We introduce the Semantic Depth of Field (SDOF) technique, which is an alternative focus+context method for information visualisation. SDOF blurs objects which are currently out of focus, i.e., not interesting for the user. In the experimental study described in this paper, we found that SDOF supports the preattentive perception of sharp targets and the numerical estimation of the amount of dat...

SDOF analysis is widely accepted for blast design, but many designers are not aware of the large database of available comparisons between results from SDOF analysis and blast test data. This paper collects a large amount of this data, excluding test data that is proprietary or restricted from public distribution, and presents comparisons of SDOF analysis results with test results for different...

We investigate the secure degrees of freedom (SDoF) of the K-user MIMO multiple access (MAC) and the two user MIMO interference channel. An unknown number of eavesdroppers are trying to decode the messages sent by the transmitters. Each eavesdropper is equipped with a number of antennas less than or equal to a known value NE . The legitimate transmitters and receivers are assumed to have global...

We study the problem of secure transmission over a Gaussian multi-input single-output (MISO) two receiver channel with an external eavesdropper, under the assumption that the state of the channel which is available to each receiver is conveyed either perfectly (P) or with delay (D) to the transmitter. Denoting by S1, S2, and S3 the channel state information at the transmitter (CSIT) of user 1, ...

Abstract—Finding the linear and nonlinear responses of a typical single-degree-of-freedom system (SDOF) is always being regarded as a time-consuming process. This study attempts to provide modifications in the renowned Newmark method in order to make it more time efficient than it used to be and make it more accurate by modifying the system in its own non-linear state. The efficacy of the prese...

We present a new technique called Semantic Depth of Field (SDOF) as an alternative approach to focus-andcontext displays of information. We utilize a well-known method from photography and cinematography (depth-offield effect) for information visualization, which is to blur different parts of the depicted scene in dependence of their relevance. Independent of their spatial locations, objects of...

One central task in information visualization and related fields (like volume and flow visualization) is displaying information in a context that makes it easier for users to understand. Blur is a visual cue that has been playing an important role in photography for over 150 years, but has been widely ignored in computer graphics. Sharp objects in photographs immediately attract the viewer’s ga...

We investigate the secure degrees of freedom (SDoF) of a two-transmitter Gaussian multiple access channel with multiple antennas at the transmitters, a legitimate receiver and an unknown number of eavesdroppers each with a number of antennas less than or equal to a known value NE . The channel matrices between the legitimate transmitters and the receiver are available everywhere, while the legi...

Cantilevered beams with piezoceramic (PZT) layers are the most commonly investigated type of vibration energy harvesters. A frequently used modeling approach is the single-degree-of-freedom (SDOF) modeling of the harvester beam as it allows simple expressions for the electrical outputs. In the literature, since the base excitation on the harvester beam is assumed to be harmonic, the well known ...