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Tytuł:
Open for the future. More customization for ZEISS O-INSPECT
Autorzy:
Fischer, M.
Balle, B.
Powiązania:
https://bibliotekanauki.pl/articles/132116.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
multisensor measuring machine
metrology
Opis:
The new ZEISS O-INSPECT family provides even more flexibility than before: users can now choose between several machine sizes and configurations of the multisensor measuring machine and various options. For example, they can integrate or retrofit a chromatic focus sensor as needed. In addition to numerous customization options, the new product family also features considerably higher dynamics.
Źródło:
Advanced Technologies in Mechanics; 2015, 2, no. 2 (3); 37-40
2392-0327
Pojawia się w:
Advanced Technologies in Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliably Measure at the Push of a Button – The new, intelligent ZEISS O-SELECT digital measuring projector
Autorzy:
Fischer, M.
Balle, B.
Powiązania:
https://bibliotekanauki.pl/articles/132142.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
measuring projector
metrology
Opis:
ZEISS O-SELECT allows you to quickly and reproducibly measure at the push of a button. The digital measuring projector autonomously selects the right distance, automatically eliminates blur at the edges and even chooses the right measurement program. O-SELECT independently recognizes features such as circles or lines and suggests characteristics such as distance and radius.
Źródło:
Advanced Technologies in Mechanics; 2015, 2, no. 1 (2); 23-27
2392-0327
Pojawia się w:
Advanced Technologies in Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of moving loads in elastic multibody systems with parametric model reduction techniques
Zastosowanie techniki parametrycznej redukcji modelu do symulacji ruchomych obciążeń w sprężystym układzie wieloczłonowym
Autorzy:
Fischer, M.
Eberhard, P.
Powiązania:
https://bibliotekanauki.pl/articles/950682.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multibody systems
model reduction
parametric reduction
odkształcenia sprężyste
model redukcji
metoda parametryczna
Opis:
In elastic multibody systems, one considers large nonlinear rigid body motion and small elastic deformations. In a rising number of applications, e.g. automotive engineering, turning and milling processes, the position of acting forces on the elastic body varies. The necessary model order reduction to enable efficient simulations requires the determination of ansatz functions, which depend on the moving force position. For a large number of possible interaction points, the size of the reduced system would increase drastically in the classical Component Mode Synthesis framework. If many nodes are potentially loaded, or the contact area is not known a-priori and only a small number of nodes is loaded simultaneously, the system is described in this contribution with the parameter-dependent force position. This enables the application of parametric model order reduction methods. Here, two techniques based on matrix interpolation are described which transform individually reduced systems and allow the interpolation of the reduced system matrices to determine reduced systems for any force position. The online-offline decomposition and description of the force distribution onto the reduced elastic body are presented in this contribution. The proposed framework enables the simulation of elastic multibody systems with moving loads efficiently because it solely depends on the size of the reduced system. Results in frequency and time domain for the simulation of a thin-walled cylinder with a moving load illustrate the applicability of the proposed method.
W sprężystym układzie wieloczłonowym rozważane są duże, nieliniowe ruchy ciał sztywnych oraz małe odkształcenia sprężyste. W rosnącej liczbie zastosowań, np. W przemyśle motoryzacyjnym, procesach toczenia i frezowania, pozycja sił działających na ciało sprężyste jest zmienna. Redukcja rzędu modelu, niezbędna by umożliwić efektywną symulację, wymaga wyznaczenia funkcji ansatz, które zależą od zmiennej pozycji sił. Przy wielkiej liczbie możliwych punktów interakcji rozmiar zredukowanego systemu rósłby gwałtownie, gdyby stosować klasyczny schemat syntezy modów składowych (Component Mode Synthesis). Jeśli wiele węzłów jest potencjalnie obciążonych, lub obszar styku nie jest znany a priori, w ujęciu przedstawionym w artykule system opisuje się przy pomocy zależnej od parametru pozycji sił. Umożliwia to zastosowanie metod parametrycznej redukcji rzędu modelu. W artykule opisano dwie techniki oparte na interpolacji macierzowej, które transformują poszczególne systemy zredukowane, umożliwiają interpolację macierzy zredukowanych systemów i pozwalają wyznaczyć systemy zredukowane dla dowolnej pozycji sił. Zaprezentowano dekompozycję w trybie online-offline oraz opis rozkładu sił na zredukowanym ciele sprężystym. Zaproponowany schemat postępowania umożliwia efektywną symulację sprężystych układów wieloczłonowych z ruchomymi obciążeniami, gdyż zależy ona wyłącznie od rozmiaru zredukowanego systemu. Przedstawiono wyniki symulacji w dziedzinie czasu i częstotliwości dla cienkościennego cylindra z ruchomym obciążeniem, które ilustrują możliwości zastosowań proponowanej metody.
