Results 101 to 110 of about 624,231 (327)

Solar Interior Rotation and its Variation

Living Reviews in Solar Physics, 2009
This article surveys the development of observational understanding of the interior rotation of the Sun and its temporal variation over approximately forty years, starting with the 1960s attempts to determine the solar core rotation from oblateness and ...
Howe Rachel
doaj  

Convection in the Sun [PDF]

International Astronomical Union Colloquium, 1990
AbstractThe present knowledge of the dynamics and structure of the solar convection zone is reviewed with the aim of checking current assumptions and conjectures against laboratory experiments and numerical modeling of thermal convection. Buoyancy is the only forcing considered. Rotation and magnetic fields are explicitly avoided.
openaire   +2 more sources

Selective Membrane for Non‐Aqueous Electrochemical Flow Cells

Advanced Functional Materials, EarlyView.
Sulfonated fixed charge functionalization is increased to improve the conductivity of a cation exchange membrane in a non‐aqueous electrochemical cell. Based on ex situ analyses, the material achieved the highest selectivity for this type of system to date.
Charles R. Leroux, Geoffrey M. Geise, Gary M. Koenig Jr   +2 more
wiley   +1 more source

Low-degree mantle convection with strongly temperature- and depth-dependent viscosity in a three-dimensional spherical shell

, 2005
A series of numerical simulations of thermal convection of Boussinesq fluid with infinite Prandtl number, with Rayleigh number $10^7$, and with the strongly temperature- and depth- dependent viscosity in a three-dimensional spherical shell is carried out
Akira Kageyama, Breuer, Bunge, Bunge, Bunge, Davies, Hager, Hansen, Harder, Harder, Harder, Kageyama, Konopliv, Masaki Yoshida, McNamara, Phillips, Rappaport, Ratcliff, Ratcliff, Ratcliff, Reese, Schubert, Schubert, Sleep, Smith, Smith, Solomatov, Solomatov, Stemmer, Tackley, Tackley, Trompert, Wessel, Yoshida, Yoshida, Zhang, Zhong, Zhong, Zhong   +38 more
core   +1 more source

Metamaterial Adhesives‐Integrated Triboelectric Nanogenerators with Enhanced and Programmable Charge Generation and Adhesion

Advanced Functional Materials, EarlyView.
A metamaterial adhesive‐integrated triboelectric nanogenerator (MetaAdh‐TENG) that integrates nonlinear cuts and a TENG in a flexible adhesive film is presented. The MetaAdh‐TENG simultaneously provides enhanced charge generation and strong adhesion by controlling crack propagation during peeling.
Hee Jin Lee, Dong Kwan Kang, Junghwa Kang, Changwook Lee, Michael D. Bartlett, Junyeob Yeo, Hoon Eui Jeong   +6 more
wiley   +1 more source

Convective Babcock-Leighton Dynamo Models

, 2012
We present the first global, three-dimensional simulations of solar/stellar convection that take into account the influence of magnetic flux emergence by means of the Babcock-Leighton (BL) mechanism.
Brown, Brown, Charbonneau, Cheung, Dikpati, Ghizaru, Hotta, Nelson, Racine, Rempel   +9 more
core   +1 more source

Enhancing Metal‐Support Interactions of Ru Catalysts via Relaxation of Oxygen Vacancies for Hydrogen Production

Advanced Functional Materials, EarlyView.
Designing stable Ru nanoparticle catalyst remains a critical challenge in electrochemical applications. Here, a strategy is presented to stabilize Ru catalysts by leveraging Ce‐doped ZrO2 supports (ZrCeO2‐x), which enhance catalyst durability and activity through electronic metal‐support interactions and stabilized oxygen vacancies.
Mansu Kim, Jonghwan Park, Hyuk Choi, Sohui Kim, Injoon Jang, Hyun You Kim, Namgee Jung, Sung Jong Yoo, Joseph T. Hupp, Dongmok Whang   +9 more
wiley   +1 more source

Magneto-convection [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
Convection is the transport of energy by bulk mass motions. Magnetic fields alter convection via the Lorentz force, while convection moves the fields via the curl( v × B ) term in the induction equation.
openaire   +2 more sources

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

Hydroxyethyl Starch, a Synthetic Colloid Used to Restore Blood Volume, Attenuates Shear-Induced Distortion but Accelerates the Convection of Sodium Hyaluronic Acid

Polysaccharides
Hyaluronic acid (HA) plays important roles in tissue hydration and the transport of fluid and solutes through the interstitium. Hydroxyethyl starch (HES) solution is a synthetic colloid solution used during surgery.
Tsuneo Tatara
doaj   +1 more source