Here, we employ time-resolved magneto-optical Kerr system (MOKE) imaging to ascertain the origin of domain wall motion in microwires. The MOKE visualisations of the domain walls motion on the surface ...of the microwires prove the domain wall pinning and distortions tailored due to the perpendicular magnetic field. It is shown that domain wall pinning in a perpendicular field increases the domain wall tilting angle, which is in turn, related to the apparent domain wall velocity. The obtained result is important for correct interpretation of domain wall velocity measurements in microwires obtained by the Sixtus-Tonks method.
•Possible bio- applications of bistable glass-coated microwires are shown.•Biocompatibility was proven experimentally.•Application on temperature sensing in cranium implants is confirmed.•Application ...for osteomalacy monitoring is shown.
In the given contribution, two examples of applications of glass-coated microwires for biomedical sensing are shown. Firstly, application of microwires for contactless sensing of the intracranial temperature below titanium implants confirms the possibility to sense the temperature with sensitivity down to 0.01 °C. Secondly, application of microwires for monitoring the stress applied on bones after injury or for monitoring the osteomalacy effect is shown. Our measurements confirm that high sensitivity of order of 10−10 s/Pa can be obtained.
Fast domain wall propagation is a typical feature of amorphous glass-coated microwires with positive magnetostriction. The high domain wall velocity can be effectively tailored either by sample ...postprocessing or temperature. In this work, we show that the domain wall dynamics can be engineered by a perpendicular magnetic field. We perform the domain wall mobility measurements in microwires with a varying gradient of the perpendicular magnetic anisotropy. It is shown that domain wall mobility is mainly determined by counterplay between the amplitude of perpendicular anisotropy and externally applied perpendicular field. The presence of perpendicular magnetic anisotropy is observed by Scanning electron microscopy. The relation between the maximum applied perpendicular magnetic field, and the wire dimensions are provided based on the measured data.
The area of computer aided manufacturing in the field of chip machining still provides space for improvements in matters of selection of a suitable manufacturing strategy during creation of NC ...sequences. The paper analyzes current situation in solutions for milling strategies and importance of the selection of a suitable strategy from the viewpoint of several parameters. It also provides information about a newly created software application that presents the tool of computer aid to a milling strategy selection based on the criterion of necessary milling time. It describes functional and programming aspects of the progTam and offers the results obtained from the realized experiments. It also mentions the possibilities for further development of the application.Original Abstract: Podrucje racunalne potpore u proizvodnji u podrucju strojne obrade jos uvijek pruza prostor za poboljsanja u pitanjima odabira odgovarajuce proizvodne strategije tijekom stvaranja NC sekvenci. Rad analizira trenutnu situaciju rjesenja za strategiju glodanja i vaznosti odabira odgovarajuce strategije sa stajalista nekoliko parametara. Takoder donosi podatke o novoj softverskoj aplikaciji koja predstavlja alat za racunalnu pomoc pri odabiru strategije glodanja na temelju kriterija potrebnog vremena za glodanje. Softver se opisuje sa aspekta programiranja i funkcionalnosti, te daje rezultate ostvarenih eksperimenata. Takoder se spominju mogucnosti daljnjeg razvoja aplikacije.
This article deals with basic characteristics and problems in the area of technology of Rapid Prototyping using layered manufacturing technology. It belongs to progressive methods of model creation ...based on geometry obtained from CAD environment with application possibilities in different industrial spheres. Chapters are focused on optimization of Rapid Prototyping preparation process. There is also an algorithm that leads to the selection of suitable settings. Utilization of the algorithm is explained on a case of printing with the use of UPrint device and Catalyst software, a system created for the utilization of Fused Deposition Modelling technology. There are outputs in the form of graphs and tables accumulating information directly affecting economical aspects of printing. Conclusion brings ideas on possible further progress in this area that would include a solution for the generation of database with stored information about previous printing results.Original Abstract: Ovaj clanak se bavi osnovnim karakteristikama i problemima u podrucju tehnologije brze izrade prototipa, koristenjem 3D printanja. Ta tehnologija spada u progresivne metode stvaranja modela na temelju geometrije dobivene u CAD okruzenju, s mogucnosti primjene u razlicitim podrucjima. Poglavlja su usmjerena na optimizaciju procesa 3D printanja. Tu je takoder algoritam koji prikazuje izbor optimalnih postavki. Upotreba algoritma je objasnjena na primjeru printanja s UPrint uredajem i Catalyst softverom, sustavom stvorenim za uprabu tehnologije modeliranja taloznim srascivanjem. Postoje izlazi u obliku grafova i tablica s puno informacija koje izravno prikazuju ekonomsku isplativost printanja. Zakljucak donosi ideje o mogucem daljnjem napretku u ovom podrucju, koje ce ukljucivati bazu podataka s pohranjenim informacijama o prethodnim rezultatima.
In paper are presented main knowledge from the area of logistics, enterprise logistics and production logistics. On the base of theoretical knowledge in second part of the paper are described ...experiences from the application of logistics and simulation in the area of flexible manufacturing system design. The paper also introduces an example application of logistic flow optimization of a real flexible manufacturing system in firm Rostocker Maschinenbau und Technologie GmbH & Co.KG. Project was realized selected workers of the Faculty of Manufacturing Technologies of TU of Košice (Slovakia) in cooperation with workers of University of Applied Sciences in Wildau (Germany).
This article describes possibilities of assembling process realized with using of special virtual elements of the augmented reality (AR) and production processes with integration of parametrical CA ...data in virtual environment by graphical script. These possibilities are implemented in the virtual assembling environment of AR, where the application core allows engineers and constructors not only to see important information about a position and orientation of the single assembly element but also view on next item from assembly list. By means of this the costumer can see the motion process of single assembly item according to its trajectory and necessary information about general characteristic of the assembling processes.
Paper presents project of experimental gearbox design and production with application of Rapid Prototyping technology realized by students and workers of Faculty of Manufacturing Technologies in ...Presov, Slovakia. In frame of gearbox design there was model with four gears realized together with its control mechanism. Production of gearbox was connected with realization of produced parts dimensional issues and final gearbox assembly.
This article provides perspective into creation of virtual 3D models of machine parts for virtual reality application and optimization of existing machine parts by using an alternative scanning ...device and freeware software applications (open source elements). This alternative offers scans of components surfaces that are from the viewpoint of precision and quality comparable with much more expensive devices. Various parts of the paper describe the process of creation of the virtual environment with use of Kinect hardware device and various software tools. At the end an additional options are provided for using with this sensing device.
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