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

2016 ◽  
Vol 102 (2) ◽  
pp. 383-388
Author(s):  
S. Le Bagousse ◽  
M. Paquier ◽  
S. Moulin ◽  
C. Colomes
2012 ◽  
Vol 24 (6) ◽  
pp. 843 ◽  
Author(s):  
Daniel Żarski ◽  
Sławomir Krejszeff ◽  
Katarzyna Palińska ◽  
Katarzyna Targońska ◽  
Krzysztof Kupren ◽  
...  

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.


2009 ◽  
Vol 70 (3-4) ◽  
pp. 455-465 ◽  
Author(s):  
Jie-Li Lü ◽  
Jing Zhao ◽  
Jin-Ao Duan ◽  
Hui Yan ◽  
Yu-Ping Tang ◽  
...  

2013 ◽  
Vol 133 (5) ◽  
pp. 3246-3246
Author(s):  
Nadja Schinkel-Bielefeld ◽  
Netaya Lotze ◽  
Frederik Nagel

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3362 ◽  
Author(s):  
Xiao Zhang ◽  
Hongwei Wu ◽  
Xiankuo Yu ◽  
Hanyan Luo ◽  
Yaqi Lu ◽  
...  

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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