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39 Results Found

  • Article
  • Open Access
262 Views
20 Pages

30 September 2026

Periplaneta americana (American cockroach) is a traditional medicinal insect rich in bioactive peptides and amino acids, yet its efficient and green extraction remains challenging due to its complex matrix and the thermolabile nature of its active co...

(This article belongs to the Special Issue Green Separation and Purification Technology: Second Edition)
  • Communication
  • Open Access
7 Citations
2,600 Views
10 Pages

Reconfigurable chiral metasurfaces with a dynamic polarization manipulation capability are highly required in optical integrated systems. In this paper, we simultaneously realized giant and large-range switchable asymmetric transmission (AT) and circ...

  • Article
  • Open Access
6 Citations
5,888 Views
16 Pages

Electromagnetic Wavefront Engineering by Switchable and Multifunctional Kirigami Metasurfaces

  • Yingying Wang,
  • Yang Shi,
  • Liangwei Li,
  • Zhiyan Zhu and ,
  • Muhan Liu,
  • Xiangyu Jin,
  • Haodong Li,
  • Guobang Jiang,
  • Jizhai Cui and
  • Shulin Sun
  • + 8 authors+ 3 authors

2 January 2025

Developing switchable and multifunctional metasurfaces is essential for high-integration photonics. However, most previous studies encountered challenges such as limited degrees of freedom, simple tuning of predefined functionality, and complicated c...

(This article belongs to the Section Nanophotonics Materials and Devices)
  • Article
  • Open Access
6 Citations
5,392 Views
10 Pages

Reversible Stability of Emulsion and Polymer Latex Controlled by Oligochitosan and CO2

  • Liang Li,
  • Na Guo,
  • Xiao Zhang,
  • Wen Ou and ,
  • Shengcai Yang,
  • Xin Su and
  • Yujun Feng
  • + 2 authors+ 0 author

6 December 2018

The addition of salt to a colloid solution ensures that emulsions can be easily separated into two phases and that polymer latexes can be coagulated. The switchable stability of emulsions and polymer latexes would improve the properties for their cur...

(This article belongs to the Collection Polysaccharides)
  • Review
  • Open Access
1 Citations
3,620 Views
38 Pages

Field-Effect Crystal Engineering in Proton–π-Electron Correlated Systems

  • Sachio Horiuchi,
  • Hiromi Minemawari,
  • Jun’ya Tsutsumi and
  • Shoji Ishibashi

19 August 2025

Dielectric crystals with switchable electric polarizations represent the key functional materials utilized for a broad range of practical applications. They allow for academically intriguing platforms, where the use of a strong external electric fiel...

(This article belongs to the Special Issue Polymorphism and Phase Transitions in Crystal Materials)
  • Feature Paper
  • Review
  • Open Access
54 Citations
9,422 Views
15 Pages

Photoaligning and Photopatterning: New LC Technology

  • Vladimir Chigrinov,
  • Jiatong Sun and
  • Xiaoqian Wang

20 April 2020

We demonstrate a physical model of photoalignment and photopatterning based on rotational diffusion in solid azo-dye nanolayers. We also highlight the new applications of photoalignment and photopatterning in display and photonics such as: (i) liquid...

(This article belongs to the Special Issue Micro and Nano Patterned Substrates for Liquid Crystal Alignment (Volume II))
  • Article
  • Open Access
10 Citations
4,473 Views
7 Pages

6 May 2021

Active lenses with focal tunable properties are highly desired in the modern imaging systems from the visible to the microwaves. In this paper, we demonstrate a terahertz (THz) lens with electrically switchable focal length. It is composed of a large...

(This article belongs to the Special Issue Liquid Crystals in China)
  • Article
  • Open Access
26 Citations
6,951 Views
29 Pages

Optimal Phase Load Balancing in Low Voltage Distribution Networks Using a Smart Meter Data-Based Algorithm

  • Gheorghe Grigoraș,
  • Bogdan-Constantin Neagu,
  • Mihai Gavrilaș,
  • Ion Triștiu and
  • Constantin Bulac

8 April 2020

In the electric distribution systems, the “Smart Grid” concept is implemented to encourage energy savings and integration of the innovative technologies, helping the distribution network operators (DNOs) in choosing the investment plans w...

