نتایج جستجو برای: vertical density profile
تعداد نتایج: 702379 فیلتر نتایج به سال:
In this study, we investigate the transparency of an overdense inhomogeneous plasma slab. This anomalous transmission is achieved when the conditions provided for the incident electromagnetic wave to excite coupled surface waves on the both sides of the slab. These conditions require that the homogeneous overdense plasma, or the metallic film, is placed between two dielectric layers. Here, the ...
Electrode layer or electrical boundary layer is one of the charge generators in the global atmospheric electric circuit. In spite of this we find very few model studies and few measurements of it in the literature. Using a new technique it is shown that in this layer, the space charge density varies exponentially in vertical. A new experimental method based on the surface measurements is discus...
Introduction: Water ice and ilmenite both have unique dielectric responses that can be used to detect their concentration as a function of depth, noninvasively from the lunar surface. Electrical measurements at the surface can also be used to determine the density of the lunar regolith. Subsurface water ice may exist in permanently shadowed regions near the poles of the Moon [1-6]. The presence...
The Japanese flying squid, Todarodes pacificus, is thought to spawn neutrally buoyant egg masses that retain a specific location in the water column by floating at the interface between water layers of slightly different densities. It is important to understand the physical process that determines the vertical distribution of the egg masses to predict their horizontal drift in relation to embry...
Abstract. X-ray Earth occultation sounding (XEOS) is an emerging method for measuring the neutral density in lower thermosphere. In this paper, (XEO) of Crab Nebula investigated using Hard Modulation Telescope (Insight-HXMT). The pointing observation data on 30 September 2018 recorded by low-energy telescope (LE) Insight-HXMT are selected and analysed. extinction light curves spectra during pro...
[1] Column-integrated moist static energy (MSE) budgets were calculated using daily data from three reanalyses (1998–2001) and ISCCP radiative cooling. The MSE export by the circulation was separated into vertical and horizontal MSE advection components in order to examine how observationally-derived vertical motion profiles affect gross moist stability calculations. In a 2000 km-wide region in...
[1] The problem of electron density inversion of digital ionograms is reconsidered from the viewpoints of new possibilities and of modern requirements. The data processing system of an advanced ionosonde (the dynasonde) provides accurate measurements not only of echo group range but also of direction of arrival, among other physical parameters, thus yielding the three-dimensional distribution o...
Background and purpose: Psoriasis is a common chronic and recurrent inflammatory skin disorder characterized by hyper proliferation of keratinocytes and infiltration of T cells, monocytes/macrophages and neutrophils to dermis and epidermis. Prevalence of cardiovascular disorders is remarkable in patients with psoriasis compared to normal individuals. Psoriasis is believed to have associations w...
in the paper we developed a new method to determine the absolute amount of adsorption. this method relies on the excess adsorption isotherm and the density profile in the pore of one material. to compute the density profile and decrease complex calculation of obtaining the absolute amount of adsorption we introduced simplified local-density (sld) model. a few of appropriate parameters were acqu...
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