Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 18 of 18
Full-Text Articles in Physics
Stratified Turbulence In The Nearshore Coastal Ocean: Dynamics And Evolution In The Presence Of Internal Bores, Ryan K. Walter, Michael E. Squibb, C. Brock Woodson, Jeffrey R. Koseff, Stephen G. Monismith
Stratified Turbulence In The Nearshore Coastal Ocean: Dynamics And Evolution In The Presence Of Internal Bores, Ryan K. Walter, Michael E. Squibb, C. Brock Woodson, Jeffrey R. Koseff, Stephen G. Monismith
Physics
High-frequency measurements of stratified turbulence throughout the water column were collected over a 2 week period in the nearshore environment of southern Monterey Bay, CA, using a cabled observatory system and an underwater turbulence flux tower. The tower contained a vertical array of acoustic Doppler velocimeters and fast-response conductivity-temperature sensors, providing a nearly continuous data set of turbulent velocity and density fluctuations and a unique look into the stratified turbulence field. The evolution of various turbulence quantities and direct measurements of the vertical turbulent diffusivity is examined in the presence of nearshore internal bores, both in the near-bed region and …
Exploring The Neutrinoless Double Beta Decay In The Inverted Neutrino Hierarchy With Bolometric Detectors, D.R. Artusa, F.T. Avignone Iii, O. Azzolini, M. Balata, T.I. Banks, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, C. Brofferio, C. Bucci, X.Z. Cai, A. Camacho, L. Canonica, X.G. Cao, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, D. Chiesa, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R.J. Creswick, I. Dafinei, A. Dally, V. Datskov, A. De Biasi, M.M. Deninno, S. Di Domizio, M.L. Di Vacri, L. Ejzak, D.Q. Fang, H.A. Farach, M. Faverzani, G. Fernandes, E. Ferri, F. Ferroni, E. Fiorini, M.A. Franceschi, S.J. Freedman, B.K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. Goett, P. Gorla, C. Gotti, T.D. Gutierrez, E.E. Haller, K. Han, K.M. Heeger, R. Hennings-Yeomans, H.Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, Yu. G. Kolomensky, Y.L. Li, C. Ligi, X. Liu, Y.G. Ma, C. Maiano, M. Maino, M. Martinez, R.H. Maruyama, Y. Mei, N. Moggi, S. Morganti, T. Napolitano, S. Nisi, C. Nones, E.B. Norman, A. Nucciotti, T. O'Donnell, F. Orio, D. Orlandi, J.L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, V. Pettinacci, G. Piperno, C. Pira, S. Pirro, E. Previtali, V. Rampazzo, C. Rosenfeld, C. Rusconi, E. Sala, S. Sangiorgio, N.D. Scielzo, M. Sisti, A.R. Smith, L. Taffarello, M. Tenconi, F. Terranova, W.D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B.S. Wang, H.W. Wang, L. Wielgus, J. Wilson, L.A. Winslow, T. Wise, A. Woodcraft, L. Zanotti, C. Zarra, B.X. Zhu, S. Zucchelli
Exploring The Neutrinoless Double Beta Decay In The Inverted Neutrino Hierarchy With Bolometric Detectors, D.R. Artusa, F.T. Avignone Iii, O. Azzolini, M. Balata, T.I. Banks, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, C. Brofferio, C. Bucci, X.Z. Cai, A. Camacho, L. Canonica, X.G. Cao, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, D. Chiesa, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R.J. Creswick, I. Dafinei, A. Dally, V. Datskov, A. De Biasi, M.M. Deninno, S. Di Domizio, M.L. Di Vacri, L. Ejzak, D.Q. Fang, H.A. Farach, M. Faverzani, G. Fernandes, E. Ferri, F. Ferroni, E. Fiorini, M.A. Franceschi, S.J. Freedman, B.K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. Goett, P. Gorla, C. Gotti, T.D. Gutierrez, E.E. Haller, K. Han, K.M. Heeger, R. Hennings-Yeomans, H.Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, Yu. G. Kolomensky, Y.L. Li, C. Ligi, X. Liu, Y.G. Ma, C. Maiano, M. Maino, M. Martinez, R.H. Maruyama, Y. Mei, N. Moggi, S. Morganti, T. Napolitano, S. Nisi, C. Nones, E.B. Norman, A. Nucciotti, T. O'Donnell, F. Orio, D. Orlandi, J.L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, V. Pettinacci, G. Piperno, C. Pira, S. Pirro, E. Previtali, V. Rampazzo, C. Rosenfeld, C. Rusconi, E. Sala, S. Sangiorgio, N.D. Scielzo, M. Sisti, A.R. Smith, L. Taffarello, M. Tenconi, F. Terranova, W.D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B.S. Wang, H.W. Wang, L. Wielgus, J. Wilson, L.A. Winslow, T. Wise, A. Woodcraft, L. Zanotti, C. Zarra, B.X. Zhu, S. Zucchelli
