Inertial reference unit

Unit provides rate damping, linear velocity changes and angular position information to attitude control system during turns and motor burns

Gas flow environmental and heat transfer nonrotating 3D program

The experimental contract objective is to provide a complete set of benchmark quality data for the flow within a large rectangular turning duct. The data are to be used to evaluate and verify three-dimensional internal viscous flow models and computational codes. The analytical contract objective is to select such a computational code and define the capabilities of this code to predict the experimental results. Details of the proper code operation will be defined and improvements to the code modeling capabilities will be formulated

How cold will it be? Prospects for NHS funding: 2011- 2017

NHS spending in England may have more than doubled in real terms since 1999/2000, but the prospects for future funding now look bleak. Although there is consensus that the NHS faces a tough financial future, there is no agreement about just how cold the financial climate will be. Starting with a look at historical funding for the NHS, The King's Fund and the Institute for Fiscal Studies set out three plausible future funding scenarios and their consequences. The paper concludes with an assessment of each scenario and the options for funding up to 2017

Investigation of a coilable lattice column

Structural stability of lattice column of longerons and helical brace

An evaluation of boron-polymer film layer composites for high-performance structures

Fabricability, mechanical properties, and structural efficiency potentials of boron-polymer film layer composite

Britain's fiscal squeeze: the choices ahead

The economic and financial crisis that has unfolded over the last two years has caused a dramatic deterioration in the UK's public finances, with public sector borrowing set to peak this year at a level not seen since the Second World War and public sector indebtedness set to climb to levels not seen since the late 1960s. With the next general election less than a year away, the Government and the main opposition parties alike will be under pressure to offer more detailed proposals to repair the public finances. This note discusses some of the key questions all the parties will have to grapple with

Real-time simulation clock

The invention is a clock for synchronizing operations within a high-speed, distributed data processing network. The clock is actually a distributed system comprising a central clock and multiple site clock interface units (SCIUs) which are connected by means of a fiber optic star network and which operate under control of separate clock software. The presently preferred embodiment is a part of the flight simulation system now in current use at the NASA Langley Research Center

Aditional Ultra-High-Resolution Observations of Ca+ Ions in the Local Insterstellar Medium

We present ultra-high-resolution (0.35 km s−1 FWHM) observations of the interstellar Ca K line towards seven nearby stars. The spectral resolution was sufficient to resolve the line profiles fully, thereby enabling us to detect hitherto unresolved velocity components, and to obtain accurate measurements of the velocity dispersions (b values). Absorption components with velocities similar to those expected for the Local Interstellar Cloud (LIC) and the closely associated ‘G cloud’ were identified towards six of the seven stars. However, in most cases the b values deduced for these components were significantly larger than the b ≈ 2.2 km s−1 (i.e. Tk ≈ 7000 K, vt ≈ 1 km s−1) expected for the LIC, and it is argued that this results from the presence of additional, spectrally unresolved, components having similar velocities and physical conditions. For two stars (δ Vel and α Pav) we detect interstellar components with much smaller b values (1.1 ± 0.3 and 0.8 ± 0.1 km s−1, respectively) than are expected for low-density clouds within the Local Bubble. In the case of the narrow α Pav component, we also find an anomalously large Na i/Ca ii column density ratio, which is indicative of a relatively high density. Thus it is possible that, in addition to LIC-type clouds, the local interstellar medium contains a population of previously undetected cooler and denser interstellar clouds

Precision voltage regulator

Balanced positive and negative voltage output circuit, in which error voltage for control is developed from difference in absolute value of positive and negative voltages referenced to a common point, regulates voltage for use with inertial reference unit. Fast-acting, temperature-compensated, high-gain operational amplifier circuits maintain common point