Źródło:
Archive of Mechanical Engineering; 2014, LXI, 2; 209-226
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Development of Democratic Citizens: Can Schools and Teachers Play a Role?
Autorzy:
Fischer, John M.
Powiązania:
https://bibliotekanauki.pl/articles/637126.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
democracy education, democratic attitudes, civic education, educational borrowing, problem-based learning
Opis:
Democratic movements and networks across borders are sharing programs and strategies that are helping the development of a set of ‘universals’: values and beliefs that define what can be called a democratic education. Such universals are contested, but work to help classrooms emerge that link schools with communities and build contextual relationships with students, families and members of the  broader society. Key to these democratic classrooms are tools and strategies of communication, deliberation and decision-making that provide for the sharing of multiple perspectives and work towards the construction of new knowledge. A recent study found that Polish students gained from their participation in such a program. Such studies help emphasize the roles schools and teachers can play in the development of democratic citizens.
Źródło:
Psychologia Rozwojowa; 2008, 13, 2
1895-6297
2084-3879
Pojawia się w:
Psychologia Rozwojowa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
What Might it Mean to Democratize School Reform?
Autorzy:
Fischer, John M.
Mazurkiewicz, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/639588.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Opis:
The goal of education is to prepare individuals for the new world of global connections, competition and the labor market by means of an educational process that works to get students ready for activity, responsibility and deliberation. Within these issues schools and teachers are the focus of much concern. Many reform efforts work to  remove autonomy from the school. “Deskilling,” viewing school improvement through the lens of packaged programs that work to script teachers, prescribe what they should do in their context, and pull more and more control to central authorities, is not a new phenomenon. Recently, however, teachers have been recognized as necessary leaders in school reform.How might those based in universities proceed to work and change the situation we find in schools? Rather than one-shot, one-way school reform efforts and programs which are known to have little impact compared to long-term, collegial work, our work with schools should be based on building professional relationships. Democratic school  reform is possible. By working (as it was mentioned) to link schools, universities and communities in engaged, reciprocal, networks of support we can strengthen the outcomes and the success of school reform in ways that lift up students, teachers, communities, universities and democratic societies themselves.
Źródło:
Zarządzanie Publiczne; 2008, 4
2084-3968
Pojawia się w:
Zarządzanie Publiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rectification in Fullerene (C$\text{}_{60}$)-Phthalocyanine Thin Film Sandwich Structures
Autorzy:
Anderson, T.
Akselrod, L.
Fischer, C. M.
Roth, S.
Powiązania:
https://bibliotekanauki.pl/articles/1933395.pdf
Data publikacji:
1995-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.40.Ei
73.61.Ph
73.40.-c
Opis:
Bilayer sandwich structures were fabricated by the sequential thermal evaporation of gold, copper phthalocyanine (CuPc), C$\text{}_{60}$ and gold onto sapphire substrates. When the current-voltage characteristics of a freshly made device are measured in an atmosphere of argon, fairly strong rectification is observed. When the bilayer device is exposed to ammonia vapor, the rectification slowly decreases and almost disappears. If the device is then placed under vacuum and the ammonia removed, the initial conditions slowly return. We attribute the rectification to the formation of a p-n junction.
