A5006591383- Advanced X-ray and CT Imaging
- Cardiac Imaging and Diagnostics
- Advanced Thermodynamics and Statistical Mechanics
- Quantum Mechanics and Applications
- Atomic and Molecular Physics
- Radiation Dose and Imaging
- Civil and Structural Engineering Research
- Nuclear physics research studies
- Urban Heat Island Mitigation
- Engineering and Materials Science Studies
- Quantum, superfluid, helium dynamics
- Astronomical and nuclear sciences
- Medical Imaging Techniques and Applications
- Ecology, Conservation, and Geographical Studies
- Quantum and Classical Electrodynamics
- Greenhouse Technology and Climate Control
- Medical Practices and Rehabilitation
- Building materials and conservation
- Structural Engineering and Materials Analysis
- Solar Radiation and Photovoltaics
- Plasma Diagnostics and Applications
- Membrane Separation and Gas Transport
- Indigenous Cultures and Socio-Education
- Pigment Synthesis and Properties
- Atmospheric aerosols and clouds
Washington University in St. Louis
1927-2024
Siemens Healthcare (Germany)
2023-2024
Furtwangen University
2019
Institute for Independent Studies Zürich
2019
ETH Zurich
1991
Calcium blooming causes stenosis overestimation on coronary CTA.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVapor Pressures and Other Physical Constants of Methylamine SolutionsW. A. Felsing R. ThomasCite this: Ind. Eng. Chem. 1929, 21, 12, 1269–1272Publication Date (Print):December 1, 1929Publication History Published online1 May 2002Published inissue 1 December 1929https://pubs.acs.org/doi/10.1021/ie50240a034https://doi.org/10.1021/ie50240a034research-articleACS PublicationsRequest reuse permissionsArticle Views634Altmetric-Citations32LEARN ABOUT THESE...
^{18}Mg was observed, for the first time, by invariant-mass reconstruction of ^{14}O+4p events. The ground-state decay energy and width are E_{T}=4.865(34) MeV Γ=115(100) keV, respectively. observed momentum correlations between five particles consistent with two sequential steps prompt 2p passing through ground state ^{16}Ne. spectrum also provides evidence an excited at excitation 1.84(14) MeV, which is likely 2^{+} state. As this exceeds that in ^{20}Mg, observation argument demise N=8...
The absorption of the resonance radiation (2536A) mercury was studied by dividing from a lamp into two parts, each part going separate photo-electric cell. An cell containing vapor whose pressure could be controlled cooling side tube placed in path one beam. ratio amount light passing beam varied mechanical device. From setting device, giving balance between currents, inferred. per atom calculated and found to decrease rapidly as total absorbing increased, thus showing that is not...
We compared ultra-high resolution (UHR), standard (SR), and virtual non-calcium (VNCa) reconstruction for coronary artery stenosis evaluation using photon-counting computed tomography (PC-CT).
States in $^{28}\mathrm{S}$ and $^{30}\mathrm{Cl}$ have been studied using one- two-proton decay spectroscopies. In the first spectrometer setting, states were populated following one-neutron knockout from a fast $^{29}\mathrm{S}$ beam. Three new are observed decays. For case nature of was investigated found to proceed via sequential emission. second one-proton $^{31}\mathrm{Ar}$ The energy ground excited state measured with ground-state be disagreement previous measurement. spin parity...
The atom model of Niels Bohr is commonly considered as antiquated even if it describes the atomic spectrum hydrogen quite accurately. later published relation Louis De Broglie could arithmetically be implemented into Bohr’s formulation, leading to concept standing waves existence cause excited electron states. However, at that time was not possible find well defined trajectories being classically describable. As a consequence, »quantum mechanics« were developed by several authors,...
With respect to the reflective behaviour of solar radiation on solid surfaces being relevant for (micro)-climate modelling, particularly at pavements, buildings and roofs, it is proposed that making a difference between colour dependent terms albedo as reflection coefficient αs, former related white surface latter total incident radiation. As complement coefficient, absorption βs = 1 - αs defined. For conceiving thermal materials in presence sunlight, novel method described...
In contrast to the usual spectroscopic methods, temperature of a gas embedded in tube was measured here and not intensity loss radiation. order minimize interference by tube, light-weight building materials were used, preferably Styrofoam, transparent plastic foils aluminium foils. Sunlight as well infrared (IR)-bulbs employed radiation sources, whereby near-IR is predominant medium-IR it usually assumed. Different gases tested, only air carbon-dioxide but also noble argon, helium neon. each...
