Lodz University of Technology

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    4466 research outputs found

    Getting continuity of coordinate functionals related to filter Schauder basis

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    Laserowy czujnik pary wodnej

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    Autorka artykułu jest pracownikiem Działu PromocjiArtykuł zamieszczony jest w : Życie Uczelni : biuletyn informacyjny Politechniki Łódzkiej, nr 159, Luty 2022Fizycy z PŁ pracują nad innowacyjnym optycznym analizatorem pary wodnej, który w porównaniu do analogicznych rozwiązań dostępnych obecnie na rynku w znacznym stopniu zmniejszy zużycie energii i będzie dużo tańszy

    Coaching drugiej szansy

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    Lodz University of Technology co-creates green revolution in European Industry

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    More on the website „Życie Uczelni” – p.lodz.pl/enArtykuł zamieszczony jest w : Życie Uczelni : biuletyn informacyjny Politechniki Łódzkiej, nr 159, Luty 2022Naukowcy Politechniki Łódzkiej uczestniczą w europejskim konsorcjum FLEXIndustries. W ramach projektu Horyzont Europa ponad 17 mln euro zostanie przeznaczone na rozwiązania wspomagające inteligentną transformację energetyczną w dużych zakładach przemysłowych.Researchers from Lodz University of Technology participate in the European FLEXIndustries consortium. Under the Horizon Europe project over EUR 17 million will be allocated for innovative solutions supporting smart energy transformation in large industrial plants. The partners from Turkey, Greece, Bulgaria, Spain, Italy and Poland will implement intelligent systems that ensure lower energy consumption, use of renewable energy sources, waste heat recovery and reduction of CO2 emissions

    Nauka staje się coraz droższa

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    Autorka artykułu jest pracownikiem Wydawnictw Uczelnianych - Biblioteka Politechniki ŁódzkiejArtykuł zamieszczony jest w : Życie Uczelni : biuletyn informacyjny Politechniki Łódzkiej, nr 159, Luty 2022Podwyżki cen, galopująca inflacja i zmiany podatkowe dotykają wszystkich Polaków – przekłada się to też na branżę wydawniczą, księgarską i poligraficzną. Sondaż Polskiej Izby Druku, o którym pisze Biblioteka Analiz (1/2022) potwierdza drastyczne wzrosty cen produkcji książek – jest to niespotykany od 30 lat wzrost kosztów produkcji i surowców

    Bath exhaustion on halocromic dyes

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    Halocromic dyes change theis colour with pH. There is a problem focused on the determination of the concentration for halochromic dyes attached to a fibre. This article studies the influence of halochromism on the absorbance measurement protocol of polyamide dyeing wastewater with Rose Bengal. For this purpose, two dyes are prepared at neutral and acid pH, and their concentrations are to be determined by absorbances of exhaustion and washing wastewaters. In addition, in order to check their fastness, a washing test is carried out on dyed fabrics and on fabrics post treated with a fixer

    Spatial structure`s analysis of 3D knitted spacer fabric

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    The subject of this paper concerns an identification of a spatial structure of a warp-knitted spacer fabric, paying particular attention to the structure of the inner layer. The transverse elasticity of the knitted fabric, both in static and dynamic terms, will depend on the properties of the monofilament, its shape and Young's modulus. The environments of OptaView and Inventor programs were used in the research. Analytical activities were selected that enabled the creation of theoretical models. The empirical verification showed the compliance of the model objects with the actual shape of the threads. It has been proved that the developed methodology can be used in the description of the spatial structure of the spacer knitted fabric as an indispensable element in the numerical experiment of the mechanical properties of the knitted fabric

    Micromechanical models for fabrics and composites made of hybrid yarns from recycled carbon fibers

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    Although the great potential of carbon fibers for use in lightweight applications has been demonstrated in the past, their cost and environmental impact remain a barrier to their widespread use [1]. Recycling of carbon fibers from end-of-life components and combining them with thermoplastic fibers to form hybrid yarns addresses both issues. Due to the stochastic nature of hybrid yarns in terms of recycled carbon fiber (rCF) length and orientation [2], their influence on drapability and performance of rCF composites needs to be investigated. In this paper, a micromechanical model for analysing the dry and composite properties of yarns made from rCF is presented. By using a self-developed framework for generating representative volume elements (RVE) based on parameters such as fiber length, orientation, waviness, and fiber volume content, a variety of idealised random yarn geometries is created. A subsequent simulation step of the compaction of the RVE assures a more realistic RVE geometry. The models are validated by carrying out virtual tests and comparing the results with real tensile tests. The modelling approach can be used for further analyses

    Innowacyjny druk diod elektroluminescencyjnych

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    Autorka artykułu jest pracownikiem Działu Promocji.Artykuł zamieszczony jest w : Życie Uczelni : biuletyn informacyjny Politechniki Łódzkiej, nr 159, Luty 2022Badacze z Katedry Fizyki Molekularnej PŁ uzyskali ponad 1,2 mln zł dofinansowania z NCBR na realizację projektu Nowe metody strukturyzowania drukowanych diod elektroluminescencyjnych typu QD-LED do zastosowań w tablicach świetlnych

    Remote Education – Towards Innovation or a Threat?

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    This paper discusses the results of a study conducted during the Sars-CoV-2 pandemic. The study aimed to reveal individual experiences of remote education from the perspective of students and teachers. Three areas of individual functioning were discussed, the social area, the educational area and the individual area, which were based on the philosophy of the decahedron of education. In the social area, three processes were discussed: globalisation, collectivisation, and socialisation. The next part analyses the process of educating and humanising the individual, showing the transformations in the course of classes and the school environment, as well as the manifestations of the phenomenon of the hidden curriculum. The individual area covered the problem of individual development in the face of remote education and social isolation

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