• In this work, we intended to investigate the relationship between the swelling ratio Q and Young's modulus E of hydrogels from their contracted state to extreme swelling state and elucidate the underlining molecular mechanism. (rsc.org)
  • This tutorial illustrates the linear elasticity implementation in Modulus. (nvidia.com)
  • Modulus offers the capability of solving the linear elasticity equations in the differential or variational form, allowing to solve a wide range of problems with a variety of boundary conditions. (nvidia.com)
  • Three examples are presented in this chapter, namely the 3D bracket, the fuselage panel, and the plane displacement, to discuss the details of the linear elasticity in Modulus. (nvidia.com)
  • CLT in matrix form can be arranged to analyze different ply behavior like strain, twist, shear stress, and modulus of elasticity. (boatdesign.net)
  • A term used synonymously with modulus of elasticity. (vacaero.com)
  • Two-component cementitious mortar with a low modulus of elasticity for repairing concrete. (mapei.com)
  • Modulus of elasticity at 100% elongation: 0.35 N/mm². (mapei.com)
  • Total deflection, and modulus of elasticity computed from it, include a relatively constant component attributable to shear deformation. (astm.org)
  • Deflection and modulus of elasticity obtained from this method are related to flexural stress only and do not contain a shear component. (astm.org)
  • 1.6 All methods can be used to determine modulus of elasticity with sufficient accuracy. (astm.org)
  • The basic biomechanical difference between cortical and trabecular bones is linked to their different modulus of elasticity, as well as their different types, and this is where studies involving finite elements differ in their analyzes 5,7-10 . (bvsalud.org)
  • The higher the modulus of elasticity in simulated analysis, the greater the simulated bone density (type I to type IV). (bvsalud.org)
  • Poisson's ratio defines how a material expands (or contracts) transversely when being compressed longitudinally. (wikipedia.org)
  • While most natural materials have a positive Poisson's ratio (coinciding with our intuitive idea that by compressing a material it must expand in the orthogonal direction), a family of extreme materials known as auxetic materials can exhibit Poisson's ratios below zero. (wikipedia.org)
  • Simple designs of composites possessing negative Poisson's ratio (inverted hexagonal periodicity cell) were published in 1985. (wikipedia.org)
  • In addition, certain origami folds such as the Miura fold and, in general, zigzag-based folds are also known to exhibit negative Poisson's ratio. (wikipedia.org)
  • In this class of metamaterials, the negative response is along the direction of the applied force, which distinguishes these materials from those that exhibit negative transversal response (such as in the study of negative Poisson's ratio). (wikipedia.org)
  • Poisson's ratio describes the fundamental elasticity of any solid. (nanowerk.com)
  • Poisson's ratio has been a basic principle of engineering for more than 200 years as it allows engineers to identify how much a material can be compressed and stretched and how much pressure it will withstand, before it collapses. (nanowerk.com)
  • Materials with a negative Poisson's ratio are relatively rare and it has recently become popular in referring to them as metamaterials - a group of materials that attain interesting or extreme properties via structure rather than composition. (nanowerk.com)
  • Interesting examples of mechanical metamaterials are provided by negative Poisson's ratio and negative thermal expansion materials. (imechanica.org)
  • Here I will focus on negative Poisson's ratio materials, while inspiring results for negative thermal expansion materials were reported by Sigmund and Torquato (1997) and Steeves et al. (imechanica.org)
  • The property that characterizes this behavior is the Poisson's ratio which is defined as the ratio between the negative transverse and longitudinal strains. (imechanica.org)
  • The majority of materials are characterized by a positive Poisson's ratio which is approximately 0.5 for rubber and 0.3 for glass and steel. (imechanica.org)
  • Materials with a negative Poisson's ratio will contract (expand) in the transverse direction when compressed (stretched) (Fig. 1 - right) and, although they can exist in principle, demonstration of practical examples is relatively recent. (imechanica.org)
  • Figure1: Left: The material elongates and contracts when stretched, leading to a positive Poisson's ratio. (imechanica.org)
  • Right: The structure unfolds when stretched, causing lateral expansion and a negative Poisson's ratio. (imechanica.org)
  • There is significant interest in the development of negative Poisson's ratio materials because of potential in applications in areas such the design of novel fasteners (Choi and Lakes, 1991), prostheses (Scarpa, 2008), piezocomposites with optimal performance (Sigmund et al, 1998) and foams with superior damping and acoustic properties (Scarpa et al. (imechanica.org)
  • Discovery and development of materials with negative Poisson's ratio, also called auxetics, was first reported in the seminal work of Lakes in 1987 (Lakes, 1987). (imechanica.org)
  • The auxetic behavior was achieved using a novel foam characterized by a reentrant microstructure (Fig. 2) that unfolds when stretched (Fig. 1-right), causing lateral expansion and negative Poisson's ratio. (imechanica.org)
  • Lakes, R.S. Negative Poisson's ratio materials. (imechanica.org)
  • There are a growing number of natural materials that have been discovered to possess one or more negative Poisson's ratios. (imechanica.org)
  • More recently it has been found that natural layered ceramics (Song et al, 2008), ferroelectric polycrystalline ceramics (Tan et al, 2009) and zeolites (Grima et al, 2000) may all exhibit negative Poisson's ratio behavior. (imechanica.org)
