Temat: laser development - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Development of Free Electron Lasers in Europe Local and Global Implications : 2016
Autorzy:: Romaniuk, R. S.
Tematy:: laser technology
laser development
lasers
free electron lasers
photonics
EUV radiation
RTG radiation
research infrastructures; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/227040.pdf Link otwiera się w nowym oknie
Opis:: Free electron laser FELs are built in Europe mainly as nondependent infrastructures, or as a development of synchrotron ones. They are constructed mainly in centres which have considerable experience with synchrotron light sources of the third generation like DESY, Trieste, INFN, etc. Advances in very energetically efficient superconducting linear accelerators for electron beams, like TESLA type, caused an abrupt development of FEL machines all over Europe. New generation of FELs emits light beam of extreme intensity, good parameters, in IR, VIS, UV, EUV and X-ray spectral regions. The machine construction teams comprise also of young active researchers from Poland. In particular, these is a considerable participation of M.Sc. and Ph.D. students from Warsaw University of Technology at building of FLASH I, FLASH II, and EXFEL machines. Unique experiences gathered at work with these large experiments result in development of these young teams, and their further engagement in new initiatives: laser, laser - accelerator, inertial, plasma, plasma - energy, etc. This is what we observe with satisfaction. However, due to the lack of large research infrastructures in Poland, we are not members of the infrastructure owner clubs. Our young researchers may take part in the initiatives only indirectly as members of cooperative teams from the leading countries. As a further consequence, there is also a confined access of Polish laser and accelerator researchers to some kinds of European infrastructure development projects now under realization within the H2020.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Opracowanie układu eksperymentalnego służącego do spektroskopii molekuł van der Waalsa - od kontrolowanego wzbudzenia do efektywnej detekcji fluorescencji
Development of experimental set-up for spectroscopy of van der Waals molecules - from controlled excitation to efficient detection of fluorescence
Autorzy:: Puczka, Krystian
Opis:: Opracowano oprogramowanie i scharakteryzowano urządzenia pomiarowe, które w przyszłości posłużą w eksperymentach spektroskopii molekuł van der Waalsa produkowanych w wiązce naddźwiękowej. Oprogramowanie dla lasera diodowego DL 100 (Toptica) zostało napisane w języku C#, z pełnym graficznym interfejsem. Głównym zadaniem owego oprogramowania jest kontrola procesu posiewu lasera aleksandrytowego PAL 101-PRO (Light Age), jednakże jest ono również przygotowane do pracy w niezależnych układach eksperymentalnych zawierając funkcjonalności takie jak: zapisywanie danych pomiarowych, prosta analiza danych pomiarowych, czy kontrola wiązki przy użyciu wykresów rysowanych w czasie rzeczywistym. Została przygotowana zaawansowana pętla odpowiedzialna za bezpośrednie strojenie długości fali. Przeanalizowano generowaną długość fali dla różnych temperatur i prądów nadawanych na diodę. Został wyznaczony optymalny krok czasowy dla procesu strojenia prądowego równy 50 µs oraz dla strojenia temperaturowego równy 10 s. Laser diodowy generuje jednomodową wiązkę w szerokim zakresie temperatur i prądów diody co zostało udowodnione poprzez pomiary przekroju wiązki. Został zbadany wpływ procesu strojenia na generowaną długość fali i stabilność wiązki. By potwierdzić efektywność stworzonego oprogramowania, wykonano eksperyment spektroskopii absorpcyjnej rubidu.Oprogramowanie pomiarowe dla oscyloskopu PicoScope (Pico Technology) zostało również napisane w języku C#. Oprogramowanie zostało stworzone nie tylko w celu pomiarów, ale również analizy zmierzonych danych pomiarowych. Porównano pracę dwóch oscyloskopów: PicoScope oraz powszechnie używanego TDS 2024B (Teletronix). Zmierzono symulowaną fluorescencję z rozdzielczością 50 000 punktów na każdy z sygnałów z interwałem czasowym równym 3 ns.W celu przygotowania spektrometru Mechelle 5000 z kamerą ICCD iStar 334T (Andor Technology) przeprowadzono pomiary fluorescencji molekularnego jodu wzbudzanego wiązką lasera.Scharakteryzowano przejście B3Π+ 0u, υ΄ = 28 −→ X1Σ+ g , υ΄΄.
