Results 61 to 70 of about 359,797 (235)

APPLICATION OF DISTRIBUTED ANTENNA SYSTEMS FOR DETERMINATION OF RADIATION SOURCE COORDINATES WITH USE OF PHASE METHOD IN FRESNEL ZONE

Information and Telecommunication Sciences, 2017
Background. Talking about evolution of passive radar systems and multifunction antenna systems, it is necessary to acknowledge that distributed antenna systems (DAS) are supposed to be widely spread in the very near future in many areas of human activity,
Gleb Avdeyenko, Evgeniy Yakornov
doaj   +1 more source

2D shape classification and retrieval [PDF]

, 2005
We present a novel correspondence-based technique for efficient shape classification and retrieval. Shape boundaries are described by a set of (ad hoc) equally spaced points – avoiding the need to extract “landmark points”.
McNeill, Graham, Vijayakumar, S.
core   +1 more source

Topological phase in $1D$ topological Kondo insulator: $Z_{2}$ topological insulator, Haldane-like phase and Kondo breakdown

, 2017
We have simulated a half-filled $1D$ $p$-wave periodic Anderson model with numerically exact projector quantum Monte Carlo technique, and the system is indeed located in the Haldane-like state as detected in previous works on the $p$-wave Kondo lattice ...
Liu, Yu, Luo, Hong-Gang, Zhong, Yin
core   +1 more source

The effects of soil moisture, soil texture, and host orientation on the ability of Heterorhabditis bacteriophora (Rhabditida: Heterorhabditidae) to infect Galleria mellonella (Lepidoptera: Pyralidae) [PDF]

, 2018
Entomopathogenic nematodes (EPN) demonstrate potential as a biological control for soil dwelling insects. However, edaphic factors, such as soil moisture and texture impact the efficacy of EPN on a host. The objectives were to examine the effects of soil
Hartley, Suzanne M., Wallace, John R.
core   +3 more sources

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

Advanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid, Demeng Feng, Pournima Narayanan, Justin S. Edwards, Manchen Hu, Emma Belliveau, Minjeong Kim, Shenwei Yin, Sanket Deshpande, Chenghao Wan, Linda Pucurimay, David A. Czaplewski, Daniel N. Congreve, Mikhail A. Kats   +13 more
wiley   +1 more source

Measuring cosmic bulk flows with Type Ia Supernovae from the Nearby Supernova Factory [PDF]

, 2015
Context. Our Local Group of galaxies appears to be moving relative to the cosmic microwave background with the source of the peculiar motion still uncertain. While in the past this has been studied mostly using galaxies as distance indicators, the weight
Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Buton, C., Canto, A., Cellier-Holzem, F., Childress, M., Chotard, N., Copin, Y., Fakhouri, H. K., Feindt, U., Gangler, E., Guy, J., Kerschhaggl, M., Kim, A., Kowalski, M., Nordin, J., Nugent, P., Paech, K., Pain, R., Pecontal, E., Pereira, R., Perlmutter, S., Rabinowitz, D., Rigault, M., Runge, K., Saunders, C., Scalzo, R., Smadja, G., Tao, C., Thomas, R. C., Weaver, B. A., Wu, C.   +35 more
core   +2 more sources

Analysis of the Electrochemical Stability of Sulfide Solid Electrolyte Dry Films for Improved Dry‐Processed Solid‐State Batteries

Advanced Functional Materials, EarlyView.
An adapted processing for solvent‐free argyrodite solid electrolyte films based on insights into degradation mechanisms of the widely used binder polytetrafluoroethylene is presented. By adapting the dry film processing, long‐term cycling in Si||NMC pouch cells is demonstrated over more than 1000 cycles with a capacity retention of more than 80%, and ...
Maria Rosner, Sahin Cangaz, Felix Hippauf, Susanne Dörfler, Burak Aktekin, Thomas Meyer, Anja Henss, Thomas Abendroth, Holger Althues, Jürgen Janek, Stefan Kaskel   +10 more
wiley   +1 more source

Performance Analysis of BLE-5.1 Angle of Arrival Estimation Using Embedded Radiation Patterns on a 3 × 3 Uniform Rectangular Array

IEEE Access
The introduction of new Direction finding (DF) features in Bluetooth Low Energy (BLE) 5.1, has brought about new hardware design requirements for locators.
Ottavio Crisafulli, Nicolo Ivan Piazzese, Santi Concetto Pavone, Giuseppe Giammello, Giovanni Galvagna, Salvatore Pitrulli, Andrea Francesco Morabito, Loreto Di Donato, Michele Sardo, Gino Sorbello   +9 more
doaj   +1 more source

Domain‐Wall‐Free Sliding Ferroelectricity in Fully Commensurate 3R Transition Metal Dichalcogenide Bilayers

Advanced Functional Materials, EarlyView.
It is reported that the ferroelectric switching behavior of rhombohedral (3R) phase transition metal dichalcogenide (TMD) bilayers strongly depends on their domain structures. Single‐domain TMDs (SD‐TMDs) with domain‐wall‐free structures exhibit robust and stable polarization switching, whereas poly‐domain TMDs (PD‐TMDs) with randomly distributed ...
Ji‐Hwan Baek, Seong Chul Hong, Jinwoo Kim, Hyeongseok Lee, Hyun Woo Jeong, Kenji Watanabe, Takashi Taniguchi, Min Hyuk Park, Gwan‐Hyoung Lee   +8 more
wiley   +1 more source

Best Practices on High Frequency Radar Deployment and Operation for Ocean Current Measurement

Frontiers in Marine Science, 2020
High Frequency Radar (HFR) technology refers to land based remote sensing instruments capable of measuring surface currents and ocean waves at ranges up to 200 km or more.
Carlo Mantovani, Lorenzo Corgnati, Jochen Horstmann, Anna Rubio, Emma Reyes, Céline Quentin, Simone Cosoli, Jose Luis Asensio, Julien Mader, Annalisa Griffa   +9 more
doaj   +1 more source