We have fabricated fully released nano-electro-mechanical system (NEMS) cantilevers of various geometries from metallic alloy nanocomposite films. At thicknesses 4.3 and 20.0 nm, these are the thinnest metal reported in literature to date. Such device dimensions very difficult achieve using conventional were able overcome this limitation by room-temperature co-sputtering synthesize films Al–Mo. A systematic investigation microstructure properties as a function Mo content resulted an optimum...

Experimentable Digital Twins are capable of combining different simulation domains on a system level. This has been shown for multitude domains, e.g., rigid body dynamics, control, sensors, kinematics, etc., and application scenarios, automotive, space, industrial engineering. In our work, we investigate how to include structural loads into an Twin while maintaining computational efficiency interoperability We combine dynamics with the transfer matrix method simulate forces stresses. show...

Technical systems become more and complex, causing system design realization, as well the effective management of engineering processes from different domains to increasingly challenging tasks. For this reason a continuous need for sophisticated cross-domain methodologies in order handle complexity create reliable persists. This paper introduces systematic approach methodology that connects worlds leading modeling simulation-based concept. Central aspect concept is consequent application...

Aluminum films with unusual properties have been deposited on silicon substrates at room temperature by ionized cluster beam (ICB). As demonstrated in previous studies, these high thermal stability, are resistant to electromigration and provide good step coverage. The structure of the interface were investigated atomic resolution electron microscopy. In Al(111)/Si(111) case, is flat no transition layer was observed. No damage due energetic ion bombardment could be seen. By annealing 400 °C,...

In the context of digitalization, which has been developing rapidly since early 2010s, and related development Internet Things, enables production virtually controlled networked products all kinds with integrated services, one term is gaining strongly in importance - digital twin. It increasingly becoming an integral part operation technical systems. The principle vividness "twin" essential its success, but at same time it also core a problem that cannot be ignored. Since no special prior...

A particular problem in the practical application of Model-Based Systems Engineering (MBSE) for development complex products is effective integration other engineering models. The Model-Driven Process (MDEP) addresses this by providing clearly defined insert points domain models and simulation engines. In Closed-Loop (CLOSE) Experimentable Digital Twins (EDTs) are integrated MDEP to realistically simulate how system functions would be executed physical parts developed product. CLOSE thus can...

Technologies in the field of artificial intelligence (AI) are increasingly used a wide variety industries. However, addition to their considerable potential, it is important note that behavior an AI-based system cannot be predicted based on its internal architecture, and thus correct guaranteed. Instead, both performance reliability depend amount quality training data. The greater complexity task required from AI, less likely necessary validation data can collected through real measurement...

Abstract The growing relevance of artificial intelligence (AI) for technical systems offers significant potential the realization and operation autonomous in complex potentially unknown environments. However, unlike classical solution approaches, functionality an AI system cannot be verified analytically, which is why data-driven approaches such as scenario-based testing are used. With increasing complexity required AI-based system, quantity, quality data needed development validation also...

Cyber-Physical Systems (CPS) are becoming indispensable in numerous industries. By combining computational intelligence with physical capabilities, they enable new functionalities and applications. Engineering (SE) simulations commonly used processes to manage the resulting ever increasing system complexity. While simulation engineers focus on virtually replicating behavior of individual components, systems aim for formal architectures describe structure entire system. Despite their...

Visual servoing for online facilities aims at automated manipulation of instrument control parameters based on visual-scene interpretation. It provides a layer computing that hides the latency in Internet environment and simplifies use scientific imaging instruments. This approach makes remote real-time experiments feasible over unpredictable wide area networks. The authors' efforts focus developing framework remotely manipulating microscopic objects. Two diverse applications demonstrate...

<p>Our society is surrounded by technical systems that increasingly influence and<br />take over aspects of everyone’s everyday life. As we build on the correct functioning, need for appropriate methodologies support development reliable products persists. However, and in particular qualification become challenging due to their increasing inherent complexity. Virtual testbeds digital twins are modern key concepts this context offer a wide range opportunities simulation-based...

We present an approach for remote operation of instruments in the Internet environment. have applied this to in-situ electron microscopy experiments that require dynamic interaction with specimen under observation, as it is excited external stimuli, i.e., temperature variation, EM field variation etc. The operations include control sample's position and orientation beam, illumination conditions focus, Remote via wide area networks like do not offer real time data command delivery guarantees...

Interfaces (IF) and their Management (IFM) are a particular challenge in the successful development of complex products operating environment. In Closed-Loop Systems Engineering (CLOSE) IFM is fully integrated into its Model-Driven Process (MDEP). CLOSE provides automated IF modelling, traceable history, an efficient handling negotiations effective de-coupling interfacing systems. Especially combination with CLOSE's Experimentable Digital Twins (EDTs), becomes vital resource for process,...

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not.The documents may come from teaching institutions in France abroad, public private centers.L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de scientifiques niveau recherche, publiés ou non, émanant des établissements d'enseignement recherche français étrangers, laboratoires publics privés. Recent TEM studies...

The forestry sector in central Europe aims for a fully mechanized wood harvest. This goal is currently restricted by the limited reach of forest harvesters on market and legislative specifications distance between skid trails. As consortium industry academia, we are developing novel machine that designed to fell trees inter-field trails which equipped with lightweight boom an extended reach; date, felling not reachable done manual labor. key risk, overturning whole vehicle prevents transfer...

Digital twins serve as comprehensive virtual replicas of real world objects and flourish in combination with modern simulation technology, resulting a broad variety simulation-based methods. A key aspect the realization digital is an object-oriented modeling approach, which based upon distinct differentiation between model structures functions, allowing both to be developed independently. Real are encapsulated structurally equivalent twins, enabling complex system-of-systems same semantic...

Virtual tests are playing an increasingly important role in the development and functional verification of technical systems, as they safe, reproducible, applicable throughout entire product life cycle. The use virtual environments is particularly helpful cases where operational environment system under test has a high variability with many influencing parameters. Complex usually require large numbers experiments order to achieve sufficient coverage space. Consequently, modeling this...

It is shown that the shape of Ge precipitates in quenched and aged Al-Ge alloys can be refined by a thermal cycling heat treatment which causes partial dissolution regrowth leads to shift distribution precipitate morphologies. Using material contain cube-cube orientation relationship, it after several cycles shrinkage regrowth, predominant an octahedron. From direct in-situ observation electron microscope, mechanism refinement found elimination internal twins. This conclusion agreement with...

On-line microscopy commenced with demonstrations for biological and SEM applications. For materials science, a project has recently been established to provide users of the NCEM remote online access 1.5MeV Kratos EM-1500 high-voltage transmission electron microscope via existing wide area networks. Within this we are developing implementing set tools, protocols, interfaces bring on-line collaborative research. Initially applied Kratos, will increased utilization unique instrument its...