Zobrazeno 1 - 10
of 65
pro vyhledávání: '"A. N. Ignat'ev"'
Autor:
N. N. Ignat’ev, A. Kh. Bogomolov
Publikováno v:
Moscow University Geology Bulletin. 76:550-555
Publikováno v:
Theoretical Foundations of Chemical Engineering. 54:258-276
A new approach to the synthesis of a multistage heat exchange network is proposed based on the principle of fixation of variables. This principle enables one to reduce a discrete-continuous programming problem to a sequence of linear and nonlinear pr
Publikováno v:
Geomagnetism and Aeronomy. 59:212-220
The results of ground-based microwave measurements of the stratospheric ozone profiles over Moscow during the cold half-years of 2014–2015 and 2015–2016 are presented. The causes of the observed changes in the ozone in the upper stratosphere are
Autor:
A. N. Ignat’ev, Tuula Tuhkanen
Publikováno v:
Environmental Science: Water Research & Technology. 5:1568-1581
This paper provides a glimpse into the removal of dissolved organic matter (DOM) during conventional drinking water treatment and evaluates the potential of high-performance size-exclusion chromatography (HPSEC) as a supplementary tool for routine mo
Publikováno v:
Russian Aeronautics. 61:579-585
To determine the transport factors in multicomponent gaseous media, the authors used an approach based on the molecular-kinetic theory of gases. A mathematical model of the interaction potential of molecules in multicomponent media is proposed. This
Autor:
Tuula Tuhkanen, A. N. Ignat’ev
Publikováno v:
Chemosphere. 214:587-597
A trial monitoring of a typical full-scale municipal WWTP in Central Finland was aimed to explore applicability of high performance liquid chromatography – size exclusion chromatography (HPSEC) with simultaneous UV and fluorescence detection as a t
Publikováno v:
Bulletin of the Lebedev Physics Institute. 45:19-23
New data on variations in vertical distribution of stratospheric ozone overMoscow in the cold half-year of 2015–2016 are presented. This period differed significantly from previous winters in a number of stratospheric parameters. The features of th
Publikováno v:
Geomagnetism and Aeronomy. 57:361-368
This paper reports the study data on variations in the ozone content in the middle stratosphere over Moscow based on millimeter wavelength observations during a range of midwinter sudden stratospheric warmings that occurred in the past two decades. T
Publikováno v:
Measurement Techniques. 59:870-877
A technique of time-frequency analysis of unevenly sampled data sets is developed to study variations in the night mesospheric ozone emission spectra obtained from ground-based millimeter-wave observations. Basic computational formulas as well as res
Publikováno v:
Russian Aeronautics (Iz VUZ). 59:414-418
Proceeding from the first assumption of kinetic-molecular theory, the authors propose the Toms effect on reducing the hydrodynamic drag in a turbulent flow with polymer additives and its usage in power plants, to be explained.