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21 – 30 of over 4000
Article
Publication date: 4 May 2010

Jennifer (Min Ing) Loh, Simon Lloyd D. Restubog and Cindy Gallois

The purpose of this paper is to examine the moderating role of culture in the relationship between boundary permeability and cooperation and work group identification. In…

1012

Abstract

Purpose

The purpose of this paper is to examine the moderating role of culture in the relationship between boundary permeability and cooperation and work group identification. In addition, the levels of boundary permeability of Australians and Singaporeans are compared.

Design/methodology/approach

Survey questionnaires were administered to 134 employees (87 Singaporeans and 47 Australians) working in multinational corporations in both Australia and Singapore. Hierarchical moderated regression was used to test whether culture moderated the relationship between boundary permeability and cooperation and workgroup identification.

Findings

Results indicated that workplace boundary permeability was marginally and positively related to cooperation but not to workgroup identification. Further analysis revealed that culture moderated the relationships between workplace boundary permeability and cooperation and workgroup identification. Specifically, a stronger positive relationship was found between boundary permeability and these outcomes for Singaporeans as opposed to Australians.

Research limitations/implications

Limitations include the relatively small sample size of both cultural groups; the behavioral measure used to assess cooperation; and the self‐reported nature of the data.

Practical implications

The findings of this study have important practical implications for managers working in multinational corporations who seek to promote cooperation and workgroup identification among culturally diverse employees.

Originality/value

Guided by social identity and cross‐cultural theories, this study highlights the role of culture in predicting the attitudinal consequences of boundary permeability.

Details

Cross Cultural Management: An International Journal, vol. 17 no. 2
Type: Research Article
ISSN: 1352-7606

Keywords

Article
Publication date: 11 December 2017

Sungdoo Kim and Elaine Hollensbe

Given the prevalence of work interrupted by home-related matters, this paper aims to increase knowledge of the antecedents of work boundary permeability by investigating both…

1272

Abstract

Purpose

Given the prevalence of work interrupted by home-related matters, this paper aims to increase knowledge of the antecedents of work boundary permeability by investigating both individual and situational factors; and to better understand the consequences of work boundary permeability by examining both negative and positive effects using a finer-grained measure.

Design/methodology/approach

Data were obtained using two surveys from 308 full-time employees from an information technology firm in the Midwestern USA. Structural equation modeling was used to test hypotheses.

Findings

Individual differences in segmentation preferences (whether one prefers to keep work and home separated or integrated) and situational factors such as workload and home demands were found to predict work boundary permeability. Further, the results showed that maintaining a highly permeable work boundary may be detrimental rather than beneficial. High work boundary permeability led to greater time- and strain-based home-to-work conflict, but not to affective and instrumental positive spillover.

Originality/value

Unlike much previous work–home research focusing on how work intrudes on time outside of work, this study focuses exclusively on how the work domain is affected by intrusions from the home domain. The findings deepen the knowledge about today’s workplace that is subject to continual interruptions and spillover from home-related matters.

Article
Publication date: 12 October 2022

Fateme Sayanjali, Nazanin Ezazshahabi and Fatemeh Mousazadegan

The aim of the present study is to investigate the effect of fabric weave structure on air permeability and its relation with the garment ventilation.

Abstract

Purpose

The aim of the present study is to investigate the effect of fabric weave structure on air permeability and its relation with the garment ventilation.

Design/methodology/approach

For this purpose, five groups of cotton/polyester shirting fabrics with plain, T2/1, T2/2, T3/1 and T3/3 weave structures were studied. In order to evaluate ventilation, the garment samples were prepared in different sizes, so that the thickness of the air gap formed between the garment and the body simulator varies by zero, 1.5, 1.2 and 2.9 cm. The effect of wind and its speed (1, 2 and 3 m/s) on clothing ventilation has also been evaluated.

Findings

The results indicated that the rise of wind speed and air gap thickness, due to the increased convective heat transfer, would diminish the air gap temperature of clothing and improves its ventilation. In addition, the fabric weave pattern influences the air ability to pass through the fabric, thus affecting the ventilation capability of the garment.

