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144 Results Found

  • Article
  • Open Access
2 Citations
1,678 Views
10 Pages

This paper proposes a microwave rectifier designed for the popular 5G band, featuring impedance dispersion compensation and a cross-type impedance matching network. The rectifier has an ultra-high power conversion efficiency. The compensation network...

  • Article
  • Open Access
8 Citations
4,318 Views
15 Pages

Dual-Band Rectifier Circuit Design for IoT Communication in 5G Systems

  • Ioannis D. Bougas,
  • Maria S. Papadopoulou,
  • Achilles D. Boursianis,
  • Spyridon Nikolaidis and
  • Sotirios K. Goudos

Radio-frequency (RF) energy harvesting (EH) is emerging as a reliable and constantly available free energy source. The primary factor determining whether this energy can be utilized is how efficiently it can be collected. In this work, an RF EH syste...

  • Article
  • Open Access
11 Citations
4,603 Views
15 Pages

The coupling of cannabinoid receptors, CB1 and CB2, to G protein-coupled inward rectifier potassium channels, GIRK1 and GIRK2, modulates neuronal excitability in the human brain. The present study established and validated the functional expression i...

  • Article
  • Open Access
1 Citations
3,207 Views
13 Pages

Silicon Self-Switching Diode (SSD) as a Full-Wave Bridge Rectifier in 5G Networks Frequencies

  • Tan Yi Liang,
  • Nor Farhani Zakaria,
  • Shahrir Rizal Kasjoo,
  • Safizan Shaari,
  • Muammar Mohamad Isa,
  • Mohd Khairuddin Md Arshad and
  • Arun Kumar Singh

11 December 2022

The rapid growth of wireless technology has improved the network’s technology from 4G to 5G, with sub-6 GHz being the centre of attention as the primary communication spectrum band. To effectively benefit this exclusive network, the improvement...

  • Article
  • Open Access
8 Citations
8,177 Views
10 Pages

2 August 2022

(1) Background: In addition to the major phytocannabinoids, trans9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD), the cannabis plant (Cannabis sativa L.) synthesizes over 120 additional cannabinoids that are known as minor cannabi...

  • Article
  • Open Access
1 Citations
2,214 Views
17 Pages

Background: Dorsal raphe serotonin (5-hydroxytryptamine, 5-HT) neurons are spontaneously active and release 5-HT that is critical for normal brain function and regulates mood and emotion. Serotonin reuptake inhibitors (SSRIs) increase the synaptic an...

  • Article
  • Open Access
14 Citations
6,619 Views
19 Pages

A V2G Enabled Bidirectional Single/Three-Phase EV Charging Interface Using Modular Multilevel Buck PFC Rectifier

  • Anekant Jain,
  • Krishna Kumar Gupta,
  • Sanjay K. Jain,
  • Pallavee Bhatnagar and
  • Hani Vahedi

The battery charging power electronics interface of an electric vehicle (EV) must be capable of bidirectional power flow to enable both grid-to-vehicle (G2V) and vehicle-to-grid (V2G) operations. In the presence of a single/three-phase AC supply, the...

  • Article
  • Open Access
147 Views
10 Pages

Rectifying and Photoconductive Responses in Graphene–Double-Insulator–Graphene (GI2G) Structures

  • Takashi Uchino,
  • Yanjun Heng,
  • Chao Tang,
  • Akira Satou,
  • Hirokazu Fukidome and
  • Taiichi Otsuji

20 February 2026

Advanced solar energy-harvesting devices, such as optical rectennas, typically use metal–insulator–metal diodes because of the ultrafast response of these diodes at high frequencies. However, the diode performance is limited by weak curre...

  • Article
  • Open Access
9 Citations
4,754 Views
15 Pages

AsKC11, a Kunitz Peptide from Anemonia sulcata, Is a Novel Activator of G Protein-Coupled Inward-Rectifier Potassium Channels

  • Dongchen An,
  • Ernesto Lopes Pinheiro-Junior,
  • László Béress,
  • Irina Gladkikh,
  • Elena Leychenko,
  • Eivind A. B. Undheim,
  • Steve Peigneur and
  • Jan Tytgat

15 February 2022

(1) Background: G protein-coupled inward-rectifier potassium (GIRK) channels, especially neuronal GIRK1/2 channels, have been the focus of intense research interest for developing drugs against brain diseases. In this context, venom peptides that sel...

