170 research outputs found

    [Stammbuch Philipp Ehrenreich Wider] / Philipp Ehrenreich Wieder

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    [STAMMBUCH PHILIPP EHRENREICH WIDER] / PHILIPP EHRENREICH WIEDER [Stammbuch Philipp Ehrenreich Wider] / Philipp Ehrenreich Wieder ( - ) Cover ( - ) Besitzvermerk ([I]r) Beschreibung ([I]v [II]r) Register über sämtliche hierinn befindliche Nahmen. ([II]v [III]r) Nassau-Saarbrücken, Johann Graf zu; Blatt 1 (1r) Nassau-Saarbrücken, Gustav Adolf von; Blatt 2 (2r) Hohenlohe, Georg Friedrich von; Blatt 3 (2v 3r) Castell, Wolfgang George von; Blatt 4 (4r) Geyer von Osterberg, Wolf Christoph; Blatt 5,1 (4v 5r) Tattenpach, Sigismund Friedrich von; Blatt 5,2 (4v 5r) Geyer von Osterberg, Wolfgang Christoph; Blatt 6,1 (5v 6r) Geyer von Osterberg, Maximilian Adam; Blatt 6,2 (5v 6r) von Hanaw, Friedrich Casimir; Blatt 7 (7r) Weltz zu Eberstein und Spiegelfeld, Johann Felix von; Blatt 8 (8r) Rieben, Balthasar von; Blatt 9 (9r) Zorn von Plobsheim, Wolfgang Dietrich; Blatt 10 (10r) Zorn, Georg Diedrich; Blatt 11 (10v 11r) Zorn von Plobsheim, Wolfgang Friedrich von; Blatt 12 (11v 12r) Zorn von Plobsheim, Philipp Reinhardt; Blatt 13 (12v 13r) Zorn von Plobsheim, Egnolph; Blatt 14 (13v 14r) Closen, Sigismund Adam von; Blatt 15 (15r) Behr, Conrad; Blatt 16 (16r) Cothmann, Johann; Blatt 17 (16v 17r) Unbekannt; Blatt 18 (17v 18r) Nicolaus, Daniel; Blatt 19 (18v 19r) Fleischmann, Daniel; Blatt 20 (19v 20r) Keyser, Abraham; Blatt 21 (21r) Portner, Peter; Blatt 22 (22r) Donauer, Christoph Sigmund; Blatt 23 (23r) Möringer, Georg; Blatt 24 (23v 24r) Schmoll, Matthäus; Blatt 25 (25r) Gredel, Johann Joachim; Blatt 26 (26r) Schmidt, Johann; Blatt 27 (27r) Dorsche, Johann Georg; Blatt 28 (27v 28r) Dannhauer, Johann Conrad; Blatt 29 (29r) König, Georg; Blatt 30 (30r) Ludwell, Wilhelm; Blatt 31 (31r) Tydaeus, Jakob; Blatt 32 (32r) Lansius, Thomas; Blatt 33 (33r) Chronneck, Moritz von und zu; Blatt 34 (34r) Pregitzer, Johann Ulrich; Blatt 35 (35r) Kob, Johann; Blatt 36 (36r) Gabler, Johann; Blatt 37 (37r) Nößler, Georg; Blatt 38 (38r) Jungermann, Ludwig; Blatt 39 (39r) Schaller, Jacob; Blatt 40 (40r) Trew, Abdias; Blatt 41 (40v 41r) LeBlanc, Jacob; Blatt 42 (41v 42r) Scheidt, Johann Caspar; Blatt 43 (43r) Haas, Heinrich; Blatt 44 (43v 44r) Schmid, Heinrich; Blatt 45 (45r) Saxenländer, Wolfgang Achatius; Blatt 46 (46r) Geyer von Osterberg, Wolfgang Ernst; Blatt 47 (46v 47r) Flusshardt von Pottendorf zum Thal, Hans Christoph; Blatt 48 (48r) Sinold von Schütz, Johann Helwig; Blatt 49 (48v 49r) Felwinger, Johann Paul; Blatt 50 (50r) Scheid, Balthasar; Blatt 51 (50v 51r) Spleiss, Stephan; Blatt 52 (52r) Wider, Johann Christoph; Blatt 53 (53r) Spatz, Johann; Blatt 54 (53v 54r) Raiß, Johann; Blatt 55,1 (55r) Krannöst, Andreas; Blatt 55,2 (55r) Wider, Matthias; Blatt 55,3 (55v 55ar) Welser, Wolfgang Leonhard; Blatt 56 (55av 56r) Zorer, Johannes; Blatt 57 (57r) Wagner, Johann Jacob; Blatt 58 (58r) Förstel, Christoph; Blatt 59 (58v 59r) Winckler, Tobias; Blatt 60 (59v 60r) Rotich, Erdmann; Blatt 61 (61r) Frenzel, Johann Wolfgang; Blatt 62 (61v 62r) Portner, Johann Albrecht; Blatt 63 (63r) Scharde, Georg Wilhelm; Blatt 64 (64r) Fussenegger, Jacob; Blatt 64,2 (64ar) Koch, Anton; Blatt 65 (65r) Gerner, Josias; Blatt 66 (66r) Mantz, Hartmann; Blatt 67 (67r) Breitschwerdt, Felix Wilhelm; Blatt 68 (68r) Rollwagen, Wolfgang Everhard; Blatt 69 (68v 69r) Lentz, Johann Caspar; Blatt 70,1 (70r) Schmidt, Johann; Blatt 70,2 (70r) Zech, Caspar; Blatt 71 (70v 71r) Rhelin, Johann; Blatt 72 (71v 72r) Schmidt, Johann Philipp; Blatt 73 (72v 73r) Schülin, Sigismund; Blatt 74,1 (73v 74r) Beutel, Johann Caspar; Blatt 74,2 (73v 74r) Eder, Balthasar; Blatt 75 (74v 75r) Dürsch, Michael; Blatt 76,1 (75v 76r) Thomae, Heinrich; Blatt 76,2 (75v 76r) Werner, David; Blatt 77,1 (76v 77r) Glandorp, Friedrich Peter; Blatt 77,2 (76v 77r) Leopold, Oswald; Blatt 78,1 (77v 78r) Schwengefeldt, Johann Melchior; Blatt 78,2 (77v 78r) Radius, Hieronymus; Blatt 79,1 (78v 79r) Annacker, Johann; Blatt 79,2 (78v 79r) Völcker, Johann Ludwig; Blatt 80,1 (79v 80r) Grafenthal, Martin; Blatt 80,2 (79v 80r) Deubel, Albert; Blatt 81 (80v 81r) Gall, Martin; Blatt 82 (82r) Krämer, Johann Georg; Blatt 83 (82v 83r) Hansemann, Christoph; Blatt 84,1 (84r) Schuler, Johann; Blatt 84,2 (84r) Einlage ( -

