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Topic Review
Chemical Sensor Array
A chemical sensor array is a sensor architecture with multiple sensor components that create a pattern for analyte detection from the additive responses of individual sensor components. There exist several types of chemical sensor arrays including electronic, optical, acoustic wave, and potentiometric devices, which are described below. These chemical sensor arrays can employ multiple sensor types that are cross-reactive or tuned to sense specific analytes.
  • 1.3K
  • 18 Jul 2023
Topic Review
Vehicle Tracking System
A vehicle tracking system combines the use of automatic vehicle location in individual vehicles with software that collects these fleet data for a comprehensive picture of vehicle locations. Modern vehicle tracking systems commonly use GPS or GLONASS technology for locating the vehicle, but other types of automatic vehicle location technology can also be used. Vehicle information can be viewed on electronic maps via the Internet or specialized software. Urban public transit authorities are an increasingly common user of vehicle tracking systems, particularly in large cities.
  • 1.3K
  • 04 Nov 2022
Biography
Alan Bovik
Alan Conrad Bovik (born June 25, 1958) is an American engineer and vision scientist. He is a Professor at The University of Texas at Austin (UT-Austin), where he holds the Cockrell Family Regents Endowed Chair and is Director of the Laboratory for Image and Video Engineering (LIVE). He is a faculty member in the UT-Austin Department of Electrical and Computer Engineering (UT ECE), the Institute
  • 1.3K
  • 23 Nov 2022
Topic Review
Sound Trap
A sound trap, also known as a duct silencer, sound attenuator, or muffler, is a special acoustical treatment of Heating Ventilating and Air-Conditioning (HVAC) ductwork designed to reduce transmission of noise through the ductwork, either from equipment into occupied spaces in a building, or between occupied spaces. In its simplest form, a sound trap consists of an baffle within the ductwork. These baffles often contain sound-absorbing materials. The physical dimensions and baffle configuration of sound traps are selected to attenuate a specific range of frequencies. Unlike conventional internally-lined ductwork, which is only effective at attenuating mid- and high-frequency noise, sound traps can achieve broader band attenuation in relatively short lengths. Certain types of sound traps are essentially a Helmholtz resonator used as a passive noise-control device.
  • 1.3K
  • 25 Oct 2022
Topic Review
Flow Battery
A flow battery, or redox flow battery (after reduction–oxidation), is a type of electrochemical cell where chemical energy is provided by two chemical components dissolved in liquids that are pumped through the system on separate sides of a membrane. Ion exchange (accompanied by flow of electric current) occurs through the membrane while both liquids circulate in their own respective space. Cell voltage is chemically determined by the Nernst equation and ranges, in practical applications, from 1.0 to 2.43 volts. A flow battery may be used like a fuel cell (where the spent fuel is extracted and new fuel is added to the system) or like a rechargeable battery (where an electric power source drives regeneration of the fuel). While it has technical advantages over conventional rechargeables, such as potentially separable liquid tanks and near unlimited longevity, current implementations are comparatively less powerful and require more sophisticated electronics. The energy capacity is a function of the electrolyte volume and the power is a function of the surface area of the electrodes.
  • 1.3K
  • 12 Oct 2022
Topic Review
Mineral Processing
In the field of extractive metallurgy, mineral processing, also known as ore dressing, is the process of separating commercially valuable minerals from their ores.
  • 1.3K
  • 27 Oct 2022
Topic Review
Electromigration
Electromigration is the transport of material caused by the gradual movement of the ions in a conductor due to the momentum transfer between conducting electrons and diffusing metal atoms. The effect is important in applications where high direct current densities are used, such as in microelectronics and related structures. As the structure size in electronics such as integrated circuits (ICs) decreases, the practical significance of this effect increases.
  • 1.3K
  • 24 Nov 2022
Topic Review
Chicken Diseases by Monitoring Clinical Symptoms
Automatic disease detection and early warning technology based on clinical symptoms have the potential to monitor poultry health status in a real-time, fast and non-destructive way. The detection of poultry diseases is usually based on the sound characteristics, body temperature characteristics, fecal characteristics, production characteristics (water intake, feed intake and so on), activity characteristics and posture characteristics of the animals. lists the comparison of five clinical symptoms used for the early warning of disease.
  • 1.3K
  • 15 Aug 2022
Topic Review
Short Code
Short codes, or short numbers, are short digit sequences, significantly shorter than telephone numbers, that are used to address messages in the Multimedia Messaging System (MMS) and short message service (SMS) systems of mobile network operators. In addition to messaging, they may be used in abbreviated dialing. Short codes are designed to be easier to read and remember than telephone numbers. Short codes are unique to each operator at the technological level. Even so, providers generally have agreements to avoid overlaps. In some countries, such as the United States, some classes of numbers are inter-operator (used by multiple providers or carriers, U.S. inter-operator numbers are called common short codes). Short codes are widely used for value-added services such as charity donations, mobile services, ordering ringtones, and television program voting. Messages sent to a short code can be billed at a higher rate than a standard SMS and may even subscribe a customer to a recurring monthly service that will be added to the customer's mobile phone bill until the user texts, for example, the word "STOP" to terminate the service.
  • 1.2K
  • 10 Nov 2022
Topic Review
Infrared and Visible Image Fusion
Infrared and visible image fusion technologies make full use of different image features obtained by different sensors, retain complementary information of the source images during the fusion process, and use redundant information to improve the credibility of the fusion image.