  • Article
  • Open Access
1 Citations
1,538 Views
21 Pages

An In Silico Investigation of the Pathogenic G151R G Protein-Gated Inwardly Rectifying K+ Channel 4 Variant to Identify Small Molecule Modulators

  • Eleni Pitsillou,
  • Julia J. Liang,
  • Noa Kino,
  • Jessica L. Lockwood,
  • Andrew Hung,
  • Assam El-Osta,
  • Asmaa S. AbuMaziad and
  • Tom C. Karagiannis

29 November 2024

Primary aldosteronism is characterised by the excessive production of aldosterone, which is a key regulator of salt metabolism, and is the most common cause of secondary hypertension. Studies have investigated the association between primary aldoster...

  • Article
  • Open Access
1 Citations
2,151 Views
15 Pages

Identification of Potential Modulators of a Pathogenic G Protein-Gated Inwardly Rectifying K+ Channel 4 Mutant: In Silico Investigation in the Context of Drug Discovery for Hypertension

  • Eleni Pitsillou,
  • Alexander N. O. Logothetis,
  • Julia J. Liang,
  • Assam El-Osta,
  • Andrew Hung,
  • Asmaa S. AbuMaziad and
  • Tom C. Karagiannis

5 December 2023

Genetic abnormalities have been associated with primary aldosteronism, a major cause of secondary hypertension. This includes mutations in the KCNJ5 gene, which encodes G protein-gated inwardly rectifying K+ channel 4 (GIRK4). For example, the substi...

  • Article
  • Open Access
7 Citations
4,749 Views
14 Pages

Effects of Nitric Oxide on Voltage-Gated K+ Currents in Human Cardiac Fibroblasts through the Protein Kinase G and Protein Kinase A Pathways but Not through S-Nitrosylation

  • Hyemi Bae,
  • Jeongyoon Choi,
  • Young-Won Kim,
  • Donghee Lee,
  • Jung-Ha Kim,
  • Jae-Hong Ko,
  • Hyoweon Bang,
  • Taeho Kim and
  • Inja Lim

This study investigated the expression of voltage-gated K+ (KV) channels in human cardiac fibroblasts (HCFs), and the effect of nitric oxide (NO) on the KV currents, and the underlying phosphorylation mechanisms. In reverse transcription polymerase c...

  • Article
  • Open Access
22 Citations
3,807 Views
16 Pages

The Expression and Localisation of G-Protein-Coupled Inwardly Rectifying Potassium (GIRK) Channels Is Differentially Altered in the Hippocampus of Two Mouse Models of Alzheimer’s Disease

  • Rocío Alfaro-Ruiz,
  • Alejandro Martín-Belmonte,
  • Carolina Aguado,
  • Félix Hernández,
  • Ana Esther Moreno-Martínez,
  • Jesús Ávila and
  • Rafael Luján

14 October 2021

G protein-gated inwardly rectifying K+ (GIRK) channels are the main targets controlling excitability and synaptic plasticity on hippocampal neurons. Consequently, dysfunction of GIRK-mediated signalling has been implicated in the pathophysiology of A...

  • Article
  • Open Access
5 Citations
1,728 Views
16 Pages

Dual-Port Six-Band Rectenna with Enhanced Power Conversion Efficiency at Ultra-Low Input Power

  • Shihao Sun,
  • Yuchao Wang,
  • Bingyang Li,
  • Hanyu Xue,
  • Cheng Zhang,
  • Feng Xu and
  • Chaoyun Song

21 November 2024

In this paper, a novel topology and method for designing a multi-band rectenna is proposed to improve its RF-DC efficiency. The rectifier achieves simultaneous rectification using both series and parallel configurations by connecting two branches to...

