نتایج جستجو برای: cone calorimeter

تعداد نتایج: 44690  

Journal: :Journal of composites science 2023

This paper discusses two major issues: (i) understanding the influence of solvent used for fibre processing to obtain flame-retardant chicken feathers, and (ii) establishing importance fibre–matrix blending temperature before composite manufacturing. Three profiles extrusion die have been taken into consideration: a low-temperature profile (40 °C) (LT-FRCF), medium-temperature (120 (MT-FRCF), h...

2007
H. Hillemanns J. Schwenke M. Häring

Beside the intrinsic characteristics of the CMS electromagnetic calorimeter components like crystal quality and APD performance, the wrapping of the crystals can have a impact on the overall calorimeter performance. The results of test measurements, which have been performed at PSI using different crystals and wrappings are reported and discussed.

2008
A. Shahinyan E. Chudakov E. Hovhannisyan H. Voskanyan

A hodoscope calorimeter comprising of 704 lead-glass blocks is described. The calorimeter was constructed for use in the JLab Real Compton Scattering experiment. The detector provides a measurement of the coordinates and the energy of scattered photons in the GeV energy range with resolutions of 5 mm and 6%/ p Eγ [GeV ], respectively. Design features and performance parameters during the experi...

2007
A Simon

We present an application of the SPACAL spaghetti calorimeter prototype 1; 2) in the CERN hyperon beam experiment WA89. First results on the performance of the upgraded SPACAL calorimeter in a high rate experimental environment are presented. In order to reconstruct invariant masses from ? hyperons in nal states, the energy of the decay neutrons and their impact point have to be determined with...

Journal: :iranian journal of materials science and engineering 0
e. najafi kani semnan university, 35196-45399, semnan, iran m. nejan semnan university, 35196-45399, semnan, iran a. allahverdi iran university of science and technology, narmak, tehran, iran

this article addresses the interplay between heat of hydration and physico-mechanical properties of calcium sulfate hemi-hydrate in the presence of retarding additives such as citric and malic acids and sodium citrate. the heat of hydration was measured using a semi-isothermal calorimeter. results proved that citric and malic acids had superior impact on hydration and mechanical properties. whi...

2000
J. Daures A. Ostrowsky P. Gross

At BNM-LNHB, the references in terms of absorbed dose to water are based on graphite calorimeter measurements. In the cobalt-60 beam, measurements were performed directly with the graphite calorimeter in a graphite phantom. Absorbed dose to water in a water phantom was then determined using a transfer method by means of relative measurements made with ionisation chambers and Fricke dosimeters. ...

Journal: :Journal of applied physiology 1997
J L Seale W V Rumpler

A dual direct/indirect room-sized calorimeter is used at the Beltsville Human Nutrition Research Center to measure heat emission and energy expenditure in humans. Because the response times of a gradient layer direct calorimeter and an indirect calorimeter are not equivalent, the respective rate of heat emission and energy expenditure cannot be directly compared. A system of equations has been ...

1999
F. Nessi-Tedaldi

An overview is given of the Lead Tungstate (PbWO4) electromagnetic crystal calorimeter for the CMS detector at the Large Hadron Collider (LHC) at CERN in Geneva. This includes a description of the engineering design, the development of the calorimeter components, the read-out system and results obtained in particle beams. Presented at IEEE Nuclear Science Symposium, Toronto, Canada, November 19...

2007
Sandro Palestini

II. EXPERIMENTAL REQUIREMENTS ON CALORIMETER Decays of K mesons into ππ are reconstructed imposing that the four photons detected by the calorimeter have invariant mass equal to the kaon mass, checking that the kaon candidate parent is collinear with the beam direction, and that gamma pairs can be reconstructed as originating from π decays. The main detector requirements can be classified as fo...

2009
Edmund Storms

The characteristics of and errors associated with Seebeck calorimeters, as applied to the Fleischmann-Pons Effect, are described. This type of calorimeter as well as a flow type calorimeter were used to measured apparent excess energy from the same sample of platinum plated with palladium and other materials.

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