When a navigator's internal sense of direction is disrupted, she must rely on external cues to regain her bearings, a process termed spatial reorientation. Extensive research has demonstrated that the geometric shape of the environment exerts powerful control over reorientation behavior, but the neural and cognitive mechanisms underlying this phenomenon are not well understood. Whereas some the...

The rep rate of an inertial fusion energy facility depends on the time-dependent response of the chamber environment between target ignitions. The fusion burn following the target ignition releases large quantities of energy into the chamber. This energy should be removed and the environment should be returned to a quiescent state so that the new fusion target can be positioned for the next cyc...

Accurate simulation of the VAPEX process relies heavily on precise modeling solvent chamber propagation. In previously developed models, possesses either a linear, circular, or parabolic shape. this study, an exponential model was considered to represent propagation throughout spreading and falling stages process. The tuning parameters proposed include function coefficient transition region thi...

in this study, a general theoretical model to foresee and calculate the current-voltagecharacteristics in a plateau zone and the associated efficiency of the neutron detector (sensitivity) is presented. this study is to complete the previous studies in this field. the model also considers electric field distortion resulting from the charge collection effect. the characteristics curve is obtaine...

BACKGROUND Normalization of diastolic properties after left ventricular (LV) assist may result from a change in myocardial material properties, chamber size, or both. This study tested the hypothesis that reported normalization of LV diastolic properties is primarily due to remodeling of chamber geometry. METHODS AND RESULTS Hearts were obtained at transplantation from 8 patients with dilated...

We investigate the problem of estimating magma chamber geometry using InSAR observations of Sierra Negra volcano, Galápagos. Ascending and descending interferograms are combined to determine vertical and one horizontal component of displacement. The ratio of maximum horizontal to vertical displacement suggests a sill-like source. Spherical or stock-like bodies are inconsistent with the data. We...

The design of a new cloud condensation nucleus (CCN) spectrometer based on modifications to the original design of Fukuta and Saxena (1979a) is presented. The key modifications include introducing a trapezoidal geometry and orienting the chamber vertically. A series of simulations demonstrate the broadening of the effective range of the instrument to include supersaturations lower than those re...