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The ongoing development in factory automation considers agent-controlled production systems as future alternatives to today's most widely-spread centralized approaches. By distributing computational power and hardware controls over independent workplaces, new ways for order scheduling with all their subprocesses and interconnections must be introduced as there is no control center which knows the...
The keywords Green IT and Green Computing indicate a paradigm shift of computing. Development of existing and new technology should no longer proceed at the expense of environment. This is also true for automation. Nowadays, one important goal of automation is to optimize the complete work and material flow under the essential constraints of energy consumption, quality and throughput. As a matter...
Nowadays, one important goal of automation is to optimize the complete work and material flow under the constraints of energy consumption, quality and throughput. As a matter of fact, the whole control process should be flexible and reconfigurable which targets the three levels of the control pyramid (ERP, MES, Field). In the context of our ongoing research project LK3S an agent platform is under...
Continuous technical innovations result in decreasing product life cycles. This in turn requires a flexible production which is able to adapt to the constantly changing demands. Simulation techniques provide a promising approach for faster, less error-prone development. Furthermore it offers the opportunity to evaluate alternative production scenarios which helps to save time and to find optimized...
In general, mechanic, electronic and software are developed independently by different design tools for the same mechatronic object (MO). As a consequence, it's difficult to find links between interrelated data which are needed by back-end tools like simulators. Even new concepts based on the idea of mechatronic objects are restricted to particular views of fabrication. Different views generate different...
Manufacturing systems are developed and configured using different design tools, e.g. CAD for mechanical construction, CAE for electronic engineering and IDE for software development. These tools work on different views of automation units, which are the basic blocks of manufacturing systems. With this, tool dependent data is generated that relates to automation units involved in the manufacturing...
A collaboration project with SENGATEC has resulted in a platform for distributed real-time programming which consists of an open source virtual machine for distributed real-time control, named rt-dvml and a toolset ems-drd, intended to help application engineers to configure and to develop distributed control applications. Driven by Internet technologies, new commercial requirements like concurrent...
35 Patienten nach vorderer Kreuzbandersatzplastik wurden prospektiv 2-mal, im Mittel nach 5,9 und nach 11,1 Monaten untersucht. 18 Patienten erhielten postoperativ krankengymnastische bungsbehandlung, 17 Patienten erweiterte ambulante Physiotherapie. Voroperationen am betroffenen Kniegelenk oder Frakturen waren Ausschlusskriterien. Grundlage fr die Beurteilung des klinischen Ergebnisses waren die...
Primary medullary nailing of femoral fractures is burdened by the risk of central and pulmonary complications in patients with polytrauma, especially in conjunction with craniocerebral or thoracic trauma. This also applies to unreamed medullary nailing. Primary treatment with external fixation necessitates secondary surgery with an altered procedure, the timing of which is not predictable. Plate osteosynthesis...
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