Water Conservancy and Hydropower Engineering Construction System Brittleness Evaluation Based on Choquest Integral

2012 ◽  
Vol 459 ◽  
pp. 638-643
Author(s):  
Lei Zhang ◽  
Zi Yang Li

Water conservancy and hydropower engineering construction system is a typical multi-level complex system and its swarm identity is apparent to brittleness cumulative effect. The brittle sources are interlinked and associated, thus there are topological forms of different brittle sources, which make the relationship of brittleness evaluation cumulative function to be non-linear. In traditional evaluation methods, indicators are usually assumed to be independent, which does not satisfy the non-linear characteristics of water conservancy and hydropower engineering construction system brittleness. Thus, in this paper, weak monotonic of fuzzy measure is used to replace the addition function, brittleness evaluation model of water conservancy and hydropower engineering construction system based on Choquest integral is built.

1985 ◽  
Vol 24 (02) ◽  
pp. 91-100 ◽  
Author(s):  
W. van Pelt ◽  
Ph. H. Quanjer ◽  
M. E. Wise ◽  
E. van der Burg ◽  
R. van der Lende

SummaryAs part of a population study on chronic lung disease in the Netherlands, an investigation is made of the relationship of both age and sex with indices describing the maximum expiratory flow-volume (MEFV) curve. To determine the relationship, non-linear canonical correlation was used as realized in the computer program CANALS, a combination of ordinary canonical correlation analysis (CCA) and non-linear transformations of the variables. This method enhances the generality of the relationship to be found and has the advantage of showing the relative importance of categories or ranges within a variable with respect to that relationship. The above is exemplified by describing the relationship of age and sex with variables concerning respiratory symptoms and smoking habits. The analysis of age and sex with MEFV curve indices shows that non-linear canonical correlation analysis is an efficient tool in analysing size and shape of the MEFV curve and can be used to derive parameters concerning the whole curve.


1980 ◽  
Vol 7 (3) ◽  
pp. 237 ◽  
Author(s):  
WJ Cram

Carrot tissue is taken as a representative glycophilic tissue. It accumulates K+, Cl- and total osmotica to a steady level after 10-15 days. This level of Cl- is nearly constant and is independent of external KCl concentration and of turgor. Cl- influx is also independent of turgor. It therefore appears that the Cl- accumulating system in carrot (and possibly in other glycophytes) can, under artificial conditions, act as a homeostat for intracellular C- concentration, and is not the basis of turgor maintenance. It is suggested that turgor might be maintained by controlled accumulation of K+ carboxylates in glycophytes. Beet tissue is taken as a representative halophilic tissue. It accumulates K+, Cl-, and total osmotica to a steady level after about 4 days. At this stage turgor is constant, due to differences in the levels of KCl accumulated. Cl- influx is stimulated by reducing turgor after a lag of 3-5 h. The relationship of Cl- influx to turgor is non-linear. It therefore appears that in beet (and possibly in other halophytes) turgor maintenance is based on the turgor-sensitive accumulation of Cl- salts. Cl- influx in beet is also affected by changes in intracellular Cl- concentration, as in carrot. It is suggested that this feedback relationship may primarily be part of a system for the controlled uptake of nutrients rather than of Cl- in both tissues.


1983 ◽  
Vol 37 (1) ◽  
pp. 145-148 ◽  
Author(s):  
J. R. Parks

ABSTRACTA general parabola constrained to pass through points (0,0) and (1,1) yields a linear one parameter (q) function which can be used to relate the fraction of maturity of organs or masses of tissue to the fraction of maturity of the whole animal. This is an empirical approach. It is often preferable to derive a function from a theory of the phenomenon under study. A theory of feeding and growth of animals is used to derive a non-linear one parameter (k) function which can be used to study the same data to which the linear q-function is applicable. The parameter, k is directly proportional to the fraction of total nutrients consumed by the animal which is allocated to the organ as the animal ages. If the fraction of nutrient allocated remains constant, the parameter k is constant and has the same properties as the parameter q. However there is nothing in the theory which constrains k to be constant, therefore, the q-function is of more general use than the q-function in the study of the relationship of the fraction of maturity of organs to that of the whole animal. Two cases are presented to illustrate this generality.


2012 ◽  
Vol 518-523 ◽  
pp. 991-994
Author(s):  
Wei Liu ◽  
Shi Yun Zhang

In this paper, safety production environment mechanism is analyzed, and An evaluation model for safety investment benefits is presented. From the viewpoint of proion system situations and capital flow transition between safety investment and accident loss in enterprises, the relationship of production investment, production output and safety investment benefits are deduced. By comparing production systems with and without safety investment, the variation rules and their model between safety investment benefits and accident loss in extreme and actual situations are analyzed. Finally, the expressions of safety investment benefits are derived for general actual cases. The proposed evaluation model can provide an important and scientific basis to evaluate safety investment benefits and be employed in a number of ways to improve it for enterprises and safety administrator.


2011 ◽  
Vol 361-363 ◽  
pp. 1589-1592
Author(s):  
Si Ling Yang ◽  
Ying Zong Liu ◽  
Hong Jiang Gao

As the nation pays more and more attention to ecological construction, the government investment in forestation projects increases every year. The project management of afforestation project with government investment is a complex systematic project which needs well coordinate of the relationship of various subjects to find a reasonable combination of every interest subjects by appropriate design of the system, so it is necessary to introduce reasonable project management mechanism. This paper points out the problems exist in the current project management of forestation project with government investment and analyses the reasons; then agent construction system is proposed to improve the management mechanism of the forestation project with government investment; finally, the advantages and disadvantages of the system were analyzed.


1990 ◽  
Vol 26 (1) ◽  
pp. 33-56 ◽  
Author(s):  
Steven Bird ◽  
Ewan Klein

One of the major innovations within post-SPE generative phonology has been the development of frameworks where phonological units are organized in a non-linear fashion. Taking autosegmental phonology (Goldsmith, 1976) as our main exemplar of such frameworks, we wish to address the following question: What is the appropriate interpretation of autosegmental representations? There is, of course, a further question about what we mean by INTERPRETATION: formal, phonetic or computational interpretation? Although we will concentrate on the first of these, we believe that all three aspects should be regarded as closely inter-connected and mutually constraining. The question of interpreting autosegmental representation has in fact been recently posed by Sagey (1988), and we shall take her proposal as our starting point. While it is uncontroversial to suppose that the relationship between units on a given autosegmental tier is one of temporal precedence, Sagey claims that it is more problematic to pin down what is meant by association between tiers. She argues, cogently we believe, that if association is taken to be a relationship of simultaneity between durationless units, then standard analyses of complex segments and gemination lead to logical inconsistency. Instead, association should be taken as temporal OVERLAP between units with duration.


2012 ◽  
Vol 226-228 ◽  
pp. 1390-1395
Author(s):  
Xia Zhong Zheng ◽  
Qiao Ling Chen ◽  
Hua Fei Li ◽  
Peng Fei Shi

In underground engineering construction of water conservancy and hydropower engineering, determining surrounding rock excavation and supporting construction measures and parameters according to the classification of surrounding rock's stability is an effective method. In hydropower engineering field, it made some achievements of surrounding rock classification through the engineering geological mechanics parameters. but there are some problems in the application. After the study, this paper established a fuzzy comprehensive evaluation model to determine the stability of surrounding rock. Practice has proved it to be more reasonable.


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