Calculation of barrier potential height using fraction parameter

Based on the analysis of the tense ecological situation in the industrial zones of industrial cities, the role and place of special landscaping areas in the implementation of national projects is substantiated. From the perspective of the ecosystem approach, a set of requirements and a list of priority optimization decisions regarding the planning organization of environmental protection landscaping are proposed. The matrix of situational analysis of the state and the composition of indicators for assessing the barrier potential of a territory with a special land use regime are presented.

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POLES OF S-MATRIX: 1D WELL/BARRIER POTENTIAL

Anais da XXI Semana da Física ◽

10.29327/xxifisica.128766 ◽

2018 ◽

Author(s):

Alexandre Drinko ◽

Fabiano M. Andrade

Keyword(s):

Barrier Potential ◽

S Matrix

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Morphometrics of the aerial roots of Kingia australis (Liliales)

Australian Journal of Botany ◽

10.1071/bt9810081 ◽

1981 ◽

Vol 29 (1) ◽

pp. 81 ◽

Cited By ~ 11

Author(s):

B Lamont

Keyword(s):

Fire History ◽

Dead Zone ◽

Dry Weight ◽

Root Primordia ◽

Stem Apex ◽

Primary Roots ◽

Aerial Roots ◽

History Of ◽

Lateral Branches ◽

Potential Height

Kingia australis, common in the heaths and forests of south-western Australia, is distinguished from all other grass trees in Australia by the presence of a mantle of concealed aerial roots. A ring of up to 50 root primordia is initiated in winter from the stem apex. In plants more than 1 m high, initiation and commencement of elongation of the primary roots are no longer annual but dependent on the fire history of the plant. These roots descend between the stem and persistent leaf bases at about 2 cm per growing month, sending many lateral branches among the leaf bases. Aerial roots gradually replace the space occupied by the leaf bases until they may account for 45% of the dry weight of the aerial caudex. The caudex of one 6-m-high specimen bore up to 27 roots per cm2 transection of the root mantle, with about 3000 primary roots entering the soil. All underground primary roots (except the initial contractile roots) have an aerial origin and are concentrated vertically under the canopy. After 300-400 years the stem starts to die back from the base, and the aerial roots attached to that portion disintegrate. By propping up the stem and bridging the dead zone of the stem, the living aerial roots greatly extend the potential height and longevity of the plant. In addition, the hairy laterals are ideally located to absorb water and nutrients directly from the leaf bases. Protective and aerating functions are also indicated.

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Bound and scattering state solutions of a hyperbolic-type potential

Canadian Journal of Physics ◽

10.1139/cjp-2012-0295 ◽

2013 ◽

Vol 91 (2) ◽

pp. 120-125 ◽

Cited By ~ 1

Author(s):

Ali Ghoumaid ◽

Farid Benamira ◽

Larbi Guechi

Keyword(s):

Hyperbolic Type ◽

Wave Functions ◽

Integral Approach ◽

Centrifugal Term ◽

Scattering Function ◽

S Waves ◽

Barrier Potential ◽

Scattering States ◽

Scattering State ◽

Type Potential

A hyperbolic-type potential with a centrifugal term is solved approximately using the path integral approach. The radial Green's function is expressed in closed form, from which the energy spectrum and the suitably normalized wave functions of bound and scattering states are extracted for (1/2) − [Formula: see text] < σ < (1/2) + [Formula: see text]. Besides, the phase shift and the scattering function Sl for each angular momentum l are deduced. The particular cases corresponding to the s-waves (l = 0) and the barrier potential (σ = 1) are also analyzed.

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Capacitance and barrier potential of near-degenerate semiconductor junctions

IRE Transactions on Electron Devices ◽

10.1109/t-ed.1962.15065 ◽

1962 ◽

Vol 9 (6) ◽

pp. 511-511 ◽

Cited By ~ 1

Author(s):

Y.F. Chang

Keyword(s):

Degenerate Semiconductor ◽

Barrier Potential

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Evaluation of the transformation potential of urbanised landscape (Vilnius case).

Landscape architecture and art ◽

10.22616/j.landarchart.2018.13.03 ◽

2018 ◽

Vol 13 ◽

pp. 28-38

Author(s):

Dalia Dijokiene

Keyword(s):

Visual Effect ◽

Integrated Method ◽

Urban Structures ◽

Heritage Site ◽

Analytical Work ◽

Transformation Potential ◽

Potential Impact ◽

The City ◽

New Buildings ◽

Potential Height

The article analyzes the evaluation of the transformation potential of valuable urbanised landscape. Many of the old towns formed as valuable urbanised landscapes. However, the transformation of urban structures of viable cities, which also entails transformation of urbanised landscapes, is inevitable. Basically, there are only two ways of transformation – either it happens in its own way or it can be professionally controlled. In this article the problem of urbanised landscape transformation is illustrated by the analytical work carried out for the eastern part of the Old Town of Vilnius (UNESCO heritage site). In the eastern part of the Old Town of Vilnius there are two architectural ensembles that form the characteristic panoramas and silhouettes of the Old Town. In this part of the city, various new built-up initiatives have been active since 2007. The article discusses the urban research, the purpose of which was to answer the question about the potential height of the newly designed built up in a former historic suburb of Vilnius. The potential impact of new buildings on the panoramas, silhouettes, dominant elements, and perspectives as well as nominal spaces of that concrete street of the historical suburb is assessed based on the analysis of the towns cape seen from typical external and internal viewing points of the Old Town. The article describes an integrated method of assessing visual effect on the urbanised landscape.

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