  • ElastoScan, which colorizes the tissue elasticity difference, is available with linear and endocavity transducers. (fujifilm.com)
  • Intrinsic factors include progressive bone remodeling, loss of facial fullness, and decreased tissue elasticity. (medscape.com)
  • A mathematical theory of near cloaking for linear elasticity has been developed based on these papers. (wikipedia.org)
  • The mathematical theory of elasticity and its application to engineering mechanics is concerned with the macroscopic response of the material and not with the underlying mechanism that causes it. (britannica.com)
  • In this environment, a central concern for hotel investors and operators is expense elasticity, representing the extent to which expenses can be reduced in proportion to revenue. (hvs.com)
  • However, significant cardiovascular risk reduction and conduit arterial elasticity did not improve. (medscape.com)
  • Speaking in a more mathematical way, pentamode metamaterials have an elasticity tensor with only one non-zero eigenvalue and five (penta) vanishing eigenvalues. (wikipedia.org)
  • Very often Cauchy elasticity is sufficient to describe the effective behavior of mechanical metamaterials. (wikipedia.org)
  • When the unit cells of typical metamaterials are not centrosymmetric it has been shown that an effective description using chiral micropolar elasticity (or Cosserat ) was required. (wikipedia.org)
  • In a simple tension test, the elastic response of materials such as steel and bone is typified by a linear relationship between the tensile stress (tension or stretching force per unit area of cross section of the material), σ , and the extension ratio (difference between extended and initial lengths divided by the initial length), e . (britannica.com)
  • The ratio of tensile or compressive stresses to the resulting strain. (vacaero.com)
  • Non-significant associations exist between the manufactured illegal to legal cigarette price ratios and choosing manufactured illegal cigarettes, suggesting that smokers do not switch to manufactured illegal cigarettes as prices of legal ones increase. (bmj.com)
  • Focused on smokers, the ordinary least squares multivariate regression method was used to estimate the cigarette price elasticity. (who.int)
  • The cigarette price elasticity was estimated at -0.82 and -0.41 for depressive smokers and non-depressive smokers, respectively. (who.int)
  • Conclusions Although the association between depression and smoking had been documented, this study contributes to previous literature by investigating the extent to which cigarette price elasticities may differ between smokers with and without depressive symptoms. (who.int)
  • The inverse relation between cigarette price and consumption was stronger in countries not in the European Union (price elasticity for foreign brand cigarettes of −0.8) as compared to European Union countries (price elasticity of −0.4). (who.int)
  • Micropolar elasticity combines the coupling of translational and rotational degrees of freedom in the static case and shows an equivalent behavior to the optical activity. (wikipedia.org)
  • Assumption: If the income elasticity of demand is positive, the good is a normal good, and if the income elasticity of demand is negative, the good must be an inferior good. (usda.gov)
  • Negative income elasticity is common with staple foods in developing countries, generally considered inferior goods. (usda.gov)
  • This Demonstration considers elasticity, which is one of the central concepts in theoretical and empirical economics. (wolfram.com)
  • Elasticity is one of the most important terms in economics, and has a plethora of uses. (howthemarketworks.com)
  • Ultimately, preoperative elasticity ratio of the supraspinatus muscle-determined via SWE-was significantly higher in patients with insufficient rather than sufficient repair (3.66 vs. 1.83) and predicted insufficient repair (odds ratio=15.6) independently of tear size and muscle characteristics assessed by MRI and grayscale ultrasound. (arrs.org)
  • The model also formally justifies a simple benefit-cost ratio to measure the marginal value of public funds corresponding to non-budget neutral policies. (nber.org)
  • Since elasticity is a relative measure, it is independent of scale and, thus, provides a useful measure of comparison across all ranges and quantities. (usda.gov)
  • Price elasticity is a way to measure how much the amount of a product or service that is bought or sold changes when its price does. (questionpro.com)
  • Main outcome measure Price elasticity of demand for cigarettes (that is, the change in cigarette consumption according to a change in tobacco price) across all the European countries, estimated by double‐log multiple linear regression. (who.int)
  • The objective of this study is to estimate the price elasticity of demand for soft drinks, other sugar-sweetened beverages and high-energy dense foods in urban areas in Chile in order to evaluate the potential response of households' consumption to changes in prices. (biomedcentral.com)
  • It is often advantageous to work with the nondimensionalized and normalized variation of the elasticity equations to improve the training convergence and accuracy. (nvidia.com)
  • However, these non-significant findings may be due to lack of variation in the price ratio measures. (bmj.com)
  • The odds ratio of smoking for those with depressive symptoms, adjusted for demographic variables, was 1.3 (95% confidence interval, 1.1-1.6). (who.int)
  • Results Controlling for male to female prevalence ratio, price elasticities for consumption were −0.46 (95% confidence interval (CI) −0.74 to −0.17) and −0.74 (95% CI −1.13 to −0.35) for local and foreign brand, respectively. (who.int)
  • Hotels with high expense elasticity have the greatest capacity for cost reductions. (hvs.com)
