Nonlinear active systems

1999 ◽  
pp. 319-363
Author(s):  
Mikhail Z. Kolovsky
Keyword(s):  
Active Systems

An alternative model of the vibronic coupling in octahedral complexes

1988 ◽  
Vol 53 (6) ◽  
pp. 1134-1140
Author(s):  
Martin Breza ◽  
Peter Pelikán
Keyword(s):  
Linear Regression ◽  
Alternative Model ◽  
Potential Surface ◽  
Analytical Formula ◽  
Coupling Model ◽  
Regression Method ◽  
Vibronic Coupling ◽  
Linear Regression Method ◽  
Active Systems ◽  
Jahn Teller

It is suggested that for some transition metal hexahalo complexes, the Eg-(a1g + eg) vibronic coupling model is better suited than the classical T2g-(a1g + eg) model. For the former, alternative model, the potential constants in the analytical formula are evaluated from the numerical map of the adiabatic potential surface by using the linear regression method. The numerical values for 29 hexahalo complexes of the 1st row transition metals are obtained by the CNDO/2 method. Some interesting trends of parameters of such Jahn-Teller-active systems are disclosed.

scholarly journals Energy Saving Quantitative Analysis of Passive, Active, and Renewable Technologies in Different Climate Zones

2021 ◽  
Vol 11 (15) ◽  
pp. 7115
Author(s):  
Chul-Ho Kim ◽  
Min-Kyeong Park ◽  
Won-Hee Kang
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Energy Saving ◽  
High Performance ◽  
Energy Systems ◽  
Outdoor Air ◽  
Climate Zones ◽  
Renewable Energy Systems ◽  
Active Systems ◽  
High Performance Buildings

The purpose of this study was to provide a guideline for the selection of technologies suitable for ASHRAE international climate zones when designing high-performance buildings. In this study, high-performance technologies were grouped as passive, active, and renewable energy systems. Energy saving technologies comprising 15 cases were categorized into passive, active, and renewable energy systems. EnergyPlus v9.5.0 was used to analyze the contribution of each technology in reducing the primary energy consumption. The energy consumption of each system was analyzed in different climates (Incheon, New Delhi, Minneapolis, Berlin), and the detailed contributions to saving energy were evaluated. Even when the same technology is applied, the energy saving rate differs according to the climatic characteristics. Shading systems are passive systems that are more effective in hot regions. In addition, the variable air volume (VAV) system, combined VAV–energy recovery ventilation (ERV), and combined VAV–underfloor air distribution (UFAD) are active systems that can convert hot and humid outdoor temperatures to create comfortable indoor environments. In cold and cool regions, passive systems that prevent heat loss, such as high-R insulation walls and windows, are effective. Active systems that utilize outdoor air or ventilation include the combined VAV-economizer, the active chilled beam with dedicated outdoor air system (DOAS), and the combined VAV-ERV. For renewable energy systems, the ground source heat pump (GSHP) is more effective. Selecting energy saving technologies that are suitable for the surrounding environment, and selecting design strategies that are appropriate for a given climate, are very important for the design of high-performance buildings globally.

scholarly journals Nonequilibrium mode-coupling theory for dense active systems of self-propelled particles

Soft Matter ◽  
2017 ◽  
Vol 13 (41) ◽  
pp. 7609-7616 ◽  
Author(s):  
Saroj Kumar Nandi ◽  
Nir S. Gov
Keyword(s):  
Liquid State ◽  
Mode Coupling ◽  
Statistical Physics ◽  
Active Particle ◽  
Scaling Relations ◽  
Coupling Theory ◽  
Mode Coupling Theory ◽  
Current Interest ◽  
Active Systems ◽  
Dense Liquid

The physics of active systems of self-propelled particles, in the regime of a dense liquid state, is an open puzzle of great current interest, both for statistical physics and because such systems appear in many biological contexts. We obtain a nonequilibrium mode-coupling theory for such systems and present analytical scaling relations through mapping with a simpler model of a single trapped active particle.

