Browsing by Title
Now showing items 10119-10138 of 24196
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High-resolution UKIRT observations of circumnuclear star formation in M100
(1999-01)We present high-resolution, near-infrared imaging of the circumnuclear region of the barred spiral galaxy M100 (=NGC 4321), accompanied by near-infrared spec- troscopy.We identify a total of 43 distinct regions in the ... -
A high-resolution view of the jets in 3C 465
(2020-05-28)We present new high-resolution and high-sensitivity studies of the jets in the WAT source 3C 465, using deep transverse-resolved radio observations from e-MERLIN, and with complementary observations from the VLA. We derive ... -
High-resolution VLA Imaging of Obscured Quasars : Young Radio Jets Caught in a Dense ISM
(2020-06-10)We present new subarcsecond-resolution Karl G. Jansky Very Large Array (VLA) imaging at 10 GHz of 155 ultraluminous (L bol ∼ 1011.7-1014.2 L o˙) and heavily obscured quasars with redshifts z ∼ 0.4-3. The sample was selected ... -
A high-sensitivity polarimeter using a ferro-electric liquid crystal modulator
(2015-05-21)We describe the HIgh Precision Polarimetric Instrument (HIPPI), a polarimeter built at UNSW (The University of New South Wales) Australia and used on the Anglo-Australian Telescope (AAT). HIPPI is an aperture polarimeter ... -
High-sensitivity Stokes spectropolarimetry on cyanobacteria
(2016-02-01)We investigate the spectral signatures arising from the optical properties of chlorophyll in linear and circularly polarised scattered light from cyanobacteria. We include Stokes scattering coefficient measurements on two ... -
High-speed scanning laser diffractometer
(1979)A high-speed laser diffractometer is described which employs a novel scanned array or optical light guides to record the angular intensity variation of light scattered radially by a particle throughout an arc of 180 degrees ... -
High-stress abrasive wear response of 0.2% carbon dual phase steel : Effects of microstructural features and experimental conditions
(2007-06-15)Effects of heat treatment on the high-stress abrasive wear response of 0.2% carbon steel have been investigated at varying applied loads, abrasive (SiC) sizes and sliding distances. The heat treatment involved intercritical ... -
High-throughput allelic discrimination of B and Q biotypes of the whitefly, Bemisia tabaci, using TaqMan allele-selective PCR
(2008-01)BACKGROUND: B and Q biotypes of the whitefly, Bemisia tabaci (Gennadius), are generally regarded as the most significant given their global distribution and strong resistance to insecticides. Since these biotypes can coexist ... -
High-Velocity H I in the Spiral Galaxy NGC 5668
(1996)The nature and origin of the high-velocity clouds (HVCs) of neutral hydrogen in our Galaxy are not well understood, in part because of the uncertain distances to the clouds. As a result it is difficult to measure the mass ... -
High-Velocity Impacts of Pyrophoric Alloy Fragments on Thin Armour Steel Plates
(2021-08-18)The terminal ballistics effects of Intermetallic Reactive Materials (IRM) fragments have been the object of intense research in recent years. IRM fragments flying at velocities up to 2000 m/s represent a realistic threat ... -
The high-volume haemodiafiltration vs high-flux haemodialysis registry trial (H4RT): a multi-centre, unblinded, randomised, parallel-group, superiority study to compare the effectiveness and cost-effectiveness of high-volume haemodiafiltration and high-flux haemodialysis in people with kidney failure on maintenance dialysis using linkage to routine healthcare databases for outcomes
(2022-06-27)Background: More than a third of the 65,000 people living with kidney failure in the UK attend a dialysis unit 2–5 times a week to have their blood cleaned for 3–5 h. In haemodialysis (HD), toxins are removed by diffusion, ... -
Higher current algebras, homotopy Manin triples, and a rectilinear adelic complex
(2023-09-30)The notion of a Manin triple of Lie algebras admits a generalization, to dg Lie algebras, in which various properties are required to hold only up to homotopy. This paper introduces two classes of examples of such homotopy ... -
Higher-spin conserved currents in supersymmetric sigma models on symmetric spaces
(2005-01-12)Local higher-spin conserved currents are constructed in the supersymmetric sigma models with target manifolds symmetric spaces $G/H$. One class of currents is based on generators of the de Rham cohomology ring of $G/H$; a ... -
The highest frequency detection of a radio relic : 16 GHz AMI observations of the 'Sausage' cluster
(2014-06-11)We observed the cluster CIZA J2242.8+5301 with the Arcminute Microkelvin Imager at 16 GHz and present the first high radio-frequency detection of diffuse, non-thermal cluster emission. This cluster hosts a variety of bright, ... -
Highlight on the channel tunnel: editorial introduction
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Highly efficient energy excitation transfer in light-harvesting complexes : the fundamental role of noise-assisted transport
(2009)Excitation transfer through interacting systems plays an important role in many areas of physics, chemistry, and biology. The uncontrollable interaction of the transmission network with a noisy environment is usually assumed ... -
Highly integrated transmitting and receiving phased array with multi-channels and high efficiency in K/Ka-band SatCom application
(2021-07-26)A highly integrated K/Ka-band phased array with duplexing channels for transmitting and dual circularly polarized channels for receiving is presented. To increase both the efficiency and channel isolation, a novel architecture ... -
Highly perturbed molecular gas in infalling cluster galaxies : the case of CGCG97-079
(2015-10-11)We report on CO (J = 2 → 1) mapping with the IRAM 30-m HEtrodyne Receiver Array (HERA) of CGCG 97-079, an irregular galaxy in the merging galaxy cluster Abell 1367 (z = 0.022). We find that ˜80 per cent of the detected CO ...