218,282 research outputs found
Influence of the printing speed in fused filament fabrication tehnology on flexural strength of polylactic acid
No full textPri izdelavi izdelka s 3D tiskanjem lahko nastavimo številne parametre, ki vplivajo na izgled in lastnosti izdelka. Eden izmed nastavljivih parametrov, je hitrost tiskanja. S spremembo hitrosti tiskanja se spremeni tudi viskoznost materiala, ki ga ekstrudiramo in s tem lastnosti izdelka. V zaključni nalogi smo iskali hitrostno območje v katerem so izdelki narejeni s tehnologijo 3D tiskanja najkvalitetnejši.
V teoretičnem delu smo si pogledali kako deluje 3D tiskalnik po metodi ciljnega nanašanja plasti, kako vplivata temperatura in hitrost tiskanja na viskoznost ter princip delovanja tritočkovnega upogibnega testa. S 3D tiskalnikom smo izdelali vzorce pri različnih hitrostih tiskanja, ki smo jih preizkušali s pomočjo tritočkovnega upogibnega testa. Na koncu smo vzorce vrednotili na podlagi vizualnega izgleda in odstopanj dimenzij ter na podlagi mehanskih lastnosti pridobljenih iz upogibnega testa.When creating a product with 3D printing, we can set a number of parameters that affect the appearence and properties of the product. One of the adjustable parameters is the printing speed. By changing the printing speed, the viscosity of the material to be extruded also changes, and thus the properties of the product can change. In the final task of this thesis, we studied for the speed range, in which the products, made with 3D printing technology, would have the highest quality.
In theoretical part of the thesis, we studied at how a 3D printer works according to the method of fused filament fabrication, how temperature and print speed affect the viscosity and the principles of operation of a three-point bending test. Using a 3D printer, we produced several samples at different printing speeds, which have been tested with a three-point bending test. Finally, the samples were evaluated on the basis of visual appearance and dimensional deviations, and on the basis of mechanical properties obtained from the bending test
Choice of road cross section elements
No full textWhen talking about engineering in practice, feeling or experiences are crucial to streamline the project. Considering this in road construction also - whether it comes to the design of new sections, reconstruction or renovation of existing roads. The thesis addresses the key selection of cross-section parameters of a new road. It includes earthworks, construction and road substructure of the body, the construction of pavement and the drainage systems and the acquisition of land. The analysis is carried out for different categories of road, with different transverse inclination field lines and in different heights of steep roads. \ud
In the first part of the thesis, there are presented elements of the cross-section and parameters of choice. In the analysis of the problem, we used certain simplifications and assumptions; we have also researched the prices per unit planimetric volumes. We described the process by which we come to the tabular and graphically displayed results. \ud
In the second part of the thesis, we related construction costs and land purchases with planimetric amounts in that sense, that the assessment of the investment calculated per unit length is for different lots of choice elements of the cross-section
Odnos verskih skupnosti v Ukrajini do narodne identitete, evroatlantskih povezav ter Rusije
No full textDataset for: Evaluating the effect of textile material and structure for printable and wearable e-textiles
No full textDataset to support article "Evaluating the effect of textile material and structure for printable and wearable e-textiles" Komolafe, A., Glanc-Gostkiewicz, M., Nunes Matos, H. & Torah, R., 12 May 2021, (2021) In: IEEE Sensors Journal.</span
Determination of probabilistic distributions of time headways between vehicles for traffic modeling of unsignalized intersections and roundabouts in Slovenia
No full textNesemaforizirana križišča so najpogostejša oblika križišč. Četudi so njihove pretočnosti morda manjše od ostalih vrst križišč, igrajo pomembno vlogo v prometni mreži. Magistrska naloga obravnava sprejemljive razmake v nesemaforiziranih ter krožnih križišč.
Za dimenzioniranje nesemaforiziranih križišč in krožnih križišč se uporabljajo modeli sprejemljivega razmaka. Glavna parametra teh modelov sta kritični razmak (tc) in čas sledenja (tf). Kapacitetni izračuni po teoriji sprejemljivega razmaka so narejeni po metodlogiji HCM, ki jo priznava in predpisuje tudi Direkcija RS za infrastrukturo za semaforizirana in nesemaforizirana križišča in je določena s Pravilnikom o projektiranju cest (Ur.l. RS, št. 91/2005, Ur.l. RS, št. 26/2006, 109/2010-ZCes-1) ter Pravilnikom o cestnih priključkih na javne ceste (Ur.l. RS, št. 86/2010, Ur.l. RS, št. 109/2010-ZCes-1). Slednja podaja vrednosti kritičnih razmakov in časov sledenja, kateri niso nujno reprezentativni za slovenski prostor.
Cilj magistrske naloge je določitev kritičnih razmakov in časov sledenja za slovenski prostor. Za pridobitev časovnih razmakov ter časov sledenja iz video posnetkov križišč se koristijo usluge češkega podjetja RCE systems s.r.o. in njihovim produktom v oblaku DataFromSky TrafficSurvey. Čas sledenja neposredno izmeri programsko orodje medtem, ko kritični razmak določimo po eni izmed številnih statističnih metod.
