Results 81 to 90 of about 108,163 (276)
Impulse, Momentum, and Collisions [PDF]
, 2019 When two billiard balls collide, in which direction would they travel after the collision? If a meteorite hits the earth, why does the earth remain in its orbit? When two cars collide with each other, why is one of the cars more damaged than the other? We will find that to answer such questions, new concepts must be introduced.
openaire +2 more sources
Experimental evidence of shock mitigation in a Hertzian tapered chain
, 2006 We present an experimental study of the mechanical impulse propagation through a horizontal alignment of elastic spheres of progressively decreasing diameter $\phi_n$, namely a tapered chain.
Francisco Melo +9 more
core +1 more source
Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings
Advanced Science, EarlyView.Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini +5 more
wiley +1 more source
Differences in Deceleration Mechanics from Mass- vs Velocity-Dominant Impact Momentum
International Journal of Strength and ConditioningThe purpose of this study was to determine how landing mechanics differ when impact momentum is manipulated by drop height (HEIGHT) compared to external loading (LOAD).
Leland Barker +6 more
doaj +1 more source
High-Performance and High-Capacity Ultraviolet Communication With Orbital Angular Momentum
IEEE Access, 2019 In this paper, a high-performance and high-capacity ultraviolet (UV) communication system is presented using orbital angular momentum (OAM) of the Laguerre-Gaussian beam.
Sudhanshu Arya, Yeon Ho Chung
doaj +1 more source
, 2002 Inclusive electron scattering from nuclei at low momentum transfer (corresponding to x>1) and moderate Q^2 is dominated by quasifree scattering from nucleons.
Arrington, J.
core +3 more sources
Defect‐Rich 2D Layered Double Hydroxides Enhance Sonodynamic Antibacterial Therapy
Advanced Science, EarlyView.This study develops defect‐rich ultrathin ZnCuW‐LDH nanosheets (DR‐ZnCuW‐LDH) via acid etching. DR‐ZnCuW‐LDH exhibits fourfold enhanced US‐triggered ROS production due to oxygen defects and electronic modulation, demonstrating potent antibacterial efficacy in vitro/vivo.
Qian Liu +6 more
wiley +1 more source
, 2005 It is well-known that energy-momentum is the source of gravitational field. For a long time, it is generally believed that only stars with huge masses can generate strong gravitational field.
+28 more
core +1 more source
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT Amid rising food and fertilizer prices, understanding farmers' policy preferences is critical for effective crisis response. We use best‐worst scaling experiment to assess Kenyan mobile‐owning crop farmers' preferences for government support under high and normal price scenarios.
Mywish K. Maredia +4 more
wiley +1 more source
Analysis of the impulse Poiseuille flow of generalized second grade fluid
工程科学学报, 2016 The impulse Poiseuille flow of generalized second grade fluid was discussed in this paper. Combining the Riemann-Liouville fractional constitutive equation of second grade fluid with the fractional momentum equation of incompressible fluid,a new ...
ZHANG Yan, ZHANG Min, HUANG Zhen
doaj +1 more source