Results 1 to 10 of about 109,569 (118)

Numerical and Experimental Investigation on Post-buckling ‎Behavior of Stiffened Cylindrical Shells with Cutout subject to ‎Uniform Axial Compression [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2023
In this paper, post buckling behavior of thin steel and aluminum cylindrical shells with rectangular cutouts under axial loading was studied experimentally and also using the finite element method. Riks method is used for analyzing the cylindrical shells.
Amir Shahani, Faraz Kiarasi
doaj   +1 more source

Prevalence, Resistance Profile and Virulence Genes of Streptococcus agalactiae Colonizing Near-term Pregnant Women Attending Ain Shams University Hospital

open access: yesJournal of Pure and Applied Microbiology, 2021
Group B streptococcus (GBS) is a common cause of infections in pregnant females and non-pregnant adults with chronic diseases (such as diabetes and cancer), also it is the main reason of septicaemia and meningitis in infants. The aim of this study was to
Noha G. Abdallah   +4 more
doaj   +1 more source

Effect of Collagen Molecules and Hydroxyapatite Salt on Thermal Properties of Rib, Scapula, and Femur of Some Bovines under Normal and Decalcified Conditions

open access: yesJournal of Pure and Applied Microbiology, 2023
The study of thermal properties such as conductivity and specific heat of biomaterials is very important as most biological processes, in which biological tissues, cells, and molecules are involved are dependent on body temperature.
Abdul Rauf, Syed Ismail Ahmad
doaj   +1 more source

Optimization of the fin structure from polymer composite materials using bioinspired structural layouts

open access: yesНаучный вестник МГТУ ГА, 2023
To comply with efficiency in terms of strength, stability and weight of the aircraft, a complex problem for designing a structural layout should be solved.
S. V. Baranovsk, Lin Zay Yar
doaj   +1 more source

New record of the monostiliferous hoplonemertean Gurjanovella littoralis Uschakov, 1926 from Japan (Nemertea, Hoplonemertea, Monostilifera) [PDF]

open access: yesCheck List, 2020
A single specimen of a monostiliferous hoplonemertean, collected from a depth of 25 m in Akkeshi Bay, northern Japan, represents the first record of Gurjanovella littoralis Uschakov, 1926 from the Northwest Pacific.
Natsumi Hookabe, Hiroshi Kajihara
doaj   +3 more sources

The prevalence and clinical significance of transitional vertebrae: a radiologic investigation using whole spine spiral three-dimensional computed tomographic images [PDF]

open access: yesAnesthesia and Pain Medicine, 2020
Background Errors in counting spinal segments are common during interventional procedures when there are transitional vertebrae. In this study, we investigated the prevalence of the transitional vertebrae including thoracolumbar transitional vertebra ...
A Ram Doo   +7 more
doaj   +1 more source

Impact of Surface Roughness on Flow Physics and Entropy Generation in Jet Impingement Applications

open access: yesEntropy, 2022
In this paper, a numerical investigation was performed of an air jet incident that normally occurs on a horizontal heated plane. Analysis of flow physics and entropy generation due to heat and friction is included using a simple easy-to-manufacture ...
Abdulrahman Alenezi   +4 more
doaj   +1 more source

Hydrothermal performance of humid air flow in a rectangular solar air heater equipped with V‐shaped ribs

open access: yesEnergy Science & Engineering, 2022
In this numerical work, heat transfer characteristics of humid air in a rectangular channel as solar air heater equipped with V‐shaped ribs has been investigated.
Omid Nouri Kadijani   +4 more
doaj   +1 more source

Heat Transfer in Highly Turbulent Separated Flows: A Review

open access: yesEnergies, 2021
The study of flows with a high degree of turbulence in boundary layers, near-wall jets, gas curtains, separated flows behind various obstacles, as well as during combustion is of great importance for increasing energy efficiency of the flow around ...
Viktor I. Terekhov
doaj   +1 more source

A case report of rib osteosarcoma and literature review

open access: yesThe Clinical Respiratory Journal, 2023
About half of osteosarcomas occur near the knee joint, but other sites such as the humerus, upper femur, fibula, spine, and ilium can also occur. However, rib osteosarcoma is rarely reported. Here, we report the case of a 17‐year‐old female who was found
Xiaofeng Hu   +4 more
doaj   +1 more source

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