Criteria to Establish an Evaluation Methodology for the Qualification of the Visual Impact of Solar Thermal Systems on Urban Landscapes

Abstract

This paper introduces the criteria to establish a methodology for the valuation and evaluation of the visual impact that may be produced by solar thermal energy systems on urban landscapes. A systematics to interrelate the characteristics of solar thermal systems and the characteristics of the urban landscape by means of matrixes is introduced. Three different urban landscape typologies have been considered. The result of the interaction shall be the visual impact of a solar thermal system on an urban landscape, which may vary from a minimum to a maximum (including different levels of acceptance).

Photocatalytic conversion of methane

“…Under UV irradiation at 493 K, with the same amount of V loading, a mesoporous silica-supported photocatalyst was reported to show much higher activity to produce formaldehyde than the amorphous silica-supported version. 28 The yield and selectivity of formaldehyde product were ca. 0.3% and 95.4%, respectively.…”

Fabrication and Red-Color Lasing of Individual Highly Uniform Single-Crystal CdSe Nanobelts

“…In recent years, considerable effort has been made to study one-dimensional (1D) semiconductor nanostructures (nanowires and nanoribbons) for their promising properties and potential wide applications in nano/microscaled devices. [1][2][3][4][5] More importantly, 1D wide-band semiconductor nanostructures have been observed to work as waveguide cavities and can give stimulated emission or lasing under high-intensity excitation [6][7][8][9][10][11][12][13] and thus be used as nanolasers. Where ZnO, GaN, and ZnS nanowires or nanobelts are candidates for near-ultraviolet (UV) nanolasers, 10-12 a blue or green light emitting nanolaser might be possible if using 1D CdS nanostructures.…”

Molecular Orientation and Fluorescence Studies on Naphthalene Acetate Intercalated Zn2Al Layered Double Hydroxide

“…The horizontal (H) and vertical (V) polarized fluorescence spectra were recorded for a common horizontally polarized excitation light as a function of the twist angle δ of the thin film with respect to the excitation (and emission) beam. A linear relationship between the fluorescence dichroic ratio (D HV defined as the ratio of H and V polarized emission spectra, D HV tI HH /I HV ) and the twist angle δ (a right-angle configuration between the excitation and the emission beam) was established by means of 16,17 D HV )…”

“…However, this is of particularly rather low precision without taking into account the intermolecular interactions of guest, coexisting anions, moisture content, etc. Polarized fluorescence, [15][16][17] resulted from the ordered arrangement of chromophore guest, can be employed as a structure probe for the orientation of guest, since it provides useful information on molecular mobility, size, shape, and flexibility, fluidity of a medium, and order parameters. 18 It has been used to determine the orientation of cationic dyes incorporated in the Laponite host.…”

“…18 It has been used to determine the orientation of cationic dyes incorporated in the Laponite host. 16,17 Although there have been some molecular dynamics studies on the arrangement of interlayer guest, to the best of our knowledge, no experimental study with high accuracy for the orientation of guest anion in the interlayer region of LDHs has been reported.…”