IV. Decision Theory and Dynamic Equilibrium Analysis

2011 ◽  
pp. 56-67
Author(s):  
Łukasz Zaremba

The cobweb theorem is the economic theory on the dynamic equilibrium analysis, which is used not only in agriculture but, when some conditions are fulfilled, on the various markets as well. The theorem assumes, that producers base their current output on the average price which they obtain in the market during the previous year. Some researchers accuse, however, that this theorem simplifies the reality too much, especially while contemporary market is developed and complex. This theorem derives, however, from the agricultural market, where was primary observed in practice. What was quite predictable was the fact, that nowadays influence of farm-gate price value from previous year is statistical insignificant factor on the way to make the production decisions up. This conclusion let us suppose, that producers are conscious market players. Their production decisions are derivatives of other factors. The statistical tools used in this paper it is the correlation analysis with lags for first differences of time series of prices and harvested area of raspberry, chokeberry and black currant.


2014 ◽  
Vol 484-485 ◽  
pp. 967-971
Author(s):  
Quan Li

This paper analyzes the C/S structure and B/S structure of their own characteristics, building energy decision support system based on network technology, elaborated Web GIS and database connections and other technical principles and applications. Mixed B/S structure mode development to achieve information management, energy consumption is forecast to show the query using the amount of energy, energy supply and demand dynamic equilibrium analysis and other functions, with simple, efficient, easy to operate and so on, and has good scalability and maintainability.


2011 ◽  
Vol 58-60 ◽  
pp. 1067-1072
Author(s):  
Jian Qiang Zhou

Aiming at the Multi-layer leather cutting machine,for the more thicker material paved on the table,the cutting resistance are increased and the cutter are to be need much more longer,this caused the cutter chattered easily.In order to solve the problem, the structure analysis are to be done for the main transmission system, the dynamics model of the high-frequency cutting knife shaft system is established according to transfer matrix method of the multibody system.Then combining with boundary conditions, the shaft system of natural frequency are calculated,it helped to do the dynamic equilibrium analysis for the flexible rotor and the slider-crank mechanism, simulation results show that it is good to reduce its inertia force and improve cutting stability through structure improvement for the main transmission system.


2015 ◽  
Vol 764-765 ◽  
pp. 1070-1074 ◽  
Author(s):  
Yi An Chen ◽  
Hsing Cheng Yu ◽  
Young Zehr Kehr

This paper presents design of a novel submerged Kuroshio generator system (SKGS) which is suitable for maritime environments near Keelung Sill. The SKGS was combined with a reliable cable design and a simple anchor system at sea, and it could ignore changes of yaw and roll motion through a proper rudder design. An intuitive simulation method adopted MapleSim software to create a rigid structure modeling of the SKGS. Different modeling frameworks for varied cable design and joint positions were adjusted to meet with the system requirements. Therefore, the system requirements of stability, dynamic equilibrium analysis, and motion behavior of the SKGS combined with the cable design were achieved in this study. Furthermore, the motion ranges of surge-axis and heave-axis could be converged within 0.5 m, and the estimated output power of the SKGS could exceed in 55.1 KW.


2014 ◽  
Vol 60 (No. 7) ◽  
pp. 301-308
Author(s):  
P.-Y. Nie ◽  
Y.-H. Chen

By establishing a dynamic equilibrium model, the paper analyses the equilibrium of the food industry and the equilibrium about the food quality as well as quantity is achieved. Firstly, the study examines the effects of competitions on the price, outputs, profits and social welfare. The authors argue that competition reduces the food quality. Secondly, this paper shows that consumers benefit from the quality regulation while producers undertake a loss. Moreover, social welfare first increases then decreases with the regulation. Thirdly, the optimal quality regulation is presented and a higher quality regulation reduces competition, while the lower quality regulation promotes it. Finally, the effects of fixed costs on the equilibrium number of firms in the corresponding industry are captured.  


2020 ◽  
Vol 43 ◽  
Author(s):  
Peter Dayan

Abstract Bayesian decision theory provides a simple formal elucidation of some of the ways that representation and representational abstraction are involved with, and exploit, both prediction and its rather distant cousin, predictive coding. Both model-free and model-based methods are involved.


Author(s):  
Eva-Maria Mandelkow ◽  
Eckhard Mandelkow ◽  
Joan Bordas

When a solution of microtubule protein is changed from non-polymerising to polymerising conditions (e.g. by temperature jump or mixing with GTP) there is a series of structural transitions preceding microtubule growth. These have been detected by time-resolved X-ray scattering using synchrotron radiation, and they may be classified into pre-nucleation and nucleation events. X-ray patterns are good indicators for the average behavior of the particles in solution, but they are difficult to interpret unless additional information on their structure is available. We therefore studied the assembly process by electron microscopy under conditions approaching those of the X-ray experiment. There are two difficulties in the EM approach: One is that the particles important for assembly are usually small and not very regular and therefore tend to be overlooked. Secondly EM specimens require low concentrations which favor disassembly of the particles one wants to observe since there is a dynamic equilibrium between polymers and subunits.


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