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Discrete time analysis of batch processes in material flow systems

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Book Series: Wissenschaftliche Berichte des Institutes für Fördertechnik und Logistiksysteme der Universität Karlsruhe (TH) ISSN: 01712772 ISBN: 9783866441675 Year: Volume: 70 Pages: XIV, 137 p. DOI: 10.5445/KSP/1000006694 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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Scope of this work is the development of appropriate models for the evaluation of batch processes in material flow systems. The presented analytical methods support the long range planning in an early planning stage, in which capacities are determined to minimize the facility costs under the condition of cycle time targets.

A Decentralized Control Strategy for High Density Material Flow Systems with Automated Guided Vehicles

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Book Series: Wissenschaftliche Berichte des Instituts für Fördertechnik und Logistiksysteme des Karlsruher Instituts für Technologie ISSN: 01712772 ISBN: 9783731503897 Year: Volume: 85 Pages: X, 160p. DOI: 10.5445/KSP/1000047227 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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This work presents a universal decentralized control strategy for grid-based high-density material flow systems with automated guided vehicles and gives insights into the system behavior as well as the solution quality.

Friction Stir Welding and Processing in Alloy Manufacturing

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ISBN: 9783039212071 / 9783039212088 Year: Pages: 142 DOI: 10.3390/books978-3-03921-208-8 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Analytical Chemistry
Added to DOAB on : 2019-12-09 11:49:15
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Friction stir welding (FSW) is considered to be the most significant development in metal joining in decades and, in addition, is a ""green"" technology due to its energy efficiency, environmental friendliness, and versatility. This process offers a number of advantages over conventional joining processes. Furthermore, because welding occurs via the deformation of material at temperatures below the melting temperature, many problems commonly associated with joining of dissimilar alloys can be avoided, and thus, high-quality welds are produced. Due to this fact, FSW has been widely used in different industrial applications where metallurgical characteristics should be retained, such as in the aeronautic, naval, and automotive industries.

Modelling and Analysis of Sustainability Related Issues in New Era

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ISBN: 9783039210244 / 9783039210251 Year: Pages: 350 DOI: 10.3390/books978-3-03921-025-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Economics
Added to DOAB on : 2019-06-26 08:44:06
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The purpose of this Special Issue is to investigate topics related to sustainability issues in the new era, especially in Industry 4.0 or other new manufacturing environments. Under Industry 4.0, there have been great changes with respect to production processes, production planning and control, quality assurance, internal control, cost determination, and other management issues. Moreover, it is expected that Industry 4.0 can create positive sustainability impacts along the whole value chain. There are three pillars of sustainability, including environmental sustainability, economic sustainability, and social sustainability. This Special Issue collects 15 sustainability-related papers from various industries that use various methods or models, such as mathematical programming, activity-based costing (ABC), material flow cost accounting, fuel consumption model, artificial intelligence (AI)-based fusion model, multi-attribute decision model (MADM), and so on. These papers are related to carbon emissions, carbon tax, Industry 4.0, economic sustainability, corporate social responsibility (CSR), etc. The research objects come from China, Taiwan, Thailand, Oman, Cyprus, Germany, Austria, and Portugal. Although the research presented in this Special Issue is not exhaustive, this Special Issue provides abundant, significant research related to environmental, economic, and social sustainability. Nevertheless, there still are many research topics that require our attention to solve problems of sustainability.

Keywords

carbon tax policy --- return policy --- carbon reduction --- e-commerce platform --- carbon emissions --- cap & trade --- green production --- footwear industry --- activity-based costing (ABC) --- activity-based costing (ABC) --- industry 4.0 --- integrated mathematical programming --- product-mix decision --- theory of constraints (TOC) --- carbon tax --- small and medium enterprises --- OEE --- OECD --- manufacturing sustainability --- time study --- Industry 4.0 --- material handling systems --- agent-based control architecture --- Activity-Based Costing (ABC) --- Industry 4.0 --- tire industry --- carbon emission --- carbon tax --- mathematical programming --- sustainability --- sustainability performance --- corporate social responsibility (CSR) --- internal control --- multi-attribute decision model (MADM) --- decision making trial and evaluation laboratory (DEMATEL) --- DANP (DEMATEL based ANP) --- VIKOR --- fuel consumption --- sustainability --- active suspension --- PID controller --- white noise --- colored noise --- long- and short-term --- greenhouse gas --- LS-ARIMAXi-ECM model --- sustainability --- economic growth --- exogenous variables --- CO2 emissions --- family business --- succession plan --- corporate characteristics --- family capital --- niche inheritance --- multi-attribute decision model (MADM) --- social sustainability --- artificial intelligence --- corporate social responsibility --- decision making --- firm value --- Activity-Based Costing (ABC) --- Industry 4.0 --- aluminum-alloy wheel industry --- mathematical programming --- Activity-Based Standard Costing (ABSC) --- Manufacturing Execution System (MES) --- Activity-Based Costing (ABC) --- Enterprise Resource Planning (ERP) --- Industry 4.0 --- industrial internet of things --- digital transformation --- digital platforms --- qualitative-empirical study --- small and medium-sized enterprises --- sustainable development --- energy efficiency --- electrical appliances --- life cycle cost analysis (LCCA) --- multi-attribute value theory (MAVT) --- multi-objective optimization --- NSGAII --- sustainability --- ISO14051 --- material flow cost accounting --- n/a

