Results 81 to 90 of about 6,987,863 (341)

Dinámica de la frecuencia del Sistema Interconectado Ecuador-Colombia

open access: yesRevista Científica de Ingeniería Energética, 2010
This paper presents a procedure to study the dynamics of the frequency of theinterconnected system Ecuador-Colombia when a generation unit comes out of thesystem, and when one doesn't have the necessary information of the electric Colombiansystem ...
Marcelo Arias ; Antonio Martínez
doaj  

Wealth inequality and dynamic stability [PDF]

open access: yesJournal of Economic Theory, 2005
In this paper we explore the link between wealth inequality and stability in a two-sector neoclassical growth model with heterogeneous agents. The stability of the steady state depends on the various parameters of the model and in particular on individual preferences.
Christian Ghiglino, Christian Ghiglino
openaire   +5 more sources

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Dynamics and stability of the Gödel universe [PDF]

open access: yesClassical and Quantum Gravity, 2004
We use covariant techniques to describe the properties of the Godel universe and then consider its linear response to a variety of perturbations. Against matter aggregations, we find that the stability of the Godel model depends primarily upon the presence of gradients in the centrifugal energy, and secondarily on the equation of state of the fluid ...
Christos G. Tsagas   +2 more
openaire   +3 more sources

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Increase of dynamic stability stoke of autonomous energy system based on wind energy installtions under sudden load change

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2016
Nowadays, wind power engineering is developing in two equal directions. The first one is the increase of rated power for a single wind turbine by mass and dimensions parameters of a wind turbine with the use of high-voltage generators.
Sergey Nikolaevich Udalov   +3 more
doaj  

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

DYNAMIC MATRIX GAMES AND THEIR MIXED EXTENSION

open access: yesВестник Кемеровского государственного университета, 2014
A new class of game models, called dynamic matrix games (DMG) was introduced in [2] as a generalization of the classical matrix games considering the time factor.
N. N. Danilov
doaj  

Circulating histones as clinical biomarkers in critically ill conditions

open access: yesFEBS Letters, EarlyView.
Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez   +17 more
wiley   +1 more source

Coordinated Optimization of Generator Excitation System for Improving Transmission Capacity of Power System

open access: yesZhongguo dianli, 2019
For long-distance AC transmission system from energy base to load center, the system damping is insufficient when N–1 fault occurs, which leads to the reduction of transmission capacity.
Guanhong WANG   +6 more
doaj   +1 more source

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