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Topic Review
Biography
Topic Review
Advantages and Disadvantages of Hydrogen Trains
Hydrogen and electric drives used in various means of transport is a leading topic in many respects.
1.5K
07 Oct 2023
Topic Review
Utilization of Product Usage Information in Product Development
As emerging technologies such as IoT technologies become widespread, producers can collect large-scale product usage information (PUI) from different stakeholders, including retailers, customers, users, and the providers of product-related services such as maintenance, renting, and leasing. Its content, format, and quality are heterogeneous and cover, for example, service reports, review reports, and embedded systems’ measurements. This information provides producers a better understanding of user expectations, usage situations, product behavior, and performance.
1.5K
14 Jun 2022
Topic Review
Solar-Powered Plant Protection Equipment
Solar photovoltaic (PV) devices present a positive approach to sustainable crop production by reducing crop loss in various ways. This might result in the extensive use of PV devices in the near future. PV-based plant protection equipment/devices are primarily utilized in protecting crops from birds, weeds, or insects. The utilization of PV systems for different applications constitutes a new era in agriculture, horticulture, and forest sectors. A PV system is a potential alternative, offering more opportunities in operating different types of electricity-based agricultural equipment. The development of devices with simple construction/operation for plant protection may work well on small-scale farms.
1.5K
28 Nov 2022
Topic Review
Electrical Transcription
Electrical transcriptions are special phonograph recordings made exclusively for radio broadcasting, which were widely used during the 'Golden Age of Radio', wherein, they provided material—from station-identification jingles and commercials to full-length programs—for use by local stations, affiliates of one of the radio networks. Physically, electrical transcriptions look much like long-playing records that were popular for decades. They differ from consumer-oriented recordings, however, in that they were "distributed to radio stations for the purpose of broadcast, and not for sale to the public.... The ET had higher quality audio than was available on consumer records" largely because they had less surface noise than commercial recordings,
1.5K
01 Oct 2022
Topic Review
Combat History of the T-26
Though nearly obsolete by the beginning of World War II, the T-26 was the most important tank of the Spanish Civil War and played a significant role during the Battle of Lake Khasan in 1938 as well as in the Winter War. The T-26 was the most numerous tank in the Red Army's armoured force during the German invasion of the Soviet Union in June 1941. The Soviet T-26 light tanks last saw combat in August 1945, in Manchuria. The T-26 was used extensively in the armies of Spain, China and Turkey. In addition, captured T-26 light tanks were used by the Finnish, German, Romanian and Hungarian armies.
1.5K
29 Sep 2022
Topic Review
GM B Platform
The B platform (also known as the B body) is a full-size rear-wheel drive car platform produced by General Motors from 1926 to 1996. Originally made for Oldsmobile and Buick, all of General Motors's five main makes would use it at some point. It was closely related to the original rear-wheel drive GM C and GM D platforms, and was used for convertibles, hardtops, coupes, sedans, and station wagons. With approximately 12,960,000 units built, divided across four marques, the 1965-70 B platform is the fourth best selling automobile platform in history after the Volkswagen Beetle, Ford Model T and the Lada Riva. Originally, the B platform was used for Buick and Oldsmobile products, with the first GM A platform for Chevrolet and Oakland, and the above GM C and D platforms devoted to Cadillac. During the General Motors Companion Make Program, Vikings and Marquettes were also manufactured on this platform, as were La Salles from 1936 to 1940. The B platform was used for the Pontiac Streamliner Torpedo and Streamliner, the Oldsmobile L-Series, Series 70 and Series 88, the Buick Special and Century, the LaSalle Series 50 and the Cadillac Series 60, Series 61 and Series 63. The B platform became GM's base model platform in 1958, when all existing Chevrolet products were upgraded to the B platform. For the 1959 model year, the previous A and B bodies were built on the new B platform that lasted until 1996. During this period, the B was the most modest of GM's three full-sized platforms, slotting below the upscale C and the luxury D. The A platform designation would be resurrected by GM in 1964 for a new series of intermediate-sized cars including the Chevrolet Chevelle, Pontiac Tempest, Oldsmobile Cutlass and Buick Skylark.
1.5K
24 Nov 2022
Topic Review
List of AMD Athlon Microprocessors
Athlon is the name of a family of CPUs designed by AMD, targeted mostly at the desktop market. It has been largely unused as just "Athlon" since 2001 when AMD started naming its processors Athlon XP, but in 2008 began referring to single core 64-bit processors from the AMD Athlon X2 and AMD Phenom product lines. Later the name began being used for some APUs.
1.5K
26 Oct 2022
Topic Review
General Atomics Avenger
The General Atomics Avenger (formerly Predator C) is a developmental unmanned combat air vehicle built by General Atomics Aeronautical Systems for the U.S. military.
1.5K
03 Nov 2022
Topic Review
Alternative Clinker Technologies for Reducing Carbon Emissions
The production of one ton of Ordinary Portland Cement releases considerable amounts of CO2 into the atmosphere. As the need and demand for this material grows exponentially, it has become a challenge to increase its production at a time when climate-related problems represent a major global concern. The two main CO2 contributors in this process are fossil fuel combustion to heat the rotary kiln and the chemical reaction associated with the calcination process, in the production of the clinker, the main component of OPC. The current entry presents a critical review of the existent alternative clinker technologies (ACTs) that are under an investigation trial phase or under restricted use for niche applications and that lead to reduced emissions of CO2.
1.5K
24 Jan 2022
Topic Review
Dynamic Positioning
Dynamic positioning (DP) is a computer-controlled system to automatically maintain a vessel's position and heading by using its own propellers and thrusters. Position reference sensors, combined with wind sensors, motion sensors and gyrocompasses, provide information to the computer pertaining to the vessel's position and the magnitude and direction of environmental forces affecting its position. Examples of vessel types that employ DP include, but are not limited to, ships and semi-submersible mobile offshore drilling units (MODU), oceanographic research vessels, cable layer ships and cruise ships. The computer program contains a mathematical model of the vessel that includes information pertaining to the wind and current drag of the vessel and the location of the thrusters. This knowledge, combined with the sensor information, allows the computer to calculate the required steering angle and thruster output for each thruster. This allows operations at sea where mooring or anchoring is not feasible due to deep water, congestion on the sea bottom (pipelines, templates) or other problems. Dynamic positioning may either be absolute in that the position is locked to a fixed point over the bottom, or relative to a moving object like another ship or an underwater vehicle. One may also position the ship at a favorable angle towards wind, waves and current, called weathervaning. Dynamic positioning is used by much of the offshore oil industry, for example in the North Sea, Persian Gulf, Gulf of Mexico, West Africa, and off the coast of Brazil . There are currently more than 1800 DP ships.
1.5K
04 Nov 2022
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