Research on Load-Bearing Performance of I-Shaped Column under Cyclic Compression

2014 ◽  
Vol 904 ◽  
pp. 460-464
Author(s):  
Xiao Jing Chen ◽  
Ping Yang ◽  
Hu Wei Cui
Keyword(s):  
Theoretical Analysis ◽  
Axial Compression ◽  
Perfect Match ◽  
Theoretical Method ◽  
Vertical Deflection ◽  
Load Bearing ◽  
Compression Load ◽  
Cyclic Compression ◽  
Comparison Of The Results ◽  
The Relationship

This paper presents a theoretical method to analyze the load bearing capability under cyclic axial compression load. The relationship between axial force and vertical deflection of I-shaped column is obtained by theoretical analysis and derivation. To verify the method and formulas of the paper, an illustrative example column is analyzed by the presented theoretical method and FEM to discuss the deflection performance and load bearing capability. The comparison of the results indicates perfect match between theoretical and numerical ones. It is shown that the theoretical analysis is feasible and reasonable.

Synchronized Hydraulic Bulging Forming Technology of Three-Layer-Metal Tubes

2010 ◽  
Vol 143-144 ◽  
pp. 1059-1064
Author(s):  
Wei Wei Wang ◽  
Jian Li Song ◽  
Jing Bo Yu ◽  
B.B. Jia
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Theoretical Analysis ◽  
Main Process ◽  
Forming Process ◽  
Element Analysis ◽  
Forming Technology ◽  
Comparison Of The Results ◽  
Hydraulic Bulging ◽  
The Relationship

Synchronized hydraulic bulging forming technology on three-layer-metal tubes was studied. The possibility of three-layer-metal tubes formed by hydraulic bulging method was discussed and proved by elastic-plastic theory. The calculation formulas about the bulging pressure, the residual contact stress and the relationship between them were derived and the main process parameters were analyzed. Finite element analysis was carried out on bulging forming process using MSC. Marc. Practical bulging forming experiments were conducted and well compounded three-layer-metal tubes with tight interfaces were obtained. Through the comparison of the results of theoretical analysis, numerical simulation and practical experiments, proper parameters for the bulging process were obtained and the theoretical analysis was verified and proved.

Footfall Deflection of Antifatigue Flooring During Simulated Human Stance

2020 ◽  
pp. 106480462097573
Author(s):  
Jackie D. Zehr ◽  
Taylor B. Winberg ◽  
Andrew C. Laing ◽  
Jack P. Callaghan
Keyword(s):  
Polynomial Function ◽  
Vertical Deflection ◽  
Shore Hardness ◽  
Third Order ◽  
Compression Load ◽  
Single Leg Stance ◽  
Order Polynomial ◽  
Standardized Measurement ◽  
The Relationship

This study quantified the effect of compression load and duration on the deflection of five separate antifatigue flooring surfaces. Following standardized measurement of A Shore hardness, each sample underwent simulated single-leg stance indentation procedures that differed by compression load (45.3 kg, 90.7 kg, 136.1 kg) and duration (initial = 2.5 s, intermediate = 6.25 s, final = 12.5 s). Vertical deflection was compared across conditions, and the relationship between A Shore hardness and deflection was characterized. When compressed with 45.3 kg, deflection was not influenced by duration, but at 136 kg, deflection differed between durations by up to 15%. The relationship between A Shore hardness and deflection was characterized by a third-order polynomial function ( R2 > 0.991).

Microprocessor Architecture Era for Development Cloud Computing of Ministry of Electricity and Energy of Egypt

2014 ◽  
Vol 13 (12) ◽  
pp. 5199-5209
Author(s):  
Heba A. El-Khobby ◽  
Mostafa M. AbdElnaby ◽  
Abdel-Aziz Ibrahim Mahmoud HASSANIN ◽  
Abdallah D. Maziad
Keyword(s):  
Information Technology ◽  
Cloud Computing ◽  
Theoretical Analysis ◽  
Organization Structure ◽  
Fixed Time ◽  
Organization Structures ◽  
Competence Evaluation ◽  
Competency Based ◽  
Services Evaluation ◽  
The Relationship