  • 1.2K
  • 08 Jan 2021
Biography
Grigory Gurevich
Grigory Gurevich is a painter, sculptor, graphic artist, photographer, illustrator, bookmaker, mime and inventor. Originally from Leningrad (Saint Petersburg), Russia, he now resides in New Jersey. The son of an architect, Grigory Gurevich was born in 1938 December 26 in Leningrad (Saint Petersburg), Russia.[1] At the beginning of World War II, he and a small group of children were evacuated
  • 1.2K
  • 26 Dec 2022
Topic Review
Doping (Semiconductor)
In semiconductor production, doping is the intentional introduction of impurities into an intrinsic semiconductor for the purpose of modulating its electrical and optical and structural properties. The doped material is referred to as an extrinsic semiconductor. A semiconductor doped to such high levels that it acts more like a conductor than a semiconductor is referred to as a degenerate semiconductor. In the context of phosphors and scintillators, doping is better known as activation. Doping is also used to control the color in some pigments.
  • 1.2K
  • 08 Nov 2022
Topic Review
HP OmniGo 700LX Communicator Plus
The HP 200LX Palmtop PC (F1060A, F1061A, F1216A), also known as project Felix, is a personal digital assistant introduced by Hewlett-Packard in August 1994. It was often called a Palmtop PC, and it was notable that it was, with some minor exceptions, a MS-DOS-compatible computer in a palmtop format, complete with a monochrome graphic display, QWERTY keyboard, serial port, and PCMCIA expansion slot.
  • 1.2K
  • 27 Oct 2022
Biography
Raymix
Edmundo Gómez Moreno (born 17 February 1991), better known by his stage name Raymix, is a Mexican musician and aerospace engineer. Nicknamed El Rey de la Electrocumbia, Raymix started his music career in the early 2010s, when he joined a trance project called Light & Wave with two other Mexican musicians. Their song "Feeling the City" was featured on the Armin van Buuren radio show A State of T
  • 1.2K
  • 22 Nov 2022
Topic Review
TiO2-Based Nanostructures for Microbial Inactivation
Pathogenic microorganisms can spread throughout the world population, as the current COVID-19 pandemic has dramatically demonstrated. In this scenario, a protection against pathogens and other microorganisms can come from the use of photoactive materials as antimicrobial agents able to hinder, or at least limit, their spreading by means of photocatalytically assisted processes activated by light—possibly sunlight—promoting the formation of reactive oxygen species (ROS) that can kill microorganisms in different matrices such as water or different surfaces without affecting human health. Here, we focus the attention on TiO2 nanoparticle-based antimicrobial materials, intending to provide an overview of the most promising synthetic techniques, toward possible large-scale production, critically review the capability of such materials to promote pathogen (i.e., bacteria, virus, and fungi) inactivation, and, finally, take a look at selected technological applications.
  • 1.2K
  • 08 Dec 2020
Topic Review
Desalination in China
In recent decades, the ever-growing demands for clean water in households and industries have urged researchers to take every possible step to deal with the global water crisis. Seawater desalination has turned out to be the most promising and efficient way to provide clean water. Owing to the advancement of synthetic chemistries and technologies, great success has been achieved in the desalination and utilization of seawater worldwide. China, with the world’s largest population, has pushed the development of desalination and multipurpose utilization of seawater further in respect of materials, technologies and services, etc. 
  • 1.2K
  • 30 Mar 2021
Topic Review
Computer-Supported Collaborative Learning
Computer-supported collaborative learning (CSCL) is a pedagogical approach wherein learning takes place via social interaction using a computer or through the Internet. This kind of learning is characterized by the sharing and construction of knowledge among participants using technology as their primary means of communication or as a common resource. CSCL can be implemented in online and classroom learning environments and can take place synchronously or asynchronously. The study of computer-supported collaborative learning draws on a number of academic disciplines, including instructional technology, educational psychology, sociology, cognitive psychology, and social psychology. It is related to collaborative learning and computer supported cooperative work (CSCW).
  • 1.2K
  • 01 Dec 2022
Biography
Neel Kashkari
Neel Tushar Kashkari[1] (born July 30, 1973) is an United States banker and politician who is President of the Federal Reserve Bank of Minneapolis. As interim Assistant Secretary of the Treasury for Financial Stability from October 2008 to May 2009, he oversaw the Troubled Asset Relief Program (TARP) that was a major component of the U.S. government's response to the financial crisis of 2007–0
  • 1.2K
  • 27 Dec 2022
Biography
George E. Waring Jr.
George E. Waring Jr. (July 4, 1833[1] – October 29, 1898) was an American sanitary engineer and civic reformer. He was an early American designer and advocate of sewer systems that keep domestic sewage separate from storm runoff. Waring was born in Pound Ridge, New York, the son of George E. Waring Sr., a wealthy stove manufacturer. Trained in agricultural chemistry, he began to lecture on
  • 1.2K
  • 22 Nov 2022
Topic Review
Applications of E-Nose in Tea Quality Evaluation
The advancement in sensor technology has replaced the human olfaction system with an artificial olfaction system, i.e., electronic noses (E-noses) for quality control of teas to differentiate the distinct aromas. An E-nose system’s sensor array consists of some non-specific sensors, and an odor stimulus generates a fingerprint from this array. Fingerprints or patterns from known odors are used to train a pattern recognition model such that unknown odors can be classified and identified subsequently. Recently, the E-nose has been regarded as a powerful tool for tea quality monitoring. For instance, wide applications in tea research include tea classification, tea fermentation methods, tea components, tea grade quality, and tea storage.
  • 1.2K
  • 28 Sep 2022
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