A study on Character and Space Characteristic in 〈Oasis〉

2020 ◽  
Vol 77 ◽  
pp. 93-123
Author(s):  
BASKAYA Nuriye Nevin
Keyword(s):  
Space Characteristic

Research on 2-D DCT Algorithm and Performance Based on Transform Basic Matrix

2011 ◽  
Vol 58-60 ◽  
pp. 2570-2575
Author(s):  
Wen Bang Sun ◽  
He Xin Chen ◽  
Wen Bing Sun ◽  
Mai Yu Zhou
Keyword(s):  
Information Processing ◽  
Theoretical Analysis ◽  
Total Space ◽  
Processing Technology ◽  
Matrix Operation ◽  
Basic Matrix ◽  
Operation Method ◽  
Space Characteristic ◽  
And Performance

With the development of information processing technology, 2-D DCT has been used more and more widely. But the 2-D DCT is accomplished by computing twice 1-D DCT successively, and cannot embody the total space characteristic of 2-D transform well. To overcome such drawbacks, the paper has broken the traditional thinking of DCT operation, and proposed 2-D SDCT operation method. First, some new 2-D matrix operation principles are defined. Then, the transform basic matrix used for 2-D SDCT operation was build and the operation principle of 2-D SDCT is described in detail. Finally, the performance of 2-D SDCT was described systematically. The theoretical analysis shows that the proposed method makes 2-D DCT succinct to express, easy to comprehend and convenient to operate.

Functional calculus in strong plasma turbulence

1980 ◽  
Vol 24 (3) ◽  
pp. 489-501 ◽  
Author(s):  
Goodarz Ahmadi ◽  
Akira Hirose
Keyword(s):  
Functional Equation ◽  
Plasma Turbulence ◽  
Closure Problem ◽  
Moment Equations ◽  
Characteristic Functional ◽  
Velocity Wave ◽  
Space Characteristic ◽  
The Mean ◽  
Basic Equations ◽  
The Moment

The theory of electrostatic plasma turbulence is considered. The basic equations for the dynamics of the hierarchy of the moment equations are derived and the difficulty of the closure problem for strong plasma turbulence is discussed. The characteristic functional in phase space is introduced and its relations to the correlation functions are described. The Hopf functional equation for dynamics of the characteristic functional is derived, and its equivalence to the hierarchy of the moment equations is established. Similar formulations were carried out in velocity-wave vector space. characteristic functional are considered and their relationships are studied. An approximate solution for Hopf's equation for the nearly normal turbulence is obtained which is shown to predict diffusion of the mean distribution function in velocity space.

Study on the Ecological Experience of Inner Mongolia Grassland Traditional Herdsmen Settlement Construction

2011 ◽  
Vol 243-249 ◽  
pp. 6543-6547
Author(s):  
Ming Ma ◽  
Jng Kong
Keyword(s):  
Resource Utilization ◽  
Inner Mongolia ◽  
Ecological Strategy ◽  
Human Settlements ◽  
Inner Mongolia Grassland ◽  
Settlement Location ◽  
Space Characteristic

This paper base on the study and analyze the Inner Mongolia grassland traditional residence building and settlement space, summarize the ecological experience in settlement location, space characteristic, architectural technology and resource utilization. Explore the suitable ecological strategy and ecological technology in Inner Mongolia grassland human settlements construction.

Research on 2-D Integer SDCT Algorithm

2013 ◽  
Vol 756-759 ◽  
pp. 1571-1575
Author(s):  
Hai Yan Tang ◽  
Wen Bang Sun ◽  
De Bao Zhang ◽  
Yan Chang
Keyword(s):  
Computational Complexity ◽  
Discrete Cosine Transform ◽  
Basic Principle ◽  
Total Space ◽  
Floating Point ◽  
Theoretic Analysis ◽  
Matrix Operation ◽  
Cosine Transform ◽  
Space Characteristic ◽  
Transform Matrix

Nowadays, 2-D DCT is applied widely. But the transform matrix of DCT is expressed with floating-point numbers, so the computational complexity is high and more system resources are occupied. In addition, the 2-D DCT is accomplished by operating 1-D DCT to the rows and columns of 2-D data successively, which cannt embody the total space characteristic of 2-D transform well. To overcome these drawbacks, 2-D integer SDCT (Sub-matrix Discrete Cosine Transform) was proposed in the paper. First, several matrix operation methods were defined. Then, the basic principle of 2-D integer SDCT was deduced in detail. The theoretic analysis show that 2-D integer SDCT is easy to comprehend, convenient to operate, and simplifies the calculation of 2-D DCT.

