Determination of a Relevant Spatial Anchor for Audio Quality Evaluation of Codecs

The aim of this study was to investigate the process of the cortical reaction in eggs of pikeperch, Sander lucioperca (L.), as well as the application of microscopic assessment of this process in egg quality evaluation. The analysis was carried out with eggs obtained from 10 females by artificial reproduction, in which hormonal stimulation with hCG was applied. Subsequently, each sample of eggs (separately from each female fish) was analysed. The analysis included observation of the cortical reaction and the process of egg swelling, and determination of the effect of temperature (12, 14 and 16°C) and the presence of spermatozoa on the cortical reaction. The results indicate that the cortical reaction in pikeperch eggs is quite violent, resulting in visible deformation of eggs between 3 and 5 min after activation. No effect of temperature or the presence of spermatozoa on the cortical reaction was observed. A strong correlation was recorded for the percentage of egg deformations observed and embryo survival rate. The described method of determination of pikeperch egg quality (based on egg deformation rate between 3 and 5 min after activation) may be highly useful, both in scientific research (where high-quality eggs are required) and in hatchery practice.

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Audio quality evaluation using frequency structural similarity measure

IET International Communication Conference on Wireless Mobile and Computing (CCWMC 2011) ◽

10.1049/cp.2011.0896 ◽

2011 ◽

Author(s):

Chao Gan ◽

Xiangyang Wang ◽

Mengyao Zhu ◽

Xiaoqing Yu

Keyword(s):

Similarity Measure ◽

Quality Evaluation ◽

Structural Similarity ◽

Audio Quality ◽

Structural Similarity Measure

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Quality evaluation of various commercial specifications of Polygoni Multiflori Radix and its dregs by determination of active compounds

Chemistry Central Journal ◽

10.1186/1752-153x-6-53 ◽

2012 ◽

Vol 6 (1) ◽

Cited By ~ 11

Author(s):

Zhitao Liang ◽

Ngon-ngon Leung ◽

Hubiao Chen ◽

Zhongzhen Zhao

Keyword(s):

Quality Evaluation ◽

Active Compounds

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Quality evaluation of Lonicerae Japonicae Flos and Lonicerae Flos based on simultaneous determination of multiple bioactive constituents combined with multivariate statistical analysis

Phytochemical Analysis ◽

10.1002/pca.2882 ◽

2019 ◽

Cited By ~ 3

Author(s):

Zhichen Cai ◽

Chengcheng Wang ◽

Cuihua Chen ◽

Lisi Zou ◽

Chuan Chai ◽

...

Keyword(s):

Statistical Analysis ◽

Simultaneous Determination ◽

Multivariate Statistical Analysis ◽

Quality Evaluation ◽

Bioactive Constituents ◽

Multivariate Statistical

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Quality evaluation ofYanghuo Sanqitablet through a simultaneous determination of five major active flavonoids and three main saponins by HPLC-DAD-ELSD

Acta Chromatographica ◽

10.1556/achrom.25.2013.1.9 ◽

2013 ◽

Vol 25 (1) ◽

pp. 147-157 ◽

Cited By ~ 1

Author(s):

F. X. Zhu ◽

X. B. Jia ◽

Y. Cai ◽

Y. Chen

Keyword(s):

Simultaneous Determination ◽

Quality Evaluation

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Quality Evaluation of Angelica sinensis by Simultaneous Determination of Ten Compounds Using LC-PDA

Chromatographia ◽

10.1365/s10337-009-1222-9 ◽

2009 ◽

Vol 70 (3-4) ◽

pp. 455-465 ◽

Cited By ~ 22

Author(s):

Jie-Li Lü ◽

Jing Zhao ◽

Jin-Ao Duan ◽

Hui Yan ◽

Yu-Ping Tang ◽

...

Keyword(s):

Simultaneous Determination ◽

Quality Evaluation ◽

Angelica Sinensis

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Audio quality evaluation by experienced and inexperienced listeners

The Journal of the Acoustical Society of America ◽

10.1121/1.4805210 ◽

2013 ◽

Vol 133 (5) ◽

pp. 3246-3246

Author(s):

Nadja Schinkel-Bielefeld ◽

Netaya Lotze ◽

Frederik Nagel

Keyword(s):

Quality Evaluation ◽

Audio Quality

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Determination of Bitterness of Andrographis Herba Based on Electronic Tongue Technology and Discovery of the Key Compounds of Bitter Substances

Molecules ◽

10.3390/molecules23123362 ◽

2018 ◽

Vol 23 (12) ◽

pp. 3362 ◽

Cited By ~ 4

Author(s):

Xiao Zhang ◽

Hongwei Wu ◽

Xiankuo Yu ◽

Hanyan Luo ◽

Yaqi Lu ◽

...

Keyword(s):

Chinese Medicine ◽

High Performance ◽

Quality Evaluation ◽

Herbal Remedy ◽

Three Dimensional ◽

Electronic Tongue ◽

Principal Component ◽

Chemical Compositions ◽

Tcm Theory

Andrographis Herba (AH), the dry aerial segments of Andrographis paniculata (Burm.f.) Nees, is a common herbal remedy with bitter properties in traditional Chinese medicine (TCM) theory. Although bitterness is one of the features representing Chinese medicine, it has not been implemented as an index to assess the quality and efficacy of TCM because of peoples’ subjectivity to taste. In this study, 30 batches of AH with different commercial classifications (leaves, stems, or mixtures of both) were collected. Bitterness of AH was quantified by electronic tongue technology. Meanwhile, chemical compositions were characterized through establishing high-performance liquid chromatography fingerprints. The result indicated that the radar curves of the bitterness from different AH commercial classifications displayed different taste fingerprint information. Based on six taste factors, a Principal Component Analysis (PCA) score three-dimensional (3D) plot exhibited a clear grouping trend (R2X, 0.912; Q2, 0.763) among the three different commercial classifications. Six compounds (Peaks 2, 3, 4, 6, 7, 8) with positive correlation to bitterness were discovered by a Spearman correlation analysis. Peaks 2, 6, 7, 8 were identified as andrographolide, neoandrographolide, 14-deoxyandrographolide, and dehydroandrographolide, respectively. The electronic tongue can be used to distinguish AH samples with different commercial classifications and for quality evaluation.

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