Dragline comparisons

The presenting company provided data on the performance of a dragline over a four-week period during which four different buckets were used. The Study Group examined this data and suggested a method of analysing data from such comparative studies

Methods to recover the narrow Dicke sub-Doppler feature in evacuated wall-coated cells without restrictions on cell size

The hyperfine resonance observed in evacuated wall-coated cells with dimensions lambda/2 (lambda is the hyperfine resonance wavelength) consists of a narrow Dicke sub-Doppler linewidth feature, the spike, superimposed on a broad pedestal. The hydrogen maser provides a classic example of this lineshape. As cell size is increased, an effect unique to evacuated wall-coated cells occurs. Certain combinations of microwave field distribution and cell size result in a lineshape having a pedestal with a small spike feature or only the broad pedestal with no spike. Such conditions are not appropriate for atomic frequency standard applications. The cause of the evacuated wall-coated cell lineshape is reviewed and methods to recover the narrow spike feature without restrictions on cell size is discussed. One example is a cell with dimensions having equal volumes of exposure to opposite phases of the microwave magnetic field

Tiny sensor-transmitter can withstand extreme acceleration, gives digital output

A self-pulsing oscillator transmits a pulsed signal. The time between pulses and the frequency are controlled by two networks. Variations in the component values in each of the two networks, due to environmental changes, appear as changes in frequency and time between pulses in the transmitted signal. Such a sensor is used to measure physical magnitudes

Punishment in society: the improbable persistence of probation and other community sanctions and measures

This paper aims to explore and explain the key "adaptations" by which community sanctions have sought legitimacy in the wake of the decline of penal welfarism and of the rehabilitative ideal. It shows how community sanctions have survived and even thrived in these shifting social, cultural and penal currents despite various predictions of their demise. The four adaptations that we identify and discuss include, respectively, managerial, punitive, rehabilitative, and reparative aspects. We conclude trying to contribute our analysis of the future prospects for community sanctions and their legitimation.</p

Heat flux sensor design reduces extraneous source effects

Heat flux sensor isolates the sensor and its transmitting thermocouple from undesirable heat sources by incorporating a radiator section that forms a radiation shield between mounting cup and sensor. Bonding of the thermocouple cable to the underside of the radiator provides a conductive path to dissipate extraneous heat that might otherwise reach the sensor