Originality/value

Garments made of fabrics with higher structural firmness, such as the plain, not only have lower air permeability, but also has weaker ventilation capability.

Details

International Journal of Clothing Science and Technology, vol. 35 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 3 October 2022

Mladen Stančić, Dragana Grujić, Nemanja Kašiković, Branka Ružičić and Djordje Vujčić

The research aims to examine the varying influence of printed inkjet ink on the warm/cool feeling and air permeability of printed textile materials and thus on the thermal…

Abstract

Purpose

The research aims to examine the varying influence of printed inkjet ink on the warm/cool feeling and air permeability of printed textile materials and thus on the thermal properties of printed garments.

Design/methodology/approach

The influence of different number of printing pass and different tone value (TV) coverage was examined. The tested samples were printed with water-based pigment inkjet inks with 10, 50 and 100% TVs with one, three and five printing passes. The tested samples were subjected to thermal characteristics testing by measuring the warm/cool feeling and air permeability before and after printing.

Findings

The research results showed that there is an increase in the value of the warm/cool feeling by increasing the amount of applied ink on the textile material, which occurs by increasing the TVs and the number of printing pass. At the same time values of air permeability decrease by increasing the number of printing pass, as well as by increasing TVs.

Originality/value

Based on the results, mathematical models of the dependence of the warm/cool feeling value of printed textile materials on the air permeability and parameters of digital inkjet printing were created. These models are important in clothing design because they show in advance the values of the warm/cool feeling of the clothes being designed and thus enable the design of clothes for different purposes with optimal esthetic and thermal properties.

Details

International Journal of Clothing Science and Technology, vol. 35 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 10 May 2019

Shogo Fujita and Hajime Igarashi

The tensor complex permeability of a multi-turn coil with elliptic cross-section is analytically expressed. In field analysis, a multi-turn coil can be modeled by the uniform…

Abstract

Purpose

The tensor complex permeability of a multi-turn coil with elliptic cross-section is analytically expressed. In field analysis, a multi-turn coil can be modeled by the uniform material that has the present tensor complex permeability. It is shown that the frequency characteristic of the present tensor complex permeability is in good agreement with that evaluated by finite element method applied to a unit cell of the multi-turn coil region.

Design/methodology/approach

The authors introduce a new method to evaluate the complex permeability of a multi-turn rectangular coil. To obtain the complex permeability of a rectangular coil in a closed form, it is approximated as an elliptic coil. Because the rectangular coil has different complex permeabilities in the vertical and horizontal directions, the complex permeability have to be defined in a tensor form. It suffices to discretize the coil region into rather coarse finite elements without considering the skin depth in contrast to the conventional finite element method.

Findings

The proposed method is shown to give the impedance of multi-turn coils which is in good agreement with results obtained by the conventional finite element (FE) analysis. By extending the proposed approach, the authors can easily perform 3D FE analysis without difficulty in discretization of the coil region with fairly fine finite elements. Moreover, they found that the approximation of rectangular coils as the elliptic coils is valid for analysis of quasi-static fields using this homogenization method.

Originality/value

The novelty of this study is in the approximation of the rectangular coils with elliptic coils, and the complex permeability for them is formulated here in a closed form. The proposed formula includes that for the round coils. Using the present method, the authors analyze the rectangular coils without fine discretization.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 38 no. 3
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 5 May 2020

Sadaf Aftab Abbasi, Arzu Marmaralı and Gözde Ertekin

This paper investigates the thermal comfort properties of quilted (jersey cord) fabrics produced with different width of diamond pattern, different filling yarn linear density and…

Abstract

Purpose

This paper investigates the thermal comfort properties of quilted (jersey cord) fabrics produced with different width of diamond pattern, different filling yarn linear density and different types of material.

