Results 21 to 30 of about 16,748,922 (299)

Is thermal conductivity time‐dependent? [PDF]

open access: yesphysica status solidi (b), 2008
AbstractThe question whether thermal conductivity may be time dependent on short time scales is investigated and answered in the affirmative. For this purpose, we make use of a classical relation between the Brownian mean displacement and the thermal conductivity.
openaire   +1 more source

The assessment of Mungbean seed yield and quality changes in response to environmental factors in different planting dates [PDF]

open access: yesپژوهش‌های حبوبات ایران, 2018
Introduction Planting date is one of the important issues in agronomy that could be changing quantitative and qualitative characteristics of crop seeds.
Seyede Sakineh Hoseini   +4 more
doaj   +1 more source

A Model of a Diaphragm Wall Ground Heat Exchanger [PDF]

open access: yes, 2020
Ground thermal energy is a sustainable source that can substantially reduce our dependency on conventional fuels for heating and cooling of buildings.
Rees, S   +14 more
core   +1 more source

Soma térmica de subperíodos do desenvolvimento da planta de melancia Thermal time of developmental phases in watermelon

open access: yesCiência Rural, 2008
A temperatura do ar é um dos elementos meteorológicos mais importantes que afetam o desenvolvimento da planta de melancia. Para representar o efeito da temperatura do ar sobre o desenvolvimento das plantas, tem-se usado o método da soma térmica, por ser ...
Roberto Trentin   +3 more
doaj   +1 more source

Physical Time and Thermal Clocks [PDF]

open access: yesFoundations of Physics, 2016
In this paper I discuss the concept of time in physics. I consider the thermal time hypothesis and I claim that thermal clocks and atomic clocks measure different physical times, whereby thermal time and relativistic time are not compatible with each other.
openaire   +2 more sources

Thermal time and Tolman–Ehrenfest effect: ‘temperature as the speed of time’ [PDF]

open access: yesClassical and Quantum Gravity, 2011
4 pages; sharpened discussion of the underlying physical ...
Rovelli, Carlo, Smerlak, Matteo
openaire   +3 more sources

Thermal conductivity measurement of liquids in a microfluidic device [PDF]

open access: yes, 2010
A new microfluidic-based approach to measuring liquid thermal conductivity is developed to address the requirement in many practical applications for measurements using small (microlitre) sample size and integration into a compact device.
M. R. Bown   +36 more
core   +1 more source

Short communication: Evaluation of a model for predicting Avena fatua and Descurainia sophia seed emergence in winter rapeseed

open access: yesSpanish Journal of Agricultural Research, 2017
Avena fatua and Descurainia sophia are two important annual weeds throughout winter rapeseed (Brassica napus L.) production systems in the semiarid region of Iran.
Mohammad A. Aboutalebian   +2 more
doaj   +1 more source

Base temperature for node emission and plastochron determination in tomato species and their hybrids [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2018
: The objective of this work was to estimate the base temperature for node emission and plastochron determination in wild species of tomato, in the Redenção cultivar, and in their respective interspecific F1 hybrids.
André Ricardo Zeist   +5 more
doaj   +1 more source

Self-Timed Thermally-Aware Circuits [PDF]

open access: yesIEEE Computer Society Annual Symposium on Emerging VLSI Technologies and Architectures (ISVLSI'06), 2006
Thermal management is becoming increasingly important in circuit designs with high power density. Circuits that overheat beyond specified operating conditions may suffer timing failures, or become damaged for various reasons, including thermal runaway.
David Fang   +2 more
openaire   +1 more source

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