Results 21 to 30 of about 17,521 (253)
Sensors, 2021 The development of biomedical devices benefits patients by offering real-time healthcare. In particular, pacemakers have gained a great deal of attention because they offer opportunities for monitoring the patient’s vitals and biological statics in real ...
Ilkyu Kim +3 more
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Study on frequency tracking method of ultrasonic scalpel based on impedance matching
Dianzi Jishu Yingyong, 2019 With the development of science and technology, ultrasonic scalpel is widely used in medical treatment. In practical application, in order to make the transducer of the ultrasonic scalpel convert electrical energy into mechanical energy as much as ...
Yang Lin +5 more
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Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements
Mechanical Engineering Journal, 2017 This paper describes optimum values of an electrical circuit for energy harvesting using a beam and piezoelectric elements. Energy harvesting techniques recover energy from the environment. We target the energy harvesting methods that extract energy from
Keisuke YAMADA +3 more
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Impedance Matching Network Based on Metasurfaces (2-D Metamaterials) for Electrically Small Antennas [PDF]
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, 2020 The paper shows the gain-bandwidth limitations of traditional discrete component matching used in electrically small antennas can be overcome by implementing the impedance matching network with metasurface. The proposed metasurface can optimize maximum power transfer to electrically small antennas and achieve superior broadband performance.
Alibakhshikenari M. +5 more
openaire +2 more sources
High-Power Wire Bonded GaN Rectifier for Wireless Power Transmission
IEEE Access, 2020 A novel wire bonded GaN rectifier for high-power wireless power transfer (WPT) applications is proposed. The low breakdown voltage in silicon Schottky diodes limits the high-power operations of microwave rectifier.
Sumin David Joseph +5 more
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Design of Howland current sources using differential evolution optimization
Journal of Electrical Bioimpedance, 2020 Howland circuits have been widely used in Electrical Bioimpedance Spectroscopy applications as reliable current sources. This paper presents an algorithm based on Differential Evolution for the automated design of Enhanced Howland Sources according to ...
Morcelles Kaue Felipe +2 more
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SensorsWith the increase in groundwater exploration, underground mineral resource exploration, and non-destructive investigation of cultural relics, high-resolution earth electrical characteristic measurement has emerged as a mainstream technique owing to its ...
Kuiyuan Zhang +3 more
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Ultrasonic Air Coupled Transducer Output Impedance Measurement Technique
Elektronika ir Elektrotechnika, 2019 Estimation of the output impedance of ultrasonic transducers is required for electrical matching circuits design and for receiving amplifiers noise optimization.
Linas Svilainis +2 more
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FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Molecular Oncology, EarlyView.Drug resistance limits treatment success in a subset of lung cancers driven by ROS1 gene alterations. Using patient‐derived cells and computer simulations, we studied three key mutations and how they affect five targeted drugs. The mutations reduced drug effectiveness in different ways by altering protein structure and behavior.
Farhan Ul Haq +8 more
wiley +1 more source