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Journal articles on the topic 'Signal processing chain'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 May 2024

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1

Volić, Ismar. "Topological Methods in Signal Processing." B&H Electrical Engineering 14, s1 (2020): 14–25. http://dx.doi.org/10.2478/bhee-2020-0002.

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Abstract This article gives an overview of the applications of algebraic topology methods in signal processing. We explain how the notions and invariants such as (co)chain complexes and (co)homology of simplicial complexes can be used to gain insight into higher-order interactions of signals. The discussion begins with some basic ideas in classical circuits, continues with signals over graphs and simplicial complexes, and culminates with an overview of sheaf theory and the connections between sheaf cohomology and signal processing.

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Tourneret, Jean-Yves, and Olive Cappé. "Signal processing special issue on Markov Chain Monte Carlo (MCMC) methods for signal processing." Signal Processing 81, no. 1 (2001): 1–2. http://dx.doi.org/10.1016/s0165-1684(00)00186-9.

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ELLIOTT, ROBERT J., WILLIAM C. HUNTER, and BARBARA M. JAMIESON. "FINANCIAL SIGNAL PROCESSING: A SELF CALIBRATING MODEL." International Journal of Theoretical and Applied Finance 04, no. 04 (2001): 567–84. http://dx.doi.org/10.1142/s0219024901001140.

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Previous work on multifactor term structure models has proposed that the short rate process is a function of some unobserved diffusion process. We consider a model in which the short rate process is a function of a Markov chain which represents the "state of the world". This enables us to obtain explicit expressions for the prices of zero-coupon bonds and other securities. Discretizing our model allows the use of signal processing techniques from Hidden Markov Models. This means we can estimate not only the unobserved Markov chain but also the parameters of the model, so the model is self-cali

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Adl, Sanaz, and Martin Peckerar. "Low-Noise Signal Processing Chain for High Capacitance Sensors." IEEE Sensors Journal 8, no. 11 (2008): 1864–70. http://dx.doi.org/10.1109/jsen.2008.2006258.

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Renoult, Julien P., and Tamra C. Mendelson. "Processing bias: extending sensory drive to include efficacy and efficiency in information processing." Proceedings of the Royal Society B: Biological Sciences 286, no. 1900 (2019): 20190165. http://dx.doi.org/10.1098/rspb.2019.0165.

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Communication signals often comprise an array of colours, lines, spots, notes or odours that are arranged in complex patterns, melodies or blends. Receiver perception is assumed to influence preference and thus the evolution of signal design, but evolutionary biologists still struggle to understand how perception, preference and signal design are mechanistically linked. In parallel, the field of empirical aesthetics aims to understand why people like some designs more than others. The model of processing bias discussed here is rooted in empirical aesthetics, which posits that preferences are i

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Majchrzak, Jarosław, and Grzegorz Wiczyński. "Basic Characteristics of IEC Flickermeter Processing." Modelling and Simulation in Engineering 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/362849.

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Flickermeter is a common name for a system that measures the obnoxiousness of flicker caused by voltage fluctuations. The output of flickermeter is a value of short-term flicker severity indicator, . This paper presents the results of the numerical simulations that reconstruct the processing of flickermeter in frequency domain. With the use of standard test signals, the characteristics of flickermeter were determined for the case of amplitude modulation of input signal, frequency modulation of input signal, and for input signal with interharmonic component. For the needs of simulative research

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Sanchez, Victoria, Antonio M. Peinado, Jose L. Pérez-Córdoba, and Angel M. Gómez. "A new signal characterization and signal-based Chou's PseAAC representation of protein sequences." Journal of Bioinformatics and Computational Biology 13, no. 05 (2015): 1550024. http://dx.doi.org/10.1142/s0219720015500249.

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Most of the algorithms used for information extraction and for processing the amino acid chains that make up proteins treat them as symbolic chains. Fewer algorithms exploit signal processing techniques that require a numerical representation of amino acid chains. However, these algorithms are very powerful for extracting regularities that cannot be detected when working with a symbolic chain, which may be important for understanding the biological meaning of a sequence or in classification tasks. In this study, a new mathematical representation of amino acid chains is proposed, which is deriv

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Haidaris, PJ, and MA Courtney. "Liver-specific RNA processing of the ubiquitously transcribed rat fibrinogen gamma-chain gene." Blood 79, no. 5 (1992): 1218–24. http://dx.doi.org/10.1182/blood.v79.5.1218.1218.