Źródło:
Acta Physica Polonica A; 1995, 87, 4-5; 877-880
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Hydrogen on the Electronic Properties of GaAs$\text{}_{1-y}$N$\text{}_{y}$ Heterostructures
Autorzy:
Bissiri, M.
Gaspari, V.
Baldassarri H. v. H., G.
Ranalli, F.
Polimeni, A.
Capizzi, M.
Nucara, A.
Geddo, M.
Fischer, M.
Reinhardt, M.
Forchel, A.
Powiązania:
https://bibliotekanauki.pl/articles/2028796.pdf
Data publikacji:
2001-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.66.Fd
71.55.Eq
78.55.Cr
Opis:
We have performed photoluminescence measurements in order to study the optical properties of hydrogenated GaAs$\text{}_{1-y}$N$\text{}_{y}$/GaAs heterostructures for y ranging from 0 to 0.03. Hydrogen irradiation leads to: (i) a progressive passivation of N-related recombination lines for low N content (y≈ 0.001); (ii) a sizable blue shift of the band gap in the "alloy" limit (y≈0.01). Thermal annealing restores the optical properties samples had before hydrogenation. These results can be accounted for by the formation of N$\text{}^{-}$ -H$\text{}^{+}$ complexes and demonstrate that hydrogen irradiation provides a powerful tool for the analysis of photoluminescence spectra of GaAs$\text{}_{1-y}$N$\text{}_{y}$.
Źródło:
Acta Physica Polonica A; 2001, 100, 3; 365-371
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrogen Tuning of (InGa)(AsN) Optical Properties
Autorzy:
Baldassarri H. v. H., G.
Ranalli, F.
Bissiri, M.
Gaspari, V.
Polimeni, A.
Capizzi, M.
Nucara, A.
Geddo, M.
Fischer, M.
Reinhardt, M.
Forchel, A.
Powiązania:
https://bibliotekanauki.pl/articles/2028813.pdf
Data publikacji:
2001-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.66.Fd
71.55.Eq
78.55.Cr
Opis:
The effects of atomic hydrogen irradiation on the optical properties of (InGa)(AsN) single quantum wells investigated by means of photoluminescence spectroscopy. For increasing hydrogen dose, the photoluminescence band peak energy of each nitrogen-containing sample blue-shifts and for high hydrogen dose it reaches that of a corresponding nitrogen-free reference sample. This effect is accompanied by a broadening of the photoluminescence band line width and by a decrease in the photoluminescence efficiency. Thermal annealing at 550ºC fully restores the original band gap value and the photoluminescence line width of the sample before hydrogenation. An interpretation of these phenomena is proposed in terms of an H perturbation of the charge distribution around the strongly electronegative N atoms, leading most likely to the formation of H-N complexes, and to an ensuing electronic passivation of nitrogen.
Źródło:
Acta Physica Polonica A; 2001, 100, 3; 373-378
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Śladami badań Władysława Jedlińskiego – określenie pochodzenia świerka na terenie Nadleśnictwa Skrwilno
Following the research of Wladyslaw Jedlinski – determination of the origin of spruce in the Skrwilno Forest District
Autorzy:
Lewandowski, A.
Litkowiec, M.
Fischer, A.
Powiązania:
https://bibliotekanauki.pl/articles/1008413.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Nadlesnictwo Skrwilno
drzewa lesne
swierk pospolity
Picea abies
pochodzenie roslin
markery genetyczne
DNA mitochondrialny
origin
picea abies
mitochondrial marker
Opis:
Origin of Norway spruce in the territory of Skrwilno Forest District was studied with the use of mitochondrial mt−D02 region inherited through maternal line. The former suppositions of Jedliński, who claimed that the origin of spruce in this territory was natural, have been confirmed. Concurrently, it has been established that in the majority of tree stands subject to our study there occurs spruce of Carpathian origin. The obtained results together with the palinological data indicate that the northern border of spruce range in Poland runs right through the territory of Skrwilno Forest District and not about 100 km to the south from this place as has been claimed so far.
