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The Baron in the Grand Canyon
In The Baron in the Grand Canyon, Steven Rowan presents the first comprehensive look at the life of Baron Friedrich Wilhelm von Egloffstein, mapmaker, artist, explorer, and inventor. Utilizing new German and American sources, Rowan clarifies many mysteries about the life of this major artist and cartographer of the American West. This revealing account concentrates on Egloffstein's activity in the American mountain West from 1853 to 1858. The early chapters cover his roots as a member of an imperial baronial family in Franconia, his service in the Prussian army, his arrival in the United States in 1846, and his links to his scandalous gothic-novelist cousin, Baron Ludwig von Reizenstein. Egloffstein's work as a cartographer in St. Louis in the 1840s led to his participation in John C. Frémont's final expedition to the West in 1853 and 1854. He left Frémont for Salt Lake City where he joined the Gunnison Expedition under the leadership of Edward Beckwith. During this time, Egloffstein produced his most outstanding panoramas and views of the expedition, which were published in Pacific Railroad Reports. Egloffstein also served along with Heinrich Balduin Möllhusen as one of the artists and as the chief cartographer of Joseph Christmas Ives's expedition up the Colorado River. The two large maps produced by Egloffstein for the expedition report are regarded as classics of American art and cartography in the nineteenth century. While with the Ives expedition, Egloffstein performed his revolutionary experiments in printing photographic images. He developed a procedure for working from photographs of plaster models of terrain, and that led him to invent \"heliography,\" a method of creating printing plates directly from photographs. He later went on to launch a company to exploit his photographic printing process, which closed after only a few years of operation. Among the many images in this engaging narrative are photographs of the Egloffstein castle and of Egloffstein in 1865 and in his later years. Also include are illustrations that were published in the PRR, such as \"View Showing the Formation of the Cañon of Grand River [today called the Gunnison River] / near the Mouth of Lake Fork with Indications of the Formidable Side Cañons\" and Beckwith Map 1: \"From the Valley of Green River to the Great Salt Lake.\"
eBook
This idea is brilliant : lost, overlooked, and underappreciated scientific concepts everyone should know
Presents essays responding to a question about what scientific term or concept ought to be more widely known, written by such authors as Jared Diamond, Richard Thaler, Richard Dawkins, Lisa Randall, Steven Pinker, and Carlo Roveri.
BOOK
Validation experiments on bubbling fluidization of Group B glass particles
Results from validation experiments on bubbling fluidization are presented. The tests were performed in three cylindrical columns having internal diameters of 2.5, 4, and 6 inches. The systems were designed to have considerably higher particle counts compared to the commonly used validation experiments found in published literature. Well-characterized glass particles having a Sauter mean diameter of 332 µm were used. The superficial velocity of air at the inlet was specified at five distinct settings in the range of 0.235–0.423 m/s corresponding to 2.97–5.35 Umf, where Umf = 0.079 m/s is the minimum fluidization velocity measured in the 2.5-inch unit. A systematic procedure was followed for each column involving five replicates of the selected inflow conditions in a randomized order. Uncertainty measures are provided for mean and standard deviation of differential pressure, while the statistics of interface height are reported with pixel threshold dependence. Overall, the findings from these experiments are consistent with the previous studies. The datasets generated are critical to assess coarse-grained modeling techniques developed for large-scale applications like Particle-In-Cell or Coarse-Grained Discrete Element Model, as well as elucidating the underlying physics.
Journal Article
The Mysteries of New Orleans
One of the most scandalous books published in America at the time. \"Reizenstein's peculiar vision of New Orleans is worth resurrecting precisely because it crossed the boundaries of acceptable taste in nineteenth-century German America and squatted firmly on the other side . . . This work makes us realize how limited our notions were of what could be conceived by a fertile American imagination in the middle of the nineteenth century.\"—from the Introduction by Steven Rowan A lost classic of America's neglected German-language literary tradition, The Mysteries of New Orleans by Baron Ludwig von Reizenstein first appeared as a serial in the Louisiana Staats-Zeitung, a New Orleans German-language newspaper, between 1854 and 1855. Inspired by the gothic \"urban mysteries\" serialized in France and Germany during this period, Reizenstein crafted a daring occult novel that stages a frontal assault on the ethos of the antebellum South. His plot imagines the coming of a bloody, retributive justice at the hands of Hiram the Freemason—a nightmarish, 200-year-old, proto-Nietzschean superman—for the sin of slavery. Heralded by the birth of a black messiah, the son of a mulatto prostitute and a decadent German aristocrat, this coming revolution is depicted in frankly apocalyptic terms. Yet, Reizenstein was equally concerned with setting and characters, from the mundane to the fantastic. The book is saturated with the atmosphere of nineteenth-century New Orleans, the amorous exploits of its main characters uncannily resembling those of New Orleans' leading citizens. Also of note is the author's progressively matter-of-fact portrait of the lesbian romance between his novel's only sympathetic characters, Claudine and Orleana. This edition marks the first time that The Mysteries of New Orleans has been translated into English and proves that 150 years later, this vast, strange, and important novel remains as compelling as ever.
eBook
A Reduced Order Model for the Design of Oxy-Coal Combustion Systems
Oxy-coal combustion is one of the more promising technologies currently under development for addressing the issues associated with greenhouse gas emissions from coal-fired power plants. Oxy-coal combustion involves combusting the coal fuel in mixtures of pure oxygen and recycled flue gas (RFG) consisting of mainly carbon dioxide (CO2). As a consequence, many researchers and power plant designers have turned to CFD simulations for the study and design of new oxy-coal combustion power plants, as well as refitting existing air-coal combustion facilities to oxy-coal combustion operations. While CFD is a powerful tool that can provide a vast amount of information, the simulations themselves can be quite expensive in terms of computational resources and time investment. As a remedy, a reduced order model (ROM) for oxy-coal combustion has been developed to supplement the CFD simulations. With this model, it is possible to quickly estimate the average outlet temperature of combustion flue gases given a known set of mass flow rates of fuel and oxidant entering the power plant boiler as well as determine the required reactor inlet mass flow rates for a desired outlet temperature. Several cases have been examined with this model. The results compare quite favorably to full CFD simulation results.
Journal Article
The German Press in St. Louis and Missouri in the Nineteenth Century: The Establishment of a Tradition
Rowan examines the significance of the German-language press in the Midwest as a source of historical understanding. In the current monolinguistic culture, it is often forgotten that a significant proportion of the populations in a number of midwestern cities in the nineteenth century spoke German as their chief language.
Journal Article
Analysis and scaling of a two-stage fluidized bed for drying of fine coal particles using Shannon entropy, thermodynamic exergy and statistical methods
Liquid water (moisture) in coal causes a number of economic and environmental issues for the mining and electrical power generation industries. Coal preparation plants utilize large amounts of water for cleaning coal and removing unwanted materials such as clay, sulfur, pyrite and mercury. After the cleaning process, it is necessary to separate as much of the water from the coal as possible. Unfortunately, current dewatering techniques are not effective with particle sizes below 150 µm, which compromises 6–8% of the total energy found in mined coal. In most cases, these fine coal particles end up in slurry waste ponds. Additionally, coal-fired power plants typically purchase coal on a per btu of heating value basis. In many cases, coal can re-absorb moisture during transportation from mine to power plant, and some pulverized coal plants operate with moisture contents as high as 40%. It has been shown previously that a 1% reduction in the moisture content of coal leads to approximately a 0.1% increase in the heating value of coal. To address this issue, two two-stage, variable-area fluidized bed prototypes have been constructed. The first bed is a steam-jacketed warm-air dryer for fine particles (WADFP) with a lower riser stage bed diameter of 5” and an upper riser stage bed diameter of 8”. The second is a half-scale transparent model. One of the primary objectives of this study is to utilize the scale-model fluidized bed to study the unique fluidization characteristics of a large scale fluidized bed consisting of a lower small-diameter riser stage and an upper large-diameter riser stage with secondary air injection. The second objective of this study is to develop a simplified set of scaling relationships that allow for the scaling of fluidization regime transition velocities between different fluidized beds. The final objective of this study is to perform a thermodynamic exergy analysis on the fluidized bed drying process. Preliminary test results show a similar trend of secondary air injection being the controlling factor of fluidization regime determination for both the large scale dryer and the small scale model riser. A proposed scaling method using riser area-normalized mass flow rates resulted in good matching between the two systems. Experiments with fluidizing wet coal also resulted in significant reductions in the moisture content of coal after drying.
Dissertation
