Mihai Dragomir

Integrating the concept of reverse engineering in medical applications

Reverse engineering is a widespread concept used in industrial applications worldwide. It involves obtaining the geometric CAD model from 3D point clouds acquired by scanning existing parts or products. Applying the concept in medical applications requires specialized competences both in the field of health and medicine as well as in CAE (Computer Aided Engineering). Most uses of reverse engineering in medicine have been focused on developing applications around in vitro and in vivo case studies. This paper presents an algorithm for implementing the reverse engineering concept for applications in the medical field. The steps required for developing reverse engineering applications in the medical field are presented alongside case studies conducted by the authors. The studies are focused on showcasing various applications as well as other possible developments in the field of health and medicine regarding in vitro applications.

With the Trio of Standards Now Complete, What Does the Future Hold for Integrated Management Systems?

The world of standardized management systems is traversing exciting changes with the publishing of the long-awaited ISO standard for occupational health and safety, ISO 45001. It comes to join ISO 9001 and ISO 14001 to form a trio of highly compatible best practice references of interest for many companies that want to become more competitive, especially from the manufacturing sector. For the past at least 20 years there have been many debates and studies on how to best go about using these standards together to set up an integrated management system. Of course, things seem easier now, but together with the benefits, there are also challenges to manage and some are quite significant. This paper discusses the implications of reaching this milestone and presents the results of a focus-group made among production oriented companies, that was aimed at probing the stakeholder community regarding its positioning in the new context. The focus is on the impact of the new regulations upon creating or upgrading an integrated management system, where relationships among components are the key to a successful implementation and to obtaining results.

Using the Waste of Polyester and Glass Fiber in Cold Recycling Highways Superstructure

This paper wish to make a presentation of the possibility to use glass and polyester fiber waste in making highway cold recycling better, easier and cheaper. For this purpose we have studied the influence of the fibers (glass and polyester) on some experimental sectors, from our country, Sălaj district, Transylvania. Glass and polyester fiber waste can be used like disperse reinforcing materials in highway superstructures in so called cold recycling technology. The fibers are throughput in the matrix for better physical and mechanical properties of the final product. This technique will give better highway surface, cheaper costs per rehabilitated kilometer and diminution of the waste that some industries are making.Most studies from this scientific sector are gravening above the realization of brand new superstructures ignoring the possibility to recycling the existing layers with or without other materials in addition. The period that we are passing is one characterized by intense preoccupations oriented on the economically aspect, much more over the big investments like are highways and bridges - were the cheaper solution is the winner.There are some problems in spreading and dosage of the fibers in the system to ensure the reinforcing function. For the recycled complex (aggregates, bitumen, cement, water and fibers) we will use the generically denomination of matrix. The improvement of physical, mechanical and chemical properties of the matrix constitutes problems that are hard to solve in a very short time. Regarding the fibers the biggest problem is the dosage and homogenization in the structure. To attend this purpose fiber need to have the correct length ant the correct spread in the matrix.We had make a bibliography documentation, that encourage us to believe that using some alternative solutions will obtain very good results also in our country, that have the well-known problems regarding its highway infrastructure.

Process Improvements Using Simulation Software and Quality Tools

This paper presents a case study both for individual process improvements and also for the improvement of the overall manufacturing flow, within an SME, using specialized simulation software called SigmaFlow Modeler. The improvements are done based on simulation results (accurate knowledge), meaning that by analyzing the process distribution charts, one can dispose measures for solving problems or even preventing potential failures. It has to be noted that by eliminating those bottlenecks the overall performance of the process will increase and the manufacturing flow will also be enhanced. The paper will also present an actual process simulation for the most complex process from the manufacturing cycle, i.e. the milling process, and a short analysis, focusing on possible improvements, will be performed on it. Moreover, further improvements will be done by closely reviewing and identifying every input and output and by introducing them into a cause-and-effect matrix, the importance of each input can be mathematically calculated and action can be taken for the critical ones in order to improve the process.

Daylight for Spaces Defined by Movable Walls

The present article deals with the designing proper interior spaces in a reconfigurable manner while at the same time ensuring the much needed daylight for people spending a considerable amount of times indoors. The necessity for this study has appeared as part of a design effort of a furniture start-up company interested in producing movable walls for office and conference spaces, when it became apparent that many times the spaces obtained in this way are devoid of natural sunlight. 3D modeling software was used for creating the desired configuration and a specialized lighting simulation software, DIALux, was employed to study the possibilities of improving lighting conditions. The paper presents an approach that can be used to design and configure hybrid lighting systems, obtaining improvements in lighting costs of up to 30% for interior spaces defined by movable walls.

Success Elements Analysis of International Engineering and Educational Projects

The objective of the paper is to present and compare the results of several international projects and to identify pedagogical and project success elements. The generic projects are few examples that had in common the several objectives: to identify the training needs; to develop an evaluation tool to transform actual and current training offered by corporate /occupational further training institutes ; to improve quality of education to meet the needs of working life. In projects, the training needs were identified involving universities, educational institutions, training and consulting companies from countries across Europe.The selection of the study cases is not random. The intent is to emphasis the consequences-by using similar approach-into distinct project methodologies: one is promoted largely by sponsors from US; the other three are according to the EU rules, regulations, and procedures.

Model for developing design of the electronic courses

This paper is proposing an original model for developing design of the electronic courses, which includes all cyclepsilas phases of the course: designing, accomplishing, delivering and evaluating.