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Hussain, Syed Altaf
- Multiple Performance Characteristic Optimization in Turning of GFRP Composites Using Fuzzy Logic
Authors
1 Department of Mechanical engineering, R.G.M College of Engg. & Technology, Nandyal-518501, IN
2 Department of Mechanical Engineering, JNTUACE, Anantapur-515002, IN
3 Department of Mechanical Engineering, Sri Sai Ram Institute of Technology, Chennai-44, IN
Source
International Journal of Engineering Research, Vol 3, No SP 1 (2014), Pagination: 106-111Abstract
Glass fiber reinforced plastic (GFRP) composite materials are continuously replacing the traditional engineering materials and are finding increased applications in many fields, such as automobile, marine, sport goods etc,. Machining of these materials is needed to achieve near-net shape. In machining of composite materials, optimization of process parameters is an important concern. This paper presents, the use of Fuzzy logic combined with Taguchi method for the optimization of multiple performance characteristics considering surface roughness, cutting force, specific cutting pressure and cutting power. Experiments were planned using Taguchi's L25 orthogonal array with the cutting conditions prefixed. The process parameters considered are workpiece (fiber orientation), cutting speed, feed, and depth of cut. The machining tests were performed on a lathe using carbide (K20) cutting tool. The results indicated that the optimization technique is greatly helpful in optimizing the multiple performance characteristics simultaneously in machining of GFRP composites.Keywords
GFRP Composites, Taguchi, Fuzzy Logic, Optimization, Carbide (K20).- Physiotherapy Following Extensor Tendon Reconstruction in Zone 5-A Case Study
Authors
1 SRIHER, Chennai, IN
2 Department of Plastic Surgery, SRIHER, Chennai, IN
Source
Indian Journal of Public Health Research & Development, Vol 10, No 12 (2019), Pagination: 515-518Abstract
Background: Extensor tendon attrition in Rheumatoid arthritis is very common and if not treated properly, can lead to substantial loss of hand function. Here we present the rehabilitation of a 45 years female patient following extensor tendon reconstruction in zone 5.
Materials and Method: The motor assessment included examination of active range of motion, grip and pinch strength and hand function was done during first visit and at the end of 3rd week, 6th week and 12th week. The patient received physiotherapy (immobilization method) and the program was divided into three phases.
Results: The test results were used to find the efficacy of immobilisation method, author’s modification of the program and home based exercises. There was 60 to 80 percentile of ROM improvement in wrist joint, 50 to 90 percentile of ROM improvement in digits .By comparing 6th week and 12th week DASH there was about 47% improvement in upper limb functional activities The results show that the management combined with a comprehensive rehabilitation programme and commitment on the part of the patient makes it possible to achieve satisfactory treatment out comes enabling a return to normal daily functioning
Conclusion: The functional recovery achieved indicates the advisability of using immobilisation method in post-operative rehabilitation of patients with extensor tendon injury.