keyword
MENU ▼
Read by QxMD icon Read
search

Ballistic

keyword
https://www.readbyqxmd.com/read/28339264/anomalous-transport-in-the-superfluid-fluctuation-regime
#1
Shun Uchino, Masahito Ueda
Motivated by a recent experiment in ultracold atoms [S. Krinner et al., Proc. Natl. Acad. Sci. U.S.A. 113, 8144 (2016)PNASA60027-842410.1073/pnas.1601812113], we analyze transport of attractively interacting fermions through a one-dimensional wire near the superfluid transition. We show that in a ballistic regime where the conductance is quantized in the absence of interaction, the conductance is renormalized by superfluid fluctuations in reservoirs. In particular, the particle conductance is strongly enhanced, and the conductance plateau is blurred by emergent bosonic pair transport...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28335270/review-of-recent-developments-on-using-an-off-lattice-monte-carlo-approach-to-predict-the-effective-thermal-conductivity-of-composite-systems-with-complex-structures
#2
REVIEW
Feng Gong, Hai M Duong, Dimitrios V Papavassiliou
Here, we present a review of recent developments for an off-lattice Monte Carlo approach used to investigate the thermal transport properties of multiphase composites with complex structure. The thermal energy was quantified by a large number of randomly moving thermal walkers. Different modes of heat conduction were modeled in appropriate ways. The diffusive heat conduction in the polymer matrix was modeled with random Brownian motion of thermal walkers within the polymer, and the ballistic heat transfer within the carbon nanotubes (CNTs) was modeled by assigning infinite speed of thermal walkers in the CNTs...
July 30, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334529/ballistic-one-dimensional-inas-nanowire-cross-junction-interconnects
#3
Johannes Gooth, Mattias Borg, Heinz Schmid, Vanessa Schaller, Stephan Wirths, Kirsten E Moselund, Mathieu Luisier, Siegfried Karg, Heike Riel
Coherent interconnection of quantum bits remains an ongoing challenge in quantum information technology. Envisioned hardware to achieve this goal is based on semiconductor nanowire (NW) circuits, comprising individual NW devices that are linked through ballistic interconnects. However, maintaining the sensitive ballistic conduction and confinement conditions across NW intersections is a non-trivial problem. Here, we go beyond the characterization of a single NW device and demonstrate ballistic 1D quantum transport in InAs NW cross-junctions, monolithically integrated on Si...
March 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28328683/surgical-support-during-the-terrorist-attacks-in-paris-13-november-2015-experience-at-b%C3%A3-gin-military-teaching-hospital
#4
Olivier Barbier, Brice Malgras, Camille Choufani, Antoine Bouchard, Didier Ollat, Gilbert Versier
BACKGROUND: Recent conflicts have allowed the French Army Health Service to improve management quality for wartime-injured people during military operations. On 13 November 2015, it was in Paris that France was directly attacked and Bégin Military Teaching Hospital, like several hospitals in Paris, had to face a large number of gunshot victims. Thanks to our operational experience, injured people hospitalized in military hospitals benefited from a management based on triage and damage control (DC) principles...
March 21, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28326233/fabrication-of-black-gold-coatings-by-glancing-angle-deposition-with-sputtering
#5
Alan Vitrey, Rafael Alvarez, Alberto Palmero, María Ujué González, José Miguel García-Martín
The fabrication of black-gold coatings using sputtering is reported here. Glancing angle deposition with a rotating substrate is needed to obtain vertical nanostructures. Enhanced light absorption is obtained in the samples prepared in the ballistic regime with high tilt angles. Under these conditions the diameter distribution of the nanostructures is centered at about 60 nm and the standard deviation is large enough to obtain black-metal behavior in the visible range.
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28323218/the-postural-control-can-be-optimized-by-the-first-movement-initiation-condition-encountered-when-submitted-to-muscle-fatigue
#6
Florian Monjo, Nicolas Forestier
We investigated whether and how the movement initiation condition (IC) encountered during the early movements performed following focal muscle fatigue affects the postural control of discrete ballistic movements. For this purpose, subjects performed shoulder flexions in a standing posture at maximal velocity under two movement IC, i.e., in self-paced conditions and submitted to a Stroop-like task in which participants had to trigger fast shoulder flexions at the presentation of incongruent colors. Shoulder flexion kinematics, surface muscle activity of focal and postural muscles as well as center-of-pressure kinematics were recorded...