Software was developed and diagnostics of measurement devices that in long term will be implemented in spectroscopy experiments of van der Waals (vdW) molecules produced in supersonic beam was made. Software for DL 100 (Toptica) diode laser was developed in C# programming language with a full graphical user interface. The software is devoted to an alexandrite ring laser PAL 101-PRO (Light Age) seeding system but can also work in independent experimental setups with functionalities such as data saving, simple data analysis and beam control with real-time graphs drawing. Advanced loop responsible for a direct wavelengths tuning was invented. The generated wavelengths in different temperatures and electric currents were analysed. An optimal time step of the tuning process was found to be equal to 50 µs for the electric current tuning and 10 s for the temperature tuning. The diode laser generates a single-mode beam in a wide range of temperatures and electric currents what was proven in measurements of the shape of the beam. Influence of the tuning process on generated wavelength and stability of the beam was measured. To confirm the effectiveness of the developed software, absorption spectroscopy in rubidium was performed. Software devoted to measurements with PicoScope (Pico Technology) oscilloscope has also been developed in C# programming language. The software is designed not only for measurements but also for the analysis of the measured data. Comparison between PicoScope and commonly used TDS 2024B (Teletronix) oscilloscopes was performed. Measurements of simulated fluorescence were realized with a resolution of 50 000 points for each waveform and interval equal to 3 ns. To prepare Mechelle 5000 spectrometer equipped with ICCD iStar 334T camera (Andor Technology), measurements of laser induced fluorescence of iodine molecule was performed. The B3Π+ 0u, υ΄ = 28 −→ X1Σ+ g , υ΄΄ transition has been characterised.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 3.

Tytuł:: Effect of laser irradiation on the biochemical changes in seeds and the accumulation of dry matter in the faba bean
Autorzy:: Podlesny, J.
Tematy:: biochemical change
development
dry matter
laser irradiation
yield
laser light
enzyme activity
biostimulation
faba bean
accumulation
germination
seed; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/24250.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Selected Aspects of the Application of Terrestrial Laser Scanning as a Tool to Support the Development of Rural Areas
Wybrane aspekty zastosowania naziemnego skaningu laserowego jako narzędzia wspomagającego zagospodarowanie obszarów wiejskich
Autorzy:: Pluta, M.
Biłka, P.
Tematy:: rural development
terrestrial laser scanning
agriculture
forestry
architecture
rozwój obszarów wiejskich
naziemny skaning laserowy
rolnictwo
leśnictwo
architektura; Pokaż więcej
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Powiązania:: https://bibliotekanauki.pl/articles/385765.pdf Link otwiera się w nowym oknie
Opis:: This paper discusses the selected aspects of the application of terrestrial laser scanning as a tool to support the development of rural areas. This paper presents an overview of the current state of knowledge, which is shown in horizontal way. The possibilities of using terrestrial laser scanning in agriculture, forestry and architecture have been discussed as a factors to have an impact to well-organized spatial order as the foundation of optimal use of the existing resources.
W artykule omówiono wybrane aspekty zastosowania nowoczesnej techniki naziemnego skaningu laserowego w procesie zagospodarowania obszarów wiejskich. Praca stanowi przegląd obecnego stanu wiedzy, ujmując problematykę w sposób horyzontalny. Przedstawia możliwości naziemnego skaningu laserowego w rolnictwie, leśnictwie oraz architekturze mające bezpośredni wpływ na kształtowanie ładu przestrzennego, jako podstawy optymalnego wykorzystania obszaru oraz istniejących na nim zasobów.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: IYL 2015 in Poland
Autorzy:: Romaniuk, R. S.
