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Topic Review
Biography
Topic Review
Battery-Less RFID-Based Wireless Sensors
Wireless sensors are becoming increasingly popular in the home and industrial sectors and are used for a range of applications, from temperature or humidity monitoring to food-quality inspection of products being sold on the market. One of the main reasons for using wireless technology is that it affords non-contact, non-invasive sensing. This ability eliminates the need for long cables required for information transfer and reduces the spread of germs and brings comfort to the users.
1.4K
27 Jul 2021
Topic Review
CMS Magnetic System Model
Compact Muon Solenoid (CMS) detector and the methodology of modelling the heterogeneous CMS magnetic system for describing the magnetic flux of the CMS superconducting solenoid enclosed in a steel flux-return yoke.
1.4K
15 Feb 2022
Topic Review
Best Estimate Plus Uncertainty Analysis in LBLOCA
As one of the Deterministic safety analysis (DSA) methodologies, best estimate plus uncertainty (BEPU) generates more realistic results that can be used in the license application of nuclear power plants (NPPs). However, uncertainty evaluation of parameters is needed in BEPU. The safety regulatory focuses on the large break loss of coolant accident (LBLOCA) of an advanced PWR. The BEPU analysis is mainly performed by TRACE V5.0 patch 4 code, and the uncertainty analysis is conducted based on DAKOTA code.
1.4K
18 Feb 2022
Topic Review
VI-based Inverters
The transition from the synchronous generator (SG)-based conventional power generation to converter-based renewable energy sources (RES) deteriorates the frequency stability of the power system due to the intermittency of wind and photovoltaic (PV) generation. Unlike conventional power generation, the lack of rotational inertia becomes the main challenge to interface RES with the electrical grid via power electronic converters. In the past several years, researchers have addressed this issue by emulating the behavior of SG mathematically via pulse width modulation (PWM) controller linked to conventional inverter systems. These systems are technically known as VI-based inverters, which consist of virtual synchronous machine (VSM), virtual synchronous generator (VSG), and synchronverter.
1.4K
30 Oct 2020
Topic Review
GeForce 900 Series
The GeForce 900 series is a family of graphics processing units developed by Nvidia, succeeding the GeForce 700 series and serving as the high-end introduction to the Maxwell microarchitecture, named after James Clerk Maxwell. They are produced with TSMC's 28 nm process. With Maxwell, the successor to Kepler, Nvidia expected three major outcomes: improved graphics capabilities, simplified programming, and better energy efficiency compared to the GeForce 700 series and GeForce 600 series. Maxwell was announced in September 2010, with the first Maxwell-based GeForce consumer-class products released in early 2014.
1.4K
17 Nov 2022
Topic Review
Systems Thinking
Systems thinking is an evolving field, and there is growing demand to integrate systems thinking into many fields. As this demand increases, so does the need for and importance of identifying systems thinkers.
1.4K
16 May 2022
Topic Review
Thermal Load and Heat Transfer in Dental Implants
Heat is a kinetic process whereby energy flows from between two systems, hot-to-cold objects. In oro-dental implantology, conductive heat transfer/(or thermal stress) is a complex physical phenomenon to analyze and consider in treatment planning. Hence, ample research has attempted to measure heat-production to avoid over-heating during bone-cutting and drilling for titanium (Ti) implant-site preparation and insertion, thereby preventing/minimizing early (as well as delayed) implant-related complications and failure. The goal is two-fold: (A) the standard heat equation is proposed to be solved, modifying the imposed boundary conditions without any additional source term, and on the other hand, (B) a gap is filled in the literature via obtaining an exact analytical solution of a somewhat simplified problem, which nevertheless, encapsulates the physics and reproduces the results already found in previous works via numerical analyses. In addition, for the first time, the intrinsic time is introduced and involved herein, a “proper” time that characterizes the geometry of the dental implant fixture and overall system, and how the interplay between that time and the exposure time influences temperature changes, and subsequent implant survival, are shown. Thus, this work aims to complement the overall clinical diagnostic and treatment plan for enhanced biological one–implant interface and mechanical implant stability and success rates, whether for immediate or delayed implant loading strategies.
1.4K
11 Mar 2022
Topic Review
Barriers to Electric Vehicle Adoption in Thailand
Electric vehicles (EVs) are considered to be a solution for sustainable transportation. EVs can reduce fossil fuel consumption, greenhouse gas emissions, and the negative impacts of climate change and global warming, as well as help improve air quality.
1.3K
09 Dec 2021
Topic Review
Avocado Peel Extracts in Topical Formulations
The avocado fruit, a derivative of the avocado tree of botanical name Persea americana Mill.. Avocado peel is a cheap and promising option for the retrieval of phenolic compounds, and it was reported that this by-product possesses higher total phenolic content, radical scavenging capacity, and antioxidant activity compared to the pulp. These results highlight the possibility of obtaining sustainable cosmetics, reducing significantly the negative impacts on the environment by the incorporation of extracts sourced from the avocado peel, an interesting source of phenolic compounds, abundant and low-cost by-product.
1.3K
18 Mar 2022
Topic Review
Resonant Vibration Energy Harvesters
An increasing number of practical applications (e.g. medical implants, embedded sensors in buildings and bridges, industrial applications) are based on the use of Wireless Sensor Nodes (WSNs), which are small computing devices capable of collecting and transmitting data to a base station. In order to limit or to avoid the drawbacks associated to the use of primary batteries (expensive maintenance/replacement, insufficient or unpredictable duration of operational life, not eco-friendly disposal due to their hazardous chemical content), the required energy can be delivered to the WSNs by energy harvesting. Energy harvesting is the conversion of otherwise wasted energy into electrical energy. Since vibrations can be found almost everywhere, an interesting possibility is represented by the use of vibration energy harvesters. Here the attention is focused on Resonant Vibration Energy Harvesters (RVEHs) and in particular on Piezoelectric RVEHs and Electromagnetic RVEHs. A brief description of their operating principles is provided and their equivalent electric circuits are analyzed in order to identify the operating conditions able to maximize the extracted electrical power. This is a crucial aspect in applications involving energy harvesting systems. Moreover a brief introduction to the concepts of Electrical and Mechanical Tuning Techniques is also provided.
1.3K
18 Sep 2021
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