Results 51 to 60 of about 7,958 (294)

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

An evaluation of operation and creep life of stationary gas turbine engine [PDF]

, 2012
During operation, gas turbine components undergo various types of timedependent degradation due to high temperatures and mechanical loading. In the case of stationary GT engines for mechanical power, creep failure mechanism problems are a very common ...
Eshati, Samir
core  

INVESTIGASI LAJU REGANGAN CREEP BAJA TAHAN KARAT FERRITIC PADA TEMPERATUR 570 °C

Rekayasa Mesin
The probabilistic assessment of failure due to the creep phenomenon must be determined with the minimum deviation. Since the creep failure took years before rupture, laboratory experiments were conducted to represent the failure time.
I Made Wicaksana Ekaputra
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Short-term creep approach to redefining the role of 17-4PH stainless steel for high-temperature applications

Scientific Reports
The creep response of the 17-4PH martensitic age-hardening steel in H1150 state was investigated at 427 and 482 °C. Hardness measurements of the heads of the creep samples demonstrated that the material underwent additional age hardening during the high ...
S. Spigarelli, M. Cabibbo, A. Santoni, E. Santecchia   +3 more
doaj   +1 more source

Constant load creep data in air and vacuum on 2.25Cr-1Mo steel from 600 °C to 700 °C

Materials Research, 2005
Creep results on 2.25Cr-1Mo were obtained at 600 °C, 650 °C and 700 °C at five stress levels, under constant load, in air and vacuum. Two chambers were specially developed for carrying out creep testing in controlled environment, with the ...
Levi de Oliveira Bueno, Vitor Luiz Sordi, Luiz Marino   +2 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

An evaluation of the capability of data conversion of impression creep test [PDF]

High temperature power plant components are now working far beyond their operative designed life. Establishing their in-service material properties has become a matter of significant concern for power generation companies.
Sun, Wei, Lockyer, S., Hulance, J., Ab Razak, N., Davies, C.M., McCartney, D.G., Cacciapuoti, B., Morris, A.   +7 more
core   +1 more source

Enhanced creep resistance of Y-bearing 9Cr ferritic/martensitic steel via vacuum casting technique

Journal of Materials Research and Technology, 2019
9Cr ferritic/martensitic (F/M) steels with 0 and 0.3 wt.% yttrium (Y) addition were fabricated via vacuum casting technique and were creep tested at 650 °C and 120 MPa. The creep property of 9Cr F/M steel was improved by the addition of yttrium.
Yingxue Chen, Zhiyuan Hong, Xiaoxin Zhang, Min Xia, Qingzhi Yan, Changchun Ge   +5 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source