Tematy:: light
light technologies
optoelectronics
photonics
lasers
laser technology
lighting
medical photonics
photovoltaics
optical fibers
technical infrastructure
civilization development
national economy; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/225981.pdf Link otwiera się w nowym oknie
Opis:: Light plays a key role in human’s life. Without light there will be no human life environment. Technologies based on light, called photonics, decide of the development of our civilization. The role of photonics is constantly increasing, especially in such fields as energy, education, agriculture and health. The UN has established the International Year of Light and Light - based Technologies – IYL2015 [1]. The organizers of IYL2015 events are professional organizations, communities, educational organizations, non-profit ones, technological clusters and platforms, but also private sector. The aim is to increase the social consciousness about the role of light and photonics in building of our civilization. This sort of recognition is necessary as a needed component of the development process of the society. Introduction of new technologies, like completely new kind of lighting, new diagnostic and therapeutic methods, new sources of energy, etc., must meet with social acceptance. In the opposite case, isolated development of infrastructure, will meet with obstacles. In Poland, the professional events, technical, trade fairs and outreach ones, are organized in the framework of the IYL2015 by Photonics Society of Poland, Polish Physical Society, Polish Platform of Photonics Technologies, etc. The paper summarizes the issues combined with the organization of the IYL2015 globally and in Poland. Extended version of this paper was published in Polish [2]. The paper is a part of a cycle of articles devoted to analysis of global processes of photonics development. Previous papers concerned initiatives Photonics21 in Europe [3-4], NPI – National Photonics Initiative in USA [5], and development of optical sciences in Poland [6-15].
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Information Modelling of Historical Buildings of Selected Culture Heritage Objects in Moravia Region
Modelowanie informacyjne historycznych budynków wybranych obiektów dziedzictwa kulturowego w regionie Morawy
Autorzy:: Kuruc, Michal
Volarik, Tomas
Vystavel, Ondrej
Berkova, Alena
Chladil, Martin
Tematy:: information modelling
historical buildings
laser scanning
as-built documentation
video game development environment
modelowanie informacji
budynki historyczne
skanowanie laserowe
dokumentacja powykonawcza
środowisko tworzenia gier wideo; Pokaż więcej
Wydawca:: Polskie Towarzystwo Przeróbki Kopalin
Powiązania:: https://bibliotekanauki.pl/articles/59114716.pdf Link otwiera się w nowym oknie
Opis:: Due to current legislation, a local public body is obliged to preserve as-built documentation of its buildings. A form of as-built documentation has been currently transforming according to building information modelling methodology. As-built documentation of listed buildings is an important step in preserving cultural heritage and allows preserving as much information as possible about immovable cultural monuments for future generations. Currently, building information models (BIM) of the real estate cultural heritage objects are being produced due to digitizing and conserving entire buildings with all the construction details with respect to culture heritage needs. Land surveyors are responsible for data acquisition at the building site to deliver geometrically accurate and precise 3D spatial data for the following modelling process as well as georeferencing data to appropriate datum and reference coordinate system. The 3D spatial data is primarily represented by a point cloud acquired by laser scanning technology. Historic buildings typically contain unique construction elements of very different and often more complex geometric shapes, such as arches, columns, statues, attics, etc. Such elements need to be individually modelled from the point cloud with respect to the precision of the model. The modelling process of existing historic building elements becomes far more demanding than the design of the future building. Building elements for new buildings are available in the construction products BIM database for information modelling. n the other hand, a certain degree of generalisation must always be considered when modelling historical buildings. The building elements are more of an aesthetic nature. Hence, the modelling process needs to cover the geometrical shape of the element, construction assembly as well as material definition. The resulting model of the element is geometrically and visually affected by a generalization of spatial information. Nowadays, game development environment tools are increasingly used outside the video game industry, especially in architecture/construction/engineering, automotive, virtual production, etc. Thus, the information model can be delivered to a broader audience of stakeholders without vendor-locked software restrictions. Simultaneously, culture heritage value can be provided to the public in an immersive way. This paper discusses in which cases generalization in the sense of the level of information needed (LOIN) is involved and when it is already a geometric error of modelling regarding the needs of the public body and specification of public procurement. In this paper, the matters mentioned above are described using several case studies of the creation of an information model of listed buildings, namely the Maxmilian’s Court in Kroměříž and the Parish office in Cetkovice.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Projektowanie i analiza zastosowań technologii napawania laserowego dla branży lotniczej
Design and applications analysis of laser cladding technology for aviation industry
Autorzy:: Koruba, P.
