Simulation of cave hydrology using a conventional computer spreadsheet

2020 ◽  
pp. 443-448
Author(s):  
J.D. Wilcock
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Guillermo Licea Sandoval

Small computing devices are everywhere changing the way people communicate and interact, however applications for these devices are developed more or less with the same tools used for conventional computer applications. Developers of handheld computer applications can find few options for development. In this paper we present MADEE a development and execution environment for mobile information systems running on handheld computers. This environment allows the implementation of mobile information systems faster and easier than using conventional developing tools, including support for conventional computer applications.


2019 ◽  
Vol 110 ◽  
pp. 01073 ◽  
Author(s):  
Alexander Konikov

The issue of marketing in the construction industry has always remained relevant. Indeed, it is not easy to design objects so that they bring high and stable income. The paper studies a solution to the problem, based on the use of the iteration method, the ABC - XYZ analysis, and digital filtering. It is based on the well-known principle of the study of complex systems: the sequential division of a complex task into a number of simpler ones. We would like to note that the “classic” ABC - XYZ analysis gives only general results about the profits from construction projects and does not study the reasons due to which these profits are received. In contrast, the proposed tooling allows taking into account the main technical, geographical and other factors typical for profitable construction projects. One of the advantages of the considered approach is that the conventional computer tools - a spreadsheet MS Excel, is used in solution. The paper discusses the advantages and disadvantages of the proposed approach, specifies in which cases it is advisable to use this approach and where to use more powerful and expensive tools - Big Data technology. For better visualization and clarity, the elements of set theory are used in the paper. This methodology is universal, and its use in the energy industry is possible when selecting more profitable types of products.


2013 ◽  
Vol 791-793 ◽  
pp. 1845-1849
Author(s):  
Xu Dong Fang ◽  
Yu Hua Tang ◽  
Jun Jie Wu

With the realization of physical memristors, using memristors to perform stateful logic operations has been demonstrated feasible. In such operations, memristors simultaneously serve as latches and logic gates, thus enabling the in-situ computing which may open a new computing paradigm for computer architecture. In this paper, we first analyze two types of typical memristive stateful logic gates to reveal the working mechanism of the stateful logic, and then review the recent researches on the memristive stateful logic, and finally discuss the pros and cons of the stateful logic. We reach the conclusion that the stateful logic promises a novel computing paradigm which may revolutionize the conventional computer architecture, while its development is currently subjected to the state drift problem and is constrained by the lack of a general design methodology and physically verification.


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