You're using an outdated browser. Please upgrade to a modern browser for the best experience.
Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort by:
Most Viewed Latest Alphabetical (A-Z) Alphabetical (Z-A)
Filter:
All Topic Review Biography Peer Reviewed Entry Video Entry
Topic Review
Copper-Coated Used Fuel Container
The Copper Coated Used Fuel Container is the main containment barrier in the engineered barrier system. The role of copper coated used fuel container is to provide containment for used CANDU (CANada Deuterium Uranium) fuel and any other fuel deemed acceptable for a deep geological repository in accordance with the Nuclear Fuel Waste Act (S.C. 2002, c.23) and Nuclear Waste Management Organization’s waste acceptance criteria.
  • 1.6K
  • 07 Dec 2021
Topic Review
O&M Optimization for Manufacturing Systems with Energy Management
Operation and Maintenance (O&M) refers to activities related to daily operations and maintenance needed to preserve an asset so that it continues to provide services and maintain functioning. With the increasing attention paid to sustainable development worldwide, improving energy efficiency and applying effective means of energy saving have gradually received worldwide attention. As the largest energy consumers, manufacturing industries are inevitably facing pressures on energy optimization evolution from both governments and competitors. Among these enterprise activities, O&M of manufacturing systems are considered to have the most prospects for energy optimization. To address these issues, the existing O&M optimization approaches with energy management are reviewed and divided into several operation levels: single-machine, production-line, factory, and supply-chain levels. Recent research trends in O&M optimization with energy-management considerations in manufacturing systems are also discussed.
  • 1.6K
  • 18 Oct 2022
Topic Review
Microinjection Moulding of Polymeric Micro Devices
Microinjection moulding has been widely used to mass-produce miniature polymeric devices and/or surface micro/nano structures, such as microneedles for drug delivery and microfluidic devices for diagnostics. The base of a microneedle patch is usually a millimetre with a single needle of several hundred micrometres in size, while the tip radius is smaller than 5 µm; such examples also include micro gears, micro-optical connectors, and micro liquid dispensers. These products have an overall weight of the patch of several milligrams or below. The other typical polymeric micro products would be micro/nano scale features on a large substrate, e.g., microfluidic chips. Microfluidic chips usually have tens to hundreds of micron channels for liquid manipulation. Such micro parts and micro/nano scale features are characterised by their very small dimensions and high surface-to-volume ratios.
  • 1.6K
  • 20 Oct 2022
Topic Review
Maintenance Management Systems Integration with Industry 4.0 Technologies
Industry 4.0 is the latest technological age, in which recent technological developments are being integrated within industrial systems. Consequently, maintenance management of current industrial manufacturing systems is affected by the emergence of the technologies and features of Industry 4.0 which need to be integrated efficiently. 
  • 1.6K
  • 11 Aug 2023
Topic Review
Expanding Poly(lactic acid) (PLA) and Polyhydroxyalkanoates (PHAs) Applications
Some of the vital limitations to the broader use of these biopolymers are that they are less flexible and have less impact resistance when compared to petroleum-based plastics (e.g., polypropylene (PP), high-density polyethylene (HDPE) and polystyrene (PS)). Recent advances have shown that with appropriate modification methods—plasticizers and fillers, polymer blends and nanocomposites, such limitations of both polymers can be overcome. This work is meant to widen the applicability of both polymers by reviewing the available materials on these methods and their impacts with a focus on the mechanical properties. 
  • 1.6K
  • 17 Dec 2021
Topic Review
Natural Esters Additives to Improve the Properties
Regardless of their environmental and technical merits, natural esters have some limitations that are slowing down their total acceptance by transformer owners and utilities. Critical limitations and concerns include esters’ pour point, viscosity, oxidative stability, and ionization resistance.
  • 1.6K
  • 04 Jan 2023
Topic Review
Applications of Texturing in Injection Molding
Texturing is an engineering technology that can be used to enable surface functionalization in the plastics injection molding industry. A texture is defined as the geometrical modification of the topography by addition of surface features that are characterized by a smaller scale than the overall surface dimensions. Texturing is added to products to create novel functionalities of plastic products and tools, which can be exploited to modify interactions with other materials in contact with the surface.
