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Topic Review
Biography
Topic Review
Vision-Based Defect Inspection for Sewer Pipes
Underground sewerage systems (USSs) are a vital part of public infrastructure that contributes to collecting wastewater or stormwater from various sources and conveying it to storage tanks or sewer treatment facilities. A healthy USS with proper functionality can effectively prevent urban waterlogging and play a positive role in the sustainable development of water resources. Since it was first introduced in the 1960s, computer vision (CV) has become a mature technology that is used to realize promising automation for sewer inspections.
996
28 Apr 2022
Topic Review
Liquid Cooling and Ventilation Garment
A Liquid Cooling Garment (LCG) is a form-fitting garment that is used to remove body heat from the wearer in environments where evaporative cooling from sweating and open-air convection cooling does not work, or the wearer has a biological problem that hinders self-regulation of body temperature. A Liquid Cooling and Ventilation Garment (LCVG) has additional crush-resistant ventilation ducts, which draw moist air from the wearer's extremities, keeping the wearer dry. In a fully enclosing suit where exhaled breathing air can enter the suit, the exhaled air is moist and can lead to an uncomfortable feeling of dampness or wetness. While this technology is most commonly associated with space suits, it is also used in a wide range of Earth-bound applications where open-air cooling is difficult or impossible to achieve, such as fire fighting, working in a steel mill and increasingly by surgeons during long or strenuous procedures.
996
08 Oct 2022
Topic Review
Injection Molding of Long Glass Fiber-Reinforced Phenolic Resins
Glass fiber-reinforced phenolic resins are well suited to substitute aluminum die-cast materials. They meet the high thermomechanical and chemical demands that are typically found in combustion engine and electric drive train applications. An injection molding process development for further improving their mechanical properties by increasing the glass fiber length in the molded part was conducted. A novel screw mixing element was developed to improve the homogenization of the long fibers in the phenolic resin. The process operation with the mixing element is a balance between the desired mixing action, an undesired preliminary curing of the phenolic resin, and the reduction of the fiber length.
996
15 Aug 2022
Topic Review
Light-Field Camera
A light field camera, also known as plenoptic camera, captures information about the light field emanating from a scene; that is, the intensity of light in a scene, and also the direction that the light rays are traveling in space. This contrasts with a conventional camera, which records only light intensity. One type of light field camera uses an array of micro-lenses placed in front of an otherwise conventional image sensor to sense intensity, color, and directional information. Multi-camera arrays are another type of light field camera. Holograms are a type of film-based light field image.
995
26 Oct 2022
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.
995
18 Oct 2022
Topic Review
Battery Thermal Management Systems
In the current context of transition from the powertrains of cars equipped with internal combustion engines to powertrains based on electricity, there is a need to intensify studies and research related to the command-and-control systems of electric vehicles. One of the important systems in the construction of an electric vehicle is the thermal management system of the battery with the role of optimizing the operation of the battery in terms of performance and life.
995
28 Sep 2021
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.
994
18 Mar 2022
Topic Review
Sustainable Use of RAP Materials for Pavement Construction
RAP is suitable for re-construction or re-surfacing roads. RAP contains well-graded fine aggregates covered with asphalt cement and must be properly crushed and categorised. The four most frequently used processes for recycling RAP conserve natural resources and make pavement construction sustainable.
994
24 Jun 2022
Topic Review
Fiat G.50
The Fiat G.50 Freccia ("Arrow") was a World War II Italian fighter aircraft developed and manufactured by aviation company Fiat. Upon entering service, the type became Italy’s first single-seat, all-metal monoplane that had an enclosed cockpit and retractable undercarriage. On 26 February 1937, the G.50 conducted its maiden flight. During early 1938, the Freccias served in the Regia Aeronautica (the Italian Air Force) and with its expeditionary arm, the Aviazione Legionaria, in Spain, where they proved to be relatively fast and very manoeuvrable in comparison to its adversaries in the theatre. Early in the Second World War, it was determined that the G.50 possessed inadequate armament, comprising a pair of Breda-SAFAT 12.7-mm machine guns. The fighter was extensively used on various fronts by Italy, including in Northern Europe, North Africa, the Balkans, and the Italian mainland. The G.50 commonly came up against the British Hawker Hurricane, which was fast enough to frequently outrun and out-range the Italian opponent. Later models of the fighter had improvements, including a substantial increase in range. The G.50 was exported to several overseas customers, small numbers being flown by the Air Force of the Independent State of Croatia while 35 G.50 fighters were shipped to Finland , where they served with distinction during both the Winter War of 1940 and the Continuation War of 1941–1944 against the Soviet Union. In Finnish service, the type reportedly achieved an unprecedented kill/loss ratio of 33/1.
993
08 Nov 2022
Topic Review
Fibrous Concretes Produced by Using Wollastonite
Production of cement and aggregate used in cement-based composites causes many environmental and energy problems. Decreasing the usage of cement and aggregate is a crucial and currently relevant challenge to provide sustainability. Inert materials can also be used instead of cement and aggregates, similar to pozzolanic materials, and they have positive effects on cement-based composites. One of the inert materials used in cement-based composites is wollastonite (calcium metasilicate-CaSiO3), which has been investigated and attracted attention of many researchers.
993
19 Oct 2022
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