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Abstract Fibrinogen gamma-chains differ in amino acid sequence at the carboxyterminus due to alternative 3′ RNA processing. Previous studies reported differences between humans and rats in the mechanism of gamma- chain RNA processing and that it was a nonregulated event. To test the hypothesis that rat gamma-chain RNA processing involves both alternative splicing and poly(A) site selection and that it is regulated in a tissue-specific manner, we determined the tissue distribution of gamma-chain mRNA expression and the pattern of gamma- chain pre-mRNA processing. The results of in situ hybridiz

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Haidaris, PJ, and MA Courtney. "Liver-specific RNA processing of the ubiquitously transcribed rat fibrinogen gamma-chain gene." Blood 79, no. 5 (1992): 1218–24. http://dx.doi.org/10.1182/blood.v79.5.1218.bloodjournal7951218.

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Fibrinogen gamma-chains differ in amino acid sequence at the carboxyterminus due to alternative 3′ RNA processing. Previous studies reported differences between humans and rats in the mechanism of gamma- chain RNA processing and that it was a nonregulated event. To test the hypothesis that rat gamma-chain RNA processing involves both alternative splicing and poly(A) site selection and that it is regulated in a tissue-specific manner, we determined the tissue distribution of gamma-chain mRNA expression and the pattern of gamma- chain pre-mRNA processing. The results of in situ hybridization dem

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Fitzgerald, W. J. "Markov chain Monte Carlo methods with applications to signal processing." Signal Processing 81, no. 1 (2001): 3–18. http://dx.doi.org/10.1016/s0165-1684(00)00187-0.

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Kampik, Marian, Jerzy Roj, and Łukasz Dróżdż. "Error Model of a Measurement Chain Containing the Discrete Wavelet Transform Algorithm." Applied Sciences 14, no. 8 (2024): 3461. http://dx.doi.org/10.3390/app14083461.

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This paper presents an error model of a measurement chain containing a link that executes a discrete wavelet transform algorithm, which is most often the last stage of measurement signal processing. The goal is to determine the uncertainty budget of the input quantities of the wavelet transform algorithm. The error model takes into account parts of analog, analog-to-digital and digital processing, describing the properties of subsequent fragments of the chain using their transmittance and processing functions. The proposed model enables the description of both the deterministic and non-determi

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Bae, Bum Won, In Pil Kang, and Yeon Sun Choi. "A Gear Chain Fault Detection Method Using an Adaptive Interference Canceling." Key Engineering Materials 345-346 (August 2007): 1303–6. http://dx.doi.org/10.4028/www.scientific.net/kem.345-346.1303.

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A fault diagnosis method based on wavelet and adaptive interference canceling is presented for the identification of a damaged gear tooth. A damaged tooth of a certain gear chain generates impulsive signals that could be informative to fault detections. Many publications are available not only for the impulsive vibration signal analysis but the application of signal processing techniques to the impulsive signal detections. However, most of the studies about the gear fault detection using the impulsive vibration signals of a driving gear chain are limited to the verification of damage existence

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Xia, ChaoYu, Chang-Bo Hou, Chun-Bo Guo, Zhao Zhang, and Chun-Rong Yang. "Signal chain architectures for efficient airport surface movement radar video processing." Signal, Image and Video Processing 15, no. 7 (2021): 1537–45. http://dx.doi.org/10.1007/s11760-021-01886-6.

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Delettrez, C., M. J. Griffin, C. Le Naour, S. Church, and J. P. Chabaud. "The detector signal processing chain of the ISO long wavelength spectrometer." Experimental Astronomy 4, no. 3-4 (1994): 213–35. http://dx.doi.org/10.1007/bf01580783.

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Zhong, Guangming, Paola Romagnoli, and Ronald N. Germain. "Related Leucine-based Cytoplasmic Targeting Signals in Invariant Chain and Major Histocompatibility Complex Class II Molecules Control Endocytic Presentation of Distinct Determinants in a Single Protein." Journal of Experimental Medicine 185, no. 3 (1997): 429–38. http://dx.doi.org/10.1084/jem.185.3.429.

