Results 11 to 20 of about 1,242,139 (286)

Direct simulation of aerodynamic sound about a diagonally arranged two-dimensional fin array by the finite-difference lattice Boltzmann method

open access: yesNihon Kikai Gakkai ronbunshu, 2015
We studied sound generated by a diagonally arranged fin in a uniform flow. We set 2-dimensional computational model which neglected spanwise effect of the fins, and performed direct simulation of aerodynamic sound for two types of fins whose difference ...
Yuichi KUNISHIMA   +4 more
doaj   +1 more source

A predictive model to estimate fever after receipt of the second dose of Pfizer‐BioNTech coronavirus disease 2019 vaccine: An observational cohort study

open access: yesHealth Science Reports, 2022
Background and Aims Fever after coronavirus disease 2019 (COVID‐19) vaccination is generally a mild and benign event, but can cause excessive anxiety in younger adults.
Satoru Chiba, Kaoru Shinohara
doaj   +1 more source

Thermal Efficiency Improvement of a Lean-Boosted Spark Ignition Engine by Multidimensional Simulation with Detailed Chemical Kinetics

open access: yesInternational Journal of Automotive Engineering, 2015
This paper aims to improve thermal efficiency of spark ignition engine by numerical calculation with detailed chemistry. Experimental results from a four-stroke-single-cylinder engine are compared with that of simulations. It is experimentally found that
Ratnak Sok   +4 more
doaj   +1 more source

Thermal Expansion of Forsterite, Mg2SiO4 : 1. Measurements [PDF]

open access: yes, 1996
Thermal expansion of forsterite, Mg2SiO4, is measured up to 1,600 K by the dilatometric method. The present results of volume thermal expansion Yv is 3.20 percent from 300 to 1,200 K and expansion coefficient αv is 40.5 × 10-6 K-1 at 1,200 K.
Kajiyoshi, Koji, Suzuki, Isao
core   +1 more source

Effect of ambient pressure on fluorescence intensity of inexpensive inorganic fluorescent tracer for particle image velocimetry of gaseous flows near solid objects

open access: yesAIP Advances, 2020
Flow dynamics near the spark plug gap have become more important to promote more stable lean/dilute combustion in internal combustion engines. One experimental technique for the measurement of instantaneous gaseous flow in an engine cylinder is particle ...
C. Kondo, K. Muramatsu, T. Okamoto
doaj   +1 more source

Synthetic polymers as xeno-free materials for stabilizing basic fibroblast growth factor in human mesenchymal stem cell cultures

open access: yesBiochemistry and Biophysics Reports, 2021
Series of sulfonated polymers were evaluated as additives in cell culture media. Some of the compounds, such as sulfated polyvinyl alcohol (PVA), prevented denaturation and loss of basic fibroblast growth factor during cell culture and enhanced human ...
Yoko Masuzawa, Manabu Kitazawa
doaj   +1 more source

Visualization and quantitative evaluation of eddy current loss in bar-wound type permanent magnet synchronous motor for mild-hybrid vehicles

open access: yesCES Transactions on Electrical Machines and Systems, 2019
This paper describes the conductor eddy current loss that occurs in a permanent magnet type synchronous motor with a distributed winding stator using a rectangular copper wire designed for mild hybrid system applications for small vehicles. Compared with
Masahiro Aoyama, Jianing Deng
doaj   +1 more source

Transversal approach to digital risk management

open access: yesE-Management, 2021
The article presents a brief overview of digital risks, since their management is an integral part of business management. Digital transformation opens up incredible opportunities for both organizational growth and value creation.
Yu. V. Vorontsova, V. N. Baranov
doaj   +1 more source

Conformal Field Theories on K3 and Three-Dimensional Gauge Theories [PDF]

open access: yes, 1999
According to a recent conjecture, the moduli space of the heterotic conformal field theory on a $G\subset$ ADE singularity of an ALE space is equivalent to the moduli space of a pure $\cx N=4$ supersymmetric three-dimensional gauge theory with gauge ...
Mayr, P.
core   +4 more sources

High lithium-ion conducting NASICON-type Li1+xAlxGeyTi2-x-y(PO4)3 solid electrolyte

open access: yesFrontiers in Energy Research, 2016
A water-stable solid electrolyte is a key material without which aqueous lithium-air batteries could not be operated. In this study, we have examined the electrical conductivity and mechanical properties of a water-stable lithium ion conducting solid ...
Shang eXuefu   +8 more
doaj   +1 more source

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