Results 81 to 90 of about 5,734,608 (301)

Comparison of input, output energy and global warming potential in rainfed wheat and barley in Aq-Qala (Golestan province) [PDF]

open access: yesعلوم محیطی, 2019
Introduction: In recent years, energy consumption in agriculture has increased dramatically, and modern agriculture has become very scarce in energy. Most of the energy used to produce agricultural products is due to the use of inputs such as machinery,
Mohammad Taghi Feyzbakhsh   +2 more
doaj   +1 more source

Numerical renormalization group calculation of impurity internal energy and specific heat of quantum impurity models [PDF]

open access: yes, 2012
We introduce a method to obtain the specific heat of quantum impurity models via a direct calculation of the impurity internal energy requiring only the evaluation of local quantities within a single numerical renormalization group (NRG) calculation for ...
A. C. Hewson   +5 more
core   +2 more sources

SPECIFICS OF THE ENERGY MARKETS [PDF]

open access: yesCES Working Papers, 2014
In this paper we have analyzed the specific characteristics of the energy markets in general and the products transacted, in particular. Due to its unique features, electricity, one of the most important products for the economic development of a country, has brought challenges to the organization of a liberalized market to be transacted on.
openaire   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

A Review of Energy Use Efficiency in Apple Cultivation: Case Study of Kırklareli Province

open access: yesISPEC Journal of Agricultural Sciences
This study aims to reveal the energy use efficiency (EUE) in apple cultivation. It has been conducted in Kırklareli province of Türkiye during the 2022-2023 production season.
Cihan DEMİR
doaj   +1 more source

Ion-Specific Hydration Effects: Extending the Poisson-Boltzmann Theory

open access: yes, 2011
In aqueous solutions, dissolved ions interact strongly with the surrounding water, thereby modifying the solution properties in an ion-specific manner. These ion-hydration interactions can be accounted for theoretically on a mean-field level by including
Andelman, David   +3 more
core   +1 more source

Method specific Cholesky decomposition: Coulomb and exchange energies [PDF]

open access: yesThe Journal of Chemical Physics, 2008
We present a novel approach to the calculation of the Coulomb and exchange contributions to the total electronic energy in self consistent field and density functional theory. The numerical procedure is based on the Cholesky decomposition and involves decomposition of specific Hadamard product matrices that enter the energy expression.
Boman, Linus   +2 more
openaire   +3 more sources

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Improved Specific Energy Ni-h2 Cell [PDF]

open access: yes
Design optimization activities which have evolved and validated the necessary technology to produce Ni-H2 battery cells exhibiting a specific energy of 75-80 Whr/Kg (energy density approximately 73 Whr/L are summarized.
Miller, L.
core   +1 more source

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