March 18, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28317939/direct-measurement-of-the-propagation-of-the-phase-transition-region-of-liquid-crystals
#7
Takahiro Sato, Kenji Katayama
Many types of active matter, such as biological cells, have liquid-crystalline membranes, which are soft and flexible in their interactions with their surroundings and sometimes allow molecular-structural or -orientational changes to extend for long distances, owing to long-range molecular interactions. Despite the technological and fundamental importance of these long-range changes, there is no good physical property with which to express them for the liquid crystal. Here, we show direct measurements of the propagation of structural or orientational changes due to long-range molecular interactions in liquid crystals...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28306282/mesoscopic-free-path-of-nonthermalized-photogenerated-carriers-in-a-ferroelectric-insulator
#8
Zongquan Gu, Dominic Imbrenda, Andrew L Bennett-Jackson, Matthias Falmbigl, Adrian Podpirka, Thomas C Parker, Daniel Shreiber, Mathew P Ivill, Vladimir M Fridkin, Jonathan E Spanier
We show how finite-size scaling of a bulk photovoltaic effect-generated electric field in epitaxial ferroelectric insulating BaTiO_{3}(001) films and a photo-Hall response involving the bulk photovoltaic current reveal a large room-temperature mean free path of photogenerated nonthermalized electrons. Experimental determination of mesoscopic ballistic optically generated carrier transport opens a new paradigm for hot electron-based solar energy conversion, and for facile control of ballistic transport distinct from existing low-dimensional semiconductor interfaces, surfaces, layers, or other structures...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28302586/mantisbot-is-a-robotic-model-of-visually-guided-motion-in-the-praying-mantis
#9
Nicholas S Szczecinski, Andrew P Getsy, Joshua P Martin, Roy E Ritzmann, Roger D Quinn
Insects use highly distributed nervous systems to process exteroception from head sensors, compare that information with state-based goals, and direct posture or locomotion toward those goals. To study how descending commands from brain centers produce coordinated, goal-directed motion in distributed nervous systems, we have constructed a conductance-based neural system for our robot MantisBot, a 29 degree-of-freedom, 13.3:1 scale praying mantis robot. Using the literature on mantis prey tracking and insect locomotion, we designed a hierarchical, distributed neural controller that establishes the goal, coordinates different joints, and executes prey-tracking motion...
March 13, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/28297926/aging-ballistic-l%C3%A3-vy-walks
#10
Marcin Magdziarz, Tomasz Zorawik
Aging can be observed for numerous physical systems. In such systems statistical properties [like probability distribution, mean square displacement (MSD), first-passage time] depend on a time span t_{a} between the initialization and the beginning of observations. In this paper we study aging properties of ballistic Lévy walks and two closely related jump models: wait-first and jump-first. We calculate explicitly their probability distributions and MSDs. It turns out that despite similarities these models react very differently to the delay t_{a}...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28285406/leftward-oculomotor-prismatic-training-induces-a-rightward-bias-in-normal-subjects
#11
I Ronga, P Sarasso, F Raineri, J-R Duhamel, C Becchio, M Neppi-Modona
Wedge prisms shifting the visual field laterally create a mismatch between the straight ahead position signalled by vision and that encoded by extraretinal and head-on-trunk proprioceptive information. Short-term adaptation to left-deviating prisms in normal subjects results in a visuomotor attentional bias towards the right-hand side (aftereffect). Prismatic adaptation (PA) is usually induced through a training consisting in repeated ballistic movements of the dominant arm towards visual targets, while participants are wearing prismatic goggles...
March 11, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28275211/local-observability-analysis-of-star-sensor-installation-errors-in-a-sins-cns-integration-system-for-near-earth-flight-vehicles
#12
Yanqiang Yang, Chunxi Zhang, Jiazhen Lu
Strapdown inertial navigation system/celestial navigation system (SINS/CNS) integrated navigation is a fully autonomous and high precision method, which has been widely used to improve the hitting accuracy and quick reaction capability of near-Earth flight vehicles. The installation errors between SINS and star sensors have been one of the main factors that restrict the actual accuracy of SINS/CNS. In this paper, an integration algorithm based on the star vector observations is derived considering the star sensor installation error...
January 16, 2017: Sensors
https://www.readbyqxmd.com/read/28271364/does-preliminary-optimisation-of-an-anatomically-correct-skull-brain-model-using-simple-simulants-produce-clinically-realistic-ballistic-injury-fracture-patterns
#13
P F Mahoney, D J Carr, R J Delaney, N Hunt, S Harrison, J Breeze, I Gibb
Ballistic head injury remains a significant threat to military personnel. Studying such injuries requires a model that can be used with a military helmet. This paper describes further work on a skull-brain model using skulls made from three different polyurethane plastics and a series of skull 'fills' to simulate brain (3, 5, 7 and 10% gelatine by mass and PermaGel™). The models were subjected to ballistic impact from 7.62 × 39 mm mild steel core bullets. The first part of the work compares the different polyurethanes (mean bullet muzzle velocity of 708 m/s), and the second part compares the different fills (mean bullet muzzle velocity of 680 m/s)...
March 7, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28267647/an-exploratory-study-of-the-potential-of-libs-for-visualizing-gunshot-residue-patterns
#14
María López-López, César Alvarez-Llamas, Jorge Pisonero, Carmen García-Ruiz, Nerea Bordel
The study of gunshot residue (GSR) patterns can assist in the reconstruction of shooting incidences. Currently, there is a real need of methods capable of furnishing simultaneous elemental analysis with higher specificity for the GSR pattern visualization. Laser-Induced Breakdown Spectroscopy (LIBS) provides a multi-elemental analysis of the sample, requiring very small amounts of material and no sample preparation. Due to these advantages, this study aims at exploring the potential of LIBS imaging for the visualization of GSR patterns...
