Influence of sublimation process on air permeability and water absorption dynamics

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Brigita Kalendraite ◽  
Jolita Krisciunaite ◽  
Daiva Mikucioniene
Keyword(s):  
Water Absorption ◽  
Design Methodology ◽  
Air Permeability ◽  
Knitted Fabrics ◽  
Content Type ◽  
Sublimation Process ◽  
Textile Fabrics ◽  
High Temperature And Pressure ◽  
Before And After ◽  
Temperature And Pressure

PurposeThe purpose of this research was to find the influence of sublimation process on air permeability and water absorption dynamics of knitted and woven polyester-based fabrics.Design/methodology/approachThree different sublimation designs were prepared and applied (keeping the same sublimation parameters) for eight variants of knitted and four variants of woven polyester-based fabrics. Air permeability and water absorption dynamics during 180s period was measured and compared before and after the sublimation process.FindingsAccording to the obtained results, high temperature and pressure applied in sublimation process have influence on the porosity and air permeability of knitted fabrics; however, the influence on water absorption dynamics is minimal. Sublimation design dos not have any influence on the mentioned properties.Originality/valueThe obtained results of the sublimation process influence on air permeability and water absorption dynamics of knitted and woven polyester-based fabrics will help to understand how sublimation process can affect comfort properties of textile fabrics.

Investigation of stretch on air permeability of knitted fabric part I: effect of spinning system

2017 ◽  
Vol 29 (6) ◽  
pp. 754-767 ◽  
Author(s):  
Kumar K.V. ◽  
Sampath V.R. ◽  
Prakash C.
Keyword(s):  
Design Methodology ◽  
Research Work ◽  
Air Permeability ◽  
Knitted Fabrics ◽  
Content Type ◽  
The Core ◽  
Ring Yarn ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Made In

Purpose Air permeability of knitted fabrics is normally measured for the samples in their unstretched state. But, this air permeability values indicate the ability of these garments to allow air through them when they are not in use. But, the real-time condition is different and certainly the knitted garments mentioned above will subject to a degree of stretch during their usage. So, the measurement of air permeability under stretch and the fabric properties which would influence the air permeability of weft-knitted fabrics in their stretched state is of paramount importance. The paper aims to discuss these issues. Design/methodology/approach The aim of this research work is to investigate the change in air permeability values under the incremental extension of cotton tubular weft-knitted fabrics produced from the yarns of different spinning systems. Findings From the results, it is evident that the pique fabric samples of compact spun yarn displayed the highest air permeability values during the incremental stretch at all the three relaxation states. It is followed by the pique samples of ring spun yarn. Next to pique samples, the jersey samples made from the compact yarn and ring spun yarn revealed more air permeability, respectively. The core spun pique samples and core spun jersey samples displayed the least air permeability values, respectively. But, the pique and jersey samples made up of ring yarn and compact yarn showed gradual reduction in their air permeability towards the incremental stretch and the core spun pique samples and core spun jersey samples were uniformly seen with gradual increase in their air permeability during the incremental stretch. Originality/value Very limited quantity of research has been carried out in this area. So, a novel attempt has been made in this research work to investigate the influence of incremental stretch on air permeability of single knit structures.

Evaluation of compression-recovery and thermal characteristics of multilayer bedding textiles

2020 ◽  
Vol 32 (5) ◽  
pp. 631-643
Author(s):  
Sedat Özer ◽  
Yaşar Erayman Yüksel ◽  
Yasemin Korkmaz
Keyword(s):  
Thermal Conductivity ◽  
Sleep Quality ◽  
Thermal Comfort ◽  
Sleep Duration ◽  
Human Body ◽  
Design Methodology ◽  
Thermal Characteristics ◽  
Air Permeability ◽  
Content Type ◽  
Thermal Comfort Properties

PurposeDesign of bedding textiles that contact the human body affects the sleep quality. Bedding textiles contribute to comfort sense during the sleep duration, in addition to ambient and bed microclimate. The purpose of this study is to evaluate the effects of different layer properties on the compression recovery and thermal characteristics of multilayer bedding textiles.Design/methodology/approachIn this study, woven and knitted multilayer bedding textiles were manufactured from fabric, fiber, sponge and interlining, respectively. Different sponge thickness, fiber and interlining weight were used in the layers of samples. Later, the pilling resistance, compression and recovery, air permeability and thermal conductivity of multilayer bedding textiles were investigated.FindingsThe results indicated that samples with the higher layer weight and thickness provide better compression recovery and lower air permeability properties. It was also found that knitted surfaces show the higher air permeability than the woven surfaces depending on the fabric porosity. Layer properties have insignificant effect on the thermal conductivity values.Originality/valueWhile researchers mostly focus on thermal comfort properties of garments, there are limited studies about comfort properties of bedding textiles in the literature. Furthermore, compression recovery properties of bedding textiles have also a great importance in terms of comfort. Originality of this study is that these properties were analyzed together.

