Search Results - "Kovtun, K"

The complex life of hydrodynamic modes by Grozdanov, Sašo, Kovtun, Pavel K., Starinets, Andrei O., Tadić, Petar

“…A bstract We study analytic properties of the dispersion relations in classical hydrody- namics by treating them as Puiseux series in complex momentum. The…”
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Viscosity in strongly interacting quantum field theories from black hole physics by KOVTUN, P. K, SON, D. T, STARINETS, A. O

“…The ratio of shear viscosity to volume density of entropy can be used to characterize how close a given fluid is to being perfect. Using string theory methods,…”
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Impact of deuterium plasma ions on mirror samples fabricated from Zr48Cu36Al8Ag8 and Zr57Cu15.4Al10Ni12.6Nb5 amorphous alloys by Voitsenya, V.S., Malykhin, D.G., Konovalov, V.G., Louzguine-Luzgin, D.V., Bobkov, V.V., Ryzhkov, I.V., Shapoval, A.N., Shtan’, A.F., Solodovchenko, S.I., Kovtun, K.V., Vasil'ev, A.A.

“…•D plasma ions impact on BMG leads to D absorption and modification of some properties.•At D ion energy< 120 eV, the amount of D absorbed increases linearly…”
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Influence of Oxidation on the Properties of Near-Surface Layers of Metals from Group IV (Ti, Zr, and Hf) by Trush, V. S., Stoev, P. І., Luk’yanenko, A. G., Voyevodin, V. M., Pohrelyuk, І. М., Fedirko, V. М., Kovtun, K. V., Kravchyshyn, Т. М.

“…We present characteristics of near-surface layers of d-elements from group IV (titanium, zirconium, and hafnium) after diffusion saturation from a controlled…”
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Theory of the Nernst effect near quantum phase transitions in condensed matter and in dyonic black holes by Hartnoll, Sean A., Kovtun, Pavel K., Müller, Markus, Sachdev, Subir

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Race and the Risk of Death Following High-Dose Radiation Therapy in Men Treated With or Without Androgen Suppression Therapy for Favorable-Risk Prostate Cancer by Kovtun, K, Chen, M.H, Braccioforte, M.H, Moran, B.J, D'Amico, A.V

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RESEARCH OF FOREIGN BODIES SOFT TISSUE GUNSHOT ORIGIN by Negoduyko, V, Mikhaylusov, R, Velikodnyi, A, Kovtun, K

“…The purpose of the study was to analyze the elemental, quantitative, and qualitative composition of foreign bodies of a firearm origin removed from the soft…”
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Sleep and meal-time misalignment alters functional connectivity: a pilot resting-state study by Yoncheva, Y N, Castellanos, F X, Pizinger, T, Kovtun, K, St-Onge, M-P

“…Delayed sleep and meal times promote metabolic dysregulation and obesity. Altered coordination of sleeping and eating times may impact food-reward valuation…”
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First search for α decays of naturally occurring Hf nuclides with emission of γ quanta by Danevich, F. A., Hult, M., Kasperovych, D. V., Kovtun, G. P., Kovtun, K. V., Lutter, G., Marissens, G., Polischuk, O. G., Stetsenko, S. P., Tretyak, V. I.

“…The first ever search for α decays to the first excited state in Yb was performed for six isotopes of hafnium (174, 176, 177, 178, 179, 180) using a high…”
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Convergence of the Gradient Expansion in Hydrodynamics by Grozdanov, Sašo, Kovtun, Pavel K, Starinets, Andrei O, Tadić, Petar

“…Hydrodynamic excitations corresponding to sound and shear modes in fluids are characterized by gapless dispersion relations. In the hydrodynamic gradient…”
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Neoadjuvant Therapy for Borderline Resectable and Locally Advanced Pancreatic Cancer by Kovtun, K, Moser, J.A, Callery, M, Kent, T, Tseng, J, Miksad, R, Bullock, A, Schlechter, B, Mahadevan, A

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Location of Local Recurrence After MRI-Guided Partial Prostate Brachytherapy Targeting Only the Peripheral Zone: Implications for Focal Therapy by Kovtun, K, Penzkofer, T, Agrawal, N, Kapur, T, Andriy, F, Cormack, R, D'Amico, A.V, Tempany, C.M, Nguyen, P.L

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Optimization of the Medium of Thermal Treatment of GFE-1 Hafnium Alloy by Trush, V. S., Fedirko, V. M., Luk’yanenko, O. H., Kovtun, K. V.

“…We optimize the conditions of thermochemical treatment of the plates (~ 1 mm) made of GFE-1 hafnium alloy after plastic deformation from the viewpoint of the…”
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Compton (prompt-response) neutron detectors: Comparison of emitter materials through the nuclear transmutation model by Ulybkin, A., Rybka, A., Kovtun, K., Kutny, V., Voyevodin, V., Pudov, A., Azhazha, R., Bogdan, E.

“…Reactors’ safety and efficiency are the determining factors in the modern nuclear power industry, and their required level can be achieved only by using the…”
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Quality of Life in Patients Treated With Surgery Alone Versus Surgery and Radiation for Nonfunctioning Pituitary Adenomas by Dyer, M.A, Yeap, B.Y, Kovtun, K, Kuhlthau, K.A, Miller, K.K, Oh, K.S, Klibanski, A, Swearingen, B, Loeffler, J.S, Shih, H.A

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Compton-emissive hafnium detector of neutrons for in-core monitoring by Ulybkin, A.L., Rybka, A.V., Kovtun, K.V., Kutny, V.E., Voyevodin, V.N., Pudov, A.O.

“…The work is devoted to substantiating the use of metallic hafnium as the emitter of the Compton (prompt-response) in-core detector of thermal and resonant…”
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High Frequency Vibrations Impact on Mechanical Properties of Nanocrystalline Titanium by Bakai, S. А., Smolianets, R. V., Kovtun, K. V., Moskalenko, V. А., Bakai, A. S.

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Effect of phase on the formation of excited particles under ion bombardment of Fe–Co alloys by Afanas'eva, I.A., Bobkov, V.V., Gokov, S.P., Gritsyna, V.V., Kovtun, K.V., Trembach, O.V., Shevchenko, D.I.

“…Investigations of the main parameters of ion–photon emission during Ar + ion bombardment of Fe and Co metals and Fe–Co alloys have been made. It was shown that…”
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Quasinormal modes and holography by Kovtun, Pavel K., Starinets, Andrei O.

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Hybrid Threats: Essence, Characteristics, Preconditions for Escalation by Kalyuzhna Nataliya H., Kovtun Taras K.

“…The article aims at clarifying the essence of hybrid threats through systematizing their key characteristics and determining preconditions for conflict…”
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