(This article belongs to the Special Issue Mathematical Methods applied in Power Systems)
  • Article
  • Open Access
16 Citations
6,196 Views
16 Pages

Fluid Dynamics of Microgel-Covered Drops Reveal Impact on Interfacial Conditions

  • Miriam Faulde,
  • Eric Siemes,
  • Dominik Wöll and
  • Andreas Jupke

24 July 2018

Microgels are deformable polymer-networks with conspicuous properties. Their surface- activity associated with their switchability makes their application in liquid-liquid systems, such as extraction processes, particularly promising. For their appli...

(This article belongs to the Special Issue Microgels and Hydrogels at Interfaces)
  • Article
  • Open Access
1,237 Views
9 Pages

Dual-Wavelength Phase Transition Random Lasers with Switchable Modes

  • Ran Zhu,
  • Junhua Tong,
  • Xiaoyu Shi,
  • Chengyou Lin and
  • Tianrui Zhai

30 September 2025

Multi-wavelength random lasers with switchable modes have advantages in the fields of novel light source and information security. Here, we propose a dual-wavelength phase transition random laser, which can modulate lasing modes arbitrarily assisted...

(This article belongs to the Special Issue Organic Photonics: Organic Optical Functional Materials and Devices)
  • Communication
  • Open Access
5 Citations
3,638 Views
9 Pages

17 January 2024

Extensive research has been devoted to spiral phase contrast imaging because of its notable capacity to enhance the edges of both phase and amplitude objects. We demonstrate a setup using ferroelectric liquid crystal (FLC) fork grating (FG) to enable...

(This article belongs to the Special Issue Liquid Crystals in Photonics)
  • Article
  • Open Access
5 Citations
6,185 Views
20 Pages

A new 1.575 GHz active balun with a classic double-balanced Gilbert mixer for global navigation satellite systems is proposed herein. A simple, low-noise amplifier architecture is used with a center-tapped inductor to generate a differential signal e...

(This article belongs to the Special Issue RF/Mm-Wave Circuits Design and Applications)
  • Article
  • Open Access
4 Citations
4,215 Views
12 Pages

18 September 2025

A novel polarization-reconfigurable 1 × 8 array beam-scanning antenna based on a switchable vertically crossed balanced feed (VCBF) structure is presented. The designed VCBF structure can provide a stable 180° phase difference by utilizing...

(This article belongs to the Section Microwave and Wireless Communications)
  • Article
  • Open Access
560 Views
24 Pages

Magnonic systems present a compelling platform for quantum technology, owing to their strong capacity to form hybrid quantum systems via diverse couplings. To unlock the full potential of these systems, the engineering of flexible coupling between mu...

(This article belongs to the Special Issue Quantum Optics: Communication, Sensing, Computing, and Simulation)
  • Article
  • Open Access
3 Citations
2,424 Views
13 Pages

Phased Array Radar Resource Consumption Method Based on Phase-Switched Screen

  • Guoqing Hao,
  • Dejun Feng,
  • Junjie Wang,
  • Zimeng Zhou and
  • Ling Wang

5 September 2023

The consumption of phased array radar (PAR) resources affects the accuracy of its multi-target searching and tracking abilities. The jamming methods aimed at PAR involve deceptive jamming and comprehensive jamming strategies, but have the disadvantag...

(This article belongs to the Special Issue Advances in Electronics Technology)
  • Article
  • Open Access
20 Citations
5,473 Views
13 Pages

RF-MEMS Monolithic K and Ka Band Multi-State Phase Shifters as Building Blocks for 5G and Internet of Things (IoT) Applications

  • Jacopo Iannacci,
  • Giuseppe Resta,
  • Alvise Bagolini,
  • Flavio Giacomozzi and ,
  • Elena Bochkova,
  • Evgeny Savin,
  • Roman Kirtaev,
  • Alexey Tsarkov and
  • Massimo Donelli
  • + 4 authors+ 0 author

3 May 2020

RF-MEMS, i.e., Micro-Electro-Mechanical Systems (MEMS) for Radio Frequency (RF) passive components, exhibit interesting characteristics for the upcoming 5G and Internet of Things (IoT) scenarios, in which reconfigurable broadband and frequency-agile...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
1,192 Views
18 Pages

Multifunctional manipulation of optical fields with multiple degrees of freedom is essential for integrated photonic systems, yet achieving coordinated and independent control of polarization and phase remains challenging. Here, we propose a polariza...

