A ray optical methodology based on the uniform theory of diffraction (UTD) is proposed to model electromagnetic (EM) field scattering from curved metasurfaces (MSs). The problem addressed illumination a purely reflective cylindrical MS by line source, models surface with susceptibilities and employs previously used for cylinders coated in thin dielectric layers [Kim Wang (1989)]. approach funda...

Human action recognition is an active research area in computer vision. Although great progress has been made, previous methods mostly recognize actions from depth video sequences at only one scale, and thus they often neglect multi-scale spatial changes that provide additional information practical applications. In this paper, we present a novel framework with mechanism to improve scale divers...

Donor darah merupakan kegiatan penting untuk memperoleh sebagai bahan baku ke dalam rantai suplai darah. Jika di tubuh manusia tidak cukup maka kelangsungan hidup akan terancam, beberapa kondisi diperlukan tindakan melakukan transfusi darah, seperti kecelakaan, proses melahirkan atau demam berdarah pada grade tertentu. UTD PMI Kota Pekanbaru badan penyelenggara donor membantu dan melayani kebut...

The Southern Oklahoma Aulacogen (SOA) is a northwest-trending failed arm of a Cambrian triple junction. Significant structures along the SOA include the Wichita Uplift and the Anadarko Basin in southwest Oklahoma. The rift underwent a complex geologic history of bimodal volcanism, faulting, and subsidence before Pennsylvanian compression inverted and uplifted the structure as part of the format...

In this paper, we propose a novel graph based approach for 7 still-to-video based face recognition, in which the temporal and spatial 8 information of the face from each frame of the video is utilized. The spa9 tial information is incorporated using a graph based face representation. 10 The graphs contain information on the appearance and geometry of facial 11 feature points and are labeled usi...

Due to abundant spectral information contained in the hyperspectral images, they are suitable data for anomalous targets detection. The use of spatial features in addition to spectral ones can improve the anomaly detection performance. An anomaly detector, called nonparametric spectral-spatial detector (NSSD), is proposed in this work which utilizes the benefits of spatial features and local st...

Anomaly Detection (AD) has recently become an important application of target detection in hyperspectral images. The Reed-Xialoi (RX) is the most widely used AD algorithm that suffers from “small sample size” problem. The best solution for this problem is to use Dimensionality Reduction (DR) techniques as a pre-processing step for RX detector. Using this method not only improves the detection p...

Crystals of zeolites with intricate micropores have been widely used in industry as heterogeneous catalysts, in particular as solid acid catalysts in the fields of oil refining and petrochemistry. However, relatively small individual micropores in zeolites such as Beta, ZSM-5, and Y strongly influence mass transport to and from the active sites located within them, severely limiting the perform...