Physical Sciences and Engineering

Turbine is an important component of aero-engine. Once a fault occurs, especially when the load exceeds the yield strength, the turbocharger will be damaged in a very short time. Therefore, the structural reliability analysis of turbocharger becomes more and more important. A simplified turbine model is established by Catia. The static strength of the model is analyzed based on ANSYS Workbench finite element analysis software. The distribution of stress and deformation is obtained, and the relationship between rotational speed and maximum stress is studied.

Natural fibers composites are low-cost fibers with high specific properties, low density and eco-friendly. The development of advanced bio composite materials made is increasing in the world. It will be an alternative way to develop the bio-composites which can be particularly used for daily needs of common people whether it is house hold furniture, house and light weight car components and other equipment. This effort to develop bio-composite materials with improved performance for global applications is an ongoing process.

This paper verifies the effectiveness of system engineering by its impacts towards enterprise system generation. An industrial case studies is presented about IBM adopted a model-driven engineering method to determine intentional services that meet business goals. It aims to extend the understanding of a specific method of system engineering- Service Oriented Architecture (SOA), with its flexible integration of business process and effective simplification of generation framework.

XML is everywhere: Data Integration, File configuration and Interface definition are areas where XML is intensively present. We may define rules, constraints and configuration settings, or specify graphical interfaces, export data and define rules. This markup language allows the extensibility of any data specification, graphical interface design, or settings storage in an easy and flexible way, which allowed a wide usage of XML in the industry community. Programmers write programs using a learned syntax that depends of a specific language.

Technological advances have made e-learning an increasingly central delivery system enhancing teaching and learning processes. Unlike face-to-face methods of teaching, which depend on physical structures, e-learning provides a potentially better alternative to face-to-face learning and makes learning easily accessible. With e-learning, education can be facilitated from virtually anywhere and at any time because of the convenience and affordability of the new technology. At the same time, however, new technology has introduced platforms that attract illegal activity.

Aiming at the shortcomings of packaging machine, such as slow packing speed, limited packing precision and low intelligent level, a three-servo intelligent high-speed packaging machine was designed and developed. Three-servo packaging machine is one of the most important equipment in food and material packaging industry. Its control effect and reliability have a key impact on the efficient completion of packaging process.

The rapid advances in technology and the changes these advances have brought to people’s lives have led to increased study of technology acceptance. Studies have shown that a factor such as behavioral intention affects college students’ e-based learning acceptance. Despite the substantial amount of knowledge on the acceptance of technology, there was a gap in knowledge regarding the veracity of TAM undeveloped countries.

Technical development in Industry 4.0 offer the humanity, the assumption for living a simple yet advance life maintains on increasing. "SMART Connected" word is ending up being preferred nowadays by most of us. We live in an interesting time where increasingly more daily items, objects are becoming SMART! All objects have sensing units and can communicate to various other objects and also can supply control to more objects. The Internet of Things (IoT), is upon us in a significant way and also designers are rapidly designing new gadgets that enhance our lives.

Friction characteristics between seal ring and cylinder in pneumatic balancer have great significance to the optimization and upgrading of the working state. The variation law of lubricating grease film thickness and contact stress in space is solved by MATLAB. The results show that the dynamic load of pneumatic balancer has little effect on the friction characteristics of cylinders in the main contact area, and the relative motion speed can be increased. The method of rheological index can increase the thickness of lubricating grease film.

DC-DC converter is used to stabilize or control the DC output voltage. Many optimization techniques have been developed to turn the PID parameters. In this paper, deals with the Modified Bacterial Foraging based Optimization technique for DC–DC Buck converter. MBF algorithm is proposed new method for PID controller optimization to improve the dynamic performance of the voltage regulator. The result of simulation shows MBF- PID controller provide better performance of the Buck converter than the conventional PID controller.