scholarly journals A Practical Route Reconstruction Method for Wi-Fi Mesh Networks In Disaster Situation with Spare AP

2019 ◽  
Author(s):  
Erdenetuya Dorj ◽  
Jovilyn Therese B. Fajardo ◽  
Kazuhiko Kinoshita
Keyword(s):  
Mesh Networks ◽  
Reconstruction Method ◽  
Disaster Situation ◽  
Route Reconstruction

scholarly journals Rainfall eld reconstruction using rain attenuation of microwave mesh networks

1970 ◽  
Vol 7 (2) ◽  
pp. 117-125
Author(s):  
Gemalyn Dacillo Abrajano ◽  
Minoru Okada
Keyword(s):  
Compressed Sensing ◽  
Weather Forecasting ◽  
Mesh Networks ◽  
Detection System ◽  
Rain Attenuation ◽  
Detection Accuracy ◽  
Reconstruction Method ◽  
Weather Patterns ◽  
Communication Links ◽  
Rain Events

Rainfall detection using commercial communication links can complement the existing weather satellite and radar system. Using the rain attenuation data from these networks, the paper proposes a new method of reconstructing the rainfall field through a compressed-sensing based algorithm. Compressed sensing is a new algorithm that can reconstruct a sparse signal from a relatively small number of measurements. System configurations of two links and three links crossing a single area are studied and the detection accuracies for rain location and attenuation level are evaluated. The proposed method is also tested for different climate and weather patterns. The results show that the proposed method has good location detection accuracy, and the rain intensity was reconstructed as well. The proposed detection system and reconstruction method can greatly benefit the tropical countries that experience frequent rains but do not have enough resources for weather forecasting and detection of possible disaster-inducing rain events.

Three-dimensional reconstruction of the 40S ribosomal subunit from rabbit reticulocytes

1987 ◽  
Vol 45 ◽  
pp. 936-937
Author(s):  
Neng-Yu Zhang ◽  
Terence Wagenknecht ◽  
Michael Radermacher ◽  
Tom Obrig ◽  
Joachim Frank
Keyword(s):  
Three Dimensional ◽  
Ribosomal Subunit ◽  
Uranyl Acetate ◽  
Reconstruction Method ◽  
Single Exposure ◽  
Electron Dose ◽  
Ribosomal Subunits ◽  
40S Ribosomal Subunit ◽  
Dimensional Reconstruction ◽  
Rabbit Reticulocytes

We have reconstructed the 40S ribosomal subunit at a resolution of 4 nm using the single-exposure pseudo-conical reconstruction method of Radermacher et al.Small (40S) ribosomal subunits were Isolated from rabbit reticulocytes, applied to grids and negatively stained (0.5% uranyl acetate) in a manner that “sandwiches” the specimen between two layers of carbon. Regions of the grid exhibiting uniform and thick staining were identified and photographed twice (magnification 49,000X). The first micrograph was always taken with the specimen tilted by 50° and the second was of the Identical area untilted (Fig. 1). For each of the micrographs the specimen was subjected to an electron dose of 2000-3000 el/nm2.Three hundred thirty particles appearing in the L view (defined in [4]) were selected from both tilted- and untilted-specimen micrographs. The untilted particles were aligned and their rotational alignment produced the azimuthal angles of the tilted particles in the conical tilt series.

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