THE MANAGEMENT SYSTEM OF THE MINERAL RESOURCE COMPLEX OF THE REGION, TAKING INTO ACCOUNT THE ANALYSIS OF ENVIRONMENTAL RISKS

2021 ◽  
pp. 40-43
Author(s):  
Е.В. Кузнецова
Keyword(s):  
Mineral Resource ◽  
Management System ◽  
External Environment ◽  
Mineral Resources ◽  
Environmental Risks ◽  
Active Systems ◽  
Mining Project ◽  
Mining Projects ◽  
The Impact ◽  
Important State

При моделировании системы управления минерально-сырьевым комплексом региона необходимо учитывать влияние рисков на реализуемость горного проекта, как элементов внешней среды. В работе выполнено моделирование системы управления минерально-сырьевым комплексом региона с учетом рисков горных проектов. One of the most important state tasks in the management system of the mineral resource complex, both at the national and regional levels, is to ensure the reproduction of mineral resources. The solution of this problem can be modeled using the theory of control of active systems, which, of course, can be attributed to the mineral resource complex. When modeling the management system of the mineral resource complex of the region, it is necessary to take into account the impact of risks on the feasibility of a mining project, as elements of the external environment. In this paper, the authors have modeled the management system of the mineral resource complex of the region, taking into account the risks of mining projects.

scholarly journals CloudSat and CALIPSO within the A-Train: Ten Years of Actively Observing the Earth System

2018 ◽  
Vol 99 (3) ◽  
pp. 569-581 ◽  
Author(s):  
Graeme Stephens ◽  
David Winker ◽  
Jacques Pelon ◽  
Charles Trepte ◽  
Deborah Vane ◽  
...  
Keyword(s):  
Vertical Structure ◽  
Hydrological Cycle ◽  
Integrated Approach ◽  
Climate Data ◽  
Multiple Perspectives ◽  
Active Sensors ◽  
Active Systems ◽  
Cloud Properties ◽  
The Earth ◽  
Radiance Data

Abstract One of the most successful demonstrations of an integrated approach to observe Earth from multiple perspectives is the A-Train satellite constellation. The science enabled by this constellation flourished with the introduction of the two active sensors carried by the National Aeronautics and Space Administration (NASA) CloudSat and the NASA–Centre National d’Études Spatiales (CNES) Cloud–Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellites that were launched together on 28 April 2006. These two missions have provided a 10-yr demonstration of coordinated formation flying that made it possible to develop integrated products and that offered new insights into key atmospheric processes. The progress achieved over this decade of observations, summarized in this paper, clearly demonstrate the fundamental importance of the vertical structure of clouds and aerosol for understanding the influences of the larger-scale atmospheric circulation on aerosol, the hydrological cycle, the cloud-scale physics, and the formation of the major storm systems of Earth. The research also underscored inherent ambiguities in radiance data in describing cloud properties and how these active systems have greatly enhanced passive observation. It is now clear that monitoring the vertical structure of clouds and aerosol is essential, and a climate data record is now being constructed. These pioneering efforts are to be continued with the Earth Clouds, Aerosol and Radiation Explorer (EarthCARE) mission planned for launch in 2019.

scholarly journals Secured Vehicle Safety System using GSM Technology

2019 ◽  
Vol 8 (6S4) ◽  
pp. 832-836 ◽  
Keyword(s):  
Focal Point ◽  
Well Being ◽  
Vehicle Safety ◽  
Security Framework ◽  
Remote Communication ◽  
Active Systems ◽  
Automated Vehicle ◽  
Region Data ◽  
The Web ◽  
Area Data

A smart helmet is a kind of defensive headgear utilized by the rider which makes bike driving more secure than previously. The principle reason for this keen protective cap to give well being to rider.Here I proposed a work which is endeavor to plan a propelled vehicle’s security framework which utilizes GSM to avert burglary and to decide the area of vehicles. Now a daysburglary is going on the stopping or in some shaky spots. The wellbeing of the vehicles is incredibly fundamental. The point of the vehicles security framework is used to utilizes the remote communication innovatively for the car situations. The principle focal point of this undertaking is to ensure the stealing of vehicle. This is finished with the assistance of GSM modem and circuit which comprises of ARM 7 TDMI microcontroller, transfer and venture down transformer. The framework will be enacted simply in the wake of wearing the head protector or else the client can't ready to get to the vehicle. To achieve Automated Vehicle Location our system uses to transmit the area data continuously, Active systems are produced. Progressing vehicular after system joins a gear device introduced in the vehicle and a remote Tracking servers. The infowas conveyed to Tracking server utilizing GSM/GPRS modem on GSM mastermind by using SMS or utilized direct TCP/IP association with Tracking servers thruGPRS. Following servers in like way has GSM/GPRS modem that gets vehicle region data by techniques for GSM system and stores info into databases. This info is available to embraced clients of the systems by techniques for sites over the web.

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