The process of system energy flowing and the principle of saving energy are described, and finally the feasibility and validity of frequency control are proved through the experiment of motor load characteristics.
Taking the agroecosystem of Lintao as study unit, this paper studied the energy flowing in different sub-systems of farming ,animal husbandry, forest, orchard and human being from 1980 to 1999. The ways of energy flow, structure of supplementary energy input, composition of the input and output energy for different sub-systems and energy transformation efficiency were analyzed.
As it is intended for coal fired power plants, the Input/Loss Method determines coal flow and as fired heating value based on turbine cycle energy flows, boiler performance through iterative techniques and emission measurements.
Biological productivity is the matter production capacity of different organism levels (individual, community, ecosystem, region and biome), and an indicator of system health that it reflects and controls matter cycles and energy flows of the system.
Based on the “double surplus " theory put forward to by the author, that unveils the supply and demand laws on the material and energy flows in artificial ecosystem, we discuss the mechanisms and counter-measures of recycle economy in demand of sustainable development, from the view of the balance of supply and demand of production and consumption,structure equivalence.
According to the environmental situation and the mode of agricultural production in karst mountain area of guizhou province , the Guiyang wudang dairy was selected as pilot spot to develop eco agricultural engineering. Through constructing manmade grass field, optimizing structure of cattle herd, adjusting structure of production, 254 family based farms were built. Furthermore, new energy sources as well as energy flux and material circulation were developed, thus a high effective mode of eco agricultural engineering was established.
Firstly,the combination of desertificationresearch with restoration ecology and the adoption of the theory of restoration ecology in the desertification research promoted the demonstration of combating the desertification base on ecosystem diversity,stability,energy flux,and material recycle.
The beam power accounting for the melting process is calculated by means of an energy balance involving the total energy in liquid phase plus the energy flowing through the liquid-solid interface.
The flow of mechanical momentum which is always associated with thermal energy flowing down a temperature gradient, generates a radiation pressure on any surface of physical discontinuity in the medium in which the energy is propagating.
The P/T net-based hierarchy structure model of the component-connector design feature and the energy flowing P/T net model of the primitive mechanism are built up.
Then the P/T net-based hierarchy structural model is applied to represent the conceptual product, and the energy flowing P/T net is established to simulate the working status of the conceptual product.
The numerical results show that the effect of seeded impurity radiation is strongly mitigated by decreasing of sputtered impurity density and its radiation due to lower energy flowing to the SOL.
When investigating the substance cycling and energy flows of all forest ecosystems, we should consider the characteristics of different stands in order to improve the precision of our estimates.
Analysis of isotopic composition makes it possible to trace matter and energy flows through biological systems and to evaluate the rate of many ecological processes.
In open physical systems exposed to external energy flows, additional macroscopic degrees of freedom ("memory cells") emerge, their number increasing with an increase in the flow and orderliness of the external energy.
This indicates that the self-organization of physical systems in external energy flows and the self-organization and evolution of living systems are fundamentally different.
For steady-state vibrations of an anisotropic elastic body of finite dimensions, a method of the determination of the vibration energy flows in the body is proposed.