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Historical-critical edition of Arthur Schnitzler's "Reigen." This edition presents a comprehensive preface analyzing above all the text genesis and the complex printing history, the manuscripts with transcriptions, a print text with a display of textual variants and a commentary.

Printing --- History.

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Trudy "doktora Franciska Skoriny iza Polocka" izvěstny preimuščestvenno va zaměčatel'nycha pečatnycha izdanijacha, vyšedšicha va Pragě i va Vil'ně, va 1517 - 1525 godacha. Glavnyja zadači našego izslědovanija ukazany va zaglavii knigi: vyjasnenie ličnosti Skoriny (voprosa spornago i zaputannago) va svjazi sa obščima sostojaniema umstvennoj žizni jugo-zapadnoj Rossii va XV - XVI věkě, opredělenie napravlenija i vlijanija literaturnoj dějatel'nosgi Skoriny, vyrazivšejsja preimuščestvenno va perevodacha Sv. Pisanija pa russkij jazyka, izučenie izdanij Skoriny va tipografskoma otnošenii i charakteristika jazyka Skoriny; poslednee sostavljaeta predmeta osoboj, vtoroj časti izslědovanija. Doktor Fr. Skorina. Russ. Buchkünstler des 16. Jh. Russ. Durchsuchbare elektronische Faksimileausgabe als PDF. Digitalisiert im Rahmen des DFG-Projektes Digi20 in Kooperation mit der BSB München. OCR-Bearbeitung durch den Verlag Otto Sagner.

Printing --- History. --- Skaryna, Frantsysk,

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Printing --- Language and languages --- Printing of foreign languages --- Style (Printing) --- Style manuals (Printing) --- Editing --- Authorship --- Manuscript preparation (Authorship)

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The integration of endless fiber reinforced composites in additive manufacturing enables the automated production of materials with high mechanical properties such as strength. The current state of the art utilizing print heads with separate fiber and matrix feeds showed that, without active infiltration, the fiber infiltration is poor or not possible for thermoplastics with low flowability (high viscosity). In this work, the improvement of the print head technology and the investigated infiltration effect lead to a significantly higher infiltration. The material selection of thermoplastic matrix (PA6) and fiber reinforcement (carbon fiber) were adjusted for the new process parameters. The selection of the fiber matrix combination was conducted using the interfacial tension calculations at room temperature. The polar and dispersive surface energy of two different carbon fibers as well as the wetting of PA6 polymer melts on carbon fibers and on aluminum carriers were investigated. The calculation of composite properties using material data of the matrix and fiber was used to determine the process windows for specific parameters such as layer height, layer width and nozzle size. Furthermore, the mechanical properties and the cost of the composite can be determined in relationship with the materials used and the fiber volume content. The composition of the fiber sizing and the influence of high processing temperatures was characterized using TGA, FTIR spectroscopy and XPS analysis. The processing parameters and rheological behavior of PA6 thermoplastic resins and mixtures were investigated, and a mixture of 75 wt.% Ultramid B3k and wt.25% of Ultramid B50l from BASF was used for the composite fabrication by material extrusion. The optimization of the extrusion process enables the production of filaments with higher flowability (low zero viscosity), with the fiber infiltration improved by the adjusted rheological behavior. Samples for mechanical and optical analysis were fabricated using the self developed print head and three different types of carbon fibers. Three point bending properties were investigated as a function of layer height and printing temperature; tensile properties of single composite strands fabricated with different printing temperatures and multilayer composite were also characterized. The fiber volume content and the porosity were evaluated in crosssectional analyses. The investigated material combinations, optimization of process parameters and the fiber roving infiltration effect in the print head leads to higher mechanical properties and lower porosity in the composite.

additive manufacturing; 3D printing; composite

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3D printing has revolutionized the microfabrication prototyping workflow over the past few years. With the recent improvements in 3D printing technologies, highly complex microfluidic devices can be fabricated via single-step, rapid, and cost-effective protocols as a promising alternative to the time consuming, costly and sophisticated traditional cleanroom fabrication. Microfluidic devices have enabled a wide range of biochemical and clinical applications, such as cancer screening, micro-physiological system engineering, high-throughput drug testing, and point-of-care diagnostics. Using 3D printing fabrication technologies, alteration of the design features is significantly easier than traditional fabrication, enabling agile iterative design and facilitating rapid prototyping. This can make microfluidic technology more accessible to researchers in various fields and accelerates innovation in the field of microfluidics. Accordingly, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on novel methodological developments in 3D printing and its use for various biochemical and biomedical applications.

Polymerization --- Cytotoxicity --- 3D printing --- Microfluidics --- Photochemistry