نتایج جستجو برای: way chemometric methods
تعداد نتایج: 2245217 فیلتر نتایج به سال:
Different chromatographic and electrophoretic techniques commonly used in the instrumental inspection of herbal medicines (HM) are first comprehensively reviewed. Chemical fingerprints obtained by chromatographic and electrophoretic techniques, especially by hyphenated chromatographies, are strongly recommended for the purpose of quality control of herbal medicines, since they might represent a...
With the help of chemometric resolution methods, a technique for qualitative and quantitative determination of the volatile chemical constituents in radix Flemingiae Philippinensis by chromatography-mass spectrometry was developed. After the overlapping chromatographic peaks were resolved into pure chromatograms and spectra using a heuristic evolving latent projections (HELP) method, qualitativ...
Alzheimer's disease (AD) is increasingly becoming one of the greatest medical challenges. Due to the social and financial burden of AD, detection of AD in its early stages is a topic of major research interest. Thus, emergence of well-validated screening methods for fast detection of AD in the early stages would be of great importance. It is now recognized that the homeostasis and serum bioavai...
In this study, the simultaneous determination of verapamil hydrochloride and gliclazide in pharmaceuticals by chemometric approaches using UV spectrophotometry has been reported. Verapamil hydrochloride (VER) (Benzeneacetonitrile, α-[3-[[2-(3,4-dimethoxyphenyl) ethyl] methylamino]propyl]-3,4-dimethoxy-α-(1-methylethyl) hydrochloride) is an L-type calcium channel blocker of the phenylalkylamine ...
Chemometrics is the application of statistical and mathematical methods to analytical data to permit maximum collection and extraction of useful information. It is a data-driven interdisciplinary science suitable for solving diverse applications. This review focuses mainly on various chemometric models used and their applications in the pharmaceutical sciences.
Comparative wood anatomy is the most accepted (traditional) method for identification. However, there an ongoing search effective where traditional methods may be insufficient in distinguishing on species level. Near-infrared spectroscopy (NIRS) one of developing data Scots pine, black sessile oak and Hungarian were collected examined spectral range 12,000–4000 cm−1 with a resolution 4 cm−1. Da...
In wireless communication, relays are devices that receive and forward radio signals. Relays are attractive as they can increase the coverage of cellular networks. Moreover, relays improve the robustness of the wireless radio communication as they create additional signal paths. In this thesis, we propose novel schemes for oneand two-way communication in wireless relay networks. We aim to selec...
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