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Article
Publication date: 27 February 2024

Shiqi Li

This study aims to uncover the underlying mechanism between the time length of We-media videos and customer satisfaction (CS)/participation (CP) based on experiential marketing…

Abstract

Purpose

This study aims to uncover the underlying mechanism between the time length of We-media videos and customer satisfaction (CS)/participation (CP) based on experiential marketing theory.

Design/methodology/approach

Two datasets were collected from Bilibili; 308 data were used with bootstrapping for multiple linear regressions (MLR) to test the hypotheses, and 2,670 data were used for structural equation modelling (SEM) to verify robustness.

Findings

Videos’ time length acts as both a price and provision element of experiential marketing. As a price element, its linear term affects CS negatively but CP positively. As a provision element, its quadratic term affects CS positively but CP negatively.

Practical implications

Marketing management personnel and video creators at Bilibili could optimise videos’ time length as suggested. We-media video platforms should encourage high-quality videos with sufficient time lengths to improve CS. Video creators could balance CS and CP, as suggested.

Originality/value

This research proposed platform, provision, price and propagation as experiential marketing elements concerning experiences in online virtual encounters. It found CS was affected positively by provision but negatively by price, whereas the opposite is true for CP. Time length affects CS/CP as both a price and provision element, which may explain the neglect of significant relationships between the time length and marketing performances of videos.

Details

Asia Pacific Journal of Marketing and Logistics, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1355-5855

Keywords

Article
Publication date: 1 March 1970

N.S.M. Cox and R.S. Davies

This paper outlines the proposals for alteration to the present proposed Standard and presents an alternative ‘Standard’ together with an example of the application of this…

Abstract

This paper outlines the proposals for alteration to the present proposed Standard and presents an alternative ‘Standard’ together with an example of the application of this Standard to the present British MARC record structure. The main aims of these alterations are:

Details

Program, vol. 4 no. 3
Type: Research Article
ISSN: 0033-0337

Article
Publication date: 1 July 2021

Seung-Han Yang and Kwang-Il Lee

The purpose of this study is to improve the accuracy of a fused deposition modeling three-dimensional (3D) printer by identifying and compensating for position-independent…

Abstract

Purpose

The purpose of this study is to improve the accuracy of a fused deposition modeling three-dimensional (3D) printer by identifying and compensating for position-independent geometric errors using a face-diagonal length test featuring a designed artifact and a Vernier caliper.

Design/methodology/approach

An artifact that does not require support when printing was designed and printed to allow performance of the face-diagonal length test. A Vernier caliper was used to measure the lengths of diagonals in the XY, YZ and ZX planes of the printed artifact specimen; this completed the face-diagonal length test. The relationships between position-independent geometric errors of the linear axes X, Y and Z and the measured diagonal lengths of the three planes were determined to identify geometric errors.

Findings

The approach was applied to a commercial fused deposition modeling 3D printer, and three position-independent geometric errors were rapidly identified. The artifact was re-printed after model-based compensation for these errors and the diagonal lengths were re-measured. The results were verified via coordinate measuring machine measurement of a simple test piece without and with model-based compensation for identified geometric errors. Furthermore, the proposed approach was applied to a commercial 3D printer.

Research limitations/implications

The measured diagonal lengths of the printed artifacts varied greatly. Thus, further studies should investigate the effects of printing materials and parameters on the length discrepancies of 3D printed artifacts.

Practical implications

A software-based compensation of identified position-independent geometric errors has to be used at commercial 3D printers for accuracy improvements of printed parts.

Originality/value

Thus, the approach is of practical utility; it can be periodically used to identify position-independent geometric errors and ensure that the 3D printer is consistently accurate.

Details

Rapid Prototyping Journal, vol. 27 no. 7
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 1 January 2024

Rilwan Kayode Apalowo, Mohamad Aizat Abas, Muhamed Abdul Fatah Muhamed Mukhtar, Fakhrozi Che Ani and Mohamad Riduwan Ramli

This study aims to investigate the reliability issues of microvoid cracks in solder joint packages exposed to thermal cycling fatigue.

