Analysis of laced Drugs
... current narcotics laws. Most street drugs are not pure substances but mixtures that consist of two or more components. In order to maximize profits or to widen the spectrum of activity, drugs are laced with all kinds of substances or cut with other drugs. As cutting agents usually substances are use ...
... current narcotics laws. Most street drugs are not pure substances but mixtures that consist of two or more components. In order to maximize profits or to widen the spectrum of activity, drugs are laced with all kinds of substances or cut with other drugs. As cutting agents usually substances are use ...
Spectral classification of blue supergiants in M31
... Here nl is the occupation density of the lower level, flu the oscillator strenght of the transition and φ(ν) a profile function with a maximum at the resonance frequency. Additionally, e and m are the charge and mass of the electron respectively and c is the speed of light. Under the simplyfying ass ...
... Here nl is the occupation density of the lower level, flu the oscillator strenght of the transition and φ(ν) a profile function with a maximum at the resonance frequency. Additionally, e and m are the charge and mass of the electron respectively and c is the speed of light. Under the simplyfying ass ...
Refraction
... 1. Place a block of Perspex on a piece of paper and draw around the block. 2. Shine a ray of light at the Perspex block and mark it on the paper. 3. Mark on the path of the light ray through the glass block. 4. Mark on the path of the light ray as it leaves the block. 5. What do you observe? ...
... 1. Place a block of Perspex on a piece of paper and draw around the block. 2. Shine a ray of light at the Perspex block and mark it on the paper. 3. Mark on the path of the light ray through the glass block. 4. Mark on the path of the light ray as it leaves the block. 5. What do you observe? ...
magnetic resonator
... * Dimension of the unit cell is less than the wavelength of excitation EM wave, thus the effective-media theorem can be applied. ...
... * Dimension of the unit cell is less than the wavelength of excitation EM wave, thus the effective-media theorem can be applied. ...
to - UCL Medical Physics and Biomedical Engineering
... optical excitation is used as it enables the large variation in the optical absorption and scattering properties of different tissue constituents to be exploited. Sources of naturally occurring absorption contrast include chromophores such as haemaglobin (and its various oxygenated states), melanin, ...
... optical excitation is used as it enables the large variation in the optical absorption and scattering properties of different tissue constituents to be exploited. Sources of naturally occurring absorption contrast include chromophores such as haemaglobin (and its various oxygenated states), melanin, ...
LIM Transient Explorer
... Some periods of eclipse (loss of power) inevitable unless orbit is above 1400 km Stray light from the Earth could increase background, lower sensitivity, in parts of orbit at different times of year. The higher the orbit, the easier to minimize problem: needed baffles can be shorter ...
... Some periods of eclipse (loss of power) inevitable unless orbit is above 1400 km Stray light from the Earth could increase background, lower sensitivity, in parts of orbit at different times of year. The higher the orbit, the easier to minimize problem: needed baffles can be shorter ...
Poisson’s spot with molecules Please share
... The two sets of model calculations shown in Fig. 4 correspond to a disk with 共continuous line兲 and without 共dashed lines兲 edge roughness, revealing its effect on the Poissonspot intensity. At the closest distance considerable dampening may be noted while at the farthest position the difference to an ...
... The two sets of model calculations shown in Fig. 4 correspond to a disk with 共continuous line兲 and without 共dashed lines兲 edge roughness, revealing its effect on the Poissonspot intensity. At the closest distance considerable dampening may be noted while at the farthest position the difference to an ...
WAVE PLATES
... mirrors. There is no change in the polarization state of the reflection if the beam is incident normally on the mirrors, or if the plane of polarization lies in or normal to the plane of incidence. However, if the polarization direction makes some angle with the plane of incidence, then the reflecti ...
... mirrors. There is no change in the polarization state of the reflection if the beam is incident normally on the mirrors, or if the plane of polarization lies in or normal to the plane of incidence. However, if the polarization direction makes some angle with the plane of incidence, then the reflecti ...
