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radiative transfer, the two-stream approximation is a discrete ordinate approximation in which radiation propagating along only two discrete directions is
Two-stream_approximation
Modelling the appearance of paint coatings
involves just two paint-dependent constants.[citation needed] In their article, differential equations are developed using a two-stream approximation for light
Kubelka–Munk_theory
Energy transfer in the form of electromagnetic radiation
radiative transfer. The Eddington approximation is distinct from the two-stream approximation. The two-stream approximation assumes that the intensity is
Radiative_transfer
Technique in numerical linear algebra
In mathematics, low-rank approximation refers to the process of approximating a given matrix by a matrix of lower rank. More precisely, it is a minimization
Low-rank_approximation
Anglo-German physicist (1851–1934)
emission lines in stellar spectra. This was the first use of the two-stream approximation that underpins the treatment of radiative transfer in virtually
Arthur_Schuster
Mathematical symbol for "less than"
file descriptor. The double less-than sign, <<, may be used for an approximation of the much-less-than sign (≪) or of the opening guillemet («). ASCII
Less-than_sign
Family of iterative methods
Stochastic approximation methods are a family of iterative methods typically used for root-finding problems or for optimization problems. The recursive
Stochastic_approximation
Spectroscopy technique
layers. The treatments are generally those consistent with a two-flux or two-stream approximation. Some of the treatments require all the scattered light,
Diffuse reflectance spectroscopy
Diffuse_reflectance_spectroscopy
Mathematical symbol for "greater than"
likely Harriot developed the two symbols from this symbol. The greater-than sign is sometimes used for an approximation of the closing angle bracket,
Greater-than_sign
Class of algorithms operating on data streams
less approximation-value ε requires more t). KMV algorithm keeps only t-smallest hash values in the hash space. After all the m values of stream have
Streaming_algorithm
Form of cryptanalysis
affine approximations to the action of a cipher. Attacks have been developed for block ciphers and stream ciphers. Linear cryptanalysis is one of the two most
Linear_cryptanalysis
Type of artificial neural network
to generate a convenient prototype data stream. The logistic map can be used to explore function approximation, time series prediction, and control theory
Radial_basis_function_network
Matrix decomposition
polar decomposition, and is a common means for implementing low-rank approximation for matrices. Specifically, the singular value decomposition of an m×n
Singular_value_decomposition
Statistical method of dividing data into equal-sized intervals for analysis
Zohar Karnin; Kevin Lang; Edo Liberty (2016). "Optimal Quantile Approximation in Streams". arXiv:1603.05346 [cs.DS]. Tierney, Luke (1983). "A space-efficient
Quantile
Describes approximate behavior of a function
Bachmann–Landau notation. The letter O stands for Ordnung, that is, the order of approximation. In computer science, big O notation is used to classify algorithms
Big_O_notation
Lossless digital audio coding format
mathematical approximation of the block, either by fitting a simple polynomial, or through general linear predictive coding. A description of the approximation, which
FLAC
Form of cryptanalysis
characteristic have a linear approximation defined, and we expect that for each chosen plaintext pair, the probability of the linear approximation holding for one
Differential-linear_attack
Approximate distinct counting algorithm
analyze the complexity, the data streaming (ϵ,δ) model is used, which analyzes the space necessary to get a 1±ϵ approximation with a fixed success probability
HyperLogLog
