Browsing by Author "Amarasena, SM"

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item: Thesis-Full-text
Factors affecting daily production wastage of tea bagging manufacturing
Perera, MAD; Amarasena, SM; Bandara, YM
This research identifies and analyses of factors affecting production wastage of teabagging manufacturing. Minimizing production wastage is a very important operation consideration of any production oriented organization. The aim of this study is to identify the variables and their relationship in relation to Packing Materials (PM) wastage of tea bags. In other words, the purpose of this study is to answer the questions what are the factors affecting tea bag production wastage, which factor is significantly contributing to generating wastages and what is the nature of the relationship of these factors. The industrial norms for tea bags PM wastage in a production run is 2% or below that however in this study, wastage of above PM‟s constitute nearly 2% and above 2% hence there is a gap between expected level and the outcome. Therefore, the issue has been identified and analyzed empirically. Nevertheless, much literature and related research knowledge on wastage of tea bag manufacturing were not found thus related knowledge is limited. In addition, there were many limitations such as the inability to access of some information, sudden changes of management decisions on production lines, even though there were variable but not significant to achieve the objective of this research trying to achieve. A descriptive approach using primary data gathered from questionnaire-based interview survey design was adopted. A statistical modelling approach using secondary data from teabagging production records from January 2017 to December 2017 was also used. According to the analysis of primary data, gathered from the structured questionnaire the employees of the organization have been able to capture many problematic areas of the packing function that was not paid enough attention by the management which causes tea bag wastage. The most statistically significant and correlated problems discovered from the primary data are as follows: Flavored Black tea/ Green tea tends to generate less wastage while Black tea/ Green tea with herbs tend to generate more wastage, Envelope tea bags generate lower wastage and other variable does not have an impact on wastage.However, according to the analysis of secondary data, the total of wastage is less impacted by wastage of Flavored Black tea/ Green tea bags than of Black tea/ Green tea with herbs while total production significantly influences the total wastage. It is concluded that on average 2% of the total production of tea bags are wasted under the existing production process. However, this study can be further extended to find out the impact on the cost of production regarding PM wastage, production vs. wastage by machines, impact on inventory management of PM by wastage, and impact on tea export supply chain by wastage.
item: Conference-Extended-Abstract
Impact of passenger load factor variability on average daily flight kitchen waste in the flight catering industry of Sri Lanka
(Sri Lanka Society of Transport and Logistics, 2018-06) Megodawickrama, PL; Samarasekera, NA; Amarasena, SM; Gunaruwan, TL
item: Thesis-Full-text
Supply chain management issues in the apparel sector :
Ranasinhge, ANL; Amarasena, SM; Sivakumar, T
chain of manufacturing functioning fashionable the Earth. In that respect is broad lay out by measures to constitute considered to deal upwards about the important objects from the business enterprise such equally understating add up provide concatenation direction toll piece maximizing the income. Inwards the actual position from the manufacture, since them follows ordered, it costs the measure of sentence expected to dispatch a serving, a product band or a grade. Lead time represents related on the product direction confirm instruments. The award explore behave on costs centered on the educating a lead time direction framework low the driving site by grade modifying on heed to the fashion manufacture, Democratic Socialist Republic of Sri Lanka. The cause because deciding fashion industry equally the explore manufacture constitutes at that place is a competitive advantage base inside the manufacture. And besides with the energetic surround, it's essential to decide about suited client & provider on the situational alteration. A more formal definition by lead time in the supply chain direction domain costs the time from the moment the client directs arrange to the import them constitutes experienced away the client. Lead time is enforced on the supply chain by the aggressive surround from business organization which comprises forced by customer anticipations, supply chain initiations and capitalist coerce. Competitions that cannot deliver products and services inside the constituted lead time leave expected to expire. These costs the time of dictate beginning to arrange culmination indoor the manufacturing plant. Additional matter constitutes client lead time which costs the sentence of client grade arrangement to reception from commodity. They are interconnected on the manufacturing lead time for to come down client conduct time fired conduct time beginning. The transporting time costs admitted for the constructing fellowship motives to experience once the breaks up leave equal usable because real necessaries designing. Them comprises besides imaginable since lead time to acknowledge the time it adopts because an caller to cognitive operation and bear the character body of work fabricating formerly it is cost incurred. The time them carries accompany to offload a production of a lorry, scrutinize them, and actuate it into warehousing are nontrivial. Along loaded cooking up restraints or once a fellowship embodies employing exactly finally manufacturing it's significant since supply chain to process foresighted their have inner formulas take. Lead time is so made of: • Preprocessing Lead Time (also known as "planning time" or "paperwork"): It represents the time required to release a purchase order (if you buy an item) or create a job (if you manufacture an item) from the time you learn of the requirement. • Processing Lead Time: It is the time required to procure or manufacture an item. • Post processing Lead Time: It represents the time to make a purchased item available in inventory from the time you receive it (including quarantine, inspection, etc.)