Boratyński, T.
Jurewicz, P.
Koenig, G.
Szaroleta, M.
Reiner, J.
Chlebus, E.
Dworak, A.
Tematy:: komputerowe wspomaganie procesów
symulacje multifizyczne
powłoki funkcjonalne
regeneracja łopatek
napawanie hybrydowe
computer aided process development
multiphysics simulation
functional coating
repair of turbine blades
hybrid laser cladding; Pokaż więcej
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Powiązania:: https://bibliotekanauki.pl/articles/196179.pdf Link otwiera się w nowym oknie
Opis:: Technologia napawania laserowego polega na wykorzystaniu wiązki laserowej celem precyzyjnego nałożenia warstwy materiału o podwyższonych właściwościach na podłoże. Szczególne zainteresowanie budzi ona w branży lotniczej. Odpowiednie przygotowanie procesu wiąże się z wykonaniem testów symulacyjnych z wykorzystaniem modeli przepływu dwufazowego oraz interakcji wiązki laserowej z materiałem. Następnie zostają wyznaczone ścieżki ruchu głowicy przy użyciu dedykowanych narzędzi CAD/CAM. W ramach analizy technologii napawania laserowego dla zastosowań branży lotniczej przedstawiono nakładanie powłok funkcjonalnych, będących alternatywą dla chromu elektrolitycznego. Przeanalizowano również metodę regeneracji wierzchołka łopatki turbiny silnika odrzutowego. Zaprezentowano też możliwości obróbki hybrydowej w wytwarzaniu przyrostowym tytanowych komponentów lotniczych oraz metodę monitorowania temperatury celem jakościowej kontroli procesu.
The laser cladding technology consists of the use of laser beam for precise deposition of a material layer with enhanced properties to the substrate. Therefore it finds special interest in the aviation industry. Appropriate preparation of the process involves performing simulation tests using two-phase flow models and laser beam interaction with material. Subsequently, the laser head movement paths are determined using dedicated CAD/CAM software. In the analysis of laser cladding technology applications for the aviation industry, the deposition of functional coatings, being an alternative to electrolytic chromium, was presented. Secondly, the repair of turbine blade tip was also analyzed. Moreover the capabilities of hybrid laser cladding technology with machining for the additive manufacturing aviation components made of titanium alloys were presented, as well as the method of temperature monitoring for the purpose of qualitative process control implementation.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Reverse engineering as a modern methods of test bed modernization
Autorzy:: Cieślik, Wojciech
Mielcarzewicz, Dawid
Rawecki, Michał
Tematy:: modification of test benches
3D laser scanning
research engine
intake system development
CAD modeling
modyfikacja stanowiska testowego
skanowanie laserowe 3D
silnik badawczy
układ dolotowy
modelowanie CAD; Pokaż więcej
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Powiązania:: https://bibliotekanauki.pl/articles/59114571.pdf Link otwiera się w nowym oknie
Opis:: The main purpose of the work is to demonstrate the individual stages involved in the reverse engineering process by using a dynamometer equipped with a single-cylinder research engine AVL 5804 as an example. The project entails theoretical and practical aspects of measurements using 3D scanners. The Scantech KSCAN Magic hand-held optical scanner was used to obtain measurements of the geometry of the dynamometer. The CAD model was created in the Autodesk Inventor program, and its accuracy was verified by comparing it to the scan and generating a scale of deviations along with a color-coded representation of their size in the GOM Inspect program. The work was summarized with an example of upgrading the current stand based on a previously made design, which significantly shortened the process of modifying the intake system.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Role of materials design in maintenance engineering in the context of industry 4.0 idea
Autorzy:: Dobrzański, L. A.