Physics
Neutrinoless double beta decay (0νββ" style="position: relative;" tabindex="0" id="MathJax-Element-1-Frame">0νββ) is one of the most sensitive probes for physics beyond the Standard Model, providing unique information on the nature of neutrinos. In this paper we review the status and outlook for bolometric 0νββ" style="position: relative;" tabindex="0" id="MathJax-Element-2-Frame">0νββ decay searches. We summarize recent advances in background suppression demonstrated using bolometers with simultaneous readout of heat and light signals. We simulate several configurations of a future CUORE-like bolometer array which would utilize these improvements and present the sensitivity reach of a hypothetical next-generation bolometric 0νββ" style="position: relative;" tabindex="0" id="MathJax-Element-3-Frame">0νββ experiment. …
Fluid-Induced Propulsion Of Rigid Particles In Wormlike Micellar Solutions, David A. Gagnon, Nathan C. Keim, Xiaoning Shen, Paulo E. Arratia
Fluid-Induced Propulsion Of Rigid Particles In Wormlike Micellar Solutions, David A. Gagnon, Nathan C. Keim, Xiaoning Shen, Paulo E. Arratia
Physics
In the absence of inertia, a reciprocal swimmer achieves no net motion in a viscous Newtonian fluid. Here, using tracking methods and birefringence imaging, we investigate the ability of a reciprocally actuated particle to translate through a complex fluid that possesses a network. A geometrically polar particle, a rod with a bead on one end, is reciprocally rotated using magnetic fields. The particle is immersed in a wormlike micellar (WLM) solution that is known to be susceptible to the formation of shear bands and other localized structures due to shear-induced remodeling of its microstructure. Results show that the nonlinearities present …
Undulatory Swimming In Shear-Thinning Fluids: Experiments With C. Elegans, David A. Gagnon, Nathan C. Keim, Paulo E. Arratia
Undulatory Swimming In Shear-Thinning Fluids: Experiments With C. Elegans, David A. Gagnon, Nathan C. Keim, Paulo E. Arratia
Physics
The swimming behaviour of microorganisms can be strongly influenced by the rheology of their fluid environment. In this manuscript, we experimentally investigate the effects of shear-thinning viscosity on the swimming behaviour of an undulatory swimmer, the nematode Caenorhabditis elegans. Tracking methods are used to measure the swimmer’s kinematic data (including propulsion speed) and velocity fields. We find that shear-thinning viscosity modifies the velocity fields produced by the swimming nematode but does not modify the nematode’s speed and beating kinematics. Velocimetry data show significant enhancement in local vorticity and circulation, and an increase in fluid velocity near the nematode’s tail, compared …