February 21, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28265079/higher-than-ballistic-conduction-of-viscous-electron-flows
#15
Haoyu Guo, Ekin Ilseven, Gregory Falkovich, Leonid S Levitov
Strongly interacting electrons can move in a neatly coordinated way, reminiscent of the movement of viscous fluids. Here, we show that in viscous flows, interactions facilitate transport, allowing conductance to exceed the fundamental Landauer's ballistic limit [Formula: see text] The effect is particularly striking for the flow through a viscous point contact, a constriction exhibiting the quantum mechanical ballistic transport at [Formula: see text] but governed by electron hydrodynamics at elevated temperatures...
March 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28263235/unusual-case-of-suicide-with-a-modified-trap-gun
#16
Amal Vadysinghe, Prasanna Dassanayake, Medhani Wickramasinghe
INTRODUCTION: Trap gun is an illegal, locally manufactured gun with a basic trip system used to hunt wild animals. CASE REPORT: The body of a 28-year-old man was found in the jungle in supine position with both legs apart. A trap gun was between the legs pointing toward the cranial side of the body. It had 2 free wires that were not connected together. There was no evidence of foul play.The body had a single-entry wound (2.5-cm diameter) in the anterior chest, with blackening, burning, and tattooing...
March 3, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28254598/management-of-war-related-ballistic-craniocerebral-injuries-in-a-french-role-3-hospital-during-the-afghan-campaign
#17
Arnaud Dagain, Olivier Aoun, Julien Bordes, Cédric Roqueplo, Christophe Joubert, Pierre Esnault, Aurore Sellier, Jean-Marc Delmas, Nicolas Desse, Mathilde Fouet, Philippe Pernot, Renaud Dulou
INTRODUCTION: France deployed to Afghanistan from 2001 to 2014 within the International Security and Assistance Force. A French role 3 hospital was built in 2009 in the vicinity of Kabul International Airport (KaIA). The objectives of this study were to describe the epidemiology, management and outcome of war-related craniocerebral injuries during the Afghan campaign in a French role 3 hospital. METHODS: From March 1, 2010 to September 30, 2012, we conducted a retrospective descriptive study in Kabul, Afghanistan...
February 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28253059/are-injuries-more-common-with-crossfit-training-than-other-forms-of-exercise
#18
Chelsey Klimek, Christopher Ashbeck, Alexander J Brook, Chris Durall
Clinical Scenario: CrossFit is a form of exercise that incorporates rapid and successive high-intensity, ballistic movements. As CrossFit becomes an increasingly popular fitness option, it is important to determine how rates of injury compare to more traditional forms of exercise. This review was conducted to ascertain the incidence of injury with CrossFit relative to other forms of exercise. Focused Clinical Question: Are injuries more common with CrossFit training than other forms of exercise? Summary of Key Findings The literature was searched for studies that compared injury rates among individuals who participated in CrossFit fitness programs to participants in other exercise programs The search initially yielded >100 results which was narrowed down to three level 2b retrospective cohort studies that was deemed to have met inclusion/exclusion criteria In all three reviewed studies, the reported incidences of injuries associated with CrossFit training programs were comparable or lower than rates of injury in Olympic weightlifting, distance running, track and field, rugby, or gymnastics...
March 2, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28249550/amelioration-of-penetrating-ballistic-like-brain-injury-induced-cognitive-deficits-after-neuronal-differentiation-of-transplanted-human-neural-stem-cells
#19
Markus S Spurlock, Aminul Islam Ahmed, Karla N Rivera, Shoji Yokobori, Stephanie W Lee, Pingdewinde N Sam, Deborah A Shear, Michael P Hefferan, Thomas G Hazel, Karl K Johe, Shyam Gajavelli, Frank C Tortella, Ross Bullock
Penetrating traumatic brain injury (PTBI) is one of the major cause of death and disability worldwide. Previous studies in penetrating ballistic-like brain injury (PBBI), a PTBI rat model revealed widespread peri-lesional neurodegeneration, similar to that seen in humans following gunshot wound to head, which is unmitigated by any available therapies to date. Therefore, we evaluated human neural stem cell (hNSC) engraftment to putatively exploit the potential of cell therapy that has been seen in other central nervous system injury models...
March 1, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28249440/microscopic-origin-of-the-fragile-to-strong-crossover-in-supercooled-water-the-role-of-activated-processes
#20
M De Marzio, G Camisasca, M Rovere, P Gallo
We perform an accurate analysis of the density self-correlation functions of TIP4P/2005 supercooled water on approaching the region of the liquid-liquid critical point. In a previous work on this model, we provided evidence of a fragile to strong crossover of the dynamical behavior in the deep supercooled region. The structural relaxation follows the Mode Coupling theory in the fragile region and then deviates from Mode Coupling regime to a strong Arrhenius behavior. This crossover is particularly important in water because it is connected to the thermodynamics of the supercooled region...
February 28, 2017: Journal of Chemical Physics
keyword
keyword
93758
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"