Results 41 to 50 of about 71,984 (297)

Millimeter Wave Real-Time Tracking and Imaging of Moving Objects Based on Virtual MIMO Array and State Vector Prediction

IEEE Access, 2023
Millimeter wave imaging systems are being rapidly applied to indoor security, industrial nondestructive evaluation and automotive radar systems. Millimeter wave real-time imaging is the ultimate goal of many applications.
Didi Xu, Weihua Yu, Bowu Wang, Songzhuo Liu   +3 more
doaj   +1 more source

Inhibitors of Helicobacter pylori protease HtrA found by "virtual ligand" screening combat bacterial invasion of epithelia [PDF]

, 2011
Background: The human pathogen Helicobacter pylori (H. pylori) is a main cause for gastric inflammation and cancer. Increasing bacterial resistance against antibiotics demands for innovative strategies for therapeutic intervention.
Löwer, Martin, Schneider, Gisbert, Petra Schneider, Hoy Benjamin, Löwer Martin, Martin Löwer, Tim Geppert, Geppert, Tim, Silja Wessler, Wessler Silja, Schneider, Petra, Geppert Tim, Gisbert Schneider, Benjamin Hoy, Hoy, Benjamin, Weßler, Silja, Schneider Petra, Schneider, Gisbert (Prof. Dr.), Schneider Gisbert   +18 more
core   +1 more source

Spontaneously broken technicolor and the dynamics of virtual vector technimesons

Physical Review D, 1993
We propose spontaneously breaking technicolor, thus liberating techniquarks and suppressing large resonance contributions to the electroweak $S$ parameter. The dynamics is modeled by a fermion bubble approximation to a single massive techni--gluon exchange potential. This contains a Nambu--Jona-Lasinio model with additional interactions.
Hill, Christopher T., Kennedy, Dallas C., Onogi, Tetsuya, Yu, Hoi--Lai   +3 more
openaire   +3 more sources

DOA estimation with extended sparse and parametric approach in multi-carrier MIMO HFSWR

The Journal of Engineering, 2019
To obtain a higher angle resolution of multiple-in multiple-out high-frequency surface wave radar (MIMO HFSWR) for direction of arrival (DOA) estimation with a limited number of antenna sensors, multiple working frequencies are proposed to enlarge the ...
Aihua Liu, Xin Zhang, Qiang Yang, Weibo Deng   +3 more
doaj   +1 more source

Fuzzy virtual ligands for virtual screening [PDF]

, 2009
A new method to bridge the gap between ligand and receptor-based methods in virtual screening (VS) is presented. We introduce a structure-derived virtual ligand (VL) model as an extension to a previously published pseudo-ligand technique [1]: LIQUID [2 ...
Löwer, Martin, Weisel, Martin, Y Tanrikulu, G Schneider, Tanrikulu, Yusuf, M Weisel, Schneider, Gisbert (Prof. Dr.), M Löwer   +7 more
core   +1 more source

Virtual Vector-Based FCS-MPC for NPC Three-Level Grid-Tied Inverter Without Weighting Factor of Neutral-Point Voltage Balancing

IEEE Access, 2022
The neutral-point clamped (NPC) inverter is widely used in energy conversion, but the unbalance of neutral-point voltage (NPV) will lead to imprecise control and the decline of power quality.
Nan Jin, Dongren Dai, Huan Xie, Jie Wu, Leilei Guo   +4 more
doaj   +1 more source

A Varied VSVM Strategy for Balancing the Neutral-Point Voltage of DC-Link Capacitors in Three-Level NPC Converters

Energies, 2015
In the research field of multilevel converters, three-level NPC (neutral-point-clamped) converters, which unfortunately may cause the deviation of the neutral-point voltage of DC-link capacitors, are widely discussed.
Shi Weng Gui, Zhen Jun Lin, Sheng Hua Huang   +2 more
doaj   +1 more source

Data-Driven Virtual Flow Rate Sensor Development for Leakage Monitoring at the Cradle Bearing in an Axial Piston Pump

Energies, 2022
The leakage of the tribological contact in axial piston pumps significantly impacts the pump efficiency. Leakage observations can be used to optimize the pump design and monitor the behavior of the tribological contact.
Minxing Liu, Garyeong Kim, Kai Bauckhage, Marcus Geimer   +3 more
doaj   +1 more source

Mitigating output DC current ripple in a three-phase current source rectifier using an optimized space vector modulation

Ho Chi Minh City Open University Journal of Science - Engineering and Technology
The mitigation of output DC ripple in three-phase current source rectifiers represents a significant design challenge, directly impacting the quality of the delivered power. To address this issue, this paper introduces a novel control framework based on
Minh Hoang Nguyen, Doan Khai Nguyen, Dang Long Hoang   +2 more
doaj   +1 more source

Power Factor Control Method Based on Virtual Capacitors for Three-Phase Matrix Rectifiers

IEEE Access, 2019
This paper proposes a novel input power factor control method based on a concept of virtual capacitors to provide unity input power factor for three-phase matrix rectifiers. The proposed algorithm introduces, at the input terminal of the matrix rectifier,
Jae-Chang Kim, Sangshin Kwak, Taehyung Kim   +2 more
doaj   +1 more source