A Study of the General Method Used in Geotechnical Engineering Numerical Calculating Grid of CAD Graph Cutting

2012 ◽  
Vol 170-173 ◽  
pp. 3699-3705 ◽  
Author(s):  
Shang Wei Liu ◽  
Qun Wei ◽  
Kai Sun
Keyword(s):  
3D Modeling ◽  
Mechanical Characteristics ◽  
Geotechnical Engineering ◽  
Rock Cutting ◽  
Relationship Networks ◽  
Original Rock ◽  
Geometric Boundary ◽  
Material Division ◽  
The Relationship ◽  
General Method

The author, based on the rock mass’ 3D modeling and solid graphics cutting method, advances a from-whole-to-part and from-part-to-whole rock cutting technology, which takes the rock faults and joint fissure of the original rock graphics as the geometric boundary, and takes the rock material division as mechanical control boundary. Being a carrier of grid, each basic rock’s geometry characteristics, topological relations (angle, edge, face, body, etc) and mechanical characteristics (e、μ、c、φ、κ, etc.) are all attached to the rock mass’s graphics. The relationship networks of every block are also stored. Such a collection of orderly and related graphical blocks provides the most basic and general database for all kinds of numerical calculations in geotechnical engineering. It can conveniently generate grid system according to different calculating requirements. After being exercised and examined in several projects, it is proved to have a good application prospect.

Parent-Child Profile Similarity and Aggression: A Preliminary Study

1966 ◽  
Vol 18 (2) ◽  
pp. 440-442 ◽  
Author(s):  
James Neal Butcher ◽  
David M. Messick
Keyword(s):  
Teacher Ratings ◽  
Adolescent Aggression ◽  
Profile Similarity ◽  
Child Personality ◽  
Preliminary Study ◽  
Personality Similarity ◽  
The Relationship ◽  
Mmpi Profile ◽  
General Method ◽  
Parent Child

This investigation was directed toward studying the relationship between parent-child personality similarity and adolescent aggression and to illustrate the utility of a general method of assessing profile similarity suggested by Overall (1964). Peer and teacher ratings of aggression were used to group eighth-grade boys on manifest aggression. Ss and their parents (volunteers) were administered the MMPI. The d∗ measure of dissimilarity was used to compare parent-child profile configurations in the three aggression groups. Although the small and biased sample preclude major conclusions, the results support the use of the d∗ statistic for assessing MMPI profile similarity and suggest that further work in the area of parent-child personality similarity might be fruitful.

scholarly journals Research on the Impact of Relationship Networks on Farmers’ Formal Credit Constraints: The Case of China

2021 ◽  
Vol 11 (4) ◽  
Author(s):  
Lun-song Chen ◽  
Bi-Lin Sun
Keyword(s):  
Credit Constraints ◽  
Rural Households ◽  
Credit Constraint ◽  
Constraint Function ◽  
Relationship Networks ◽  
Social Interests ◽  
Relationship Network ◽  
The Impact ◽  
The Relationship

Based on the survey data of Lishui City, Zhejiang Province, this paper uses the Heckman two-stage model to construct a credit constraint function without selection bias, and explores the relationship between the scale and quality of the relationship network and the credit constraints of rural households. Research shows that the scale of the relationship network is affected adversely by urbanization and networking, having a weaker impact on the formal credit constraints of rural households. The quality of the relationship networks can improve farmers’ awareness of formal credit, reduce transaction exposure, regulate farmers’ behavior and act as a “guarantee”, thereby effectively alleviating farmers’ formal credit constraints. At the same time, the relationship network of farmers is gradually becoming more structured, where farmers' social interests are becoming more purposeful. Additionally, formal financial institutions have set a threshold for farmers’ credit, which requires a certain amount of securities for money.