A development and evaluation the Cloud Computing (ClComp) of Ministry of Electricity and Energy of Egypt (MEEE) is presented in this paper. In order to be able to judge whether the ClComp of MEEE is competence, there is a need to develop criteria which performance can judged. Competency based standards and the ability to perform the activities within an occupation to the standard expected in the organization structure are presented. The key objective of Cloud Computing is to integrate Authorized Groups (AuthGs) development with the needs of the organization structures of MEEE. The ClComp of MEEE was developed jointly between the telecommunication information technology and ClComp services. Evaluation enables participant to distinguish between AuthGs centered view and a customer centered view of cloud computing of MEEE is competence evaluation. Recognize the main types of evaluation, explain the purpose of evaluation compare the approaches to cloud computing evaluation and review the relationship between the process and policy of evaluation are investigated. Microprocessor architecture presented an optimistic view of multicore scalability to develop the ClComp. Moreover this paper investigates the theoretical analysis of multiprocessor developing and scalability. The analysis was based on the laws of Amdahl's, Gustafson's, Hill's and Marty for fixed-workload condition. Moreover, challenged the difficulties to develop better cloud computing is taken into account. Also, multicore analysis of ClComp scalability, performance and power under fixed-time and memory-bound conditions are studied. These results complement existing studies and demonstrate that ClComp architectures are capable of extensive scalability and developing.

From self-evident norms to contingent couplings: A systems-theoretical analysis of changes in the relationship between schools and the function systems in Denmark

2021 ◽  
pp. 147490412110097
Author(s):  
Niels Åkerstrøm Andersen ◽  
Justine Grønbæk Pors
Keyword(s):  
Theoretical Analysis ◽  
Education System ◽  
Teaching Profession ◽  
School Governance ◽  
World Society ◽  
Historical Account ◽  
And Function ◽  
The Relationship ◽  
Point Of Departure

Taking a point of departure in the paradoxical fact that the increase in educational knowledge leads to an increase in uncertainty for educational organisations, this article explores how uncertainty and contingency have increasingly become an integral part of school governance. The article draws on Niklas Luhmann’s theory of ‘World Society’ as a functional differentiated society providing a range of different symbolic media for educational organisations. To trace the increase in the complexity of governing, we provide a historical account of the shifting couplings between schools and function systems. We show how the school becomes linked to an increasing number of symbolic media so that education becomes only one out of many other concerns. The article studies the consequences these shifting couplings have for how schools are governed and how they are expected to self-manage their relationship to different function systems. The article adds to existing studies of how education has become more and more differentiated with the argument that this has also led to new forms of couplings between schools and the education system with a number of important implications for the teaching profession.

Re-designation of Ethnic Muslims as Bosniaks in Montenegro

2016 ◽  
Vol 31 (1) ◽  
pp. 137-157
Author(s):  
Mehmed Đečević ◽  
Danijela Vuković-Ćalasan ◽  
Saša Knežević
Keyword(s):  
Twentieth Century ◽  
Social Constructivism ◽  
Continuous Exposure ◽  
Slow Dynamics ◽  
Muslim Population ◽  
Elite Theory ◽  
Analogous Process ◽  
Positive Sentiment ◽  
Comparison Of The Results ◽  
The Relationship

The purpose of this article is to analyse the dynamics of the process of re-designation of ethnic Muslims as Bosniaks in Montenegro. Through a comparison with the analogous process in Serbia, certain specificities are indicated in the context of Montenegro. In line with the premises of the elite theory, we point to the divergent influence of the socially engaged members of the Slavic Muslim cultural corpus in Montenegro on the process of ethnic self-identification of Slavic Muslims in the country. The willingness of a part of this corpus to adhere to the views of the elite part of the population that opposed the ethnonym “Bosniak,” and insisted on retaining the ethnic designation “Muslim,” is interpreted through the lens of social constructivism. The article indicates the formation of the socio-political constructs of “Montenegrin” and “Muslim” that occurred in the last decade of the twentieth century. These two constructs are interlinked; the former is superior as it has ethnic and ethical-political semantic layers, while the latter is subordinate, and it partially stems from the positive sentiment of Slavic Muslims towards Montenegro as the country they inhabit. The relationship between these constructs interferes with the process of accepting national Bosniakhood in a part of the Muslim population in Montenegro. A comparison of the results from the last two population censuses in Montenegro indicates a trend of acceptance of the ethnonym “Bosniak” among the Slavic Muslim population in Montenegro. However, given the slow dynamics of the process, affected by the continuous exposure to factors that increase its complexity, national divergence of Slavic Muslims in Montenegro will most likely prevail.

