Results 21 to 30 of about 407,586 (267)

Optimization of Extraction Method of Lycium barbarum Flavonoids and the Correlation between Different Ecological Factors and Lycium barbarum Flavonoids

Shipin gongye ke-ji, 2022
Lycium barbarum flavone is the main effective component of Chinese medicinal material Lycium barbarum, and it is also the main evaluation index of its quality.
Pengbo WANG, Xiaorong XIE, Yunyun DAI, Jianshu LIU, Mei CHEN, Xia ZHANG, Dong PEI, Duolong DI   +7 more
doaj   +1 more source

Conditioning of Piezoresistance Coefficient Extraction

, 2000
The necessary and sufficient condition for the piezoresistance coefficient extraction and conditioning of the extraction problem are considered as a problem of the certain matrix A. This matrix is implied by the stress distribution on the certain test structure. For the given test structure matrix A was calculated and the condition number was estimated.
Gniazdowski, Zenon, Koszur, Jan, Kowalski, Pawel   +2 more
openaire   +2 more sources

Effect of temperature on equilibria for physical and reactive extraction of protocatechuic acid

Heliyon, 2020
Owing to its biological and chemical applications, the separation of protocatechuic acid, a polyphenol compound, is of interest to researchers. Extraction studies with initial acid concentration (0.001–0.01 kmol m−3) using aminic extractant tri-n-octyl ...
Fiona Mary Antony, Kailas Wasewar
doaj   +1 more source

Load Profile Extraction by Mean-Shift Clustering with Sample Pearson Correlation Coefficient Distance

Energies, 2018
In this paper, a clustering method with proposed distance measurement to extract base load profiles from arbitrary data sets is studied. Recently, smart energy load metering devices are broadly deployed, and an immense volume of data is now collected ...
Nakyoung Kim, Sangdon Park, Joohyung Lee, Jun Kyun Choi   +3 more
doaj   +1 more source

Feature Classification Method of Frequency Cepstrum Coefficient Based On Weighted Extreme Gradient Boosting

IEEE Access, 2021
Cepstrum coefficient and decision tree classification provide a feasible method for mechanical fault diagnosis. However, this method has the problems of low accuracy of feature extraction and low reliability of feature classification.
Mingsi Qi, Rui Zhou, Qianqian Zhang, Yongsheng Yang   +3 more
doaj   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Low-budget equipment facilitating skid coefficient extraction for traffic accident analysis

Transportation Engineering
Traffic accident reconstructionists play a vital role in providing reliable analyses to justice authorities by examining evidence at accident scenes. Skid marks, a critical form of evidence, are often used to calculate a vehicle's speed.
Vinicius Lima, Umit Karabiyik, Felipe Kennedy, Igor Mello, Jorge Farias, Manoel Martins   +5 more
doaj   +1 more source

The Effect of Damping Coefficient, Spring Coefficient, and Mass Ratio on the Power Extraction Performance of a Semiactive Flapping Wing

International Journal of Aerospace Engineering, 2019
The effect of varying damping coefficient C∗, spring coefficient K∗, and mass ratio M∗ on the semiactive flapping wing power extraction performance was numerically studied in this paper.
Jianyang Zhu
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source