Results 71 to 80 of about 2,959,388 (279)

Use of a 3D Workpiece to Inductively Heat an Ammonia Cracking Reactor

Sustainable Chemistry
Ammonia, widely regarded as the “hydrogen carrier of the future,” offers high hydrogen content, ease of production, and a well-established infrastructure for handling and transportation globally. Meanwhile, ammonia cracking requires a heat supply at high
Debora de Figueiredo Luiz, Martien Koppes, Marija Sarić, Jurriaan Boon   +3 more
doaj   +1 more source

Casimir energy and the superconducting phase transition

, 2006
We study the influence of Casimir energy on the critical field of a superconducting film, and we show that by this means it might be possible to directly measure, for the first time, the variation of Casimir energy that accompanies the superconducting ...
Bimonte G, Enrico Calloni, Giampiero Esposito, Giuseppe Bimonte, Lifshitz E M, Lifshitz E M, Luigi Rosa, Mostepanenko V M, Tinkham M   +8 more
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

Strangeness and pion production as signals of QCD phase transition [PDF]

, 2005
A systematic analysis of data on strangeness and pion production in nucleon–nucleon and central nucleus–nucleus collisions is presented. It is shown that at all collision energies the pion/baryon and strangeness/pion ratios indicate saturation with the ...
Gazdzicki, Marek
core  

Quantum thermodynamics at critical points during melting and solidification processes

, 2014
We systematically explore and show the existence of finite-temperature continuous quantum phase transition (CTQPT) at a critical point, namely, during solidification or melting such that the first-order thermal phase transition is a special case within ...
A. D. Arulsamy, AD Arulsamy, AD Arulsamy, AD Arulsamy, AD Arulsamy, AD Arulsamy, AD Arulsamy, AD Arulsamy, C Ramakrishnan, CS Snow, CV Raman, CV Raman, CV Raman, CV Raman, F Isik, GN Ramachandran, GN Ramachandran, L Cemič, M Lavagna, M Vojta, R Shankar, R Shankar, R Shankar, S Sachdev, SC Gairola, SV Lishchuk, T Vojta, V Tchijov   +27 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Hybrid Energy Storage Modeling and Control for Power System Operation Studies: A Survey

Energies
As the share of variable renewable energy sources in power systems grows, system operators have encountered several challenges, such as renewable generation curtailment, load interruption, voltage regulation problems, and frequency stability threats ...
Muhammad Usman Aslam, Nusrat Subah Binte Shakhawat, Rakibuzzaman Shah, Nima Amjady, Md Sazal Miah, B. M. Ruhul Amin   +5 more
doaj   +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

The Impact of System Sizing and Water Temperature on the Thermal Characteristics of Floating Photovoltaic Systems

Energies
Accurately calculating the annual yield of floating PV (FPV) systems necessitates incorporating appropriate FPV-specific heat loss coefficients into the calculation, including both wind-dependent and wind-independent factors.
Maarten Dörenkämper, Simona Villa, Jan Kroon, Minne M. de Jong   +3 more
doaj   +1 more source

Energy Investments for Africa’s Energy Transition [PDF]

, 2018
The challenge of bringing modern energy to everyone in Africa is a global challenge that requires substantial investments as well as a strong commitment to make the energy sector more effective and efficient within the single countries. This chapter suggests that both African governments and the plethora of foreign investors have the possibility to ...
Manfred Hafner, Simone Tagliapietra, Lucia de Strasser   +2 more
openaire   +2 more sources