  • If a change in the cost of a product or service greatly affects how much people want it, the elasticity of demand will be high. (questionpro.com)
  • UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to-cementitious materials ratio less than 0.25, and a high percentage of discontinuous internal fiber reinforcement. (dot.gov)
  • Since the one-size-fits-all paradigm is no longer valid, the relational DBMS landscape has been extended with over 250 (and still growing) of NoSQL and NewSQL DBMS that promise to provide the non-functional features high performance, scalability, elasticity, and high availability for any data-intensive use case. (cmg.org)
  • Inorganic crystalline materials have high thermal conductivity but lack the necessary elasticity. (ceramics.org)
  • Such materials can be tailored into configurations that are convenient for deformation, but the small stretching ratio and the high cost restrict the materials' potential in real-world applications. (ceramics.org)
  • Findings A 10% increase in the relative price ratio of legal to RYO cigarettes is associated with a 4.6% increase in the probability of consuming RYO cigarettes over manufactured legal cigarettes (p≤0.05). (bmj.com)
  • A logistic regression model was estimated to examine the odds ratio of smoking for those with depressive symptoms versus those without depressive symptoms. (who.int)
  • By understanding the pricing elasticity of their products, companies can determine the optimal price point to maximize revenue and profits. (questionpro.com)
  • to demonstrate some useful properties of elasticity analysis. (wolfram.com)
  • Financial accounting, including the structure and format of financial statements, analysis and interpretation of accounts, profit measurement, the cost and revenue concepts, and ratio analysis of financial statements. (lu.se)
  • Multivariable-adjusted are above acceptable ranges with medication such as statins or in- hazard ratios generated from ACLS analysis were compared with sulin. (cdc.gov)
  • The elasticity of steel and other metals arises from short-range interatomic forces that, when the material is unstressed, maintain the atoms in regular patterns. (britannica.com)
  • The higher the price elasticity, the more sensitive consumer demand is to price changes. (usda.gov)
  • If the cross-price elasticity of demand is positive, the goods X and Y are substitutes. (usda.gov)
  • If a change in price doesn't affect how much people want a product or service very much, the elasticity of demand will be low. (questionpro.com)
  • Price elasticity measures how price changes affect product demand. (questionpro.com)
  • Because it calculates price elasticity at a specific point on the demand curve, this method is more precise than the percentage method. (questionpro.com)
  • Visualization of different ratios, which are usually treated analytically, can be instructive for better understanding of elasticity and related economic concepts-for example, elasticity of demand function. (wolfram.com)
  • We estimated a Linear Approximation of an Almost Ideal Demand System Model to derive own and cross price elasticities of milk, coffee, tea and other infusions, plain water, soft drinks, other flavored beverages, sweet snacks, sugar and honey, and desserts. (biomedcentral.com)
  • We considered the censored nature of the data and included the Inverse Mills Ratio in each equation of the demand system. (biomedcentral.com)
  • Projections of labor demand were based on current output/input ratios. (cdc.gov)
  • Changes in wages resulting from changes in labor demand from 2014 to 2021 were based on labor supply and demand elasticities. (cdc.gov)
  • How to solve linear elasticity equations using the differential and variational forms. (nvidia.com)
  • In addition to the displacement formulation, linear elasticity can also be described by the mixed-variable formulation. (nvidia.com)
  • The higher the loss factor, the lower the degree of expense elasticity. (hvs.com)
  • Noting that SWE-derived elasticity is higher in patients with insufficient rotator cuff repair, "elasticity ratio independently predicted insufficient repair," wrote corresponding author Eun Kyung Khil of Hallym University Dongtan Sacred Heart Hospital in Korea. (arrs.org)
  • The higher ratio of government ( 3 , 4 ). (who.int)
  • Businesses can determine whether they need to adjust their own prices to remain competitive by analyzing the pricing elasticity of their competitors' products. (questionpro.com)
  • The 'special case' button returns the point where slopes of average and tangent curves are equal, so elasticity is effectively equal to one. (wolfram.com)
  • The following terms are arranged by subject group and provide a basic understanding of elasticities and related economic concepts. (usda.gov)
  • These concepts are integrated into our benchmarking-as-a-service platform and will be demonstrated by a set of real-world cases, addressing challenges such as: Which cloud provider does provide the best DBMS performance/cloud cost ratio for my application? (cmg.org)
  • Own and cross price elasticities were similar between models. (biomedcentral.com)
  • Several risk scores have been developed to provide guidance to The ACLS cohort produced similar hazard ratios to the FHS. (cdc.gov)
  • Elasticity is indispensable because it shows relative (per cent) change of a given variable due to relative (per cent) change in another variable. (wolfram.com)
  • a) What is the ratio of the cross sectional areas of the cylinders? (uoguelph.ca)
  • Cross-price elasticities can be complements or substitutes. (usda.gov)
  • On the resource level, cloud resources have become the preferred option to operate modern data-intensive applications in order to enable "unlimited scalability" and elasticity on the resource level. (cmg.org)