Results 31 to 40 of about 8,174,067 (427)

Carbon···Carbon Weak Interactions

open access: yesThe Journal of Physical Chemistry A, 2009
A theoretical study of the complexes formed by systems with electron-deficient and electron-excessive carbon atoms was carried out using DFT and ab initio methods up to the CCSD(T)/aug-cc-pVTZ computational level. Stable complexes with interaction energies between -6.0 and -22.8 kJ mol(-1) were obtained that correspond to weak C...C interactions.
Alkorta, Ibon   +5 more
openaire   +4 more sources

Treatment planning with a 2.5 MV photon beam for radiation therapy

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi   +5 more
wiley   +1 more source

Reliable Top-Left Light Convention Starts With Early Renaissance: An Extensive Approach Comprising 10k Artworks

open access: yesFrontiers in Psychology, 2018
Art history claims that Western art shows light from the top left, which has been repeatedly shown with narrow image sets and simplistic research methods.
Claus-Christian Carbon   +3 more
doaj   +1 more source

Exploring the SDSS Dataset with Linked Scatter Plots: I. EMP, CEMP, and CV Stars [PDF]

open access: yes, 2017
We present the results of a search for extremely metal-poor (EMP), carbon-enhanced metal-poor (CEMP), and cataclysmic variable (CV) stars using a new exploration tool based on linked scatter plots (LSPs).
Carbon, Duane F.   +2 more
core   +3 more sources

The Folded Paper Size Illusion: Evidence of Inability to Perceptually Integrate More Than One Geometrical Dimension

open access: yesi-Perception, 2016
The folded paper-size illusion is as easy to demonstrate as it is powerful in generating insights into perceptual processing: First take two A4 sheets of paper, one original sized, another halved by folding, then compare them in terms of area size by ...
Claus-Christian Carbon
doaj   +1 more source

Perceptions of persons who wear face coverings are modulated by the perceivers’ attitude

open access: yesFrontiers in Neuroscience, 2022
We examined if the effect of facial coverings on person perception is influenced by the perceiver’s attitudes. We used two online experiments in which participants saw the same human target persons repeatedly appearing with and without a specific piece ...
Johannes Leder   +4 more
doaj   +1 more source

Ab initio studies of carbon dioxide affinity to carbon compounds and minerals [PDF]

open access: yesEnergy Procedia 125, 450-456 (2017), 2017
We have performed quantum chemical computational studies to determine carbon dioxide affinity to carbon compounds and minerals, which could be present in shales. These studies shed light on the microscopic mechanisms of the possible carbon oxide sequestration processes. Our studies reveal that the carbon oxide can be adsorbed to various forms of carbon
arxiv   +1 more source

Monographing "Sacred Laws" [PDF]

open access: yes, 2012
Along with new interest in the subject of Greek “sacred laws”, a series of monographic studies of inscriptions included in this category have recently been published.
Carbon, Jan-Mathieu
core   +2 more sources

Large presence of carbonic acid in CO$_2$-rich aqueous fluids under Earth's mantle conditions [PDF]

open access: yesJournal of Physical Chemistry Letters 10, 5135-5141 (2019), 2019
The chemistry of carbon in aqueous fluids at extreme pressure and temperature conditions is of great importance to Earth's deep carbon cycle, which substantially affects the carbon budget at Earth's surface and global climate change. At ambient conditions, the concentration of carbonic acid in water is negligible, so aqueous carbonic acid was simply ...
arxiv   +1 more source

Frühe Prozesse der Gesichtserkennung [PDF]

open access: yes, 2003
0\. TITLE PAGE, TABLE OF CONTENTS, ACKNOWLEDGMENTS 1\. INTRODUCTION 1 1.1. Subgoals, goals and limitations 1 1.2. We cannot help seeing them: Our world is full of faces 1 1.3. Importance of face recognition 3 1.4. Applications 3 2\.
Carbon, Claus-Christian
core   +1 more source

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