Reuse, recycle … reduce: a greener library with print management

2012 ◽  
Vol 30 (3) ◽  
pp. 408-417 ◽  
Author(s):  
Megan E. Dempsey ◽  
Alex Palilonis
Keyword(s):  
Management System ◽  
Design Methodology ◽  
Content Type ◽  
Before And After ◽  
Practical Implications

PurposeThe purpose of this paper is to describe the implementation of a print management system to control costs and reduce waste associated with printing practices.Design/methodology/approachA paper collection study found that 8 percent of pages printed in the library were never claimed. A print management system was implemented requiring print jobs to be manually released by users. Statistics on toner lifespan and number of pages printed before and after the system was implemented were compared.FindingsThe print management system reduced the total number of pages printed in a semester by 32 percent from Fall 2009 to Fall 2011 and increased the lifespan of toner cartridges so they would perform more efficiently.Practical implicationsImplementing a print management system without charging students a printing fee reduces the amount of wasted paper and the costs associated with purchasing paper and toner for printing services.Originality/valueThe paper describes the implementation of a print management system in a library that has substantially reduced the number of pages printed from library computers and the amount of toner used. The authors believe they have made a significant impact on reducing a primary area of waste.

Effects of activity-based workspaces on employee belongingness

Facilities ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shang Gao ◽  
Sui Pheng Low ◽  
Hua Qian Gong
Keyword(s):  
Attachment Theory ◽  
Design Methodology ◽  
Sense Of Control ◽  
Content Type ◽  
Corporate Real Estate ◽  
Positive Sense ◽  
Before And After ◽  
Negative Effect ◽  
Open Plan

Purpose The purpose of this study is to investigate the effects of the activity-based workspace (ABW) on employee belonging. Place attachment theory (PAT) is used as a proxy to understand and measure the belongingness of employees to their physical workplaces. Design/methodology/approach A case study of a bank’s newly retrofitted ABW office is conducted, providing fresh perspectives on the effect of ABW on employee belonging. A questionnaire survey was used to understand employee belongingness. Surveys are conducted with employees of the bank (n = 100) who experienced the transition from the conventional open-plan office with designated seats to an ABW, to understand and compare the change in employee belonging after the transition, by studying the level of belonging achieved in the space before and after. Findings The results showed that there was a positive sense of belongingness amongst employees working in the ABW space, as per the PAT framework and an increased sense of belongingness compared with the previous conventional open-plan office. However, ABWs were found to also have a negative effect on employees’ sense of control and security. Originality/value Maslow’s hierarchy of needs indicates that a feeling of belonging is fundamental to humans. The need for belonging is also applicable in the workplaces of today’s progressive corporate organisations, where there is increased pressure and incentive to appeal to and retain talent. This research was conducted in response to the huge growth in interest in activity-based working across the corporate real estate community. As there has been no prior research done in the area of the emotional need for belongingness in ABW.

Characterization of structure and air permeability of aromatherapic terry textile

2016 ◽  
Vol 28 (1) ◽  
pp. 2-17 ◽  
Author(s):  
Salvinija Petrulyte ◽  
Deimante Vankeviciute ◽  
Donatas Petrulis
Keyword(s):  
Statistical Analysis ◽  
Physical Properties ◽  
Design Methodology ◽  
Air Permeability ◽  
Factorial Designs ◽  
Linear Type ◽  
Content Type ◽  
Mathematical Equations ◽  
Binder Concentration

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.