Classical solution for inviscid, incompressible flow around a cylinder
1} , where c is the speed of sound. Then the solution to first-order approximation in terms of the velocity potential is ϕ ( r , θ ) = U r ( 1 − a 2 r
Potential flow around a circular cylinder
Potential_flow_around_a_circular_cylinder
Probabilistic data structure in computer science
sketch typically has a sublinear number of cells, related to the desired approximation quality of the sketch, while a counting Bloom filter is more typically
Count–min_sketch
Economic theory
Relative Purchasing Power Parity. Using the common first-order Taylor approximation to the logarithm log ( x ) ≈ x − 1 {\displaystyle \log(x)\approx x-1}
Relative purchasing power parity
Relative_purchasing_power_parity
Method of a dimension reduction
𝐄[Ci⋅si(q)]=n(q) still holds, so averaging across the i range will tighten the approximation; the previous construct still has a major deficiency: if a
Count_sketch
Current worth of a future sum discounted to today
the mathematics of continuous functions can be used as an approximation.) There are mainly two flavors of Present Value. Whenever there will be uncertainties
Present_value
Optimization theory in computing
recognition among the research community. When focused on high quality of approximation and low probability of failure, Nelson and Yu showed that a very slight
Approximate counting algorithm
Approximate_counting_algorithm
Index of articles associated with the same name
either: "linear" (a polynomial of degree at most one), as in first-order approximation and other calculus uses, where it is contrasted with "polynomials of
First-order
Dimensionless quantity in fluid dynamic
of the presence of a transonic regime around flight (free stream) M = 1 where approximations of the Navier-Stokes equations used for subsonic design no
Mach_number
Relation of flow speed to wall distance
the height of the flow), though it is a good approximation for the entire velocity profile of natural streams. The logarithmic law of the wall is a self
Law_of_the_wall
Concept in fluid mechanics
Hele-Shaw flows and thus the research of these flows is of importance. Approximation to Hele-Shaw flow is specifically important to micro-flows. This is
Hele-Shaw_flow
Formulae for viscous and incompressible fluid flow at small Reynolds numbers
Stokes' calculations, to solve the problem known as Stokes' paradox. His approximation leads to an improvement to Stokes' calculations. The Oseen equations
Oseen_equations
radiative transfer equation, applying the above relation and the Two-Stream Limit approximation leads to information about each of the higher moments in cos
Grey_atmosphere
Any large system of circulating ocean surface currents
Caribbean they join the warm waters in the Gulf of Mexico and form the Gulf Stream, a western boundary current. This current then heads north and east towards
Ocean_gyre
2026 film by Lance Oppenheim
searched for houses within the New Orleans area that resembled a close approximation of contemporary photos taken of Hansen's real 2006 residence in Stamford
Primetime_(film)
Machine that converts the energy of flowing or falling water into useful forms of power
wheels are fed by water from a mill pond, which is formed when a flowing stream is dammed. All channel for the water flowing to or from a water wheel is
Water_wheel
Mathematical statistics distance measure
excess surprisal from using the approximation Q instead of P when the actual is P. While it is a measure of how different two distributions are and is thus
Kullback–Leibler_divergence
Concept in fluid dynamics
implies increasing rarefaction, and gradual failure of the continuum approximation. The first-order expression, which is often used to model fluid slip
No-slip_condition
Energy of a moving physical body
energy is the foot-pound. In relativistic mechanics, 12mv2 is a good approximation of kinetic energy only when v is much less than the speed of light.
