IEEE Comput Graph Appl
February 2021
Search tasks in production environments have been shown to be significantly improved by attention guiding techniques in augmented reality (AR). In mobile use cases, head-mounted displays support context-sensitive and flexible search tasks. To improve search time and navigation efficiency, first concepts like attention funnel and spherical wave based guidance techniques have been tested successfully in comparison to simple arrow navigation.
View Article and Find Full Text PDFThe miniaturization and integration of frequency-agile microwave circuits--relevant to electronically tunable filters, antennas, resonators and phase shifters--with microelectronics offers tantalizing device possibilities, yet requires thin films whose dielectric constant at gigahertz frequencies can be tuned by applying a quasi-static electric field. Appropriate systems such as BaxSr1-xTiO3 have a paraelectric-ferroelectric transition just below ambient temperature, providing high tunability. Unfortunately, such films suffer significant losses arising from defects.
View Article and Find Full Text PDFLightly embalmed hemorrhagic cadaver models and the Storz CMAC videolaryngoscope fitted with either an integrated suction blade vs. a traditional blade were used to determine efficacy of the instruments in hemorrhagic airway intubation. Significant differences were found between the devices in intubation success rates of the viscosity saliva and frothy blood models, as well as a significant difference in intubation times in the frothy blood model.
View Article and Find Full Text PDFAirway management skills are essential for healthcare providers within military and civilian settings. To maintain competency in these skills, it is crucial for the provider to have opportunities for review and retraining. Virtual airway training or telementoring can be an effective means to fulfilling these requirements for healthcare providers located in remote sites.
View Article and Find Full Text PDFA new orthorhombic phase of the multiferroic BiFeO3 has been created via strain engineering by growing it on a NdScO(3)(110)(o) substrate. The tensile-strained orthorhombic BiFeO3 phase is ferroelectric and antiferromagnetic at room temperature. A combination of nonlinear optical second harmonic generation and piezoresponse force microscopy revealed that the ferroelectric polarization in the orthorhombic phase is along the in-plane {110}(pc) directions.
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