Results 121 to 130 of about 717,972 (344)

Odds of observing the multiverse

, 2010
Eternal inflation predicts our observable universe lies within a bubble (or pocket universe) embedded in a volume of inflating space. The interior of the bubble undergoes inflation and standard cosmology, while the bubble walls expand outward and collide
Dahlen, Alex
core   +1 more source

Bubble optics [PDF]

Applied Optics, 2019
Starting from a peculiar image observed below a bubble that is floating at a water–air interface, this paper analyzes several optical properties of these special types of refracting objects (termed bubble axicons). Using mainly geometrical optics, their relation to common axicons, the shadow-sausage effect, and elementary optical catastrophes (caustics)
openaire   +3 more sources

Tailored Polymer‐Based SEI via iCVD for Stable Zinc Metal Anodes in Aqueous Batteries through Modulation of Hydrophilicity and Elasticity to Inhibit Hydrogen Evolution Reactions

Advanced Functional Materials, EarlyView.
A stretchable and superhydrophobic pF1V1 polymer layer is conformally coated on Zn metal via iCVD, forming a water‐repelling interphase that inhibits the hydrogen evolution reaction. This tailored interface maintains excellent electrolyte compatibility while suppressing dendrite growth, thereby enhancing the long‐term electrochemical stability of Zn ...
Jaeyeon Lee, Moonwon Lee, Boyeon Kim, Hyunjin Jung, Kanghoon Yim, Myunghyun Ryu, Gi Su Doo, Jae‐Hak Choi, Jiyun Heo, Sung Gap Im, Kyu‐Nam Jung, Myung Seok Oh, Jinhong Lee   +12 more
wiley   +1 more source

Impact of an air bubble within the syringe on test results obtained with a modern blood gas analyzer [PDF]

Journal of Medical Biochemistry
Background: Minimizing air aspiration by carefully filling blood gas syringes is crucial to prevent air contamination from causing undesirable variations in gasses and other molecules.
Pighi Laura, Salvagno Gian Luca, Ferraro Roberta, Celegon Giovanni, Henry Brandon M., Lippi Giuseppe   +5 more
doaj   +1 more source

A Bubble Theorem

Mathematics Magazine, 2000
Latex style convention for mathematics ...
Oscar Bolina, J. Rodrigo Parreira
openaire   +3 more sources

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source

Perimeter-Minimizing Triple Bubbles in the Plane and the 2-Sphere

Analysis and Geometry in Metric Spaces, 2019
We use continuous and discrete unification to prove that standard triple bubbles in ℝ2 and 𝕊2 are the minimizers of perimeter, among all clusters (Definition 2.3) enclosing the same triple of areas.
Lawlor Gary R.
doaj   +1 more source

Effects of inclination angle of a heated plate on natural-convection heat transfer enhancement by millimeter bubbles

Nihon Kikai Gakkai ronbunshu, 2014
This paper presents the temperature and velocity measurements to clarify effects of inclination angle of a heated plate φ on natural-convection heat transfer enhancement by millimeter bubbles.
Atsuhide KITAGAWA, Tatsuaki OKU, Takuya OZATO, Yuichi MURAI   +3 more
doaj   +1 more source

Understanding Postdeposition Treatments of Hole‐Transporting Self‐Assembling Molecules for Perovskite/Silicon Tandem Solar Cells

Advanced Functional Materials, EarlyView.
The influence of postdeposition treatments on the formation of self‐assembling (mono)layers commonly utilized as hole transport layers in perovskite‐based solar cells is thoroughly investigated. The implementation of a washing step and an annealing step at temperatures exceeding the current literature standards leads to an enhanced layer quality and ...
Jann B. Landgraf, Yashika Gupta, Adi Prasetio, Stefan Lange, Christoph Messmer, Christian Schwarz, Oliver Fischer, Sithisak Chanthalavong, Oussama Er‐raji, María B. Camarada, Stefaan De Wolf, Patricia S. C. Schulze, Anna Fischer, Stefan W. Glunz, Juliane Borchert   +14 more
wiley   +1 more source

Dynamics of a Spherical Vapor/Gas Bubble in Varying Pressure Fields

Journal of Fluid Science and Technology, 2008
A mathematical model is developed to simulate the radial motion of cavitation bubbles. The heat and mass transports including phase change are formulated precisely.
Hisanobu KAWASHIMA, Masaharu KAMEDA
doaj   +1 more source