A promising approach is to alternate the sign of dispersion in segments of different lengths across the propagation to counteract both types of SCG stagnation mechanisms of spectral generation. 22,23 The bandwidth increase is then on-going with increasing number of alternating dispersion segments, terminating only if waveguide losses startWeb
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I am trying to understand what "overdispersion" means in statistics. Based on the Wikipedia page, "overdispersion" is defined as follows : "In statistics, overdispersion is the presence of greater variability (statistical dispersion) in a data set than would be expected based on a given statistical model.However, I have heard other interpretations …Web
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Standard deviation is generally the preferred method of calculating Dispersion. This is a measure of the amount of dispersion in a given set of data. If the data has a low standard deviation, that means that the values are closer to the mean of the set, while a high standard deviation means they're more spread out from the mean of the set.Web
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Dispersion can be measured in a number of ways: Range – The range of a dataset gives the difference between the largest and smallest value. Therefore, the range only takes the two most extreme values into account and tells nothing about what falls in the middle. Range = (Max. Value – Min. Value)Web
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Authors demonstrate a dispersion engineered set of eight nanostructures capable of providing 0 to 2π full-phase coverage. Their design offers a broadband and polarization-insensitive 90% relative ...Web
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The zero dispersion mirror shows a significantly reduced dispersion, while the hyper-dispersive one shows a highly enhanced dispersion. The positive mirror shows the …Web
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Pigment dispersion syndrome (PDS) is characterized by the dispersion of iris pigments from the iris pigment epithelium and their deposition at the back of the corneal endothelium and in the anterior segment.[1] PDS was first defined by Friedrich E. Krukenberg in 1899 as a vertical pigmentary line in the endothelium. Initially, PDS was …Web
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In wave context, dispersion is the phenomenon in which waves of different frequencies (or wavelengths) travel at different …Web
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The contribution of airline cost to price dispersion is limited. This paper examines the price dispersion among China's "Big Three", namely, Air China, China Eastern and China Southern in the presence of high-speed rail (HSR). It has been found that HSR is positively and significantly associated with airline price dispersion on the …Web
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Pigment dispersion syndrome is a condition where pigment from the back of the iris (the colored part of the eye) is released and becomes trapped in the drainage system of the eye. The pigment could block the drain which could, in turn, lead to an increase in eye pressure. The features of pigment dispersion syndrome, such as excessive pigment in ...Web
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Resonator dispersion was calculated via an iterative approach 13. Figure 1a,b use a resonator thickness of 8 μm, and Fig. 1c,d use outer wedge heights of 3 μm and 5 μm for the angle ordering 45 ...Web
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We call this separation of light, dispersion. So, why does dispersion happen? The reason for dispersion is that the index of refraction for water and most …Web
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ITU G.653 is a dispersion-shifted fiber (DSF), designed to minimize chromatic dispersion in the 1550 nm window with zero dispersion between 1525 nm and 1575 nm. But this type of fiber has several drawbacks, such as higher polarization mode dispersion than ITU G.652, and a high Four Wave Mixing risk, rendering DWDM practically impossible.Web
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We investigated the effect of higher order dispersion on ultrafast photoionisation with Classical Trajectory Monte Carlo (CTMC) method for hydrogen and krypton atoms. In our calculations we used ...Web
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Measures of dispersion are non-negative real numbers that help to gauge the spread of data about a central value. These measures help to determine how stretched or squeezed the given data is. There are five most commonly used measures of dispersion. These are range, variance, standard deviation, mean deviation, and quartile deviation.Web
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Polarization mode dispersion is the dependence of light's propagation characteristics in a medium on polarization state, which can be relevant in high data rate single-mode fiber systems. All three types of dispersion may cause temporal broadening or compression of ultrashort pulses in free space or optical fibers, potentially causing ...Web
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The sign of θ m is positive if it is measured counter-clockwise from the normal of the grating surface. The angular dispersion derived from Eq. ... Due to the high dispersion of …Web
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Crossovers and dispersion. A speaker's crossover can have a huge effect on dispersion. Consider a two-way speaker with a 6-inch woofer and a 1-inch tweeter. Using the formula from above, we can calculate that the woofer will get beamy above about 2.3 kHz. If the crossover is at 3 kHz, the dispersion will narrow between 2.3 and 3 kHz.Web
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The iris is the colored part of the eye. Pigment dispersion syndrome (PDS) occurs when pigment rubs off the back of the iris and floats freely in the eye. Pigment pieces can block the eye's ...Web
