Elastic curvature. Medical search. Frequent questions

The material is also visco-elastic, which means it responds to your body's temperature and keeps you at a comfortable happy medium. (dreams.co.uk)
The visco-elastic material is temperature sensitive, so it keeps you warm or cool whenever you need it. (dreams.co.uk)
It has a soft jersey fabric cover that's visco-elastic meaning it responds to your body's temperature and will keep you at a happy medium throughout the night. (dreams.co.uk)
The portable seat cushion is filled with a soft visco-elastic gel and supportive memory foam that disperses your weight to alleviate pressure points. (hammacher.com)

Studies demonstrate that preventing force sideways across a joint by bracing prevents further curvature of the spine in idiopathic scoliosis, while other studies have also shown that braces can be used by individuals with scoliosis during physical activities. (wikipedia.org)
They often have abnormal curvature of the spine and weakness in major arteries. (nih.gov)
Ergonomically designed backrest frame has pronounced lumbar to fit the natural curvature of the spine. (modernofficefurniture.com)
Spine motion has been described to have two regions, a neutral zone where lumbar rotation can occur with little resistance and an elastic zone where structures such as ligaments, facet joints and intervertebral disks resist rotation. (cdc.gov)
Such a kyphotic posture during extension, however, may put excessive loading on the elastic structures of the spine and torso musculature increasing the risk of injury. (cdc.gov)

We propose a new discrete duality finite volume method for solving mean curvature flow of surfaces in ℝ 3 . (esaim-m2an.org)

Various manufacturing techniques exist to produce double-curvature shells, including injection, rotational and blow molding, as well as dip coating. (nature.com)
The forming of double curvature shipbuilding steel plates is performed by experienced craftsmen at IHC Metalix. (tudelft.nl)
In this thesis, the first steps are taken to capture and predict the manual forming process of double curvature steel plates. (tudelft.nl)

The asymptotic expansions they encode reveal a beautiful and unexpected connection between opposite curvatures - apparently, surfaces with positive or negative Gaussian curvatures form dual pairs of wrinkle patterns. (rutgers.edu)

The surface has a subtle 5 slope that promotes proper pelvic posture, encouraging correct lumbar curvature. (hammacher.com)
Ergonomic chairs, are chairs that are ergonomically developed with a certain curvature built in so as to provide support to your lumbar area, as you use it. (bel-india.com)
It also comes with an ergonomic arc design whose curvature matches your spinal curve and should be able to provide you with complete lumbar support that you require. (bel-india.com)
In this study, the range of lumbar curvature rotation was examined in twelve healthy, untrained volunteers at four torso inclination angles. (cdc.gov)
The lumbar curvature during straight-leg lifting tasks was then defined as a percentage of this range of possible lumbar curvatures. (cdc.gov)
By allowing the lumbar curvature to go into a highly kyphotic posture, subjects may be taking advantage of stretch-shortening behavior in extensor musculature and associated tendons to reduce the energy required to raise the torso. (cdc.gov)

Like the zonules in the eye, elastic connective tissue throughout the body needs the proper support structure to function properly. (nih.gov)
The paired corpora cavernosa contain erectile tissue and are each surrounded by the tunica albuginea, a dense fibrous sheath of connective tissue with relatively few elastic fibers. (medscape.com)

Motion of three-dimensional elastic films by anisotropic surface diffusion with curvature regularization. (cmu.edu)

The elastic Dim logo waistband provides additional lower body support while looking modern and stylish. (dim.com)
The elastic waistband of the ANDY model is navy blue. (hom.com)
Made for Trail-running , the CSX COMBO EVO2 3 in 1 sports shorts are composed of a compression shorts , ultra-soft shorts and a technical waistband with 2 elastic pockets , 1 key pocket and 1 zipped pocket ). (bvsport.com)

Boundary and interface conditions in the relaxed micromorphic model: Exploring finite-size metastructures for elastic wave control. (zbmath.org)
The energetics of protein-induced bilayer deformation in systems with finite monolayer equilibrium curvature were investigated using an elastic membrane model. (dtu.dk)
In 2003, Yan and Li [ 3 ] used a nonlinear finite element method to conduct numerical research and analysis on the process of periodic indentation by a rigid sphere in the elastic-fully plastic half-space. (hindawi.com)
5 ] studied the unloading of loading contact between an elastic-plastic sphere and a rigid plane loading using a finite element method and gave a dimensionless relationship between unloading load and deformation of the sphere, as well as dimensionless expressions of residual interference and residual curvature of the sphere after fully unloading, which has universal theoretical guiding significance. (hindawi.com)
Because deformation mechanism has an important influence on the normal contact stiffness of fixed joint surface in the elastic-plastic contact problem, the accuracy degree of the model obtained by fitting the finite element analysis curve of each stage of elastic-plastic contact evolution has a great influence on the normal contact stiffness. (hindawi.com)
An augmented Lagrangian method, together with an approximation by finite elements is advocated for the computation of the load capacity ratio and the corresponding elastic stress. (global-sci.org)