(This article belongs to the Special Issue Optical Metasurfaces for Next-Generation Communication and Sensing)
  • Article
  • Open Access
1,404 Views
13 Pages

A Multi-Beam Phased Array Receiver Front-End with High Performance Ceramic SiP

  • Haifu Zhang,
  • Li-Xin Guo,
  • Shubo Dun,
  • Xiaoming Li and
  • Xiaolong Xu

14 January 2026

This paper presents a compact four-beam dual-polarized phased array with the high performance front-end module based on system-in-package (SiP) technology. By employing high-temperature co-fired ceramic (HTCC) substrates, the proposed design achieves...

(This article belongs to the Special Issue Celebration of 60th Anniversary of Moore's Law: The Significant Milestone in Micromachines)
  • Article
  • Open Access
4 Citations
3,402 Views
13 Pages

8 August 2024

This work demonstrates the use of an erbium-doped fiber amplifier (EDFA), a tunable bandpass filter (TBF), and a tunable delay line interferometer (TDLI) to form a ring laser that produces multi-format, multi-wavelength laser beams. The TDLI serves a...

(This article belongs to the Special Issue Advanced Optical-Fiber-Related Technologies)
  • Article
  • Open Access
6 Citations
4,411 Views
14 Pages

12 June 2025

This paper presents a novel, low-cost, portable impedance analyzer system designed for biopotential electrode evaluation and skin/electrode impedance measurement, critical for enhancing bioelectrical signal quality in healthcare applications. In cont...

(This article belongs to the Special Issue Integrated Sensor Systems for Medical Applications)
  • Article
  • Open Access
5 Citations
3,181 Views
18 Pages

13 June 2025

This paper presents a novel switchable branch-line coupler (BLC) designed to achieve variable phase shifts while maintaining a constant output power. The proposed design incorporates low stepwise phase shifters with incremental phase shifts of 10°...

(This article belongs to the Special Issue Antenna Technologies for Microwave and Millimeter-Wave Sensing)
  • Review
  • Open Access
373 Views
18 Pages

Temperature-Responsive Ionic Liquids: Polymer Structure, Phase Transition Behaviors and Applications

  • Lijun Guo,
  • Xiaoying Ji,
  • Jian Zhou,
  • Yanju Liu and ,
  • Wenhua Zhang,
  • Xin Huang,
  • Dongliang Li and
  • Bi Shi
  • + 3 authors+ 0 author

30 September 2026

Temperature-responsive ionic liquids (TRILs) represent a significant advance of smart functional materials with thermally tailorable phase transition behaviors. TRILs exhibit typical lower critical solution temperature (LCST) and upper critical solut...

(This article belongs to the Special Issue Advanced Polymers for Wastewater Treatment and Toxicant Removal, 3rd Edition)
  • Article
  • Open Access
9 Citations
3,118 Views
10 Pages

Meta-Optics-Empowered Switchable Integrated Mode Converter Based on the Adjoint Method

  • Yingli Ha,
  • Yinghui Guo,
  • Mingbo Pu,
  • Mingfeng Xu and ,
  • Xiong Li,
  • Xiaoliang Ma,
  • Fang Zou and
  • Xiangang Luo
  • + 3 authors+ 0 author

28 September 2022

Monolithic integrated mode converters with high integration are essential to photonic integrated circuits (PICs), and they are widely used in next-generation optical communications and complex quantum systems. It is expected that PICs will become mor...

(This article belongs to the Special Issue Nanophotonic and Optical Nanomaterials)
  • Article
  • Open Access
306 Views
27 Pages

A Dual-Frequency Switchable LCC-S-S and S-S-S Compensated Three-Coil Topology with CC/CV Outputs and ZVS Operation for WPT Applications

  • Yafei Chen,
  • Cunxin Wang,
  • Dadi Sun,
  • Kuncheng Wang and ,
  • Dong-Hee Kim and
  • Guangyao Li
  • + 1 author+ 0 author

19 September 2026

Compared with conventional two-coil wireless power transfer (WPT) systems, three-coil WPT systems with an intermediate relay coil offer superior performance in terms of transmission distance and tuning flexibility, making them suitable for a wider ra...