First Cuore-0 Performance Results And Status Of Cuore Experiment, L. Canonica, D.R. Artusa, F.T. Avignone Iii, N. Chott, R.J. Crewick, H.A. Farach, S. Newman, C. Rosenfeld, J. Wilson, O. Azzolini, A. Camacho, A. De Biasi, G. Keppel, V. Palmieri, C. Pira, V. Rampazzo, T.I. Banks, S.J. Freedman, L. Kogler, Yu. G. Kolomensky, T. O'Donnell, J.L. Ouellet, T. Bloxham, B.K. Fujikawa, K. Han, Y. Mei, G. Bari, M.M. Deninno, N. Moggi, F. Rimondi, S. Zucchelli, J. Beeman, E.E. Haller, F. Bellini, L. Cardani, C. Cosmelli, R. Faccini, F. Ferroni, G. Piperno, I. Dafinei, S. Morganti, F. Orio, C. Tomei, M. Vignati, A. Bersani, S. Didomizio, G. Fernandes, M. Pallavicini, M. Biassoni, C. Brofferio, S. Capelli, M. Carrettoni, D. Chiesa, M. Clemenza, M. Faverzani, E. Ferri, E. Fiorini, A. Giachero, L. Gironi, C. Gotti, C. Miaino, M. Maino, A. Nucciotti, M. Pavan, E. Sala, M. Sisti, L. Zanotti, L. Carbone, O. Cremonesi, V. Datskov, G. Pessina, S. Pirro, E. Previtali, C. Rusconi, F. Terranova, X.Z. Cai, X. Cao, D.Q. Fang, Y.L. Li, Y.G. Ma, W.D. Tian, H.W. Wang, A. Dally, L. Ejzak, K.M. Heeger, D. Lenz, R.H. Maruyama, L. Wielgus, T. Wise, M.A. Franceschi, C. Ligi, T. Napolitano, A. Guiliani, M. Tenconi, T. D. Gutierrez, E.E. Haller, H.Z. Huang, X. Liu, S. Trentalange, B.X. Zhu, R. Kadel, Yu.G. Kolomensky, K. Kazkaz, E.B. Norman, M. Pedretti, S. Sangiorgio, N.D. Scielzo, B.S. Wang, M. Martinez, C. Nones, F. Rimondi, S. Zucchelli, A.R. Smith, L. Taffarello, G. Ventura, A. Woodcraft
First Cuore-0 Performance Results And Status Of Cuore Experiment, L. Canonica, D.R. Artusa, F.T. Avignone Iii, N. Chott, R.J. Crewick, H.A. Farach, S. Newman, C. Rosenfeld, J. Wilson, O. Azzolini, A. Camacho, A. De Biasi, G. Keppel, V. Palmieri, C. Pira, V. Rampazzo, T.I. Banks, S.J. Freedman, L. Kogler, Yu. G. Kolomensky, T. O'Donnell, J.L. Ouellet, T. Bloxham, B.K. Fujikawa, K. Han, Y. Mei, G. Bari, M.M. Deninno, N. Moggi, F. Rimondi, S. Zucchelli, J. Beeman, E.E. Haller, F. Bellini, L. Cardani, C. Cosmelli, R. Faccini, F. Ferroni, G. Piperno, I. Dafinei, S. Morganti, F. Orio, C. Tomei, M. Vignati, A. Bersani, S. Didomizio, G. Fernandes, M. Pallavicini, M. Biassoni, C. Brofferio, S. Capelli, M. Carrettoni, D. Chiesa, M. Clemenza, M. Faverzani, E. Ferri, E. Fiorini, A. Giachero, L. Gironi, C. Gotti, C. Miaino, M. Maino, A. Nucciotti, M. Pavan, E. Sala, M. Sisti, L. Zanotti, L. Carbone, O. Cremonesi, V. Datskov, G. Pessina, S. Pirro, E. Previtali, C. Rusconi, F. Terranova, X.Z. Cai, X. Cao, D.Q. Fang, Y.L. Li, Y.G. Ma, W.D. Tian, H.W. Wang, A. Dally, L. Ejzak, K.M. Heeger, D. Lenz, R.H. Maruyama, L. Wielgus, T. Wise, M.A. Franceschi, C. Ligi, T. Napolitano, A. Guiliani, M. Tenconi, T. D. Gutierrez, E.E. Haller, H.Z. Huang, X. Liu, S. Trentalange, B.X. Zhu, R. Kadel, Yu.G. Kolomensky, K. Kazkaz, E.B. Norman, M. Pedretti, S. Sangiorgio, N.D. Scielzo, B.S. Wang, M. Martinez, C. Nones, F. Rimondi, S. Zucchelli, A.R. Smith, L. Taffarello, G. Ventura, A. Woodcraft
Physics
The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay in 130" style="position: relative;" tabindex="0" id="MathJax-Element-1-Frame">130Te. Observation of the process would unambiguously establish that neutrinos are Majorana particles as well as provide information about the absolute neutrino mass scale and mass hierarchy.The CUORE setup will consist of an array of 988 tellurium dioxide crystals (containing 206 kg of 130" style="position: relative;" tabindex="0" id="MathJax-Element-2-Frame">130Te in total), operated as bolometers at a temperature of ∼" style="position: relative;" tabindex="0" id="MathJax-Element-3-Frame">∼10 mK. The experiment is now under construction at the Gran Sasso National Laboratory in …
Spatially Resolved Spectra Of The “Teacup” Active Galactic Nucleus: Tracing The History Of A Dying Quasar, J.P. Gagne, D.M. Crenshaw, S.B. Kraemer, H.R. Schmitt, W.C. Keel, S. Rafter, T.C. Fischer, K. Schawinski, V.N Bennert
Spatially Resolved Spectra Of The “Teacup” Active Galactic Nucleus: Tracing The History Of A Dying Quasar, J.P. Gagne, D.M. Crenshaw, S.B. Kraemer, H.R. Schmitt, W.C. Keel, S. Rafter, T.C. Fischer, K. Schawinski, V.N Bennert
Physics
