Results 111 to 120 of about 175,846 (341)

Nonlinearity and Domain Switching in a 3D‐Printed Architected Ferroelectric

Advanced Engineering Materials, EarlyView.
By combining functional properties measurement with in situ 2D X‐ray microdiffraction experiments, it is shown that nonlinear polarization and strain responses of a 3D‐printed architected ferroelectric are driven by localized progression of domain switching, which depends on nonuniform electric‐field distribution as well as evolving stress fields.
Abhijit Pramanick, Chaimae Babori, Frédéric Albertini, Frederik Holm Gjørup, Aurore Brézard Oudot, Ashutosh Kumar, Mads Ry Vogel Jørgensen, Laurent Daniel   +7 more
wiley   +1 more source

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

Advanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör, Moritz Grünewald, Kevin Popp, Ihsan Murat Kusoglu, Stephan Barcikowski, Stan Gann, Thomas Schuffenhauer, Martin Bastian, Claas Bierwisch, Johannes Rudloff   +9 more
wiley   +1 more source

Titan's Atmospheric Temperatures, Winds, and Composition

Science, 2005
Temperatures obtained from early Cassini infrared observations of Titan show a stratopause at an altitude of 310 kilometers (and 186 kelvin at 15°S). Stratospheric temperatures are coldest in the winter northern hemisphere, with zonal winds reaching 160 meters per second.
Flasar, Michael, Achterberg, Richard K., Conrath, Barney J., Gierasch, Peter J., Kunde, Virgil G., Nixon, Conor A., Bjoraker, Gordon L., Jennings, Donald E., Romani, Paul N., Simon-Miller, Amy A., Bézard, Bruno, Coustenis, Athéna, Irwin, Patrick G. J., Teanby, Nicholas A., Brasunas, J., Pearl, John C., Segura, M. E., Carlson, Ronald C., Mamoutkine, Andrei, Schinder, P. J., Barucci, Maria Antonella, Courtin, Régis, Fouchet, Thierry, Gautier, Daniel, Lellouch, Emmanuel, Marten, André, Prangé, Renée, Vinatier, Sandrine, Strobel, Darell, Calcutt, Simon B., Read, Peter L., Taylor, Frederic W., Bowles, N., Samuelson, Robert E., Orton, Glenn S., Spilker, Linda J., Owen, Tobias C., Spencer, John R., Showalter, Mark R., Ferrari, C., Abbas, Mian M., Raulin, François, Edgington, Scott G., Ade, Peter A., Wishnow, E. H.   +44 more
openaire   +6 more sources

Aerosol Optical Properties Based on Ground and Satellite Retrievals during a Serious Haze Episode in December 2015 over Beijing

Atmosphere, 2016
An extreme haze event occurred in the Beijing area from 17 to 23 December 2015. Ground-based measurements and satellite observations during this event were used to further our understanding of the formation process of haze pollution and aerosol optical ...
Ke Gui, Huizheng Che, Quanliang Chen, Linchang An, Zhaoliang Zeng, Zengyuan Guo, Yu Zheng, Hong Wang, Yaqiang Wang, Jie Yu, Xiaoye Zhang   +10 more
doaj   +1 more source

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

Advanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing—Part II: Processability by Powder Bed Fusion of Metals Using a Laser Beam

Advanced Engineering Materials, EarlyView.
In this manuscript, the processability of X2CrNiMo17‐12‐2 powder coated with silicon carbide, silicon, and silicon nitride nanoparticles is investigated. The amount of nanoparticles varies from 0.25 to 1 vol%. By coating the powder feedstock material with nanoparticles, an enlargement of the process window and an increase in the build rate are achieved.
Nick Hantke, Tim R. Brocksieper, Arne Lüddecke, Tobias Grimm, Arno Kwade, Jan T. Sehrt   +5 more
wiley   +1 more source

The Composition and Chemistry of Titan’s Atmosphere

ACS Earth and Space Chemistry
177 pages, 45 ...
openaire   +3 more sources

Composition of Atmospheric Precipitation: II. Sulfur, chloride, iodine compounds. Bibliography [PDF]

Tellus A: Dynamic Meteorology and Oceanography, 1952
C. Sulfur in rainwater Unlike the nitrogen most sulfur determinations in rainwater have been carried out comparatively recently. The greater part of the investigations were carried out in the U.S.A. where an extensive survey of the contribution of atmospheric sulfur to the soil has been made for agricultural purposes.
openaire   +4 more sources

Geometry‐Assisted Phase Selection: Interplay of Phase Heterogeneity and Geometry in Gyroid Shell Metamaterials Printed with 17‐4 PH Stainless Steel

Advanced Engineering Materials, EarlyView.
This study explores geometry‐driven phase evolution in gyroid shell metamaterials made via laser powder bed fusion of 17‐4 precipitation hardened stainless steel. Locally hardened regions develop along the primary loading paths in the structure, which finite element analysis and geometric considerations link to enhanced gyroid strength.
Julia T. Pürstl, Brandon Fields, Patrick Ziemke, Nicolò M. della Ventura, Kate M. Ainger, Diran Apelian, Daniel S. Gianola, Matthew R. Begley, Lorenzo Valdevit   +8 more
wiley   +1 more source

Changes in ambient air quality and atmospheric composition and reactivity in the South East of the UK as a result of the COVID-19 lockdown. [PDF]

Sci Total Environ, 2021
Wyche KP, Nichols M, Parfitt H, Beckett P, Gregg DJ, Smallbone KL, Monks PS.   +6 more
europepmc   +1 more source