Izmerjene vrednosti parametrov tc in tf v slovenskem prostoru so nato primerjane s kapacitetnimi analizami različnih modelov v programskem orodju SIDRA INTERSECTION 9.0.Unsignalized intersections are the most common form of intersections. Although their capacities are usually lower than other types of intersections, they have an important role in the transport network. The article deals with gap acceptance parameters at unsignalized intersections and roundabouts.
Gap acceptance models are used for analyzing unsignalized intersections and roundabouts. The main parameters of these models are the critical gap (tc) and follow-up time (tf). Capacity analysis are done according to the HCM methodology, which is also recognized and prescribed by the Slovenian Infrastructure Agency for signalized and unsignalized intersections and determined by the Pravilnik o projektiranju cest (Ur.l. RS, št. 91/2005, Ur.l. RS, št. 26/2006, 109/2010-ZCes-1) and Pravilnik o cestnih priključkih na javne ceste (Ur.l. RS, št. 86/2010, Ur.l. RS, št. 109/2010-ZCes-1). They give values of critical gaps and follow-up times, which are not necessarily representative for Slovenian drivers.
The goal is to determine critical gaps and follow-up times for drivers in Slovenia. Services from RCE systems s.r.o. and their cloud product DataFromSky TrafficSurvey are used to obtain gap times and follow-up times from recorded videos of intersections. Follow-up times are measured directly by the software, while the critical gap is determined by one of many statistical methods.
The obtained results for Slovenian drivers are then compared with the capacity analyzes of various models used with the micro-analytical software SIDRA INTERSECTION 9.0
A.-M. De Matos, Les contrats transfrontières conclus par les consommateurs au sein de l'Union européenne
No full textA.-M. De Matos, Les contrats transfrontières conclus par les consommateurs au sein de l'Union européenne. In: Revue internationale de droit comparé. Vol. 54 N°1, Janvier-mars 2002. pp. 206-208
A.-M. De Matos, Les contrats transfrontières conclus par les consommateurs au sein de l'Union européenne
No full textA.-M. De Matos, Les contrats transfrontières conclus par les consommateurs au sein de l'Union européenne. In: Revue internationale de droit comparé. Vol. 54 N°1, Janvier-mars 2002. pp. 206-208
Potensi Matos Soil Stabilizer Untuk Memperbaiki Kinerja Lapis Pondasi Jalan Tanah- Semen di Atas Tanah Lunak
No full textThe use of local soil materials for alternative pavement material has environmental friendly and saves on transportation costs for road materials. Soil-cement has been used as an alternative pavement material in Indonesia with various degree of successful. The challenge of implementing soil-cement stabilization for pavement material in Indonesia is finding additives to improve performance while achieves strength according to specifications and increasing soil-cement flexibility / ductility especially in fine grained soil. This paper presents the results of a laboratory study of the effect of adding Matos soil stabilizer additives to unconfined compressive strength and soil-cement CBR.A series of unconfined compression and California bearing ratio test according to Indonesian National Standard was carried out on soil-cement and soil-cement + matos samples, to determine the potential of Matos soil stabilizer additives to reduce cement content to achieve the required shear strength and increase ductility of soil-cement. Cement content used are 150 kg / m3 and 300 kg / m3 while Additive matos content is 1 kg / m3. The results of the study showed that the addition of Matos 1 kg / m3 in clay (A-6) stabilized by 150 kg/m³ of cement increased the value of UCSsoaked, CBRsoaked, and durability, while the value of sensitivity to water decrease. UCS values of clay stabilized by 150 kg / m³ and matos 1.0 kg / m³ are equivalent to UC values of stabilized clay by 262 kg / m³ cement
Liderazgo educativo: De lo clásico a la búsqueda de lo autóctono
No full textHow to cite:
Rodríguez-Matos, J. M. (2002). Liderazgo educativo: De lo clásico a la búsqueda de lo autóctono. Pedagogía, 36(1), 140-157.Cómo citar:
Rodríguez-Matos, J. M. (2002). Liderazgo educativo: De lo clásico a la búsqueda de lo autóctono. Pedagogía, 36(1), 140-157
A georeferenced bibliographic compilation of literature and related metadata on global submarine canyon research
No full textThis bibliography was generated by the International Network for Submarine Canyon Investigation and Scientific Exchange (INCISE) Working Group 2.
Last update: August of 2017
WG 2 members include: S.W. Ross (Chair), F.L. Matos, C. Lo Iacono, M-C Fabri, T. Aslam, T. Shank, L. Gunton, S. Roman, M. Pierdonenico, K. Robert, C. Robertson, A. Davies, T. Amaro, M.R. Cunha, M. Almeida.This work contributes to the Institut de Ciències del Mar "Severo Ochoa Centre of Excellence" accreditation CEX2024-001494-S funded by AEI 10.13039/501100011033 of the Spanish Ministry of Science and Innovation.Peer reviewe
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