The Sloan Digital Sky Survey (SDSS) Galaxy Zoo project has revealed a number of spectacular galaxies possessing extended emission-line regions (EELRs), the most famous being Hanny’s Voorwerp galaxy. We present another EELR object discovered in the SDSS endeavor: the Teacup active galactic nucleus (AGN). Nicknamed for its EELR, which has a “handle”-like structure protruding 15 kpc into the northeast quadrant of the galaxy. We analyze the physical conditions of this galaxy with long-slit, ground-based spectroscopy from the Lowell, Lick, and KPNO observatories. With the Lowell 1.8 m Perkin’s telescope we took multiple observations at different offset positions, allowing us to …
Multiple Transient Memories In Experiments On Sheared Non-Brownian Suspensions, Joseph D. Paulsen, Nathan Keim, Sidney R. Nagel
Multiple Transient Memories In Experiments On Sheared Non-Brownian Suspensions, Joseph D. Paulsen, Nathan Keim, Sidney R. Nagel
Physics
A system with multiple transient memories can remember a set of inputs but subsequently forgets almost all of them, even as they are continually applied. If noise is added, the system can store all memories indefinitely. The phenomenon has recently been predicted for cyclically sheared non-Brownian suspensions. Here we present experiments on such suspensions, finding behavior consistent with multiple transient memories and showing how memories can be stabilized by noise.
Transcritical Generation Of Nonlinear Internal Waves In The Presence Of Background Shear Flow, Marek Stastna, Ryan Walter
Transcritical Generation Of Nonlinear Internal Waves In The Presence Of Background Shear Flow, Marek Stastna, Ryan Walter
Physics
While the occurrence of large amplitude internal waves in the Earth's natural bodies of water is widely documented, the generation of these waves remains an active area of exploration. We discuss numerical simulations of transcritical flows of a density stratified fluid with a dual focus on the role of a background shear current and transitions of the background current from super to subcritical. We demonstrate that the presence of a background shear can lead to the formation of large quasi-trapped regions of high vorticity over the downstream slope of the topography, but that this vorticity leads to only moderate perturbations …
Initial Performance Of The Cuore-0 Experiment, D.R. Artusa, F.T. Avignone Iii, O. Azzolini, M. Balata, T.I. Banks, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, C. Brofferio, C. Bucci, X.Z. Cai, L. Canonica, X.G. Cao, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, D. Chiesa, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R.J. Creswick, I. Dafinei, A. Dally, V. Datskov, M.M. Deninno, S. Di Domizio, M.L. Di Vacri, L. Ejzak, D.Q. Fang, H.A. Farach, M. Facerzani, G. Fernandes, E. Ferri, F. Ferroni, E. Fiorini, S.J. Freedman, B.K. Fujikawa, A. Giachero, L. Gironi, A. Guiliani, J. Goett, P. Gorla, C. Gotti, T. D. Gutierrez, E.E. Haller, K. Han, K.M. Heeger, R. Hennings-Yeomans, H.Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, Yu.G. Kolomensky, Y.L. Li, K.E. Lim, X. Liu, Y.G. Ma, C. Maiano, M. Maino, M. Martinez, R.H. Maruyama, Y. Mei, N. Moggi, S. Morganti, S. Nisi, C. Nones, E.B. Norman, A. Nucciotti, T. O'Donnell, F. Orio, D. Orlandi, J.L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, V. Pettinacci, G. Piperno, S. Pirro, E. Previtali, C. Rosenfeld, E. Sala, S. Sangiorgio, N.D. Scielzo, M. Sisti, A.R. Smith, L. Taffarello, M. Tenconi, F. Terranova, W.D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B.S. Wang, H.W. Wang, L. Wielgus, J. Wilson, L.A. Winslow, T. Wise, L. Zanotti, C. Zarra, B.X. Zhu, S. Zucchelli