Analysis of visual impression based on Bra's basic components

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xingyu Wen ◽  
Jing Zhang ◽  
Mincheol Whang ◽  
Kaixuan Liu
Keyword(s):  
Design Methodology ◽  
Theoretical Method ◽  
Visual Design ◽  
Visual Features ◽  
Content Type ◽  
Visual Impression ◽  
Questionnaire Online ◽  
Design Idea ◽  
The Relationship ◽  
Practical Implications

PurposeThe purpose of this paper is to discuss the relationship between bra's visual impression and bra parts, and then to explore the application of visual impression in bra design.Design/methodology/approachFirstly, 82 female undergraduates are asked to answered this questionnaire online, which is about the importance of parts in bra design. In the part of data analysis, the method of principal part analysis (PCA) are used to get the relationship between bra's parts, and reduce dimension of factors that influence bra design. After that, those group of features are further discussed from the perspective of visual design. Finally, design an application based on conclusion.FindingsTo get the influence features of bra appearance and improve the visual design effect, this paper matches the bra parts with visual features (color, texture, shape and space) and presents four main features of bra design: “color,” “visual texture,” “design shape” and “spatial expression” together with corresponding bra parts and technique of expression. Moreover, user interface in bra cloud customization is designed.Practical implicationsThe conclusion, which shows the corresponding relationship between bra visual effect and its basic parts, has an important role in bra visual design. First, it can be useful for design idea with different technique of expression, which may supply a theoretical basis for design. Secondly, the combination of bra parts and visual features can be used to evaluate the appearance.Originality/valueDiscussing the bra visual impression based on bra's basic parts and visual features provides a theoretical method for bra design and its appearance evaluation.

Psychological, Pedagogical and Drganizational Peculiarities of the Development of Students’ Volitional Qualities as a Factor of Success in Learning

2021 ◽  
Author(s):  
Nadiia Vientseva ◽  
◽  
Oleva Karapetrova
Keyword(s):  
Higher Education ◽  
Theoretical Analysis ◽  
Empirical Study ◽  
University Students ◽  
Education Institution ◽  
Educational Material ◽  
Academic Achievements ◽  
The Impact ◽  
The Relationship ◽  
Development Of Students

The article reports the results of the empirical study of the impact of volitional qualities development on the level of academic achievements of higher education institution students. The article gives a theoretical analysis of the main types of volitional qualities that affect the assimilation of educational material by students. There was established the level of their development and the relationship with academic achievements. The article also identifies the main psycho-pedagogical and organizational peculiarities that affect the success of mastering the knowledge by university students. The psychological and pedagogical recommendations for forming, developing and supporting the volitional sphere of students are developed.

Experimental Study on Mechanical Behavior of Cold-Formed Steel Three Limbs Built-up Section Members

2010 ◽  
Vol 163-167 ◽  
pp. 651-654
Author(s):  
Tian Hua Zhou ◽  
Shao Feng Nie ◽  
Xiang Bin Liu ◽  
Guang Yi Li
Keyword(s):  
Experimental Study ◽  
Mechanical Behavior ◽  
Axial Compression ◽  
Local Buckling ◽  
Distortional Buckling ◽  
Torsional Buckling ◽  
Failure Characteristics ◽  
Compression Load ◽  
Cold Formed Steel ◽  
Flexural Torsional Buckling

18 specimens of cold-formed steel three limbs built-up section members are tested under axial compression load in this paper. The section forms are divided into two categories: A and B. Load-displacement (P-Δ) curves and failure characteristics of specimens are obtained. The results show that: As to section A members, the failure characteristics of LC, MC and SC series of specimens are flexural-torsional buckling, torsional buckling and distortional buckling, local buckling and distortional buckling. As to section B members, the failure characteristics of LC, MC series of specimens are flexural buckling, while local buckling and distortional buckling for members of SC series.

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