نتایج جستجو برای: solar irradiation

تعداد نتایج: 181544  

Journal: :Chinese Physics 2023

Solar cell is an important energy source for spacecraft. It significant to study its resistance space particle irradiation. In the past ten years, research hotspot of solar cells has focused on perovskite (PSCs) because their advantages long carrier lifetime, high light absorption performance, low cost and easy preparation. By now photoelectric conversion efficiency PSCs reached 25.5%. Recently...

Journal: :Chemical science 2015
Christine A Caputo Lidong Wang Radim Beranek Erwin Reisner

A system consisting of a [NiFeSe]-hydrogenase (H2ase) grafted on the surface of a TiO2 nanoparticle modified with polyheptazine carbon nitride polymer, melon (CN x ) is reported. This semi-biological assembly shows a turnover number (TON) of more than 5.8 × 105 mol H2 (mol H2ase)-1 after 72 h in a sacrificial electron donor solution at pH 6 during solar AM 1.5 G irradiation. An external quantum...

Journal: :Current problems in dermatology 2007
Liran Horev

Acquired hair loss may be a manifestation of various internal diseases, hormonal and nutritional conditions, systemic intoxications and genetic traits. However, exogenous exposures may be major contributors to hair thinning and decline of texture, color, luster, elasticity and manageability. In this review, we describe the effects of various exogenous agents on hair, including hair cosmetics, t...

2007
Michael Oelgemöller Christian Jung Jochen Mattay

Three photochemical reactions were investigated under solar irradiation conditions with moderately concentrated sunlight: the photoacylation of naphthoquinone with butyraldehyde and the dye-sensitized photooxygenations of citronellol and 1,5-dihydroxynaphthalene, respectively. All reactions were easily performed on multigram-to-kilogram scales using cheap and commercially available starting mat...

Journal: :Chemical communications 2015
Yuanfang Zhang Shuxin Ouyang Qing Yu Peng Li Jinhua Ye

Cu2ZnSnS4 photocathodes with excellent photoelectrochemical properties were fabricated via a facile method of adjusting the sulfur partial pressure in a semi-closed system, which achieved a maximum photocurrent-density of 1.8 mA cm(-2) under irradiation of a solar simulator which is 9-fold larger than that synthesized in an open system.

2010
Yohei Tanaka Kiyoshi Matsuo Shunsuke Yuzuriha

OBJECTIVE Infrared (IR) irradiation specialized with wavelengths and contact cooling increases the amount of water in the dermis to protect the subcutaneous tissues against IR damage; thus, it is applied to smooth forehead wrinkles. However, this treatment consistently induces brow ptosis. Therefore, we investigated whether IR irradiation induces muscle thinning. METHODS Rat central back tiss...

2016
Ha T. Nguyen Joshua M. Pearce

Recently several algorithms have been developed to calculate the solar photovoltaic (PV) potential on the basis of 2.5D raster data that can capture urban morphology. This study provides a new algorithm that (i) incorporates both terrain and near surface shadowing effects on the beam component; (ii) scales down the diffuse components of global irradiation; and (iii) utilizes free and open sourc...

2014
Ilias Bilionis Emil M. Constantinescu Mihai Anitescu

We construct a data-driven model for solar irradiation based on satellite observations. The model yields probabilistic estimates of the irradiation field every thirty minutes starting from two consecutive satellite measurements. The probabilistic nature of the model captures prediction uncertainties and can therefore be used by solar energy producers to quantify the operation risks. The model i...

2011
Yohei Tanaka Kiyoshi Matsuo Shunsuke Yuzuriha

BACKGROUND Moderate sunburn after prolonged sun exposure is thought to cause long-lasting inflammatory vasodilation due to thermal and ultraviolet radiation from the sun. We previously reported that near-infrared irradiation that simulates solar near-infrared can penetrate the skin and nonthermally affect the dermis, superficial muscles, and other tissues. To clarify the possible effect of near...

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