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The high OSNR per channel is enabled by the high internal conversion efficiency of the comb, which reaches above 20%–in line with previous observations 38. Using off-chip pump powers below 400 ...Web
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Yes, that is true, and is exactly why these are called dispersion curves. In wave context, dispersion is the phenomenon in which waves of different frequencies (or wavelengths) travel at different …Web
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Dispersion in optical glasses is typically characterized by index of refraction values at three standard wavelengths. Note that a low v value implies high dispersion. Example of …Web
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In order to investigate the waveguide dispersion with polymer patterning, we show the measured dispersion of the resonators with 0%, 25%, 50%, and of coverage ratios within the same chip in ...Web
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probability - Meaning of "Overdispersion" in Statistics - Cross Validated I am trying to understand what "overdispersion" means in statistics. Based on the …Web
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DISPERSION definition: 1. → disperse 2. the separation of light into different colours 3. → disperse. Learn more.Web
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Analysis of spectral properties at the central node of various three stage schemes in conjunction with implicit Lele scheme [] and explicit central CD6 is carried out in Figs. 7 and 8 respectivelypared to two stage schemes a significant improvement in the region of (pm 0.001%) tolerance in the scaled values of numerical phase and group …Web
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18, 22, 26, 30, 40, 45, 46, 60, 75, 80. Next, identify the minimum and maximum of the data set. The minimum is 18 and the maximum is 80. Then, subtract the minimum from the maximum to find the range. 80−18=62. The answer is 62. This shows there is a wide range of people who attend the movies in that data set.Web
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Sign‐alternated dispersion waveguides drastically increase the efficiency of on‐chip spectral generation to unprecedented low energies. Fully on‐chip supercontinuum sources are now possible ...Web
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We analyze the velocity dispersions of individual H i and CO profiles in a number of nearby galaxies from the high-resolution HERACLES CO and THINGS H i surveys. Focusing on regions with bright CO emission, we find a CO dispersion value = 7.3 ± 1.7 km s −1.The corresponding H i dispersion = 11.7 ± 2.3 km s −1, yielding a mean …Web
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In a statistical sense, dispersion has two meanings: first it measures the variation of the items among themselves, and second, it measures the variation around the average. If the difference between the value and average is high, then dispersion will be high. Otherwise it will be low. According to Dr. Bowley, "dispersion is the measure of ...Web
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This activity describes the evaluations, diagnosis, and management of pigment dispersion syndrome (PDS) and pigmentary glaucoma (PG). It describes the important clinical signs and symptoms in patients at risk and how to follow patients over time. To avoid irreversible glaucomatous optic neuropathy and visual field progression, …Web
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Dispersion means the distance of the scattered data from the central value of the data. It gives information regarding the volatility or non-volatility nature of the data set. More distance from the central point represents a more …Web
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Frequency dispersion of high-k dielectrics was observed and classified into two parts: extrinsic cause and intrinsic cause. Frequency dependence of dielectric constant (dielectric relaxation), that is the intrinsic frequency dispersion, could not be characterized before considering the effects of extrinsic frequency dispersion. Several mathematical …Web
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Lots of induced dipoles can create attraction between molecules, called London dispersion forces. London dispersion forces are always present, but they vary widely in strength. In light atoms, they are very small, because there aren't many electrons and they are held tightly. In large atoms, they can be very big, because the atoms are …Web
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It includes range, standard deviation, quartile deviation, etc. The types of absolute measures of dispersion are: Range: It is simply the difference between the maximum value and the minimum value given in a data set. Example: 1, 3,5, 6, 7 => Range = 7 -1= 6. Variance: Deduct the mean from each data in the set, square each of them and add each ...Web
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Chromatic Aberration. One of the most frequently called-out optical anomalies, and one of the main reasons new lens development continues to occur, chromatic aberration describes the way a lens is unable to focus various wavelengths of color at the same point. Think back to your physics classes and recall the color spectrum …Web
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high bandwidth efficiency reveals itself by the low pulse energy threshold, needed for the 1/e width to exceed the sign-inversion dispersion bandwidth (marked in yellow in Figure 2a) at 34 pJ ( 24 pJ measured after the output lens). At the threshold pulse energy at 34 pJ, the bandwidth spans from approx. 1500nm to 2450nm, i.e., 950 nm.Web
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Figure 16.66.1 16.66. 1: Green sphene from Madagascar. Sphene is the older name of this mineral which refers to its crystal shape. Titanite is the universal name amongst mineralogists today and refers to its content of titanium. Greenovite is the name given to red or pink sphene.Web
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