Results 81 to 90 of about 10,662,693 (288)

Non-Uniform Concentric Rings Design for Ultra-Wideband Arrays

Sensors, 2019
This paper presents the design of aperiodic concentric ring arrays for ultra-wide bandwidths (UW-ACRA). This design of ultra-wideband arrays considers the synthesis of concentric rings in two cases: 1) non-uniform spacing between rings with non-uniform ...
Marco A. Panduro, Alberto Reyna, David H. Covarrubias   +2 more
doaj   +1 more source

Nanometer Layer Coating to Lactose Particles for Optimization of Dexamethasone Pulmonary Delivery

Advanced Science, EarlyView.
Nanometer layer coating (NLC) was investigated and its mechanism illustrated by advanced characterization techniques. The effects and application for the inhalation of dexamethasone (DEX) were demonstrated through in vitro and in vivo evaluation. This approach increased DEX bioavailability and enabled the dose to be reduced to 1/30 of the intravenous ...
Qin Nie, Jiahe Liu, Xiangyu Zhao, Siying Yang, Han Sun, Bingqian Jia, Xiaohong Ren, Xintao Chen, Lixin Sun, Li Wu, Caifen Wang, Jiwen Zhang   +11 more
wiley   +1 more source

An improved RIME optimization algorithm and its application in linear antenna arrays side lobe level suppression [PDF]

AIP Advances
The pattern synthesis technique of antenna arrays has a wide range of applications in radar and communication systems, which is an important research direction in the field of smart antennas.
Yibo Wang, Yan Liu, Liang Dong, Anyong Liu, Zhuo Chen   +4 more
doaj   +1 more source

Bamboo‐Slip‐Inspired Conformal Reconfigurable Metasurfaces

Advanced Science, EarlyView.
Bamboo‐slip‐inspired conformal reconfigurable metasurface system. The structure is mainly composed of three parts, which are conformal metasurface, pattern reconfigurable antenna, and control components (such as Field Programmable Gate Array (FPGA)). Conformal metasurfaces draw inspiration from the design of ancient Chinese bamboo slips.
Qifan Li, Shaofeng Zhang, Qiang Feng, Dexiao Xia, Yajie Mu, Xiangjin Ma, Jiaqi Han, Haixia Liu, Guangyao Liu, Long Li   +9 more
wiley   +1 more source

Optimizing circular antenna arrays with artificial rabbits optimization for beam control and side lobe reduction

Discover Applied Sciences
Circular antenna arrays (CAA) are substantially utilized for numerous wireless applications such as beamforming, fifth generation (5G) communication, and Internet of Things (IoT) applications however, it is frequently challenging to retain the high ...
Sunil Kumar, Harbinder Singh, Avtar Singh   +2 more
doaj   +1 more source

The Effect of the Axial Plasma Electron Density Distribution on the Effective Length and Radiation Pattern of a Plasma Antenna

Plasma
This study investigates the axial electron density distribution in two plasma antenna configurations excited by a surface wave microwave discharge and its influence on the radiation pattern of antennas.
Nikolai N. Bogachev, Vyacheslav P. Stepin, Vsevolod I. Zhukov, Sergey E. Andreev, Dmitry M. Karfidov, Maksim S. Usachonak, Evgeny M. Konchekov, Namik G. Gusein-zade   +7 more
doaj   +1 more source

Design of Non-uniform Circular Antenna Arrays Using Firefly Algorithm for Side Lobe Level Reduction

, 2014
A design problem of non-uniform circular antenna arrays for maximum reduction of both the side lobe level (SLL) and first null beam width (FNBW) is dealt with. This problem is modeled as a simple optimization problem. The method of Firefly algorithm (FFA)
Gopi Ram, Rajib Kar, Sakti Prasad Ghoshal, Durbadal Mandal   +3 more
core   +1 more source

Topology‐Enabled Finite‐Band Absorption Framework Based on a Bioinspired Nested Dual‐Loop Architecture

Advanced Science, EarlyView.
A nuclear‐pore‐inspired nested dual‐loop architecture redistributes electromagnetic energy through coupled transport, confinement, and dissipation pathways. Integrated with Co/Fe3O4 dual‐magnetic composites and topology optimization, the 11‐mm‐thick absorber delivers continuous 2–40 GHz attenuation, raises finite‐band structural utilization to 82%, and
Shaokang Liu, Weicheng Liao, Pinchen Luo, Mengchen Jin, Tangming Yan, Xing Zhao, Qingshan Wang   +6 more
wiley   +1 more source

Single‐Dose TACE‐Like Injection of Sustained‐Release Panobinostat/IL‐12 Polymeric Microparticles is Effective in Preclinical Liver Cancer Models

Advanced Science, EarlyView.
A novel PLGA/PBAE polymer microparticle platform revolutionizes intermediate‐stage liver cancer treatment by co‐delivering panobinostat and IL‐12 via a single TACE‐like injection. This sustained‐release system overcomes tumor immunosuppression, triggers robust innate and adaptive immune responses, and establishes tertiary lymphoid structures ...
Hongzhe Yu, Ling Li, Sachin S. Surwase, Xin Ming M. Zhou, Hongtao Qian, Joel C. Sunshine, Florin M. Selaru, Jordan J. Green   +7 more
wiley   +1 more source

Recognition memory impairments in temporal lobe epilepsy: The contribution of recollection and metacognition [PDF]

, 2012
Temporal lobe epilepsy (TLE) is a complex neurological condition associated with a variety of memory problems. This thesis attempted to elucidate the nature and extent of memory impairments further in this clinical group by drawing on dual-process theory
Illman, Nathan Anthony
core   +3 more sources