CO OZNACZA SŁOWO DIFFUSION
Dyfuzja
Dyfuzja jest ruchem netto substancji z regionu o wysokim stężeniu do regionu o małym stężeniu. Jest to również określane jako ruch substancji w dół od gradientu stężenia. Gradient to zmiana wielkości danej zmiennej przy zmianie innej zmiennej. Na przykład zmiana stężenia na pewnej odległości nazywana jest gradientem stężenia, zmiana ciśnienia na pewnej odległości nazywana jest gradientem ciśnienia, a zmiana temperatury na pewnej odległości nazywana jest gradientem temperatury. Słowo "dyfuzja" pochodzi od łacińskiego słowa "diffundere", co oznacza "rozprzestrzenianie się". Wyróżniającą cechą dyfuzji jest to, że powoduje mieszanie lub transport masy, bez konieczności ruchu luzem. W ten sposób dyfuzja nie powinna być mylona z konwekcją, ani też z advection, które są innymi zjawiskami transportowymi, które wykorzystują ruch masowy do przenoszenia cząstek z jednego miejsca do drugiego.
Definicja słowa diffusion w słowniku
Pierwsza definicja dyfuzji w słowniku jest aktem lub procesem dyfuzji lub rozproszenia; dyspersja. Inną definicją dyfuzji jest szczegółowość. Dyfuzja to również losowy ruch termiczny atomów, cząsteczek, skupisk atomów itp. W gazach, cieczach i niektórych ciałach stałych.
CYTATY ZE SŁOWEM «DIFFUSION»
Słynne cytaty i zdania ze słowem
diffusion.
We stand in the shadow of Jefferson who believed that a society founded upon the rule of law and liberty was dependent upon public education and the diffusion of knowledge.
Knowledge is not simply another commodity. On the contrary. Knowledge is never used up. It increases by diffusion and grows by dispersion.
Innumerable spirits and souls, when spread out through the same space, do not interfere with each other such that the diffusion of one would affect the diffusion of an infinity of others.
In a government whose distinguishing characteristic should be a diffusion and equalization of its benefits and burdens the advantage of individuals will be augmented at the expense of the community at large.
The diffusion of a universalist culture and of a pedagogy of peace appears more than ever to be the path that we must follow for the salvation of all nations on earth.
The progress of freedom depends more upon the maintenance of peace, the spread of commerce, and the diffusion of education, than upon the labors of cabinets and foreign offices.
When I came to the Senate in 1997, the world was being redefined by forces no single country controlled or understood. The implosion of the Soviet Union and a historic diffusion of economic and geopolitical power created new influences and established new global power centers - and new threats.
With today's fast films, you can light the way your eye sees the scene. You can abuse the film and create subtleties in contrast with light and exposure, diffusion and filters. That's what makes it an art.
In a large mass of muscle deprived of its circulation, the rate at which the recovery process can go on, after severe stimulation, depends on the rate at which oxygen can reach the fibres by diffusion.
The widespread diffusion of nuclear weapons would make many nations able, and in some cases also create the pressure, to aggravate an on-going crisis, or even touch off a war between two other powers for purposes of their own.
KSIĄŻKI POWIĄZANE ZE SŁOWEM «DIFFUSION»
Poznaj użycie słowa
diffusion w następujących pozycjach bibliograficznych Książki powiązane ze słowem
diffusion oraz krótkie ich fragmenty w celu przedstawienia kontekstu użycia w literaturze.
1
Diffusion in Solids: Fundamentals, Methods, Materials, ...
This book first gives an account of the central aspects of diffusion in solids, for which the necessary background is a course in solid state physics.
2
Diffusion MRI: From quantitative measurement to in-vivo ...
This book is the first comprehensive reference promoting the understanding of this rapidly evolving and powerful technology and providing the essential handbook for designing, analyzing or interpreting diffusion MR experiments.
Heidi Johansen-Berg, Timothy E.J. Behrens,
2009
3
Diffusion: Mass Transfer in Fluid Systems
The clearest coverage available of diffusion and mass transfer, which is a key part of the chemical engineering curriculum.