  • Article
  • Open Access
458 Views
16 Pages

12 October 2026

Programmable transmissive metasurfaces provide a flexible platform for dynamic electromagnetic wavefront manipulation, yet simultaneously achieving multiple functionalities with a low-complexity binary architecture remains challenging. In this work,...

(This article belongs to the Section Electrical, Electronics and Communications Engineering)
  • Review
  • Open Access
  • Best Paper Award
143 Citations
14,958 Views
134 Pages

A Comprehensive Survey on Fault Tolerance in Multiphase AC Drives, Part 1: General Overview Considering Multiple Fault Types

  • Alejandro G. Yepes,
  • Oscar Lopez,
  • Ignacio Gonzalez-Prieto,
  • Mario J. Duran and
  • Jesus Doval-Gandoy

14 March 2022

Multiphase drives offer enhanced fault-tolerant capabilities compared with conventional three-phase ones. Their phase redundancy makes them able to continue running in the event of faults (e.g., open/short-circuits) in certain phases. Moreover, their...

(This article belongs to the Special Issue Feature Papers to Celebrate the First Impact Factor of Machines)
  • Article
  • Open Access
3 Citations
2,098 Views
13 Pages

Self-Assembled TiN-Metal Nanocomposites Integrated on Flexible Mica Substrates towards Flexible Devices

  • Juncheng Liu,
  • Yizhi Zhang,
  • Hongyi Dou,
  • Benson Kunhung Tsai and ,
  • Abhijeet Choudhury and
  • Haiyan Wang
  • + 1 author+ 0 author

26 July 2024

The integration of nanocomposite thin films with combined multifunctionalities on flexible substrates is desired for flexible device design and applications. For example, combined plasmonic and magnetic properties could lead to unique optical switcha...

(This article belongs to the Special Issue Functional Nanomaterials in Sensing)
  • Article
  • Open Access
5 Citations
3,152 Views
22 Pages

Amphiphilic Comb Polymers as New Additives in Bicontinuous Microemulsions

  • Debasish Saha,
  • Karthik R. Peddireddy,
  • Jürgen Allgaier,
  • Wei Zhang and ,
  • Simona Maccarrone,
  • Henrich Frielinghaus and
  • Dieter Richter
  • + 2 authors+ 0 author

2 December 2020

It has been shown that the thermodynamics of bicontinuous microemulsions can be tailored via the addition of various different amphiphilic polymers. In this manuscript, we now focus on comb-type polymers consisting of hydrophobic backbones and hydrop...

(This article belongs to the Section Biology and Medicines)
  • Article
  • Open Access
14 Citations
3,064 Views
12 Pages

22 August 2022

Combining tunable properties and various functionalities into a single metamaterial structure has become a novel research hotspot and can be used to tackle great challenges. The multifunctional metamaterial structure that combines absorption, linear-...

(This article belongs to the Special Issue Nanophotonics and Optoelectronic Devices)
  • Article
  • Open Access
12 Citations
5,513 Views
10 Pages

Characterization of GAGG Doped with Extremely Low Levels of Chromium and Exhibiting Exceptional Intensity of Emission in NIR Region

  • Greta Inkrataite,
  • Gerardas Laurinavicius,
  • David Enseling,
  • Aleksej Zarkov and ,
  • Thomas Jüstel and
  • Ramunas Skaudzius
  • + 1 author+ 0 author

11 June 2021

Cerium and chromium co-doped gadolinium aluminum gallium garnets were prepared using sol-gel technique. These compounds potentially can be applied for NIR-LED construction, horticulture and theranostics. Additionally, magnesium and calcium ions were...

(This article belongs to the Special Issue Advances in Functional Inorganic Materials Prepared by Wet Chemical Methods)
  • Article
  • Open Access
9 Citations
4,156 Views
16 Pages

Switchable Dual-Wavelength Fiber Laser with Narrow-Linewidth Output Based on Parity-Time Symmetry System and the Cascaded FBG

  • Kaiwen Wang,
  • Bin Yin,
  • Chao Lv,
  • Yanzhi Lv and ,
  • Yiming Wang,
  • Hao Liang,
  • Qun Wang,
  • Shiyang Wang,
  • Fengjie Yu and
  • Songhua Wu
  • + 7 authors+ 2 authors

8 October 2024

In this paper, a dual-wavelength narrow-linewidth fiber laser based on parity-time (PT) symmetry theory is proposed and experimentally demonstrated. The PT-symmetric filter system consists of two optical couplers (OCs), four polarization controllers...

