Double-aluminized kapton (DAK) is commonly used in multi-layer insulation blankets in cryogenic systems. NASA plans to use individual DAK sheets in lightweight deployable shields for satellites carrying instruments. A set of these shields will reflect away thermal radiation from the sun, the earth, and the instrument's warm side and allow the instrument's cold side to radiate its own heat to de...

In order to reduce network traffic in distributed virtual environment, combined LOD techniques with active interest management based on layered interest management, a layered filtering method based on multi-resolution geometric model is proposed in this paper. This method constructs multi-resolution geometric model using dynamic model simplification algorithm, then creates the mapping from matc...

introduction the purpose of this study was to evaluate personal shields in radiation departments of hospitals affiliated to mashhad university of medical sciences. materials and methods first, the information related to 109 personal shields was recorded and evaluated by imaging equipment. afterwards, the equivalent lead thickness (elt) of 62 personal shields was assessed, using dosimeter and st...

With the development of social network, people start to pay attention to its internal information diffusion and propagation process. However, most state-of-the-art works mainly analyzed single-phased and single-layered network. In our project, we study the information spread on multilayered network. We focus on one specific event the information of the discovery of a new particle spreading in T...

In this paper, we explore the computational potential and limitations of the multi-layered con-nectionist models [Minsky and Papert, 1968]. We found that the number of layers and the width are two crucial parameters for the multi-layered connectionist models. If each layer has the same size n and we increment the number of layers by 1, then the number of problems solved will increase 0{n 3) tim...

BACKGROUND Biological system is a multi-layered structure of omics with genome, epigenome, transcriptome, metabolome, proteome, etc., and can be further stretched to clinical/medical layers such as diseasome, drugs, and symptoms. One advantage of omics is that we can figure out an unknown component or its trait by inferring from known omics components. The component can be inferred by the ones ...

Introduction The purpose of this study was to evaluate personal shields in radiation departments of hospitals affiliated to Mashhad University of Medical Sciences. Materials and Methods First, the information related to 109 personal shields was recorded and evaluated by imaging equipment. Afterwards, the equivalent lead thickness (ELT) of 62 personal shields was assessed, using dosimeter and st...

We study vibrations of singleand multi-layered rectangular graphene nanoribbons (GNRs) using molecular mechanics (MM) simulations by employing the MM3 potential. Two sets of boundary conditions are considered, namely, clamping atoms on either all four edges (CCCC) or on the two small edges (CFCF). Furthermore, we consider two scenarios for a single-layered GNR – one in which an interior atom is...

Layered dielectric media is encountered in many electromagnetic problems such as analysis of multi-layered substrate/superstrate microwave circuits and printed antennas as well as modeling the terrain with a dielectric stratified medium. In this section a procedure for evaluating the dyadic Green’s function for a multi-layered (with planar interfaces) medium with arbitrary positions of the sour...