    Prospective study on the Eustachian tube function during Frenzel maneuver in a hypobaric/hyperbaric pressure chamber

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    Introduction!#!The Frenzel maneuver describes a technique for middle ear equalizing which is frequently used by apnea divers. It offers advantages compared to the most commonly used techniques such as the Valsalva or Toynbee maneuver. Until now, there is insufficient literature about the pressure dynamics and Eustachian tube (ET) function during the Frenzel maneuver. The aim of the present study was to characterize the ET function during the Frenzel maneuver.!##!Materials and methods!#!By means of an established standardized profile of compression and decompression in a hypo/hyperbaric pressure chamber, we examined different parameters such as the ET opening pressure (ETOP), ET opening duration (ETOD), and ET opening frequency (ETOF) in 11 experienced apnea divers and compared them to the parameters during the Valsalva and Toynbee maneuver.!##!Results!#!Standard values for ETOP, ETOD, and ETOF could be established for the Frenzel maneuver under standardized conditions in a hypo/hyperbaric pressure chamber. Compared to the Frenzel maneuver, ETOP was higher and ETOD longer (both p < 0.001) during the Valsalva maneuver whereas ETOP was lower and ETOD shorter (both p < 0.001) during the Toynbee maneuver. No difference regarding ETOF was observed between the Frenzel, Valsalva, and Toynbee maneuver.!##!Discussion!#!The Frenzel maneuver was shown to be at least as effective as the Valsalva maneuver concerning ET opening. We believe that knowledge of the Frenzel technique might facilitate the pressure equalization during diving and recommend implementation of an appropriate equalization training in apnea and scuba diving education

    Exergetical evaluation of biobased synthesis pathways

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    The vast majority of today’s chemical products are based on crude oil. An attractive and sustainable alternative feedstock is biomass. Since crude oil and biomass differ in various properties, new synthesis pathways and processes have to be developed. In order to prioritize limited resources for research and development (R & D), their economic potential must be estimated in the early stages of development. A suitable measure for an estimation of the economic potential is based on exergy balances. Different structures of synthesis pathways characterised by the chemical exergy of the main components are evaluated. Based on a detailed evaluation of the underlying processes, general recommendations for future bio-based synthesis pathways are derived.Values, Technology and InnovationTechnology, Policy and Managemen

    Bewertung von Syntheserouten auf Basis von Exergiebilanzen

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    The vast majority of chemical products is based on crude oil. On the one hand, crude oil is a limited resource, whose depletion will be more expensive and riskier in the future. On the other hand, using fossil raw materials is at last associated with carbon dioxide emissions. Anthropogenic emissions of greenhouse gases like carbon dioxide are responsible for the global climate change. An alternative carbon source is biomass. In contrast to crude oil, biomass is a renewable resource and it has functional groups fossil raw materials do not have. These can be used for synthesis. Therefore, biomass is an attractive feedstock for carbon based synthesis pathways.With a few exceptions, the development of bio-based synthesis pathways is currently only at the beginning. Therefore, it is interesting to know which bio-based synthesis pathways promise a high economic potential for managing research and development efforts reasonably. Due to the early stage of development of these routes, only little information about their prospective chemical processes is available. For an evaluation of such synthesis pathways - independent of the kind of feedstock -, a combination of material and exergy balances is suitable and applied in this thesis. Compared to energy balances, exergy balances have the advantage that a comparison of the quality of different forms of energy is possible, whereby the significance of the results increases.In this thesis, different approaches and structures of synthesis pathways characterised by the chemical exergy of the main components are thermodynamically evaluated and general recommendations for future bio-based synthesis pathways are derived. The examinations have shown that, from an exergetical point of view, synthesis pathways are favorable if the chemical exergy of their main components are relatively similar. Due to the high oxygen content of biomass, the chemical exergy is low compared to crude-oil. Using biomass as feedstock synthesis pathways leading to end products with a high oxygen content are promising to have low exergy losses. For a complete raw material change towards biomass, agricultural land is required to produce biomass. Because of a rising world population and a general increasing demand for agricultural products, agricultural land is a scarce resource. Thus, in this thesis the land use required for a complete raw material change is estimated under various boundary conditions. It has been shown that the structure of synthesis pathways that promise low exergy losses have a low land use as well. Since both exergy losses and land use is low, new end products with a high oxygen content and corresponding synthesis pathways should be developed if biomass is used as feedstock

    Data from: A 3D Analysis of Dendritic Solidification and Mosaicity in Ni-Based Single Crystal Superalloys

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    Author: F. Scholz, M. Cevik, P. Hallensleben, P. Thome, G. Eggeler, J. Frenzel Affiliation: Ruhr University Bochum Date: 08/2021 Material: Nickel-base superalloy ERBO/1 (more details: Parsa, A. B., et al. Advanced scale bridging microstructure analysis of single crystal Ni-base superalloys. Adv. Eng. Mater. 2015, 17 (2), 216-230, https://doi.org/10.1002/adem.201400136) Casting: Bridgman seed technique; Withdrawal rate: 180 mm/h, Thermal gradient 13.3 K/mm (more details: Hallensleben, P., et al. On the evolution of cast microstructures during processing of single crystal Ni-base superalloys using a Bridgman seed technique, Mat. Des. 2017, 128, 98–111, https://doi.org/10.1016/j.matdes.2017.05.001) Sample: Cross sectional slices extracted perpendicular to the growth direction of a single crystal superalloy cylinder (diameter 12mm, length 120 mm). Image acquisition: Optical microscope of type Axio (Carl Zeiss GmbH) equipped with a high-resolution CCD-camera of type Leica DFC320 and stepper-motor driven sample stage of type Tango Desktop (Märzhäuser) Image pre-processing: Preparation of wide-field image collages using the stitching procedures implemented in software package Imagic ims (https://imagic.ch/en/imagic-ims, 07/2021) Image post-processing: Image registration with CorelDraw X7 (: https://www.coreldraw.com/en/, 07/2021) using a contour reference mask Quantitate analysis: Dendrite positions were extracted using the software package ImageJ (https://imagej.de.softonic.com/, 07/2021). -------------------------------------- The five optical micrographs cross sections represent image data which were obtained by tomographic characterization of as-cast single crystal nickel-base superalloy prepared by a seeded Bridgman technique. The material has been studied in the frame of the collaborative research center SFB/TR 103. All details on the applied Bridgman technique are described in the literature (Hallensleben, P., et al., Mat. Des. 2017, 128, 98–111, https://doi.org/10.1016/j.matdes.2017.05.001 and Hallensleben, P., et al., Crystals 2019, 9 (3), 149, https://doi.org/10.3390/cryst9030149). The tomographic image slices were prepared by successive electro discharge machining using incremental steps of 1mm. The image series represents the evolution of dendritic microstructures during the early stages of crystal growth from the back melted seed. The five wide-field micrographs were used to retrieve dendrite positions (enclosed as CSV data for each cross section) to evaluate crystal mosaicity on the basis of dendrite growth directions. All information and a detailed interpretation of tomographic are available in (Scholz, F., PhD-thesis, Ruhr University Bochum, https://doi.org/10.13154/294-8079). We hope that our image data will be useful for other types of solidification research. Please provide a notification by personal mail on the re-use of our raw data. Thank you. All images and dendrite position data were evaluated in the following study concerning dendrite growth behavior, low angle misorientation defects, dendrite arrangements and spacings: Scholz, F.; Cevik, M.; Hallensleben, P.; Thome, P.; Eggeler, G.; Frenzel, J. A 3D Analysis of Dendritic Solidification and Mosaicity in Ni-based Single Crystal Superalloys, Materials 2021, 14 (17), 4904 (https://doi.org/10.3390/ma14174904)

    Webinar: Electronics Technology

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    This webinar, provided by the Maricopa Advanced Technology Education Center (MATEC), was presented on September 20 2013. Louis Frenzel, noted author and editor of Electronic Design News, gives an overview of the ultra-current trends and technologies that are driving the industry today. Applications involving wireless, mobile, computers and the green influence on electronic technologies are covered. Frenzel then discusses how colleges are dealing with and educating their students to keep up with these trends in technology. This webinar is accompanied by a corresponding handout and webinar slides.The webinar is one hour and 31 minutes in length
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