Źródło:
Sylwan; 2012, 156, 09; 703-709
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A perfect warning to avoid collisions at sea?
Autorzy:
Baldauf, M.
Mehdi, R.
Fischer, S.
Gluch, M.
Powiązania:
https://bibliotekanauki.pl/articles/135016.pdf
Data publikacji:
2017
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
collision avoidance
collision warning
manoeuvring decision support
dynamic prediction methods
Fast-Time-Simulation
Opis:
Avoidance of collisions is one of the most important tasks for the officer of the watch on a ship’s bridge. Measures and actions required to avoid such accidents are described in the Convention on the International Regulations for Preventing Collisions at Sea (COLREGs) adopted by the International Maritime Organization (IMO) in 1972 and still valid, with several minor amendments, since then. On the basis of a proper look-out at all times, by sight and hearing, and the use of all available means, also including technical equipment installed on-board as well as information provided by a Vessel Traffic Service (VTS), the navigating officer collects traffic and environmental data and combines them with their own ship data to construct a mental traffic image for the assessment of risk of collision with other objects in the vicinity. In the case wherre there is an unacceptable risk she or he has to decide on taking action. In most of the cases decision making is appropriate to the prevailing circumstances and ships maneuver and pass at a safe distance. Only in very rare cases, due to whatever reasons, watch officers fail in taking appropriate actions in good time. It is assumed that, if effective alerting algorithms would be available, a substantial number of collisions at sea, and especially in coastal waters, can be avoided by making the watch officer aware that the ‘last line of defence’ for taking action is close to come. It is assumed that there is potential in applying the principle of the resolution advisory alert of an ACAS (Airborne Collision Avoidance System)/TCAS (Traffic Alert and Collision Avoidance System) in aviation and adapt it to the needs of maritime traffic. In this paper, the authors introduce a method for triggering collision warnings by focusing specifically on the critical last phase of an encounter and taking into account the maneuvering characteristics of the navigating ship. They comprehensively explore the application using scenario studies discussing the operational aspects of varying implementation states (one ship only, SOLAS ships only).
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2017, 52 (124); 53-64
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Manoeuvring Simulation on the Bridge for Predicting Motion of Real Ships and as Training Tool in Ship Handling Simulators
Autorzy:
Benedict, K.
Kirchhoff, M.
Gluch, M.
Fischer, S.
Baldauf, M.
Powiązania:
https://bibliotekanauki.pl/articles/116460.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Manoeuvring
Manoeuvring Simulator
Predicting Motion
Real Ships
Training Tool
ship handling simulator
Navigational Bridge
Full Mission Bridge Simulator (FMBS)
Opis:
International sea transport has growing rapidly during the period of the last decade. Ships became larger and wider and its container capacity is still increasing to 12.000 TEU and even more. To navigate such vessels safely from port to port and specifically within the ports more and more enhanced computer-based systems are installed on the ships navigational bridges. Prediction tools are very helpful and already in use on ships for a long time. However, the simplification of existing predictions allows restricted use only and do not include the immediate response on changes of rudder and engine. Within this paper investigations into the feasibility and user acceptance of newly developed layout of navigation display will be introduced and selected results of simulation studies testing the influence on manoeuvre performance dependent on different kind of prediction functions will be discussed. Examples will be given for results from test trials in the full mission ship handling simulator of the Maritime Simulation Centre Warnemunde and a concept for the application of the developed .tools for purposes of collision avoidance is described.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 1; 25-30
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation-Augmented Methods for Safe and Efficient Manoeuvres in Harbour Areas
Autorzy:
Benedict, K.
Kirchhoff, M.
Gluch, M.
Fischer, S.
Schaub, M.
Baldauf, M.