The phenomenon of spin-orbit-coupling let suppose that the electron spin, which exhibits character an oscillator but cannot be explained by classical physical laws, is herewith identified to responsible for a minimal angular momentum – given Planck’s constant - determines ground state single H-atom according Bohr’s model.
In view of the global acceptance and political relevance climate greenhouse theory–or rather philosophyit appeared necessary to deliver a synoptic presentation enabling detailed exemplary refutation. It focuses foundations theory assuming that cannot be correct when its are not correct. Thus, above all, critical historical review is made. As spin-off this study, Lambert-Beer law questioned suggesting an alternative approach. Moreover, Stefan-Boltzmann relativized revealing different...
After the stringent refutation of climate greenhouse theory, delivered by a recent publication, artificial brightening considerable parts Earth surface, preferably in cities, gives only chance mitigating global warming and its implicit amplification thermal surface gradients leading to intensified storms. It implies novel philosophy, generally described under motto «increasing albedo», but proceeding from relatively small areas which influence microclimate. Thereby, not albedo itself should...
In a previous, primary treatise of the author mathematical description electron trajectories in excited states H-atom could be demonstrated, starting from Bohr’s original model but modifying it three dimensionally. subsequent treatise, theorem an unalterable angular momentum h/2π, determining ground state H-atom, was revealed as inducement by the—unalterable—electron spin. Starting this presumption, H2-molecule created which exhibits well-defined trajectories, and enabled computing bond...
The resonant states in $^{20}\mathrm{Mg}$ and $^{19}\mathrm{Mg}$ have been studied by the invariant-mass reconstruction of $^{18}\mathrm{Ne}+2p$ $^{17}\mathrm{Ne}+2p$ events, respectively. Two new resolved (${4}_{1}^{+}$ ${2}_{2}^{+}$) are found to decay through $^{19}\mathrm{Na}$ intermediate ground state $^{18}\mathrm{Ne}$ from examination decay-energy spectra for $^{18}\mathrm{Ne}+1p$ subsystems. deduced ${R}_{42}={E}^{*}({4}_{1}^{+})/{E}^{*}({2}_{1}^{+})$ ratio 2.10(1) is close expected...
The actual treatise represents a synopsis of six important previous contributions the author, concerning atmospheric physics and climate change. Since this issue is influenced by politics like no other, since greenhouse-doctrine with CO2 as culprit in change predominant, respective theory has to be outlined, revealing its flaws inconsistencies. But beyond that, author’s own are focused deeply discussed. most eminent one concerns discovery absorption thermal radiation gases, leading...
Knowledge about thermal radiation of the atmosphere is rich in hypotheses and theories but poor empiric evidence. Thereby, Stefan-Boltzmann relation central importance physics, holds status a natural law. However, its empirical foundation little, tracing back to experiments made by Dulong Petit two hundred years ago. Originated Stefan at end 19th century, theoretically founded afterwards Boltzmann, it delivers absolute temperature blackbody—or rather solid opaque body (SOB)—as result...
Proceeding from the double-cone model of Helium, based on Bohr’s theorem and recently published in [13], a spherical modification could be made by introducing second electron rotation which exhibits axis perpendicular to first one. Thereby, each is induced spin one electron. Thus trajectory represents superposition two separate orbits, while always positioned opposite other Both velocities are equal constant, due their mutual coupling. The 3D orbits 2D-graphed separately projecting them...
In the year 2006, book and film of former US vice president presidential candidate Al Gore, entitled «An Inconvenient Truth», stirred up general public.This this did not only emphatically illustrate consequences global climate warming but also establish an ostensible explanation alleged by prominent scientists.According to them carbon-dioxide concentration in air, arising within recent period time, induced a so-called greenhouse effect was thus responsible for warming.Al Gore"s work honoured...
The purpose of this contribution was to evaluate a recently published atom model for Helium, characterized by double rotation the electrons which exhibit perpendicular axes. Thereby, each is induced spin one electron [1]. Hereto, tangible mechanical used facilitated derive mathematical formulae as basics two-dimensional projections, and—not least—for digital animation yielding freeze images from different perspectives. resulting shape shell turned out be not spherical. In particular, total...