Design/methodology/approach

A total of 12 fabrics were knitted by varying the width of diamond pattern (1 and 3 cm), the filling yarn linear density (300 and 900 denier) and the type of materials (cotton, polyester and their combination). In this regard, air permeability, thermal conductivity, thermal resistance, thermal absorptivity and relative water vapor permeability of these fabrics were measured and evaluated statistically.

Findings

The results showed that fabrics knitted using cotton yarn in both front and back surfaces exhibit higher thermal conductivity, thermal absorptivity and relative water vapor permeability characteristics; whereas samples knitted using polyester yarn in both surfaces have higher air permeability and thermal resistance. As the linear density of filling yarn increases, thickness and thermal resistance of the samples increase and air permeability, thermal conductivity, water vapor permeability characteristics decrease. When the effect of the width of diamond pattern compared, it is seen that an increase in the width of pattern lead to an increase in thickness and thermal resistance and a decrease in thermal conductivity, thermal absorptivity and water vapor permeability values.

Originality/value

Many researches were carried out on the thermal comfort properties of knitted fabrics, however there is a lack of research efforts regarding thermal comfort properties of quilted fabrics.

Details

International Journal of Clothing Science and Technology, vol. 32 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 October 2019

Qian Li, Weihua Cai, Xiaojing Tang, Yicheng Chen, Bingxi Li and Ching-Yao Chen

The aim of this study is to numerically simulate the density-driven convection in heterogeneous porous media associated with anisotropic permeability field, which is important to…

Abstract

Purpose

The aim of this study is to numerically simulate the density-driven convection in heterogeneous porous media associated with anisotropic permeability field, which is important to the safe and stable long term CO2 storage in laminar saline aquifers.

Design/methodology/approach

The study uses compact finite difference and the pseudospectral method to solve Darcy’s law.

Findings

The presence of heterogeneous anisotropy may result in non-monotonic trend of the breakthrough time and quantity of CO2 dissolved in the porous medium, which are important to the CO2 underground storage.

Originality/value

The manuscript numerically study the convective phenomena of mixture contained CO2 and brine. The phenomena are important to the process of CO2 enhanced oil recovery. Interesting qualitative patterns and quantitative trends are revealed in the manuscript.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 30 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 24 August 2018

Krittiya Ongwuttiwat, Sudaporn Sudprasert and Thananchai Leephakpreeda

The purpose of this paper is to present the determination of human thermal comfort with wearing clothes, with different water vapor permeability. Currently, the predicted mean…

Abstract

Purpose

The purpose of this paper is to present the determination of human thermal comfort with wearing clothes, with different water vapor permeability. Currently, the predicted mean vote (PMV) equation is widely used to determine thermal sensation scales of human comfort. However, moisture permeability of clothes has been not taken in account where the heat is lost from a human body due to water vapor diffusion through clothes.

Design/methodology/approach

In this study, the heat loss is derived based on the real structure of textiles, causing water vapor pressure difference between air on skin and ambient air. The PMV equation is modified to differentiate a thermal sensation scale of comfort although patterns of clothes are the same. Interview tests are investigated with wearing clothes from three types of textiles: knitted polyester, coated nylon–spandex, and polyurethane, under various air conditions.

Findings

The moisture permeabilities of knitted polyester, coated nylon–spandex and polyurethane are 16.57×10−9 kg/m2 s•kPa, 9.15×10−9 kg/m2•s•kPa and 2.99×10−9 kg/m2•s•kPa, respectively. The interviews reveal that most people wearing knitted-polyester clothes have the greatest cold sensations under various air conditions since moisture permeability is the highest, compared to coated nylon–spandex, and polyurethane leather. Correspondingly, the predicted results of the modified PMV equation are close to the actual mean votes of interviewees with a coefficient of determination R2=0.83. On the other hand, the coefficient of determination from the predicted results of the conventional PMV equation is significantly lower than unity, with R2=0.42.

Practical implications

In practice, this quantitative determination on human thermal comfort gives some concrete recommendations on textile selection of clothes for acceptable satisfaction of thermal comfort under various surrounding conditions of usage.

