Results 131 to 140 of about 632,753 (317)

Step‐Ladder Bioprinting to Align Collagen Fibers for Anisotropic Tissue Fabrication

open access: yesSmall, EarlyView.
The step‐ladder printing platform includes successive segments of channels with varying widths in a custom barrel design. This design allows for improved anisotropy of collagen fibers during extrusion. To demonstrate its effectiveness, corneal constructs with high transparency and shape fidelity, as well as articular cartilage constructs, displaying ...
Ilayda Namli   +8 more
wiley   +1 more source

Quantum correlations in a gravitational collapse simulation with SpheriCo.jl

open access: yesJournal of High Energy Physics
We report on work using a newly developed code, SpheriCo.jl, that computes the gravitational collapse of a spherical scalar field, where the scalar can be either a classical field, or a quantum field operator.
Benjamin Berczi   +3 more
doaj   +1 more source

Gravitational collapse of vacuum gravitational field configurations

open access: yesJournal of Mathematical Physics, 1995
This paper proves a theorem about the existence of an apparent horizon in general relativity, which applies equally well to vacuum configurations and matter configurations. The theorem uses the reciprocal of the surface-to-volume ratio of a region on a space slice to measure the radius of the region, and uses the minimum value Kmin of certain ...
openaire   +2 more sources

Selective Wettability–Driven Evaporation‐Enhanced Redox Cycling for Robust and Ultrasensitive Detection of Viral Particles

open access: yesSmall Methods, EarlyView.
ABSTRACT Timely detection of viral infections, particularly in settings outside centralized laboratories, is essential for controlling outbreaks. Small electrochemical biosensors are appealing because they are fast, require microliter sample volumes, and can be integrated into portable devices.
Pouya Soltan Khamsi   +3 more
wiley   +1 more source

Nonequilibrium thermodynamics of gravitational objective-collapse models

open access: yesPhysical Review Research
We investigate the entropy production in the Diósi-Penrose (DP) model, one of the most extensively studied gravity-related collapse mechanisms, and one of its dissipative extensions.
Simone Artini   +3 more
doaj   +1 more source

Gravitational Collapse - 8T

open access: yes, 2021
By analyzing the Primorial coupling constants and in particular the term of gravity in the second representation, it is possible to analyze the gravitational collapse of a star, similar to the process of Quark confinement.
openaire   +1 more source

Experimental Investigations on the Impact of Operational Conditions on Bubble Dynamics and the Resulting Vibrations in Gas‐Stirred Ladles

open access: yessteel research international, EarlyView.
This study applies sensitive vibration sensors to investigate gas bubble behavior in liquid metal during argon injection. Analysis of vibration signals provides insights into bubble evolution and the influence of gas flow and surface pressure. The results provide a basis for improved vibration‐based two‐phase flow models, enhancing accuracy in ...
Konstantinos Rigas   +3 more
wiley   +1 more source

Gravitational collapse in energy-momentum squared gravity: Nature of singularities

open access: yesNuclear Physics B
In this paper we explore a collapsing scenario in the background of energy-momentum squared gravity (EMSG). EMSG claims to have terms that originate from the quantum gravity effects mimicking loop quantum gravity.
Prabir Rudra
doaj   +1 more source

Micropatterned Surfaces with Unidirectional Wetting Properties for Liquid Transport

open access: yesSmall Structures, EarlyView.
Micropatterned surfaces that guide droplets in a single direction are gaining attention for their role in liquid transport. This review explores how surface designs enable such behavior, from gravity‐driven flow to stimulus‐responsive movement. It also discusses fabrication techniques, design challenges, and emerging strategies to advance directional ...
Elham Lori Zoudani   +5 more
wiley   +1 more source

Innovative development and structural behavior of hollow columns using inflatable molds

open access: yesStructural Concrete, EarlyView.
Abstract This study introduces a novel approach for constructing hollow columns using precast (PC) methods enhanced by inflatable air tubes as internal molds. The proposed method addresses practical challenges in conventional hollow column construction, such as limited constructability, high production cost, and interference between internal molds and ...
Soo Hyung Kim   +3 more
wiley   +1 more source

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