(This article belongs to the Special Issue Single Frequency Fiber Lasers and Their Applications)
  • Article
  • Open Access
22 Citations
3,326 Views
13 Pages

9 January 2021

Macrosurfactants consisting of water-soluble poly(vinylcaprolactam) (PVCap) or poly(vinylpyrrolidone) (PVP) segments with comparatively shorter hydrophobic poly(styrene) (PS) or poly(2,3,4,5,6-pentafluorostyrene) (PPFS) segments were used as kinetic...

(This article belongs to the Special Issue Kinetics and Thermodynamics of Gas Hydrate Formation and Decomposition)
  • Review
  • Open Access
1 Citations
1,224 Views
17 Pages

A Review of Transverse Mode Adaptive Control Based on Photonic Lanterns

  • Yao Lu,
  • Zongfu Jiang,
  • Zilun Chen,
  • Zhuruixiang Sun and
  • Tong Liu

28 November 2025

With the widespread application of fiber laser technology in industries, communications, medical fields, and beyond, the demand for controlling the spatial modes of their output beams has been increasingly growing. Traditional mode control methods ar...

(This article belongs to the Special Issue Photonic and Optoelectronic Devices and Systems, Third Edition)
  • Article
  • Open Access
743 Views
20 Pages

Urban intersection traffic signals play a crucial role in managing traffic flow and ensuring road safety. However, traditional actuated signal controllers make phase-switching decisions based on limited local traffic information, without leveraging n...

(This article belongs to the Special Issue Recent Advances in Vehicular Communication Based on Wireless Sensor Networks)
  • Article
  • Open Access
674 Views
42 Pages

Parameter Recovery in Noisy Tri-Periodic Horadam Sequences: A Fourier-Embedded Recurrence-Regularized Neural Estimator (RRNE)

  • Bahar Kuloğlu,
  • Hasan Gökbaş,
  • George A. Anastassiou,
  • Metin Zontul and
  • Seda Karateke

17 July 2026

This study investigates tri-periodic Horadam-type recurrence systems from both algebraic and computational perspectives. Algebraically, by adapting standard discrete Floquet-type and monodromy matrix viewpoints to the tri-periodic setting, the sequen...

(This article belongs to the Special Issue AI, Machine Learning and Optimization)
  • Article
  • Open Access
1 Citations
258 Views
25 Pages

8 October 2026

High-resolution power quality monitoring can support energy-saving actions in low-voltage installations by providing data for engineering decisions aimed at reducing unnecessary reactive power flow and associated network losses. This paper presents a...

(This article belongs to the Special Issue Power Quality Monitoring with Energy Saving Goals—2nd Edition)
  • Article
  • Open Access
325 Views
12 Pages

9 September 2026

SmNiO3 thin films on PMN-PT ferroelectric substrates enable electrically switchable strain engineering, an advantage over permanently fixed lattice-mismatch strain. However, strain-engineered resistive switching in SmNiO3 via ferroelectric substrates...

(This article belongs to the Special Issue Functional Oxide Thin Film and Application)
  • Review
  • Open Access
2 Citations
4,287 Views
22 Pages

Regulatory Landscapes of Bacterial DNA Methylation: Mechanism, Dynamics, and Detection

  • Jasleen Kaur Lamba,
  • Tejinder Kaur,
  • Roshani Jha,
  • Rama Kadamb and
  • Rajni Garg

4 May 2026

Epigenetics is a widely present mechanism for the modulation of gene expression without alterations in the underlying genetic sequence. Epigenetic signatures are significantly present in bacteria, with DNA methylation playing a key role in the modula...

  • Article
  • Open Access
311 Views
16 Pages

23 August 2026

Facing the dual challenges of energy shortage and environmental degradation, photocatalysis and electrocatalysis have emerged as key technologies for converting small molecules into value-added chemicals, yet their conflicting requirements on the ele...

(This article belongs to the Section Photocatalysis)