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Showing 1 to 20 of 771 for “"CF"”.
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Measurement of work function in CF₄ gas
CF4 gas is useful in many applications, especially as a drift gas in particle detection chambers. In order to make accurate measurements of incident particles the properties of the drift gas must be well understood. An important property of CF4 which is important for determining particle energy in …
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ASPECTS OF RECYCLING OF CARBON FIBRE REINFORCED POLYETHERETHERKETONE (CF/PEEK)
… carbon fibre reinforced polyetheretherketone (CF/PEEK) composite, as it is an expensive material worth recycling. In its virgin form, CF/PEEK has excellent mechanical properties. Thus it is hoped that even after recycling, the extent of degradation to its mechanical properties will still be …
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Gamma and neutron dose profiles near a Cf-252 brachytherapy source
A new generation of medical grade Cf-252 sources was developed in 2002 at the Oak Ridge National Laboratory (ORNL). The combination of small size and large activity of these Cf-252 sources makes them suitable to be used with the conventional high-dose-rate (HDR) remote afterloading systems for …
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Shape and Structure of Neutron-Rich from Cf-252 Fission Fragments
… as fission fragments from <super>252</super>Cf fission. The detector setup consisted of the Gammasphere spectrometer and the Hercules fast-plastic array. This allowed the measurement of asymmetric DSAM lineshapes at different Gammasphere detector angles with respect to the fission axis. The …
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Multiscale corrosion of zirconium carbide, carbon, and CF/ZRC under extreme environments
… carbons, and carbon fiber/zirconium carbide (Cf/ZrC) composites. Initial analysis focused on the ultra-high temperature oxidation behavior of hot-pressed substoichiometric zirconium carbide in a highly controlled test environment. Investigations were performed using isothermal flow-tube …
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Population Fragmentation and Genetic Diversity of Chrosomus sp. cf. saylori (Clinch Dace)
Clinch Dace (Chrosomus sp. cf. saylori) is a newly recognized species of minnow with a restricted distribution in southwestern Virginia. Field sampling and genetic analysis support the hypothesis that Clinch Dace populations are small and fragmented. Analysis of neutral genetic markers shows that …
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The CFTR Folding Pathway: Implications for the Identification and Development of CF Therapeutics
… Fibrosis Transmembrane Conductance Regulator (CFTR) protein is a member of the ABC transporter superfamily, important for Cl- conductance at the apical cell membrane. Loss-of-function of CFTR leads to Cystic Fibrosis (CF), a fatal genetic disease affecting 70,000 people worldwide. There are …
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A model of the directional sensitivity of low-pressure CF₄ dark matter detectors
… directional detection method using low-pressure CF₄ gas detectors with optical readout. This work constructs a model for the directional reconstruction ability of DMTPC detectors, evaluates the model against calibration data, and finally uses the model to project the directional sensitivity of …
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Representation of Minoritized People with Cystic Fibrosis in CF Therapeutics Development Network Clinical Studies
Black and Hispanic people with CF (PwCF) experience a greater burden of worse health outcomes related to pulmonary disease compared to White, non-Hispanic PwCF. Prior evidence suggests that these communities are underrepresented in clinical research in CF. We used clinical study data from four …
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Characterisation of exacerbations in non-CF Bronchiectasis to establish endpoints in measuring treatment efficacy
Bronchiectasis is characterised by chronic cough productive of mucopurulent sputum and frequent exacerbations. We have aimed to validate clinical, biochemical and microbiological endpoints to aid planning of future interventional studies. We recruited fifty-eight subjects with bronchiectasis at the …
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Neutron dosimetry, moderated energy spectrum, and neutron capture therapy for ²⁵{45}R²Cf medical sources
Examination of neutron dosimetry for 252Cf has been conducted using calculative and experimental means. Monte Carlo N-ParticIe (MCNP) transport code was used in a distributed computing environment as a parallel virtual machine (PVM) to determine the absorbed neutron dose and neutron energy spectrum …
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Proximate Causes of Alternative Reproductive Tactics in Blue Ridge Two-Lined Salamanders (Eurycea cf. wilderae)
… Ridge two-lined salamanders (<em>Eurcyea</em> cf. <em>wilderae</em>) in the form of male polymorphism. Two male morphs exist: “searching” males and “guarding” males. Each phenotype has a unique reproductive ecology and associated discrete morphological differences. Another trait that shows …
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Distribution and Life History of Chrosomus sp. cf. saylori in the Upper Clinch River Watershed, Virginia
In 1999, a new species of minnow, Chrosomus sp. cf. saylori (Clinch dace), was discovered in the Tennessee drainage of Virginia. Chrosomus sp. cf. saylori are listed as a Federal Species of Concern and on Virginia\'s Wildlife Action Plan as Tier II- Very High Conservation Need because of potential …
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Characteristics of light charged particle emission in spontaneous and neutron induced fission of Cm and Cf isotopes
… – 246Cm(SF), 247Cm(n,f) – 248Cm(SF), 249Cf(n,f) – 250Cf(SF) and 251Cf(n,f) – 252Cf(SF). With all these new results, measured with suited DE-E telescope detectors, a significant enlargement of the existing data base was realised. The data set permits to make some important observations. …
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Distribution and Population Characterization of Clinch Dace (Chrosomus sp. cf. saylori) in the Upper Clinch River System, Virginia
The Clinch Dace Chrosomus sp. cf. saylori is a species of minnow known from only two counties in Virginia. Prior surveys established the species' presence in just eight tributaries to the upper Clinch River. A management plan, which should include both population monitoring and habitat restoration, …
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Distribuição espaço-temporal de Scolelepsis cf. squamata (Muller, 1808) (Polychaeta: Spionidae) como ferramenta para estudos da dinâmica sedimentar costeira
A population of the spionid polychaete Scolelepis cf. squamata was studied on Dois Rios beach, an embayed oceanic beach located at Ilha Grande (a coastal island), at the southeastern Brazilian coast. The relationship between beach morphodynamics and the spatial-temporal distribution of this species …
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