Cavitation
Mostrando 1-12 de 144 artigos, teses e dissertações.
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1. Case for diagnosis. Cutaneous small vessel vasculitis (anti-proteinase 3 positive), fever, hemoptysis, and lung cavitation in an adult,
Abstract Small vessel vasculitis with anti-proteinase antibodies 3 is an atypical clinical presentation of tuberculosis. The authors present the case of a 47-year-old male patient, with palpable purpura and palmoplantar hemorrhagic blisters, with subsequent dissemination. He presented severe pulmonary symptoms with cavitation, fever, hemoptysis, and high lev
An. Bras. Dermatol.. Publicado em: 2021-03
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2. Scurvy: hard to remember, easy to diagnose and treat,
Abstract Small vessel vasculitis with anti-proteinase antibodies 3 is an atypical clinical presentation of tuberculosis. The authors present the case of a 47-year-old male patient, with palpable purpura and palmoplantar hemorrhagic blisters, with subsequent dissemination. He presented severe pulmonary symptoms with cavitation, fever, hemoptysis, and high lev
An. Bras. Dermatol.. Publicado em: 2021-03
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3. Association between pemphigus and systemic lupus erythematosus: a systematic review and meta-analysis,
Abstract Small vessel vasculitis with anti-proteinase antibodies 3 is an atypical clinical presentation of tuberculosis. The authors present the case of a 47-year-old male patient, with palpable purpura and palmoplantar hemorrhagic blisters, with subsequent dissemination. He presented severe pulmonary symptoms with cavitation, fever, hemoptysis, and high lev
An. Bras. Dermatol.. Publicado em: 2021-03
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4. Improved Functionalization of Multiwalled Carbon Nanotubes in Ultra-Low Acid Volume: Effect of Solid/Liquid Interface
A comprehensive study of a less harmful functionalization of multiwalled carbon nanotubes (MWCNT) was performed. The influence of ultrasonic cavitation and solid/liquid interface was indirectly evaluated by statistical characterization of MWCNT aspect ratio and degree of functionalization. MWCNT aspect ratio was determined through hundreds of electron micros
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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5. Corrosion-cavitation-erosion: surface morphology study of a carbon steel in a multiphasic saline bath
ABSTRACT During the production of petroleum and gas, the equipments employed for this activity are subjected to synergetic wear mechanisms, such as corrosion, corrosion-cavitation and corrosion-cavitation-erosion. Laboratory experiments has been performed to reproduce some of these mechanisms, however, sometimes the tests is not capable to recreate the compl
Matéria (Rio J.). Publicado em: 20/05/2019
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6. Radiological aspects in computed tomography as determinants in the diagnosis of pulmonary tuberculosis in immunocompetent infants
Resumo Objetivo: Descrever achados radiológicos na tomografia computadorizada (TC) de tórax de crianças imunocompetentes menores de 36 meses com tuberculose pulmonar. Materiais e Métodos: Esta série de casos foi desenvolvida na cidade do Rio de Janeiro, no período de janeiro de 2004 a julho de 2013, onde 20 pacientes foram submetidos a TC após a rea
Radiol Bras. Publicado em: 21/03/2019
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7. COD removal from sucrose solution using hydrodynamic cavitation and hydrogen peroxide: a comparison between Venturi device and orifice plate
RESUMO O objetivo deste estudo foi comparar a eficiência de remoção de DQO de um Venturi e de uma placa de orifício. Adicionalmente, a otimização da pressão de entrada dos dispositivos, o estudo da cinética da degradação, e o efeito sinérgico resultante da combinação da cavitação e H2O2 foram realizados. Um aparato experimental em escala labo
RBRH. Publicado em: 28/02/2019
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8. Physical methods for topical skin drug delivery: concepts and applications
Topical drug delivery is an interesting approach to treat skin diseases and to avoid pain and low patient compliance in cases where a systemic delivery is required. However, the stratum corneum, which is the outermost skin layer, strongly protects the body from the entrance of substances, especially those hydrophilic. In this context, different physical meth
Braz. J. Pharm. Sci.. Publicado em: 08/11/2018
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9. The Effectiveness of Back Pressure in Superplastic Blow Forming of Aluminum Alloy AA 5083 Performed at Very Favorable Conditions for Cavitation Growth
Many components for aerospace and automotive industries are currently manufactured using superplastic forming, being the fine-grained aluminum alloy AA5083 widely used for this proposes. However, the development of cavitation voids is inherent in this process and reduces the ductility of the alloy. Back pressure can be used to diminish the growth of cavitati
Mat. Res.. Publicado em: 26/07/2018
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10. Microstructure and Mechanical Properties of ASTM A743 CA6NM Steel Welded by FCAW Process
CA6NM steel is widely used in the manufacture of hydraulic turbines metallic parts, due to its resistance to corrosion and cavitation damage, combined with good weldability and fatigue properties. However, welding of this type of steel is complex and to ensure a minimum residual stress after welding it is necessary perform a post welding heat treatment (PWHT
Mat. Res.. Publicado em: 21/09/2017
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11. Multiple uses of fibrin sealant for nervous system treatment following injury and disease
Abstract Lesions to the nervous system often produce hemorrhage and tissue loss that are difficult, if not impossible, to repair. Therefore, scar formation, inflammation and cavitation take place, expanding the lesion epicenter. This significantly worsens the patient conditions and impairment, increasing neuronal loss and glial reaction, which in turn furthe
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 27/04/2017
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12. Determination of acoustic fields in acidic suspensions of peanut shell during pretreatment with high-intensity ultrasound
Abstract The benefits of high-intensity ultrasound in diverse processes have stimulated many studies based on biomass pretreatment. In order to improve processes involving ultrasound, a calorimetric method has been widely used to measure the real power absorbed by the material as well as the cavitation effects. Peanut shells, a byproduct of peanut processing
Braz. J. Chem. Eng.. Publicado em: 2017-04