Kinetic_energy
River in northern France
divided into two parts. The first segment ranges from the river's source is in the Artois Hills to Saint-Omer to form a small chalk stream, similar to
Aa_(France)
Japanese manga series by Jinushi
her relationship with Sasaki). Enjoys romance novels, and real-life approximations thereof. She's supportive of Yamada and Sasaki's relationship, although
Smoking Behind the Supermarket with You
Smoking_Behind_the_Supermarket_with_You
Computer graphics term
see that the first bit plane gives the roughest but the most critical approximation of values of a medium, and the higher the number of the bit plane, the
Bit_plane
Chinese mathematician-astronomer (429–500)
we know of today. deriving two approximations of pi, (3.1415926535897932...) which held as the most accurate approximation for π for over nine hundred
Zu_Chongzhi
Series of language models developed by DeepSeek
series. They changed the standard attention mechanism by a low-rank approximation called multi-head latent attention (MLA), and used the previously published
DeepSeek_(AI)
Phenomenon in physics
{\displaystyle \delta =(2\nu /\omega )^{1/2}} . Rayleigh streaming is best visualized in the approximation λ ≫ l ≫ δ . {\displaystyle \lambda \gg l\gg \delta
Acoustic_streaming
System that converts an analog signal into a digital signal
(less significant) SAR bit is set for the next approximation. At each step in this process, the approximation value stored in the SAR resolves one ADC output
Analog-to-digital_converter
Velocity field as the gradient of a scalar function
is characterized by an irrotational velocity field, which is a valid approximation for several applications. The irrotationality of a potential flow is
Potential_flow
offensive: Niggerhead, Nigger Hill, and Nigger Stream became Tawhai Hill, Kanuka Hills, and Pukio Stream respectively. Numerous place names in the United
Place names considered unusual
Place_names_considered_unusual
Vast empty spaces between filaments with few or no galaxies
galaxy in a catalog as its target and then uses the Nearest Neighbor Approximation to calculate the cosmic density in the region contained in a spherical
Void_(astronomy)
Field of knowledge
and spaces that contain them), analysis (the quantitative study of approximation and convergence), and set theory (presently used as a foundation for
Mathematics
is arithmetic using formulaic representation of real numbers as an approximation to support a trade-off between range and precision. For this reason
Glossary_of_computer_science
Concept in hydrology
relatively simple approximations based on simple flume experiments are commonly used to predict transport. Another way to estimate stream competency is to
Stream_competency
Algorithm for caching data
due to its high overhead; Clock, an approximation of LRU, is commonly used instead. Clock-Pro is an approximation of LIRS for low-cost implementation
Cache_replacement_policies
1988 film by Hayao Miyazaki
"supposedly the forest keeper, but that's only a half-baked idea, a rough approximation". Art director Kazuo Oga was drawn to the film when Hayao Miyazaki showed
My_Neighbor_Totoro
Māori name for New Zealand
Zealand English speakers pronounce the word with various degrees of approximation to the original Māori pronunciation, from /ˌɑːəteɪəˈrɔːə/ [ˌɐːɘtæeɘˈɹoːɘ]
Aotearoa
Type of program in computer graphics
video stream after it has been rasterized. OpenGL 4.0 and Direct3D 11 introduced a new shader class called a tessellation shader. It added two new shader
Shader
Metric used to measure signal quality
this context it is used as a full reference metric, comparing a noisy approximation against the known noise-free source image. PSNR is most easily defined
Peak_signal-to-noise_ratio
Exponent of a power of two
n is a power of two and the tree is a complete binary tree. Relatedly, the Strahler number of a river system with n tributary streams is at most log2 n
Binary_logarithm
1998 thriller film by Darren Aronofsky
park and asks him to do several calculations, including 748 ÷ 238 (an approximation for pi). Max smiles and says that he does not know the answer, seemingly
Pi_(film)
Ukrainian-born Brazilian writer (1920–1977)
English in 1978 as The Stream of Life, with a new translation by Stefan Tobler published in 2012. In 1974, Lispector published two books of stories, Onde
Clarice_Lispector
Mass of a stationary electron
calculate a first approximation to Ar(e), 5.4863037178×10−4. This approximate value is then used to calculate a first approximation to Ar(12C6+), knowing
Electron_mass
Two-dimensional cellular automaton
