Results 71 to 80 of about 2,434,328 (286)

Axial variation of color and Shore D hardness in Cedrus libani wood

open access: yesMaderas: Ciencia y Tecnología
This study examines the limited understanding of axial variation in color and hardness properties of Cedrus libani wood. In this context, the variation in color parameters and Shore D hardness across heart, heartwood, and sapwood sections was ...
Uğur Özkan   +5 more
doaj   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Axial variations in the magnetic field of superconducting dipoles and quadrupoles [PDF]

open access: yesProceedings of International Conference on Particle Accelerators, 2002
A periodic variation in the magnetic field along the axis has been observed in both quadrupole and dipole magnets made from superconducting cable. This oscillation is present in all components of the field and has a wavelength equal to the transposition length of the cable.
Ghosh, A. K.   +2 more
openaire   +1 more source

Axial Force Negative Stiffness in Axial‐Flux Electric Machines

open access: yesIET Electric Power Applications
This paper examines the axial force negative stiffness of the induction and permanent magnet (PM) axial‐flux machines. Simplified analytical models are used to identify the key normalised machine parameters which affect the variation of the axial force ...
Wen Liang Soong   +4 more
doaj   +1 more source

Epigenetic reprogramming of lineage switching in cancer

open access: yesFEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı   +4 more
wiley   +1 more source

Theoretical calculation and experimental verification of the elastic angle of a cycloid ball planetary transmission based on the axial pretightening force

open access: yesAdvances in Mechanical Engineering, 2017
Mechanical models of deceleration meshing pair and equal-speed meshing pair are derived using the rigidity coefficient and static equilibrium conditions of plate (fixed plate, output shaft, or plane plate).
Ronggang Yang, Zijun An
doaj   +1 more source

Experimental Study on Mechanical Properties and Seepage Laws of Raw Coal under Variable Loading and Unloading Rates

open access: yesGeofluids, 2021
This manuscript studied the effects of variable axial pressure loading rate and variable confining pressure unloading rate on the deformation behavior and seepage characteristics of raw coal under alternate loading and unloading of axial pressure and ...
Kangwu Feng   +3 more
doaj   +1 more source

Thermal Modelling of the Ventilation and Cooling inside Axial Flux Permanent Magnet Generators [PDF]

open access: yes, 2010
Axial flux permanent magnet generators are of particular interest for power generation in harsh and confined conditions. Due to their compactness and high power density, the ventilation and cooling inside axial flux permanent magnet generators have ...
LIM, CHIN,HONG, Lim, Chin Hong
core  

Stochastic axial compressor variable geometry schedule optimisation [PDF]

open access: yes, 2011
The design of axial compressors is dictated by the maximisation of flow efficiency at on design conditions whereas at part speed the requirement for operation stability prevails.
Singh, R.   +7 more
core   +1 more source

Study on the Time-Varying Stiffness Characteristics of Four-Point Contact Ball Bearings

open access: yesLubricants
This paper takes a four-point contact ball bearing of a wind turbine as the research object, analyzes the force and deformation relationship under the combined action of axial load and radial load, obtains the load distribution of rolling elements, and ...
Runlin Chen   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy