mechanical models for linear viscoelastic response
principles of polymer processing
... are the body forces (e.g., gravitation), and Fs the surface forces (e.g., viscous forces) that are acting on the control volume If there are other forces, such as electric or magnetic forces, acting ... dij ¼ for i ¼ j, and dij ¼ for i 6¼ j For convenience, the tensor p is called the total stress tensor and s is simply the stress tensor Clearly, pij ¼ tij for i 6¼ j and pii ¼ P þ tii for i ¼ ... MACROSCOPIC LINEAR MOMENTUM BALANCE AND THE EQUATION OF MOTION Newton’s Second Law is a statement of conservation of linear momentum for a system: DPs X ¼ Fi Dt i ð2:5-1Þ where Ps is the linear momentum...
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Control of octahedral rotations and physical properties in srruo3 perovskite oxide films
... pc stands for pseudocubic whilst o stands for pseudo-orthorhombic 54 Figure 3.7 Schematic representation of the structure used for the first-principles calculations for SRO film ... at Argonne National Laboratory for their help in my XAFS measurement Particularly, I would like to express my grateful appreciation to Dr Sun Cheng-Jun for performing the measurements and processing ... CaMnO3, LaNiO3, etc Therefore, it is important to investigate how the octahedral rotations affect the physical properties of perovskite oxide materials The criteria for the formation of perovskite...
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Tài liệu Sport and Physical Activity in Children with Congenital Heart Disease ppt
... cardiac malformation is given priority in assessing a child's fitness to exercise It is, however, better to primarily use (postoperative) hemodynamic function and not the type of malformation for this ... with hemodynamically important cardiac defects before necessary corrective procedures and has been included for completeness's sake only (table 2) For patients who have to be treated with surgical ... cardiologic centers Certifying fitness for sports The wide range of congenital heart disease makes issuing a so-called sports certificate difficult A form that covers all forms of disease does not exist...
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Tài liệu Time trends in leisure time physical activity and physical fitness in elderly people: 20 year followup of the Spanish population national health survey (1987-2006) docx
... activity and physical fitness separately for men and women and we excluded respondents with missing data for any outcome We calculated descriptive measures for all variables of interest by aged-group ... reported prevalence for the dependent variables and age group according to the SNHS Third, we fit logistic regression models by gender to assess factors independently associated for each dependent ... analysis We assessed significant interaction terms in fully adjusted models; for significant effects, we stratified the fully adjusted models by the relevant factor The estimates were made using the...
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Báo cáo " On equations of motion, boundary conditions and conserved energy-momentum of the rigid string " doc
... last terms on the right hand side of formula π (19) cancel with the term dσ∂1 ( ∂∂L ) Therefore the final formula for the energy- momentum four µ,01 -vector has form π ∂L ∂L dσpµ; pµ = − Pµ = + ∂i ... final formula forMµν has the following form π Mµν = π dσ(xµ pν − xν pµ ) + dσ ∂L ∂L xν,i − xµ,i , ∂xµ,0i ∂xν,0i (24) where pµ is the momentum density given by formula (20) The Rigid String For ... derivatives of δx in formula (9) cannot be removed by any partial integrations The Z-terms in formula (9) for δS can be regarded as a contribution from the corner points of the rectangle R For the closed...
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PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx
... methods for prediction A "toolbox" of mechanistic perturbation models has been developed that can be implemented where needed in SPARC for a specific reactivity query Resonance perturbation models ... retention times for more than 8000 compounds [21, 23, 24] Ultimately, these mechanistic components will be fully implemented for the aforementioned chemical and physical property models, and will ... pKa [38] for compounds processing multiple sites Unfortunately, up to now no reliable method has been available for predicting pKa over a wide range of molecular structures, either for simple...
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Sport and Physical Education in China potx
... for long outside the mainstream of world scholarship They spoke, if they spoke at all, in shibboleths and arcane formulae, presenting the ideal for the actual, the transitory political line for ... and brought forward the time when the public expectation of Sport for All is likely to rise significantly Sport in China 13 Transport and communication For provincial sports teams, for soccer ... driven by two factors First, government economic reform is forcing a restructuring of industry—including the industry of sport (for example soccer) For some, this has been a golden opportunity to...
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phase equilibria and fluid properties in the chemical industry estimation and correlation
... Chemical Society: Washington, DC, 1977 FOREWORD The A C S SYMPOSIUM SERIES was founded in 1974 to provide a medium for publishing symposia quickly in book form The format of the SERIES parallels that ... Intermolecular potential for molecules of a simple fluid, solid line; and for globular molecules such as C(CH ) dashed lines T B If> / T Figure Reduced second virial coefficients for several models: solid ... Intermolecular forces operate between the centers of regions of substantial electron density These centers are the molecular centers for Ar and H CH groups in C H —hence the name acentric factor for the forces...
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carbon nanotubes. basic concepts and physical properties, 2004, p.220
... Nevcttheless, for applications of carbon nanotuhes they are extrcmely ~] valuable, and we refer to the literature for reviews on this topic, e.g., Ajayan and ~ h o u [ ' for more information on ... factor q l n , while the interval (-n/a, ~ / a for k is extended by the same factor ] for & The linear and helical quantum numbers can be transformed into each other by the rollowing equations~2.551 ... which for E l , in the Ddh point group is ( x ,y) The transformation properties of this standard basis straightforwardly yield a possible matrix representation, which is two-dimensional for The...
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báo cáo hóa học:" General anxiety, depression, and physical health in relation to symptoms of heart-focused anxietya cross sectional study among patients living with the risk of serious arrhythmias and sudden cardiac death" doc
... disorders is therefore complicated for the caregivers, creating a lot of uncertainty and distress when interpreting signs and symptoms for the individuals at risk [11,12] In addition, information of ... genetic counseling for LQTS and HCM The proportion of decliners in the study was 26.6% The Regional Committee for Medical and Health Research Ethics did not allow collecting information for individuals ... was obtained from the medical records Information about the study and a consent form was mailed to the patient together with the questionnaire 2-4 weeks before the genetic counseling The participants...
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Báo cáo hóa học: " Structural and physical properties of antibacterial Ag-doped nano-hydroxyapatite synthesized at 100°C" pptx
... form a 0.5-mol/L solution A designed amount of calcium nitrate tetrahydrate was also dissolved in deionized water to form a 1.67-mol/L solution The mixture was stirred constantly for h by a mechanical ... established that silver nanoparticles are known for their strong antibacterial effects for a wide array of organisms (e.g., viruses, bacteria, fungi) [26] Therefore, silver nanoparticles are widely used ... Spectrometer) For this, 1% of the powder was mixed and ground with 99% KBr Tablets of 10 mm diameter for FTIR measurements were prepared by pressing the powder mixture at a load of tons for and the...
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Báo cáo sinh học: " Research Article Multiple Positive Solutions of Fourth-Order Impulsive Differential Equations with Integral Boundary Conditions and One-Dimensional p-Laplacian" ppt
... following two conditions is satisfied: a Ax ≥ x , for all x ∈ P ∩ ∂Ω1 , and Ax ≤ x , for all x ∈ P ∩ ∂Ω2 ; b Ax ≤ x , for all x ∈ P ∩ ∂Ω1 , and Ax ≥ x , for all x ∈ P ∩ ∂Ω2 Then, A has at least one ... PC1 0, | x PC1 ≤ r} be a bounded set Then, for all x ∈ Br , we have Tx ∞ Tx ≤ 1 γ1 φq γM 4 ∞ ≤ φq Therefore T Br is uniformly bounded On the other hand, for all t, s ∈ Jk k | Tx t − Tx s | t Tx ... Proposition 2.2 If H2 holds, then we have H t, s > 0, for t, s ∈ 0, , G t, s > 0, H t, s ≥ 0, G t, s ≥ 0, 2.11 for t, s ∈ J Proposition 2.3 For t, s ∈ 0, , we have e t e s ≤ G t, s ≤ G t, t t 1−t...
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Synthesis and Physical Properties of Polyester Amides Derived from Lipid-Based Components
... Young’s Modulus versus Structures 29 Counts X-ray Diffraction 2θ (º) α-form (helical conformation) β-form (planar conformation) Scattering Angle (2θ, Degree) d-spacing (Å) 16.8 5.23 19.0 4.65 ... 58.8 76.0 Tm: Melting Temperature; Tc: Crystallization Temperature 20 3) Dynamic Mechanical Analysis (DMA) • Viscoelastic properties • Measuring glass transition temperature 21 DMA Results ... linkage: Biodegradability Amide linkage: Thermal Stability, Mechanical Strength Applications Biomedical applications: Stent-coatings for drug delivery Absorbable surgical materials Material...