  • Article
  • Open Access
7 Citations
6,577 Views
33 Pages

25 August 2021

Three-phase three-level unidirectional rectifiers are among the most adopted topologies for general active rectification, achieving an excellent compromise between cost, complexity and overall performance. The unidirectional nature of these rectifier...

  • Article
  • Open Access
4 Citations
4,547 Views
18 Pages

A High-Efficiency Piezoelectric Energy Harvesting and Management Circuit Based on Full-Bridge Rectification

  • Shuhan Liu,
  • Suhao Chen,
  • Wei Gao,
  • Jiabin Zhang,
  • Dacheng Xu,
  • Fang Chen,
  • Zhenghao Lu and
  • Xiaopeng Yu

This paper presents a high-efficiency piezoelectric energy harvesting and management circuit utilizing a full-bridge rectifier (FBR) designed for powering wireless sensor nodes. The circuit comprises a rectifier bridge, a fully CMOS-based reference s...

  • Article
  • Open Access
6 Citations
3,003 Views
13 Pages

19 February 2024

Rectenna is the key component in radio-frequency circuits for receiving and converting electromagnetic waves into direct current. However, it is very challenging for the conventional semiconductor diode switches to rectify high-frequency signals for...

  • Article
  • Open Access
47 Citations
7,724 Views
13 Pages

5 February 2019

This work addresses the design and implementation of a broadband differential rectifier (DR) combined with an Archimedean spiral dipole antenna (ASDA) for wireless power harvesting at low incident power densities below 200 μ W/cm 2 . T...

  • Article
  • Open Access
432 Views
14 Pages

17 December 2025

Wireless power transfer via RF/microwave rectifiers has emerged as a sustainable solution to the energy requirements of low-power devices. In this study, a novel four-parallel-shunt-diode ultra-wideband rectifier is proposed to enable wireless power...

  • Article
  • Open Access
3 Citations
3,040 Views
11 Pages

25 October 2024

A novel 2.4 GHz high-efficiency rectifier circuit suitable for working under very-low-input electromagnetic (EM) power conditions (−20 to −10 dBm) is proposed for typical indoor power harvesting. The circuit features a SMS7630 Schottky di...

  • Article
  • Open Access
2 Citations
2,446 Views
13 Pages

Design and Optimization of Microfluidic Vortex Diode

  • Krzysztof Tadyszak,
  • Alessandro Jäger,
  • Jiří Pánek and
  • Martin Hrubý

The performed research presents modeling results for designing microfluidic vortex diodes. These devices rectify fluid flow and can be used in many applications on micro and macro scales. The modeling, utilizing computational fluid dynamics (CFD) wit...

  • Article
  • Open Access
2 Citations
3,935 Views
19 Pages

13 February 2021

In this paper, a new way to mitigate the current interactions is proposed. The problem of current interactions arises when a modular three-phase (3-phase) rectifier (three single-phase modules) with boost converter for power factor correction (PFC) i...

  • Article
  • Open Access
20 Citations
5,725 Views
14 Pages

8 November 2021

In this work toward a sustainable operation of a self-powered wireless sensor, we investigated a multiband Wi-Fi/3G/4G/5G energy harvester based on a novel wideband circularly polarized antenna, a quadplexer, and rectifiers at four corresponding band...

  • Article
  • Open Access
8 Citations
4,187 Views
17 Pages

CMOS Radio Frequency Energy Harvester (RFEH) with Fully On-Chip Tunable Voltage-Booster for Wideband Sensitivity Enhancement

  • Yizhi Li,
  • Jagadheswaran Rajendran,
  • Selvakumar Mariappan,
  • Arvind Singh Rawat,
  • Sofiyah Sal Hamid,
  • Narendra Kumar,
  • Masuri Othman and
  • Arokia Nathan

4 February 2023

Radio frequency energy harvesting (RFEH) is one form of renewable energy harvesting currently seeing widespread popularity because many wireless electronic devices can coordinate their communications via RFEH, especially in CMOS technology. For RFEH,...