Initial Performance Of The Cuore-0 Experiment, D.R. Artusa, F.T. Avignone Iii, O. Azzolini, M. Balata, T.I. Banks, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, C. Brofferio, C. Bucci, X.Z. Cai, L. Canonica, X.G. Cao, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, D. Chiesa, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R.J. Creswick, I. Dafinei, A. Dally, V. Datskov, M.M. Deninno, S. Di Domizio, M.L. Di Vacri, L. Ejzak, D.Q. Fang, H.A. Farach, M. Facerzani, G. Fernandes, E. Ferri, F. Ferroni, E. Fiorini, S.J. Freedman, B.K. Fujikawa, A. Giachero, L. Gironi, A. Guiliani, J. Goett, P. Gorla, C. Gotti, T. D. Gutierrez, E.E. Haller, K. Han, K.M. Heeger, R. Hennings-Yeomans, H.Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, Yu.G. Kolomensky, Y.L. Li, K.E. Lim, X. Liu, Y.G. Ma, C. Maiano, M. Maino, M. Martinez, R.H. Maruyama, Y. Mei, N. Moggi, S. Morganti, S. Nisi, C. Nones, E.B. Norman, A. Nucciotti, T. O'Donnell, F. Orio, D. Orlandi, J.L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, V. Pettinacci, G. Piperno, S. Pirro, E. Previtali, C. Rosenfeld, E. Sala, S. Sangiorgio, N.D. Scielzo, M. Sisti, A.R. Smith, L. Taffarello, M. Tenconi, F. Terranova, W.D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B.S. Wang, H.W. Wang, L. Wielgus, J. Wilson, L.A. Winslow, T. Wise, L. Zanotti, C. Zarra, B.X. Zhu, S. Zucchelli
Physics
CUORE-0 is a cryogenic detector that uses an array of tellurium dioxide bolometers to search for neutrinoless double-beta decay of 130Te" style="position: relative;" tabindex="0" id="MathJax-Element-1-Frame">130Te. We present the first data analysis with 7.1kg⋅y" style="position: relative;" tabindex="0" id="MathJax-Element-2-Frame">7.1kg⋅y of total TeO2" style="position: relative;" tabindex="0" id="MathJax-Element-3-Frame">TeO2 exposure focusing on background measurements and energy resolution. The background rates in the neutrinoless double-beta decay region of interest (2.47 to 2.57MeV" style="position: relative;" tabindex="0" id="MathJax-Element-4-Frame">2.57MeV) and in the α" style="position: relative;" tabindex="0" id="MathJax-Element-5-Frame">α background-dominated region (2.70 to 3.90MeV" style="position: relative;" tabindex="0" id="MathJax-Element-6-Frame">3.90MeV) have been measured to be 0.071±0.011" style="position: …
Calculating And Visualizing The Density Of States For Simple Quantum Mechanical Systems, Declan Mulhall, Matthew J. Moelter
Calculating And Visualizing The Density Of States For Simple Quantum Mechanical Systems, Declan Mulhall, Matthew J. Moelter
Physics
We present a graphical approach to understanding the degeneracy, density of states, and cumulative state number for some simple quantum systems. By taking advantage of basic computing operations, we define a straightforward procedure for determining the relationship between discrete quantum energy levels and the corresponding density of states and cumulative level number. The density of states for a particle in a rigid box of various shapes and dimensions is examined and graphed. It is seen that the dimension of the box, rather than its shape, is the most important feature. In addition, we look at the density of states for …
Connecting Wind-Driven Upwelling And Offshore Stratification To Nearshore Internal Bores And Oxygen Variability, Ryan K. Walter, C. Brock Woodson, Paul R. Leary, Stephen G. Monismith
Connecting Wind-Driven Upwelling And Offshore Stratification To Nearshore Internal Bores And Oxygen Variability, Ryan K. Walter, C. Brock Woodson, Paul R. Leary, Stephen G. Monismith
Physics
This study utilizes field observations in southern Monterey Bay, CA, to examine how regional-scale upwelling and changing offshore (shelf) conditions influence nearshore internal bores. We show that the low-frequency wind forcing (e.g., upwelling/relaxation time scales) modifies the offshore stratification and thermocline depth. This in turn alters the strength and structure of observed internal bores in the near-shore. An internal bore strength index is defined using the high-pass filtered potential energy density anomaly in the nearshore. During weak upwelling favorable conditions and wind relaxations, the offshore thermocline deepens. In this case, both the amplitude of the offshore internal tide and the …