Severe curvatures that rapidly progress may be treated surgically with spinal rod placement. (wikipedia.org)

Knowledge of the channel geometry is in particular an obstacle when dealing with natural occurring fluid flow or wave propagation through elastic channels for which no geometrical design is possible and in addition the shape can rapidly vary such as is the case for biological channel flows (lower and upper airway respiratory or blood circulation system) and related biomechanical phenomena. (hindawi.com)
We contend that the presence of normal quantities of structurally organized elastic fibers are required to maintain the correct geometry of the cornea, which is disrupted in Marfan syndrome. (cardiff.ac.uk)

Global Mechanics explains how transverse energy transforms into the tension of the longitudinal curvature and reversible deformation energy by compaction and compression of Global Aether when transforming from electromagnetic energy to mass, and vice versa. (molwick.com)
In this model the bilayer deformation energy DeltaG(def) has two major components: a compression-expansion component and a splay-distortion component, which includes the consequences of a bilayer curvature frustration due to a monolayer equilibrium curvature, c(0), that is different from zero. (dtu.dk)

Corneal thickness and radius of curvature were calculated using optical coherence tomography microscopy. (cardiff.ac.uk)
Corneal refractive surgery alters the curvature of the cornea to focus light more precisely on the retina. (msdmanuals.com)
In PRK, the corneal epithelium is removed and then the excimer laser is used to sculpt the anterior curvature of the corneal stromal bed. (msdmanuals.com)

We disrupted the underlying principle of curvature-induced stiffening in human cadaveric feet by transecting the transverse tissue, which reduced the mid-foot stiffness by nearly half," said Carolyn Eng, another co-author of the article. (newswise.com)
When the director is along the out-of-plane direction, the surface shell undergoes equi-biaxial expansion, resulting in hexagonal, checkerboard, herringbone or labyrinth pattern, determined by a single dimensionless parameter Cs which characterizes the stiffness ratio and curvature of the system. (imechanica.org)

We find that the stalk formation energy decreases with curvature by up to 31 k B T in a 20-nm-radius vesicle compared with planar membranes and by up to 8 k B T in the fusion of highly curved, long, tubular membranes. (haifa.ac.il)

This robust fabrication framework should be invaluable for future studies on the mechanics of thin elastic shells and their intrinsic geometric nonlinearities. (nature.com)
Here, we introduce a simple and robust mechanism to fabricate hemispherical thin elastic shells by the coating, drainage and subsequent curing of polymer solutions on curved molds. (nature.com)
This has contributed to a growing interest in the modelling of shape transitions of thin elastic structures that arise primarily due to non-uniform local deformations resulting from the material's internal structure. (cam.ac.uk)

lt;p>Transverse wrinkles usually occur in a uniaxially tensile elastic membrane and will be smoothed upon excess stretching. (imechanica.org)

Here we use continuum elastic theory of lipid monolayers to determine the relationship between membrane shape and energy barriers to fusion. (haifa.ac.il)

The results supplied herein are expected to provide a foundation for the investigation of the interactive effects among the thermal, magnetic, electric and elastic fields in thin-walled structures and of the possibility to apply the MTEE adapting. (scialert.net)

These rules are the latest from an ongoing study of elastic confinement using the tools of Gamma-convergence and convex analysis. (rutgers.edu)

Purpose: The presence of fibrillin-rich elastic fibers in the cornea has been overlooked in recent years. (cardiff.ac.uk)
The aim of the current study was to elucidate their functional role using a mouse model for Marfan syndrome, defective in fibrillin-1, the major structural component of the microfibril bundles that constitute most of the elastic fibers. (cardiff.ac.uk)
Conclusions: Elastic fibers have an important, multifunctional role in the cornea as highlighted by the differences observed between Fbn1+/− and wild type animals. (cardiff.ac.uk)
The 2 suspensory ligaments, composed of primarily elastic fibers, support the penis at its base. (medscape.com)