variations. For example, the automaton B1/S12 generates four very close approximations to the Sierpinski triangle when applied to a single live cell. The Sierpinski
Conway's_Game_of_Life
Entropy coding methods
{\displaystyle p\in (0,1)} , are called combinations. Using Stirling's approximation we get their asymptotic number being ( n p n ) ≈ 2 n h ( p ) for large
Asymmetric_numeral_systems
Signal with equal energy per octave
streams[j] = random() output.append(sum(streams)) Each stream is updated at intervals that are powers of two, ensuring that slower-changing streams contribute
Pink_noise
Change in sea level due to gravity
perspective of a static system (equilibrium theory), that provided an approximation that described the tides that would occur in a non-inertial ocean evenly
Tide
Type of shift register in computing
the seed, and because the operation of the register is deterministic, the stream of values produced by the register is completely determined by its current
Linear-feedback shift register
Linear-feedback_shift_register
Noise pattern on digital imaging sensors
single value measured at e.g. 50% saturation level, implying a linear approximation of the not perfectly linear photo response non-linearity (PRNL). Often
Fixed-pattern_noise
1977 radio signal detected as part of SETI
(Report). Defense Intelligence Agency. Caballero, Alberto (2022). "An approximation to determine the source of the WOW! Signal". International Journal of
Wow!_signal
Japanese anime television series and its franchise
The title puns on the English word kill (pronounced kiru in Japanese approximation) and the Japanese verbs kiru (切る, "cut, slice, carve"), and kiru (着る
Kill_la_Kill
mile 43.3 (river kilometer 69.7) near Enterprise. This is only a close approximation of the entire basin. It does not include a small fraction of the basin
List of longest rivers of the United States
List_of_longest_rivers_of_the_United_States
(intensities) or irradiances in the atmosphere. The code uses N-stream approximation to the radiative transfer equations (Stamnes et al. 1988) and allows
Streamer_(software)
Ratio of inertial to viscous forces acting on a liquid
are used instead as the characteristic particle length-scale. Both approximations alter the values of the critical Reynolds number. The particle Reynolds
Reynolds_number
Yue Chinese dialect of Guangdong province
as well as part of the region west of the main stream of the Xi River, near to the confluence of the two rivers. Most of the region in which Siyi is spoken
Siyi_Yue
Dog breed
Sources report various pronunciations in English, with some closer approximations of the Hungarian original like /ˈvɪʒlɔː/, /ˈviːʒlə/, or /ˈvɪʒlə/, and
Vizsla
Widely used standard for video compression
from the media stream. The combination of the higher-level parameters is called a parameter set. The H.264 specification includes two types of parameter
Advanced_Video_Coding
Physical parameter of a drainage basin
flow in a catchment. Horton (1945) used the following equation as an approximation to describe the average length of overland flow as a function of drainage
Drainage_density
Data structure for approximate set membership
probabilities of each bit being set. However, assuming it is a close approximation we have that the probability of false positives decreases as m (the
Bloom_filter
Type of cryptographic attack
least p. By inverting this expression above, we find the following approximation n ( p ; H ) ≈ 2 H ln 1 1 − p {\displaystyle n(p;H)\approx {\sqrt {2H\ln
Birthday_attack
Nonparametric measure of rank correlation
or Kendall's τ. There are two existing approaches to approximating the Spearman's rank correlation coefficient from streaming data. The first approach
Spearman's rank correlation coefficient
Spearman's_rank_correlation_coefficient
Equations of fluid dynamics
Navier–Stokes equation becomes two 0 = 0 equations and one meaningful equation. The remaining component ψ3 = ψ is called the stream function. The equation for
Derivation of the Navier–Stokes equations
Derivation_of_the_Navier–Stokes_equations
watercraft. In addition, there is the difference between the deep draft and the stream bed or sea bed of a waterway. For roadways and waterways, the clearance
Clearance_(civil_engineering)
Principle relating to fluid dynamics
surfaces of a wing is known, the lift forces can be calculated (to a good approximation) using Bernoulli's equations, which were established by Bernoulli over
Bernoulli's_principle
Nickname for 8-bit ASCII-derived character sets