  • Article
  • Open Access
15 Citations
6,027 Views
20 Pages

Codon Harmonization of a Kir3.1-KirBac1.3 Chimera for Structural Study Optimization

  • Evan Van Aalst,
  • Maryam Yekefallah,
  • Anil K. Mehta,
  • Isaac Eason and
  • Benjamin Wylie

10 March 2020

The expression of functional, folded, and isotopically enriched membrane proteins is an enduring bottleneck for nuclear magnetic resonance (NMR) studies. Indeed, historically, protein yield optimization has been insufficient to allow NMR analysis of...

  • Article
  • Open Access
8 Citations
5,577 Views
14 Pages

Analysis of the Optimum Gain of a High-Pass L-Matching Network for Rectennas

  • Manel Gasulla,
  • Josep Jordana,
  • Francesc-Josep Robert and
  • Jordi Berenguer

25 July 2017

Rectennas, which mainly consist of an antenna, matching network, and rectifier, are used to harvest radiofrequency energy in order to power tiny sensor nodes, e.g., the nodes of the Internet of Things. This paper demonstrates for the first time, the...

  • Article
  • Open Access
2 Citations
1,788 Views
14 Pages

THz detection in a silicon structure can be an effective instrument not only for image detection, and material and gas sensing, but also for communications. Next-generation 6G communications assume the possibility of achieving a large-band transmissi...

  • Article
  • Open Access
2 Citations
1,649 Views
13 Pages

Selective Inhibition of Pulmonary Vein Excitability by Constitutively Active GIRK Channels Blockade in Rats

  • Ian Findlay,
  • Côme Pasqualin,
  • Angèle Yu,
  • Véronique Maupoil and
  • Pierre Bredeloux

4 September 2023

Pulmonary veins (PV) are the main source of ectopy, triggering atrial fibrillation. This study investigated the roles of G protein-coupled inwardly rectifying potassium (GIRK) channels in the PV and the left atrium (LA) of the rat. Simultaneous intra...

  • Article
  • Open Access
13 Citations
4,146 Views
19 Pages

20 May 2020

A nonlinear sliding-mode controller for a three-phase converter, utilized in plug-in electric vehicles (PEVs), is proposed in this paper. The proposed controller enables the utilized converter to perform multiple functions during different operating...

  • Article
  • Open Access
5 Citations
3,779 Views
19 Pages

24 January 2024

This paper presents the design of a bidirectional wireless power and information transfer system. The wireless information transfer is based on near-field technology, utilizing communication coils integrated into power transfer coils. Compared with c...

  • Article
  • Open Access
21 Citations
4,314 Views
12 Pages

Classification of Geometric Forms in Mosaics Using Deep Neural Network

  • Mridul Ghosh,
  • Sk Md Obaidullah,
  • Francesco Gherardini and
  • Maria Zdimalova

18 August 2021

The paper addresses an image processing problem in the field of fine arts. In particular, a deep learning-based technique to classify geometric forms of artworks, such as paintings and mosaics, is presented. We proposed and tested a convolutional neu...

  • Review
  • Open Access
10 Citations
8,434 Views
13 Pages

The Relevance of GIRK Channels in Heart Function

  • Ana Campos-Ríos,
  • Lola Rueda-Ruzafa and
  • José Antonio Lamas

9 November 2022

Among the large number of potassium-channel families implicated in the control of neuronal excitability, G-protein-gated inwardly rectifying potassium channels (GIRK/Kir3) have been found to be a main factor in heart control. These channels are activ...

  • Article
  • Open Access
11 Citations
6,370 Views
14 Pages

Integration of Carbon Nanotubes in Microsystems: Local Growth and Electrical Properties of Contacts

  • Tormod B. Haugen,
  • Bao Q. Ta,
  • Einar Halvorsen,
  • Nils Hoivik and
  • Knut E. Aasmundtveit

24 July 2013

Carbon nanotubes (CNTs) have been directly grown onto a silicon microsystem by a local synthesis method. This method has potential for wafer-level complimentary metal-oxide-semiconductor (CMOS) transistor-compatible integration of CNTs into more com...