Ironmaking and Steelmaking

Authors: ---
ISBN: 9783039213290 / 9783039213306 Year: Pages: 464 DOI: 10.3390/books978-3-03921-330-6 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2019-12-09 16:10:12
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Steel is a critical material in our societies and will remain an important one for a long time into the future. In the last two decades, the world steel industry has gone through drastic changes and this is predicted to continue in the future. The Asian countries (e.g. China, India) have been dominant in the production of steel creating global over-capacity, while the steel industry in the developed countries have made tremendous efforts to reinforce its global leadership in process technology and product development, and remain sustainable and competitive. The global steel industry is also facing various grand challenges in strict environmental regulation, new energy and materials sources, and ever-increasing customer requirements for high quality steel products, which has been addressed accordingly by the global iron and steel community. This Special Issue, “Ironmaking and Steelmaking”, released by the journal Metals, published 33 high quality articles from the international iron and steel community, covering the state-of-the-art of the ironmaking and steelmaking processes. This includes fundamental understanding, experimental investigation, pilot plant trials, industrial applications and big data utilization in the improvement and optimization of existing processes, and research and development in transformative technologies. It is hoped that the creation of this special issue as a scientific platform will help drive the iron and steel community to build a sustainable steel industry.

Keywords

ironmaking --- microwaves --- carbothermal reduction --- iron oxides --- emission spectrum --- ore-carbon briquette --- CO–CO2 atmosphere --- simulation --- re-oxidation --- reduction --- electroslag cladding --- high speed steel --- ductile cast iron --- composite roll --- bonding interface --- high-phosphorus iron ore --- fluorapatite --- carbothermal reduction --- vaporization dephosphorization --- iron ore pellets --- compressive strength (CS) --- prediction model --- artificial neural network --- principal component analysis --- crystallization behaviors --- crystallization rate --- anosovite crystals --- silicate crystals --- titanium slag --- blast furnace --- copper stave --- hydrogen attack --- slag crust --- heat-affected zone --- high heat input welding --- Ca deoxidation --- inclusion control --- intragranular acicular ferrite --- concentrate --- iron ore --- agglomerate --- structure --- phase analysis --- Mg deoxidation --- inclusions --- Al addition --- high-heat-input welding --- heat-affected zone --- toughness --- shot peening --- Barkhausen noise --- crystallite size --- carbon composite pellet --- direct reduction --- shrinkage --- kinetics --- rotary hearth furnace --- hydrogen plasma --- smelting reduction --- HPSR --- iron oxide --- plasma arc --- ionization degree --- sulfur distribution ratio --- liquid area --- carbon-saturated iron --- phosphate capacity --- sulfide capacity --- phosphorus distribution ratio --- sulfur distribution ratio --- evaluation of coupling relationship --- secondary refining process, CaO–based slags --- iron sulfate --- TG analysis --- thermal treatment --- iron oxide --- kinetics --- activation energy --- high-aluminum iron ore --- synergistic reduction --- high-manganese iron ore --- hercynite --- fayalite --- flow velocity --- casting speed --- gas flow rate --- flow pattern --- continuous casting --- Cr recovery --- self-reduction briquette --- reaction mechanism --- mold flux --- low fluorine --- internal crack --- surface roughness --- slag film --- vanadium titano-magnetite --- gas-based reduction --- carbon monoxide --- hydrogen --- and nitrogen --- kinetics --- pellet size --- liquid steel --- non-contact measurement --- oxides --- steel-making --- blast furnace --- solid flow --- cold experiment --- direct element method --- Wilcox–Swailes coefficient --- viscosity --- BaO --- CaO/Al2O3 ratio --- modified NPL model --- ultrafine particles exposure --- steelmaking factory --- chemical composition --- devolatilization --- torrefied biomass --- bio-coal --- volatile matter --- iso-conversional method --- Al-TRIP steel --- surface depression --- cracks --- non-metallic inclusion --- mold flux --- reactivity --- hot metal pre-treatment --- desiliconisation --- dephosphorisation --- solid and gaseous oxygen --- fork --- flat steel --- inclusions --- 33MnCrTiB --- slag --- carbon dioxide --- injection --- blast furnace --- converter --- combustion --- oxygen steelmaking --- refining kinetics --- slag formation --- penetration theory --- oxygen blast furnace --- COREX --- static process model --- integrated steel plant --- material flow --- energy consumption --- CO2 emissions --- oil-pipeline steel --- Ca-treatment --- non-metallic inclusions --- electrolytic extraction --- corrosion --- n/a

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