Powiązania:
https://bibliotekanauki.pl/articles/116369.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
manoeuvres in harbour areas
harbour areas
Simulation-Augmented Manoeuvring Design and Monitoring (SAMMON)
Fast-Time Manoeuvring Simulation Technology (FTS)
Co-operative Ship Operation in Integrated Maritime Traffic Systems (COSINUS)
Maritime Unmanned Navigation through Intelligence in Networks (MUNIN)
Innovative Ship Simulation and Maritime Systems (ISSIMS) Navigational Methods Development
Opis:
Safety of navigation is especially challenging and critical when a ship approaches and manoeuvres in harbour areas. Improving the safety especially in the first and last phase of a voyage is crucial and requires measures addressing both the human and technical-technological elements including support systems that shall provide human operators with information relevant for decision making. The present situation is characterized by the introduction of numerous sophisticated technical and support systems often integrated with several components becoming increasingly complex. On the users end, changes are not that obvious and not that rapid as for technology. However, new approaches are under development or already in use. They are characterized by applying and adapting solutions from other transport modes. In this way, tasks and procedures on ships, that are highly safety-relevant and containing high portions of manoeuvring activities have been changed to high back-up procedures as in air planes. For port manoeuvres e.g. the system of pilot/co-pilot was introduced on ferries in a sense that one officer is operating and the other is monitoring and checking the safe performance. In cruise shipping, new structures replacing the traditional rank-based with a flexible system based on job functions. This system creates a kind of a safety net around the person conning the vessel. Each operation is cross checked before execution by one or two other persons. The first obvious consequence is higher costs due to doubling personnel. On the other hand there is also a need for a technology appropriately supporting the checking officer by enabling her or him to monitor what the conning officer is doing. “Fast-Time Manoeuvring Simulation Technology” (FTS) developed at the Institute for Innovative Ship Simulation and Maritime Systems (ISSIMS) has huge potential to fulfil this task. FTS calculates within one second of computing time up to 1000 seconds of real manoeuvring time by a very complex ship-dynamic simulation model for rudder, engine and thruster manoeuvres. It enables prompt prediction of all manoeuvres carried out by the conning officer for the observing officer, too. Predictions of path and motion status allow all officers to see whether the manoeuvring actions have at least the correct tendency or indicating the need for corrections. This new type of support is called Simulation-Augmented Manoeuvring Design and Monitoring (SAMMON) – it allows not only overlooking the next manoeuvring segment ahead but also for the following or even for series of manoeuvring segments. This technology has been used within two research projects: COSINUS (Co-operative Ship Operation in Integrated Maritime Traffic Systems) set out for implementing FTS into integrated ship bridges and to also communicate the manoeuvre plans and display it to VTS centres. Within the European project MUNIN (Maritime Unmanned Navigation through Intelligence in Networks) this technology has been used to investigate if it is possible to steer autonomous ships, in case it would be necessary.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 193-201
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation Augmented Manoeuvring Design and Monitoring – a New Method for Advanced Ship Handling
Autorzy:
Benedict, K.
Kirchhoff, M.
Gluch, M.
Fischer, S.
Schaub, M.
Powiązania:
https://bibliotekanauki.pl/articles/117040.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Handling
Simulation, Simulation Augmented Manoeuvring Design and Monitoring (SAMMON)
Maritime Simulation Centre Warnemuende
Manoeuvring
Ship Handling Operation
ship handling simulator
Advanced Ship Handling
Opis:
A fast time simulation tool box is under development to simulate the ships motion with complex dynamic models and to display the ships track immediately for the intended or actual rudder or engine manoeuvre. Based on this approach the innovative “Simulation Augmented Manoeuvring Design and Monitoring” - SAMMON tool box will allow for (a) a new type of design of a manoeuvring plan as enhancement exceeding the common pure way point planning (b) an unmatched monitoring of ship handling processes to follow the underlying manoeuvring plan. During the manoeuvring process the planned manoeuvres can be constantly displayed together with the actual ship motion and the predicted future track which is based on actual input data from the ship’s sensors and manoeuvring handle positions. This SAMMON tool box is intended be used on board of real ships but it is in parallel an effective tool for training in ship handling simulators: (a) in the briefing for preparing a manoeuvring plan for the whole exercise in some minutes, (b) during the exercise run to see the consequences of the use of manoeuvring equipment even before the ship has changed her motion and (c) in debriefing sessions to discuss potential alternatives of the students decisions by simulating fast variations of their choices during the exercises. Examples will be given for results from test trials on board and in the full mission ship handling simulator of the Maritime Simulation Centre Warnemuende.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 131-141
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrazinium 5-Aminotetrazolate: an Insensitive Energetic Material Containing 83.72% Nitrogen
Autorzy:
Fischer, N.
