Results 21 to 30 of about 2,306 (84)

Physics-Chemical Analysis on The Surface and Ground Water: A Case Study in Aceh Province

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2020
Environment is a habitat for all living things in the universe. Therefore, it must be preserved, especially on the surface and ground water. Environmental pollution in almost all over the world recently has been in a very alarming level.
Mariana, M. Zaki, Mahidin, A. Gani, M. Rusdi, Z. Idami, M. Karmel, E. Miswar, Erdiwansyah, M. Nasir, Ichwana, Nasrullah, A. Afwanudin, Safarul Aufa   +13 more
semanticscholar   +1 more source

RGB-LED-PHOTOMETER AND THE DIGITAL IMAGE-BASED METHOD USING A SMARTPHONE FOR CHEMISTRY AND PHYSICS TEACHING

Química Nova, 2023
This work describes the analysis of molecular spectroscopy in the UV/Vis region, as well as the study of transmittance, absorption, and reflectance phenomena in an undergraduate class using an LED (light emitting diodes)-photometer and digital image ...
V. D. dos Santos, Wevylla de Oliveira, J. P. de Almeida, M. Foguel, W. Suarez, J. D. de Oliveira   +5 more
semanticscholar   +1 more source

Correction for Shtykova et al., “Solution Structure, Self-Assembly, and Membrane Interactions of the Matrix Protein from Newcastle Disease Virus at Neutral and Acidic pH”

Journal of Virology, 2021
aA. V. Shubnikov Institute of Crystallography of Federal Scientific Research Centre Crystallography and Photonics, Russian Academy of Sciences, Moscow, Russia bN. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia cA. N.
E. Shtykova, M. Petoukhov, L. Dadinova, N. V. Fedorova, V. Y. Tashkin, T. A. Timofeeva, A. L. Ksenofontov, N. A. Loshkarev, L. A. Baratova, C. Jeffries, D. Svergun, O. Batishchev   +11 more
semanticscholar   +1 more source

Structure of the Silica/Divalent Electrolyte Interface: Molecular Insight into Charge Inversion with Increasing pH

Journal of Physical Chemistry C, 2020
The molecular origin of overcharging at mineral oxide surfaces remains a cause of contention within the geochemistry, physics, and colloidal chemistry communities owing to competing “chemical” vs “physical” interpretations.
Mokhtar Rashwan, Benjamin Rehl, Adrien Sthoer, Akemi M. Darlington, M. S. Azam, Hongbo Zeng, Qingxia Liu, E. Tyrode, J. Gibbs   +8 more
semanticscholar   +1 more source

Nonadiabatic quantum transition-state theory in the golden-rule limit. I. Theory and application to model systems

, 2018
We propose a new quantum transition-state theory for calculating Fermi's golden-rule rates in complex multidimensional systems. This method is able to account for the nuclear quantum effects of delocalization, zero-point energy and tunnelling in an ...
Fang, Wei, Richardson, Jeremy O., Thapa, Manish J.   +2 more
core   +1 more source

Maxallent: Maximizers of all Entropies and Uncertainty of Uncertainty [PDF]

, 2013
The entropy maximum approach (Maxent) was developed as a minimization of the subjective uncertainty measured by the Boltzmann--Gibbs--Shannon entropy. Many new entropies have been invented in the second half of the 20th century.
Gorban, A. N.
core   +1 more source

Band gap prediction for large organic crystal structures with machine learning

, 2019
Machine-learning models are capable of capturing the structure-property relationship from a dataset of computationally demanding ab initio calculations.
Balatsky, Alexander V., Borysov, Stanislav S., Geilhufe, R. Matthias, Olsthoorn, Bart   +3 more
core   +1 more source

Physics-chemical study for liquid glass from abundance distributed silicate mineral in Mongolia

Bulletin of Institute of Chemistry and Chemical Technology Mongolian Academy of Sciences, 2018
In this paper physics-chemical properties kinematic viscosity, liquid density, UV light adsorption, particle size distribution with photon cross correlation spectroscopy (PCCS) were studied in various colloidal silica sol pH value for the disperse system
Erdenebat Ts, M Unurzaya, B Uuriintsolmon, J. Vanchinkhuu, Purev Sh   +4 more
semanticscholar   +1 more source

Effects of tunnelling and asymmetry for system-bath models of electron transfer

, 2017
We apply the newly derived nonadiabatic golden-rule instanton theory to asymmetric models describing electron-transfer in solution. The models go beyond the usual spin-boson description and have anharmonic free-energy surfaces with different values for ...
Benderskii V. A., Chandler D., Gutzwiller M. C., Jeremy O. Richardson, Johann Mattiat, Kleinert H., Nitzan A., Ulstrup J., Weiss U., Zhu C., Zwanzig R.   +10 more
core   +1 more source

Extraction Process and Physics Chemical Characterization of Agar Powders from Gracilaria sp. Laboratory Scale in PT. Java Biocolloid Surabaya.

, 2020
Rumput laut merupakan salah satu komoditi laut yang memiliki nilai ekonomis tinggi, karena pemanfaatannya yang demikian luas, baik dalam kehidupan sehari-hari maupun dalam dunia industri, sehingga memiliki pasar yang luas dalam negeri maupun luar negeri.
Nidya Tria Yolanda, Agustono Agustono
semanticscholar   +1 more source