Abstract

Purpose

This study aims to investigate the reliability issues of microvoid cracks in solder joint packages exposed to thermal cycling fatigue.

Design/methodology/approach

The specimens are subjected to JEDEC preconditioning level 1 (85 °C/85%RH/168 h) with five times reflow at 270°C. This is followed by thermal cycling from 0°C to 100°C, per IPC-7351B standards. The specimens' cross-sections are inspected for crack growth and propagation under backscattered scanning electronic microscopy. The decoupled thermomechanical simulation technique is applied to investigate the thermal fatigue behavior. The impacts of crack length on the stress and fatigue behavior of the package are investigated.

Findings

Cracks are initiated from the ball grid array corner of the solder joint, propagating through the transverse section of the solder ball. The crack growth increases continuously up to 0.25-mm crack length, then slows down afterward. The J-integral and stress intensity factor (SIF) values at the crack tip decrease with increased crack length. Before 0.15-mm crack length, J-integral and SIF reduce slightly with crack length and are comparatively higher, resulting in a rapid increase in crack mouth opening displacement (CMOD). Beyond 0.25-mm crack length, the values significantly decline, that there is not much possibility of crack growth, resulting in a negligible change in CMOD value. This explains the crack growth arrest obtained after 0.25-mm crack length.

Practical implications

This work's contribution is expected to reduce the additional manufacturing cost and lead time incurred in investigating reliability issues in solder joints.

Originality/value

The work investigates crack propagation mechanisms of microvoid cracks in solder joints exposed to moisture and thermal fatigue, which is still limited in the literature. The parametric variation of the crack length on stress and fatigue characteristics of solder joints, which has never been conducted, is also studied.

Details

Soldering & Surface Mount Technology, vol. 36 no. 2
Type: Research Article
ISSN: 0954-0911

Keywords

Article
Publication date: 5 January 2024

Neslihan Arslan and Eda Köksal

The goal of this narrative review was to look at the link between the Mediterranean diet (MD) and the telomere length. Furthermore, this study aims to understand the impact of the…

Abstract

Purpose

The goal of this narrative review was to look at the link between the Mediterranean diet (MD) and the telomere length. Furthermore, this study aims to understand the impact of the MD on obesity-related telomere length.

Design/methodology/approach

Relevant literature was reviewed to explore the potential influence of the MD on telomere length and its association with obesity.

Findings

The MD is one of the healthiest diets of all known dietary patterns, and it is also linked to the telomere length. Except for fruits and vegetables, the main findings for other MD components are inconsistent. In terms of antioxidant and antiinflammatory properties, using the MD as a weight loss approach is a good method. For predicting changes in obesity characteristics, the initial telomere length is critical. However, there are not many studies in the field that have looked at the MD as a weight loss approach and its link to the telomere length. As a result, more research is needed to understand these connections in various groups.

Originality/value

This study is unique since it examines the MD, telomere length and obesity-related consequences. This study examines the MD, telomere length and obesity to determine if the MD can help lose weight while maintaining telomere length. As there are few studies on MD weight loss and telomere length, the work emphasizes the need for greater research in this area. This study fills a research gap and improves the understanding of nutrition, telomere biology and obesity-related outcomes.

Details

Nutrition & Food Science , vol. 54 no. 2
Type: Research Article
ISSN: 0034-6659

Keywords

Book part
Publication date: 16 July 2019

Binod Guragai, Paul D. Hutchison and M. Theodore Farris

The purpose of this research study is to use a large sample of the US companies and investigate the impact of cash-to-cash cycle’s (C2C) length on company profitability and…

