Results 51 to 60 of about 7,757,874 (295)

Three-Dimensional Reconstruction of Impact Crater Morphology During the Impact Process

IEEE Access
Employing continuous medium three-dimensional reconstruction technology, this study explores the morphological evolution of crater surfaces during impact processes in the field of particle technology, investigating numerical variations and evolution ...
Yizhuo Zheng, Wanqing Sun, Hui Yang, Ran Li   +3 more
doaj   +1 more source

Dynamics of shallow impact cratering

Physical Review E, 2005
We present data for the time-dependence of wooden spheres penetrating into a loose non-cohesive packing of glass beads. The stopping time is a factor of three longer than the time $d/v_\circ$ needed to travel the total penetration distance $d$ at the impact speed $v_\circ$. The acceleration decreases monotonically throughout the impact.
Kamien, Randall D, Ambroso, M. A, Durian, Douglas J   +2 more
openaire   +5 more sources

Nanofabricated Biomaterials Model Tumor Extracellular Matrix Topography

Advanced NanoBiomed Research, EarlyView.
The unique structure and composition of the tumor microenvironment and its associated extracellular matrix (ECM) exert profound effects on cancer cell behavior that are difficult to model in vitro. This perspective discusses the utility of nanofabricated biosubstrates, such as the novel collagen‐coated nanogrooved array, for recapitulating the ...
Vic Zamloot, JinSeok Park
wiley   +1 more source

Extraction of iron meteorites from the Barringer Meteor Crater based on remote sensing alteration information

地质科技通报, 2021
At present, there are more than 190 craters have been confirmed on the earth, and most of the simple impact craters with a diameter of less than 1 km are formed by iron impactor.There is a large amount of iron meteorite material around the impact crater ...
Jingyue Cui, Yusen Dong, Wenli Yue, Abudula-Abudukadier, Bangzheng Zhang   +4 more
doaj   +1 more source

Automated Spin‐Assisted Layer‐by‐Layer Epitaxy Produces Highly Oriented Mixed‐Linker MOF Thin Films

Angewandte Chemie International Edition, EarlyView.
An automated spin‐assisted layer‐by‐layer growth method enables rapid fabrication of highly oriented Zn2BDC2DABCO metal‐organic framework thin films under ambient conditions. Correlative characterization confirms excellent reproducibility, uniform film formation, and exceptional out‐of‐plane orientation exceeding 85%.
Eleonora Afanasenko, Benedetta Marmiroli, Behnaz Abbasgholi Nejad Asbaghi, Barbara Sartori, Giovanni Birarda, Chiaramaria Stani, Matjaž Finšgar, Peter E. Hartmann, Mark Bieber, Emma Walitsch, Rolf Breinbauer, Simone Dal Zilio, Sumea Klokic, Heinz Amenitsch   +13 more
wiley   +1 more source

A steeply-inclined trajectory for the Chicxulub impact

Nature Communications, 2020
The authors here present a 3D model that simulates the formation of the Chicxulub impact crater. Based on asymmetries in the subsurface structure of the Chicxulub crater, the authors diagnose impact angle and direction and suggest a steeply inclined (60°
G. S. Collins, N. Patel, T. M. Davison, A. S. P. Rae, J. V. Morgan, S. P. S. Gulick, IODP-ICDP Expedition 364 Science Party, Third-Party Scientists   +7 more
doaj   +1 more source

THE NEPSKY-1 IMPACT CRATER AND ITS FILL DEPOSITS ON THE BASEMENT ROOF OF THE SIBERIAN PLATFORM

Геодинамика и тектонофизика, 2020
In the Earth studies, discoveries and investigations of impact craters buried beneath thick sediments are sporadic so far and may still remain inefficient, unless geophysical surveys of the areas of interest are initiated. Such studies can provide useful
M. I. Gyokche, A. V. Plyusnin
doaj   +1 more source

Deciphering the Palimpsest: Chronological Uncertainty and the Interpretation of Mining Landscapes at Písečný vrch (Czech Republic)

Archaeological Prospection, EarlyView.
ABSTRACT We investigated the Písečný vrch (Czech Republic), a site exploited for quartz mining in both prehistoric times and the 20th century. Due to their morphological similarity across all mining periods, the differentiation between pits with archaeological potential and recent ones is challenging.
Jan Fišer, Petr Krištuf, Jan Kropáček, Vojtěch Barták, Lenka Starková, Vítězslav Moudrý   +5 more
wiley   +1 more source

Degradation Mechanisms and Efficiency of Heavily Cratered Regions on Ceres

The Planetary Science Journal
Ceres, the dwarf planet in the main asteroid belt, hosts heavily cratered surfaces where craters are continuously eroded, mainly due to impact bombardment, with a limited influence by nonimpact processes.
Reem Vitale, Masatoshi Hirabayashi
doaj   +1 more source

Formation mechanism of the Lidang circular structure in the Guangxi Province

Earth and Planetary Physics, 2019
The Lidang circular structure in the center of the Guangxi Province is about 8 km in diameter. This structure appears as an abnormal shallow depression that has disturbed the rather harmonic regional joint systems.
Pan Yan, ZhiYong Xiao, YiZhen Ma, YiChen Wang, Jiang Pu   +4 more
doaj   +1 more source