Modal Velocity-Based Multiaxial Fatigue Damage Evaluation Using Simplified Finite Element Models

2020 ◽  
Vol 87 (11) ◽  
Author(s):  
Kurthan Kersch ◽  
Elmar Woschke
Keyword(s):  
Finite Element ◽  
Fatigue Damage ◽  
Cross Section ◽  
Multiaxial Fatigue ◽  
Finite Element Models ◽  
Damage Evaluation ◽  
Geometric Factors ◽  
The Relationship ◽  
General Method

Abstract This work proposes a new method for the fatigue damage evaluation of vibrational loads, based on preceding investigations on the relationship between stresses and modal velocities. As a first step, the influence of the geometry on the particular relationship is studied. Therefore, an analytic expression for Euler Bernoulli beams with a non-constant cross section is derived. Afterward, a general method for obtaining geometric factors from finite element (FE) models is proposed. In order to ensure a fast fatigue damage evaluation, strongly simplified FE-models are used for the determination of both factors and measurement locations. The entire method is demonstrated on three mechanical structures and indicates a better compromise between effort and accuracy than existing methods. For all examples, the usage of velocities and geometric factors obtained from simplified FE models enables a sufficient fatigue damage calculation.

The relationship between social capital and innovativeness climate in schools

2019 ◽  
Vol 34 (2) ◽  
pp. 232-244 ◽  
Author(s):  
Hanifi Parlar ◽  
Mahmut Polatcan ◽  
Ramazan Cansoy
Keyword(s):  
Social Capital ◽  
Professional Learning Communities ◽  
Learning Communities ◽  
Professional Learning ◽  
Social Relationship ◽  
Content Type ◽  
Relationship Networks ◽  
Intermediary Role ◽  
The Relationship

Purpose Professional learning communities that merge under the same goal in schools where social relationship networks are strong can contribute to creating an atmosphere which provides a basis for innovativeness. In this study the relationships between social capital, innovativeness climate and professional learning communities were examined through the views of teachers working at public schools. The paper aims to discuss this issue. Design/methodology/approach The data of this study, which utilised correlational survey model, were collected from 734 teachers who work in the Umraniye district of Istanbul, Turkey. Findings The findings revealed that there is a positive and statistically significant correlation between social capital, innovativeness climate and professional learning communities. The results demonstrated that teachers’ perceptions of social capital in schools affected their perceptions of innovativeness climate and that professional learning communities had an intermediary role in this relationship. These findings showed that the richness in social relationship networks provided a basis for the development of innovative teaching practices in schools and the professional learning environments created in schools contributed to this process. Research limitations/implications In this study, the intermediary role of professional learning communities on the effect of social capital on innovativeness climate was analysed via teachers’ views. In the literature no study studying the relationship between social capital, innovativeness climate and professional learning communities was found. Practical implications It can be put forward that there is a need for studies that analyse the effect of the roots of social capital on innovativeness culture to identify other variables that may potentially be relevant. In addition, this study may be a contribution to the literature by providing a study on the concepts of social capital and innovativeness climate, which were studied in the fields of social sciences extensively, in educational settings and this supports the field through theoretical and empirical studies. Originality/value This study demonstrated the effects of the concept of social capital on innovativeness climate which provides a basis for innovativeness in educational institutions. This topic is currently on the agenda of the OECD and World Bank. Moreover, this study aims to show the intermediary role of professional learning communities in the relationship between social capital and innovativeness climate.

The Relationship between Entropy and the Reliability Function in Application of Physical and Statistical Approach to Nanosystems

2020 ◽  
Vol 28 ◽  
pp. 93-111
Author(s):  
Vladislav Sergeevich Kozhevnikov ◽  
Igor Valerievich Matyushkin ◽  
Nikolay Vladimirovich Chernyaev
Keyword(s):  
Statistical Approach ◽  
Formal Solution ◽  
Reliability Function ◽  
Stationary Case ◽  
One Dimensional ◽  
Physical Intuition ◽  
Main Equation ◽  
Degradation Rates ◽  
The Relationship ◽  
General Method

The paper considers application of the physical and statistical approach to the issue of nanosystems reliability. A general method of solving the main equation in this approach is suggested and the solution in quadratures is obtained in one-dimensional stationary case. It is used to study the behaviour of entropy and the reliability function under certain assumptions. The cases of constant, linear, and quadratic degradation rates are analysed. In the first two cases the results correspond to physical intuition while in the last case (quadratic rate) the formal solution demonstrates counterintuitive behaviour. Numerical correlations between the distribution entropy dynamics and the reliability function are given.