  • 1.5K
  • 24 Aug 2022
Topic Review
Artificial Intelligence in Nondestructive Evaluation
Nondestructive evaluation (NDE) techniques are used in many industries to evaluate the properties of components and inspect for flaws and anomalies in structures without altering the part’s integrity or causing damage to the component being tested. This includes monitoring materials’ condition (Material State Awareness (MSA)) and health of structures (Structural Health Monitoring (SHM)). NDE techniques are highly valuable tools to help prevent potential losses and hazards arising from the failure of a component while saving time and cost by not compromising its future usage. On the other hand, Artificial Intelligence (AI) and Machine Learning (ML) techniques are useful tools which can help automating data collection and analyses, providing new insights, and potentially improving detection performance in a quick and low effort manner with great cost savings. 
  • 1.5K
  • 01 Jul 2022
Topic Review
3D Printed and Conventional Membranes
Additive manufacturing, also called 3D printing (3DP), is considered to be a possible approach to produce custom membranes with more manufacturing control than any other method of membrane manufacturing available today. Polymer membranes are central to the proper operation of several processes used in a wide range of applications. The production of these membranes relies on processes such as phase inversion, stretching, track etching, sintering, or electrospinning. Results show that very few membrane materials are used as 3D-printed membranes. Such membranes showed acceptable performance, better structures, and less environmental impact compared with those of conventional membranes.
  • 1.5K
  • 18 Mar 2022
Topic Review
Influence of 3D Printing Parameters on FFF Prints
The advancement in 3D printing techniques has raised the hope to use additively manufactured parts as final products in various industries. Due to the layer-by-layer nature of AM parts, they are highly susceptible to failure when they are subjected to fatigue loading. This entry provides a detailed account of the influence of 3D printing parameters on the fatigue properties of parts manufactured by fused filament fabrication (FFF). Existing standards for fatigue testing of polymers and their limitation for 3D-printed parts are discussed. In addition, the cyclic behaviour of polymers is reviewed, and the impact of 3D printing parameters on the mechanical behaviour of FFF parts under tensile, compressive, flexural, and bending fatigue is investigated according to the published results in the literature. Finally, a summary of the works undertaken and suggestions for future research are provided. The influence of 3D printing parameters on the fatigue performance of prints can be different from that seen in the case of static loading and strongly depends on the fatigue loading type. While cross-over infill patterns, higher infill density, and higher layer height favour achieving higher fatigue strength in all loading types, raster orientation is best to be aligned parallel to the tensile loads and perpendicular to the compressive, flexural, and bending forces. In the case of tensile and flexural loading, Y build orientation yields the best result. Finally, print velocity was found to be less significant compared to other parameters, implying that it can be set at high values for faster printing.
  • 1.5K
  • 10 Feb 2023
Topic Review
Properties of Wire Arc-Sprayed Fe-Based Coatings
Among different thermal spraying methods, arc-spraying has been widely used due to its low operating costs and high deposition efficiency. The rapid progress of cored wire technology in arc-spraying has increased possibilities for the preparation of new Fe-based coating materials with enhanced properties by adding reinforcement particles and alloying elements to suit the different applications. 
  • 1.5K
  • 09 Mar 2022
Topic Review
CAD/CAM in dentistry
CAD/CAM stands for computer-aided design and computer-aided manufacturing. It is applied in different branches of engineering, science or even art as a rapid prototyping method for accelerating the design process and smoothening its transition into manufacturing.
  • 1.5K
  • 12 Apr 2021
Topic Review
Manufacturing for Orthotic and Prosthetic Devices
The conventional manufacturing methods for fabricating orthotic and prosthetic (O&P) devices have been in practice for a very long time. O&P service providers have started exploring different advanced manufacturing techniques. 
  • 1.5K
  • 29 Mar 2023
Topic Review
Smart Manufacturing and Industry 4.0
Industry 4.0 is an advanced strategy introduced by the German government to promote the integration of diverse technologies that make manufacturing process smarter. For instance, the technologies such as the Internet of Things (IoT), Internet of Service (IoS), social product development, Enterprise Resource Planning (ERP), and radio frequency identification (RFID) have been widely implemented to achieve smarter production system. The combination of this technology will foster mass customization, inexpensive product planning, accurate control of the manufacturing process, condition base maintenance, as well as the automated manufacturing process.These technological trends are designed to facilitate machine to machine (M2M) communication using minimal to null dependence on human force. Industry 4.0 transform processes, operations, machinery, supply chain management, and the entire energy footprint of manufacturing enterprises. It also enhances and monitors the after-purchase performance such as maintenance and servicing. At the global front, manufacturing enterprises are already exploring the limitless possibilities of Industry 4.0 and are reimagining the future. The traditional manufacturing processes and machinery are undergoing digitization and technological transformation to accelerate efficiency, flexibility, and speed to survive the fierce market competition.