Abstract

The purpose of this research study is to use a large sample of the US companies and investigate the impact of cash-to-cash cycle’s (C2C) length on company profitability and liquidity in present and future periods and also examine whether such impact is dependent upon firm size or industry type. The authors investigate the association between C2C length and return on equity (ROE), as well as liquidity ratios for current and future years using linear regression models. The authors further examine such association for separate industries and explore the effect of size on the primary associations investigated. Consistent with prior literature, this study documents that C2C length is negatively (positively) associated with current profitability (liquidity). The authors also find that there is a significant negative association between C2C length and future profitability extending up to three years, but only for firms in the manufacturing industry. This research study shows that C2C length affects a firm’s current financial performance and managers should view C2C management as an important strategic tool. However, the authors caution that C2C management is not a “one size fits all” strategy and managers in smaller firms should pay close attention to their C2C cycle. The authors also show that firms in manufacturing industry will specifically benefit financially over long-term from C2C management. This article complements existing literature that examines the impact of working capital management on a firm’s financial performance and extends the literature by examining such relationship for different industries and firm sizes. Although the authors include various factors (e.g., firm size, leverage, growth, industry, year, and past performance) in regressions to control for observable differences among firms, there might be other unobservable differences that may have an effect on the results documented.

Book part
Publication date: 15 December 1998

B. G. Heydecker and N. Q. Verlander

The estimation of queue length and delays in queues that are oversaturated for some part of a study period is of substantial importance in a range of traffic engineering…

Abstract

The estimation of queue length and delays in queues that are oversaturated for some part of a study period is of substantial importance in a range of traffic engineering applications. Whiting’s co-ordinate transformation has provided the basis for several approaches to this. We analyse this approach and present an explicit form for the derivative of queue length with respect to time, which we then use to establish various properties. We also report the results of numerical comparisons with exact formulae for certain special cases and show that these offer little or no advantage over the co-ordinate transformation approximations and can be computationally impractical in study periods of moderate duration.

Details

Mathematics in Transport Planning and Control
Type: Book
ISBN: 978-0-08-043430-8

Article
Publication date: 12 September 2023

Chengxia Liu

Under the widely used testing methods for fabric bending behavior, only one result for one direction can be obtained by using one fabric which is low efficient. To obtain fabric…

Abstract

Purpose

Under the widely used testing methods for fabric bending behavior, only one result for one direction can be obtained by using one fabric which is low efficient. To obtain fabric bending anisotropy, it is necessary to conduct a great many testing experiments. The purpose of this paper is to investigate a novel, efficient and visual method that can measure fabric bending anisotropy.

Design/methodology/approach

Fabrics are first cut into special shapes with eight strips including four directions, 0°(warp direction), 90°(weft direction), 45 and 135°(true bias), then are put onto the self-designed instrument. After that a camera is used to take picture from the right above the prism. New parameters, projection area, projection length, projection length, falling height and falling index (S, L, H and I in short) are obtained. Furthermore, standard deviation of them (SDS, SDL, SDH and SDI in short) are extracted for the characterization of bending anisotropy.

Findings

Results show that the new method has good feasibility and S, L and I can be used to express fabric bending property well. Of all the four new parameters, SDL has the highest correlation with SD of bending length, SDS the second and SDH the third. That is, SDL can characterize bending anisotropy best. Taken convenience of data acquisition and correlation into consideration, bending length L is the best parameter. Average L and SDL in four directions can be combined to express the comprehensive bending behavior of fabrics.

Originality/value

The new method can measure and characterize both the fabric bending property and bending anisotropy. Besides its high efficiency, it can display fabric bending or bending anisotropy visually and directly.

Details

International Journal of Clothing Science and Technology, vol. 35 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 19 January 2023

Clare Farmer, Peter Miller, Nicholas Taylor and Ryan Baldwin

Patron banning is widely used in response to disorderly behaviours in/around licensed venues, but there has been limited analysis of specific policies. This paper explores key…

Abstract

Purpose

Patron banning is widely used in response to disorderly behaviours in/around licensed venues, but there has been limited analysis of specific policies. This paper explores key findings in relation to police-imposed barring notices in Western Australia (WA).

Design/methodology/approach

WA Police provided de-identified data for 4,023 barring notices imposed between 2011 and 2020 and offender records for each recipient, to 30 June 2020. The data were analysed to identify patterns and trends in relation to ban length, recipient type and associated offending.

Findings

Mean ban lengths increased across the period (from 4.46 months in 2015 to 6.82 months in 2019). Longer initial bans (of 6–12 months) were associated with a lower likelihood of a subsequent ban – with each additional month associated with an 11.4% increase in the likelihood of not receiving a second ban. Across the dataset, some notable anomalies were identified for individuals categorised as prolific offenders.

