Results 141 to 150 of about 301,173 (181)
Ultra-Wideband Ranging Error Mitigation with Novel Channel Impulse Response Feature Parameters and Two-Step Non-Line-of-Sight Identification. [PDF]
Sensors (Basel)Yang H +5 more
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Combinatorics, Probability and Computing, 2009
Random geometric graphs have been one of the fundamental models for reasoning about wireless networks: one places n points at random in a region of the plane (typically a square or circle), and then connects pairs of points by an edge if they are within a fixed distance of one another.
Frieze, Alan +3 more
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Random geometric graphs have been one of the fundamental models for reasoning about wireless networks: one places n points at random in a region of the plane (typically a square or circle), and then connects pairs of points by an edge if they are within a fixed distance of one another.
Frieze, Alan +3 more
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2011
In line-of-sight (LOS) radiocommunications, the main route is the direct path between the transmitter and receiver considering the curvature of radiowave trajectory. In Chap. 2, we discussed the general phenomena such as free-space loss (FSL) , gas and vapor loss, Fresnel radius, K-factor, and other mechanisms such as diffraction, reflection, and ...
Abdollah Ghasemi +2 more
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In line-of-sight (LOS) radiocommunications, the main route is the direct path between the transmitter and receiver considering the curvature of radiowave trajectory. In Chap. 2, we discussed the general phenomena such as free-space loss (FSL) , gas and vapor loss, Fresnel radius, K-factor, and other mechanisms such as diffraction, reflection, and ...
Abdollah Ghasemi +2 more
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Journal of Clinical Pediatric Dentistry, 2016
Objectives: It remains unclear how the realignments of the face and basicranium that characterize humans were acquired, both phylogenetically and ontogenetically. The developmentally constrained nature of the skull has been previously demonstrated in other primates using Donald H. Enlow's mammalian craniofacial architectural relationships.
Michala K, Stock +4 more
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Objectives: It remains unclear how the realignments of the face and basicranium that characterize humans were acquired, both phylogenetically and ontogenetically. The developmentally constrained nature of the skull has been previously demonstrated in other primates using Donald H. Enlow's mammalian craniofacial architectural relationships.
Michala K, Stock +4 more
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Ergonomics, 1986
Abstract Recent experiments with 16 male and 16 female subjects indicated that they like to look down rather steeply at an average of −29° below horizontal, s.d. 11·6°, when sitting with trunk and head upright. This angle is steeper when the visual target is at 0·50 m distance (−33°±11·3°) but flatter when the target is at 1·00 m (−24° ± 10·4°).
K H, Kroemer, S G, Hill
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Abstract Recent experiments with 16 male and 16 female subjects indicated that they like to look down rather steeply at an average of −29° below horizontal, s.d. 11·6°, when sitting with trunk and head upright. This angle is steeper when the visual target is at 0·50 m distance (−33°±11·3°) but flatter when the target is at 1·00 m (−24° ± 10·4°).
K H, Kroemer, S G, Hill
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2023
Perspective, color and rhythm are the basic elements I lend to create my abstract aesthetic form. I seek subject matter that is both of the aesthetic and of the world. Spontaneity is achieved through the collage technique I have adopted. This technique uses magazine color fields and textures out of context to create contemporary image fragments into ...
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Perspective, color and rhythm are the basic elements I lend to create my abstract aesthetic form. I seek subject matter that is both of the aesthetic and of the world. Spontaneity is achieved through the collage technique I have adopted. This technique uses magazine color fields and textures out of context to create contemporary image fragments into ...
openaire +1 more source
2009
The rock and coal, surrounding a coal mine tunnel, act as relatively low-loss dielectric media in the frequencies of range 200–4,000 MHz and dielectric constant of 5–10. Under these conditions a reasonable hypothesis is that the transmission takes the form of wave propagation, since the wavelength of ultra-high-frequency (UHF) waves are smaller than ...
L.K. Bandyopadhyay +2 more
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The rock and coal, surrounding a coal mine tunnel, act as relatively low-loss dielectric media in the frequencies of range 200–4,000 MHz and dielectric constant of 5–10. Under these conditions a reasonable hypothesis is that the transmission takes the form of wave propagation, since the wavelength of ultra-high-frequency (UHF) waves are smaller than ...
L.K. Bandyopadhyay +2 more
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A line-of-sight approach for non-line-of-sight imaging (Conference Presentation)
Computational Imaging IV, 2019Standard imaging systems, such as cameras, radars and lidars, are becoming a big part of our everyday life when it comes to detection, tracking and recognition of targets that are in the direct line-of-sight (LOS) of the imaging system. Challenges however start to arise when the objects are not in the system’s LOS, typically when an occluder is ...
Marco La Manna +4 more
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European Journal of Operational Research, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Mechademia, 2012
Hokusai is among the best-known names in Japanese art, and it may be thought that only a deficiency of imagination could lead to more writing on him. Many other artists of his period have been entirely neglected in the contemporary literature. But in fact, there is still more to be said, and this short essay will attempt to introduce some ideas that ...
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Hokusai is among the best-known names in Japanese art, and it may be thought that only a deficiency of imagination could lead to more writing on him. Many other artists of his period have been entirely neglected in the contemporary literature. But in fact, there is still more to be said, and this short essay will attempt to introduce some ideas that ...
openaire +1 more source