scholarly journals Space-time processing of random fields of signals in radar-tracking systems using adaptive stricture of unified algorithms and elements

2020 ◽  
pp. 41-45
Author(s):  
A. P. Shovkalyuk
Keyword(s):  
Random Fields ◽  
Optimization Problems ◽  
Negative Influence ◽  
Space Time ◽  
Spatial Structures ◽  
Time Processing ◽  
The Real ◽  
Time Optimization ◽  
First Time ◽  
Statistical Space

The efficiency of synthesized optimum algorithms of processing of random fields of signals is based on adequacy of mathematical model to the real phenomena which lay the foundation in mathematical models of useful and hindered signals. The basic and principal difference of the prospective approach to the development of new theoretical positions of the scientific – methodical means of space-time processing of random fields of signals from the known one is statistical space and time optimization with exception of mutual negative influence to each other. The advantage of the proposed approach is that synthesis becomes possible for the first time by solving statistical optimization problems at the spatial and temporal stages of processing. The use of kronecker-tensor product will make it possible to replace obsolete algorithms for processing multidimensional random received signals with better and more efficient ones, taking into account the real randomness of spatial structures and satisfying modern requirements of military science.

Yury Nagibin and shadows of the Niernsee House

2020 ◽  
pp. 42-60
Author(s):  
S. N. Liutova ◽  
I. I. Dronova
Keyword(s):  
Life Story ◽  
Manufacturing Plant ◽  
The Real ◽  
Best Friend ◽  
Real People ◽  
State Archives ◽  
First Time

The article reveals the names of the prototypes of certain characters in Nagibin’s long story My Golden Mother-in-Law [Moya zolotaya tyoshcha] (the mother-in-law being A. Likhachyova, the wife of the director of the Moscow Car Manufacturing Plant ZIL). For the first time we read the names and learn about the destiny of M. and L. Kostromin, the real people behind the characters of Matvey Matveevich, the neighbour, and Nina Petrovna, the female protagonist’s best friend. The life story of these personalities, residents of the legendary Niernsee House in Bolshoy Gnezdnikovsky Lane, enables the authors, who are related to L. Kostromina, to explain the underpinnings of the relationships between the prototypes of Nagibin’s characters, often a mystery for the writer himself, and share first-hand accounts that confirm his amazing flair for imagination. The article uses materials of family lore, the authors’ private archive (letters and photographs), as well as hitherto unsearched materials from state archives.

scholarly journals Concurrent material and structure optimization of multiphase hierarchical systems within a continuum micromechanics framework

2021 ◽  
Author(s):  
Tarun Gangwar ◽  
Dominik Schillinger
Keyword(s):  
Optimization Problems ◽  
Computational Cost ◽  
Structure Optimization ◽  
Material Behavior ◽  
Hierarchical Systems ◽  
Material Optimization ◽  
Continuum Micromechanics ◽  
Benchmark Tests ◽  
Constraint Optimization Problems ◽  
First Time

AbstractWe present a concurrent material and structure optimization framework for multiphase hierarchical systems that relies on homogenization estimates based on continuum micromechanics to account for material behavior across many different length scales. We show that the analytical nature of these estimates enables material optimization via a series of inexpensive “discretization-free” constraint optimization problems whose computational cost is independent of the number of hierarchical scales involved. To illustrate the strength of this unique property, we define new benchmark tests with several material scales that for the first time become computationally feasible via our framework. We also outline its potential in engineering applications by reproducing self-optimizing mechanisms in the natural hierarchical system of bamboo culm tissue.

