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Article
Publication date: 12 January 2024

Qing Jiang, Yuhang Wan, Xiaoqian Li, Xueru Qu, Shengnan Ouyang, Yi Qin, Zhenyu Zhu, Yushu Wang, Hualing He and Zhicai Yu

This study aims to evaluate the thermal performance of sodium alginate (SA) aerogel attached to nano SiO2 and its radiative cooling effect on firefighting clothing without…

Abstract

Purpose

This study aims to evaluate the thermal performance of sodium alginate (SA) aerogel attached to nano SiO2 and its radiative cooling effect on firefighting clothing without environmental pollution.

Design/methodology/approach

SA/SiO2 aerogel with refractory heat insulation and enhanced radiative cooling performance was fabricated by freeze-drying method, which can be used in firefighting clothing. The microstructure, chemical composition, thermal stability, and thermal emissivity were analyzed using Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analyzer and infrared emissivity measurement instrument. The radiative cooling effect of aerogel was studied using thermal infrared imager and thermocouple.

Findings

When the addition of SiO2 is 25% of SA, the prepared aerogel has excellent heat insulation and a high radiative cooling effect. Under a clear sky, the temperature of SA/SiO2 aerogel is 9.4°C lower than that of pure SA aerogel and 22.1°C lower than that of the simulated environment. In addition, aerogel has more exceptional heat insulation effect than other common fabrics in the heat insulation performance test.

Research limitations/implications

SA/SiO2 aerogel has passive radiative cooling function, which can efficaciously economize global energy, and it is paramount to environment-friendly cooling.

Practical implications

This method could pave the way for high-performance cooling materials designed for firefighting clothing to keep maintain the wearing comfort of firefighters.

Originality/value

SA/SiO2 aerogel used in firefighting clothing can release heat to the low-temperature outer space in the form of thermal radiation to achieve its own cooling purpose, without additional energy supply.

Graphical abstract

Details

Pigment & Resin Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 11 January 2021

Hualing He, Yushu Wang, Jinru Liu, Ning Zhou, Yuhang Zhao and Zhicai Yu

This paper aims to investigate the dyeability of tussah silk fabric with lotus seedpod extract as the source of nontoxic and eco-friendly dyestuffs and functional agent.

Abstract

Purpose

This paper aims to investigate the dyeability of tussah silk fabric with lotus seedpod extract as the source of nontoxic and eco-friendly dyestuffs and functional agent.

Design/methodology/approach

Mordant free dyeing method was carried out using citric acid (CA) as the cross-linking agent to link the fibre and dye molecules. First, the natural pigment of oligomeric procyanidins was extracted from the lotus seedpod and then used to dye the tussah silk fabric. After the dyeing process, the dyed samples were treated with CA solution under different concentrations to improve the colour fastness.

Findings

The tussah silk fabric was successfully coloured in reddish brown through the dyeing process and charactered by using Fourier-transform infrared spectroscopy spectrometer. Moreover, lotus seedpod extract could impart excellent UV protection ability to the dyed samples, and UPF values reached up to 2000. CA dosage influenced the colour characteristics, UV protection and anti-wrinkling performance. The optimum dosage of CA was 7% (Wt.%). In addition, dyed silk fabric showed good antibacterial activity and the calculated bacteriostatic rate against Escherichia coli and Staphylococcus aureus were 83.27 and 60.2%, respectively.

Practical implications

This bio-dyeing strategy provided a simple and effective method for sustainable tussah silk fabric dyeing process.

Originality/value

This paper provides a novel dyeing strategy for mordant free dyeing and functionalization of tussah silk fabric, with lotus seedpod extract as natural pigment and CA as cross-linking agent to link the fibre and dye molecules.

Details

Pigment & Resin Technology, vol. 50 no. 6
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 16 August 2022

Zhao Yuhang, Zhicai Yu, Hualing He and Huizhen Ke

This study aims to fabricate a multifunctional electromagnetic interference (EMI) shielding composite fabric with simultaneous high-efficiency photothermal conversion and Joule…

Abstract

Purpose

This study aims to fabricate a multifunctional electromagnetic interference (EMI) shielding composite fabric with simultaneous high-efficiency photothermal conversion and Joule heating performances.

Design/methodology/approach

A multifunctional polypyrrole (PPy) hydrogel/multiwalled carbon nanotube (MWCNT)/cotton EMI shielding composite fabric (hereafter denoted as PHMC) was prepared by loading MWCNT onto tannin-treated cotton fabric, followed by in situ crosslinking-polymerization to synthesize three-dimensional (3D) conductive networked PPy hydrogel on the surface of MWCNT-coated cotton fabric.

Findings

Benefiting from the unique interconnected 3D networked conductive structure of PPy hydrogel, the obtained PHMC exhibited a high EMI-shielding effectiveness vale of 48 dB (the absorbing electromagnetic wave accounted for 84%) within a large frequency range (8.2–12.4 GHz). Moreover, the temperature of the laminated fabric reached 54°C within 900 s under 15 V, and it required more than 100 s to return to room temperature (28.7°C). When the light intensity was adjusted to 150 mW/cm2, the PHMC temperature was about 38.2°C after lighting for 900 s, indicating high-efficiency electro-photothermal effect function.

Originality/value

This paper provides a novel strategy for designing a type of multifunctional EMI shielding composite fabric with great promise for wearable smart garments, EMI shielding and personal heating applications.