Limit Analysis and Yield-Line Theory

1968 ◽  
Vol 35 (2) ◽  
pp. 357-362 ◽  
Author(s):  
Antoni Sawczuk ◽  
P. G. Hodge
Keyword(s):  
Limit Analysis ◽  
Single Point ◽  
Point Load ◽  
Simply Supported ◽  
Yield Line ◽  
Yield Line Theory ◽  
Line Theory ◽  
The Relationship ◽  
Line Analysis ◽  
General Method

The relationship between limit analysis and yield-line analysis is investigated. Attention is restricted to simply supported, isotropic slabs subjected to single-point loadings. It is found that conventional yield-line analyses quite often give substantial overestimates of the carrying capacity. A general method is formulated for finding the yield-point load, and various examples are considered.

Residual moveout in anisotropic angle-domain common-image gathers

Geophysics ◽  
2007 ◽  
Vol 72 (2) ◽  
pp. S93-S103 ◽  
Author(s):  
Biondo Biondi
Keyword(s):  
Real Data ◽  
Velocity Estimation ◽  
Aperture Angle ◽  
Data Set ◽  
3D Data ◽  
Wavefield Continuation ◽  
Transverse Isotropic ◽  
Phase Angles ◽  
The Relationship ◽  
General Method

I develop the fundamental concepts for quantitatively relating perturbations in anisotropic parameters to the corresponding reflector movements in angle-domain common-image gathers (ADCIGs) after anisotropic wavefield-continuation migration. The proposed theory potentially enables the application of residual moveout (RMO) analysis of ADCIGs to velocity estimation in realistic anisotropic conditions. I demonstrate that linearization of the relationship between anisotropic velocity parameters and reflector movements can be derived by assuming stationary raypaths. This assumption leads to a fairly simple analytical derivation. I then apply the general method to the particular case of RMO analysis of reflections from flat reflectors in a vertical transverse isotropic (VTI) medium. This analysis yields expressions to predict RMO curves in migrated ADCIGs. These RMO expressions are functions of both the phase aperture angle and the group aperture angle. Several numerical examples demonstrate the accuracy of the RMO curves predicted by my kinematic analysis. The synthetic examples also show that approximating the group angles with the phase angles in the application of the RMO expressions may lead to substantial errors for events reflected at wide aperture angles. The results obtained by migrating a 2D line extracted from a Gulf of Mexico 3D data set confirm the accuracy of the proposed method. The RMO curves predicted by the theory match the RMO function observed in the ADCIGs computed from the real data.

scholarly journals Some remarks concerning finitely Subadditive outer measures with applications

1998 ◽  
Vol 21 (4) ◽  
pp. 653-669 ◽  
Author(s):  
John E. Knight
Keyword(s):  
General Theory ◽  
Outer Measure ◽  
Additive Measure ◽  
Finitely Additive Measure ◽  
Set Functions ◽  
Relationship Of ◽  
The Relationship ◽  
General Method

The present paper is intended as a first step toward the establishment of a general theory of finitely subadditive outer measures. First, a general method for constructing a finitely subadditive outer measure and an associated finitely additive measure on any space is presented. This is followed by a discussion of the theory of inner measures, their construction, and the relationship of their properties to those of an associated finitely subadditive outer measure. In particular, the interconnections between the measurable sets determined by both the outer measure and its associated inner measure are examined. Finally, several applications of the general theory are given, with special attention being paid to various lattice related set functions.

3D Modeling of Complicated Geological Body in Numerical Software

2011 ◽  
Vol 255-260 ◽  
pp. 1895-1899
Author(s):  
Dong Ming Yu ◽  
Hai Lin Yao ◽  
Feng Guang Chen
Keyword(s):  
Numerical Calculation ◽  
Numerical Model ◽  
3D Modeling ◽  
Geotechnical Engineering ◽  
Modeling Method ◽  
Practical Significance ◽  
High Quality ◽  
Geological Body ◽  
Numerical Software ◽  
3D Numerical Model

This paper provides a simple and effective modeling method for complicated geological bodies in numerical software. By means of the most common tool software, the high quality 3d numerical model of the complicated geological body in the geotechnical engineering was built quickly and easily in the numerical software, ANSYS. Furthermore, this numerical model was reproduced in other numerical software, FLAC3D and ABAQUS. It is achieved that the 3d numerical model is shared among the numerical software, ANSYS, FLAC3D and ABAQUS and a basis is supplied for numerical calculation. The modeling method in this paper is of practical significance.

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