Partly motivated by the large number of applications, a substantial amount of research is performed (see, e.g., [ 3 - 8 ]) on elastic tube modeling for a variety of boundary and loading conditions since the pioneering work [ 9 - 11 ] on thin-walled elastic tubes. (hindawi.com)
When c(0) not equal 0, the curvature frustration contribution is determined by the choice of boundary conditions at the protein-lipid boundary (by the value of s), and DeltaG(def) is the sum of the energy for c(0) = 0 plus the curvature frustration-dependent contribution. (dtu.dk)
One cannot predict curvature effects without addressing the proper choice of boundary conditions at the protein-bilayer contact surface. (dtu.dk)

When near objects are viewed, the ciliary muscle contracts, the ligaments relax, and the lens, being elastic, bulges in front and gains more curvature. (britannica.com)

Results: Fbn1+/− corneas were significantly thinner than wild types and displayed a higher radius of curvature. (cardiff.ac.uk)
Conclusion: According to the present data, it could be observed that the smaller the curvature radius, the greater the deviation. (bvsalud.org)

The transverse curvature of the sheet engages its transverse stretching when attempting to bend it. (newswise.com)
This coupling of bending and stretching due to curvature is the principle underlying the stiffening role of the transverse arch. (newswise.com)

In contrast, in the fusion of long tubular compartments, the surface tension does not accumulate due to the formation of the diaphragm, and the energy barrier for pore expansion increases with curvature by up to 11 k B T. This suggests that inhibition of polymorphic virus infection could particularly target this feature of the second barrier. (haifa.ac.il)
Here, we study the rapid fabrication of hemispherical elastic shells by coating a curved surface with a polymer solution that yields a nearly uniform shell, upon polymerization of the resulting thin film. (nature.com)
Using a stretched elastic sheet situated at a fluid interface, we generate a surface with spatially varying curvature and observe the trajectory and dynamics of an induced crack. (aps.org)
In 2004, Jones [ 4 ] proposed two basic models for loading and unloading of an elastic-plastic rough surface. (hindawi.com)
6 ] further proposed an unloading contact statistical model of rough surface elastic-plastic contact under a single loading and unloading cycle. (hindawi.com)
9 ] established a static loading and unloading contact model based on the elastic-plastic unloading contact model of the rough surface of the KE model. (hindawi.com)

Heyliger and Pan (2004) demonstrated the free vibration analysis of the simply supported and multilayered Magneto-electro-elastic (MEE) plates under cylindrical bending. (scialert.net)

Despite those efforts and the increased insight in the stability and bifurcation of circular elastic tubes, no analytical model is capable of providing geometrical features for channels subjected to rapidly varying loading resulting in small as well as large deformations of thin as well as thick wall tubes of variable length. (hindawi.com)
Therefore, in the current work quasi-analytical parameterised geometrical ring models are used in order to provide geometrical features of a compressed elastic tube. (hindawi.com)

Furthermore, an elastic perfectly plastic stress strain curve is used. (tudelft.nl)
Subtly sexy, the shorty reveals the natural curvature of the buttocks, while being perfectly fitted at the waist. (dim.com)
This shape perfectly follows the curvature of the hip and gives a slightly retro look to the underwear. (hom.com)

In 2002, Lin and Yui [ 2 ] studied frictionless contact between rigid sphere and elastic-fully plastic half-space or elastic-fully plastic sphere and rigid plane, and proposed loading and unloading models. (hindawi.com)
One problem of particular interest is the elastic contact of a sphere which appears smooth to the naked eye, but has some micro roughness which is relevant at low normal loads. (imtlucca.it)

After a brief introduction to the mathematics of elastic sheets and shells, this talk will focus on a new set of simple, geometric rules we have discovered for predicting wrinkle patterns. (rutgers.edu)

Treatment options for idiopathic scoliosis are determined in part by the severity of the curvature and skeletal maturity, which together help predict the likelihood of progression. (wikipedia.org)

Our new model system offers the opportunity to better understand the physics of collectives with elastic properties and perhaps render them usable for technical applications in the future,' states the physicist Ulrich Schwarz. (news-medical.net)

Conservation of elastic energy by transformation of some types of energy into others. (molwick.com)

Consequently, a particular type of a curved-line bending compliant mechanism is developed with the ability to reduce some of the deformation constraints, specifically the need to fold in an elastic-kinetic structure. (researchgate.net)

Deviation occurrence was measured 1 mm short of working length and at the middle of the curvature by using the ruler tool. (bvsalud.org)
Concerning to the analysis site, it could be noted that the area 1 mm short of working length presented a higher deviation than the point at the middle of the curvature. (bvsalud.org)
Campos and Pastora 5 used K type instruments connected to oscillatory system for endodontic preparation and observed root canal deviation toward the inner wall of the curvature, at the cervical and middle thirds as well as toward the outer wall of the apical third. (bvsalud.org)

