CHE SIGNIFICA ULTRAMICROSCOPE IN INGLESE
ultramicroscope
Un ultramicroscopio è un microscopio con un sistema di illuminazione che permette di vedere piccole particelle. Quando il diametro di una particella è sotto o vicino alla lunghezza d'onda della luce visibile, la particella non può essere vista in un microscopio leggero con il solito metodo di illuminazione. Il sistema ultramicroscopico è basato sulla diffusione della luce, non sulla riflessione leggera. Nel sistema, le particelle da osservare sono disperse in un colloide liquido o di gas. Il colloide è collocato in un involucro chiaro e assorbente e illuminato con un fascio convergente di luce intensa che entra da un lato. La luce che colpisce le particelle di colloidi sarà dispersa. Nelle discussioni sulla diffusione della luce, il fascio convergente viene chiamato "cono Tyndall". La scena viene vista attraverso un ordinario microscopio posto all'indietro alla direzione del raggio luminoso. Sotto il microscopio, le singole particelle appariranno come piccoli punti fuzzy di luce che si muovono irregolarmente. I punti sono intrinsecamente fuzzy perché la dispersione della luce produce immagini più fiabette rispetto alla riflessione della luce. Le particelle sono in movimento Brownian nella maggior parte dei tipi di colloidi liquidi e di gas, che provoca il movimento dei punti.
definizione di ultramicroscope nel dizionario inglese
La definizione di ultramicroscopio nel dizionario è un microscopio usato per studiare i colloidi, in cui il campione è fortemente illuminato dal lato e le particelle colloidali sono viste come punti luminosi su uno sfondo scuro. Chiamato anche: microscopio a campo oscuro.
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10 LIBRI IN INGLESE ASSOCIATI CON «ULTRAMICROSCOPE»
Scopri l'uso di
ultramicroscope nella seguente selezione bibliografica. Libri associati con
ultramicroscope e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Scientific Credibility and Technical Standards in 19th and ...
This essay has sought to understand the scientific, technological, industrial, and
economic context in which the ultramicroscope was created and how that context
helped shape scientific knowledge, which in turn helped reshape the context ...
2
Instruments of Science: An Historical Encyclopedia
"Atomic Force Microscopy." Pbysics Today (October 1990l: 23-30.
Wickramasinghe, H.K. "Scanned Probe Microscopes." Scientific American 261 (
October 1989l: 98-105. Mieroseope, Ultra- The ultramicroscope is used to
examine particles of ...
Robert Bud, Deborah Jean Warner,
1998
vial served to hold a gross specimen of coagulating plasma in which the time of
appearance of the transparent and opaque stages could be compared with that
of the appearance of fibrin needles in the ultramicroscope cell. However, as it
was ...
4
Nobel Laureates in Chemistry, 1901-1992
The ultramicroscope permitted particles to be viewed that had only 1/100,000 the
volume of the smallest particles that had hitherto been seen. By counting the
number of colloidal gold particles in a small volume of a dilute solution of known
...
5
Stereo-
Ultramicroscope For Studying Sub-Micron Aerosols
A stereo-ultramicroscope is described, designed for studying the mechanical and electrical state of sub-micron aerosols.
DEFENSE RESEARCH ESTABLISHMENT OTTAWA (Ont.), L. G. Wilson, P. Cavanagh,
1968
6
Colloids and the
Ultramicroscope, a Manual of Colloid ...
Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
7
Particle size analysis in Industrial Hygiene
Another method utilizing the ultramicroscope principle is to measure the
amplitude of oscillation of airborne particles in an alternating electric49 or sonic
field50 of low frequency by photographing their paths in the cell of the
ultramicroscope.
8
The Rise and Decline of Colloid Science in North America, ...
Siedentopf also developed the cardioid dark field condenser in 1 9 1 0,45 which
further improved the ultramicroscope by increasing the possible cell size without
giving up the advantages that the condenser-type ultramicroscope had over the ...
9
Chemistry Vol (1 and 2)
Brownian Movement When a colloidal solution is examined by ultramicroscope,
the colloid particles appear as minute point of light in a state of constant rapid zig-
zag motion. This zig-zag motion by a colloidal particles (in the dispesion ...
AK Srivastava and PC Jain
10
Elementary chemical microscopy
A well- equipped ultramicroscope must therefore include a device for the
projecting of polarized light into the preparations and an analyzer for the study of
the light rays forming the image in the microscope. But it must be remembered
that even ...
Émile Monnin Chamot,
1916
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «ULTRAMICROSCOPE»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
ultramicroscope nel contesto delle seguenti notizie.
Actus Blu-Ray/DVD « Planète corps » : plus fort que « Le Voyage …
Pourtant l'exploration que nous propose Planète Corps est bien autrement ahurissante : véritable safari à l'ultramicroscope, le film nous convie à visiter notre ... «ON Magazine, giu 15»
LaVision BioTec announces the first International Users' Meeting on …
The first LaVision BioTec UltraMicroscope User Meeting will take place at the Max Planck Institute for Molecular Biomedicine in Münster, 21-22 September. «News-Medical.net, mag 15»
LaVision BioTec reports on the research work of the Milan-based …
UltraMicroscope II utilizes six thin light sheets to excite samples with fluorescence light which is detected with a sCMOS-equipped microscope mounted ... «News-Medical.net, mag 15»
LaVision BioTec introduce new products for their UltraMicroscope …
LaVision BioTec, developers of advanced microscopy solutions for the life sciences, announce they will introduce new products for their UltraMicroscope and ... «News-Medical.net, nov 14»
LaVision BioTec report on users of light sheet microscopy in the …
LaVision BioTec, developers of advanced microscopy solutions for the life sciences, report on users of their Ultramicroscope Light Sheet Fluorescence ... «News-Medical.net, ott 14»
MULTIPHOTON MICROSCOPY/SUPER-RESOLUTION IMAGING …
LaVision BioTec's (Bielefed, Germany) Ultramicroscope provides sub-cellular resolution for samples even a centimeter in size. Based on a technique originally ... «BioOptics World, ago 14»
Trying to See Apple From a Different Angle
The problem, Mr. Moskowitz says, is one that many companies would envy: “It's so big that its success has put them under an ultramicroscope.” For his part, Mr. «New York Times, feb 14»
FLUORESCENCE MICROSCOPY/CELL BIOLOGY: The planar truth …
In addition to the Lightsheet Z.1, scientists can consider the Ultramicroscope from LaVision BioTec. Uwe Schröer, product manager at LaVision BioTec, ... «BioOptics World, gen 14»
Laser Optics Enable View Inside a Fly's Eye
The technology and the optics in the ultramicroscope device were developed by Saideh Saghafi of the Technical University of Vienna. She turned a laser beam ... «Photonics.com, dic 12»
Video of the inside of a fly's eye: Scientists develop laser optics …
Fine venules, thin branches of nerve tracts - thanks to the ultramicroscope developed at the Bioelectronics Department of the Institute for Solid-State Electronics ... «Phys.Org, dic 12»