Results 61 to 70 of about 1,044 (259)

Wearable textile antennas: investigation on material variants, fabrication methods, design and application

Fashion and Textiles
With the ongoing miniaturization of wireless devices, the importance of wearable textiles in the antenna segment has increased significantly in recent years. Due to the widespread utilization of wireless body sensor networks for healthcare and ubiquitous
Verena Marterer, Michaela Radouchová, Radek Soukup, Susanne Hipp, Tomáš Blecha   +4 more
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Analysis of Circular Polarization of Cylindrically Bent Microstrip Antennas

International Journal of Antennas and Propagation, 2012
When circularly polarized (CP) microstrip antennas are bent, the polarization becomes elliptical. We present a simple model that describes the phenomenon. The two linear modes present in a CP patch are modeled separately and added together to produce CP.
Tiiti Kellomäki
doaj   +1 more source

A Wearable Textile RFID Tag Based on an Eighth-Mode Substrate Integrated Waveguide Cavity

IEEE Access, 2020
A novel wearable textile Radio Frequency Identification (RFID) tag based on an eighth-mode substrate integrated waveguide cavity is presented. Antenna size reduction for effective operation in the [865-870]-MHz RFID UHF band is obtained by exploiting the
Giovanni A. Casula, Giorgio Montisci, Hendrik Rogier   +2 more
doaj   +1 more source

Flexible Ag2Se‐Based Thermoelectrics: Fundamentals, Processing, and Device Applications

Advanced Materials, EarlyView.
Ag2Se‐based thermoelectrics are reviewed from fundamental transport mechanisms to flexible device integration. Crystal structure, defect chemistry, and band features are correlated with performance optimization strategies and scalable fabrication routes.
Jie Qin, Yuchen Yang, Huangshui Ma, Yong Du, Min Hong, Qinfei Ke   +5 more
wiley   +1 more source

Investigation of Flexible Textile Antennas and AMC Reflectors

International Journal of Antennas and Propagation, 2012
In this paper, two different methods for fabric characterization are presented: a single frequency method and a broadband method. Felt and denim fabrics are characterized, and patch antennas are designed using these substrates to test both methods ...
M. Mantash, A.-C. Tarot, S. Collardey, K. Mahdjoubi   +3 more
doaj   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

UWB Wearable Textile Antenna

Jurnal Teknologi, 2012
In this work, UWB planer monopole antennas with partial ground plane are designed, fabricated andpresented. The substrate of the designed antennas are made from different types of substrate fabricmaterials (flannel and jeans) while the radiating element and ground plane are made from copper selfadhesivesheet.
Mai A. R. Osman, M. K. A. Rahim, N. A. Samsuri, M. K. Elbasheer, M. E. Ali   +4 more
openaire   +2 more sources

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

Advanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang, Ye Yuan, Yuxiu Sun, Fei Shi, Chenyang Song, Weifan Wang, Qinghua Li, Menglong Sheng, Zhihua Qiao, Jingwei Hou, Anthony K. Cheetham, Zhi Wang   +11 more
wiley   +1 more source

An Overview of Electromagnetic Band-Gap Integrated Wearable Antennas

IEEE Access, 2020
The recent advancement in the wireless technology has led to the advent of wearable antennas. These antennas are utilized for Wireless Body Area Networks (WBANs) purposes such as health-care, military sportive activities and identification systems ...
Adel Y. I. Ashyap, Samsul Haimi Bin Dahlan, Zuhairiah Zainal Abidin, Muhammad Inam Abbasi, Muhammad Ramlee Kamarudin, Huda A. Majid, Muhammad Hashim Dahri, Mohd Haizal Jamaluddin, Akram Alomainy   +8 more
doaj   +1 more source