Results 1 to 10 of about 2,782,144 (208)

Review of the Development of Science and Technology of Cereals, Oils and Foods in the Past 30 Years

open access: yesLiang you shipin ke-ji, 2023
Cultural inheritance is the spiritual genealogy and life source to sustainable development for a journal. This paper took Science and Technology of Cereals, Oils and Foods (in brief “this journal”) as an example to review.
LI Si-yuan, TAN Hong-zhuo, YOU Meng-chen
doaj   +1 more source

Applying Meta-Analytic-Predictive Priors with the R Bayesian Evidence Synthesis Tools

open access: yesJournal of Statistical Software, 2021
Use of historical data in clinical trial design and analysis has shown various advantages such as reduction of number of subjects and increase of study power. The metaanalytic-predictive (MAP) approach accounts with a hierarchical model for between-trial
Sebastian Weber   +4 more
doaj   +1 more source

Multi-Objective Optimization Research on the Integration of Renewable Energy HVAC Systems Based on TRNSYS

open access: yesBuildings, 2023
Well-designed passive buildings can drastically reduce building energy consumption, and optimal design of air conditioning systems is the key to achieving low operating energy consumption in near-zero energy buildings.
Qiang Si   +4 more
doaj   +1 more source

Characteristic Classes for Difference Operators [PDF]

open access: yesCompositio Mathematica, 1999
We introduce and describe the characteristic class of a difference operator over the difference field (k((t)),τ). Here k is an algebraically closed field of characteristic zero and τ is the k-linear automorphism of k((t)) defined by τ(t)=t/(1+t). The approach is based on the characterization of simple difference operators in terms of their eigenvalues.
Levelt, A.H.M., Fahim, A.
openaire   +3 more sources

TRANSIENT PROCESSES AND DYNAMIC OF VARIABLE SPEED PUMP STORAGE UNIT; pp. 244–256 [PDF]

open access: yesOil Shale, 2013
In this paper, a mathematical model and the structure of variable speed pump storage unit (VSPSU) are proposed. Transient processes of VSPSU main parameters are analyzed.
Rimantas Pranas Deksnys   +1 more
doaj   +1 more source

Characteristics of GaInNAsSb VCSELs operating near 1.55µm [PDF]

open access: yes, 2008
A detailed study of the high-power pulsed operation of C-band optically-pumped GaInNAsSb vertical cavity surface emitting lasers is reported. The devices employ a resonant periodic gain structure grown by molecular beam epitaxy on a GaAs substrate with a
Aers, Geof C.   +7 more
core   +1 more source

Effects of FAME Biofuel and Jet A-1 Aviation Kerosene Blends on the Operating Characteristics of Aircraft Jet Engines

open access: yesApplied Sciences, 2023
The article investigates the possibilities for the miscibility and practical use of different concentrations of biofuel rapeseed fatty acid methyl ester (FAME) with aviation kerosene Jet A-1 (or aviation kerosene PL-7 used in the Air Force of the Slovak ...
Marián Hocko   +2 more
doaj   +1 more source

Numerical Research on Air-source Heat Pump System Combined with Latent Heat Thermal Energy Storage

open access: yesZhileng xuebao, 2022
Latent heat thermal energy storage technology is applied to air-source heat pump systems in cold regions to improve their adaptability. Heat is stored during the day and released at night.
Peng Yajun   +5 more
doaj  

Analysis of Dynamic Operating Characteristics of a Pulse Detonation Turbine Engine

open access: yesAerospace, 2022
In order to obtain the dynamic operating characteristics of a pulse detonation turbine engine (PDTE), a transient model is established considering the shaft dynamics and the volumetric effect of the components in the PDTE.
Wenhao Tan   +3 more
doaj   +1 more source

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