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Topic Review
Biography
Topic Review
Electromagnetic Vibrational Energy Harvesting Principles
As industries need more real-time monitoring and interconnected systems, the demand for wireless sensors expands. Vibrational energy harvesters are a potential solution for powering these sensors, as vibrations commonly exist where monitoring occurs. Developments in low-power circuitry have also led to the feasibility of these types of harvesters. Electromagnetic harvesters are a standout among various types of vibrational harvesters due to their ability to capture kinetic energy in a low-frequency range. This leads to these devices being more applicable in real-world applications where ambient vibrations are typical of having low frequencies.
1.3K
04 Aug 2022
Topic Review
Communications of UAS Traffic Management
A UAS traffic management (UTM) system requires that each UAV be able to see and be seen; therefore, the communication channel becomes crucial. In the last five years, state-of-the-art research has focused on three types of communication: ADS-B, ADS-B-like communication, and Remote ID. ADS-B is the legacy system currently used in manned flights and has been mandatory since 2020. Similarly, the ADS-B-like system works similarly to ADS-B but uses different types of wireless communication technology such as 4G, XBee, and APRS (automatic packet reporting system). However, Remote ID is a new standard established, based on Bluetooth/Wi-Fi technology that fulfills the requirement for current UTM operations. The communications in UTM can be categorized into ADS-B, Remote ID, and ADS-B-like systems. The information presented here consist of definition, data format, technology, and research application.
1.3K
14 Mar 2022
Topic Review
Flexible AC Transmission Systems Technologies
The advancements in power electronics have shown considerable improvement in satisfying the need for voltage stability and power quality improvement by introducing Flexible AC Transmission Systems (FACTS) technology. The main functions of these devices are reactive power compensation, voltage control, and power flow control to enhance better power quality in modern power systems.
1.3K
05 Jul 2022
Topic Review
Energy Harvesting from Fluid Flow Using Piezoelectric Materials
The use of piezoelectric-energy harvesting has grown in popularity during the previous two decades. Several implantable energy-harvesting technologies are being developed by scientists to power portable gadgets and medical equipment. Thanks to new technologies, researchers have been able to fabricate highly flexible piezoelectric devices and electronics, paving the way for the development of biocompatible and long-lasting harvesters.
1.3K
16 Dec 2022
Topic Review
Apple Bandai Pippin
The Apple Bandai Pippin, stylized PiP P!N, is a multimedia technology console, designed by Apple Computer. The console is based on the Apple Pippin platform – a derivative of the Apple Macintosh platform. Bandai produced the ATMARK and @WORLD consoles between 1996 and 1997. It was sold at $599. The goal of the Bandai Pippin was to create an inexpensive computer system aimed mostly at playing CD-based multimedia software, especially games, but also functioning as a thin client. The operating system is a version of System 7.5.2, and is based on a 66 MHz PowerPC 603 processor and a 14.4 kb/s modem. It features a 4×-speed CD-ROM drive and a video output that can connect to a standard television display.
1.3K
27 Oct 2022
Topic Review
Degree of Ambition and Renewable Energy in Shipping
The early strategy outlines various degrees of desire for the international shipping industry, stressing that technical advancement and the international introduction of alternative fuels and/or renewable energies for international shipping will be crucial to achieving the overall aim. Renewable energy can be implemented in shipping in one of two ways: (1) as retrofits for current fleets or (2) as part of new vessel designs. In terms of new ship concepts, most renewable energy technology will deliver electricity for auxiliary and additional uses, regardless of ship size.
1.3K
14 Nov 2022
Topic Review
Foundation (Engineering)
A foundation is the element of a structural engineering which connects it to the ground, and transfers loads from the structure to the ground. Foundations are generally considered either shallow or deep. Foundation engineering is the application of soil mechanics and rock mechanics (Geotechnical engineering) in the design of foundation elements of structures.
1.3K
08 Nov 2022
Topic Review
Internet of Things (IoT)
The Internet of Things (IoT) is an extensive network of heterogeneous devices that provides an array of innovative applications and services. IoT networks enable the integration of data and services to seamlessly interconnect the cyber and physical systems.
1.3K
18 Feb 2022
Topic Review
Hydraulic Free-Piston Engines
The hydraulic free-piston engine (HFPE) is a kind of hybrid-powered machine which combines the reciprocating piston-type internal combustion engine and the plunger pump as a whole. In recent years, the HFPE has been investigated by a number of research groups worldwide due to its potential advantages of high efficiency, energy savings, reduced emissions and multi-fuel operation.
1.3K
14 Jul 2021
Topic Review
Drug Resistance Mechanisms in Tuberculosis
The increased incidence of multidrug-resistant (MDR) Mycobacterium tuberculosis (Mtb) strains, defined as resistant to at least isoniazid and rifampin, the two highly bactericidal first-line drugs, is a major concern for tuberculosis (TB) control. The worldwide estimate of almost half a million incident cases of MDR/rifampin-resistant TB, is causing increasing concern. In this view, it is important to continuously update the knowledge on the mechanisms involved in the development of drug-resistant TB. Clinical, biological and microbiological reasons account for the generation of resistance, including: (i) nonadherence of patients to their therapy, and/or errors of physicians in therapy management, (ii) complexity and poor vascularization of granulomatous lesions, which obstruct drug distribution to some sites, resulting in resistance development, (iii) intrinsic drug resistance of tubercle bacilli, (iv) formation of non-replicating, drug-tolerant bacilli inside the granulomas, (v) development of mutations in Mtb genes, which are the most important molecular mechanisms of resistance. Here, a piece of information on the interplay of these factors is provided, to facilitate the clinical and microbiological management of drug-resistant TB at the global level, with attention also to the most recent diagnostic methods.
1.3K
21 Apr 2020
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