Multiwavelength technique for open-path measurements of the concentrations of atmospheric constituents

Liudchik, A. M.

doi:10.1007/s10812-012-9626-y

Cited by 2 publications

(3 citation statements)

References 3 publications

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“…Absorption cross sections of the components whose concentrations are to be determined have distinctive structural features guaranteeing a difference from zero of their differential absorption cross sections. 6. A set of the wavelengths selected for signal measurements provides the linear independence of the absorption cross sections of the analyzed gaseous components.…”

Section: Substantiation Of Doasmentioning

confidence: 99%

“…Compose a system of linear equations, and solve the system to determine the concentrations. 6. Calculate and explore the residual in Eq.…”

Section: Substantiation Of Ooasmentioning

confidence: 99%

“…A proposed solution is very close to the classical differential optical absorption spectroscopy (DOAS) concept and is discussed in [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 98%

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Further advancement of differential optical absorption spectroscopy: theory of orthogonal optical absorption spectroscopy

Liudchik¹

2014

Appl. Opt.

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A modified version of the differential optical absorption spectroscopy (DOAS) method is presented. The technique is called orthogonal optical absorption spectroscopy (OOAS). A widespread variant of DOAS with smoothing of the registered spectrum and absorption cross sections being made employing a polynomial regression is a particular case of OOAS. The concept of OOAS provides a variety of new possibilities for constructing computational schemes and analyzing the influence of different error sources on calculated concentrations.

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Section: Substantiation Of Doasmentioning

confidence: 99%

“…Compose a system of linear equations, and solve the system to determine the concentrations. 6. Calculate and explore the residual in Eq.…”

Section: Substantiation Of Ooasmentioning

confidence: 99%

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Further advancement of differential optical absorption spectroscopy: theory of orthogonal optical absorption spectroscopy

Liudchik¹

2014

Appl. Opt.

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Electrospun Fibre Composite for Controlled Drug Release

Houshyar

Fox

et al. 2020

MRS Advances

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A drug delivery system with sustainable controlled drug release can improve the quality of life of a patient by reducing the side-effects and better absorption of the drug locally. However, the main disadvantageous of this delivery model is the burst release of the drug, which can result in severe health problem, such as toxicity. Here in this study, a new coaxial microfiber has been developed with encapsulated anti-inflammatory drug, ibuprofen, inside the core structure of the coaxial fibre. The core consisting of polyethylene oxide (PEO) carrying the drug was covered with the polylactic acid (PLA)/PEO and shell to prevent the burst release of the drug and provide sustainable release over a prolonged time. The release profiles showed that the burst release was reduced from 20% in control scaffold, core only, to 5% in core-shell structure after 6 hrs. The higher percentage of PLA in the shell composition provides a slower release of ibuprofen, due to the slower degradation of PLA in comparison with PEO. The result indicates the developed structure can be a potential system for the localized release of the various drug system, which leads to a more sustainable and controlled release of the drug over the more extended period and deliver a better outcome along with side-effect prevention.

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Multiwavelength technique for open-path measurements of the concentrations of atmospheric constituents

Cited by 2 publications

References 3 publications

Further advancement of differential optical absorption spectroscopy: theory of orthogonal optical absorption spectroscopy

Further advancement of differential optical absorption spectroscopy: theory of orthogonal optical absorption spectroscopy

Electrospun Fibre Composite for Controlled Drug Release

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