Results 71 to 80 of about 9,059,750 (314)

A Comprehensive Thermal and Structural Transient Analysis of a Boiler’s Steam Outlet Header by Means of a Dedicated Algorithm and FEM Simulation

Energies, 2019
Increasing the share of renewables in energy markets influences the daily operation of thermal power units. High capacity power units are more frequently operated to balance power grids and, thus, steam boilers are exposed to unfavorable transient states.
Marcin Pilarczyk, Bohdan Węglowski, Lars O. Nord   +2 more
doaj   +1 more source

Performance Analysis of Combined Cycle with Air Breathing Derivative Gas Turbine, Heat Recovery Steam Generator, and Steam Turbine as LNG Tanker Main Engine Propulsion System

Journal of Marine Science and Engineering, 2020
This study explains the performance analysis of a propulsion system engine of an LNG tanker using a combined cycle whose components are gas turbine, steam turbine, and heat recovery steam generator. The researches are to determine the total resistance of
Wahyu Nirbito, Muhammad Arif Budiyanto, Robby Muliadi   +2 more
doaj   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Numerical Model of a Variable-Combined-Cycle Engine for Dual Subsonic and Supersonic Cruise

Energies, 2013
Efficient high speed propulsion requires exploiting the cooling capability of the cryogenic fuel in the propulsion cycle. This paper presents the numerical model of a combined cycle engine while in air turbo-rocket configuration.
Victor Fernandez-Villace, Guillermo Paniagua   +1 more
doaj   +1 more source

Biomass Pyrolysis and Gasification Comprehensive Modeling for Effective Power Generation at Combined Cycle Power Plant

, 2017
Thermogravimetric experiments were carried out for a few types of wood with determination of the kinetic parameters characterizing the pyrolysis process. In the present work the various kinetic models used for this purpose are suggested.
A. V. Fedyukhin, I. A. Sultanguzin, A. Gyul’maliev, V. Sergeev   +3 more
semanticscholar   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Techno-economic assessment of a solar-based novel power generation system formed from a helium Brayton cycle and an organic Rankine flash cycle

Frontiers in Energy Research
The essential element of human existence is energy. However, conventional energy sources are steadily running out, and it is necessary to create an energy-efficient renewable power generation system.
Achintya Sharma, Anoop Kumar Shukla, Onkar Singh, Onkar Singh, Meeta Sharma   +4 more
doaj   +1 more source

Integration of circadian and hypoxia signaling via non‐canonical heterodimerization

FEBS Letters, EarlyView.
CLOCK, BMAL1, and HIFs are basic helix‐loop‐helix and Per‐Arnt‐Sim domain (bHLH‐PAS) proteins, which function as transcription factors. bHLH‐PAS proteins are designated in two classes. Many class I proteins are regulated by environmental signals via their PAS domains, but such signals have not been identified for all.
Sicong Wang, Katja A. Lamia
wiley   +1 more source

Comparative Analysis of Thermodynamic Cycles of Selected Nuclear Ship Power Plants With High-Temperature Helium-Cooled Nuclear Reactor

Polish Maritime Research, 2018
This paper presents a comparative analysis of thermodynamic cycles of two ship power plant systems with a high-temperature helium-cooled nuclear reactor.
Szewczuk-Krypa Natalia, Grzymkowska Anna, Głuch Jerzy.   +2 more
doaj   +1 more source