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Articles 1 - 30 of 446
Full-Text Articles in Engineering
Numerical Green's Function-Based Method For Modeling Radiated Emission From Pcbs In Shielding Enclosures, Zi An Wang, Li (Lijun) Jun Jiang, Jun Fa Mao, Ping Li
Numerical Green's Function-Based Method For Modeling Radiated Emission From Pcbs In Shielding Enclosures, Zi An Wang, Li (Lijun) Jun Jiang, Jun Fa Mao, Ping Li
Electrical and Computer Engineering Faculty Research & Creative Works
Due to stringent electromagnetic compatibility (EMC) regulations, all electronic devices need to go through rigorous radiated emission tests before launching to market. Thus, efficient, accurate, and cheap characterization approaches are quite of interest. Instead of utilizing the time-consuming and expensive direct far-field measurement, in this work, a novel methodology on the basis of numerical Green's function (NGF) is proposed to acquire the parasitic EM emissions from PCBs placed in a shielding enclosure with ventilation slots. Referring to Schelkunoff's equivalence principle, the whole modeling procedure can be decomposed into two steps in order to obtain the emissions in the entire space. …
Temperature And Strain Sensing With Hybrid Interferometer, Lashari Ghulam Abbas, Zhou Ai, Farhan Mumtaz, Atta Muhammad, Yutang Dai, Rashda Parveen
Temperature And Strain Sensing With Hybrid Interferometer, Lashari Ghulam Abbas, Zhou Ai, Farhan Mumtaz, Atta Muhammad, Yutang Dai, Rashda Parveen
Electrical and Computer Engineering Faculty Research & Creative Works
A hybrid interferometer for simultaneous measurement of strain and temperature is proposed and investigated experimentally. This hybrid design is composed of Fabry-Perot interferometer (FPI) and Michelson Interferometer (MI) cascaded with each other. It is developed by fusion splicing a single mode fiber (SMF), a multimode fiber (MMF), a dual side hole fiber (DSHF), a hollow core fiber (HCF) and a tapered-SMF. The tapered SMF was inserted into the HCF to form a reflection mirror for the FPI. The maximum temperature and strain sensitivity of the hybrid interferometer achieved through experiments is 11.6 pm/°C and 6.8 pm/mu varepsilon , respectively. The …
Approaching The Fundamental Limit Of Orbital-Angular-Momentum Multiplexing Through A Hologram Metasurface, Shuai S.A. Yuan, Jie Wu, Menglin L.N. Chen, Zhihao Lan, Liang Zhang, Sheng Sun, Zhixiang Huang, Xiaoming Chen, Shilie Zheng, Li (Lijun) Jun Jiang, Xianmin Zhang, Wei E.I. Sha
Approaching The Fundamental Limit Of Orbital-Angular-Momentum Multiplexing Through A Hologram Metasurface, Shuai S.A. Yuan, Jie Wu, Menglin L.N. Chen, Zhihao Lan, Liang Zhang, Sheng Sun, Zhixiang Huang, Xiaoming Chen, Shilie Zheng, Li (Lijun) Jun Jiang, Xianmin Zhang, Wei E.I. Sha
Electrical and Computer Engineering Faculty Research & Creative Works
Establishing and approaching the fundamental limit of orbital-angular-momentum (OAM) multiplexing are necessary and increasingly urgent for current multiple-input multiple-output research. In this work, we elaborate the fundamental limit in terms of independent scattering channels (or the degrees of freedom of scattered fields) through angular-spectral analysis, in conjunction with a rigorous Green's function method. The scattering-channel limit is universal for arbitrary spatial-mode multiplexing, which is launched by a planar electromagnetic device, such as antenna, metasurface, etc., with a predefined physical size. As a proof of concept, we demonstrate both theoretically and experimentally the limit by a phase-only metasurface hologram that transforms …
Machine Learning Identifies Liquids Employing A Simple Fiber-Optic Tip Sensor, Wassana Naku, Chen Zhu, Anand K. Nambisan, Rex E. Gerald, Jie Huang
Machine Learning Identifies Liquids Employing A Simple Fiber-Optic Tip Sensor, Wassana Naku, Chen Zhu, Anand K. Nambisan, Rex E. Gerald, Jie Huang
Electrical and Computer Engineering Faculty Research & Creative Works
We proposed an extremely simple fiber-optic tip sensor system to identify liquids by combining their corresponding droplet evaporation events with analyses using machine learning techniques. Pendant liquid droplets were suspended from the cleaved endface of a single-mode fiber during the experiment. The optical fiber-droplet interface and the droplet-air interface served as two partial reflectors of an extrinsic Fabry-Perot interferometer (EFPI) with a liquid droplet cavity. As the liquid pendant droplet evaporated, its length diminished. A light source can be used to observe the effective change in the net reflectivity of the optical fiber sensor system by observing the resulting optical …
Acer Negundo, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Acer Negundo, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Liriodendron Tulipifera, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Liriodendron Tulipifera, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Salix Caroliniana, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Salix Caroliniana, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Amelanchier_Laevis, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Amelanchier_Laevis, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Catalpa_Speciosa, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Catalpa_Speciosa, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Daphne_Mezereum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Daphne_Mezereum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Fraxinus_Pennsylvanica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Fraxinus_Pennsylvanica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Lonicera_Henryi, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Lonicera_Henryi, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Malus_Baccata, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Malus_Baccata, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Ostrya_Virginiana, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Ostrya_Virginiana, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Robinia_Pseudacacia, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Robinia_Pseudacacia, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Sorbus_Domestica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Sorbus_Domestica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Taxodium_Distichum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Taxodium_Distichum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Viburnum_Farreri, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Viburnum_Farreri, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Alnus_Glutinosa, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Alnus_Glutinosa, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Betula_Papyrifera, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Betula_Papyrifera, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Lonicera_Involucrata, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Lonicera_Involucrata, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Quercus_Petraea, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Quercus_Petraea, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Abies Nordmanniana, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Abies Nordmanniana, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Acer Ginnala, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Acer Ginnala, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Acer Monspessulanum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Acer Monspessulanum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Acer Palmatum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Acer Palmatum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Aesculus Chinensis, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Aesculus Chinensis, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Aesculus Hippocastanum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Aesculus Hippocastanum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Amelanchier Ovalis, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Amelanchier Ovalis, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.
Betula Lenta, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Betula Lenta, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar
Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images
No abstract provided.