The construction industry is responsible for high energy consumption, carbon dioxide emissions, extraction of non-renewable materials, and large generation solid waste in the world. use prefabricated, industrialized, technological methods can reduce environmental impacts generated. Aiming to confirm its benefits, research proposal was analyze sustainability a residential project Light Steel Fra...

A busca por construções mais racionalizadas e sustentáveis como o sistema Light Steel Framing (LSF) vem crescendo mundialmente junto à necessidade de um melhor desempenho acústico do sistema, da mesma forma que aumenta a demanda pesquisas em materiais reciclados ou com baixo impacto ambiental. Assim, objetivo desta pesquisa é determinar coeficiente absorção sonora multicamadas formado lã PET pl...

In this paper, we examine the best domain to perform features interpolation in Distributed Speech Recognition (DSR) systems. We show that the only one domain where a performance gain can be achieved from the linear interpolation procedure is in the Line Spectral Frequencies (LSF) domain. A DSR scenario where the ITU-T G.723.1 codec is employed is also investigated. The recognition feature gener...

Light steel frame (LSF) building systems offer high structural resilience, lower costs due to fast prefabrication, and ability recycle reuse. The main goal of this paper was provide state-of-the-art components for such with the intention be implemented use in nearly-zero energy buildings (NZEBs). A brief historical outline development LSF given, key parameters affecting design were discussed. i...

Deployment of the COSTAR mirrors for GHRS has successfully cancelled the deleterious eeects resulting from spherical aberration of the HST primary mirror. Prior to COSTAR, the Large Science Aperture (LSA) line spread function (LSF) was characterized by a Gaussian core nearly twice as broad as that provided by the instrumental resolution limit with extended non-Gaussian wings. After COSTAR the L...

This paper presents a new distance measure that is based on the spectral sensitivity of the line spectrum frequency parameters (LSFs) and its Karhunen–Loeve (KL) transformed coefficients. It is shown that the proposed distance measure achieves better performance of vector quantization (VQ) compared to other methods in the field of LSF coding. In most cases, the percentage of outliers is reduced...

This paper presents a new lattice vector quantizer, namely lattice based shape-gain vector quantizer (LSGVQ), for line spectral frequencies (LSF) quantization. LSGVQ is developed in an attempt to reduce computation time for codebook search and memory requirement for saving codewords. Optimal design method and optimal encoding algorithm are provided for LSGVQ based on optimization of the squared...

Speech transmission over packet networks has to cope with packet delays and packet losses. When a packet loss occurs the missing information must be estimated. In this contribution we focus on restoring the spectral parameters of a speech coder. A novel approach to estimating missing Line Spectral Frequency (LSF) parameters using Gaussian Mixture Models (GMM) is proposed. We present the estimat...

In this paper, the multicast protection problem on elastic optical networks (EONs) for the single link-failure case is studied. The segment-based protection is used as the multicast protection scheme and two algorithms are proposed to solve this problem, they are Low Spectrum First Segmented Protection Algorithm (LSF-SPA) and K-Tree Segmented Protection Algorithm (KT-SPA). The proposed algorith...