Browsing by Author "Raji, S. A."

Now showing 1 - 2 of 2
  • Item
    Development of Particleboard from Waste Styrofoam and Sawdust
    (NIGERIAN JOURNAL OF TECHNOLOGICAL DEVELOPMENT, 2017-06-01) Abdulkareem, S. A.; Raji, S. A.; Adeniyi, A. G.
    The use of Plastic Based Resin (PBR) synthesised from waste Styrofoam as binder in the production of particleboard was the focus of this investigation. This study explored the properties of particleboard produced from sawdust wastes and PBR resin synthesized from waste Styrofoam. Three particleboard panels namely C1, C2 and C3 were prepared with 20%, 30%, and 40%, (v/v), respectively. PBR was synthesised via solvolysis of waste Styrofoam in a chosen solvent, and properly mixed with sawdust by simple mechanical stirring, using hand lay-up process in cold pressing to obtain the desired shapes. ASTM D-1037 standard was used to evaluate the physical and mechanical properties of the manufactured particleboards. Density, moisture content (MC), water absorption (WA), thickness swelling (TS), and mechanical properties i.e. modulus of elasticity (MOE) and modulus of rupture (MOR) of C2 and C3 were better than that of C1 particleboard and met the LD-1 requirement of ANSI A208.1. PBR from Styrofoam waste is confirmed as a good substitute for Urea or formaldehyde based resin presently used industrially. The properties of C2 and C3 synthesised are in tandem with the requirements of the ANSI A208.1 standards.
  • Item
    Efficient Health Care Service Delivery using Network Analysis: A Case Study of Kwara State, Nigeria
    (2017) Oyelere, B. A.; Raji, S. A.; Oyeyemi, G. M.; Salami, A. O.; Bello, F. W.
    This paper addresses challenges with prompt health care delivery using Network Analysis of Critical Path Model (CPM) to plan the hospital capacity with a view to achieving prompt health care service delivery. Hospital activities were identified as either critical and noncritical, time or cost consideration was factored in. In all, 16 states health institutions were purposively selected on the basis of most equipped from 55 state health institutions. Data on patients' arrival and depature were observed and recorded for a period of six months. This was subjected to further analysis to identify the most important activities (critical path) and less important together with their time duration. The average total time spent in the hospital was 43 minutes but with effective capacity planning using network analysis the total time was reduced to 18 minutes and the critical path (activities) were identified to be: A-Card section, F-Medical Doctor and H-Medical Team.