134,130 research outputs found
Sex Offenses: The British Experience
Swedish architectural modernism is intimately tied to thedevelopment of the welfare state, where the roles and work ofarchitects largely followed governmental building policies. Thepolitical and economical crisis of the late 1960s and 1970swas particularly devastating for Swedish architecture as theshortcomings of the welfare state were partly blamed on thearchitecture profession. This paper is a study of the NationalBoard of Public Building (KBS)—a Governmental agencyin charge of providing office space for State institutions—and its ambition to rationalise its organisation and buildingconstruction. KBS’ developments during the late 1960sand early 1970s redefined the role of the architect throughquestioning the organisation of the building industry, theprocess of design, and the role of the State in building. In1967, a larger reorganisation of KBS was prompted by theGovernment’s implementation of a new budgeting systemcalled program budgeting, which besides being a financialsteering mechanism also served as a planning system inwhich the strict cost-effectiveness of the agencies programswere measured. KBS’s response to the enforced changesresulted in the launching of an official architectural theory in1968, the so-called “KBS structure philosophy,” that at largewas a pragmatic structuralist approach to building. It wasdeveloped through rigorous investigations during the 1960s andsubsequently realized, in assimilation with program budgeting,with great force and conviction. The analysis suggests thatKBS, and its consultant architects, responded to the State’sdemand to rationalize the process of building which in turn ledto significant changes of the role of the architect, and furtherrestrained architecture’s dependency on rational means-endsdecision-making, favouring economic perspectives of building.QC 20140617</p
Theory of Feshbach molecule formation in a dilute gas during a magnetic field ramp
Starting with coupled atom-molecule Boltzmann equations, we develop a
simplified model to understand molecule formation observed in recent
experiments. Our theory predicts several key features: (1) the effective
adiabatic rate constant is proportional to density; (2) in an adiabatic ramp,
the dependence of molecular fraction on magnetic field resembles an error
function whose width and centroid are related to the temperature; (3) the
molecular production efficiency is a universal function of the initial phase
space density, the specific form of which we derive for a classical gas. Our
predictions show qualitative agreement with the data from [Hodby et al, Phys.
Rev. Lett. {\bf{94}}, 120402 (2005)] without the use of adjustable parameters
Sources of sound in fluid flows
Some features of a flow that produce acoustic radiation, particularly when the flow is turbulent and interacting with solid surfaces such as turbine or compressor blades are discussed. Early theoretical ideas on the subject are reviewed and are shown to be inadequate at high Mach number. Some recent theoretical developments that form the basis of a description of sound generation by supersonic flows interacting with surfaces are described. At high frequencies the problem is treated as one of describing the surface-induced diffraction field of adjacent aerodynamic quadrupole sources. This approach has given rise to distinctly new features of the problem that seem to have bearing on the radiating properties of relatively large aerodynamic surfaces
A study of reactive plasma deposited thin films
A state-of-the-art research laboratory was established to grow and characterize amorphous thin films that are useful in semi-conductor devices. Two film systems, nitride films and silicon dioxide films were studied. Over seventy deposition runs for nitride films were made. The films were deposited on silicon substrate using plasma enhanced chemical vapor deposition. It was found that the uniformity of the films were affected by the location of the film on the platen
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