An Improved XML Index Structural Connection Algorithm Based on Orthogonal B+ tree

2009 ◽  
Author(s):  
Huazhu Song ◽  
Mingzhi Zhang ◽  
Wenting Sun ◽  
Ming Yan
Keyword(s):  
Xml Index ◽  
Structural Connection

STRUCTURAL CONNECTIONS AND INTERCHANGEABILITY OF ASYMMETRIC TYPES OF THEORETICAL DISTRIBUTIONS

2020 ◽  
Vol 6 (8(77)) ◽  
pp. 13-17
Author(s):  
Azimkhan Kurmankozhayev ◽  
Elmira Seilbekovna Yesbergenova
Keyword(s):  
Weibull Distribution ◽  
Empirical Analysis ◽  
Gamma Distribution ◽  
Statistical Data ◽  
Distribution Patterns ◽  
Structural Relationships ◽  
Statistical Regularities ◽  
Structural Connections ◽  
Characteristic Features ◽  
Structural Connection

Presented the results of evaluation of structural connection, identity and interchangeability of main asymmetric types of theoretical distributions most often acceptable for assessing the distributions of various indicators in geology and technology. The method of empirical analysis and statistical inference was used with the involvement of nonparametric facts according to the distribution patterns. The analysis of the empirical results of the application of the lognormal, gamma distribution and the Weibull distribution with the involvement of extensive statistical data from literary and research sources is carried out. The characteristic features and statistical regularities of distributions inherent to them are revealed, estimated statistical conclusions are obtained, according to which structural relationships between the functions of the lognormal, gamma and Weibull distributions are revealed. The identity and authenticity of the development of probabilistic frequencies in their application have been established, the complex geometric "image" of asymmetry inherent to these types of distributions is generalized. Structural relationships and interchangeability of asymmetric types of distributions are recommended to increase the reliability and credibility of the estimated choice of distribution in conditions of uncertainty and insignificance of statistical data when solving problems associated with forecasts, technological and computer developments.

Chronic alcoholism in relation to attempted or effected suicide. A long-term study

1988 ◽  
Vol 3 (3) ◽  
pp. 181-188 ◽  
Author(s):  
O.M. Lesch ◽  
H. Walter ◽  
R. Mader ◽  
M. Musalek ◽  
K. Zeiler
Keyword(s):  
Suicide Attempts ◽  
Depressive Symptomatology ◽  
Chronic Alcoholism ◽  
Chronic Alcoholic ◽  
Chronic Alcohol Abuse ◽  
Drinking Habits ◽  
Psychiatric Illnesses ◽  
Long Term Study ◽  
Structural Connection

SummaryRushing (1968) offers two hypotheses for the possible structural connection between suicidal and chronic alcoholic case groups : the “processual cause theory” is based on the idea that alcoholism leads through its problematic nature to suicide attempts. In the “common cause theory” alcoholism and suicidai acts are due to mutually shared factors, e.g., social isolation and enforced social integration.Data on suicide and suicide attempts were obtained as a separate aspect of a comprehensive follow-up investigation. All patients from one particular region in Austria, who had been admitted to hospital between 1976 and 1978 for treatment of chronic alcoholism took part in this study. Follow-up time was 4 to 7 years. 101 patients died during this period. 356 patients remained under close follow-up investigation. In addition to information about basic drinking habits, we attempted to identify predictive factors regarding the course of alcoholism and investigated familial circumstances, development and interactions.In contradiction with both theories forwarded by Rushing, we were able to isolate a special subgroup of chronic alcoholics attempting or committing suicide. This group is characterized by a depressive symptomatology (endogeneous-depressive syndrome, according to the Viennese Diagnostic Criteria), as well as by the presence of other psychiatrie disturbances underlying chronic alcohol abuse. Family histories also uncovered evidence of psychiatric illnesses. Cases of negative alteration in social status and problematical partnerships could be found in this subgroup. Drinking habits themselves did not differ from non suicide-prone alcoholics.

