The MANTRA (Middle Atmosphere Nitrogen TRend Assessment) 2004 campaign took place in Vanscoy, Saskatchewan, Canada (52 N, 107 W) from 3 August to 15 September, 2004. In support of the main balloon launch, a suite of five zenith-sky and direct-Sun-viewing UV-visible ground-based spectrometers was deployed, primarily measuring ozone and NO2 total columns. Three Fourier transform spectrometers (FT...

Aluminum doped zinc oxide (ZnO:Al) thin films with high conductivity, resistance to ion irradiation, high transparency in the visible range and moderate costs will be one of the most promising candidates for the present predominant transparent conducting materials. However, there are still some problems such as long preparation cycle and high surface resistance. In this paper, adding a certain ...

HE PRINCIPAL SUBJECT MATTER of this paper is the description of a thod of obtaining a calibration curve relating apparent absorbancy 81) and concentration (x). It is frequently observed that the orbancy index decreases with increasing concentration in cases in ich one would expect Beer’s law, A = log(10/I) = KX, to hold. For ample, with our instrument, the absorbancy index at 273.5 m of a lutio...

The optical degradation of encapsulants from ultraviolet (UV) radiation has historically resulted in a significant loss performance throughout the life photovoltaic (PV) module. International Electrotechnical Commission (IEC) test methods have recently been developed to screen for PV prone performance. present study was performed benchmark polymeric packaging materials relative IEC 62788-1-4 (c...

the potential of tobacco waste as a viable source of medicinally important flavonoids like rutin has been investigated. three flavonoids, apigenin, quercetin and rutin, have been isolated from waste tobacco leaves, and their identities have been confirmed by uv-visible, 1h-nmr and 13c-nmr spectroscopy. by using analytical hplc, the amount of rutin present in the tobacco leaves, before and after...

Here we introduce a novel strategy for turbidimetric monitoring of bacterial growth in liquid culture. The instrumentation comprises a light source, a customized 3D printed culture tube holder and a miniaturized spectrophotometer, connected through optical cables. Due to its small footprint and the possibility to operate with external light, bacterial growth was directly monitored from culture ...

Beam splitters are primarily used for applications like avionic displays, optical storage, fluorescence applications, interferometry, semiconductor instrumentation where some of the information needs to be reflected as well transmitted. They operate on principle light being and transmitted by various interfaces it is split percentage overall intensity or wavelength. In this study, design fabric...

Herein, reduced graphene-oxide-supported ZrO2 and Y2O3 (rGO-ZrO2 rGO-Y2O3) nanocomposites were synthesized by hydrothermal method used as the catalysts for photodegradation of picric acid. The structural morphological properties samples characterized using an X-ray diffractometer (XRD), scanning electron microscope (SEM) with energy dispersive absorption spectroscopy (EDAX), UV-Vis spectrophoto...