Results 91 to 100 of about 8,008,633 (316)

STUDY ON LIFE PREDICTION AND FATIGUE TEST OF ZM6 MATERIAL WITH IMPACT PIT

Jixie qiangdu, 2021
The smooth specimens,notched specimens and impact crater specimens of ZM6 material were prepared. The fatigue test of these specimens was carried out,and the fatigue life of these specimens under different stress levels was obtained.Based on the theory ...
LI Jian, YANG SuSong, YANG XianKun, WAN ZhenHua, HU WeiPing   +4 more
doaj  

Following Changes at the Solid/Liquid Interface for Large Microplastic Particles by Streaming Potential

Chemistry–Methods, EarlyView.
The surface chemistry of commercial, fragmented, and artificially weathered microplastic particles is characterized by the streaming potential technique. The streaming potential technique allows to study the zeta‐potential of particles too big for electrophoretic mobility.
Matthias B. Engelhardt, Daniel Wagner, Mohsen Zarebanadkouki, Nora Meides, Christian Schulbert, Martin G. J. Löder, Nicolas Helfricht, Seema Agarwal, Andrea Carminati, Peter Strohriegl, Jürgen Senker, Christian Laforsch, Georg Papastavrou   +12 more
wiley   +1 more source

Impact of large‐loop excision of the transformation zone on cervical morphology: A prospective observational study

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objectives To evaluate the impact of large‐loop excision of the transformation zone (LLETZ) on cervical dimensions, to identify influencing factors on cervical regeneration and to verify the concordance between ultrasonographic techniques for assessing cervical volume.
Flávia Zero Soares, Helmer Herren, Patrícia Pereira dos Santos Melli, Marília Veccechi Bijos Zaccaro, Silvana Maria Quintana   +4 more
wiley   +1 more source

Boltish Impact Structure and its impact-melting rocks

Геофизический журнал, 2011
The Boltysh crater in the central part of the Ukrainian Shield is a complex impact structure composed by a deep inner crater with a central uplift and a peripheral depression.
E. P. Gurov, S. B. Shekhunova, V. V. Permyakov   +2 more
doaj   +1 more source

Progress in Resource Evaluation Using a Handheld Raman Instrument Developed for Astronaut Missions

Journal of Raman Spectroscopy, EarlyView.
Analogue studies were undertaken using a prototype, handheld Raman spectrometer (developed for astronaut usage on the moon) to collect data that would indicate the presence of water and help develop the technology to search for valuable trace elements (such as lithium and caesium).
J. G. T. Armstrong, M. McHugh, J. Parnell, H. N. Lerman, A. Moral, I. B. Hutchinson   +5 more
wiley   +1 more source

Ries impact deposits in the North Alpine Foreland Basin of Germany as a terrestrial analog site for impact-produced seismites and sand spikes on planet Mars

AIMS Geosciences
The North Alpine foreland basin (NAFB) in Germany is characterized by various types of sedimentologic features that make it an excellent terrestrial analog of regions affected by high-energy asteroid impact-quakes on Mars.
Elmar Buchner, Volker J Sach, Martin Schmieder   +2 more
doaj   +1 more source

Single‐Pulse Nanomorphology Governs Laser‐Induced Periodic Surface Structure Formation on Metals

Laser &Photonics Reviews, EarlyView.
Ultrashort pulse ablation enables generation of self‐organized periodic structures, where evolving nanomorphology controls pulse‐to‐pulse feedback. In noble metals, nanospikes form after the first pulse and localize surface waves, preventing periodic field distributions and thus suppressing their formation.
Nicolas Thomae, Darshit Jangid, Maximilian Spellauge, Constanze Eulenkamp, Evgeny Gurevich, Christian Schwalb, Heinz P. Huber, David Redka   +7 more
wiley   +1 more source

Theoretical Research Progress in High-Velocity/Hypervelocity Impact on Semi-Infinite Targets

Shock and Vibration, 2015
With the hypervelocity kinetic weapon and hypersonic cruise missiles research projects being carried out, the damage mechanism for high-velocity/hypervelocity projectile impact on semi-infinite targets has become the research keystone in impact dynamics.
Yunhou Sun, Cuncheng Shi, Zheng Liu, Desheng Wen   +3 more
doaj   +1 more source

Holocene impact craters on Earth

Miscellanea Geographica, 2023
Abstract Impact craters are formed by collisions of cosmic bodies moving with hypervelocity. The formation of these features is not restricted to the distant geological past; new structures are constantly being created and at least 13 confirmed impact craters and crater fields have formed during the Holocene alone.
openaire   +2 more sources

“Seeing” Periodic Structures Emerge: Ultrafast Bright‐ and Dark‐Field Microscopy During Femtosecond Laser Interference Patterning of Silicon

Laser &Photonics Reviews, EarlyView.
We report an ultrafast bright‐ and dark‐field pump‐probe microscopy technique combined with an interference patterning system to imprint amorphous and ablative line‐like structures with micrometer period in crystalline silicon using single femtosecond laser pulses.
Irene Solana, Jan Siegel
wiley   +1 more source