Enhancing forensic exposures in residency training

2019 ◽  
Vol 15 (1) ◽  
pp. 13-19
Author(s):  
Tobias Wasser ◽  
Saksham Chandra ◽  
Katherine Michaelsen
Keyword(s):  
Design Methodology ◽  
Psychiatry Residents ◽  
Content Type ◽  
Forensic Evaluations ◽  
Residency Programs ◽  
General Psychiatry ◽  
Before And After ◽  
Secondary Analyses ◽  
Forensic Setting ◽  
The Impact

Purpose The purpose of this paper is to review the impact of a new, brief forensic rotation for general psychiatry residents on the variety of residents’ forensic exposures. Design/methodology/approach The authors surveyed residents who trained before and after the implementation of the new rotation to assess the impact of the rotation on the residents’ forensic experiences during training across a variety of domains. Findings Even in a highly clinical forensic setting, residents participating in the required rotation reported significantly greater variety of forensic experiences than those who had not completed the required rotation, including types of settings and assessments, Rotation completers reported greater exposure to various types of settings and assessments, and courtroom-related experiences, as well as the overall number of forensic exposures. The two groups did not differ in their forensic exposures in general psychiatry settings, civil-forensic evaluations or diverse forensic populations. Secondary analyses showed that increased exposure to court-based experiences and multiple forensic settings was associated with forensic fellowship interest. Originality/value This study demonstrates that a brief, mandatory forensic clinical rotation may increase residents’ exposure to forensic settings, assessments and courtroom-related experiences and that increased exposure to courtroom-based experiences in particular may increase interest in forensic fellowship. While not surprising, the results demonstrate that residents were not otherwise having these forensic experiences and that even time-limited forensic rotations can enhance the breadth of residents’ forensic exposures. Further, the rotation achieved these outcomes without using typical forensic sites but instead highly clinical sites, which may be particularly encouraging to residency programs without ready access to classic forensic rotation sites. This study contributes to the small but expanding body of the literature describing the value of increasing psychiatry residents’ training in clinical forensic psychiatry.

scholarly journals How to increase engagement on social media using the honeycomb model

2020 ◽  
Vol 27 (2) ◽  
pp. 153-167
Author(s):  
Susana Costa Silva ◽  
Wilian Feitosa ◽  
Paulo Duarte ◽  
Marta Vasconcelos
Keyword(s):  
Social Media ◽  
Social Engagement ◽  
Design Methodology ◽  
Convenience Sample ◽  
Content Type ◽  
The Social ◽  
Before And After ◽  
A Company ◽  
New Procedures ◽  
Practical Implications

Purpose The purpose of this paper is to understand how a company could improve public engagement on social media (SM) analysing the case of Alento, which is a human resources and consulting company located in Portugal. The company’s presence on Facebook was analysed by using the honeycomb model for SM functionality, by Kietzmann et al. (2011), as a theoretical framework. Design/methodology/approach The authors implemented some actions to change procedures on SM management. Monitoring five months of data, the authors could compare the SM engagement before and after changes on SM management. Then, a convenience sample of 205 useable questionnaires was collected. The population of the study comprised Portuguese Facebook users who liked the Alento Facebook Fan Page. An analysis of honeycomb dimensions was performed. Findings The engagement level on Alento’s SM was increased by changing procedures identified on survey. In five months, Alento’s number of followers was increased by just 4.5 per cent, interactions were increased by 35 per cent, views were more than twice (+122 per cent) and fans who clicked on Alento’s Facebook page’s links were increased by 146 per cent. Research limitations/implications There were also some limitations related to the sample, since the authors only obtained 205 responses. Therefore, the second suggestion for future investigations would be to conduct the survey on a larger number of people. This study just considers five months after changing procedures. A longer range of time could produce different results. Practical implications The most relevant contribution of the current study is the offer of some insights into the use of a simple tool such as the honeycomb model of Kietzmann et al. (2011) for the analysis of the social engagement from a firm’s perspective, regardless of their nature. Social implications The importance of SM to spread good content and to reduce media costs is reinforced in this study. Originality/value This study is innovative, as it identifies a need of change on SM management, proposes and implements new procedures, checking its results. SM marketing is a new wagon of study, and the problem of how to increase engagement on professional SM is on top priorities of the field.