Neo-Confucian Hermeneutics at Work:Cheng Yi's Philosophical Interpretation of Analects 8.9 and 17.3

2008 ◽  
Vol 101 (2) ◽  
pp. 169-201 ◽  
Author(s):  
Yong Huang
Keyword(s):  
Song Dynasty ◽  
Traditional View ◽  
Philosophical Concept ◽  
The Real ◽  
The Song Dynasty ◽  
Philosophical Interpretation ◽  
Chinese Scholars ◽  
First Time ◽  
The Relationship

In this article, I discuss the Song 宋 Neo-Confucian Cheng Yi's 程頤 (1033–1107) interpretation of two related controversial passages in the Analects, the recorded sayings of Confucius. The term “neo-Confucianism” was coined by Western scholars to refer to the Confucianism of the period from the Song dynasty to the Ming 明 dynasty (and sometimes through the Qing 清 dynasty). Among Chinese scholars, neo-Confucianism is most commonly referred to as the Learning of Principle (li xue 理學). Although before Cheng Yi and his brother Cheng Hao 程顥 (1032–1085) there were three other philosophers who are normally also regarded as neo-Confucians— Shao Yong 邵雍 (1011–1077), Zhou Dunyi 周敦頤 (1017–1073), and Zhang Zai 張載 (1020–1077)—we can justifiably regard the Cheng brothers as the real founders of neo-Confucianism in the sense that principle becomes the essential philosophical concept for the first time in their works. There is no consensus among scholars as to the relationship between the philosophies of these two brothers. The traditional view regards them as substantially different due to the two different schools of neo-Confucianism that developed from their teachings, the realistic school synthesized by Zhu Xi 朱熹 (1130–1200) from the teachings of Cheng Yi and the idealist school culminating in Wang Yangming 王陽明 (1472–1529) from the teachings of ChengHao. I, however, tend to think that the philosophical positions of the two brothers are largely similar. Unfortunately, since Cheng Hao did not live as long as Cheng Yi, there is insufficient material to create a systematic picture of his view of the Analects passages with which this article will deal.

HERODOTUS BECOMES INTERESTED IN HISTORY

2014 ◽  
Vol 61 (1) ◽  
pp. 1-6
Author(s):  
David Harvey
Keyword(s):  
Major Part ◽  
The Real ◽  
Final Draft ◽  
First Time ◽  
The Temple ◽  
Greek World ◽  
The Way

At 3.60 Herodotus tells us that he has dwelt at length on the Samians because ‘they are responsible for three of the greatest buildings in the Greek world’: the tunnel of Eupalinos, the great temple, and the breakwater that protects their harbour. As successive commentators have pointed out, that is not the real reason for the length of his account. We hear about the tunnel for the first time in this chapter (60.1–3); Maiandrios escapes down a secret channel at 146.2, which may or may not be Eupalinos' tunnel; we hear about the temple of Artemis, not of Hera, at Samos in 48; dedications in the temple of Hera are mentioned in passing at 1.70.3, 3.123.1, 4.88.1, and 4.152.4, but the temple itself cannot be said to play a major part in Herodotus' narrative; naval expeditions sail from Samos (e.g. 44.2, 59.4) but there is no emphasis on the harbour or its breakwater. What Herodotus should have said is ‘I have dwelt at length on Samos, because I am interested in the island's history; and, by the way, they are responsible for three…’; but it is not our job to tell him what he ‘should’ have said. As David Asheri remarks, ‘We can explain it [the length of the Samian logos] most simply by supposing that the logos already existed before the final draft of the book’.

scholarly journals Stochastic Processes with a Particular Type of Variograms

2007 ◽  
Vol 2007 ◽  
pp. 1-5 ◽  
Author(s):  
Chunsheng Ma
Keyword(s):  
Stochastic Process ◽  
Brownian Motion ◽  
Stochastic Processes ◽  
Series Expansion ◽  
Real Line ◽  
Random Fields ◽  
The Other ◽  
Simple Construction ◽  
The Real ◽  
Line Form

This paper is concerned with a class of stochastic processes or random fields with second-order increments, whose variograms have a particular form, among which stochastic processes having orthogonal increments on the real line form an important subclass. A natural issue, how big this subclass is, has not been explicitly addressed in the literature. As a solution, this paper characterizes a stochastic process having orthogonal increments on the real line in terms of its variogram or its construction. Our findings are a little bit surprising: this subclass is big in terms of the variogram, and on the other hand, it is relatively “small” according to a simple construction. In particular, every such process with Gaussian increments can be simply constructed from Brownian motion. Using the characterizations we obtain a series expansion of the stochastic process with orthogonal increments.

Sign in / Sign up

Export Citation Format

Share Document