Tematy:: maintenance
4.0 stage of economy
industry development
materials development
designing material conservation and manufacturing 3MD
selective laser sintering
implant-scaffold
laser texturization
multicrystalline silicon cells
cracking counteraction
austenitic steel
TWIP steels
TRIP steel
wear-resistant
CVD coatings
PVD coatings
cutting tool materials
Al alloy matrix nanocomposites
carbon nanotubes
graphene
dye synthesised solar cells
ALD coatings
dentistry
photovoltaics
konserwacja
przemysł 4.0
rozwój przemysłu
rozwój materiałów
selektywne spiekanie laserowe
rusztowanie implantowe
teksturyzacja
ogniwa krzemowe
pękanie stali
stal austenityczna
stal TWIP
stal TRIP
odporność na ścieranie
powłoki CVD
powłoki PVD
narzędzia skrawające
nanokompozyty
osnowa aluminiowa
nanorurki węglowe
grafen
ogniwo słoneczne
powłoki ALD
stomatologia
fotowoltaika; Pokaż więcej
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Powiązania:: https://bibliotekanauki.pl/articles/368329.pdf Link otwiera się w nowym oknie
Opis:: Purpose: The paper presents the issues of designing the maintenance of materials and products in accordance with the idea of Industry 4.0. The author's views on the need for augmentation of the Industry 4.0 model were also presented, as well as the author's original concept that hybrid activities in predictive maintenance and condition-based maintenance should be preceded by designing material, maintenance & manufacturing 3MD at the stage of the product's material designing and technological designing. The 3MD approach significantly reduces the frequency of assumed actions, procedures and resources necessary to remain the condition of this product for the longest possible time, enabling it to perform the designed working functions. Examples of own advanced research on several selected, newly developed materials, used in very different areas of application, confirmed the validity of the scientific hypothesis and the relationship between the studied phenomena and structural effects and the working functions of products and their maintenance and indicated that material design is one of the most important elements guaranteeing progress production at the stage of Industry 4.0 of the industrial revolution. Design/methodology/approach: The author's considerations are based on an extensive literature study and the results of the author's previous study and empirical work. Each of the examples given required the use of a full set of research methods available to modern material engineering, including HRTEM high-resolution transmission electron microscopy. Findings: The most interesting intellectual achievements contained in the paper include presentations of the author's original concepts regarding the augmentation of the Industry 4.0 model, which has been distributed so far, which not only requires augmentation but is actually only one of the 4 elements of the technology platform of the extended holistic model of current industrial development, concerning cyber-IT production aided system. The author also presents his own concept for designing material, maintenance and manufacturing 3MD already at the stage of material and technological design of the product, eliminating many problems related to product maintenance, even before they are manufactured and put into exploitation. Detailed results of detailed structural researches of several selected avant-garde engineering materials and discussion of structural changes that accompanying their manufacturing and/or processing are also included. Originality/value: The originality of the paper is associated with the novelty of the approach to analysing maintenance problems of materials and products, taking into account the requirements of the contemporary stage of Industry 4.0 development. The value of the paper is mainly associated with the presentation of original issues referred to as findings, including the concept of augmentation of the Industry 4.0 model and the introduction and experimental confirmation of the idea by designing material, maintenance and manufacturing 3MD.
Dostawca treści:: Biblioteka Nauki

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