Results 71 to 80 of about 78,366 (275)

Bioinspired composite segmented armour: Numerical simulations

Journal of Materials Research and Technology, 2019
Nature has evolved ingenious armour designs, like the flexible carapaces of armadillo and boxfish consisting of hexagonal segments connected by collagen fibres, that serve as bioinspiration for modern ballistic armours.
Pedro Miranda, Antonia Pajares, Marc A. Meyers   +2 more
doaj   +1 more source

Hybrid Convolutional Neural Network‐Analytical Model for Prediction of Line Edge Roughness‐Induced Performance Variations in Fin‐Shaped Field‐Effect Transistor Devices and SRAM

Advanced Intelligent Systems, EarlyView.
This work presents a hybrid model for predicting the electrical characteristics of fin‐shaped field‐effect transistor devices and SRAM with line edge roughness. The model consists of a convolutional neural network (CNN) and an analytical model that simulates the electrical characteristics of transistors using the outputs of CNN, enabling fast and ...
Jaehyuk Lim, Myongjin Kim, Changwoo Han, Hyoung Won Baac, Changhwan Shin   +4 more
wiley   +1 more source

Trajectory analysis for the nucleus and dust of comet C/2013~A1 (Siding Spring)

, 2014
Comet C/2013 A1 (siding Spring) will experience a high velocity encounter with Mars on October 19, 2014 at a distance of 135,000 km +- 5000 km from the planet center. We present a comprehensive analysis of the trajectory of both the comet nucleus and the
Chesley, Steven R., Chodas, Paul W., Farnham, Tony L., Farnocchia, Davide, Kelley, Michael S. P., Tricarico, Pasquale   +5 more
core   +1 more source

Hydrodynamics of the stream-disk impact in interacting binaries [PDF]

, 1997
We use hydrodynamic simulations to provide quantitative estimates of the effects of the impact of the accretion stream on disks in interacting binaries. For low accretion rates, efficient radiative cooling of the hotspot region can occur, and the primary
Billington I., Bruch A., Frank J., Harlaftis E. T., Hellier C., Hellier C., Mario Livio, Meyer-Hofmeister E., Murray J. R., Philip J. Armitage, Rozcyczka M., Shakura N. I., van den Heuvel E. P. J., Warner M., Whitehurst R., Whitehurst R., Wood J., Wood J.   +17 more
core   +2 more sources

Phase Separation of Nucleic Acids: Mechanisms, Properties, and Applications

Angewandte Chemie International Edition, EarlyView.
Recent discoveries have shown that single‐stranded long‐chain nucleic acids can undergo temperature‐induced phase separation, enabling formation of micrometer‐sized condensates. This Minireview discusses the current mechanistic understanding of this phenomenon, highlights strategies for controlling the physical and chemical properties of these ...
Weixiang Chen, Johann Fritzen, Andreas Walther   +2 more
wiley   +1 more source

COMPUTATIONAL BALLISTIC IMPACT ANALYSIS OF AIRCRAFT ARMORS

Havacılık ve Uzay Teknolojileri Dergisi, 2017
Lightweight and ballistic resistance are significant parameters in the design of aircraft armors. Aircraft should not compromise the payload or its maneuverability due to the armors added to the system.
Seher Eken, A.Kadir Yavuz, Stuart Leigh Phoenix   +2 more
doaj  

A hybrid approach of NiP coating and STF impregnation of UHMWPE fabric for conductive soft body armor

Journal of Materials Research and Technology
To enhance the ballistic impact performance and impart electrical conductivity into soft armor material made up of UHMWPE fabric, a novel hybrid technique has been devised and incorporated.
Anand Biradar, S. Arulvel, Jayakrishna Kandasamy   +2 more
doaj   +1 more source

Towards the azimuthal characteristics of ionospheric and seismic effects of "Chelyabinsk" meteorite fall according to the data from coherent radar, GPS and seismic networks

, 2015
We present the results of a study of the azimuthal characteristics of ionospheric and seismic effects of the meteorite 'Chelyabinsk', based on the data from the network of GPS receivers, coherent decameter radar EKB SuperDARN and network of seismic ...
Bakhtiyarov, V. F., Berngardt, O. I., Dobrynina, A. A., Kusonsky, O. A., Kutelev, K. A., Perevalova, N. P., Shestakov, N. V., Zagretdinov, R. V., Zherebtsov, G. A.   +8 more
core   +1 more source

Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint

The Anatomical Record, EarlyView.
Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler, Benjamin Flaum, Armita Razieh Manafzadeh, Viktoriia Kamska, Kanmani Chandra Rajan, Maria Jose Robles Malagamba, Ruien Hu, Daniel Baum, Mason N. Dean   +8 more
wiley   +1 more source

On the simulation of ballistic shock loads [PDF]

Blast or penetrator-impact induced shocks are characterized by high acceleration levels, particularily in the higher frequency range and for a short time duration.
Hollburg, Uwe
core   +1 more source