Spectroscopic and theoretical calculation insight into interaction mechanism between U(VI) and phospholipid under carbonate environment

2020 ◽  
Vol 305 ◽  
pp. 112852 ◽  
Author(s):  
Shuhong Xiang ◽  
Xiaoqin Nie ◽  
Faqin Dong ◽  
Wencai Cheng ◽  
Mingxue Liu ◽  
...  
Keyword(s):  
Theoretical Calculation ◽  
Interaction Mechanism ◽  
Insight Into

Specific features of penetration and trapping of a magnetic flux in film and bulk YBCO high-temperature superconductors

2018 ◽  
Vol 32 (31) ◽  
pp. 1850346
Author(s):  
Kh. R. Rostami
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Magnetic Flux ◽  
External Field ◽  
High Temperature Superconductors ◽  
Interaction Mechanism ◽  
Differential Method ◽  
Bulk Ybco ◽  
The Magnetic Field ◽  
Insight Into

An oscillatory differential method of local diagnostics of superconductors is applied to the analysis of the trapped magnetic flux and the effective demagnetization factor in YBCO samples. Regular steps over certain intervals of the external field are observed on the magnetic-field dependence of these parameters. It is demonstrated that, as the external field increases, crystallites in a sample are decomposed into sub- and nanocrystallites with a size much less than the penetration depth [Formula: see text] of the magnetic field. The first critical thermodynamic magnetic fields of sub- and nanocrystallites are determined. These results allow one to reveal the interaction mechanism between magnetic and crystalline microstructures of superconductors and provide a deeper insight into the physical processes that occur in high-temperature superconductors (HTSCs) in a magnetic field.

Insight into the Interaction Mechanism of Nicotine, NNK, and NNN with Cytochrome P450 2A13 Based on Molecular Dynamics Simulation

2019 ◽  
Vol 60 (2) ◽  
pp. 766-776 ◽  
Author(s):  
Jorddy Neves Cruz ◽  
Mozaniel Santana de Oliveira ◽  
Sebastião Gomes Silva ◽  
Antonio Pedro da Silva Souza Filho ◽  
Daniel Santiago Pereira ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Cytochrome P450 ◽  
Molecular Dynamics Simulation ◽  
Interaction Mechanism ◽  
Dynamics Simulation ◽  
Insight Into

Biodegradation Mechanism of Anionic Polyacrylamide in Coal Preparation Using Molecular Simulation

2021 ◽  
Author(s):  
Fanglue Wang ◽  
Dongchen Zhang ◽  
Xuefeng Wu ◽  
Shengsong Deng
Keyword(s):  
Hydrophobic Interactions ◽  
Interaction Mechanism ◽  
Docking Study ◽  
Binding Modes ◽  
Frontier Orbital ◽  
Orbital Theory ◽  
Orbital Analysis ◽  
Insight Into ◽  
Anionic Polyacrylamide ◽  
Rhodococcus Sp

Abstract Biodegradation of anionic polyacrylamide (HPAM) and polyacrylate (PAA) by key enzymes, such as amidase and bacterial laccase, have been reported. However, the interaction mechanism between HPAM or PAA and enzymes is still poorly unclear. Here, docking study was undertook to demonstrate the binding modes and interaction details for degradation of HPAM or PAA. Then, bioactivities between PAA and HPAM were compared with frontier orbital theory. The docking results showed that HPAM completely buried in pocket of Rhodococcus sp. N-771 amidase (Rh Amidase), while most of PAA molecule exposed outside pocket of Bacillus subtilis laccase ( B. subtilis laccase ), further suggesting PAA was much more difficult to degrade than HPAM. Hydrophobic interactions and hydrogen bonds were necessary for stabilizing HPAM-Rh Amidase or PAA- B. subtilis laccase complex. The frontier orbital analysis indicated that bioactivity of PAA was higher than that of PAA. These findings provide an insight into enzyme-catalyzed degradation of HPAM. It is helpful in designing highly efficient enzymes against HPAM or PAA to protect environment.

Insight into the Adsorption-Interaction Mechanism of Cr(VI) at the Silica Adsorbent Surface by Evanescent Wave Measurement

Langmuir ◽  
2019 ◽  
Vol 35 (45) ◽  
pp. 14414-14427 ◽  
Author(s):  
Yan Xiong ◽  
Jie Chen ◽  
Ming Duan ◽  
Xiang Li ◽  
Jun Li ◽  
...  
Keyword(s):  
Evanescent Wave ◽  
Interaction Mechanism ◽  
Wave Measurement ◽  
Adsorbent Surface ◽  
Adsorption Interaction ◽  
Silica Adsorbent ◽  
Insight Into

TRANSMISSIBILITY OF WHOLE BODY VIBRATION STIMULI THROUGH HUMAN BODY IN DIFFERENT STANDING POSTURES

2012 ◽  
Vol 12 (03) ◽  
pp. 1250047 ◽  
Author(s):  
LIN YANG ◽  
HE GONG ◽  
MING ZHANG
Keyword(s):  
Knee Joint ◽  
Human Body ◽  
Mechanical Vibration ◽  
Whole Body Vibration ◽  
Interaction Mechanism ◽  
Resonant Peak ◽  
Whole Body ◽  
Vibration Signals ◽  
Body Vibration ◽  
Insight Into

This study focuses on the transmissibility of whole body vibration stimuli through human body in different standing postures to explore the mechanism in which vibration stimuli could be better used as a regimen for bone loss. Five volunteers were guided to stay at three standing postures and imposed of frequency-adjustable vibration stimuli on the plantar surfaces side-alternately. Motion capture system was used to acquire the vibration signals at head, pelvis, knee up, knee down and ankle, from which the transmissibility of vibration stimuli can be obtained. The results showed that transmissibility of vibration stimuli was closely correlated with frequency and skeletal sites. Transmissibility of vibration stimuli in head was much smaller than any other skeletal sites. Transmissibility in the ankle was always in the vicinity of unit one in all the three postures for the vibration stimuli applied side-alternately on the plantar surfaces of both feet. There was an obvious peak around 9 to 11 Hz in the transmissibility curves for knee joint and pelvis. In the resonant peak, transmissibility of vibration stimuli in knee joint and pelvis both exceeded unit one and reached 150%. As the frequency increased after 11 Hz, transmissibility of vibration stimuli decayed rapidly as a function of frequency and dropped to 25% at 30 Hz. This study may help to gain insight into the interaction mechanism between mechanical vibration stimuli and the responses of human musculoskeletal system.

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