Quantifying Temperature Changes in Tissue
... A phantom with optical properties similar to biological tissue was created in order to observe the envelope statistics of the OCT signal with respect to temperature and to measure Brownian motion within the sample. The colloidal suspension phantom was fabricated with polystyrene microspheres (Polysc ...
... A phantom with optical properties similar to biological tissue was created in order to observe the envelope statistics of the OCT signal with respect to temperature and to measure Brownian motion within the sample. The colloidal suspension phantom was fabricated with polystyrene microspheres (Polysc ...
Chapter 22: Reflection and Refraction of Light
... while v is the speed of the light in the refracting medium also measured in meters per second. o and n is the unitless index of refraction. Since we use the speed of light in a vacuum as our baseline, the lowest index of refraction exists in a vacuum as n = 1.000. Any other refractive medium will ha ...
... while v is the speed of the light in the refracting medium also measured in meters per second. o and n is the unitless index of refraction. Since we use the speed of light in a vacuum as our baseline, the lowest index of refraction exists in a vacuum as n = 1.000. Any other refractive medium will ha ...
PDF only
... For atoms with several electrons the problem of the mixed symmetries is even more intricate than for hydrogen because different electrons feel very different Coulomb forces, i.e. possess different single-particle energies, and the domain of the intermediate fields, therefore, appears to be the sum o ...
... For atoms with several electrons the problem of the mixed symmetries is even more intricate than for hydrogen because different electrons feel very different Coulomb forces, i.e. possess different single-particle energies, and the domain of the intermediate fields, therefore, appears to be the sum o ...
DOC - math for college
... reflected by an elemental area (dA) is proportional to the cosine of the angle between the light source direction and the surface normal The image brightness of a Lambertian surface is dependent on the local surface orientation with respect to the light source. Since the point light source is far aw ...
... reflected by an elemental area (dA) is proportional to the cosine of the angle between the light source direction and the surface normal The image brightness of a Lambertian surface is dependent on the local surface orientation with respect to the light source. Since the point light source is far aw ...
Optical Data Storage.pdf
... excited 2-photon absorption, leading to writing photochemistry. Another approach to improving media sensitivity has been to employ resonant two-photon absorption. Nonresonant two-photon absorption (as is generally used) is weak since in order for excitation to take place, the two exciting photons mu ...
... excited 2-photon absorption, leading to writing photochemistry. Another approach to improving media sensitivity has been to employ resonant two-photon absorption. Nonresonant two-photon absorption (as is generally used) is weak since in order for excitation to take place, the two exciting photons mu ...
Geometrical and diffraction optics
... Chromatic Aberration Since the refractive index n = f(LJ), the focal length of a lens = f(LJ) and different wavelengths have different foci. (Mirrors are usually achromatic). ...
... Chromatic Aberration Since the refractive index n = f(LJ), the focal length of a lens = f(LJ) and different wavelengths have different foci. (Mirrors are usually achromatic). ...
What is light?
... Science of Radio Astronomy Radio astronomy reveals several features, not visible at other wavelengths: • Neutral hydrogen clouds (which don’t emit any visible light), containing ~ 90 % of all the atoms in the Universe • Molecules (often located in dense clouds, where visible light is completely abs ...
... Science of Radio Astronomy Radio astronomy reveals several features, not visible at other wavelengths: • Neutral hydrogen clouds (which don’t emit any visible light), containing ~ 90 % of all the atoms in the Universe • Molecules (often located in dense clouds, where visible light is completely abs ...
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A History of Imaging
... cannot be recovered without a priori information—for example, aliased frequencies and wavefront phase. To understand completely the impact of electronic detection of light on imaging, consider that spatial resolution in a film-based imaging system is limited solely by the optics. Film is merely a det ...
... cannot be recovered without a priori information—for example, aliased frequencies and wavefront phase. To understand completely the impact of electronic detection of light on imaging, consider that spatial resolution in a film-based imaging system is limited solely by the optics. Film is merely a det ...