Originality/value

Research examining the effects of patron banning is limited but, to date, has generally not supported presumptions of improved patron behaviour. WA adopts an individualised approach to barring notice lengths, following review of the incident and offender. The findings suggest that, while barring policy is appropriate, a number of operational refinements can help WA Police to optimise their behavioural effect/s.

Details

Policing: An International Journal, vol. 46 no. 2
Type: Research Article
ISSN: 1363-951X

Keywords

Article
Publication date: 18 August 2022

Dipak Kumar Mandal, Nirmalendu Biswas, Nirmal K. Manna, Rama Subba Reddy Gorla and Ali J. Chamkha

This study aims to numerically examine the influence of various geometric parameters of a novel W-shaped porous cavity undergoing hybrid nanofluid-based magnetohydrodynamic mixed…

295

Abstract

Purpose

This study aims to numerically examine the influence of various geometric parameters of a novel W-shaped porous cavity undergoing hybrid nanofluid-based magnetohydrodynamic mixed convection. The W-shaped cavity is modified from the classical trapezoidal cavity by constructing a triangular shape at its bottom. This cavity is isothermally active at the bottom, with different numbers and heights of the triangular peak (or undulation). The heated hybrid nanofluid (Cu–Al2O3–H2O) flow is cooled through the translating top wall. Inclined sidewalls are thermally insulated. To compare the impacts of change in geometric parameters, a square cavity under similar boundary conditions is also simulated. This study is carried out systematically addressing the various influences from a range of parameters like side angles (γ), number (m) and height (λ) of the bottom undulation, Reynolds number (Re), Richardson number (Ri), Darcy number (Da), Hartmann number (Ha), hybrid nanoparticles volume fraction (φ) on the overall thermal performance of the cavity.

Design/methodology/approach

Applying the finite volume approach, the transport equations involving multiphysical conditions like porous substance, hybrid nanofluid, magnetic field and shearing force are solved numerically by using a written FORTRAN-based code following the SIMPLE algorithm. The algebraic equations are solved over all the control volumes in an iterative process using the alternate direction implicit scheme and the tri-diagonal matrix algorithm. The converged solution of the iterative process is obtained when the relative error levels satisfy the convergence criterion of 10–8 and 10–10 for the maximum residuals and the mass defect, respectively.

Findings

It is revealed that an increase in the bottom undulation height always improves the thermal energy transfer despite the reduction of fluid volume. Thermal energy transfer significantly depends on the heating and cooling surface lengths, fluid volume in the cavity and the magnitude of the bottom undulation height of the W-shaped cavity. With the increase in bottom undulation height, effective heating length increases by ∼28%, which leads to a ∼15% reduction in the effective volume of the working fluid and a gain in heat transfer by ∼56.48%. In general, the overall thermal energy transport is improved by increasing Re, Ri and Da; whereas it is suppressed by increasing Ha.

Research limitations/implications

There are many opportunities for future research experimentally or numerically, considering different curvature effects, orientations of the geometry, working fluids, boundary conditions, etc. Furthermore, this study could be extended by considering unsteady flow or turbulent flow.

Practical implications

In many modern systems/processes pertaining to materials processing, continuous casting, food processing, chemical reactors, biomedical applications, etc. fine control in the transport process is a major concern. The findings of this analysis can effectively be useful for other applications for getting more control features in terms of achieving the operational objectives. The approach of the system analysis (considering geometrical size parameters to delve into the underlying transport physics) and the obtained simulated results presented in the work can usefully be applicable to similar thermal systems/devices such as materials processing, thermal mixing, chemical reactors, heat exchangers, etc.

Originality/value

From the well-documented and vast pool of literature survey, it is understood that there exists no such investigation on the considered geometry and study. This study contributes a lot to understanding magnetic field moderated thermofluid flow of a hybrid nanofluid in a porous medium filled W-shaped cavity, in consideration of different geometrical shape parameters (undulation peak numbers at bottom wall, peak heights, side angles and heating and cooling length). Findings brought by this study provide great insights into the design and operation under various ranges of multiphysical thermofluid-flow processing phenomena.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

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