Search results

1 – 4 of 4
Article
Publication date: 8 May 2007

Tien‐Hsiang Chang, Hsin‐Pin Fu, Wan‐I Lee, Yichen Lin and Hsu‐Chih Hsueh

To propose and test an augmented collaborative planning, forecasting, and replenishment (A‐CPFR) model in a retailer‐supplier context with a view to improving forecasting accuracy…

4867

Abstract

Purpose

To propose and test an augmented collaborative planning, forecasting, and replenishment (A‐CPFR) model in a retailer‐supplier context with a view to improving forecasting accuracy and then reducing the “bullwhip effect” in the supply chain.

Design/methodology/approach

After a literature review, the paper presents a real case in which the present authors provided assistance. The description of the case includes: case company background; an “as‐is” model analysis; a “to‐be” (CPFR) model analysis; and a description of the results and potential benefits. The paper then proposes an A‐CPFR model for the case and performs a simulation of the new model for comparison with the existing CPFR model.

Findings

The results show that the mean absolute deviation of forecasting and the inventory variance are both better in the proposed model than in the existing CPFR model. The proposed model can thus improve the accuracy of sales forecasting, reduce inventory levels, and reduce the “bullwhip effect”.

Practical implications

In addition to information provided by the retailer, a logistics supplier should also obtain competitors' promotional information from the market as another factor for forecasting – thus enabling timely responses to demand fluctuations.

Originality/value

The proposed model is an original and useful development on the existing CPFR model. It could become a reference model for the retail industry in implementing CPFR in the future.

Details

Supply Chain Management: An International Journal, vol. 12 no. 3
Type: Research Article
ISSN: 1359-8546

Keywords

Article
Publication date: 25 January 2024

Xiaoxuan Lin, Xiong Sang, Yuyan Zhu and Yichen Zhang

This paper aims to investigate the preparation of AlN and Al2O3, as well as the effect of nano-AlN and nano-Al2O3, on friction and wear properties of copper-steel clad plate…

Abstract

Purpose

This paper aims to investigate the preparation of AlN and Al2O3, as well as the effect of nano-AlN and nano-Al2O3, on friction and wear properties of copper-steel clad plate immersed in the lubricants.

Design/methodology/approach

Nano-AlN or nano-Al2O3 (0.1, 0.2, 0.3, 0.4 and 0.5 Wt.%) functional fluids were prepared. Their tribological properties were tested by an MRS-10A four-ball friction tester and a ball-on-plate configuration, and scanning electron microscope observed the worn surface of the plate.

Findings

An increase in nano-AlN and Al2O3 content enhances the extreme pressure and anti-wear performance of the lubricant. The best performance is achieved at 0.5 Wt.% of nano-AlN and 0.3 Wt.% of nano-Al2O3 with PB of 834 N and 883 N, a coefficient of friction (COF) of approximately 0.07 and 0.06, respectively. Furthermore, the inclusion of nano-AlN and nano-Al2O3 particles in the lubricant enhances its extreme pressure performance and reduces wear, leading to decreased wear spot depth. The lubricating effect of the nano-Al2O3 lubricant on the surface of the copper-steel composite plate is slightly superior to that of the nano-AlN lubricant, with a COF reaching 0.07. Both lubricants effectively fill and lubricate the holes on the surface of the copper-steel composite plate.

Originality/value

AlN and Al2O3 as water-based lubricants have excellent lubrication performance and can reduce the COF. It can provide some reference for the practical application of nano-water-based lubricants.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2023-0255/

Details

Industrial Lubrication and Tribology, vol. 76 no. 2
Type: Research Article
ISSN: 0036-8792

Keywords

Article
Publication date: 21 August 2023

Yaobing Wei, Xuexue Wang, Jianhui Liu, Jianwei Li and Yichen Pan

Engineering composite laminates/structures are usually subjected to complex and variable loads, which result in interlayer delamination damage. However, damaged laminate may cause…

Abstract

Purpose

Engineering composite laminates/structures are usually subjected to complex and variable loads, which result in interlayer delamination damage. However, damaged laminate may cause the whole structure to fail before reaching the design level. Therefore, the purpose of this paper is to develop an equivalent model to effectively evaluate compressive residual strength.

Design/methodology/approach

In this paper, taking carbon fiber reinforced composite T300/69 specimens as the study object, first, the compressive residual strength under different impact energy is obtained. Then, zero-thickness cohesive elements, Hashin failure criteria and Camanho nonlinear degradation scheme are used to simulate the full-process simulation for compression after edge impact (CAEI). Lastly, based on an improved Whitney–Nuismer criterion, the equation of edge hole stress distribution, characteristic length and compressive residual strength is used to verify the correctness of the equivalent model.

Findings

An equivalent relationship between the compressive residual strength of damaged laminates and laminates with edge hole is established. For T300/69 laminates with a thickness of 2.4 mm, the compressive residual strength after damage under an impact energy of 3 J is equivalent to that when the hole aperture R = 2.25 mm and the hole aperture R = 9.18 mm when impact energy is 6 J. Besides, the relationship under the same size and different thickness is obtained.

Originality/value

The value of this study is to provide a reference for the equivalent behavior of damaged laminates. An equivalent model proposed in this paper will contribute to the research of compressive residual strength and provide a theoretical basis for practical engineering application.

Details

International Journal of Structural Integrity, vol. 14 no. 5
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 17 September 2019

Mouna Ben Rejeb Attia

The purpose of this paper is to examine borrowing capacity (BC) of government-owned firms and whether real earnings management (REM) activities moderate the sensitivity of firm BC…

Abstract

Purpose

The purpose of this paper is to examine borrowing capacity (BC) of government-owned firms and whether real earnings management (REM) activities moderate the sensitivity of firm BC to government ownership.

Design/methodology/approach

A simultaneous equation analysis is applied to study 210 Tunisian non-financial firms over the 2001–2014 period.

Findings

The empirical results provide substantial evidence indicating that government-owned firms have higher BC and significant REM than other firms; the relationship between government ownership and firm BC is partially moderated by REM activities.

Practical implications

The findings imply that the implicit credit guarantee of government is not necessarily the unique determinant of firm BC and highlight the role of lenders in monitoring discretionary real transactions in government-owned and protected firms. These implications should be taken in to account by public sector policy makers. In particular, the findings predict that the current government accounting reform in Tunisia on the basis of IPSAS will, probably, improve information quality, but it is still insufficient to control real activities in public institutions.

Originality/value

This study extends a growing research stream on the relationship between BC and government ownership by focusing on the moderating effect of REM on this relationship and by considering the endogeneity issue. The findings provide evidence that government-owned firms use REM practices to improve their BC. Examining these practices in developing countries provides an opportunity to evaluate the efficiency of their public sector reforms and their effect on a firm’s performance and financing decisions.

Details

International Journal of Public Sector Management, vol. 33 no. 2/3
Type: Research Article
ISSN: 0951-3558

Keywords

1 – 4 of 4