Separation Vessel
Mostrando 1-12 de 15 artigos, teses e dissertações.
-
1. Estudos em adsorÃÃo de gÃs natural: armazenamento, transporte e purificaÃÃo / Studies of Natural Gas Adsorption: Storage, Transport and Purification
The use of vessels filled with activated carbon to store and transport natural gas (NG) at moderate pressures (about 3.5 MPa) and ambient temperature (about 298 K) has been studied as a potential alternative to compressed natural gas storage at high pressures (ca. 20 MPa). The present study provides an experimental investigation of charge and discharge cycle
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
-
2. DETERMINAÇÃO DE ELEMENTOS TRAÇO EM SOLO POR ICP-MS APÓS VOLATILIZAÇÃO EMPREGANDO COMBUSTÃO INICIADA POR MICRO-ONDAS
In this work the microwave-induced combustion (MIC) method was proposed for the decomposition of soil samples and subsequent determination of As, Bi, Cd, Hg, Pb and Se by inductively coupled plasma mass spectrometry (ICP-MS). Soil samples (up to 300 mg) were mixed with microcrystalline cellulose (300 or 500 mg), homogenized and pressed as pellets. Pellets we
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
3. Projeto de um sistema emulador de escoamentos e vaso de separação primária
A proposta desse trabalho foi desenvolver uma planta-piloto com o objetivo principal de emular picos de pressão de escoamentos num vaso de separação. Efeito semelhante ao provocado pela produção em forma de golfadas em poços de produção equipados com o método de elevação artificial plunger lift. A motivação para o desenvolvimento do mesmo foi a
Publicado em: 2009
-
4. Determinação de Sb (V) em medicamentos antileishmanioticos por extração liquido-liquido em sistema automatizado de analise em fluxo
In this work a selective method for the Sb (V) determination in antileishmaniotics drugs is proposed, based on the extraction of an ion pair formed between hexachloroantimoniate anion and the rhodamine a cation in an automated liquid-liquid extraction flow analysis system (LLE-FA). The ion-pair was formed in hydrochloride acid and as solvent toluene was empl
Publicado em: 2003
-
5. Regulation of lymphatic-blood vessel separation by endothelial Rac1
Sprouting angiogenesis and lymphatic-blood vessel segregation both involve the migration of endothelial cells, but the precise migratory molecules that govern the decision of blood vascular endothelial cells to segregate into lymphatic vasculature are unknown. Here, we deleted endothelial Rac1 in mice (Tie1-Cre+;Rac1fl/fl) and revealed, unexpectedly, that wh
Company of Biologists.
-
6. Three-dimensional Electrocardiographically Gated Variable Flip Angle FSE Imaging for MR Angiography of the Hands at 3.0 T: Initial Experience1
Three-dimensional electrocardiographically gated unenhanced variable flip angle MR angiography of the hands enables clear separation of veins from arteries, with high in-plane resolution and excellent small vessel conspicuity.
Radiological Society of North America.
-
7. Effect of compliance and hematocrit on wall shear stress in a model of the entire coronary arterial tree
A hemodynamic analysis is implemented in the entire coronary arterial tree of diastolically arrested, vasodilated pig heart that takes into account vessel compliance and blood viscosity in each vessel of a large-scale simulation involving millions of vessels. The feed hematocrit (Hct) is varied at the inlet of the coronary arterial tree, and the Fahraeus-Lin
American Physiological Society.
-
8. Production of Photons in the Bactericidal Effect of Transient Electric Arcs in Aqueous Systems
The radiation in the visible and ultraviolet regions from submerged, transient electrical arcs was measured with a K3Fe(C2O4)3 chemical actinometer and was compared to the bactericidal effect obtained with the same electrical arrangements. Photon production and bactericidal effect were obtained at lower voltages with a smaller electrode separation than with
-
9. Combined posterior contusion and penetrating injury in the pig eye. II. Histological features.
The main histological features observed after an experimental posterior contusion injury in the pig eye were haemorrhage from the choroidal vessels into the subretinal space and into the vitreous, uveal vessel dilatation, and an inflammatory reaction. These changes resolved during the first 2 weeks, and the subretinal haemorrhage was replaced by a fibrocellu
-
10. Histopathology of the ductus arteriosus after prostaglandin E1 administration in ductus dependent cardiac anomalies.
The histology of the ductus arteriosus was studied after prostaglandin E1 (PGE1) administration in 4 infants with ductus dependent cardiac malformations. Pronounced pathological changes were found in each instance. The changes consisted of oedema of the media with separation of medial components by clear spaces, pathological interruptions of the internal ela
-
11. Lack of collagen XVIII/endostatin results in eye abnormalities
Mice lacking collagen XVIII and its proteolytically derived product endostatin show delayed regression of blood vessels in the vitreous along the surface of the retina after birth and lack of or abnormal outgrowth of retinal vessels. This suggests that collagen XVIII/endostatin is critical for normal blood vessel formation in the eye. All basement membrane
Oxford University Press.
-
12. Intravascular flow decreases erythrocyte consumption of nitric oxide
Nitric oxide (NO) produced by the endothelium diffuses both into the lumen and to the smooth muscle cells according to the concentration gradient in each direction. The extremely high reaction rate between NO and hemoglobin (Hb), kHb= 3–5 × 107 M−1⋅s−1, suggests that most of the NO produced would be consumed by Hb in the red blood cells (RBCs), whic
The National Academy of Sciences.