Now showing 1 - 2 of 2
  • Publication
    Disposable E-Tongue for the assessment of water quality in fish tanks
    ( 2008)
    Chew-Cheen Chang
    ;
    Bahruddin Saad
    ;
    Misni Surif
    ;
    ;
    A disposable screen-printed e-tongue based on sensor array and pattern recognition that is suitable for the assessment of water quality in fish tanks is described. The characteristics of sensors fabricated using two kinds of sensing materials, namely (i) lipids (referred to as Type 1), and (ii) alternative electroactive materials comprising liquid ion-exchangers and macrocyclic compounds (Type 2) were evaluated for their performance stability, sensitivity and reproducibility. The Type 2 e-tongue was found to have better sensing performance in terms of sensitivity and reproducibility and was thus used for application studies. By using a pattern recognition tool i.e. principal component analysis (PCA), the e-tongue was able to discriminate the changes in the water quality in tilapia and catfish tanks monitored over eight days. E-tongues coupled with partial least squares (PLS) was used for the quantitative analysis of nitrate and ammonium ions in catfish tank water and good agreement were found with the ion-chromatography method (relative error, ±1.04- 4.10 %).
  • Publication
    The impact of viable supply chain management on sustainability in Malaysian manufacturing companies during the COVID-19 pandemic: the moderating role of government support
    This study examines the impact of viable Supply Chain Management (SCM) on the long-term viability of Malaysian manufacturing enterprises during the COVID-19 epidemic. It specifically studies how government support can moderate this relationship. The pandemic's unprecedented disruptions have emphasised the vital need for resilient supply chains to guarantee ongoing operations and achieve sustainability goals. This study employs a quantitative approach to investigate the influence of effective SCM on the long-term viability of companies. Survey questions were distributed to a total of 488 respondents, consisting of upper-level employees of manufacturing companies in Malaysia. The study has employed a stratified random sampling process. The study utilise data from 197 manufacturing enterprises in Malaysia, which is examined using Partial Least Squares Structural Equation Modelling (PLS-SEM). The findings suggest that organisations with robust and flexible supply networks were more capable of sustaining their operations and attaining their sustainability objectives. Contrary to expectations, the data indicate that government support did not have a moderating effect on the connection between VSCM practices and corporate sustainability. To improve sustainability and ensure operational continuity during times of crisis, the report emphasises the importance of investing in and cultivating resilient supply chain procedures for industry professionals. The findings indicate that governments should reevaluate the processes and effectiveness of government support given to companies during disruptive events. This calls for a more nuanced approach to the development and execution of policies.