This paper describes the results of a study to find possible Near Earth Asteroids (NEA) capable being captured using upcoming rocketry for purposes space-based mining, combining reusable rockets such as SpaceX's Big Falcon Rocket (i.e. BFR) and refueling capabilities. work introduces relatively low-cost option with higher Delta V, <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\triangle V$</tex> , compared non-reusable rockets, an opportunity...

Combination of real-world object and computergenerated know as Augmented Reality (AR) is considered media the future. In AR computer-generated a result three-dimensional graphics rendering. An software designed to provide real-time interactivity with user in forms video. this paper we implement technology simulate eyeglasses frame model simulation so can try many models see how they look without actually have eyeglasses. After activating software, users webcam's range will be processed...

Augmented Reality (AR) is a combination between computer-generated object and real-world object. Computer-generated result of three-dimensional graphics. AR software designed to provide real-time interactivity with the user. The implementation in this paper developing spectacle frame model simulation face tracking pose estimation algorithm. This will have lot benefits, since user are able try various models frames, anytime, anywhere, lead into effective technology implementation. speed...

Certain bat species (horseshoe bats, Rhinolophidae) can navigate, avoid obstacles, and pursue prey in dense vegetation with exceptionally capable efficient biosonar systems that operate complete darkness process echoes brain masses as low 0.2 g. Hence, they provide an opportunity to develop a novel integrated sensor system enable autonomous navigation capabilities small drones operating complex natural environments. To explore this, we have investigated the of Horseshoe bats from...

This paper presents a parametric video prediction scheme with backprop-based motion estimation, in response to the CLIC challenge on P-frame compression. Recognizing that most learning-based codecs rely optical flow-based temporal and suffer from having signal large amount of information, we propose perform overlapped block compensation sparse field. In forming this field, conduct steepest descent algorithm loss function for identifying critical pixels, which vectors are communicated...

Abstract Deep convection from monsoons has been shown to be a major tropospheric source of gravity waves (GWs) in the summer hemisphere. These GWs can propagate up upper mesosphere, either vertically (over same latitude) or obliquely (latitudinal propagation away their source), where they dissipate and release momentum. play an important role global dynamical structure middle atmosphere. Understanding hemispheric seasonal variations could improve GW parameterization schemes present models....

Abstract Oblique propagation of gravity waves (GWs) refers to the latitudinal (or vertical away from their source) low‐latitude troposphere polar mesosphere. This is not included in current wave parameterization schemes, but may be an important component global dynamical structure. Previous studies have revealed a high correlation between observations GW pseudomomentum flux (GWMF) monsoon convection and Polar Mesospheric Clouds (PMCs) northern hemisphere. In this work, we report on data...

Bats and toothed whales (odontocetes) have both independently evolved sophisticated biosonar systems. This raises the question how similar functional principles of these systems are. Could, for example, insights gained from bats be assumed to hold odontocetes or vice versa? Could lumped together as a single source inspiration novel engineering approaches sonar sensing? Similarities differences between are likely depend on respective acoustic environments in which well evolutionary starting...

Biosonar echoes received by bats in their natural habitats are short, highly time-variant acoustic waveforms. Because of these signals properties, the way which bats' auditory nerve represents could be a model for how sparse neural time-code can capture salient signal features. Here, spike-encoding has been studied based on large data set containing about 220 00 that were collected hand-carrying biomimetic robotic sonar head through forest environments. The was equipped with flexible...

Many bat species, such as horseshoe bats, move their external auditory periphery (noseleaf and pinnae) during emission/reception of biosonar signals. This peripheral dynamics has already been shown to enhance sensory information encoding at the level analog echo waveforms. However, bats' brains do not process any waveforms directly but rely on spike codes generated in nerve instead. Hence, it is desirable evaluate effect these codes. As input for this analysis, natural foliage echoes akin...

Current models of the initial stages auditory processing in mammals usually agree that input signals are split into a bank bandpass filters. However, available differ substantially their level complexity and number parameters needed. In current work, varying levels filterbank basilar membrane have been evaluated context modeling cochlear natural biosonar echoes horseshoe bats. To this end, three different types implemented to represent range spanned by use for human inner ear: The simplest...

The sophisticated biosonar systems of horseshoe bats have enabled these animals to navigate and pursue prey in complex environments. A conspicuous peripheral dynamics which the animals' noseleaves pinnae change during behaviors could play an important role enabling capabilities. It may be hypothesized that for integration between neural signal processing/estimation maximally effective, periphery should controlled by feedback from output subsequent echo processing. In way, specifics sensory...

Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Journal of Geophysical Research - Atmospheres. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Influence Obliquely Propagating Monsoon Gravity Waves on Southern Polar Summer Mesosphere after Stratospheric Sudden Warmings in Winter...