Analysis of thermal stability enhancement in double layer antiferromagnetically coupled media

2002 ◽  
Vol 91 (10) ◽  
pp. 7688 ◽  
Author(s):  
Lijie Guan ◽  
Jian-Gang Zhu
Keyword(s):  
Thermal Stability ◽  
Double Layer ◽  
Stability Enhancement

scholarly journals Thermal stability enhancement of Cr2AlC coatings on Zr by utilizing a double layer diffusion barrier

2020 ◽  
Vol 40 (4) ◽  
pp. 1119-1124 ◽  
Author(s):  
Stanislav Mráz ◽  
Miléna Tyra ◽  
Moritz to Baben ◽  
Marcus Hans ◽  
Xiang Chen ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Double Layer ◽  
Diffusion Barrier ◽  
Stability Enhancement

Hydrophobicity Density Profiles to Predict Thermal Stability Enhancement in Proteins

2006 ◽  
Vol 25 (7-8) ◽  
pp. 529-535 ◽  
Author(s):  
Angel Mozo-Villarías ◽  
Juan Cedano ◽  
Enrique Querol
Keyword(s):  
Thermal Stability ◽  
Density Profiles ◽  
Stability Enhancement

Coercivity and Thermal Stability Enhancement for Spark-Plasma-Sintered Nanocrystalline NdFeB Magnets With Dy2O3 and Zn Additions

2015 ◽  
Vol 51 (11) ◽  
pp. 1-4
Author(s):  
Z. W. Liu ◽  
L. Z. Zhao ◽  
S. L. Hu ◽  
H. Y. Yu ◽  
X. C. Zhong ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ndfeb Magnets ◽  
Spark Plasma ◽  
Stability Enhancement

Wear resistance and thermal stability enhancement of PDC sintered with Ti-coated diamond and cBN

2020 ◽  
Vol 92 ◽  
pp. 105278 ◽  
Author(s):  
Zhaoran Chen ◽  
Dejiang Ma ◽  
Shanmin Wang ◽  
Wenhao Dai ◽  
Pinwen Zhu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Wear Resistance ◽  
Stability Enhancement

scholarly journals Protein Thermal Stability Enhancement by Designing Salt Bridges: A Combined Computational and Experimental Study

PLoS ONE ◽  
2014 ◽  
Vol 9 (11) ◽  
pp. e112751 ◽  
Author(s):  
Chi-Wen Lee ◽  
Hsiu-Jung Wang ◽  
Jenn-Kang Hwang ◽  
Ching-Ping Tseng
Keyword(s):  
Thermal Stability ◽  
Experimental Study ◽  
Salt Bridges ◽  
Protein Thermal Stability ◽  
Stability Enhancement

scholarly journals Ultrathin W space layer-enabled thermal stability enhancement in a perpendicular MgO/CoFeB/W/CoFeB/MgO recording frame

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Jae-Hong Kim ◽  
Ja-Bin Lee ◽  
Gwang-Guk An ◽  
Seung-Mo Yang ◽  
Woo-Seong Chung ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Space Layer ◽  
Stability Enhancement

New Host-Guest Polymeric System for Thermal Stability Enhancement of Electro Optic Effect

2002 ◽  
Vol 725 ◽  
Author(s):  
Seung Koo Park ◽  
Jung Yun Do ◽  
Jung-Jin Ju ◽  
Suntak Park ◽  
Myung-Hyun Lee
Keyword(s):  
Thermal Stability ◽  
Model Compound ◽  
Main Chain ◽  
Side Chain ◽  
Hydroxyl Groups ◽  
New Host ◽  
Polymer Main Chain ◽  
Electro Optic ◽  
Chromophore Concentration ◽  
Stability Enhancement

AbstractA new host-guest electro optic (EO) polymer, in which a chromophore can be reacted with the polymer main chain during poling to give the corresponding side-chain EO polymer, has been prepared for improving EO effect and its thermal stability. Polyisoimide (PII) synthesized from 2, 2-bis (4-aminophenyl) hexafluoropropane and oxydiphthalic anhydride and Disperse Red 1 (DR1) were used as a host and a guest, respectively. A model compound reaction and Infrared spectra of the host-guest film after annealing at various temperatures show that the reaction between the isoimide groups in PII and the hydroxyl groups in DR1 occurs around 140 °C. The glass transition temperatures of the resulting EO polyamic aicd ester-imide copolymer with 0, 10, 20 and 30 wt. % of chromophore concentration were 275, 219, 160, and 124 °C, respectively. The EO coefficient obtained at a wavelength of 1.55 νm was 5.3 and 10.5 pm/V from the EO polymer film with 20 and 30 wt. % DR1. The EO signals exhibited only a slight decay at high temperature due to the chemical reaction between the host and guest during poling.

Thermal stability enhancement of SnO2/Ag/SnO2 transparent electrodes using Ni-doped Ag

2020 ◽  
Vol 141 ◽  
pp. 106503
Author(s):  
Min-Ho Hwang ◽  
Heon Kong ◽  
Ji-Won Jeong ◽  
Hyun-Yong Lee
Keyword(s):  
Thermal Stability ◽  
Transparent Electrodes ◽  
Stability Enhancement

scholarly journals Novel Chaperones RrGroEL and RrGroES for Activity and Stability Enhancement of Nitrilase in Escherichia coli and Rhodococcus ruber

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 1002 ◽  
Author(s):  
Chunmeng Xu ◽  
Lingjun Tang ◽  
Youxiang Liang ◽  
Song Jiao ◽  
Huimin Yu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Large Scale ◽  
Nitrile Hydratase ◽  
Fusion Expression ◽  
Solvent Tolerance ◽  
Rhodococcus Ruber ◽  
Bacterial Cells ◽  
E Coli ◽  
Nitrilase Activity ◽  
Stability Enhancement

For large-scale bioproduction, thermal stability is a crucial property for most industrial enzymes. A new method to improve both the thermal stability and activity of enzymes is of great significance. In this work, the novel chaperones RrGroEL and RrGroES from Rhodococcus ruber, a nontypical actinomycete with high organic solvent tolerance, were evaluated and applied for thermal stability and activity enhancement of a model enzyme, nitrilase. Two expression strategies, namely, fusion expression and co-expression, were compared in two different hosts, E. coli and R. ruber. In the E. coli host, fusion expression of nitrilase with either RrGroES or RrGroEL significantly enhanced nitrilase thermal stability (4.8-fold and 10.6-fold, respectively) but at the expense of enzyme activity (32–47% reduction). The co-expression strategy was applied in R. ruber via either a plasmid-only or genome-plus-plasmid method. Through integration of the nitrilase gene into the R. ruber genome at the site of nitrile hydratase (NHase) gene via CRISPR/Cas9 technology and overexpression of RrGroES or RrGroEL with a plasmid, the engineered strains R. ruber TH3 dNHase::RrNit (pNV18.1-Pami-RrNit-Pami-RrGroES) and TH3 dNHase::RrNit (pNV18.1-Pami-RrNit-Pami-RrGroEL) were constructed and showed remarkably enhanced nitrilase activity and thermal stability. In particular, the RrGroEL and nitrilase co-expressing mutant showed the best performance, with nitrilase activity and thermal stability 1.3- and 8.4-fold greater than that of the control TH3 (pNV18.1-Pami-RrNit), respectively. These findings are of great value for production of diverse chemicals using free bacterial cells as biocatalysts.

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