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Schalentheorie Definition

Membrane
(n.) A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part or organ, and often secreting or absorbing certain fluids.
Reissner's membrane
() The thin membrane which separates the canal of the cochlea from the vestibular scala in the internal ear.
Theory
(n.) A doctrine, or scheme of things, which terminates in speculation or contemplation, without a view to practice
Theory
(n.) An exposition of the general or abstract principles of any science
Theory
(n.) The science, as distinguished from the art
Theory
(n.) The philosophical explanation of phenomena, either physical or moral

membrane theory of shells; theory of shells; membrane theory Bedeutung

chorioallantois
chorioallantoic membrane
the very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois
membrane a thin pliable sheet of material
membrane bone any bone that develops within membranous tissue without previous cartilage formation, e.g. the clavicle and bones of the skull
basilar membrane a membrane in the cochlea that supports the organ of Corti
caul
veil
embryonic membrane
the inner membrane of embryos in higher vertebrates (especially when covering the head at birth)
fetal membrane any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus
cell membrane
cytomembrane
plasma membrane
a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell, proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell, all cells have a cell membrane
nictitating membrane
third eyelid
a protective fold of skin in the eyes of reptiles and birds and some mammals
eardrum
tympanum
tympanic membrane
myringa
the membrane in the ear that vibrates to sound
fertilization membrane the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon
hyaloid membrane
hyaloid
the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina
mucous membrane
mucosa
mucus-secreting membrane lining all body cavities or passages that communicate with the exterior
membrane
tissue layer
a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
semipermeable membrane a membrane (as a cell membrane) that allows some molecules to pass through but not others
arachnoid
arachnoid membrane
the middle of the meninges
hymen
maidenhead
virginal membrane
a fold of tissue that partly covers the entrance to the vagina of a virgin
serous membrane
serosa
a thin membrane lining the closed cavities of the body, has two layers with a space between that is filled with serous fluid
synovial membrane
synovium
a thin membrane in synovial (freely moving) joints that lines the joint capsule and secretes synovial fluid
big-bang theory
big bang theory
(cosmology) the theory that the universe originated sometime betweenbillion andbillion years ago from the cataclysmic explosion of a small volume of matter at extremely high density and temperature
steady state theory
continuous creation theory
(cosmology) the theory that the universe maintains a constant average density with matter created to fill the void left by galaxies that are receding from each other, the steady state theory has been abandoned in favor of the big bang theory
hypothesis
possibility
theory
a tentative insight into the natural world, a concept that is not yet verified but that if true would explain certain facts or phenomena, a scientific hypothesis that survives experimental testing becomes a scientific theory, he proposed a fresh theory of alkalis that later was accepted in chemical practices
M-theory (particle physics) a theory that involves an eleven-dimensional universe in which the weak and strong forces and gravity are unified and to which all the string theories belong
string theory (particle physics) a theory that postulates that subatomic particles are one-dimensional strings
theory a belief that can guide behavior, the architect has a theory that more is less, they killed him on the theory that dead men tell no tales
theory a well-substantiated explanation of some aspect of the natural world, an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena, theories can incorporate facts and laws and tested hypotheses, true in fact and theory
theory of gravitation
theory of gravity
gravitational theory
Newton's theory of gravitation
(physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them
preformation
theory of preformation
a theory (popular in the th century and now discredited) that an individual develops by simple enlargement of a tiny fully formed organism (a homunculus) that exists in the germ cell
scientific theory a theory that explains scientific observations, scientific theories must be falsifiable
field theory (physics) a theory that explains a physical phenomenon in terms of a field and the manner in which it interacts with matter or with other fields
economic theory (economics) a theory of commercial activities (such as the production and consumption of goods)
Malthusianism
Malthusian theory
Malthus' theory that population increase would outpace increases in the means of subsistence
communications
communication theory
the discipline that studies the principles of transmiting information and the methods by which it is delivered (as print or radio or television etc.), communications is his major field of study
set theory the branch of pure mathematics that deals with the nature and relations of sets
group theory the branch of mathematics dealing with groups
Galois theory group theory applied to the solution of algebraic equations
probability theory
theory of probability
the branch of applied mathematics that deals with probabilities
atomism
atomic theory
atomist theory
atomistic theory
(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles, the ancient Greek philosophers Democritus and Epicurus held atomic theories of the universe
holism
holistic theory
the theory that the parts of any whole cannot exist and cannot be understood except in their relation to the whole, holism holds that the whole is greater than the sum of its parts, holistic theory has been applied to ecology and language and mental states
atomic theory a theory of the structure of the atom
Bohr theory (physics) a theory of atomic structure that combined Rutherford's model with the quantum theory, electrons orbiting a nucleus can only be in certain stationary energy states and light is emitted when electrons jump from one energy state to another
cell theory
cell doctrine
(biology) the theory that cells form the fundamental structural and functional units of all living organisms, proposed in by Matthias Schleiden and by Theodor Schwann
wave theory
undulatory theory
wave theory of light
(physics) the theory that light is transmitted as waves
corpuscular theory
corpuscular theory of light
(physics) the theory that light is transmitted as a stream of particles
kinetic theory
kinetic theory of gases
(physics) a theory that gases consist of small particles in random motion
relativity
theory of relativity
relativity theory
Einstein's theory of relativity
(physics) the theory that space and time are relative concepts rather than absolute concepts
general relativity
general theory of relativity
general relativity theory
Einstein's general theory of relativity
a generalization of special relativity to include gravity (based on the principle of equivalence)
special relativity
special theory of relativity
special relativity theory
Einstein's special theory of relativity
a physical theory of relativity based on the assumption that the speed of light in a vacuum is a constant and the assumption that the laws of physics are invariant in all inertial systems
quantum theory (physics) a physical theory that certain properties occur only in discrete amounts (quanta)
kinetic theory of heat a theory that the temperature of a body increases when kinetic energy increases
germ theory (medicine) the theory that all contagious diseases are caused by microorganisms
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Die Schalentheorie befasst sich mit den Eigenschaften und der Modellierung von Schalen. Schalen sind biegesteife Flächentragwerke, bei denen zwei Abmessungen gegenüber der dritten groß sind und die ? in Abgrenzung zu den ebenen Flächentragwerken Scheibe und Platte ? bereits unbelastet in allen drei Raumrichtungen gekrümmt sein können. Die Bilder rechts zeigen zwei typische Beispiele schalenartiger Strukturen: die hohlen Halme von Süßgräsern wie hier beim Bambus und eine Karosserie. Biegeschlaffe dünnwandige Strukturen wie Flug- oder Ballonhäute werden dagegen als Membranen bezeichnet.