Rise Of The Bubble
Mostrando 1-7 de 7 artigos, teses e dissertações.
-
1. Dissolved Air Flotation for Fiber Removal from Clear Water
ABSTRACT We investigated the use of dissolved air flotation (DAF) to treat clear water effluent from the paper industry in order to remove fibers. The dosage of polyaluminium chloride (PAC) was varied in the following concentrations: 0, 75, 100, 125, 150 and 175 mg/L; as well as bubble rise velocity of 18 and 9 cm/min for two types of paper wastewater: print
Floresta Ambient.. Publicado em: 08/02/2018
-
2. Modelagem matemática e simulação numérica do transporte de metano em reservatórios de hidrelétricas / Mathematical modeling and numerical simulation of the methane transport in hydroelectric reservoirs
É notório que a degradação ambiental vem ao longo do tempo posicionando-se como um dos principais problemas do mundo moderno. Dentre as várias questões do interesse ambiental podemos destacar a ascensão da bolha de metano, em reservatórios hidrelétricos, desde o sedimento anóxico no fundo do reservatório até a interface água atmosfera. Neste con
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/09/2012
-
3. Experimentação física do escoamento gás-líquido em uma coluna de bolhas retangular utilizando a técnica PIV e a técnica de sombras SHADOW / Gas- liquid experimentation in a rectangular bubble column using PIV and Shadow techniques
Bubble columns are multiphase contact devices for mass and heat transfer, wich are intensively used in different industrial areas. Flow and turbulence in these equipments are induced by the bubble rise motion. The hydrodynamics and bubble behavior in a homogeneous bubbly flow regime was analyzed in a rectangular laboratory-scale bubble column (50 x 20 x 220
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/07/2012
-
4. DESCRIPTION OF THE MOTION OF DEFORMABLE PARTICLES RISING IN PURIFIED WATER, BASED ON EXPERIMENTS / DESCRIÇÃO DO MOVIMENTO DE PARTÍCULAS DEFORMÁVEIS SUBINDO EM ÁGUA PURIFICADA, BASEADA EM ESTUDO EXPERIMENTAL
The present work studies the behavior of Newtonian fluid drops of density less than one, rising in purified water in laminar regime, Internal Reynolds number varies from 1 to 1200 and equivalent diameter of drops from 2 to 10mm. The smaller ones are spherics and the larger ones oblated spheroids on their superior part. Pulsation of great drops hás been obse
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/04/1970
-
5. The mismatched nucleotides in the 5'-terminal hairpin of minute virus of mice are required for efficient viral DNA replication.
The 5'-terminal sequence in the DNA of the parvovirus minute virus of mice (MVM) is a palindrome. It can form a hairpin, the stem of which is entirely base-paired except for three consecutive unpaired nucleotides which form a bubble. Since this structure is well conserved among different parvoviruses, we examined its importance for viral replication by gener
-
6. Water-to-Air Transfer and Enrichment of Bacteria in Drops from Bursting Bubbles
An electrostatic induction technique was used to determine both drop size distribution and concentration of bacteria in the film drops produced by bubbles bursting at the surface of a suspension of Serratia marcescens. Film drops are produced from the collapse of the thin film of water that just before bursting separates the air in the bubble from the atmosp
-
7. Necrosis and apoptosis associated with distinct Ca2+ response patterns in target cells attacked by human natural killer cells.
1. During the process of cell death, rises in cytosolic Ca2+ concentration ([Ca2+]i) together with structural changes were investigated in target cells attacked by purified CD3-,CD16+ human natural killer (NK) cells. 2. In the target cell line K562, a rapid [Ca2+]i rise to 1-2 microM occurred a few minutes after NK cell-target cell contact, immediately follo