22 papers · ranked by Valyu relevance
Qi Mao, Yong Xu, Jianqi Chen, Jie Chen + 1 more
—Proportional-Integral-Derivative (PID) control has been the workhorse of control technology for about a century. Yet to this day, designing and tuning PID controllers relies mostly on either tabulated rules (Ziegler-Nichols) or on classical graphical techniques (Bode). Our goal in this paper is to take a fresh look on…
Michael Ruderman, Elia Brescia, Paolo Roberto Massenio, Giuseppe Leonardo Cascella + 1 more
—Synchronous reference frame phase-looked loop (SRF-PLL) techniques are widely used for interfacing and control applications in the power systems and energy conversion at large. Since a PLL system synchronizes its output with an exogenous harmonic signal, often 3-phases voltage or current, the locking of the frequency…
William Twengström, Carlos F. Moro, Jenny Romell, Jakob C. Larsson + 3 more
'Ernesto Sparrelid' 'Mikael Björnstedt' 'Hans M. Hertz'] Title: Abstract. Purpose Surgery is an essential part of the curative plan for most patients affected with solid tumors. The outcome of such surgery, e.g., recurrence rates and ultimately patient survival, depends on several factors where the resection margin is…
Shreevathsa Chalathadka Subrahmanya, C. Darsow-Fromm, Oliver Gerberding
bandwidth Authors: ['Shreevathsa Chalathadka Subrahmanya' 'C. Darsow-Fromm' 'Oliver Gerberding'] Abstract—Precise measurements of the frequency and phase of an electrical or optical signal play a key role in various branches of science and engineering. Tracking changing laser frequencies is specifically demanding when…
Yuli Jiang, Jian Liang, Chunyan Wang, Li Tan + 3 more
'Shingo Nagawa' 'Cheng-Yang Huang'] Highly differentiated tissues and organs play essential biological functions in multicellular organisms. Coordination of organ developmental process with tissue differentiation is necessary to achieve proper development of mature organs, but mechanisms for such coordination are not…
Tomasz Kowalski, Gian Piero Gibiino, Jarosław Szewiński, Krzysztof Czuba + 5 more
'Krzysztof Czuba' 'Dominik Rybka' 'Konrad Chmielewski' 'Zbigniew Wojciechowski' 'Maciej Sitek' 'Federico Alimenti'] The low-level radio frequency (LLRF) control system is one of the fundamental parts of a particle accelerator, ensuring the stability of the electro-magnetic (EM) field inside the resonant cavities. It…
Balagopal Pai, Susana Isabel Ramos, Wan Sze Cheng, Tanvi Joshi + 9 more
Glioblastoma (GBM) remains an untreatable disease. Understanding GBM’s infiltrative biology at the resection margin is limited, despite causing disease recurrence and progression. To address this, we generated a high-throughput single-nucleus (sn)RNA-seq and snATAC-seq multi-omic dataset from six tumors with distinct…
Ilya Pyatin, Juliy Boiko, Viacheslav Kovtun, Oksana Kovtun + 1 more
'Sushank Chaudhary'] Modern 4G/5G technologies aim to enhance data speeds, improve communication quality, and enable innovative services such as IoT and augmented reality. However, their efficiency depends on minimizing distortions in the radio frequency (RF) interface, evaluated through Error Vector Magnitude (EVM).…
Anirudh Wodeyar, François A. Marshall, Catherine J. Chu, Uri T. Eden + 1 more
Rhythms are a common feature of brain activity. Across different types of rhythms, the phase has been proposed to have functional consequences, thus requiring its accurate specification from noisy data. Phase is conventionally specified using techniques that presume a frequency band-limited rhythm. However, in…
Akari Matsuki, Hiroshi Kori, Ryota Kobayashi
Rhythmic activity is ubiquitous in biological systems from the cellular to organism level. Reconstructing the instantaneous phase is the first step in analyzing the essential mechanism leading to a synchronization state from the observed signals. A popular method of phase reconstruction is based on the Hilbert…
Enrico Rubiola, F. Vernotte
—Phase noise and frequency (in)stability both describe the fluctuation of stable periodic signals, from somewhat different standpoints. Frequency is unique compared to other domains of metrology, in that its fluctuations of interest span at least 14 orders of magnitude, from 10−4 in a mechanical watch to 10−18 in…