Nonlinear Internal Waves, Internal Bores, And Turbulent Mixing In The Nearshore Coastal Environment, Ryan K. Walter
Nonlinear Internal Waves, Internal Bores, And Turbulent Mixing In The Nearshore Coastal Environment, Ryan K. Walter
Physics
The nearshore coastal environment is generally taken to be one of the most productive and ecologically important parts of the ocean. The nearshore is also a complex environment from a physical standpoint, due in large part to the widespread and often irregular occurrence of nonlinear internal waves (NLIWs) that frequently appear more bore-like than wave-like. Indeed, this region of the ocean can be thought of as the “swash zone” for larger-scale internal wave fields on the continental shelf. These nearshore NLIWs and bores have considerable implications for the cross-shelf exchange and transport of nutrients, sediments, contaminants, larvae, and other scalars; …
Preface: Nuclear Weapon Issues In The 21st Century, Pierce Corden, David Hafemeister, Peter Zimmerman
Preface: Nuclear Weapon Issues In The 21st Century, Pierce Corden, David Hafemeister, Peter Zimmerman
Physics
No abstract provided.
Primer On Nuclear Exchange Models, David W. Hafemeister
Primer On Nuclear Exchange Models, David W. Hafemeister
Physics
Basic physics is applied to nuclear force exchange models between two nations. Ultimately, this scenario approach can be used to try and answer the age old question of "how much is enough?" This work is based on Chapter 2 of Physics of Societal Issues: Calculations on National Security, Environment and Energy (Springer, 2007 and 2014).
Appendix A: Nuclear Arms Chronology, David Hafemeister
Nuclear Proliferation And Testing: A Tale Of Two Treaties, Pierce S. Corden, David Hafemeister
Nuclear Proliferation And Testing: A Tale Of Two Treaties, Pierce S. Corden, David Hafemeister
Physics
Despite progress in reducing stockpiles after the end of the Cold War, the disturbing actions of some nations could spread nuclear weapon capabilities and enlarge existing arsenals.
Mechanical And Microscopic Properties Of The Reversible Plastic Regime In A 2d Jammed Material, Nathan C. Keim, Paulo E. Arratia
Mechanical And Microscopic Properties Of The Reversible Plastic Regime In A 2d Jammed Material, Nathan C. Keim, Paulo E. Arratia
Physics
At the microscopic level, plastic flow of a jammed, disordered material consists of a series of particle rearrangements that cannot be reversed by subsequent deformation. An infinitesimal deformation of the same material has no rearrangements. Yet between these limits, there may be a self-organized plastic regime with rearrangements, but with no net change upon reversing a deformation. We measure the oscillatory response of a jammed interfacial material, and directly observe rearrangements that couple to bulk stress and dissipate energy, but do not always give rise to global irreversibility.
An Introduction To The Inverse Quantum Bound-State Problem In One Dimension, Thomas D. Gutierrez
An Introduction To The Inverse Quantum Bound-State Problem In One Dimension, Thomas D. Gutierrez
Physics
A technique to reconstruct one-dimensional, reflectionless potentials and the associated quantum wave functions starting from a finite number of known energy spectra is discussed. The method is demonstrated using spectra that scale like the lowest energy states of standard problems encountered in the undergraduate curriculum, such as the infinite square well and the simple harmonic oscillator.