reflection problem
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Reflection seismology — (or seismic reflection) is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth s subsurface from reflected seismic waves. The method requires a controlled seismic source of energy,… … Wikipedia
Problem-based learning — (PBL) is a student centered instructional strategy in which students collaboratively solve problems and reflect on their experiences. It was pioneered and used extensively at McMaster University, Hamilton, Ontario, Canada. Characteristics of PBL… … Wikipedia
Problem of evil — Part of a series on God General conceptions … Wikipedia
Signal reflection — occurs when a signal is transmitted along a transmission medium, such as a copper cable or an optical fiber, some of the signal power may be reflected back to its origin rather than being carried all the way along the cable to the far end. This… … Wikipedia
Flatness problem — The local geometry of the universe is determined by whether the relative density Ω is less than, equal to or greater than 1. From top to bottom: a spherical universe with greater than critical density (Ω>1, k>0); a hyperbolic, underdense… … Wikipedia
Napkin folding problem — The napkin folding problem in geometry explores whether folding a square or a rectangular napkin can increase its perimeter. The problem is known under several names, including the Margulis napkin problem, suggesting it is due to Grigory Margulis … Wikipedia
Phase problem — The phase problem is the name given to the problem of loss of information (the phase) from a physical measurement. The name itself comes from the field of x ray crystallography, where the phase problem has to be solved for the determination of a… … Wikipedia
Shephard's problem — In mathematics, Shephard s problem is the following geometrical question: if K and L are centrally symmetric convex bodies in n dimensional Euclidean space such that whenever K and L are projected onto a hyperplane, the volume of the projection… … Wikipedia
Total internal reflection fluorescence microscope — (TIRFM) diagram 1. Specimen 2. Evanescent wave range 3. Cover slip 4. Immersion oil 5. Objective 6. Emission beam (signal) 7. Excitation beam ] 1. Objective 2. Emission beam (signal) 3. Immersion oil 4. Cover slip 5. Specimen 6. Evanescent wave… … Wikipedia
Charles F. Manski — Charles Frederick Manski, Professor of Economics at Northwestern University, is an econometrician in the realm of Rational choice theory, an innovator in the arena of identification.[1] Manski’s research spans econometrics, judgement and decision … Wikipedia
Gonioscopy — describes the use of a goniolens (also known as a gonioscope) in conjunction with a slit lamp or operating microscope to gain a view of the iridocorneal angle, or the anatomical angle formed between the eye s cornea and iris. The importance of… … Wikipedia
