Results 21 to 30 of about 253,865 (262)

On the Estimation of Maximum Coefficients of Absorption [PDF]

open access: yesPhysical Review, 1925
On the basis of the correspondence principle it is shown that Einstein's coefficient of absorption can be estimated from the equation Bnα=2π3e2Q2/3h2 where e is the charge and Q the amplitude of the virtual oscillator which corresponds to the transition by absorption from state Sn to Sα. Assuming that probable maximum values can be obtained by taking e
openaire   +2 more sources

Inverse Braking Radiation and Resonance Absorption in Corona Plasmas of Inertial Confinement Fusion [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2020
: In this paper, combining the Maxwell equations with the electron balanceequation, we obtain the inverse braking radiation absorption coefficient in a laser fusioncorona plasma.
Ebrahim Heidari   +2 more
doaj  

Subjective Effects of Sound Absorption and Investigation of Reverberation Times in Modern Japanese Dwellings

open access: yesApplied Sciences, 2021
This study aimed to reveal the influence of sound absorption in general dwellings on the subjective evaluation of acoustics. First, a subjective experiment was conducted using a full-scale room model. The results indicate that the feelings of silence and
Kazuma Hoshi   +3 more
doaj   +1 more source

Optical Property Measurement and Temperature Monitoring in High-Intensity Focused Ultrasound Therapy by Diffuse Optical Tomography: A Correlation Study

open access: yesApplied Sciences, 2022
In this article, we propose a new approach utilizing diffuse optical tomography (DOT) to monitoring the changes in tissues’ optical properties and temperature in high-intensity focused ultrasound (HIFU) therapy.
Hao Yang, Sean Aleman, Huabei Jiang
doaj   +1 more source

A new simple method for determining the sound absorption coefficient

open access: yesMATEC Web of Conferences, 2018
Taking into account the influence of the length and diameter of the impedance tube on the process of decay of sound waves, a new study of sound propagation in an impedance tube is presented, on the basis of which it is easier to determine the sound ...
Chelidze Merab
doaj   +1 more source

THE ABSORPTION COEFFICIENT OF HARD γ-RAYS [PDF]

open access: yesProceedings of the National Academy of Sciences, 1930
The relation between the frequency of hard radiations and the absorption coefficient is not experimentally well established at the present time. In order to obtain definite information it is necessary to use a radiation with high homogeneity. γ-Rays from ThC” are found to fulfill this requirement.
openaire   +3 more sources

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

The relationship between low temperature CO2 absorption coefficient and temperature

open access: yes上海师范大学学报. 自然科学版, 2019
This article studied the absorption line of carbon dioxide gas with wavelength at 1 572.34 nm in the low temperature range,which was lack of data for CO2 absorption lines at low temperatures in the absorption spectrum data of HITRAN database.An empirical
TAO Kaichen, WU Xiangnong
doaj   +1 more source

Imaging the Human Thyroid Using Three-Dimensional Diffuse Optical Tomography: A Preliminary Study

open access: yesApplied Sciences, 2021
Thyroid cancer is usually diagnosed by ultrasound imaging and fine-needle aspiration biopsy. However, diagnosis of follicular thyroid carcinomas (FTC) is difficult because FTC lacks nuclear atypia and a consensus on histological interpretation.
Tetsuya Mimura   +4 more
doaj   +1 more source

Establishment of a humanized patient‐derived xenograft mouse model of high‐grade serous ovarian cancer for preclinical evaluation of combination immunotherapy

open access: yesMolecular Oncology, EarlyView.
We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric   +10 more
wiley   +1 more source

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