Search Results - "Kolev, N. I."

Lidar and spectroradiometer measurements of atmospheric aerosol optical characteristics over an urban area in Sofia, Bulgaria by Evgenieva, Ts. T., Kolev, N. I., Ts. Iliev, I., Savov, Pl. B., Kaprielov, B. K., Devara, P. C. S., Kolev, I. N.

“…A series of campaigns involving a systematic investigation of the atmosphere over an urban area of Sofia city were carried out. A European Aerosol Research…”
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Three-point observation in the troposphere over Sofia-Plana Mountain, Bulgaria by Evgenieva, T, Wiman, B. L. B, Kolev, N. I, Savov, P. B, Donev, E. H, Ivanov, D. I, Danchovski, V, Kaprielov, B. K, Grigorieva, V. N, Iliev, I, Kolev, I. N

“…Based on a novel combination of approaches and instruments, this article presents campaign-based results from atmospheric boundary layer (ABL) height and…”
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Influence of the boundary layer development on the ozone concentration over an urban area by Kolev, N. I., Savov, P. B., Kaprielov, B. K., Grigorieva, V. N., Kolev, I. N.

“…Results obtained during two campaigns (summer 2004 and autumn 2005) of observation of the planetary boundary layer dynamics over the Sofia city urban area are…”
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Experimental study of polarization characteristics of lidar signal in case of occlusion front by Kolev, I. N., Tatarov, B. I., Savov, P. B., Trifonov, T. T., Kaprielov, B. K.

“…In this work, experimental data of a light detection and ranging (lidar) polarization study of cloud formations in a case of warm occlusion front in winter are…”
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Recent ozone investigations over Bulgaria by remote sensing: Ground-based and satellite data by Gogosheva, Ts.N., Grigorieva, V.N., Evgenieva, Ts.T., Mendeva, B.D., Kolev, N.I., Krastev, D.G., Petkov, B.H.

“…This presentation deals with the recent investigations of the dynamics of the total ozone content (TOC) and of the lower troposphere ozone over Bulgaria,…”
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Film boiling on vertical plates and spheres by Kolev, N.I.

“…Part 1 of this work presents a closed analytical solution for mixed-convection film boiling on vertical walls. Heat transfer coefficients predicted by the…”
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How accurately can we predict nucleate boiling? by KOLEV, N. I

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Shock waves in multiphase flow of fuel–coolant interaction by Hulin, Huang, Kolev, N.I.

“…The interaction of fuel and coolant (FCI) is a complex multiphase process due to the fact that the fragmentation and heat transfer process are not easy to cast…”
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Uncertainty and sensitivity analysis of a postexperiment simulation of nonexplosive melt-water interaction by KOLEV, N. I, HOFER, E

“…Results from applications of computer models are subject to uncertainty. This is basically due to model and parameter uncertainties. Model uncertainty arises…”
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Mathematical modeling of an nonequilibrium flow consisting of water, steam, and air by Kolev, N. I.

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Dynamic model of A mixture of nonequilibrium steam-water flow, uncondensed gas, and boric acid by Kolev, N. I.

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IVA_5M numerical method for analysis of three-fluid multi-component flows in boundary-fitted multi-blocks by Kolev, Nikolay Ivanov

“…This paper presents a numerical solution method for multi-phase flow analysis based on local volume and time averaged conservation equations. The emphasis of…”
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Possibility of reducing the maximum design pressure in the containment vessel of the VV V-1000 by Kolev, N. I.

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Lidar observation of breeze stucture during the transition periods at the Southern Bulgarian Black Sea coast by Skakalova, Toni S, Savov, Plamen B, Grigorov, Ivan V, Kolev, Ivan N

“…The paper presents a study of the sea-breeze transition periods performed using the relative volume extinction coefficient of the aerosol. The study is based…”
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IVA-2: A computational program for modeling three-dimensional, three-phase, three-component flows using three velocity fields in cylindrical geometry with an arbitrary structure by Kolev, N. I.

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Lidar investigation of the temporal and spatial distribution of atmospheric aerosols in mountain valleys by Savov, P B, Skakalova, T S, Kolev, I N, Ludwig, F L

“…Lidar experiments were conducted in the mountainous region of Bulgaria to determine the spatial and temporal distribution of major aerosol sources and the…”
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Concentration depolarization of fluorescence in excitation by intense light fluxes by Voropai, E. S., Gaisenok, V. A., Dudarev, I. A., Kolev, I. N., Sarzhevskii, A. M.

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Lidar Investigation of the Temporal and Spatial Distribution of Atmospheric Aerosols in Mountain Valleys by Savov, P B, Skakalova, T S, Kolev, IN, Ludwig, F L

“…Lidar experiments were conducted in the mountainous region of Bulgaria to determine the spatial and temporal distribution of major aerosol sources and the…”
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Lidar Investigation of the Temporal and Spatial Distribution of Atmospheric Aerosols in Mountain Valleys by Savov, Plamen B., Skakalova, Toni S., Kolev, Ivan N., Ludwig, Francis L.

“…Lidar experiments were conducted in the mountainous region of Bulgaria to determine the spatial and temporal distribution of major aerosol sources and the…”
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