Results 71 to 80 of about 29,736 (309)

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

Advanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya, Baliana Shani, Isaac Holmes‐Gentle, Gerardo T Martinez, Martyn McLachlan, Nicola Seriani, Ludmilla Steier   +6 more
wiley   +1 more source

Angular Scan Enhancement of Ka-Band Circularly Polarized Phased Array Using Dielectric Dome

IEEE Access
This paper introduces a dielectric dome designed to enhance the angular scan of a circularly polarized phased array antenna at 29 GHz, while reducing broadside loss. The dome was created using a straightforward calculation-based approach. An $8\times 8$
Ebenezer Tawiah Ashong, Van Thang Nguyen, Jae-Young Chung   +2 more
doaj   +1 more source

Analysis of a Waveguide-Fed Metasurface Antenna [PDF]

, 2017
The metasurface concept has emerged as an advantageous reconfigurable antenna architecture for beam forming and wavefront shaping, with applications that include satellite and terrestrial communications, radar, imaging, and wireless power transfer.
Bowen, Patrick, Kundtz, Nathan B., Mancera, Laura Pulido, Smith, David R., Yurduseven, Okan   +4 more
core   +2 more sources

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Численное исследование характеристик ФАР на основе печатных квази-Яги излучающих элементов [PDF]

, 2012
У роботі представлені результати чисельного дослідження методом скінченних різниць у часовій області характеристик узгодження і випромінювання квазі-Ягі антени і ФАР розміром 11х11 елементів, побудованої на основі таких випромінювачів.
Dubrovka, F. F., Vydalko, O. E., Видалко, О. Е., Видалко, О. Є., Дубровка, Ф. Ф., Дубровка, Ф. Ф.   +5 more
core  

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

A phased array tracking antenna for vehicles [PDF]

An antenna system including antenna elements and a satellite tracking method is considered a key technology in implementing land mobile satellite communications.
Mano, Kazukiko, Matsunaga, Makoto, Ohmori, Shingo, Tanaka, Kenji, Tsuchiya, Makio   +4 more
core   +1 more source

Acousto-optic signal processors for transmission and reception of phased-array antenna signals [PDF]

, 1991
Novel acousto-optic processors for control and signal processing in phased-array antennas are presented. These processors can operate in both the antenna transmit and receive modes.
Psaltis, Demetri, Riza, Nabeel A.
core  

Implementation of Drug‐Induced Rhabdomyolysis and Acute Kidney Injury in Microphysiological System

Advanced Functional Materials, EarlyView.
A modular Muscle–Kidney proximal tubule‐on‐a‐chip integrates 3D skeletal muscle and renal proximal tubule tissues to model drug‐induced rhabdomyolysis and acute kidney injury. The coculture system enables dynamic tissue interaction, functional contraction monitoring, and quantification of nephrotoxicity, revealing drug side effect‐induced metabolic ...
Jaesang Kim, Zhuo Feng Lee, Gi‐Dong Sim, Sejoong Kim, Jessie S. Jeon   +4 more
wiley   +1 more source

Phased-array antenna phase control circuit using frequency multiplication [PDF]

, 1975
Circuit separates out, from multiplied signals, antenna element signals which have desirable phase angles and feeds them to appropriate antenna elements of phased array.
Caron, P. R., Mailloux, R. J.
core   +1 more source