Off road ground vehicles have many potential applications, including space, defence, agriculture, mining and construction. Increased autonomy of ground vehicles will not only improve the safety of the operators but also assist in trajectory tracking. Accurate estimation of slip is essential in developing autonomous navigation strategies for mobile off road vehicles operating in unstructured ter...

The connection of the tractor to the inactive trailer or motor vehicle causes a motion control problem when turning in the screw, forward or backward movements and high speeds. This is due to the inactive trailer being controlled by the tracking using a physical link that is not affected by the movement. Trailers usually take tracks under these conditions. This phenomenon is called Jack Knife. ...

This paper presents the modeling and simulation of a proton exchange membrane fuel cell (PEMFC) generation system for off-grid and on-grid operation and configuration. A fuel cell DG system consists of a fuel cell power plant, a DC/DC converter and a DC/AC inverter. The dynamic model for fuel cell array and its power electronic interfacing are presented also a multi-input single output (MISO) D...

the issue of unit commitment is one of the most important economic plans in power system. in modern and traditional power systems, in addition to being economical of the planning, the issue of security in unit operation is also of great importance. hence power system operation confronts units’ participation and input considering network security constrains. the issue of units’ participation is ...

In this paper, a new guidance method for surface to surface ballistic missiles without mandatory engine cut-off will be presented. The complexity of solid fuel engine cut-off demands a comprehensive method for guiding these missiles. In the method presented in this paper, a certain guidance law is applied such that by transmitting appropriate commands to the control system, by changing the miss...

NLM previously utilized two separate systems, the PubMed system and the Data Creation and Maintenance System (DCMS), for data management of PubMed citations. The PubMed system was managed by the National Center for Biotechnology Information (NCBI) with the purpose of storage and indexing of citation data for PubMed search. The role of the DCMS was then to facilitate data reviews and indexing of...

In this paper; we describe a core system for autonomous navigation in outdoor natural terrain. The system consists of three parts: a perception module which processes range images to identify untraversable regions of the terrain, a local map management module which maintains a representation of the environment in the vicinity of the vehicle, and a planning module which issues commands to the ve...

This work deals with the design and in-house operational results of a novel Automated Ultrasonic Inspection System (ASCIS) for studless chain links with diameter ranging from 111 to 185 mm, conceived and developed by INTERLAB Ingeniería Electrónica (IIE) for VICINAY Cadenas, a major industry devoted to manufacture of chains for both the shipbuilding industry and offshore exploration. The system...

Electronic cash; Payment systems; Untraceable; Date attachable. Abstract Eslami and Talebi (2011) [25] proposed an untraceable electronic cash scheme and claimed that their scheme protects the anonymity of customers, detects the identity of double spenders and provides the date attachability of coins to manage the bank database. In this paper, illustrating Eslami and Talebi’s scheme, as one of ...