scholarly journals Fock: The Theory of Space, Time and Gravitation/Fokker: Time and Space, Weight and Inertia/Hauser: Introduction to the Principles of Mechanics/Biot: Mechanics of Incremental Deformations/Preisendorfer: Radiative Transfer on Discrete Spaces/Duffin: Electri

1966 ◽  
Vol 22 (3) ◽  
pp. 139-143
Author(s):  
J. Ruffer ◽  
H. Goenner ◽  
H. Butler ◽  
L. Föppl ◽  
G. Ecker ◽  
...  
Author(s):  
Fei Jin ◽  
Xiaoliang Liu ◽  
Fangfang Xing ◽  
Guoqiang Wen ◽  
Shuangkun Wang ◽  
...  

Background : The day-ahead load forecasting is an essential guideline for power generating, and it is of considerable significance in power dispatch. Objective: Most of the existing load probability prediction methods use historical data to predict a single area, and rarely use the correlation of load time and space to improve the accuracy of load prediction. Methods: This paper presents a method for day-ahead load probability prediction based on space-time correction. Firstly, the kernel density estimation (KDE) is employed to model the prediction error of the long short-term memory (LSTM) model, and the residual distribution is obtained. Then the correlation value is used to modify the time and space dimensions of the test set's partial period prediction values. Results: The experiment selected three years of load data in 10 areas of a city in northern China. The MAPE of the two modified models on their respective test sets can be reduced by an average of 10.2% and 6.1% compared to previous results. The interval coverage of the probability prediction can be increased by an average of 4.2% and 1.8% than before. Conclusion: The test results show that the proposed correction schemes are feasible.


Author(s):  
Keith C. Clarke ◽  
Ian J. Irmischer
Keyword(s):  

2017 ◽  
Vol 3 ◽  
pp. e123 ◽  
Author(s):  
Ken Arroyo Ohori ◽  
Hugo Ledoux ◽  
Jantien Stoter

Objects of more than three dimensions can be used to model geographic phenomena that occur in space, time and scale. For instance, a single 4D object can be used to represent the changes in a 3D object’s shape across time or all its optimal representations at various levels of detail. In this paper, we look at how such higher-dimensional space-time and space-scale objects can be visualised as projections from ℝ4to ℝ3. We present three projections that we believe are particularly intuitive for this purpose: (i) a simple ‘long axis’ projection that puts 3D objects side by side; (ii) the well-known orthographic and perspective projections; and (iii) a projection to a 3-sphere (S3) followed by a stereographic projection to ℝ3, which results in an inwards-outwards fourth axis. Our focus is in using these projections from ℝ4to ℝ3, but they are formulated from ℝnto ℝn−1so as to be easily extensible and to incorporate other non-spatial characteristics. We present a prototype interactive visualiser that applies these projections from 4D to 3D in real-time using the programmable pipeline and compute shaders of the Metal graphics API.


2021 ◽  
Vol 76 (2) ◽  
pp. 80-88
Author(s):  
Sh.A. Tazhibaeva ◽  
◽  
A. Zhienbayeva ◽  

The chronotope issue has been relevant in literary criticism for several decades. Furthermore, Plato argued that the essence of art is an imitation of real life. Aristotle pointed out that art creates its own world as something possible or probable and thereby reveals the essential properties of the real world. This article attempts to summarize the main research results on the problem of spatial images and the chronotope as a whole and thereby determine what is the specificity of the image of space, what is its role in a particular work. The purpose of the study is to establish the role of the chronotope in the recreation of the artistic image of Kazakhstan. In modern prose, chronotopic parameters are traced, the topography and symbolism of urban space are examined and its essential characteristics are given. In our opinion, the chronotope is an important modeling tool of literature. The appeal to this problem is due to the fact that the organization of the chronotope in the modern literature of Kazakhstan has become much more complicated in comparison with the traditional space-time paradigms. Anel Meken and Anastasia Skripnikova demonstrate their virtuoso «play with time and space». Time and space set the parameters of the artistic world of the work. Their relationship in prose reflects the structure of the author's consciousness, their worldview, and the system of philosophical ideas and, therefore, their interpretation is a search for means of expressing the author's idea. The study of the categories of time and space allows one to penetrate deeper into the «fabric» of a work of art, to reveal the specifics of its construction, to determine the concept of the writer's world. However, despite such different positions of researchers, controversy continues to this day in literary criticism.


10.1068/d413t ◽  
2007 ◽  
Vol 25 (4) ◽  
pp. 668-681 ◽  
Author(s):  
Martin Hand ◽  
Elizabeth Shove ◽  
Dale Southerton

This paper begins with two observations: that UK homes appear to have accumulated increasing numbers of domestic technologies, yet new houses are smaller, on average, than those built before 1980. The spatial pressures placed on homes that result from the accumulation of technologies are explored by drawing upon forty household interviews which enquired into the domestic organisation of kitchen and bathroom technologies and practices. Many households have responded to such spatial pressures by extending or reformulating their domestic spaces: such that kitchens are becoming increasingly multifunctional spaces and bathrooms are multiplying. It is argued that these trends are not simply driven by an unstoppable tide of material possession but reflect context-specific arrangements related to the temporal and ideological structuring of domestic practices. Technologies and practices coevolve with the result that new demands are made on homes—the commodities and objects with which we live our lives influence our experience of space and the value placed on different physical configurations. Domestic technologies are therefore implicated in the structure and reproduction of practice and hence in the choreography of things and people in time and space.


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