Originality/value

The modified PMV equation effectively determines human comfort on a thermal sensation scale due to the moisture permeability of clothes. To make generic conclusion, experimental results of additional three textiles, such as plain weave/lining polyester, knitted spandex, and open structure polyester, are reported. They confirm that the modified PMV equation effectively determines human comfort on a thermal sensation scale due to the moisture permeability of clothes.

Details

International Journal of Clothing Science and Technology, vol. 30 no. 4
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 22 December 2020

Nur Adibah Binti Abdul Nasir, Ahmad Sanusi Hassan, Fatemeh Khozaei and Muhammad Hafeez Bin Abdul Nasir

Since the appearance of COVID-19 social distancing and staying home have been recommended repeatedly by the governments for disease prevention. As the challenge continues to…

Abstract

Purpose

Since the appearance of COVID-19 social distancing and staying home have been recommended repeatedly by the governments for disease prevention. As the challenge continues to remain the current study seeks to examine the factors affecting social distancing through space planning and management. More specifically the current study aims to examine the appropriateness of the spatial organization and space configuration of a clubhouse with a linear plan layout in the mitigation of the spread of infections due to serious pandemic COVID-19.

Design/methodology/approach

For an enhanced understanding of the impact of spatial arrangements of public spaces plan on the effective implementation of social distancing this study has used the space syntax analysis method. The MPSP clubhouse building in Penang, Malaysia was selected as the case study. The level of permeability and wayfinding were determined in the building plan and were illustrated using photoshop software to depict the interrelation between the indoor spaces and building circulation. Graphs of the depth of space were used to analyze the level of permeability and wayfinding to illustrate the possibility of social distancing in the plan.

Findings

The result of the study shows the significant role of proper plan layout design on social distancing. While clear and direct wayfinding can positively be associated with more effective social distancing, the inefficient design of user access, inappropriate locations of multiple entry and exit and indefinite directions of users' inside buildings can impose slight limitations. The average level of permeability might suggest ineffective spatial arrangement, ignoring the needs of spatial segregation. The study further found that the linear plan layouts with proper zoning and effective management strategies can be considered a proper layout to facilitate social distancing and the spread of COVID-19.

Originality/value

The current study is unique in terms of examination of the spatial configuration of linear public spaces plan layout for possible temporary adaptability to curb disease spread during the unexpected advent of a pandemic. Based on researchers' best of knowledge it is the first time that the impact of recreational space design on social distancing has been examined. The study also originally sheds light on the fact that the commonly used guideline for the social distancing of 1–2 m between 2 persons, in reality, is practically inadequate given the nature of the sports activities.

Details

International Journal of Building Pathology and Adaptation, vol. 39 no. 5
Type: Research Article
ISSN: 2398-4708

Keywords

Article
Publication date: 7 March 2016

Salvinija Petrulyte, Deimante Vankeviciute and Donatas Petrulis

The purpose of this paper is to investigate the physical properties of smart aromatherapic ramie/cotton terry fabrics containing microcapsules (MC) with essential Eucalyptus oil…

Abstract

Purpose

The purpose of this paper is to investigate the physical properties of smart aromatherapic ramie/cotton terry fabrics containing microcapsules (MC) with essential Eucalyptus oil.

Design/methodology/approach

Terry fabrics are manufactured by changing the weft density. The air permeability is determined for grey and microencapsulated textile. The factorial designs are made. For informative experiment the linear type of regression is analysed. Development of physical properties of microencapsulated terry fabrics is discussed.

Findings

The air permeability of aromatherapic terry fabrics is determined. All statistical analysis is performed. Appropriate conclusions about the influence of fabric’s structure and microencapsulating process on terry fabric quality are made.

Originality/value

To date there are no investigations concerning terry textiles with fragrance MC. This study developed analysis and empiric mathematical equations suitable for evaluating and designing terry fabrics with the air permeability required. Assessment of the influence of fabric’s weft density and binder concentration for the air permeability of terry textile is proposed.

Details

International Journal of Clothing Science and Technology, vol. 28 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

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