Spatial Dissipative Structures in Excitable Media (Plankton, Soil Bacteria. . . .)

2019 ◽  
pp. 91-126
Keyword(s):  
Spatial Distribution ◽  
Phase Space ◽  
Dissipative Structure ◽  
Dissipative Structures ◽  
The Other ◽  
Excitable Media ◽  
Bifurcation Diagrams ◽  
Dimensional Phase Space ◽  
Liesegang Bands ◽  
Space Characteristic

A general, the simplest model of a spatial dissipative structure arising in an excitable medium is constructed, containing at least two components interacting with each other with their own mobility. One of these components (active) uses the other component as food. It is shown that such a model leads to a stationary stable spatial distribution of the components in the form of Liesegang bands. As specific examples of the formation of spatial dissipative structures, structures arising in plankton consisting of phytoplankton and zooplankton and in the soil containing the bacterial population and the nutrient substrate are considered. Bifurcation diagrams are constructed in the parameter space, characteristic for each of the considered excitable media, which determine the conditions for the formation of dissipative structures in these media. The existence in the plankton of a strange attractor of a previously unknown shape in four-dimensional phase space has been discovered.

scholarly journals Time-space Characteristic of Interruptible Load on Dispatch Solution

2015 ◽  
Vol 48 (28) ◽  
pp. 1355-1358
Author(s):  
Shuangchen Yao ◽  
Haoming Liu ◽  
Dan Lu ◽  
Xiaoling Yuan
Keyword(s):  
Interruptible Load ◽  
Time Space ◽  
Space Characteristic

Research on the Time and Space Characteristic of Argon Dielectric Barrier Discharge at Atmospheric Pressure

2014 ◽  
Vol 1008-1009 ◽  
pp. 630-634
Author(s):  
Zhi Nan Liu ◽  
Hui Min Ge
Keyword(s):  
Applied Voltage ◽  
Atmospheric Pressure ◽  
Fluid Model ◽  
Electrical Characteristics ◽  
Number Density ◽  
Plasma Parameters ◽  
One Dimensional ◽  
Space Characteristic ◽  
Discharge Gap ◽  
Bright Area

Numerical calculations with time dependant one-dimensional fluid model are performed at various conditions in argon atmospheric pressure to calculate electrical characteristics and plasma parameters including charged and metastable molecules densities. The simulation results show after steady discharge are formed, the voltage of discharge gap nearly remain constant and the phase is 0.36π advance of the applied voltage; The current density are in the same period as the applied voltage, the phase is 0.58π ahead of the applied voltage; The steady state Ar are in high number density in the whole discharge gap; The Ar* number density appear peak at the middle of the discharge gap; The Ar+ number density appear peak in the negative bright area.

RESONANCES OF ACOUSTIC WAVES INTERACTING WITH AN ELASTIC SEABED

2001 ◽  
Vol 09 (03) ◽  
pp. 1079-1093 ◽  
Author(s):  
MARGARETE S. FOKINA ◽  
VLADIMIR N. FOKIN
Keyword(s):  
Reflection Coefficient ◽  
Half Space ◽  
Acoustic Waves ◽  
Elastic Half Space ◽  
Exact Expression ◽  
Ocean Bottom ◽  
Sediment Layer ◽  
Resonance Theory ◽  
Space Characteristic ◽  
Exact Calculations

An exact expression for the reflection coefficient is obtained with the Thomson–Haskell technique for the geoacoustical model of an ocean bottom consisting of an elastic homogeneous sediment layer overlying an elastic half-space. Characteristic equations for explicit determination of the position of each individual resonance contribution to the reflection coefficient are derived. Analytical expressions for the angular and frequency resonance positions are found. The resonance expression for the reflection coefficient is written in the form of a sum of resonance terms. Comparison between resonance theory and exact calculations for the elastic layer covering the elastic half-space is presented. The results of resonance formalism show excellent agreement with exact theory in all the cases.

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