Thereafter, the plate is rolled to initiate the second curvature and form the saddle shape. (tudelft.nl)
Depending on the bodiesâ€˜ curvatures and the roughness parameters, the shape of the contact spots and the resulting stresses can take many different forms. (imtlucca.it)

A numerical method for the computation of the load capacity ratio is presented to determine if the elastic body fractures under external traction. (global-sci.org)

Our ElastiMesh Stool features a breathable elastic mesh backrest and seat that holds its form unlike any seating material! (modernofficefurniture.com)
Elastic Mesh not only breathes but will never bottom out like a traditional foam cushion stool. (modernofficefurniture.com)
Incredible wear and durability of elastic mesh is unequaled. (modernofficefurniture.com)

In many cases, such as Borhani and Kalantar [2], the technique aims to meet situations in which contradictory attributes are necessary, such as the simultaneous need for high elastic deformation and rigidity to support load. (researchgate.net)

A model for dislocations in epitaxially strained elastic films. (cmu.edu)
It should be noted that including vessel curvature and ECM production in the model was paramount to obtain a good agreement with the experimental data. (springer.com)
On the other hand, repulsive functionals can be used to model impermeability of elastic objects, for instance they can be applied to the evolution of inextensible curves subject to the elastic flow. (rutgers.edu)

Different types of corrective lenses are used, depending on an individual's ability to change lens curvature for accommodation. (britannica.com)
This increased curvature enhances the focusing power of the lens and brings the nearer object to better focus on the retina . (britannica.com)
The lens is elastic. (msdmanuals.com)

Elastic energy of Global Aether would be the primary or essential energy from which the rest could derive. (molwick.com)
The oscillations the scientists observed arise because the movement of the individual pathogens is converted into elastic energy that is stored in the vortex. (news-medical.net)
Here are the steps needed to make a nice calibration, note that it is important to do this before setting an energy scale, since the curvature correction can move the peaks slighly on the emission axis. (lu.se)
Measure a few known lines across the detector, for example elastic lines with known monochromator energy. (lu.se)

The material also conforms to the natural curvature of your head and neck for optimal comfort and support. (dreams.co.uk)

Variation in the tension of the longitudinal curvature of Global Aether. (molwick.com)

We use our results to study the convergence of the perturbative series and compare with elastic unitarity. (lu.se)

The bottom is a stretch fit aided by an elastic strap over the calf. (nsmb.com)

Here, we find a crucial factor, the curvature, which can control effectively and precisely the wrinkling and smoothing regimes. (imechanica.org)

Y. Klein, E. Efrati and E. Sharon, Shaping of elastic sheets by prescription of non-Euclidean metrics. (esaim-cocv.org)

The exact closed-form solutions for multilayered piezo-electric-magnetic and purely elastic plates have been proved for special cases of Pan s analysis. (scialert.net)
E. Efrati, E. Sharon and R. Kupferman, Elastic theory of unconstrained non-Euclidean plates. (esaim-cocv.org)

Many people with the Ehlers-Danlos syndromes have soft, velvety skin that is highly stretchy (elastic) and fragile. (medlineplus.gov)

P. Guan and Y. Li, The Weyl problem with nonnegative Gauss curvature. (esaim-cocv.org)

They were able to track individual parasites in the rotating vortices and measure both their speed and curvature. (news-medical.net)

Anatomy41

Organisms5

Diseases16

Chemicals and Drugs38

Analytical, Diagnostic and Therapeutic Techniques and Equipment58

Psychiatry and Psychology11

Phenomena and Processes78

Disciplines and Occupations11

Technology, Industry, Agriculture15

Information Science13

Health Care6

Visco-elastic4

Spine5

Mean curvature1

Double-curvature3

Surfaces1

Lumbar6

Connective tissue2

Anisotropic1

Waistband3

Finite6

Spinal1

Geometry2

Deformation energy2

Corneal3

Stiffness2

Decreases1

Thin elastic3

Wrinkles1

Membrane1

Structures1

Convex1

Fibers4

Boundary3

Ligaments1

Radius2

Transverse2

Surface6

Cylindrical1

Analytical2

Perfectly3

Sphere2

Shells1

Predict1

Physics1

Conservation1

Constraints1

Deviation3

Shape2

Ratio1

Mesh3

Attributes1

Model3

Lens3

Energy4

Natural1

Variation1

Convergence1

Stretch1

Precisely1

Sheets1

Plates2

Soft1

Problem1

Measure1