 2020 The time-varying mesh stiffness (TVMS) is the crucial parameter of the dynamic model of the gear system. Accurate calculation of TVMS is essential for effective fault diagnosis of the gear system.
Jian Shen +3 more
doaj +1 more source
Tikrit Journal of Pure Science, 2023 In this research, the potential energy and vibration frequencies for two of an non-liner molecules [ (C3H9Ga) and (C6H15Ga)] have been studied and calculated by using the semi-empirical theoretical programs in method (MNDO/PM3) where the geometric space
Abdul Rahman Rashid Hammood +2 more
doaj +1 more source
In silico analysis of wild-type and mutant KRAS [PDF]
Pharmaciana, 2019 The mutations of the KRAS gene at codons 12, 13, and 61 have been widely reported with different prognosis. In silico is one approach to explain the characteristics of the mutant genes.
Frengki Frengki +4 more
doaj +1 more source
Infection and Drug Resistance, 2021 Piotr H Pawłowski Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warszawa, PolandCorrespondence: Piotr H Pawłowski Tel +48-22-659-70-72Email piotrp@ibb.waw.plAbstract: The change in the formal charge of 34 SARS-CoV-2 ...
Pawłowski PH
doaj
Analytical Approaches to Improve Accuracy in Solving the Protein Topology Problem
Molecules, 2018 To take advantage of recent advances in genomics and proteomics it is critical that the three-dimensional physical structure of biological macromolecules be determined.
Kamal Al Nasr +3 more
doaj +1 more source