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Heat Transfer Coefficient of a Building: A Constant with Limited Variability or Dynamically Variable?

open access: yesEnergies
The heat transfer coefficient, or the HTC, is an industry-standard indicator of building energy performance. It is predicated on an assumption that it is of a constant value, and several different methods have been developed to measure and calculate the ...
Ljubomir Jankovic   +5 more
doaj   +1 more source

Constant-time connectivity tests

open access: yesCoRR, 2020
We present implementations of constant-time algorithms for connectivity tests and related problems. Some are implementations of slightly improved variants of previously known algorithms; for other problems we present new algorithms that have substantially better runtime than previously known algorithms (estimates of the distance to and tolerant testers
openaire   +2 more sources

Level Reduction of Output Noise of Reference Voltage Sources

open access: yesActa Technologica Agriculturae, 2018
Technologies for processing of digital signals find broad application in all spheres of the human activity, including agriculture. Further perfecting of these technologies is related to increasing of resolving power in analogue-to-digital and digital-to ...
Bondar Sergey   +4 more
doaj   +1 more source

time constant

open access: yes, 2014
Citation: 'time constant' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.T06376 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial
openaire   +2 more sources

A Critical Analysis of the Thermo-Optic Time Constant in Si Photonic Devices

open access: yesPhotonics
The use of integrated heaters is widespread in silicon photonics for waveguide temperature control. The dynamical behavior of the heaters is important for determining their usefulness for certain applications.
David Coenen   +4 more
doaj   +1 more source

Gas Dynamical Capillary Flowmeters of Small and Micro Flowrates of Gases

open access: yesEnergy Engineering and Control Systems, 2015
The possibility of application of glass capillary tubes (CTs) as sensors of small and micro flowrates of gases was justified. The accuracy of a number of CTs flowrate equations was analyzed on the basis of experimental studies of CTs flowrate ...
Ivan Stasiuk
doaj   +1 more source

Some Recent Key Aspects of the DC Global Electric Circuit

open access: yesAtmosphere
The DC global electric circuit, GEC, was conceived by C.T.R. Wilson more than a century ago. Powered by thunderstorms and electrified shower clouds, an electric current I ~1 kA flows up into the ionosphere, maintaining the ionospheric potential V ~250 kV
Michael J. Rycroft
doaj   +1 more source

Autocorrelation structure at rest predicts value correlates of single neurons during reward-guided choice

open access: yeseLife, 2016
Correlates of value are routinely observed in the prefrontal cortex (PFC) during reward-guided decision making. In previous work (Hunt et al., 2015), we argued that PFC correlates of chosen value are a consequence of varying rates of a dynamical evidence
Sean E Cavanagh   +3 more
doaj   +1 more source

A Computational Procedure for Assessing the Dynamic Performance of Diffusion-Controlled Transdermal Delivery Devices

open access: yesPharmaceutics, 2011
: The dynamic performances of two different controlled-release systems were analyzed. In a reservoir-type drug-delivery patch, the transdermal flux is influenced by the properties of the membrane.
Laurent Simon
doaj   +1 more source

In the Interior of Time. Constants and Contrasts

open access: yesHistories of Postwar Architecture, 2023
The significance of the role of the CIAM doctrine in modern Portuguese architecture is undeniable, particularly within the post-war Congresses. The involvement of architects from the Fine Art School of Porto in the CIAM meetings will be empathetic to the different group interpretations of the Corbusian grid, with Alfredo Viana de Lima and Fernando ...
openaire   +2 more sources

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