Transient Response
Mostrando 13-24 de 2077 artigos, teses e dissertações.
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13. On the Nonlinear Transient Analysis of Planar Steel Frames with Semi-Rigid Connections: From Fundamentals to Algorithms and Numerical Studies
Abstract This paper presents the fundamentals for prediction of a more realistic behavior of planar steel frames with semi-rigid connections under dynamic loading. The majority of the research in this area concentrates on the nonlinear static analysis of frames with semi-rigid connections. Indeed, few studies have contributed to the nonlinear dynamic and vi
Lat. Am. j. solids struct.. Publicado em: 03/05/2018
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14. Computational Modeling of Geoelectrical Soundings using PML-FDTD
Abstract The Finite-Difference Time-Domain (FDTD) method was applied in order to analyze the transient responses of geoelectrical soundings that use circular electric dipole (CED) as source over stratified formations. The model was developed in cylindrical coordinates and a perfectly matched layer (PML) was incorporated to the domain to absorb wave reflectio
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-03
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15. Dynamic Response of Dam-Reservoir Systems: Review and a Semi-Analytical Proposal
Abstract This paper presents a review of current techniques employed for dynamic analysis of concrete gravity dams under seismic action. Traditional procedures applied in design bureaus, such as the Pseudo-Static method, often neglect structural dynamic properties, as well as ground amplification effects. A practical alternative arises with the Pseudo-Dynami
Lat. Am. j. solids struct.. Publicado em: 2017-03
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16. Viscoelastic Substrates Effects on the Elimination or Reduction of the Sandwich Structures Oscillations Based on the Kelvin-Voigt Model
Abstract Effects of viscoelastic substrates on the sandwich structures oscillations are examined in this paper. In this regard, dynamic response of sandwich annular panels with FG polar orthotropic face sheets resting on viscoelastic substrate is presented. Young’s modulus in the radial and circumferential direction, shear modulus and density of each face
Lat. Am. j. solids struct.. Publicado em: 2017
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17. Correlation between the histopathology of chronic urticaria and its clinical picture
Abstract BACKGROUND: Chronic urticaria is characterized by transient, pruritic lesions of varying sizes, with central pallor and well-defined edges, with disease duration longer than six weeks. Its cellular infiltrate consists of neutrophils, lymphocytes and eosinophils. There is a subgroup of patients with eosinophilic or neutrophilic urticaria, resistant
An. Bras. Dermatol.. Publicado em: 2016-12
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18. Combined Cycle Performance Evaluation and Dynamic Response Simulation
ABSTRACT Power plants operating in combined cycle present higher thermal efficiency (over 60%) and increased power generation when compared to traditional simple cycles, such as gas or steam turbines operating alone. Considering that the power plant evaluated in this paper is already operational, a further development concerning to the power plant control sy
J. Aerosp. Technol. Manag.. Publicado em: 2016-12
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19. Time-Domain Three Dimensional BE-FE Method for Transient Response of Floating Structures Under Unsteady Loads
Abstract This paper presents a direct time-domain three dimensional (3D) numerical procedure to simulate the transient response of very large floating structures (VLFS) subjected to unsteady external loads as well as moving mass. The proposed procedure employs the Boundary Element and Finite Element methods (FEM-BEM). The floating structure and the surroundi
Lat. Am. j. solids struct.. Publicado em: 2016-07
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20. Simplified Analytical Approach to Evaluate the Nonlinear Dynamics of Elastic Cylindrical Shells Under Lateral Blast Loads
Abstract This paper presents an analytical solution to predict the nonlinear forced vibrations of elastic thin-walled cylindrical shells under suddenly applied loads. Interest in this problem is motivated by effects due to explosions on fluid-storage metal tanks. The model is based on the energy criterion due to Lagrange, in which the kinematic nonlinear rel
Lat. Am. j. solids struct.. Publicado em: 2016-07
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21. Benign skin disease with pustules in the newborn
Abstract: The neonatal period comprises the first four weeks of life. It is a period of adaptation where the skin often presents several changes: transient lesions, resulting from a physiological response, others as a consequence of transient diseases and some as markers of severe disorders. The presence of pustules in the skin of the newborn is always a rea
An. Bras. Dermatol.. Publicado em: 2016-04
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22. Effects of Measurements Conditions on an Extended-Gate FET used as pH sensor
Fluorine-doped tin oxide (SnO2:F) was investigate as the sensitive part of a pH sensor in the extended-gate field effect transistors (EGFET) device, which provided a linear response for pH range from 2 to 12; the sensitivity was 37 mV.pH-1 for experiments performed in absence of light. Neutral pH, leads to a transistor’s electric current remained practical
Mat. Res.. Publicado em: 05/02/2016
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23. Efficacy and safety of a single dose pentamidine (7mg/kg) for patients with cutaneous leishmaniasis caused by L. guyanensis: a pilot study
Abstract: BACKGROUND: There have been few studies on pentamidine in the Americas; and there is no consensus regarding the dose that should be applied. OBJECTIVES: To evaluate the use of pentamidine in a single dose to treat cutaneous leishmaniasis. METHODS: Clinical trial of phase II pilot study with 20 patients. Pentamidine was used at a dose of 7 mg/kg,
An. Bras. Dermatol.. Publicado em: 2015-12
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24. Partial response to sorafenib treatment associated with transient grade 3 thrombocytopenia in a patient with locally advanced thyroid cancer
Advanced radioactive refractory and progressive or symptomatic differentiated thyroid carcinoma (DTC) is a rare condition. Sorafenib was recently approved for the treatment of these patients. We present the case of a 67 year old woman diagnosed with DTC who underwent a total thyroidectomy with central, lateral-compartment neck dissection and shaving of the t
Arch. Endocrinol. Metab.. Publicado em: 2015-08