shadow-castingadj.n.

A. adj.

That casts a shadow or shadows.

ΘΚΠ

the world > matter > light > darkness or absence of light > intercepting or cutting off of light > [adjective] > casting a shadow

adumbrant1727

shadow-casting1859

1859 Ld. Tennyson Merlin & Vivien 479 in Idylls of King To him the wall That sunders ghosts and shadow-casting men Became a crystal.

1882 Encycl. Brit. XIV. 584/1 The shadow-casting object should be near the screen.

1904 W. de la Mare Henry Brocken 145 Laid embraced in the shadow-casting moonlight.

1953 Jrnl. Exper. Psychol. 45 206/1 The shadow-casting object is placed as close to the screen as possible, whereas the distance between the light source and the object is made large.

B. n.

1. Microscopy. A technique for enhancing an electron-microscope image by projecting a beam of small particles or atoms (usually of a heavy metal) on to the sample at a small angle to the horizontal, so as to form a deposit giving the appearance of shadows cast by sideways illumination.

ΘΚΠ

the world > physical sensation > sight and vision > optical skills and techniques > [noun] > shadow-casting

shadow-casting1944

shadowing1945

1944 Williams & Wyckoff in Jrnl. Appl. Physics XV. 712/2 Information was needed in our work other than that provided by stereoscopic photography. A procedure for measuring heights based on shadow-casting was accordingly developed to meet this need.

1947 Ann. Rev. Microbiol. 1 11 With the addition of the shadow casting technique, about eleven fibrils were clearly seen to compose the cilium of Paramecium.

1971 V. A. Phillips Mod. Metallogr. Techniques & Applic. v. 183 It is customary to enhance the contrast of replicas by shadow casting, that is, by evaporating a heavy metal from an angle to give shadow effects in the final electron micrograph, equivalent to oblique light illumination.

2. literal. The casting of shadows, esp. in Psychology as a technique of perceptual research. Also attributive.

ΘΚΠ

the mind > mental capacity > psychology > psychology of cognition > [noun] > casting of shadows for research

shadow-casting1957

1957 Psychol. Rev. 64 291/2 Previous shadow~casting devices..have not been constructed for this systematic purpose.

1971 Nature 3 Sept. 55/2 The geometric principles of shadow casting and the use of chromatic filters for dichoptic stimulation are established techniques.

Derivatives

as a back-formation.

ˈshadow-cast v. (transitive) to enhance (a microscopic image) by shadow-casting; to subject (a microscopic specimen) to shadow-casting.

ΘΚΠ

the world > physical sensation > sight and vision > optical skills and techniques > use optical skills and techniques [verb (transitive)] > shadow-cast

shadow1945

shadow-cast1971

1971 V. A. Phillips Mod. Metallogr. Techniques & Applic. v. 187 After being allowed to harden, it is dry-stripped and shadow cast.

1979 Nature 27 Sept. 287/2 Film samples were transferred to..electron microscope grids... Transferred films were shadowcast in the direction of compression with platinum-palladium at an angle of 10° before examination in a Siemens Elmiskop.

ˈshadow-cast adj.

ΘΚΠ

the world > physical sensation > sight and vision > optical skills and techniques > [adjective] > shadow-casting

shadow-cast1944

shadowed1944

1944 Jrnl. Appl. Physics 15 715/2 (caption) Example of a shadow-cast electron micrograph for the determination of the heights of objects.

shadow caster n. a device employed in perceptual research in order to cast shadows, esp. one for producing seemingly three-dimensional shadows.

ΘΚΠ

the mind > mental capacity > psychology > psychology of cognition > [noun] > casting of shadows for research > device for casting shadows

shadow caster1957

1957 Psychol. Rev. 64 291/2 Considering the mount and the screen as two geometrical planes, changes in the position of the mount will yield all possible perspective transformations of the shadow relative to the shadow caster.

1969 Vision Res. IX. 154 The principal advantage of the stereoscopic shadow-caster over other stereoscopic projection methods lies in its versatility in the study of binocular kinetic space perception.

1971 Nature 3 Sept. 55/2 To produce this effect, a stereoscopic shadow caster was used, in which two point sources slightly separated horizontally cast the shadows of three vertical rods on a rear-projection screen.

This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2019).

