Results 71 to 80 of about 4,189,896 (296)

MmWave MIMO Hybrid Precoding Design Using Phase Shifters and Switches

, 2021
To reduce the number of phase shifters for analog precoding in millimeter wave massive multiple-input multiple-output communications, we investigate the hybrid use of expensive phase shifters and low-cost switches. Different from the existing fixed phase
Xianghao Yu, Yu, Xianghao, Qiang Liu, Geoffrey Ye Li, Liu, Qiang, Chenhao Qi, Qi, Chenhao, Li, Geoffrey Ye   +7 more
core   +1 more source

Physical Stability Analysis for Optical MEMS Phase Shifters

, 2018
Stability and switching performance of light force driven opto-mechanical phase shifters are examined and a formula determining the stability condition has been proposed for various structures.
KOCAMAN, SERDAR, Ozer, Yigit
core   +2 more sources

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Total ownership cost reduction case study: AEGIS radar phase shifters [PDF]

, 2006
Acquisition research (Graduate School of Business & Public Policy)The goal of this research is to provide a case study that captures the production and design processes and program management solutions used to reduce total ownership costs of AEGIS Radar
Wray W. Bridger, Ruiz, Mark D., Bridger, Wray W., Mark D. Ruiz   +3 more
core   +2 more sources

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

A Center-Fed Beam-Steerable Series Antenna Array With a Wide Matching Bandwidth

IEEE Open Journal of Antennas and Propagation
In this paper, a center-fed beam-steerable series antenna array is presented that has both a wide matching bandwidth and easy control. The proposed matched feeding network for the series array is composed of impedance transformers and voltage-controlled ...
Sungeun Kim, Haegwon Park, Byung-Wook Min   +2 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Design and Optimization of Highly Miniaturized Liquid Crystal Phase Shifters Based on Defected Ground Structures

IEEE Journal of Microwaves
This paper presents a fast and compact design method for planar liquid crystal (LC) phase shifters, using circuit models based on filter design principles.
Robin Neuder, Marc Spath, Martin Schubler, Alejandro Jimenez-Saez   +3 more
doaj   +1 more source