Klapötke, T. M.
Scheutzow, S.
Stierstorfer, J.
Powiązania:
https://bibliotekanauki.pl/articles/358539.pdf
Data publikacji:
2008
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
hydrazines
tetrazoles
crystal structure
energetic materials
sensitivities
Opis:
Hydrazinium 5-aminotetrazolate (2) was synthesized via two facile routes. Both the reaction of 5-amino-1H-tetrazole (1) with hydrazine hydrate in aqueous solution and the reaction of 1 with diluted hydrazine solution in THF yield 2 in excellent purities and yields. 2 was characterized comprehensively by X-ray diffraction, IR, Raman and multinuclear NMR spectroscopy, mass spectrometry, elemental analysis and differential scanning calorimetry. The heat of formation was calculated (CMS-4M) using the atomization method to be 373 kJ mol-1. With this value and the X-ray density several detonation parameter (heats of explosion, detonation pressure, detonation velocity, explosion temperature) were calculated with the EXPLO5 computer software. An incredible high value (9516 m s-1) was obtained for the detonation velocity. Therefore experimentally tests to determine the velocity of detonation were performed. In addition the use of 2 in solid propellant compositions was calculated and tested in combination with oxidizers, e.g. ammonium dinitramide. Lastly the sensitivities towards impact, friction and electrostatic discharge were determined with the BAM drophammer, friction tester and an ESD machine.
Źródło:
Central European Journal of Energetic Materials; 2008, 5, 3-4; 3-18
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mała retencja – komory i panele drenażowe
Small-scale retention: drainage chambers and panels
Autorzy:
Szymańska-Pulikowska, A.
Jurecki, M.
Thornagel, T.
Fischer, W.
Powiązania:
https://bibliotekanauki.pl/articles/407470.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczo-Rozwojowy Inżynierii Lądowej i Wodnej Euroexbud
Tematy:
wody opadowe
komory i panele drenażowe
mała retencja
spływ powierzchniowy
fala powodziowa
rainwater
drainage chambers and panels
small scale retention
surface water runoff
flood wave
Opis:
W celu zagospodarowania wód opadowych (roztopowych) na terenach mieszkaniowych i przemysłowych, gdzie istnieją ograniczenia przestrzenne oraz tam, gdzie wykonanie dodatkowych przyłączy do sieci kanalizacji deszczowej jest utrudnione lub wręcz niemożliwe, można stworzyć system komór i paneli drenażowych, występuje zwiększenie małej retencji wodnej w następstwie ograniczenia spływu powierzchniowego wód opadowych (roztopowych), a tym samym złagodzenie (spłaszczenie) fali powodziowej (wezbraniowej).
To utilize rainwater (meltwater) in residential and industrial areas where there are some space limitations, and where it is hard or impossible to make additional sewage terminals, there can be created a system of drainage chambers and panels. This contributes to increasing the small-scale retention resulting from limiting the run-off of rainwater and meltwater, as a result of which flood wave gets flattened.
Źródło:
Zeszyty Naukowe. Inżynieria Lądowa i Wodna w Kształtowaniu Środowiska; 2013, 8-9; 57-63
2082-6702
Pojawia się w:
Zeszyty Naukowe. Inżynieria Lądowa i Wodna w Kształtowaniu Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 23

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