Improving Fatigue Life of Riveted Joints by Rivet Hole Sizing

2014 ◽  
Vol 598 ◽  
pp. 141-146
Author(s):  
Adam Lipski ◽  
Zbigniew Lis
Keyword(s):  
Fatigue Life ◽  
Fold Increase ◽  
Fatigue Tests ◽  
Aviation Industry ◽  
Lap Joint ◽  
Riveted Joints ◽  
Riveting Process ◽  
The Difference ◽  
Structural Connection ◽  
The Impact

The aim of this paper is to assess the impact of the rivet hole sizing process on the fatigue life based on the example of the structural connections characteristic for riveted joints used in aviation industry. Test specimens reflected the structural connection consisting in a riveted lap joint of an airplane plating stiffened with a T-bar. Connected plates and the T-bar are made of D16CzATW aluminum alloy. 3 mm diameter oval head solid rivets for aviation-related purposes were made of PA24 aluminum. During fatigue tests, individual specimens with non-sized holes and with sized holes were subjected to uniaxial, one-sided, fixed-amplitude loading (R = 0). It can be concluded from the fatigue life comparison that introduction of an additional operation in the riveting process, i.e. the hole sizing, results in significant, about two-fold increase of the fatigue life of the riveted structural connection, even at slight sizing degree. The difference of the specimen damage nature was observed between specimens with sized and non-sized holes.

scholarly journals Socialization, Connection, and The Structure/Agency Gap: A Specification of The Impact of Networks on Participation in Social Movements

2001 ◽  
Vol 6 (2) ◽  
pp. 173-192 ◽  
Author(s):  
Florence Passy
Keyword(s):  
Social Networks ◽  
Social Movement ◽  
Political Issue ◽  
Individual Preferences ◽  
Life History Data ◽  
Network Functions ◽  
Structural Connection ◽  
Movement Participation ◽  
The Impact

While numerous studies stress the crucial role of networks for social movement participation, they generally do not specify how networks affect individual behaviors. This article clarifies the role of social networks for individual social movement participation. It argues that networks perform three fundamental functions in the process leading to participation and that they intervene at different moments along this process. First, networks socialize and build individual identities—a socialization function. Second, they offer participation opportunities to individuals who are culturally sensitive to a specific political issue—a structural-connection function. Third, they shape individual preferences before individuals decide to join a move-ment—a decision-shaping function. These network functions allow us to disentangle the mechanisms at work in the process of participation. They also integrate structural and rationalist theories, which are often considered opposing explanations of individual movement participation. This article presents several hypotheses about these network functions, and uses both quantitative (survey) and qualitative (life history) data of participation in the Berne Declaration SMO to examine them.

scholarly journals Structural Connection between Activation Microswitch and Allosteric Sodium Site in GPCR Signaling

Structure ◽  
2018 ◽  
Vol 26 (2) ◽  
pp. 259-269.e5 ◽  
Author(s):  
Kate L. White ◽  
Matthew T. Eddy ◽  
Zhan-Guo Gao ◽  
Gye Won Han ◽  
Tiffany Lian ◽  
...  
Keyword(s):  
Gpcr Signaling ◽  
Structural Connection

scholarly journals Uncertainty analysis of constant amplitude fatigue test data employing the six parameters random fatigue limit model

2018 ◽  
Vol 165 ◽  
pp. 10016 ◽  
Author(s):  
Davide Leonetti ◽  
Johan Maljaars ◽  
H.H. (Bert) Snijder
Keyword(s):  
Fatigue Test ◽  
Test Data ◽  
Steel Beams ◽  
Constant Amplitude ◽  
Safety Level ◽  
Limit Model ◽  
Relevant Task ◽  
Structural Connection ◽  
Reduction Of Uncertainty ◽  
Random Fatigue

Estimating and reducing uncertainty in fatigue test data analysis is a relevant task in order to assess the reliability of a structural connection with respect to fatigue. Several statistical models have been proposed in the literature with the aim of representing the stress range vs. endurance trend of fatigue test data under constant amplitude loading and the scatter in the finite and infinite life regions. In order to estimate the safety level of the connection also the uncertainty related to the amount of information available need to be estimated using the methods provided by the theory of statistic. The Bayesian analysis is employed to reduce the uncertainty due to the often small amount of test data by introducing prior information related to the parameters of the statistical model. In this work, the inference of fatigue test data belonging to cover plated steel beams is presented. The uncertainty is estimated by making use of Bayesian and frequentist methods. The 5% quantile of the fatigue life is estimated by taking into account the uncertainty related to the sample size for both a dataset containing few samples and one containing more data. The S-N curves resulting from the application of the employed methods are compared and the effect of the reduction of uncertainty in the infinite life region is quantified.

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