Results 31 to 40 of about 1,169,905 (342)

Mass hysteria among South African primary school learners in Kwa-Dukuza, KwaZulu-Natal

South African Family Practice, 2010
During August 2002, at a primary school in Kwa-Dukuza, KwaZulu-Natal, 27 children who had been well when they left their homes collapsed at school, displaying tremors and shivers throughout their bodies. Many of the children also presented with abdominal
Indiran Govender
doaj   +1 more source

Tracking Vector Magnetograms with the Magnetic Induction Equation [PDF]

, 2008
The differential affine velocity estimator (DAVE) developed in Schuck (2006) for estimating velocities from line-of-sight magnetograms is modified to directly incorporate horizontal magnetic fields to produce a differential affine velocity estimator for ...
Fieller E. C., Hildreth E. C., Joyner D., Marr D., P. W. Schuck, Santos J. C.   +5 more
core   +1 more source

Non-line-of-sight propagation in object localization: a survey

Gong-kuang zidonghua, 2020
Due to the existence of obstacles, none-line-of-sight(NLOS) propagation is common in localization scenes like mines, which causes refraction, reflection, diffraction and scattering of localization signals, leads to the increase of ranging error, and ...
HU Qingsong, ZHANG Henan, WANG Peng, YANG Wei, LI Shiyin   +4 more
doaj   +1 more source

Reliability Analysis of Centralized Radio Access Networks in Non-Line-of-Sight and Line-of-Sight Scenarios

IEEE Access, 2019
The fifth generation (5G) wireless network technology is set to be standardized by 2020, where the main goals are to improve capacity, reliability, and energy efficiency while reducing latency and massively increasing connection density.
Daniel Peethala, Thomas Kaiser, A. J. Han Vinck   +2 more
doaj   +1 more source

Mass along the Line of Sight to the Gravitational Lens B1608+656: Galaxy Groups and Implications for H_0 [PDF]

, 2005
We report the discovery of four groups of galaxies along the line of sight to the B1608+656 gravitational lens system. One group is at the redshift of the primary lensing galaxy (z = 0.631) and appears to have a low mass, with eight spectroscopically ...
Fassnacht, C. D., Gal, R. R., Lubin, L. M., McKean, J. P., Readhead, A. C. S., Squires, Gordon K.   +5 more
core   +2 more sources

ANALISIS DEFORMASI PERMUKAAN MENGGUNAKAN METODE DInSAR (Differential Interferometry Synthetic Aperture Radar) PADA STUDI KASUS GEMPABUMI LOMBOK PERIODE AGUSTUS 2018

JGE, 2020
Lombok is located on the boundary of active tectonic plates, this is what caused the Lombok Earthquake on August, 2018. DInSAR is a remote sensing technology that utilizes radar satellites to measure the amount of deformation on the surface of the ground
Muhammad Fikri Azhari, Karyanto Karyanto, Syamsurijal Rasimeng, Bagus Sapto Mulyanto   +3 more
doaj   +1 more source

Analysis of Line-of-Sight Angle Characteristics for Intercepting a Non-Maneuvering Target With Impact Angle Constraints

IEEE Access, 2023
With the widespread informationization in modern warfare, higher requirements are required for monitoring the high-value target’s movement state and the corresponding attack conditions.
Xin Sun, Hui Wang, Kaiyang Guo, Yuru Bin, Heting Wang, Keqing Guo   +5 more
doaj   +1 more source

Projection, Spatial Correlations, and Anisotropies in a Large and Complete Sample of Abell Clusters [PDF]

, 1999
An analysis of R >= 1 Abell clusters is presented for samples containing recent redshifts from the MX Northern Abell Cluster Survey. The newly obtained redshifts from the MX Survey as well as those from the ESO Nearby Abell Cluster Survey (ENACS) provide
Christopher J. Miller, Croft R. A. C., Dalton G. B., David J. Batuski, Efstathiou G., Jaaniste J., John M. Hill, Katgert P., Kurt A. Slinglend, Ling E. N., Lucey J. R., Lumsden S. L., Maddox S. J., Maddox S. J., Mazure A., Nichol R. C., Nichol R. C., Peacock J. A., Schombert J. M., Schuch N., Schuch N., Sutherland W., Vilenkin A., Zeldovich Ya.B.   +23 more
core   +2 more sources

Optimum Model for Tracking of Moving Objects

Pakistan Journal of Engineering & Technology, 2023
 In wireless communication, it is a challenge to find the accurate position of moving objects. The presented work proposes the GPS receiver to measure the position and velocity of moving objects.
Muzaffar Hussain, Lubna Farhi, Farhan Ur Rehman   +2 more
doaj   +1 more source

Lines of sight [PDF]

Social Identities, 2018
This special issue of Social Identities originated in a workshop, held in Sydney in 2016, as part of the research project, Old Atrocities, New Media.
openaire   +1 more source