No abstract

No abstract

No abstract

The effect of flux-cored arc welding (FCAW) process parameters on the quality of the super duplex stainless steel (SDSS) claddings can be studied using Taguchi L9 design of experiments. In this experimental investigation, deposits were made with 30 % bead overlap. Establishing the optimum combination of process parameters is required to ensure better bead geometry and desired properties. The above objectives can be achieved by identifying the significant input process parameters as input to the mathematical models like welding voltage (X 1 ), wire feed rate (X 2 ), welding speed (X 3 ), and nozzle-to-plate distance (X 4 ). The identified responses governing the bead geometry are bead width (W) and height of the reinforcement (H). The mathematical models were constructed using the data collected from the experiments based on Taguchi L9 orthogonal array. Then, the responses were optimized using non-traditional nature-inspired technique like genetic algorithm (GA).

No abstract

The tribological properties are one of the most significant properties in many automobile components such as clutch plate, break shoe, engine liner, piston pin, etc. At present work, attempt on nano clay is loaded with natural fibers (sisal and jute), artificial fiber (E‐glass), and epoxy resin. In this investigation, the specific wear rate and coefficient of friction are analyzed by pin on disc apparatus under dry sliding conditions. The experiment design carried by Box–Behnken design on design of experiment techniques with influence wear parameters, namely, filler content, applied load, sliding distance, and sliding velocity; its responses are analyzed by response surface methodology. The regression mathematical models performed for all the responses, and the most influential factors determined by analysis of variance technique, S/N ratio. The results indicate that the coefficient of friction and specific wear rates are minimized with the addition of filler content to the developed composites and further increasing, the response of composites may be varied. Copyright © 2017 John Wiley & Sons, Ltd.

No abstract

The study was conducted in eighteen clinical cases of horses for diagnostic and surgical procedures requiring general anaesthesia were randomly divided into three groups, group I, group II and group III, each consisting of six cases. All the horses were premedicated with glycopyrrolate at the dose rate of 0.02 mg/kg body weight, intravenously. Horses in Group I and Group II were administered xylazine hydrochloride at the dose rate of 1.10 mg/kg body weight intravenously, whereas in Group III at the dose rate of 0.50 mg/kg body weight intravenously. In Group III, acepromazine was injected after xylazine administration, at the dose rate of 0.02mg/kg body weight, intravenously. Before induction of anaesthesia, nalbuphine hydrochloride was administered for Group II and Group III at the dose rate of 0.75 mg/kg body weight intravenously. Ketamine hydrochloride was administered intravenously to induce anaesthesia at the dose rate of 2.20 mg/kg body weight and maintained with 0.50 mg/kg body weight in required cases to maintain for duration of 15 ± 1.04 minutes. The mean time for induction in group I, group II and group III were 1.78 ± 0.27, 1.73 ± 0.10 and 1.85 ± 0.28 minutes respectively. The mean total number of additional doses of ketamine for standard duration of 15 ± 1.04 minutes surgery required in group I, group II and group III were 5.00 ± 0.36, 1.66 ± 0.33 and 2.00 ± 0.36 respectively. The quality of induction was 100 per cent smooth in group III, 83.33 per cent smooth and 16.67 per cent rough in group II and 66.66 per cent smooth and 33.34 per cent rough in group I. The quality of analgesia in group I, group II and group III were 2.83 ± 0.47, 1.83 ± 0.30 and 1.33 ± 0.21 respectively. The quality of muscle relaxation in group I, group II and group III were 3.16 ± 0.30, 1.50 ± 0.22 and 1.33 ± 0.21 respectively. The mean time for recovery in group I, group II and group III were 23.00 ± 1.52, 33.00 ± 0.93 and 41.98 ± 1.32 minutes respectively. The mean number of attempts for unassisted standing in group I, group II and group III were 6.66 ± 0.71, 5.00 ± 0.57 and 5.00 ± 0.36 respectively. The quality of recovery was 83.33 per cent smooth and 16.67 per cent rough in group III, 66.66 per cent smooth and 33.34 per cent rough in group II and 50.00 per cent smooth and 50.00 per cent rough in group I. None of the animals in any groups showed any intra and post operative complication.