scholarly journals DEVELOPMENT OF A METHOD FOR MONITORING ANAMOUS BEHAVIOR OF A USER IN A DISTRIBUTED INFORMATION COMPUTER SYSTEM: BUILDING A MATHEMATICAL MODEL

2021 ◽  
pp. 80-91
Keyword(s):  
Mathematical Model ◽  
Computer System ◽  
Distributed Information ◽  
System Building

scholarly journals The structure of autocatalytic networks, with application to early biochemistry

2020 ◽  
Vol 17 (171) ◽  
pp. 20200488
Author(s):  
Mike Steel ◽  
Joana C. Xavier ◽  
Daniel H. Huson
Keyword(s):  
Mathematical Model ◽  
Living Systems ◽  
Bacterial Metabolism ◽  
The Core ◽  
System Building ◽  
Formal Framework ◽  
The Origin Of Life ◽  
Key Features ◽  
Autocatalytic Networks ◽  
New Algorithms

Metabolism across all known living systems combines two key features. First, all of the molecules that are required are either available in the environment or can be built up from available resources via other reactions within the system. Second, the reactions proceed in a fast and synchronized fashion via catalysts that are also produced within the system. Building on early work by Stuart Kauffman, a precise mathematical model for describing such self-sustaining autocatalytic systems (RAF theory) has been developed to explore the origins and organization of living systems within a general formal framework. In this paper, we develop this theory further by establishing new relationships between classes of RAFs and related classes of networks, and developing new algorithms to investigate and visualize RAF structures in detail. We illustrate our results by showing how it reveals further details into the structure of archaeal and bacterial metabolism near the origin of life, and provide techniques to study and visualize the core aspects of primitive biochemistry.

scholarly journals Mathematical model for organizing storage and providing access to files in distributed information systems

2021 ◽  
Vol 2131 (3) ◽  
pp. 032014
Author(s):  
A Egorov ◽  
A Makshanov ◽  
N Krupenina ◽  
L Tyndykar
Keyword(s):  
Mathematical Model ◽  
Information System ◽  
Information Systems ◽  
Data Exchange ◽  
Distributed Information Systems ◽  
Technical Aspects ◽  
Distributed Information ◽  
Storage Model

Abstract Existing solutions for data exchange problem are considered. Installation feasibility and use FTP-server as an effective tool for storing and providing access to files is analyzed. Technical aspects of its work, as well as the tasks range that can be solved with its help are specified. Within the adaptive information system limits the general interaction functional structures scheme of the distributed FTP-server is resulted, and as the presence concealment scheme of storehouses by a controlling server at connection at the client. The mathematical storage model organization and access to files, allowing to realize rational files distribution sent by the client among available storages, is described.

Simulation of Motion Trajectory of Parachute Inflation Process

2014 ◽  
Vol 945-949 ◽  
pp. 658-661
Author(s):  
Jia Lin Tian ◽  
Yun He ◽  
Lei Chen ◽  
Ban Wang
Keyword(s):  
Mathematical Model ◽  
Wind Tunnel ◽  
Computer System ◽  
Dynamic Load ◽  
Motion Trajectory ◽  
Force Analysis ◽  
Wind Tunnel Tests ◽  
Rapid Changes ◽  
Parachute Inflation

Motion trajectory is the fundamental basis for the design and research of parachute. The fall state, the minimum safe altitude and airborne site are closely associated with the motion trajectory. Particularly due to rapid changes in these parameters such as canopy shape, velocity, dynamic load of the parachute, it is very difficult to determine the motion trajectory of parachute inflation process. Currently, the trajectory is mainly obtained by airdrop tests or wind tunnel tests. The tests are very expensive. Based on the force analysis and mathematical model of a certain type of parachute, we used the computer system to study the motion trajectory of parachute.

scholarly journals The structure of autocatalytic networks, with application to early biochemistry

2020 ◽  
Author(s):  
Mike Steel ◽  
Joana C. Xavier ◽  
Daniel H. Huson
Keyword(s):  
Mathematical Model ◽  
Living Systems ◽  
Bacterial Metabolism ◽  
The Core ◽  
System Building ◽  
Formal Framework ◽  
The Origin Of Life ◽  
Key Features ◽  
Autocatalytic Networks ◽  
New Algorithms

AbstractMetabolism across all known living systems combines two key features. First, all of the molecules that are required are either available in the environment or can be built up from available resources via other reactions within the system. Second, the reactions proceed in a fast and synchronised fashion via catalysts that are also produced within the system. Building on early work by Stuart Kauffman, a precise mathematical model for describing such self-sustaining autocatalytic systems (RAF theory) has been developed to explore the origins and organisation of living systems within a general formal framework. In this paper, we develop this theory further by establishing new relationships between classes of RAFs and related classes of networks, and developing new algorithms to investigate and visualise RAF structures in detail. We illustrate our results by showing how it reveals further details into the structure of archaeal and bacterial metabolism near the origin of life, and provide techniques to study and visualise the core aspects of primitive biochemistry.

scholarly journals Mathematical model for optimizing distributed information systems

2020 ◽  
Vol 1679 ◽  
pp. 022100
Author(s):  
A N Mazalov ◽  
A V Yakovlev ◽  
V V Alekseev ◽  
I S Gaidashov
Keyword(s):  
Mathematical Model ◽  
Information Systems ◽  
Distributed Information Systems ◽  
Distributed Information
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