  • Article
  • Open Access
3 Citations
2,270 Views
12 Pages

Vasodilation and Blood Pressure-Lowering Effect of 3-Demethyl-2-Geranyl-4-Prenylbellidifoline, a Xanthone Obtained from Garcinia achachairu, in Hypertensive Rats

  • Luísa Nathália Bolda Mariano,
  • Rita de Cássia Vilhena da Silva,
  • Rivaldo Niero,
  • Valdir Cechinel Filho,
  • José Eduardo da Silva-Santos and
  • Priscila de Souza

15 February 2024

3-demethyl-2-geranyl-4-prenylbellidifoline (DGP), a natural xanthone isolated from Garcinia achachairu, has previously demonstrated remarkable diuretic and renal protective actions. The present study expands its actions on the cardiovascular system b...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,231 Views
14 Pages

From 32 nm to TFET Technology: New Perspectives for Ultra-Scaled RF-DC Multiplier Circuits

  • Lionel Trojman,
  • Eduardo Holguin,
  • Marco Villegas,
  • Luis-Miguel Procel and
  • Ramiro Taco

10 February 2022

In this present work, different Cross-Coupled Differential Drive (CCDD) CMOS bridge rectifiers are designed using either 32 nm or Tunnel-FET (TFET) technology. Commercial PDK has been used for the 32 nm technology, while lookup tables (LUT) resulting...

  • Perspective
  • Open Access
40 Citations
5,801 Views
16 Pages

Plasmonic Field-Effect Transistors (TeraFETs) for 6G Communications

  • Michael Shur,
  • Gregory Aizin,
  • Taiichi Otsuji and
  • Victor Ryzhii

27 November 2021

Ever increasing demands of data traffic makes the transition to 6G communications in the 300 GHz band inevitable. Short-channel field-effect transistors (FETs) have demonstrated excellent potential for detection and generation of terahertz (THz) and...

  • Article
  • Open Access
6 Citations
4,568 Views
15 Pages

Protection against Ischemic Heart Disease: A Joint Role for eNOS and the KATP Channel

  • Paolo Severino,
  • Andrea D’Amato,
  • Massimo Mancone,
  • Alberto Palazzuoli,
  • Marco Valerio Mariani,
  • Silvia Prosperi,
  • Vincenzo Myftari,
  • Carlo Lavalle,
  • Giovanni Battista Forleo and
  • Francesco Fedele
  • + 8 authors

Genetic susceptibility may influence ischemic heart disease (IHD) predisposition and affect coronary blood flow (CBF) regulation mechanisms. The aim of this study was to investigate the association among single nucleotide polymorphisms (SNPs) of gene...

  • Article
  • Open Access
32 Citations
12,739 Views
38 Pages

Harvesting Systems for RF Energy: Trends, Challenges, Techniques, and Tradeoffs

  • Surajo Muhammad,
  • Jun Jiat Tiang,
  • Sew Kin Wong,
  • Ali H. Rambe,
  • Ismahayati Adam,
  • Amor Smida,
  • Mohamed Ibrahim Waly,
  • Amjad Iqbal,
  • Adamu Saidu Abubakar and
  • Mohd Najib Mohd Yasin

The RFEH design challenges can be broadly classified into overall radio frequency direct current (RF-to-DC) power conversion efficiency (PCE), form factor, operational bandwidth (BW), and compactness. A detailed overview of the essential components o...

  • Review
  • Open Access
22 Citations
11,013 Views
35 Pages

Advancements and Challenges in Antenna Design and Rectifying Circuits for Radio Frequency Energy Harvesting

  • Martins Odiamenhi,
  • Haleh Jahanbakhsh Basherlou,
  • Chan Hwang See,
  • Naser Ojaroudi Parchin,
  • Keng Goh and
  • Hongnian Yu

23 October 2024

The proliferation of smart devices increases the demand for energy-efficient, battery-free technologies essential for sustaining IoT devices in Industry 4.0 and 5G networks, which require zero maintenance and sustainable operation. Integrating radio...

