Brightness Temperature
Mostrando 1-12 de 47 artigos, teses e dissertações.
-
1. EVALUATION OF POLY(VINYL ALCOHOL) ADDITION EFFECT ON NANOFIBRILLATED CELLULOSE FILMS CHARACTERISTICS
ABSTRACT In this study, based on the mechanical shear treatment, the cellulosic pulp was fibrillated in nanofibrils dispersed in aqueous suspension. Nanofibrillated Cellulose (NFC) matrix - Polyvinyl Alcohol (PVA) nanocomposite films’ were prepared by casting from NFC/PVA suspension mixtures. The thermal and mechanical properties of the obtained films were
CERNE. Publicado em: 2020-03
-
2. Physicochemical, Thermal, Structural and Pasting Properties of Unconventional Starches from Ginger (Zingiber officinale) and White Yam (Dioscorea sp.)
Abstract Ginger and white yam starches were investigated and compared with maize starch. Proximal composition, thermogravimetry, differential scanning calorimetry, microscopy, colourimetry, X-ray powder diffractometry and pasting profile were analysed. The unconventional starches presented higher protein and ash contents than the maize starch, that had the h
Braz. arch. biol. technol.. Publicado em: 20/12/2019
-
3. Optimization of the blanching time and temperature in the manufacture of Hass avocado pulp using low quality discarded fruits
Resumo No Peru, aproximadamente 20% da produção de abacate var. Hass é descartada pelo baixo calibre, sendo vendida a preços baixos nos mercados locais. O propósito do trabalho foi otimizar o tempo e a temperatura de branqueamento para a produção de polpa de abacate, utilizando como matéria-prima frutos de descarte por baixo calibre. A otimização f
Braz. J. Food Technol.. Publicado em: 14/11/2019
-
4. Microwave Measurements of Dielectric Properties of Corn Vegetation at C-Band and Comparison with Debye- Cole Dual Dispersion Model
Abstract Microwave irradiations from vegetation canopy are strongly influenced by its dielectric properties and give useful information for microwave remote sensing -interpretation and applications. This paper reports on the laboratory measurements of dielectric properties of corn vegetation at C-Band frequency. Von Hipple method is used to measure complex d
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-12
-
5. Productive, Qualitative, and Physiological Aspects of Layer Hens Fed with Propolis
ABSTRACT Laying hens reared under tropical conditions are usually under heat stress. Propolis is known for its pharmaceutical properties, such as increasing cell tolerance to hyperthermia, because of its antioxidants effects. This study aimed at evaluating the influence of different dietary propolis inclusion levels on the performance, egg quality, and bird
Rev. Bras. Cienc. Avic.. Publicado em: 2015-12
-
6. Avaliação do processo SuperBatchTM para produção de polpa celulósica a partir de Bambusa vulgaris / Evaluation of SuperBatch(TM) process for the production of pulp from Bambusa vulgaris
The present study aimed to evaluate and compare the kraft pulping conventional processes and SuperBatchTM for Bambusa vulgaris aiming the production of pulp unbleached (kappa number 58 ± 2). The raw material was characterized with respect to basic density, chemical composition and morphology of fibers, was analyzed an aqueous pre-extraction temperatures of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2012
-
7. Métodosdesuperaçãodedormênciadesementesde Flamboyant / Methods of overcoming seed dormancy flamboyant
The Flamboyant (Delonix regia (Bojer ex Hook) Raf.) is an exotic ornamental species adapted to the conditions of the Brazilian territory, belonging to subfamily Caesalpinioideae and it has seeds with hard coat that promotes seed dormancy caused by the impermeability of seed coat to water and oxygen. The aim of this study was to test different types of mechan
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2012
-
8. Comparative analysis of mesoscale convective complexes using models simulations and satellite observations / Análise comparativa de complexos convectivos de mesoescala através de simulações de modelo e observações de satélite
In this study was analyzed the behavior of the Mesoscale Convective Complexes (MCC) that occurred in the South Central region of South America (40°S-15°S and 80°W e 30°W). The period chosen for the study of these systems was between September to March for the years 2007 and 2010. The FORTRAC tool was used to identify MCCs and found 43 systems. The period
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/2011
-
9. Estudo de ocorrência de bandas claras utilizando luminescência atmosférica da região F de baixas latitudes em função do ciclo solar / Study of brightness waves using f region airglow emissions at low latitudes during a solar cycle
O Máximo de Temperatura à Meia-noite (MTM) consiste no aumento da temperatura da alta atmosfera que ocorre no período noturno (próximo da meia-noite local) em baixas latitudes. Este fenômeno é acompanhado de um aumento da pressão responsável por reduzir ou mesmo reverter a velocidade de propagação dos ventos neutros meridionais, que normalmente sop
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
-
10. Monitoramento da zona superficial de neve úmida da Península Antártica pelo uso de dados dos sensores SMMR e SSM/I
Special Sensor Microwave-Imager (SSM/I) EASE-grid data and classified ASAR wideswath (WS) images, covering the Antarctic Peninsula (AP), were processed and used in a Spectral Linear Mixing Model (SLMM) for a subpixel analysis of the Wet Snow Zone (WSZ) in SSM/I images. The components¿ proportions (fraction images) of the endmembers in the study area, namely
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
11. A Concentração de sódio no testemunho de gelo da Ilha James Ross como indicador da variabilidade da extensão do gelo marinho
This dissertation investigates the relationship between the sodium concentration in an ice core (D98) from James Ross Island (Antarctica) and the area covered by sea ice in the Bellingshausen and Amundsen Seas during the 1979¿1991 period. The D98 total sodium content derives from samples analyzed by Joseph McConnell (McConnell et al., 2007). Sea ice coverag
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
-
12. The role of bound chlorine in the brightness reversion of bleached hardwood kraft pulp
Our previous paper showed fragmentary evidence that pulp brightness reversion may be negatively affected by its organically bound chlorine (OX) content. A thorough investigation on eucalyptus kraft pulp led to the conclusion that OX increases reversion of certain pulps but this trend is not universal. Alkaline bleaching stages decrease reversion regardless o
Química Nova. Publicado em: 2009