Results 31 to 40 of about 362,427 (261)

Analisis Coverage Planning dan Coverage Prediction di Existing Network eNodeB Jaringan 4G di Daerah Operasional Yogyakarta dan Magelang

open access: yesTechne, 2018
Untuk meningkatkan kinerja jaringan 4G yang merupakan jaringan uji coba di Yogyakarta dan Magelang  maka harus dilakukan coverage planning pada daerah yang kurang optimal. Kurang optimalnya daerah ini dikarenakan cakupan dan kualitas Radio Frequency (RF)
Pilar Tiara Lelepadang   +2 more
doaj   +1 more source

Measurements of the CERN PS longitudinal resistive coupling impedance [PDF]

open access: yes, 2016
The longitudinal coupling impedance of the CERN PS has been studied in the past years in order to better understand collective effects which could produce beam intensity limitations for the LHC Injectors Upgrade project.
BIANCACCI, NICOLÒ   +5 more
core   +1 more source

Wideband RF photonic in-phase and quadrature-phase generation [PDF]

open access: yes, 2008
A photonic implementation of a practical broadband RF Hilbert transformer is demonstrated by using a four-tap transversal system. An almost ideal 90° phase shift with less than 3 dB of amplitude ripple has been achieved from 2.4 to 17.6 GHz. An efficient
Bui, L   +3 more
core   +1 more source

High stability amplifier [PDF]

open access: yes, 1983
An electrical RF signal amplifier for providing high temperature stability and RF isolation and comprised of an integrated circuit voltage regulator, a single transistor, and an integrated circuit operational amplifier mounted on a circuit board such ...
Adams, W. A., Reinhardt, V. S.
core   +1 more source

Molecular cancer prevention: Intercepting disease

open access: yesMolecular Oncology, EarlyView.
Oncological practice must evolve, from treating established tumours to proactive cancer interception before clinical manifestation. This will require mechanistic insight into tumour initiation, validated biomarkers of early disease development and redesigned clinical trials, enabling cancer interception to become a core pillar of oncology with the ...
Charlotte Grieco   +2 more
wiley   +1 more source

An All-Optical Ka-Band Microwave Long-Distance Dissemination System Based on an Optoelectronic Oscillator

open access: yesIEEE Photonics Journal, 2022
We proposed an all-optical Ka-band microwave long-distance dissemination system based on an optoelectronic oscillator (OEO). In this system, a single tone with high spectrum purity and low phase noise is excited by an injection-locked OEO, and ...
Kaiyu Zhang   +3 more
doaj   +1 more source

Faraday rotation measurement method and apparatus [PDF]

open access: yes, 1981
A method and device for measuring Faraday rotation of a received RF signal is described. A simultaneous orthogonal polarization receiver compensates for a 3 db loss due to splitting of a received signal into left circular and right circular polarization ...
Brockman, M. H.
core   +1 more source

Distributed localization of a RF target in NLOS environments

open access: yes, 2014
We propose a novel distributed expectation maximization (EM) method for non-cooperative RF device localization using a wireless sensor network. We consider the scenario where few or no sensors receive line-of-sight signals from the target. In the case of
Leng, Mei   +4 more
core   +1 more source

BMI‐1 modulation and trafficking during M phase in diffuse intrinsic pontine glioma

open access: yesFEBS Open Bio, EarlyView.
The schematic illustrates BMI‐1 phosphorylation during M phase, which triggers its translocation from the nucleus to the cytoplasm. In cycling cells, BMI‐1 functions within the PRC1 complex to mediate H2A K119 monoubiquitination. Following PTC596‐induced M phase arrest, phosphorylated BMI‐1 dissociates from PRC1 and is exported to the cytoplasm via its
Banlanjo Umaru   +6 more
wiley   +1 more source

Reference Receiver Based Digital Self-Interference Cancellation in MIMO Full-Duplex Transceivers

open access: yes, 2014
In this paper we propose and analyze a novel self-interference cancellation structure for in-band MIMO full-duplex transceivers. The proposed structure utilizes reference receiver chains to obtain reference signals for digital self-interference ...
Anttila, Lauri   +2 more
core   +1 more source

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