  • Article
  • Open Access
18 Citations
5,404 Views
19 Pages

19 February 2022

This paper proposes a single-stage AC-DC rectifier with power factor correction (PFC), high-frequency isolation and bidirectional power conversion capability for on-board battery charger (OBC) applications. The proposed converter is based on the inte...

  • Article
  • Open Access
7 Citations
3,628 Views
15 Pages

This paper investigates the potential of the emerging gallium nitride (GaN) high-electron mobility transistors (HEMT) power devices to meet certain power conversion challenges. The advantages of utilizing GaN HEMT transistors in a high-frequency, hig...

  • Review
  • Open Access
7 Citations
3,166 Views
14 Pages

Relevance of KCNJ5 in Pathologies of Heart Disease

  • Karisa M. Meyer,
  • Nipun Malhotra,
  • Jung seo Kwak and
  • Mona El Refaey

Abnormalities in G-protein-gated inwardly rectifying potassium (GIRK) channels have been implicated in diseased states of the cardiovascular system; however, the role of GIRK4 (Kir3.4) in cardiac physiology and pathophysiology has yet to be completel...

  • Article
  • Open Access
1 Citations
3,602 Views
15 Pages

Exploiting Net Connectivity in Legalization and Detailed Placement Scenarios

  • Antonios Dadaliaris,
  • George Kranas,
  • Panagiotis Oikonomou,
  • George Floros and
  • Michael Dossis

20 April 2022

Standard-cell placement is the fundamental step in a typical VLSI/ASIC design flow. Its result, paired with the outcome of the routing procedure can be the decisive factor in rendering a design manufacturable. Global placement generates an optimized...

  • Article
  • Open Access
2 Citations
1,536 Views
13 Pages

Flexible Receiver Antenna Prepared Based on Conformal Printing and Its Wearable System

  • Qian Zhu,
  • Wenjie Zhang,
  • Wencheng Zhu,
  • Chao Wu and
  • Jianping Shi

18 July 2025

Microwave energy is ideal for wearable devices due to its stable wireless power transfer capabilities. However, rigid receiving antennas in conventional RF energy harvesters compromise wearability. This study presents a wearable system using a flexib...

  • Article
  • Open Access
1,992 Views
26 Pages

Organic Heterostructures with Dendrimer Based Mixed Layer for Electronic Applications

  • Oana Rasoga,
  • Anne Lutgarde Djoumessi Yonkeu,
  • Carmen Breazu,
  • Marcela Socol,
  • Nicoleta Preda,
  • Florin Stanculescu,
  • Anca Stanculescu and
  • Emmanuel Iwuoha

1 September 2024

Recently, much research has focused on the search for new mixed donor–acceptor layers for applications in organic electronics. Organic heterostructures with layers based on the generation 1 poly(propylene thiophenoimine) (G1PPT) dendrimer, N,N&...

  • Systematic Review
  • Open Access
1 Citations
3,929 Views
31 Pages

Association between Genotype and the Glycemic Response to an Oral Glucose Tolerance Test: A Systematic Review

  • Sandra Bayer,
  • Anna Reik,
  • Lena von Hesler,
  • Hans Hauner and
  • Christina Holzapfel

30 March 2023

The inter-individual variability of metabolic response to foods may be partly due to genetic variation. This systematic review aims to assess the associations between genetic variants and glucose response to an oral glucose tolerance test (OGTT). Thr...

  • Article
  • Open Access
3 Citations
1,187 Views
10 Pages

Polymorphisms of KCNJ6 Gene and Their Correlation with Immune Indicators in Yaks (Bos grunniens)

  • Wenwen Ren,
  • Xiaoming Ma,
  • Daoning Yu,
  • Xiaoyun Wu,
  • Yongfu La,
  • Xian Guo,
  • Min Chu,
  • Ping Yan,
  • Xianyong Lan and
  • Chunnian Liang

10 December 2024

Yaks are crucial to local herders’ economy and agriculture. However, several diseases pose a significant threat to the health of yaks and cause substantial economic losses for herders. Therefore, studying the immune indicators and breeding of y...

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