Results 21 to 30 of about 16,196 (251)

Regional Ventilation–Perfusion Matching by Electrical Impedance Tomography After Single Lung Transplant

ASAIO Journal, 2023
Single lung transplantation (LUTX) can be the last therapeutic option for a growing cohort of patients suffering from end-stage respiratory failure. Postoperative ventilatory management of single LUTX recipients is challenged by the coexistence of the diseased native lung and a healthy—but fragile—graft.
Scaravilli, Vittorio, Colombo, Sebastiano Maria, Fumagalli, Jacopo, Mauri, Tommaso, Zanella, Alberto, Rosso, Lorenzo, Grasselli, Giacomo   +6 more
openaire   +2 more sources

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, Dai Jianfeng, Zhao Hucheng, Gao Zhan, Lu Yang, Sun Xueming   +5 more
doaj   +1 more source

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, Junichi KURATA, Hideo UTSUNO, Yoshihiro MURAKAMI   +3 more
doaj   +1 more source

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, Shawn S. H. Hsu, Ahmed Alieldin, Chaoyun Song, Yeke Liu, Yi Huang   +5 more
doaj   +1 more source

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., Virdee B. S., See C. H., Abd-Alhameed R. A., Falcone F., Limiti E.   +5 more
openaire   +2 more sources

MOF-derived carbon materials for efficient electromagnetic interference shielding [PDF]

RSC Advances
Electromagnetic interference (EMI) shielding has attracted growing attention for broadband and high-frequency electronic systems. Metal–organic framework (MOF)-derived carbons have attracted considerable attention as EMI shielding materials owing to ...
Jun Du, Hengchao Sun, Yao Li, Shuai Jiang, Yiqiang Zhao   +4 more
doaj   +1 more source

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, Negri Lucas Hermann, Bertemes-Filho Pedro   +2 more
doaj   +1 more source

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, Andrius Chaziachmetovas, Tomas E. Gomez Alvarez-Arenas   +2 more
doaj   +1 more source

In vitro and in silico modelling of ROS1‐positive non‐small cell lung cancer reveals fusion‐dependent tyrosine kinase inhibitor responses

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, Marc Terrones, Felicia Rodrigues Fortes, Anne Schepers, Alessia Denis, Christophe Deben, Ken Op de Beeck, Guy Van Camp, Geert Vandeweyer   +8 more
wiley   +1 more source

Single‐cell DNA methylation profiling: Technologies, computation, and applications in precision oncology

Molecular Oncology, EarlyView.
Single‐cell DNA methylation (scDNAme) profiling maps epimutational clonal evolution, revealing mechanisms of malignancy and therapeutic resistance across diverse cancer types. By providing a high‐resolution landscape of intratumoral heterogeneity, these technologies empower precise patient stratification, guide the development of enhanced ...
Ik Soo Kim
wiley   +1 more source