Results 11 to 20 of about 2,874,418 (289)

Failure Transition and Validity of Brazilian Disc Test under Different Loading Configurations: A Numerical Study

open access: yesMathematics, 2022
The Brazilian disc test is a popular tensile strength test method for engineering materials. The fracture behavior of specimens in the Brazilian disc test is closely related to the validity of the test results.
Peng Xiao, Guoyan Zhao, Huanxin Liu
doaj   +1 more source

Holothuria (Lessonothuria) coronata sp. nov. (Echinodermata, Holothuroidea), a new species of sea cucumber from Socorro Island, México [PDF]

open access: yesZooKeys, 2022
Holothuria (Lessonothuria) coronata sp. nov. occurs in depths of 5–10 m off the Mexican Pacific coast at the Revillagigedo Archipelago. It is clearly distinguished from other species of the subgenus by the presence of tables with a circular disc and big ...
Brenda Anaid Yáñez Villanueva   +2 more
doaj   +3 more sources

Rods near curved surfaces and in curved boxes [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 1997
39 pages including figures and tables. 12 eps figures.
Yaman, K.   +4 more
openaire   +2 more sources

Helicoidal dynamics of biaxial curved rods in twist-bend nematic phases unveiled by unsupervised machine learning techniques.

open access: yesPhysical Review E, 2020
Uniaxial rods in a nematic phase diffuse preferentially in the direction parallel to the nematic director n[over ̂]. The nematic director field n[over ̂](r) of a chiral twist-bend nematic (N_{TB}) phase of achiral banana-shaped particles, recently ...
Massimiliano Chiappini   +2 more
semanticscholar   +1 more source

Improving the Efficiency of Curved Wells’ Operation by Means of Progressive Cavity Pumps

open access: yesEnergies, 2022
This paper proposes a solution to the problem of improving the reliability of the operation of progressive cavity pump units in deviated and directional wells. High dogleg severity significantly contributes to rod breakage; rods often break close to the “
Anatoliy Andreevich Isaev   +4 more
doaj   +1 more source

Jointing of thin elastic rods and generalized Kirchhoff conditions at nodes

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2020
The paper presents various models of thin elastic curved rods and their joints. Such rods and their connections are important in applied research and have a long history.
B.E. Kanguzhin   +2 more
doaj   +1 more source

Design of a Curved Shape Photonic Crystal Taper for Highly Efficient Mode Coupling

open access: yesSensors, 2021
The design and modeling of a curved shape photonic crystal taper consisting of Si rods integrated with a photonic crystal waveguide are presented.
Reyhaneh Jannesari   +5 more
doaj   +1 more source

More than meets the eye: associations of vaginal bacteria with gram stain morphotypes using molecular phylogenetic analysis. [PDF]

open access: yesPLoS ONE, 2013
Bacterial vaginosis (BV) is a highly prevalent condition associated with adverse health outcomes. Gram stain analysis of vaginal fluid is the standard for confirming the diagnosis of BV, wherein abundances of key bacterial morphotypes are assessed. These
Sujatha Srinivasan   +8 more
doaj   +1 more source

Colloidally dispersible activated carbons and yarn-like colloidal assemblies of hydrochar

open access: yesJCIS Open, 2023
It was hypothesized that activated carbons (ACs) prepared from hydrochar could be dispersed in solvents under certain conditions. The crude hydrochar formed by the hydrothermal carbonization (HTC) of glucose and was purified by dialysis.
Xia Wang, Wenming Hao, Niklas Hedin
doaj   +1 more source

Optimizing titanium implant nano-engineering via anodization

open access: yesMaterials & Design, 2022
Electrochemically anodized titanium-based implants with controlled titania nanotopography enables enhanced bioactivity. However, anodization optimizations have been restricted to polished flat Ti foils, while clinical implants are often micro-rough with ...
Tianqi Guo   +2 more
doaj   +1 more source

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