Results 41 to 50 of about 154,413 (348)

Planetary wave activity in the polar lower stratosphere [PDF]

Atmospheric Chemistry and Physics, 2010
Temperature data from the COSMIC GPS-RO satellite constellation are used to study the distribution and variability of planetary wave activity in the low to mid- stratosphere (15–40 km) of the Arctic and Antarctic from September 2006 until March 2009 ...
S. P. Alexander, M. G. Shepherd
doaj  

On the dynamics of the spring seasonal transition in the two hemispheric high-latitude stratosphere

Tellus: Series A, Dynamic Meteorology and Oceanography, 2019
The seasonal transition is one of the main features of the atmospheric general circulation and is particularly manifest in the high-latitude stratosphere. To explore the dynamics of stratospheric seasonal transition in both hemispheres, the observational
Tongmei Wang, Qiong Zhang, Abdel Hannachi, Yihua Lin, Toshihiko Hirooka   +4 more
doaj   +1 more source

Occurrence and Variations of Middle and Low Latitude Sporadic E Layer Investigated With Longitudinal and Latitudinal Chains of Ionosondes

Space Weather, 2021
A longitudinal chain and a latitudinal chain of ionosondes, located at Yakutsk (129.60°E, 62.00°N), Mohe (122.37°E, 53.50°N), Beijing (116.25°E, 40.25°N), Wuhan (114.61°E, 30.53°N), Sanya (109.42°E, 18.34°N), I‐Cheon (127.54°E, 37.14°N), San Vito (17.80 ...
Qiong Tang, Jiaqi Zhao, Zhibin Yu, Yi Liu, Lianhuan Hu, Chen Zhou, Zhengyu Zhao, Xueshang Feng   +7 more
doaj   +1 more source

The Guiding Role of Rossby Wave Energy Dispersion Theory for Studying East Asian Monsoon System Dynamics

Atmosphere, 2023
This paper is written to commemorate the 10th anniversary of academician Ye Duzheng (Yeh T.C.) pass away and his great contributions to the development of atmospheric dynamics.
Ronghui Huang, Jingliang Huangfu, Yong Liu, Riyu Lu   +3 more
doaj   +1 more source

Full-waveform inversion reveals diverse origins of lower mantle positive wave speed anomalies

Scientific Reports
Determining Earth’s structure is paramount to unravel its interior dynamics. Seismic tomography reveals positive wave speed anomalies throughout the mantle that spatially correlate with the expected locations of subducted slabs. This correlation has been
Thomas L. A. Schouten, Lars Gebraad, Sebastian Noe, Anna J. P. Gülcher, Solvi Thrastarson, Dirk-Philip van Herwaarden, Andreas Fichtner   +6 more
doaj   +1 more source

Stationary planetary wave propagation in Northern Hemisphere winter – climatological analysis of the refractive index [PDF]

Atmospheric Chemistry and Physics, 2007
The probability density on a height-meridional plane of negative refractive index squared f(nk2<0) is introduced as a new analysis tool to investigate the climatology of the propagation conditions of stationary planetary waves based on NCEP/NCAR ...
Q. Li, H.-F. Graf, H.-F. Graf, M. A. Giorgetta   +3 more
doaj  

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Density Waves Excited by Low-Mass Planets in Protoplanetary Disks I: Linear Regime

, 2011
Density waves excited by planets embedded in protoplanetary disks play a central role in planetary migration and gap opening processes. We carry out 2D shearing sheet simulations to study the linear regime of wave evolution with the grid-based code ...
Bryden, Cristobal Petrovich, D'Angelo, D'Angelo, D'Angelo, Fleming, Goodman, James M. Stone, Li, Lin, Muto, Papaloizou, Papaloizou, Rafikov, Rafikov, Rafikov, Roman R. Rafikov, Ruobing Dong, Stone, Stone, Tanaka, Toro, Yu   +22 more
core   +1 more source

Porosity Engineering of MXene Architectures: Toward High‐Performance Aqueous Electrochemical Energy Storage

Advanced Materials, EarlyView.
This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu, Jieming Chen, Xue Peng, Huilin Zhang, Ling Kang, Ming Ma, Zhaoling Li, Yusuke Yamauchi, Bin Ding   +8 more
wiley   +1 more source

Wet Ball Milling Synthesis of Iron Oxide Nanoparticles for High‐Efficiency, Controllable Magnetic Hyperthermia in Ovarian Cancer

Advanced Materials Technologies, EarlyView.
A wet ball‐milling method is presented to synthesize iron magnetic nanoparticles and evaluate their magnetic hyperthermia performance. Optimized particles (∼270 nm, Ms ∼114 emu/g) achieve ∼50°C heating under clinically safe alternating magnetic fields, while pulsed‐field operation enables controlled temperature regulation (∼30°C).
Shahriar Mostufa, Bahareh Rezaei, Md Shahriar, Karla Mercedes Paz González, Anil Kumar, Changxue Xu, Yun Suk Eo, Ioannis H. Karampelas, Jenifer Gómez‐Pastora, Rui He, Kai Wu   +10 more
wiley   +1 more source