Static Resistance
Mostrando 1-12 de 113 artigos, teses e dissertações.
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1. RESISTANCE OF A RED LATOSOL TO PENETRATION: COMPARISON OF PENETROMETERS, MODEL ADJUSTMENT, AND SOIL WATER CONTENT CORRECTION
ABSTRACT Penetration resistance can be determined directly in the field or in the laboratory. However, data obtained using the two methods are not directly comparable. Considering soil moisture influences penetration resistance, penetration resistance data obtained using the two methods can be corrected based on common moisture values. To enable comparison o
Eng. Agríc.. Publicado em: 2020-08
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2. Efeitos agudos da hiperinsuflação com o ventilador com aumento do tempo inspiratório sobre a mecânica respiratória: ensaio clínico cruzado randomizado
RESUMO Objetivo: Avaliar os efeitos da hiperinsuflação com o ventilador sobre a mecânica respiratória. Métodos: Foi realizado ensaio clínico cruzado randomizado com 38 pacientes ventilados mecanicamente com infecção pulmonar. A ordem da hiperinsuflação ou controle (sem alterações nos parâmetros) foi randomizada. A hiperinsuflação foi realiza
Rev. bras. ter. intensiva. Publicado em: 14/10/2019
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3. Efeito da furfurilação em propriedades físicas e mecânicas da madeira de Pinus elliottii
RESUMO As madeiras de Pinus apresentam características indesejáveis às quais podem ser atenuadas com a aplicação de tratamentos, no qual é destacado a furfurilação. Sendo assim, o objetivo deste trabalho foi avaliar o efeito da impregnação de álcool furfurílico nas propriedades físicas e mecânicas da madeira de Pinus elliottii. Para tanto, fora
Matéria (Rio J.). Publicado em: 16/09/2019
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4. Does the combination of resistance training and stretching increase cardiac overload?
OBJECTIVES: To compare the effects of combinations of resistance training (RT) and static stretching (SS) on heart rate (HR), systolic pressure (SBP), diastolic pressure (DBP), rate pressure product (RPP), oxygen saturation (SpO2), rating of perceived effort (RPE), and heart rate variability (HRV) in men. METHODS: Twelve normotensive healthy men participat
Clinics. Publicado em: 02/09/2019
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5. Accuracy of chest auscultation in detecting abnormal respiratory mechanics in the immediate postoperative period after cardiac surgery
RESUMO Objetivo: Investigar a acurácia da ausculta torácica na detecção de mecânica respiratória anormal. Métodos: Foram avaliados 200 pacientes sob ventilação mecânica no pós-operatório imediato de cirurgia cardíaca. Foi avaliada a mecânica do sistema respiratório - complacência estática do sistema respiratório (Cest,sr) e resistência d
J. bras. pneumol.. Publicado em: 29/07/2019
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6. Impact of methods used to reconstitute tailings specimens on the liquefaction potential assessment of tailings dams
Abstract The aim of this research is to investigate the liquefaction susceptibility of silt sandy mining tailings by experimental laboratory techniques. The main aspect analyzed is how techniques of sample reconstitution impact the results obtained in static undrained triaxial tests. Different methods of sample preparation are reviewed, such as moist tamping
REM, Int. Eng. J.. Publicado em: 19/06/2019
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7. ESTABLISHMENT OF QUALITY CLASSES FOR HARDWOOD FLOORINGS BY SIMULATED USE
ABSTRACT Many wood species have been employed as floorings, however their performance can vary greatly according to the wood properties and the type of application. Mechanical tests can be performed for simulating the wood floorings in service, but there are no standards for sorting the materials according to their quality as flooring. In this study, the tes
CERNE. Publicado em: 20/05/2019
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8. Cyclic fatigue resistance of novel Genius and Edgefile nickel-titanium reciprocating instruments
Abstract: This study aimed to assess the cyclic fatigue resistance of Genius and EdgeFile X1 reciprocating instruments compared with WaveOne Gold Primary. Twenty Genius (Ultradent) 25.04, 20 Genius 30.04, 20 EdgeFile X1 (EdgeEndo) and 20 WaveOne Gold Primary (Dentsply Maillefer) instruments were included in this study and tested in a static cyclic fatigue te
Braz. oral res.. Publicado em: 11/04/2019
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9. Effect of Particle Size on Bamboo Particle Board Properties
ABSTRACT In this work, bamboo chips (Dendrocalamus asper) were crushed according to four particle size classes (A = -35+40 mesh; B = -40+48 mesh; C = -48+60 mesh; D = -60+65 mesh) to produce particleboards with four different compositions (100%A; 75%A + 25% B; 50%A + 50%B; 25%A + 25%B + 25%C + 25%D). Each composition was considered a treatment. The aim was
Floresta Ambient.. Publicado em: 04/04/2019
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10. Mechanical Properties of Thermally Modified Corymbia Citriodora and Eucalyptus Saligna Woods
ABSTRACT This study aimed at evaluating thermal modification in mechanical properties of Corymbia citriodora and Eucalyptus saligna woods compared with a control. To do so, three samples of each species were selected, with approximately 40 years, which had the first two three-meter long logs removed. Wood thermal modification was done through final temperat
Floresta Ambient.. Publicado em: 07/02/2019
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11. Characterization of a pediatric rotary blood pump
Abstract Introduction A ventricular assist device (VAD) is an electromechanical pump used to treat heart failures. For designing the physiological control system for a VAD, one needs a mathematical model and its related parameters. This paper presents a characterization procedure for determining the model parameter values of the electrical, mechanical, and
Res. Biomed. Eng.. Publicado em: 29/11/2018
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12. Study of the anti-penetration performance of concrete with different coarse aggregate content
Abstract Deep penetration experiments were performed on five types of concrete with different coarse aggregate content. The projectile diameter was 29.9 mm, the initial velocity was 647 m/s, and the volume fraction of the coarse aggregate was between 0% and 59.0%. The damage laws and damage mechanism of the target were analyzed. The pure mortar target had t
Lat. Am. j. solids struct.. Publicado em: 02/07/2018