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Article
Publication date: 30 October 2020

Jiao-Long Zhang, Xian Liu, Yong Yuan, Herbert A. Mang and Bernhard L.A. Pichler

Transfer relations represent analytical solutions of the linear theory of circular arches, relating each one of the kinematic and static variables at an arbitrary cross-section to…

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Abstract

Purpose

Transfer relations represent analytical solutions of the linear theory of circular arches, relating each one of the kinematic and static variables at an arbitrary cross-section to the kinematic and static variables at the initial cross-section. The purpose of this paper is to demonstrate the significance of the transfer relations for structural analysis by means of three examples taken from civil engineering.

Design/methodology/approach

The first example refers to an arch bridge, the second one to the vault of a metro station and the third one to a real-scale test of a segmental tunnel ring.

Findings

The main conclusions drawn from these three examples are as follows: increasing the number of hangers/columns of the investigated arch bridge entails a reduction of the maximum bending moment of the arch, allowing it to approach, as much as possible, the desired thrust-line behavior; compared to the conventional in situ cast method, a combined precast and in situ cast method results in a decrease of the maximum bending moment of an element of the vault of the studied underground station by 46%; and the local behavior of the joints governs both the structural convergences and the bearing capacity of the tested segmental tunnel ring.

Originality/value

The three examples underline that the transfer relations significantly facilitate computer-aided engineering of circular arch structures, including arch bridges, vaults of metro stations and segmental tunnel rings.

Details

Engineering Computations, vol. 38 no. 3
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 8 November 2011

Rong Song, Xiaohui Jiao and Long Lin

The purpose of this paper is to investigate the effects of nano‐titanium dioxide and nano‐silicon dioxide particles on the mechanical and antimicrobial properties of denture base…

568

Abstract

Purpose

The purpose of this paper is to investigate the effects of nano‐titanium dioxide and nano‐silicon dioxide particles on the mechanical and antimicrobial properties of denture base resin.

Design/methodology/approach

Nano‐titanium dioxide and nano‐silicon dioxide particles were introduced to heat‐curing denture base resin to prepare composites. Electronic universal testing machine and friction tester were used to test tensile strength and frictional resistance properties of the samples prepared, respectively; also, film adhesion method was used to test the in vitro antimicrobial activity against Candida albicans and Streptococcus mutans.

Findings

Addition of nano‐titanium dioxide particles could improve the antimicrobial property of denture base resin, and addition of nano‐silicon dioxide particles could improve the tensile strength and frictional resistance of denture base resin. Mixture of the two nano‐particles, at a certain ratio, could improve the tensile strength, frictional resistance and antimicrobial property of denture base resin to a certain extent.

Practical implications

Nano‐titanium dioxide and nano‐silicon dioxide denture base resin composites were obtained. The mechanical and antimicrobial properties of the composites were improved compared to the raw denture base resin.

Originality/value

Nano‐titanium dioxide and nano‐silicon dioxide denture base resin composites with excellent performance could be obtained. Longer service life, greater hardness and clearness helped improve the patients' quality of life. Limited work with respect to the improved denture base resin was performed, which could form the theme of a future study. The outcomes of the research reported here set a new milestone in the field of denture base resin.

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Article
Publication date: 15 September 2020

Ottavio Palombaro

This paper aims to check the presence of such relationship in the field. Certain values are at stake for the success of economic behavior. Since the genesis of modern capitalism…

102

Abstract

Purpose

This paper aims to check the presence of such relationship in the field. Certain values are at stake for the success of economic behavior. Since the genesis of modern capitalism, a set of beliefs proper of Calvinism (mainly Predestination but also Beruf, inner-worldly asceticism, role of Sects […] ) was said by Max Weber to cause an anxiety about salvation and generate a propensity to economic success as a sign of election. The author argues on the contrary that the Calvinist belief in the Perpetual Assurance of Salvation might cause a sense of self-efficacy able to favor economic success. To observe this in action today, it is crucial to consider the evolution that the Protestant ethic went through migrating first in North America and, finally, through the Protestant revival of China. Wenzhou is called “Jerusalem of China” for its large Protestant community that is also strongly involved in business. Some scholar already pointed out the presence among those entrepreneurs of this Protestant ethic (Yi Xiang, Boss-Christian […]).

Design/methodology/approach

The data presented in this comparative qualitative study pertain to ethnographic observations, job-shadowing and interviews done among Chinese Christian and non-Christian entrepreneurs from Wenzhou living in Milan, Italy.

Findings

The results show, with some adjustments, the presence of a Chinese version of the Protestant ethic overlapping with several values proper to the Chinese context (Confucianism, lineage, social network). The extension of the study to other cases must be done with caution considering the non-causal justificatory role of the belief.

Originality/value

Successful entrepreneurship involves specific social, cultural and even religious aspects that move beyond mere business strategies.

Details

Journal of Entrepreneurship in Emerging Economies, vol. 13 no. 5
Type: Research Article
ISSN: 2053-4604

Keywords

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