AN EVALUATION APPROACH FOR ELIMINATING THE FAILURE EFFECT IN GAS TURBINE USING FUZZY MULTIPLE CRITERIA

This paper demonstrated the fuzzy AHP combined with fuzzy VIKOR technique integrated with essentials of weight in order to overcome the risk evaluation process of the uncertainty in subjective perception and experience of human. Gas turbine has considerably expanded its role in several areas subsequent to the improvement in high efficiency and clean energy such as aviation and marine propulsion systems, electric power stations, and natural gas and petroleum transportation. However, the cost of various industrial plants and their relevant maintenance appear to be extremely expensive to be operated by these gas turbines. This paper aimed to cope with the essential elements of gas turbine including hydraulic-pneumatic equipment, electronic control equipment, and bearing equipment. The results have proved the bearing equipment to have been the most effected alternative, as being ensued by hydraulic-pneumatic equipment and electronic control equipment.

Universal programmable portable measurement device for diagnostics and monitoring of hydraulic and pneumatic equipment

The paper presents a new universal programmable portable measuring device (PMD) intended for the diagnostic and monitoring of hydraulic and pneumatic equipment. PMD offers a simple, complete, and efficient remote monitoring and diagnostic solution for hydraulic and pneumatic equipment. PMD is designed for measurement, recording, and processing of data as well as graphical visualization of registered results on a test stand or in the operating site of hydraulic and pneumatic equipment. PMD is designed to measure parameters used in servicing, repairing, monitoring, and diagnosing hydraulic and pneumatic equipment. Usually, fluidic characteristic quantities (pressure, flow rate, temperature), mechanical quantities (position, linear speed, rotational speed, force, torque, shaft power), and electrical quantities (voltage, current, power) is measured. PMD with WiFi communication is adopted to transfer measurement data via the Industry Internet of Things (IIoT) technology to remote online monitoring and diagnostic hydraulic and pneumatic equipment. Sensors, controllers, and other devices are connected to the computing gateway via their respective protocols.

Effectiveness of a power-training block with two cluster set configurations in recreationally trained young adults on sprint performance

Objective: The purpose of the present study was to evaluate the effectiveness of a three-week power-training block with two different cluster set configurations using pneumatic equipment on sprint performance. Method: Thirty recreationally active subjects participated in this study (18 female and 12 male). The subjects were distributed randomly into Control (CG), Cluster 1 (CL1) and Cluster 2 (CL2) groups. The experimental procedure involved a three-week training period; at the pre- and post-training time points, a 20-meter sprint tests were applied. Results: There was an intergroup significant difference for the CL2 versus the CG for time, acceleration and velocity in the first 10-meter sprint test. The alpha value used was p < 0.05. For total time, total velocity, time and velocity in the first 10-meter sprint test: significant differences were observed for both CL1 and CL2 at the post-test. The total acceleration and acceleration in the first 10-meter sprint test was significantly different for the CL2 at the post-training. There were no significant differences in time, velocity and acceleration in the final 10-meter sprint test between groups. Conclusion: These results suggest that interventions with intra-set intervals (specifically CL2) using pneumatic equipment allow for positive adaptations in velocity and acceleration after three-week training.

Study on a Pneumatic Automatic-Extendable Crash Energy Absorption System

This paper presents a pneumatic energy absorption system which can extend the energy-absorption beam automatically just before crash. The system consists of thin-shell energy absorption structure, pneumatic equipment and control system. When the control system detectives a crash accident is unavoidable, the pneumatic equipment will extend the energy absorption beam which is fixed in thin-shell energy absorption structure immediately to increase energy absorption space. This system has been equipped on a mass produced bus, and it indicates that the length of energy absorption space can be increased more than 230 mm instantaneously before a crash accident occurs. The time used to extend the energy absorption beam is less than 100ms.

Medical gases

Clinical uses 162Cylinder identification coding 168Guideline for oxygen use in adult patients 170Domiciliary oxygen therapy 172• In ventilators and incubators—to provide uncontaminated and controlled airflows.• Replacement for contaminated atmospheric air.• Carrier for volatile anaesthetic agents.• Power source for pneumatic equipment....