Study of Reed Leaf Fibers’ Degumming in High Temperature and Pressure

2013 ◽  
Vol 652-654 ◽  
pp. 1566-1570
Author(s):  
Hou Jie Zhao ◽  
Chun Yan Wei ◽  
Yong Zhu Cui ◽  
Li Hua Lv ◽  
Xiao Wang
Keyword(s):  
High Temperature ◽  
Sodium Hydroxide ◽  
Treatment Condition ◽  
Holding Time ◽  
Optimal Conditions ◽  
Orthogonal Method ◽  
High Temperature And Pressure ◽  
Before And After ◽  
Temperature And Pressure ◽  
Degumming Process

In order to make the reed leaf fiber soft, increase its separating degree and remove impurities, the method of pretreatment in removing impurity was studied. The orthogonal method was used to optimize the treatment condition and the optimal conditions were obtained at a concentration of sodium hydroxide of 18g/L, treating temperature of 100°C and holding time of 90min. It also revealed that temperature holding time had the greatest influence on the degumming effect of the fibers. Under these conditions, the content of pectin and hemicellulose could reach about 2.6% and the content of cellulose could come up to 92.8%. Furthermore, the binary quadratic orthogonal regressive experiment was used to optimize the degumming process. The longitudinal directions of the fibers were examined by SEM before and after the processing.

scholarly journals Accrual and real-based earnings management by UK acquirers

2017 ◽  
Vol 13 (4) ◽  
pp. 492-519 ◽  
Author(s):  
Talie Kassamany ◽  
Salma Ibrahim ◽  
Stuart Archbold
Keyword(s):  
Corporate Governance ◽  
Earnings Management ◽  
Design Methodology ◽  
Content Type ◽  
Corporate Governance Code ◽  
Management Behaviour ◽  
Before And After ◽  
Logistic Regressions ◽  
The Uk ◽  
Practical Implications

Purpose This study aims to investigate the occurrence of pre-merger earnings management for a sample of 197 stock- and cash-financed UK acquirers between 1990 and 2009. It also examines the earnings management behaviour around the change in the Corporate Governance Code in 2003 based on the Higgs recommendations. Design/methodology/approach Mean and median accrual- and real-based manipulation are examined in the period before the announcement of a merger and acquisition. These are compared across stock and cash acquirers as well as before and after the implementation of the Higgs recommendations. Logistic regressions are also run to examine accrual- and real-based manipulation across stock and cash acquirers after controlling for variables that may affect the acquisition type. Findings The study found some evidence of upward pre-merger accrual-based earnings management by stock-financed acquirers, which is in line with the findings of Botsari and Meeks (2008). Furthermore, no significant changes were found in the post-Higgs period, which indicates that the recommendations put forth by Higgs may not have been successful in mitigating earnings management. The evidence also shows that cash bidders engage in pre-merger real earnings manipulation through lower discretionary expenses, possibly to enhance cash availability for the bid. Practical implications The findings in this study confirm earnings management exists around mergers and acquisitions and provide some evidence that the recommendations set out in the Higgs Report do not appear to have mitigated earnings management activities. This is of interest to regulators as well as investors and academicians. Originality/value This provides the first analysis in the UK examining the use of real-based earnings management activities by UK acquirers. It also extends prior research around corporate governance changes that occurred in the UK.

The impact of financial safety act and corporate governance on the level of financial disclosure

2016 ◽  
Vol 58 (6) ◽  
pp. 618-633 ◽  
Author(s):  
Ali Ahmadi ◽  
Abdelfettah Bouri
Keyword(s):  
Corporate Governance ◽  
Design Methodology ◽  
Stock Exchange ◽  
Financial Disclosure ◽  
Content Type ◽  
Study Results ◽  
Before And After ◽  
The Subject ◽  
High Level ◽  
The Impact

Purpose This research paper aims to identify and measure the contribution of the financial safety act (FSA) regulation in improving the level of financial disclosure of listed Tunisian firms. To answer the problems of the subject, the authors tried to hold accountable several determinants of the level of financial disclosure relating to the particular characteristics of the firm, and the adoption of the recommendations envisaged by the FSA, as likely to have an impact on the level of financial disclosure of Tunisian firms. Design/methodology/approach With a sample composed by 20 companies during the period from 2003 to 2010 (160 observations), the contribution of the FSA regulation in improving the level of financial disclosure of listed Tunisian firms was identified and measured. After that, the levels of financial disclosure before and after the FSA were compared. Findings The study results confirm the positive and significant effect of the FSA on the level of financial disclosure. This impact seems to appear through the improvement of the disclosure level during the years which follow the adoption of the new regulation. The results of this study also show that firms with a high level of financial disclosure are those which have an independent board of directors, auditor BIG and joint audit. Originality/value This paper is devoted to evaluate the impact of the FSA n°2005-96 and corporate governance on the level of financial disclosure. The empirical study relates to a sample of 20 firms listed on the Tunis Stock Exchange observed over the period 2003-2010.

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