if accented letters are written without accents or by using two-character approximations, such as ss for ß. Modified local variants of 7-bit ASCII appeared
Extended_ASCII
Probability distribution
is normal, and then using another approximation after the log again to normal. This means that a big approximation part of the CI is from the delta method
Log-normal_distribution
Concept in physics
that J is a function of p and t. In this coordinate system, the Taylor approximation for the velocity near p is v i ( p + r , t ) = v i ( p , t ) + ∑ j J
Strain-rate_tensor
Mathematics award
The Fields Medal is a prize awarded to two, three, or four mathematicians under 40 years of age at the International Congress of Mathematicians (ICM)
Fields_Medal
Canadian television sketch comedy show
Bowl and Reach for the Top hosted by a highly irritable Alex Trebek approximation named Alex Trebel (Levy). Over a decade later, Levy gave Norm Macdonald
Second_City_Television
Intelligence in machines
networks, that are tolerant of imprecision, uncertainty, partial truth and approximation. Soft computing was introduced in the late 1980s and most successful
Artificial_intelligence
Temperature of a thermometer covered by moist cloth
indicated by a simple wet-bulb thermometer often provides an adequate approximation of the thermodynamic wet-bulb temperature. For an accurate wet-bulb
Wet-bulb_temperature
Algorithm that generates an approximation of a random number sequence
useful in applications like Monte Carlo simulations where independent streams are needed. Examples include: Philox: Uses multiplication-based mixing
Pseudorandom_number_generator
Unit of information
unexpected by that person. The amount of information contained in a data stream may be characterized by its Shannon entropy. Knowledge is the awareness
Data
Philosophical idea that only one's own mind is certain to exist
Representation of an object in an individual mind is held to be a mental approximation of the object in the external world. Therefore, Samkhya chooses representational
Solipsism
Extension to the x86 instruction set by AMD
Packed floating-point reciprocal approximation PFRSQRT – Packed floating-point reciprocal square root approximation PFRCPIT1 – Packed floating-point reciprocal
3DNow!
Simulation of ice sheet change
shallow-ice approximation". Journal of Glaciology. 52 (176): 89–98. Bibcode:2006JGlac..52...89V. doi:10.3189/172756506781828935. ISSN 0022-1430. "Two stress
Ice-sheet_model
Video encoding standard
in a single file—later dubbed the MPEG program stream to distinguish it from the MPEG transport stream format introduced as an alternative in MPEG-2)
MPEG-1
Model of atmospheric motion
finally, steady-state conditions. Balanced flow is often an accurate approximation of the actual flow, and is useful in improving the qualitative understanding
Balanced_flow
Season of television series
the main cast during this season after being a recurring cast member for two seasons. In March 2014, the series was renewed for an eighth, ninth and tenth
The_Big_Bang_Theory_season_9
Slanting line punctuation mark (/)
backslash, the symbol chosen by this transcript as a typographical approximation thereof. For an example of this in practice, see the section on proofreading
Slash_(punctuation)
Irreversible transformation of energy into forms less capable of doing work
advection equation, which is free of dissipation, is solved by a numerical approximation method, the energy of the initial wave may be reduced in a way analogous
Dissipation
Problem in computer science
1007/11537311_40. ISBN 978-3-540-28193-1. Lynch, Nancy (October 1974). "Approximations to the halting problem" (PDF). Journal of Computer and System Sciences
Halting_problem
Inertial wave in rotating fluids
on weather. These waves are associated with pressure systems and the jet stream (especially around the polar vortices). Oceanic Rossby waves move along
Rossby_wave
Type of counter
digitizer". A Johnson counter and a few resistors can produce a glitch-free approximation of a sine wave having an output frequency determined solely by the counter's
Ring_counter
Computer science data structure
nO(logn)−O(n)=O(nlogn). This can also be readily seen from Stirling's approximation. make-heap is the operation of building a heap from a sequence of n
Heap_(data_structure)
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TWO STREAM-APPROXIMATION
TWO STREAM-APPROXIMATION
TWO STREAM-APPROXIMATION
TWO STREAM-APPROXIMATION
TWO STREAM-APPROXIMATION
TWO STREAM-APPROXIMATION
TWO STREAM-APPROXIMATION
TWO STREAM-APPROXIMATION
TWO STREAM-APPROXIMATION
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