4
Diffusion of Innovations, 4th Edition
Since the first edition of this landmark book was published in 1962, Everett Rogers's name has become "virtually synonymous with the study of diffusion of innovations," according to Choice.
5
Diffusion-Weighted MR Imaging: Applications in the Body
The clinical applications of diffusion-weighted MR imaging (DW-MRI) in the body are rapidly evolving. This volume highlights state-of-the-art techniques for performing DW-MRI measurement in the body and addresses important practical issues.
Dow-Mu Koh, Harriet C. Thoeny,
2010
6
Diffusion and Ecological Problems: Modern Perspectives
This book is written with the primary intent of providing scientists, particularly physicists but also biologists, with some background of the mathematics and physics of diffusion, and how they can be applied to ecological problems.
Akira Okubo, Smon A. Levin,
2001
Examines various aspects of diffusion in polymers that are being quantitatively described and engineered--detailing the phenomenology of diffusion and outlining areas for future research.
This second edition is an updated and revised version of the original text.
9
Diffusion MRI: Theory, Methods, and Applications
The aim here is not to 'skim the surface' - but to dig deep into each topic - so that a thorough grounding is obtained.
Derek K. Jones, PhD,
2010
10
Self-
diffusion and Impurity
Diffusion in Pure Metals: ...
This reference book, containing all results on self-diffusion and impurity diffusion in pure metals with an indication of their reliability, will be useful to everyone in this field for the theory, fundamental research and industrial ...
Gerhard Neumann, Cornelis Tuijn,
2011
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «DIFFUSION»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
diffusion w wiadomościach.
Advances in modelling tumour growth - MedicalPhysicsWeb
To explore this idea, researchers from Vanderbilt University have used a reaction–diffusion model with parameters derived from quantitative ... «Medical Physics Web, Lip 15»
Drag on productivity growth can be fixed: OECD - Business - AsiaOne
To relaunch productivity and reduce inequality, governments should thus help firms harness the forces of knowledge diffusion more efficiently, ... «AsiaOne, Lip 15»
Bonelike 3-D silicon synthesized for potential use with medical devices
The laboratory system mimics the natural reaction-diffusion process that leads to symmetry-breaking forms in nature: the grooved and notched ... «Nanowerk, Lip 15»
Dolphin Brain Scans Show How Vision and Hearing Are Connected
In the new study, researchers used a technique called diffusion tension imaging (DTI) to scan the brains of a common dolphin and a pantropical ... «Gizmodo, Lip 15»
A Letter to Millennials: Don't Sleep Through the Revolution | TIME
That led to humility, because the diffusion of broadband was much slower than I thought, so I know that predicting the future is a humble man's ... «TIME, Lip 15»
US Federal Reserve Meeting Minutes for June 17 (Text) - Bloomberg
... couple of Districts' diffusion indexes turning up. Still, cutbacks in spending on drilling and mining equipment, slow demand for other business ... «Bloomberg, Lip 15»
COPD: Imaging Could Improve Treatment - Medscape
Instead, the useful measurements were hyperpolarized helium apparent diffusion coefficient (β, 0.34; P = .04), diffusing capacity of the lung for ... «Medscape, Lip 15»
NYSE trade on stocks halted due to technical glitch - Channel …
The diffusion of trades from the once-dominant NYSE to other exchanges blunted the impact of the outage, said Gregori Volokhine, president of ... «Channel News Asia, Lip 15»
Amtech to Exhibit at 2015 Intersolar North America Trade Show in …
Amtech's equipment includes diffusion, ALD and PECVD systems, ion implanters, and solder reflow systems. Amtech also supplies wafer ... «PR Newswire, Lip 15»
Ground Effect Vehicles: Adopting an Orphaned Technology | Stratfor
On one hand, the laws of physics, engineering or economics could impose very real limits on its development and diffusion. But a technology's ... «STRATFOR, Lip 15»