Details

Pigment & Resin Technology, vol. 53 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Book part
Publication date: 7 October 2019

Most offender narrative being studied has been in oral forms, produced in the reciprocal process of researcher-(ex) offender interviews. This chapter offers an introduction to a…

Abstract

Most offender narrative being studied has been in oral forms, produced in the reciprocal process of researcher-(ex) offender interviews. This chapter offers an introduction to a variation of offender narrative study within the prison and rehabilitation context: the narrative of written autobiography. Since the early 1940s, Chinese reform institutions have required written autobiographies from new admitters, provided with clear presubscripted guidelines of instructions as well as postcensorship. For this chapter, we trace back and analyse this model based on 28 prisoners' autobiographies in mainland China between 2007 and 2009, as well as archive documents in different historical periods. We have found that the mandatory offender autobiographies are highly functional writings with clear requirements that embody the existing power structure. We have also found considerable commonality with findings in Western contexts on the presence and problems of narrative compliance in rehabilitation. We argue that narrative criminology should further engage in understanding the practice of narrative censorship and co-authorship in criminal justice processes, as it takes on different forms in different historical–social contexts.

Details

The Emerald Handbook of Narrative Criminology
Type: Book
ISBN: 978-1-78769-006-6

Keywords

Article
Publication date: 5 August 2019

Yating Chuang, Hualing Chiang and Anpan Lin

Drawing on mood regulation theories, the purpose of this paper is to examine the impact of employees’ coworker-helping behaviors (OCB-Is) on the relationships between prior…

1248

Abstract

Purpose

Drawing on mood regulation theories, the purpose of this paper is to examine the impact of employees’ coworker-helping behaviors (OCB-Is) on the relationships between prior negative affect and subsequent job satisfaction and creative performance. The authors hypothesize that employees’ work competence is a moderator of the relation between negative affect and OCB-Is.

Design/methodology/approach

Data were collected by the experience sampling method of self-rating (twice per day) and coworker-rating (once per day) over two weeks by 120 administrative employees and their coworkers in a university; 743 available days were obtained.

Findings

Multilevel modeling showed that self-rated negative affect during the morning was associated with coworker-rated OCB-Is during the afternoon; OCB-Is were positively associated with self-rated job satisfaction and coworker-rated creative performance during the afternoon; based on an indirect effect, OCB-Is mediated the relationships between negative affect and job satisfaction, and negative affect and creative performance; and employees with high-level work competences tended to engage in OCB-Is more than employees with low-level work competences when experiencing negative affect.

Originality/value

These findings suggest that OCB-Is create a positive reaction by converting negative affect into positive job satisfaction and creative performance and that employees’ work competence is the boundary condition.

Article
Publication date: 13 November 2017

Hualing Xie, Shengtao Wang, Xiaoli Chen and Jingjing Wu

The purpose of this paper is to gain an understanding of the current research on Internet-plus.

Abstract

Purpose

The purpose of this paper is to gain an understanding of the current research on Internet-plus.

Design/methodology/approach

The authors collected scholarly publications from the scientific databases Web of Science, Core Collection, Inspec and Compendex (Ei Village 2) and performed statistical analysis of the retrieved data from five perspectives.

Findings

The research on Internet-plus has obtained increasing attention in China. The top three research fields were social science, education and management.

Originality/value

The study will help researchers understand the current trends on Internet-plus.

Details

Information and Learning Science, vol. 118 no. 11/12
Type: Research Article
ISSN: 2398-5348

Keywords

Abstract

Details

Shipping Company Strategies
Type: Book
ISBN: 978-0-08-045806-9

Abstract

Details

Shipping Company Strategies
Type: Book
ISBN: 978-0-08-045806-9

Article
Publication date: 1 January 1981

ANN CAMPBELL

In 1938, the Civil Aeronautics Board (CAB) was established to regulate the fare and route structures of the domestic airline industry. At that time, policy‐makers were fearful…

Abstract

In 1938, the Civil Aeronautics Board (CAB) was established to regulate the fare and route structures of the domestic airline industry. At that time, policy‐makers were fearful that free market conditions in the airline industry would not foster the growth which was deemed to be optimal in the public interest. After forty years of industry development, however, the market structure of the airline industry does not provide justification for regulation. Furthermore, the regulation itself has created problems which are undesirable to both the industry and the public. On October 25, 1978, President Carter signed into law a bill that will gradually remove the regulatory restrictions under which interstate domestic airlines have operated since 1938. All regulatory control over the airlines will end by 1982, and the CAB will be abolished in 1985.

Details

Studies in Economics and Finance, vol. 5 no. 1
Type: Research Article
ISSN: 1086-7376

Book part
Publication date: 4 December 2018

Gisela Alves, Arnaldo Coelho and Vítor Roque

Many destination marketers organise events to draw economic benefits over the short and long term. However, this chapter suggests that events can result in more than economic…

Abstract

Many destination marketers organise events to draw economic benefits over the short and long term. However, this chapter suggests that events can result in more than economic benefits, as they can be used to improve a destination’s branding and image. The authors explain how the organisation and implementation of successful events can enhance the destination’s attributes. They explore the consumer-based brand equity (CBBE) of the event and examine its relationship with other variables, including the destination’s image. Moreover, they maintain that music festivals can enhance the destination’s image and branding, particularly, when the visitors share their positive experiences with others. The authors make reference to two Portuguese events: NOS Primavera Sound event and NOS ALIVE. In conclusion, they imply that such music events are improving the brand equity among customers and adding value to the destination marketing of Portugal.

Details

The Branding of Tourist Destinations: Theoretical and Empirical Insights
Type: Book
ISBN: 978-1-78769-373-9

Keywords

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