Results 111 to 120 of about 14,324 (302)

RADIOSOUNDING-DERIVED CONVECTIVE PARAMETERS FOR THE ALCÂNTARA LAUNCH CENTER. doi: 10.5028/jatm.2009.0102211216

open access: yesJournal of Aerospace Technology and Management, 2011
Climatological features of convective parameters (K index, IK; 950 hPa K index, IK950; Showalter index, IS; lifted index, ILEV; total totals index, ITT; and convective available potential energy, CAPE) derived from 12 UTC radiosounding data collected at ...
Fernando Pereira de Oliveira   +1 more
doaj  

3D Printing Innovations in Polymeric Porous and Patterned Architecture

open access: yesAdvanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil   +13 more
wiley   +1 more source

Dayside flow bursts and high-latitude reconnection when the IMF is strongly northward [PDF]

open access: yes, 2006
The characteristics of dayside ionospheric convection are studied using Northern Hemispheric SuperDARN data and DMSP particle and flow observations when the interplanetary magnetic field (IMF) was strongly northward during 13:00–15:00 UT on 2 March 2002.
Tim K. Yeoman (7583066)   +17 more
core   +1 more source

In Situ Crystalline‐Amorphous Composite Oxide Structure Suppressing Thermal Wear Instability for Refractory Multi‐Principal Element Alloy

open access: yesAdvanced Functional Materials, EarlyView.
An effective strategy is developed to overcome the medium temperatures wear resistance degradation in refractory multi‐principal element alloys. By utilizing chemical short‐range ordering to trigger oxygen‐induced amorphization, a composite oxide structure is formed, which combines high hardness with robust stiffness.
Xuhui Pei   +7 more
wiley   +1 more source

Use of the spectral clustering to determine coherent precipitation regions in Turkey for the period 1929-2007

open access: yes, 2010
In this study, we suggest the spectral clustering (SC), a hybrid clustering technique based on singular value decomposition (SVD) and K-means for grouping features of precipitation totals of 96 stations in Turkey.
Tatlı, Hasan   +3 more
core   +1 more source

Spectroscopic Investigation of Polysulfide Redox Evolution in Catholyte Solutions for Potassium–Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Potassium–sulfur batteries are investigated using UV–vis spectroscopy to track the evolution of potassium polysulfide species at elevated temperature. The study reveals sulfur radical anions as key intermediates and shows how solvent composition and cell design influence polysulfide stability, redox behavior, and cycling performance, providing insights
Chiara Morini   +7 more
wiley   +1 more source

Precipitation stages in a 316L austenitic stainless steel

open access: yes, 2003
Detailed studies of precipitation in type 316L (UNS S31603) austenitic stainless steel were carried out by using a combination of differential scanning calorimetry, electrical resistivity measurement and transmission electron microscopy.
DEY, GK   +7 more
core   +1 more source

Applications of QC and Merged Doppler Spectral Density Data from Ka-Band Cloud Radar to Microphysics Retrieval and Comparison with Airplane in Situ Observation

open access: yesRemote Sensing, 2019
The new Chinese Ka-band solid-state transmitter cloud radar (CR) uses four operational modes with different pulse widths and coherent integration and non-coherent integration numbers to meet long-term cloud measurement requirements.
Liping Liu   +4 more
doaj   +1 more source

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

open access: yesAdvanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda   +9 more
wiley   +1 more source

Statistical characteristics of Doppler spectral width as observed by the conjugate SuperDARN radars [PDF]

open access: yes, 2002
International audienceWe performed a statistical analysis of the occurrence distribution of Doppler spectral width around the day-side high-latitude ionosphere using data from the conjugate radar pair composed of the CUTLASS Iceland-East radar in the ...
Milan, S. E.   +23 more
core   +1 more source

Home - About - Disclaimer - Privacy