Bjorn Verstraeten, Sebastiaan Lootens, Robin Van Den Abeele, Viktor Van Nieuwenhuize + 9 more
Phase mapping is a widespread method for identifying rotational electrical activity sustaining cardiac arrhythmias. However, conventional implementations assume that the cardiac phase map is continuous, leading to ill-defined phase indices in regions affected by functional conduction block, fibrosis, or anatomical…
Tak Hur, Daniel K. Park
Understanding and improving generalization capabilities is crucial for both classical and quantum machine learning (QML). Recent studies have revealed shortcomings in current generalization theories, particularly those relying on uniform bounds, across both classical and quantum settings. In this work, we present a…
Chengxi Lei, Satwinder Singh, Feng Hou, Xiaoyun Jia + 1 more
Most of the current speech data augmentation methods operate on either the raw waveform or the amplitude spectrum of speech. In this paper, we propose a novel speech data augmentation method called PhasePerturbation that operates dynamically on the phase spectrum of speech. Instead of statically rotating a phase by a…
Shivangi Patel, Eleni Psarou, Gregor Mönke, Pascal Fries
Cognitive functions depend on neuronal communication, which is subserved by the synchronization of neuronal rhythms. Rhythms are characterized by their frequency, power and phase. If the phase of a rhythm just preceding an input is predictive of the neuronal or behavioral response to the input, this provides strong…
Qun Ge, Lu Ren, Jia Li
In currently known theories and algorithms of fault recording analysis and application, there is little literature where fault feature parameters are mined deeply from electrical physical quantities themselves. In this report the calculation method of the phase angles of the reference point and sample points is…
Akari Matsuki, Hiroshi Kori, Ryota Kobayashi
Rhythmic activity is ubiquitous in biological systems from the cellular to organism level. Reconstructing the instantaneous phase is the first step in analyzing the essential mechanism leading to a synchronization state from the observed signals. A popular method of phase reconstruction is based on the Hilbert…
Issey Sukeda, Takeru Matsuda
Identifying phase coupling from electrophysiological signals recorded by multiple electrodes, such as electroencephalogram (EEG) and electrocorticography (ECoG), helps neuroscientists and clinicians understand the underlying brain structures or mechanisms. From a statistical perspective, these signals are…
Sara Giarrusso, Paola Gori-Giorgi, Federica Agostini
We generalize the definitions of local scalar potentials named vkin and vN−1, which are relevant to properly describe phenomena such as molecular dissociation with density-functional theory, to the case in which the electronic wavefunction corresponds to a complex current-carrying state. In such a case, an extra term…
Ning Cao, William Bro-Jørgensen, Xiaohong Zheng, Gemma Solomon
Quantum interference effects in conjugated molecules have been well explored, with benzene frequently invoked as a pedagogical example. These interference effects have been understood through a quantum interference map in which the electronic transmission is separated into interfering and non-interfering terms, with a…
Malgorzata Binek, Pawel Rozga, Hossam A. Gabbar, Andrea Cataldo
The development of digital techniques in control engineering leads to the creation of innovative algorithms for measuring specific parameters. In the field of electric power engineering these parameters may be amplitude, phase and frequency of voltage or current occurring in the analyzed electric grid. Thus, the…
suraj Manikandan, Jens Andreasen
This preprint has been retracted at the authors' request because of recently discovered fundamental errors and misrepresentation in the underlying data.This communication introduces a Ka-band phase shifter that leverages a blend of the donor polymer PM6 and non-fullerene acceptor (NFA) Y7 organic materials. The design…