Results 61 to 70 of about 1,702,166 (311)

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

High-temperature tensile strength of C/SiC composite under laser-induced high heating flux in an aerobic environment

Scientific Reports
Based on the advantages of laser high brightness, a high-temperature mechanical property measuring device has been developed, which can measure the high-temperature strength of C/SiC composites under the condition of short-term high-temperature rise rate
Jiawei Wang, Bin Li, Shanshan Wang, Shunlei Zhang, Pengling Yang, Chenghua Wei, Yanlong Shen   +6 more
doaj   +1 more source

A Review of Methods Used to Reduce the Effects of High Temperature Associated with Polyamide 12 and Polypropylene Laser Sintering

Advances in Polymer Technology, 2020
The polymer laser sintering (PLS) process is one of the most promising additive manufacturing (AM) technologies for polymeric materials. However, the technique has challenges because the physical, mechanical, and chemical properties of the polymeric ...
Fredrick M. Mwania, Maina Maringa, Kobus van der Walt   +2 more
doaj   +1 more source

Fracture of brittle materials at high temperature

, 1978
Abstract : Ceramic materials offer the potential for significantly increased operating temperatures, increased efficiency and lower costs for gas turbine engines. However, the brittle nature and resulting catastrophic mode of failure of ceramic materials requires a design approach based on consideration of crack nucleation and growth.
N J Tighe, S M Wiederhorn
openaire   +1 more source

Study of high temperature bearing materials [PDF]

, 1969
Experimental investigation identifies materials suitable for use in potassium lubricated turbo-generator journal bearing and shaft applications at high temperatures.
Frank, R. G.
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Twofold rigidity activates ultralong organic high-temperature phosphorescence

Nature Communications
A strategy is pioneered for achieving high-temperature phosphorescence using planar rigid molecules as guests and rigid polymers as host matrix. The planar rigid configuration can resist the thermal vibration of the guest at high temperatures, and the ...
Kaijun Chen, Yongfeng Zhang, Yunxiang Lei, Wenbo Dai, Miaochang Liu, Zhengxu Cai, Huayue Wu, Xiaobo Huang, Xiang Ma   +8 more
doaj   +1 more source

Tribology of carbon-containing materials at high temperatures

Journal of Physics: Conference Series, 2019
Abstract The work is devoted to high-temperature flaboratory tribological tests of carbon-containing materials and their modification. The studies have shown that at a temperature of 300-600 º C and a load of 1.0 MPa, the friction coefficient of the carbon-containing composition material samples processed in the environment Se-PTFE on ...
V V Alisin, M N Roshchin
openaire   +1 more source

High-pressure/high-temperature synthesis of transition metal oxide perovskites [PDF]

, 2006
Perovskite and related Ruddlesden-Popper type transition metal oxides synthesised at high pressures and temperatures during the last decade are reviewed. More than 60 such new materials have been reported since 1995.
Attfield, J. Paul, Rodgers, Jennifer A., Williams, Anthony J.   +2 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source