Results 41 to 50 of about 298,889 (339)

Two-Timescale Hybrid Compression and Forward for Massive MIMO Aided C-RAN

, 2019
We consider the uplink of a cloud radio access network (C-RAN), where massive MIMO remote radio heads (RRHs) serve as relays between users and a centralized baseband unit (BBU). Although employing massive MIMO at RRHs can improve the spectral efficiency,
Chen, Xihan, Lau, Vincent, Liu, An, Yu, Wei, Zhao, Min-Jian   +4 more
core   +2 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Synthesis of electronically tunable multifunction biquad filter using voltage differencing differential input buffered amplifiers

ETRI Journal
Biquad filters are commonly used in analog circuits for various purposes in sig-nal processing and communication applications. We synthesize an analog active biquad filter with five types of voltage-mode filtering functions.
Sirigul Bunrueangsak, Winai Jaikla, Amornchai Chaichana, Piya Supavarasuwat, Surapong Siripongdee, Peerawut Suwanjan   +5 more
doaj   +1 more source

A Fractional-Order Transitional Butterworth-Butterworth Filter and Its Experimental Validation

IEEE Access, 2021
This paper introduces the generalization of the classical Transitional Butterworth-Butterworth Filter (TBBF) to the Fractional-Order (FO) domain. Stable rational approximants of the FO-TBBF are optimally realized.
Shibendu Mahata, Norbert Herencsar, David Kubanek, Rajib Kar, Durbadal Mandal, I. Cem Goknar   +5 more
doaj   +1 more source

Joint Transmit and Receive Filter Optimization for Sub-Nyquist Delay-Doppler Estimation

, 2018
In this article, a framework is presented for the joint optimization of the analog transmit and receive filter with respect to a parameter estimation problem. At the receiver, conventional signal processing systems restrict the two-sided bandwidth of the
Lenz, Andreas, Stein, Manuel S., Swindlehurst, A. Lee   +2 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Analysis and Design of M-Channel Hybrid Filter Bank With Digital Calibration

IEEE Access, 2018
Hybrid filter bank (HFB) is widely used in frequency-interleaved analog-to-digital converters, but traditional HFB structures suffer various degrees of imperfections. This paper presents a new-structure HFB based on power complementary pair. The proposed
Xiangyu Peng, Jingyu Li, Xiaotian Zhou, Qianqiang Lin, Zengping Chen   +4 more
doaj   +1 more source

Two techniques for digital filter design [PDF]

, 1970
Digital controllers, one using a special-purpose computer and the other using a combination of digital and analog techniques, are designed around /1/ computers that simulate the transfer function and interface with the system, and /2/ analog and digital ...
Carroll, C. C., Jones, J. W., Jr., Nagle, H. T., Jr.   +2 more
core   +1 more source

Channel Capacity under General Nonuniform Sampling [PDF]

, 2012
This paper develops the fundamental capacity limits of a sampled analog channel under a sub-Nyquist sampling rate constraint. In particular, we derive the capacity of sampled analog channels over a general class of time-preserving sampling methods ...
Chen, Yuxin, Eldar, Yonina C., Goldsmith, Andrea J.   +2 more
core   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source