Now showing items 1-20 of 263

• #### Acoustic Methods for Obtaining the Pressure Reflection Coefficient from a Buffer Rod Based Measurement Cell ﻿

(IEEE, 2008-08-08)
The known acoustic methods for obtaining the pressure reflection coefficient from a buffer rod based measurement cell are presented, along with 2 new generic approaches for measuring the pressure reflection coefficient ...
Journal articlePeer reviewed
• #### The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events ﻿

(Elsevier, 2010-10-01)
The design, construction, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the main device for pattern recognition, tracking, and identification of charged particles in the ALICE experiment ...
Journal article
• #### An altitude and distance correction to the initial fluence distribution of TGFs ﻿

(Wiley, 2014-10)
The source fluence distribution of terrestrial gamma ray flashes (TGFs) has been extensively discussed in recent years, but few have considered how the TGF fluence distribution at the source, as estimated from satellite ...
Journal article
• #### Analysis of Ozone (O3) and Erythemal UV (EUV) measured by TOMS in the equatorial African belt ﻿

(Academy of Science of South Africa, 2010-01-19)
We presented time series of total ozone column amounts (TOCAs) and erythemal UV (EUV) doses derived from measurements by TOMS (Total Ozone Mapping Spectrometer) instruments on board the Nimbus-7 (N7) and the Earth Probe ...
Journal article
• #### ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at $\sqrt{s}$=7 TeV ﻿

(Springer, 2013-01)
Mass and angular distributions of dijets produced in LHC proton-proton collisions at a centre-of-mass energy $\sqrt{s}$=7 TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated ...
Journal article
• #### Azimuthal anisotropy of D-meson production in Pb-Pb collisions at √sNN =2.76 TeV ﻿

(American Physical Society, 2014-09)
The production of the prompt charmed mesons D0, D+, and D*+ relative to the reaction plane was measured in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon collision of √sNN=2.76TeV with the ALICE detector ...
Journal article
• #### The BABAR detector: Upgrades, operation and performance ﻿

(Elsevier, 2013-11-21)
The BaBar detector operated successfully at the PEP-II asymmetric e+e− collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the ...
Journal article
• #### Bacterial proteins with cleaved or uncleaved signal peptides of the general secretory pathway ﻿

(Elsevier, 2011-12-21)
Correct protein compartmentalization is a key step for molecular function and cell viability, and this is especially true for membrane and externalized proteins of bacteria. Recent proteomic reports of Bacillus subtilis ...
Journal article
• #### Beauty production in pp collisions at √s=2.76 TeV measured via semi-electronic decays ﻿

(Elsevier, 2014-11)
The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y|<0.8 and transverse momentum 1<pT<10 GeV/c, in pp ...
Journal article
• #### Birkeland current effects on high-latitude ground magnetic field perturbations ﻿

(Wiley, 2015-09-18)
Magnetic perturbations on ground at high latitudes are directly associated only with the divergence-free component of the height-integrated horizontal ionospheric current, J⊥,df. Here we show how J⊥,df can be expressed as ...
Journal article
• #### Characteristics of the flank magnetopause: Cluster observations ﻿

(WileyAmerican Geophysical Union, 2014-11)
The magnetopause is a current sheet forming the boundary between the geomagnetic field on one side and the shocked solar wind on the other side. This paper discusses properties of the low-latitude dawn and dusk flanks ...
Journal article
• #### Charged-Higgs production in the Two-Higgs-doublet model — the τ ν channel ﻿

(Springer, 2015-06-15)
We update the allowed parameter space of the CP-violating 2HDM with Type II Yukawa couplings, that survives the current experimental and theoretical constraints on the model. For a representative set of allowed parameter ...
Journal article
• #### Charged-particle multiplicities in $pp$ interactions at $\sqrt{s}$ = 900 GeV measured with the ATLAS detector at the LHC ﻿

(Elsevier, 2010-04)
The first measurements from proton-proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy ...
Journal article
• #### Charged-particle multiplicity measurement in proton–proton collisions at √s = 0.9 and 2.36 TeV with ALICE at LHC ﻿

(Springer, 2010-07-12)
Charged-particle production was studied in proton–proton collisions collected at the LHC with the ALICE detector at centre-of-mass energies 0.9 TeV and 2.36 TeV in the pseudorapidity range |η|<1.4. In the central region ...
Peer reviewedJournal article
• #### Charged-particle multiplicity measurement in proton–proton collisions at √s = 7 TeV with ALICE at LHC ﻿

(Springer, 2010-08-03)
The pseudorapidity density and multiplicity distribution of charged particles produced in proton–proton collisions at the LHC, at a centre-of-mass energy Ös=7s=7 TeV, were measured in the central pseudorapidity region ...
Peer reviewedJournal article
• #### Chlorophyll a fluorescence lifetime reveals reversible UV-induced photosynthetic activity in the green algae Tetraselmis ﻿

(Springer, 2015)
The fluorescence lifetime is a very useful parameter for investigating biological materials on the molecular level as it is mostly independent of the fluorophore concentration. The green alga Tetraselmis blooms in summer, ...
Journal article
• #### Climatology of aerosol optical properties in Northern Norway and Svalbard ﻿

(European Geosciences Union, 2012-12-07)
We present comparisons between estimates of the aerosol optical thickness and the °Angstr¨om exponent in Northern Norway and Svalbard based on data from AERONET stations at Andenes (69 ◦N, 16 ◦E, 379 m altitude) and ...
Peer reviewedJournal article
• #### Cluster observations of a field aligned current at the dawn flank of a bursty bulk flow ﻿

(European Geosciences Union, 2007-06-29)
This article describes observations of a bursty bulk flow (BBF) in the outer central plasma sheet. The observations are made with the Cluster satellites, located approximately 19RE downtail, close to the midnight sector ...
Journal articlePeer reviewed
• #### Combined positron emission tomography and computed tomography to visualize and quantify fluid flow in sedimentary rocks ﻿

(AGU (American Geophysical Union) Publications, 2015-09-22)
Here we show for the first time the combined positron emission tomography (PET) and computed tomography (CT) imaging of flow processes within porous rocks to quantify the development in local fluid saturations. The coupling ...
Journal article
• #### Comparison of planar and 3D silicon pixel sensors used for detection of low energy antiprotons ﻿

(IEEE, 2014-12)
The principle aim of the AEḡIS experiment at CERN is to measure the acceleration of antihydrogen due to Earth’s gravitational field. This would be a test of the Weak Equivalence Principle, which states that all bodies ...
Journal article