  • 1.5K
  • 16 Sep 2021
Topic Review
Cold Spray Additive Manufacturing
Cold Spray Additive Manufacturing (CSAM) produces freeform parts by accelerating powder particles at a supersonic speed which, impacting against a substrate material, trigger a process to consolidate the CSAM part by bonding mechanisms. Cold Spray (CS) is a thermal spray process designed for coatings that has extended its use to produce freeform parts. The definition of Additive Manufacturing (AM) given by ISO/ASTM 52900:2015 standard is the “process of joining materials to make parts from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing and formative manufacturing methodologies”.
  • 1.5K
  • 17 Feb 2023
Topic Review
Environmental Concepts in Additive Manufacturing
Additive manufacturing (AM) is a technological advancement that produces three-dimensional objects by layering polymers, ceramics, metals, composite materials, concrete, and human tissue materials in precise geometric shapes. When this new manufacturing technology is employed, it aims to create a healthy environment free of pollutants. Using additive manufacturing over traditional subtractive technologies may result in considerable material and energy resource savings, especially if the component is appropriately designed for manufacture.
  • 1.5K
  • 29 Jan 2023
Topic Review
Data-Driven Production Logistics
A data-driven approach in production logistics is adopted as a response to challenges such as low visibility and system rigidity. within data-driven production logistics, data is the backbone of the system and all the components are bound together with data. Any decision is made based on data rather than intuition or even experience. All production logistics related activities are supported by data, which is constantly collected from data sources such as machines, human resources, sensors, actuators, etc. A data-driven approach facilitates transition towards a smart, autonomous production logistics system.
  • 1.4K
  • 28 Apr 2021
Topic Review
Laser Polishing in Additively Manufactured Metals Post Processing
The poor surface roughness associated with additively manufactured parts can influence the surface integrity and geometric tolerances of produced components. In response to this issue, laser polishing (LP) has emerged as a potential technique for improving the surface finish and producing parts with enhanced properties. Many studies have been conducted to investigate the effect of LP on parts produced using additive manufacturing. The results showed that applying such a unique treatment can significantly enhance the overall performance of the part. In LP processes, the surface of the part is re-melted by the laser, resulting in smaller peaks and shallower valleys, which enable the development of smoother surfaces with the help of gravity and surface tension. Precise selection of laser parameters is essential to achieve optimal enhancement in the surface finish, microstructure, and mechanical properties of the treated parts.
  • 1.4K
  • 25 Jun 2023
Topic Review
Residual Stress Measurement Techniques for Railway Components
Manufacturing and maintenance procedures in the railway industry regularly implement welding and metal deposition operations to produce joints, coatings and repair structures. During these processes, residual stresses arise through the generation of heat affected zones and plastic deformation. This makes accurate measurements of the internal stresses a critical aspect of manufacturing, monitoring, repair and model validation in the develop new metallic coating and joining technologies. Selection of an appropriate residual stress measurement method has many important factors including component size, resolution and the magnitude and location of internal stresses, often resulting in a combination of techniques required to obtain complete assessment of the stress state. 
  • 1.4K
  • 13 Jan 2023
Topic Review
Crucial Technologies of Digital Thread Implementation
The digital thread is identified as an integrated information flow using recognized authoritative data sources (e.g., requirements, system architecture, technical data packages (TDP), 3D CAD models) connecting all stages of the product lifecycle. The objective of the digital thread is to establish an integrated framework that consolidates all stages of the product lifecycle and systems, facilitating efficient and effective lifecycle measurements and supporting a data-driven approach.
  • 1.4K
  • 11 Mar 2024
  • Page
  • of
  • 15
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of COVID-19
Encyclopedia of Engineering
Encyclopedia of Social Sciences
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Academic Video Service
Feedback