Results 11 to 20 of about 117,431,911 (302)

In situ measurements of interstellar dust [PDF]

open access: yesInternational Astronomical Union Colloquium, 1997
AbstractWe present the mass distribution of interstellar grains measured in situ by the Galileo and Ulysses space probes as cumulative flux. The derived in situ mass distribution per logarithmic size interval is compared to the distribution determined by fitting extinction measurements.
Landgraf, M., Gruen, E.
openaire   +3 more sources

Measurement of thermal transmittance of opaque facade wall relationship with meteorological conditions [PDF]

open access: yesTehnika, 2015
This paper presents the results of measurements of thermal transmittance or as otherwise called U-value [W/m2⋅K] of opaque facade wall of preschool institution built in 1977.
Antunović Biljana S.   +2 more
doaj   +1 more source

Preliminary results for the extraction and measurement of cosmogenic in situ C-14 from quartz [PDF]

open access: yes, 2004
Radiocarbon is produced within minerals at the earth's surface (in situ production) by a number of spallation reactions. Its relatively short half-life of 5730 yr provides us with a unique cosmogenic nuclide tool for the measurement of rapid erosion ...
Anderson, R.   +4 more
core   +2 more sources

In situ Measurement of Thermodiffusion in Liquid Alloys [PDF]

open access: yesPhysical Review Letters, 2019
Temperature gradients can change the concentration distribution in multicomponent materials. This cross-coupling effect of heat and mass transfer is difficult to measure in liquid alloys. We present a new method using x-ray radiography in combination with a high temperature furnace to measure thermodiffusion in melts time and space resolved.
Sondermann, Elke   +2 more
openaire   +7 more sources

Optical In-Process Measurement: Concepts for Precise, Fast and Robust Optical Metrology for Complex Measurement Situations

open access: yesApplied Sciences, 2021
Optical metrology is a key element for many areas of modern production. Preferably, measurements should take place within the production line (in-process) and keep pace with production speed, even if the parts have a complex geometry or are difficult to ...
Ralf B. Bergmann   +2 more
doaj   +1 more source

Ex-Situ Archeologierapport 6

open access: yes, 2020
In opdracht van RDM Architecten is een archeologisch bureau-onderzoek uitgevoerd door Ex-Situ Archeologie. Aanleiding voor het uitvoeren van het onderzoek is het voornemen om een appartementencomplex te realiseren aan de kruising van de Laauwikstraat en ...
Oosterbaan, drs J. (Ex-Situ Archeologie B.V.)   +1 more
core   +1 more source

An in-situ thermoelectric measurement apparatus inside a thermal-evaporator

open access: yes, 2023
At the ultra-thin limit below 20 nm, a film’s electrical conductivity, thermal conductivity, or thermoelectricity depends heavily on its thickness. In most studies, each sample is fabricated one at a time, potentially leading to considerable uncertainty ...
Bui-Thanh G.   +11 more
core   +1 more source

Comparison of Current Five-Point Cylindricity Error Separation Techniques

open access: yesApplied Sciences, 2018
Cylindricity is a kind of three-dimensional form distortion of a cylinder. An accurate in situ measurement of cylindricity is relatively complex because measuring and reconstructing cylindrical profile and evaluating out-of-cylindricity should be ...
Wenwen Liu, Penghao Hu, Kuangchao Fan
doaj   +1 more source

In-situ Analysis of Laminated Composite Materials by X-ray Micro-Computed Tomography and Digital Volume Correlation [PDF]

open access: yes, 2013
The complex mechanical behaviour of composite materials, due to internal heterogeneity and multi-layered composition impose deeper studies. This paper presents an experimental investigation technique to perform volume kinematic measurements in composite ...
Dupré, J.C.   +9 more
core   +1 more source

Experimental Comparative Study between Conventional and Green Parking Lots: Analysis of Subsurface Thermal Behavior under Warm and Dry Summer Conditions

open access: yesAtmosphere, 2021
Green infrastructure has a role to play in climate change adaptation strategies in cities. Alternative urban spaces should be designed considering new requirements in terms of urban microclimate and thermal comfort.
Ryad Bouzouidja   +14 more
doaj   +1 more source

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