单词	shadow-casting
释义	shadow-castingadj.n. A. adj. That casts a shadow or shadows. ΘΚΠ the world > matter > light > darkness or absence of light > intercepting or cutting off of light > [adjective] > casting a shadow adumbrant1727 shadow-casting1859 1859 Ld. Tennyson Merlin & Vivien 479 in Idylls of King To him the wall That sunders ghosts and shadow-casting men Became a crystal. 1882 Encycl. Brit. XIV. 584/1 The shadow-casting object should be near the screen. 1904 W. de la Mare Henry Brocken 145 Laid embraced in the shadow-casting moonlight. 1953 Jrnl. Exper. Psychol. 45 206/1 The shadow-casting object is placed as close to the screen as possible, whereas the distance between the light source and the object is made large. B. n. 1. Microscopy. A technique for enhancing an electron-microscope image by projecting a beam of small particles or atoms (usually of a heavy metal) on to the sample at a small angle to the horizontal, so as to form a deposit giving the appearance of shadows cast by sideways illumination. ΘΚΠ the world > physical sensation > sight and vision > optical skills and techniques > [noun] > shadow-casting shadow-casting1944 shadowing1945 1944 Williams & Wyckoff in Jrnl. Appl. Physics XV. 712/2 Information was needed in our work other than that provided by stereoscopic photography. A procedure for measuring heights based on shadow-casting was accordingly developed to meet this need. 1947 Ann. Rev. Microbiol. 1 11 With the addition of the shadow casting technique, about eleven fibrils were clearly seen to compose the cilium of Paramecium. 1971 V. A. Phillips Mod. Metallogr. Techniques & Applic. v. 183 It is customary to enhance the contrast of replicas by shadow casting, that is, by evaporating a heavy metal from an angle to give shadow effects in the final electron micrograph, equivalent to oblique light illumination. 2. literal. The casting of shadows, esp. in Psychology as a technique of perceptual research. Also attributive. ΘΚΠ the mind > mental capacity > psychology > psychology of cognition > [noun] > casting of shadows for research shadow-casting1957 1957 Psychol. Rev. 64 291/2 Previous shadow~casting devices..have not been constructed for this systematic purpose. 1971 Nature 3 Sept. 55/2 The geometric principles of shadow casting and the use of chromatic filters for dichoptic stimulation are established techniques. Derivatives as a back-formation. ˈshadow-cast v. (transitive) to enhance (a microscopic image) by shadow-casting; to subject (a microscopic specimen) to shadow-casting. ΘΚΠ the world > physical sensation > sight and vision > optical skills and techniques > use optical skills and techniques [verb (transitive)] > shadow-cast shadow1945 shadow-cast1971 1971 V. A. Phillips Mod. Metallogr. Techniques & Applic. v. 187 After being allowed to harden, it is dry-stripped and shadow cast. 1979 Nature 27 Sept. 287/2 Film samples were transferred to..electron microscope grids... Transferred films were shadowcast in the direction of compression with platinum-palladium at an angle of 10° before examination in a Siemens Elmiskop. ˈshadow-cast adj. ΘΚΠ the world > physical sensation > sight and vision > optical skills and techniques > [adjective] > shadow-casting shadow-cast1944 shadowed1944 1944 Jrnl. Appl. Physics 15 715/2 (caption) Example of a shadow-cast electron micrograph for the determination of the heights of objects. shadow caster n. a device employed in perceptual research in order to cast shadows, esp. one for producing seemingly three-dimensional shadows. ΘΚΠ the mind > mental capacity > psychology > psychology of cognition > [noun] > casting of shadows for research > device for casting shadows shadow caster1957 1957 Psychol. Rev. 64 291/2 Considering the mount and the screen as two geometrical planes, changes in the position of the mount will yield all possible perspective transformations of the shadow relative to the shadow caster. 1969 Vision Res. IX. 154 The principal advantage of the stereoscopic shadow-caster over other stereoscopic projection methods lies in its versatility in the study of binocular kinetic space perception. 1971 Nature 3 Sept. 55/2 To produce this effect, a stereoscopic shadow caster was used, in which two point sources slightly separated horizontally cast the shadows of three vertical rods on a rear-projection screen. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2019). < adj.n.1859
随便看	volkskammer volkslied volkslieder volksmarch volksmarch club volksmarch trail volksmarch walk volksmarcher volksmarching volksmarching club volksmarching trail volksmarching walk volksoper volkspele volkspeler volkspolizei volkspolizist volksraad volksraads volkssport waggers waggery wagging wagging dance waggish