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Báo cáo sinh học: "Untangling the web of functional and physical interactions in yeast" pdf
... either of the complexes is needed to perform an essential function, but the complexes can compensate for one another Because the same complex can compensate for the function of more than one other ... Because of the large number of potential multi-color four-gene motifs, a similar search was performed for only a small subset of these Although network motifs can be considered to be the building ... genes can also be derived from computational analysis of datasets that include information about both genes - for example, on the basis of high gene expression or sequence similarity These types...
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Báo cáo khoa học: "Relation between ecological conditions and fir decline in a sandstone region of the Vosges mountains (northeastern France) Anne-Laure Thomasa, Jean-Cl." potx
... between 300 and 000 m Scientific studies carried out in the framework of the DEFORPA programme (French acronym for Forest Decline and Atmospheric Pollution) revealed that several factors interacted ... management unit (typically 10–20 in the Vosgian forests) Damage was expressed in three classes (table II) Training courses were organised for all foresters involved No quality control was made, ... Vosges, for example, nutrient rich substrates can be found at high elevation, so that the overall relationship between soil status and elevation is less clear for the whole Vosges Mts than for the...
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Báo cáo khoa học: "Genetic control of pulp and timber properties in maritime pine (Pinus pinaster Ait.)" docx
... Correlated response (in trait units) to selection for height (proportion selected 5%) d Correlated response (in %) to selection for height (proportion selected 5%) e Correlated response (in %) for a ... Correlated response (in trait units) to selection for density (proportion selected 5%) d Correlated response (in %) to selection for density (proportion selected 5%) e Correlated response (in %) for ... was detected for acetone extractives (aext), a non-significant GCA variance (P = 5.68%) was observed for this trait This can be explained by the structure of the two models employed for statistical...
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Báo cáo y học: "Effects of lifestyle physical activity on perceived symptoms and physical function in adults with fibromyalgia: results of a randomized trial" pdf
... the most common form of LPA, other popular forms of LPA included garden/outdoor activity (for example, mowing the lawn, planting flowers, pulling weeds); household activity (for example, cleaning ... record their steps on a step diary form At the end of each day they recorded their steps on a diary form and zeroed their pedometer so they could record their steps for the next day They also kept ... to 120-minute sessions presented information on the symptoms, diagnosis, and treatment of FM The rationale for FME was to provide education and to control for the effects of being enrolled in...
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Báo cáo y học: "Effects of rehabilitative interventions on pain, function and physical impairments in people with hand osteoarthritis: a systematic review" docx
... of evidence 1b and 2b on Oxford levels of evidence) [10] in English were included Page of 13 for evaluation if they compared some form of rehabilitation with a control for adults whose condition ... laser therapy delivered thrice weekly for to weeks on pain and hand function This contrasts with findings for laser therapy in the treatment of knee OA, for which there is moderate-quality evidence ... Zimmermann-Gorska I: EULAR evidence based recommendations for the management of hand osteoarthritis: Report of a Task Force of the EULAR Standing Committee for International Clinical Studies Including Therapeutics...
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Báo cáo y học: "Depression and physical activity in a sample of nigerian adolescents: levels, relationships and predictors" pptx
... evidence for a cross-sectional association between physical activity and depressive symptoms for both boys and girls at baseline, with a decrease in the odds for depressive symptoms of about 8% for ... the students were formally informed of the purpose of the study in an assembly in the school hall, in their classrooms or any other convenient place The students were also informed of their right ... difficulty in filling the forms Participants were comfortable with all the questions on the CDI but had problems mainly with the PAQ-A questionnaire because some questions sought information on their...
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analysis of boundary conditions and concept design for port dong lam, thua thien-hue province, vietnam
... Equation 4: CERC formula 56 Equation 5: basic sediment transport formula 57 Equation 6: formula to calculate v_eff 82 Equation 7: formula to calculate ... coastal impact, numerical models will be setup using SWAN and MIKE LITPACK The results from the wave modelling study form the input for the morphological model In both models, normal and extreme ... channel length of 290 m The turning circle allows for the turning manoeuvre for which a radius of 290 m is reserved In the mooring basin, ships are forced into the right position to make safe berthing...
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