Research Publications

Permanent URI for this communityhttps://rda.sliit.lk/handle/123456789/4194

This main community comprises five sub-communities, each representing the academic contribution made by SLIIT-affiliated personnel.

Browse

Filters

2017 - 201912020 - 20251

Advanced Search

Filter by

Settings

Author: search.filters.author.Prasanna, R

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemEmbargo
    Low-Cost, High-Precision Vibration Analysis: Enhancing SHM and Seismic Data Acquisition Systems
    (Institute of Electrical and Electronics Engineers Inc., 2025) Sashik, D; Iddamalgoda, A; Manchanayake, N; Prasanna, R; Abeygunawardhana, P.K.W
    The development of a low-frequency vibration detection device is essential for testing vibrations in crucial applications such as structural integrity, seismic activity detection and industrial machinery maintenance. Current data acquisition systems suffer from lack of sensitivity and high cost. This paper presents the design and development of a low-cost vibration detection device that uses a 3-axis accelerometer and a geophone with a resonant frequency of 4.5 Hz, where the signals are filtered using a second order low-pass filter with a 250 Hz cutoff frequency. The device is integrated with a 24-bit analog to digital (ADC) converter for ensuring a precise data acquisition and the device ensures to monitor real-time vibrations of x, y and z axis using a accelerometer and the z axis with a geophone. The effectiveness of the device was validated via experimental simulations. This developed device is a solid and cost-effective solution for engineers and professionals, where reliable low-frequency vibration monitoring is required in critical applications.
  • Thumbnail Image
    PublicationOpen Access
    Quality management and supply chain management practices towards operational performance: A study of the rubber manufacturing industry of Sri Lanka
    (Faculty of Management & Finance, University of Colombo, 2017-12) Jayalath, U; Samarasinghe, G. D; Kuruppua, G. N; Prasanna, R; Perera, H. S. C
    Rubber industry, one of the growing industries in the world creates a vacuum to exploit foreign markets especially for countries like Sri Lanka. However, lack of strategic relationships and low quality products with higher cost keep Sri Lanka’s rubber industry performance away from the global market. Since supply chain management (SCM) is implicated in the issue of external relationships and quality management (QM) is implicated in low product quality, the key aim of this study was to test the relationships between SCM, QM and organisational performance, in the context of the rubber industry in Sri Lanka. In particular, it empirically tested the mediating role played by SCM in the relationship between QM and operational performance (OP) of rubber manufacturing organisations though this relationship has already been established in theoretical literature. Data was gathered through a questionnaire from managers of 44 firms in the rubber products manufacturing sector in Sri Lanka. Data was analysed with the descriptive and inferential statistical analyses. The results indicated that QM practices and SCM practices improve OP while SCM practices are partially mediating the effect of QM practices on OP. The results of this study help the rubber products manufacturing organisations in Sri Lanka to formulate successful strategies by enhancing the OP via QM and SCM practices.