Results 51 to 60 of about 245,926 (300)

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Co-based zeolitic imidazolate framework ZIF-9 membranes prepared on alpha-Al2O3 tubes through covalent modification for hydrogen separation

open access: yes, 2020
Hydrogen has been regarded as the most promising clean and renewable energy. Beside the production of the hydrogen, the separation of hydrogen is also an import issue before it can be used in fuel cells. Membrane-based separation technologies have gained
Liu, Jiaqin   +2 more
core   +1 more source

Hydrogen separation in La5.5WO11.25−δ membranes

open access: yesJournal of Membrane Science, 2013
Tungstates Ln(6)WO(12) are proton conducting crystalline materials which show significant mixed protonic and electronic conductivity and stability in moist CO2 environments. These materials are promising candidates for hydrogen separation membranes at temperatures above 700 degrees C, especially when integrated in intensified processes as catalytic ...
Escolástico Rozalén, Sonia   +4 more
openaire   +3 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Development and characterization of platinum-palladium ceramic membranes for fuel cell application. [PDF]

open access: yes, 2007
Membran pembaur hidrogen dan alumina terpilih semakin mendapat tempat dalam bidang pemisahan gas kerana hidrogen merupakan sumber industri bagi pembuatan bahan-api dan berbagai jenis Uatran kimia.
Othman, Mohd Roslee, Ahmad, Abd. Latif
core  

Origin of hydrogen embrittlement in vanadium-based hydrogen separation membranes

open access: yes, 2018
Hydrogen embrittlement in metals is a challenging technical issue in the proper use of hydrogen energy. Despite extensive investigations, the underlying mechanism has not been clearly understood.
Shim, JH, Ko, WS, Jeon, JB, Lee, BJ
core   +1 more source

HIx system thermodynamic model for hydrogen production by the sulfur-iodine cycle [PDF]

open access: yes, 2009
The HIx ternary system (H2O – HI – I2) is the latent source of hydrogen for the Sulfur – Iodine thermo-chemical cycle. After analysis of the literature data and models, a homogeneous approach with the Peng-Robinson equation of state used for both the ...
Hadj-Kali, Mohamed   +6 more
core   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

open access: yesMolecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh   +12 more
wiley   +1 more source

Hydrogen Production with Membrane Systems

open access: yes, 2017
It is well-known that hydrogen is conventionally produced via reforming of fossil fuels in large-scale plants. Apart from small-scale hydrogen production from renewable energy sources (mostly using electricity from renewable sources), more than 80% of ...
E. Fernandez   +14 more
core   +1 more source

Bunsen section thermodynamic model for hydrogen production by the sulfur-Iodine cycle [PDF]

open access: yes, 2009
A model for the Bunsen section of the Sulfur – Iodine thermo-chemical cycle is proposed, where sulfur dioxide reacts with excess water and iodine to produce two demixing liquid aqueous phases (H2SO4 rich and HI rich) in equilibrium.
Hadj-Kali, Mohamed   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy