402 research outputs found
PhD students´day FMST 2023
The authors gave oral presentations of their work online as part of a Doctoral Students’ Day held on 15 June 2023, and they reflect the challenging work done by the students and their supervisors in the fields of metallurgy, materials engineering and management. There are 82 contributions in total, covering a range of areas – metallurgical technology, thermal engineering and fuels in industry, chemical metallurgy, nanotechnology, materials science and engineering, and industrial systems management. This represents a cross-section of the diverse topics investigated by doctoral students at the faculty, and it will provide a guide for Master’s graduates in these or similar disciplines who are interested in pursuing their scientific careers further, whether they are from the faculty here in Ostrava or engineering faculties elsewhere in the Czech Republic. The quality of the contributions varies: some are of average quality, but many reach a standard comparable with research articles published in established journals focusing on disciplines of materials technology. The diversity of topics, and in some cases the excellence of the contributions, with logical structure and clearly formulated conclusions, reflect the high standard of the doctoral programme at the faculty.Ostrav
Citizens in Camouflage: the Production of the Means of Violence in the Everyday
This thesis is motivated by ordinary objects that are produced for violence, and the extra-ordinary story of a farmer turned gallows-exporter, and asks in what ways do civilians participate and contribute to the production of the means of violence? This question is embedded in a broader social context in which state-sanctioned violence and its production typically is attributed to distinct militarised agents, whereas civilians are seen to not take part in any of these dynamics and thus hold no agency in the production of it.
Recent scholarship on militarisation has called into question the assumption of a peaceful and non-violent civilian sphere that is encroached upon by military agents and raised the question of how to transcend the civil/military dichotomy. In building on these, I argue that we need to take agency seriously and scrutinise how different spheres are established. I draw on Marxist and Feminist thought that takes the agency of the civil seriously, and empirically explore what work the civil is doing, through a multi-sited ethnographic approach. Taking the objects produced for collective violence and their design as a starting point, I follow them to the people who promote, design, produce, and contest their existence. I argue that the production of the means of violence takes place beyond a narrow security and defence sphere and set out to empirically explore this sphere. In so doing I trace what work the civil is doing in a literal sense, as well as how this work is rendered invisible. I am highlighting the civil as a force in the production of the means of violence and trace how it depoliticises its own contribution. The civil is thus integral to the integration of violence into broader logics of capitalism
Proceedings of FORM 2022. Construction The Formation of Living Environment
This study examines the integration of building information modelling (BIM) technologies in operation & maintenance stage in the system of managing real estate that helps to reduce transaction costs. The approach and method are based on Digital Twin technology and Model Based System Engineering (MBSE) approach.
The results of the development of a service for digital facility management and
digital expertise are presented. The connection between physical and digital objects is conceptualized
Технології виробництва заготовок литтям
У навчальному посібнику «Технології виробництва заготовок литтям» розглянуто еволюцію ливарного виробництва, сучасні методи одержання литих заготовок, класифікацію способів виробництва заготовок литтям, їх переваги та недоліки.
Подано фундаментальні основи сучасного виробництва литих заготовок, раціональні варіанти їх виготовлення; обладнання, інструменти та технологічне оснащення для різних технологічних режимів і умов. Для перевірки отриманих знань запропоновано тестові завдання з кожного розділу посібника.
Начальний посібник рекомендовано для здобувачів вищої освіти галузі знань 13 «Механічна інженерія», а також для інженерно-технічних працівників ливарної промисловостіThe manual «Technologies of Workpieces Manufacturing by Castings» provides knowledge regarding different foundry processes and their industrial importance. It is considered the modern techniques of processing raw materials by casting as an important stage of solving the tasks of designing technological processes for manufacturing the parts.
The manual includes fundamentals of metal casting, the evolution of the foundry industry, basic casting techniques, the metal casting operations, methods of manufacturing the cast blanks; the most rational variants of their manufacturing; equipment, tools and machining attachments for making workpieces of machine elements and parts in different process specifications and conditions. Also focused on efficient design of casting runner, riser and gating system with minimal casting defects and solidification process. Multiple choice questions from each section of the manual are offered to test the acquired knowledge. Recommended for higher education seekers in 13 «Mechanical Engineering» majors, and can also be useful for engineering and technical specialists of foundry technologies in the mechanical engineering industryINTRODUCTION...7 1. EVOLUTION OF THE METAL CASTING INDUSTRY...8 Multiple Choice Questions...18 2. METAL CASTING AS A MANUFACTURING PROCESS...22 Multiple Choice Questions...33 3. METALS AND ALLOYS USED IN METAL CASTING...38 Multiple Choice Questions...54 4. CLASSIFICATION OF METAL CASTING PROCESSES...58 Multiple Choice Questions...62 5. FUNDAMENTALS OF METAL CASTING
5.1. Metal casting basics...64
5.2. Metal casting operations...73
5.3. Gases in metal casting...80
5.4. Metal casting design...82 Multiple Choice Questions...90
6. EXPENDABLE MOLD CASTING
6.1. Sand casting...129
6.2. Plaster mold casting...140
6.3. Ceramic mold casting...143
6.4. Shell molding...146
6.5. Vacuum casting...152
6.6. Expanded polystyrene casting...158
6.7. Investment casting Multiple ...162 Choice Questions...169
7. PERMANENT MOLD CASTING
7.1. Basic permanent mold casting...204
7.2. Vacuum permanent mold casting...213
7.3. Slush casting...216
7.4. Die casting...223
7.4.1. Hot chamber die casting...233
7.4.2. Cold chamber die casting...240
7.5. Pressure die casting...248
7.5.1. Low pressure die casting...253
7.5.2. High pressure die casting...260
7.5.3. Gravity die casting...270
7.6. Centrifugal casting...276
7.6.1. True centrifugal casting...283
7.6.2. Semi-centrifugal casting...288
7.6.3. Centrifuge casting...294
7.7. Squeeze casting...299
7.8. Continuous casting...307 7.9. Evaporative pattern casting...314
7.9.1. Lost foam casting...325
7.9.2. Full mold casting...331
7.10. Stir casting...337
7.11. Ingot casting manufacture...341 Multiple Choice Questions...346
8. CASTING DEFECTS
8.1. Casting microstructure...411
8.2. Casting defects and remedies... Multiple Choice Questions...427
9. COMPUTER SYSTEMS FOR CASTING PROCESSES SIMULATION...433
GLOSSARY...446
REFERENCES...48
Images on the Move
In contemporary society, digital images have become increasingly mobile. They are networked, shared on social media, and circulated across small and portable screens. Accordingly, the discourses of spreadability and circulation have come to supersede the focus on production, indexicality, and manipulability, which had dominated early conceptions of digital photography and film. However, the mobility of images is neither technologically nor conceptually limited to the realm of the digital. The edited volume re-examines the historical, aesthetical, and theoretical relevance of image mobility. The contributors provide a materialist account of images on the move - ranging from wired photography to postcards to streaming media
Amherst in the World
In celebration of the 200th anniversary of Amherst College, a group of scholars and alumni explore the school’s substantial past in this volume. Amherst in the World tells the story of how an institution that was founded to train Protestant ministers began educating new generations of industrialists, bankers, and political leaders with the decline in missionary ambitions after the Civil War. The contributors trace how what was a largely white school throughout the interwar years begins diversifying its student demographics after World War II and the War in Vietnam. The histories told here illuminate how Amherst has contended with slavery, wars, religion, coeducation, science, curriculum, town and gown relations, governance, and funding during its two centuries of existence. Through Amherst’s engagement with educational improvement in light of these historical undulations, it continually affirms both the vitality and the utility of a liberal arts education
Coraline
Coraline (Henry Selick, 2009) is stop-motion studio LAIKA's feature-length debut based on the popular children's novel by British author Neil Gaiman. Heralding a revival in global interest in stop-motion animation, the film is both an international cultural phenomenon and a breakthrough moment in the technological evolution of the craft. This open access collection brings together an international group of practitioners and scholars to examine Coraline’s place in animation history and culture, dissect its politics, and unpack its role in the technological and aesthetic development of its medium. More broadly, it celebrates stop motion as a unique and enduring artform while embracing its capacity to evolve in response to cultural, political, and technological changes, as well as shifting critical and audience demands. Divided into three sections, this volume’s chapters situate Coraline within an interconnected network of historical, industrial, discursive, theoretical, and cultural contexts. They place the film in conversation with the medium’s aesthetic and technological history, broader global intellectual and political traditions, and questions of animation reception and spectatorship. In doing so, they invite recognition – and appreciation – of the fact that Coraline occupies many liminal spaces at once. It straddles the boundary between children’s entertainment and traditional ‘adult’ genres, such as horror and thriller. It complicates a seemingly straight(forward) depiction of normative family life with gestures of queer resistance. Finally, it marks a pivotal point in stop-motion animation’s digital turn. Following the film’s recent tenth anniversary, the time is right to revisit its production history, evaluate its cultural and industry impact, and celebrate its legacy as contemporary stop-motion cinema’s gifted child. As the first book-length academic study of this contemporary animation classic, this volume serves as an authoritative introduction and a primary reference on the film for scholars, students, practitioners, and animation fans. The ebook editions of this book are available open access under a CC BY-NC-ND 4.0 licence on bloomsburycollections.com
Advanced Therapy Medicinal Products for Eye Diseases: Goals and Challenges
The concept of advanced therapy medicinal products (ATMPs) encompasses novel kinds of medicines for human use that are based on genes, cells or tissues. These intend to offer not only regeneration, but complete functional recovery of diseased tissues and organs using different strategies. Gene therapy, cell therapy and tissue engineering are the main areas in which promising advanced therapies are emerging. The eye is a very complex organ whose main structures, the cornea and the retina, play a pivotal role in maintaining normal vision, as severe alterations in these tissues can lead to blindness. Ocular tissues are starting to benefit from ATMPs by fighting against the enormous complexity and devastating potential of many ocular diseases. However, developments arising from this field of work face important challenges related to vectors to deliver drugs and genetic material to target tissues, suitable biomaterials to prepare cell scaffolds and cell stemness, among others—not to mention the complicated legislation around ATMPs, the complexity in production and quality control and the absence of standardized protocols.The purpose of this Special Issue is to serve as an overview of the current progress in the application of cell and gene therapies, as well as tissue engineering to restore functionality in diseased ocular structures, and the challenges linked to reaching patients
The Papers of Thomas A. Edison
This richly illustrated volume explores Edison's inventive and personal pursuits from 1888 to 1889, documenting his responses to technological, organizational, and economic challenges.Thomas A. Edison was received at the 1889 Paris Exposition Universelle—the World's Fair—as a conquering hero. Extravagantly fêted and besieged by well-wishers, he was seen, like Gustave Eiffel's iron tower, as a triumphal symbol of republicanism and material progress. The visit was a high-water mark of his international fame.Out of the limelight, Edison worked as hard as ever. On top of his work as an inventor, entrepreneur, and manufacturer, he created a new role as a director of research. At his peerless laboratory in Orange, New Jersey, he directed assistants working in parallel on multiple projects. These included the "perfected" phonograph; a major but little-recognized effort to make musical recordings for sale; the start of work on motion pictures; and improvements in the recovery of low-grade iron ore. He also pursued a public "War of the Currents" against electrical rival George Westinghouse. Keenly attuned to manufacturing as a way to support the laboratory financially and control his most iconic products, Edison created a new cluster of factories. He kept his manufacturing rights to the phonograph while selling the underlying patents to an outside investor in a deal he would regret. When market pressures led to the consolidation of Edison lighting interests, he sold his factories to the new Edison General Electric Company. These changes disrupted his longtime personal and professional relations even as he planned an iron-mining project that would take him to the New Jersey wilderness for long periods.The ninth volume of the series, Competing Interests explores Edison's inventive and personal pursuits from 1888 to 1889, documenting his responses to technological, organizational, and economic challenges. The book includes 331 documents and hundreds of Edison's drawings, which are all revealing and representative of his life and work in these years. Essays and notes based on meticulous research in a wide range of sources, many only recently available, provide a rich context for the documents
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