108,681 research outputs found
Magnetically centered liquid column float Patent
Magnetically centered liquid column floa
Health Trainers End of Year Review 1st April 2013 â 31st March 2014
A critical assessment of health trainer activity, with particular reference to the most deprived social groups, and a focus on mental health and wellbeing
Monte Carlo methods and applications for the nuclear shell model
The shell-model Monte Carlo (SMMC) technique transforms the traditional
nuclear shell-model problem into a path-integral over auxiliary fields. We
describe below the method and its applications to four physics issues:
calculations of sdpf- shell nuclei, a discussion of electron-capture rates in
pf-shell nuclei, exploration of pairing correlations in unstable nuclei, and
level densities in rare earth systems.Comment: Proceedings of the Nuclear Structure '98 conference, Gatlinburg, TN,
10-15 August 199
A study of the effect of measurement errors upon a range controller for an entry vehicle
Modified control logic with random-number procedure to determine error effects on range controller of reentry vehicl
Phase noise in distributed oscillators
The phase noise of a distributed oscillator is evaluated very simply by identifying an effective capacitance equal to the total capacitance distributed along the transmission lines. The contributions of the various passive and active noise sources to the total phase noise are calculated revealing several guidelines for improved distributed oscillator designs
Nutritional adequacy and content of food bank parcels in Oxfordshire, UK: a comparative analysis of independent and organisational provision
Background: Food bank use has increased significantly in the UK. With the
rise in demand, it is imperative that users are receiving food parcels that
meet their requirements. The present study aimed to explore whether typical
food parcels, supplied by The Trussell Trust and independent food banks,
were meeting the daily nutrient and energy requirements of an adult user.
Methods: The Trussell Trust (n = 2) and independent food banks (n = 9)
were surveyed in Oxfordshire, UK. Data were collected on food bank use,
resources, donations and parcel content. The energy and nutrient contents
of a representative parcel were compared with the average dietary reference
values (DRVs) for an adult. Additional comparisons were made between
The Trussell Trust and independent provision.
Results: Parcels provided energy, carbohydrate, sugar, protein and fibre
contents that significantly exceeded the DRVs. In total, 62.2% of energy was
provided as carbohydrate and 569% of the DRV was provided by sugars.
The vitamin D and retinol content of the parcels was significantly lower
than the DRVs, meeting 25% and 27% of usersâ needs respectively; provision of all other micronutrients exceeded the DRVs. The Trussell Trustâs
parcels provided significantly less vitamin D and copper than independent
parcels.
Conclusions: Food bank parcels distributed in Oxfordshire, UK, exceeded
energy requirements and provided disproportionately high sugar and carbohydrate and inadequate vitamin A and vitamin D compared to the UK
guidelines. Improved links with distributors and access to cold food storage
facilities would help to address these issues, via increased fresh food
provisio
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The area around the Orion Nebula observed in the CO (J = 1- 0) transition
An area 1 deg2 around the Orion Nebula has been surveyed with a 2.6 km s-1 wide single-channel receiver. The map shows considerable structure in the east including a bright spot 24' (2.8 pc) from the main CO peak
In-State versus Out-of-State Students: The Divergence of Interest between Public Universities and State Governments
This paper examines the divergence of interest between universities and state governments concerning standards for admitting in-state versus out-of-state students. We find that public universities set lower minimum admissions standards for in-state than out-of-state applicants, presumably in response to state pressure; while private universities treat both groups equally. However, we also find that favoring in-state applicants goes against statesâ long-term financial interest. This is because marginal out-of-state students pay higher tuition than marginal in-state students, pay more in future state taxes, and are equally influenced in whether they locate in the state after graduation by attending public university there
Low NOx heavy fuel combustor concept program
Three simulated coal gas fuels based on hydrogen and carbon monoxide were tested during an experimental evaluation with a rich lean can combustor: these were a simulated Winkler gas, Lurgi gas and Blue Water gas. All three were simulated by mixing together the necessary pure component species, to levels typical of fuel gases produced from coal. The Lurgi gas was also evaluated with ammonia addition. Fuel burning in a rich lean mode was emphasized. Only the Blue Water gas, however, could be operated in such fashion. This showed that the expected NOx signature form could be obtained, although the absolute values of NOx were above the 75 ppm goals for most operating conditions. Lean combustion produced very low NOx well below 75 ppm with the Winkler and Lurgi gases. In addition, these low levels were not significantly impacted by changes in operating conditions
Competition Between Stripes and Pairing in a t-t'-J Model
As the number of legs n of an n-leg, t-J ladder increases, density matrix
renormalization group calculations have shown that the doped state tends to be
characterized by a static array of domain walls and that pairing correlations
are suppressed. Here we present results for a t-t'-J model in which a diagonal,
single particle, next-near-neighbor hopping t' is introduced. We find that this
can suppress the formation of stripes and, for t' positive, enhance the
d_{x^2-y^2}-like pairing correlations. The effect of t' > 0 is to cause the
stripes to evaporate into pairs and for t' < 0 to evaporate into
quasi-particles. Results for n=4 and 6-leg ladders are discussed.Comment: Four pages, four encapsulated figure
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