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Leucine-based signals in the cytoplasmic tail of invariant chain (Ii) control targeting of newly synthesized major histocompatibility complex class II molecules to the endocytic pathway for acquisition of antigenic peptides. Some protein determinants, however, do not require Ii for effective class II presentation, although endocytic processing is still necessary. Here we demonstrate that a dileucine-based signal in the cytoplasmic tail of the class II β chain is critical for this Ii-independent presentation. Elimination or mutation of this signal reduces the rate of re-entry of mature surface

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16

Henderson, Mel, and Ray Over. "Information Processing by Tree Fellers: Signal Detection Analysis." Perception 22, no. 9 (1993): 1085–92. http://dx.doi.org/10.1068/p221085.

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Eighteen experienced tree fellers and eighteen forestry students watched video recordings of mature eucalypts being felled by a man using a chain saw, and then rated whether each tree had fallen normally or abnormally. Signal-detection analysis showed that the tree fellers were more accurate than the forestry students in predicting eventual outcome. Further, the tree fellers achieved peak accuracy in discrimination by the time the logger had completed cutting the scarf (typically several minutes before the tree hit the ground), whereas the forestry students predicted outcome most accurately on

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Trauchessec, Vincent. "Metrology of Acquisition Chains and Signal Processing of LMJ Experiments." EPJ Web of Conferences 253 (2021): 03001. http://dx.doi.org/10.1051/epjconf/202125303001.

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Since the first experiment in 2014, more and more plasma diagnostics are being deployed on the Laser MegaJoule (LMJ) facility manufactured by C.E.A/D.A.M. These diagnostics aim at measuring radiations or particles emitted during laser experiments to study high-energy physics, especially inertial confinement fusion (ICF). Different types of sensors surround the LMJ target chamber and realize the conversion of the quantities of interest to an electric signal. The signal is then transmitted via coaxial cables, acquired by a broadband oscilloscope, and digitally post-processed. Each step of this t

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18

Zhu, Li Long, and Jian Xin You. "Quality Control and Signaling Strategy in Supply Chain." Key Engineering Materials 467-469 (February 2011): 164–73. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.164.

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Based on the principal-agent theory, this paper constructs quality signaling game model in supply chain under the condition of asymmetric information. The supplier makes the production process investment decision and determines the type of production process level (high level type or low level type), who will also make quality prevention strategy and determine its products quality prevention level. The manufacturer makes the quality appraisal strategy and processing strategy when it accepts the intermediary components, who will also determine its products quality inspection level and processin

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Szczepankiewicz, Karolina, Mateusz Malanowski, and Michał Szczepankiewicz. "Passive Radar Parallel Processing Using General-Purpose Computing on Graphics Processing Units." International Journal of Electronics and Telecommunications 61, no. 4 (2015): 357–63. http://dx.doi.org/10.1515/eletel-2015-0047.

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Abstract In the paper an implementation of signal processing chain for a passive radar is presented. The passive radar which was developed at the Warsaw University of Technology, uses FM radio and DVB-T television transmitters as ”illuminators of opportunity”. As the computational load associated with passive radar processing is very high, NVIDIA CUDA technology has been employed for effective implementation using parallel processing. The paper contains the description of the algorithms implementation and the performance results analysis.

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Roy, R. N., S. Charbonnier, and S. Bonnet. "Detection of mental fatigue using an active BCI inspired signal processing chain." IFAC Proceedings Volumes 47, no. 3 (2014): 2963–68. http://dx.doi.org/10.3182/20140824-6-za-1003.00897.

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Vasin, Pavlo. "ALGORITHM FOR RECOGNITION TECHNOLOGY OF ACOUSTIC SIGNALS." Bulletin of the National Technical University "KhPI". Series: Mathematical modeling in engineering and technologies, no. 1 (August 1, 2023): 36–44. http://dx.doi.org/10.20998/2222-0631.2023.01.06.

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An algorithm for processing the reflected acoustic signal for the technology of object recognition against the background of noise interference is presented. The considered mathematical model takes into account that the input data (acoustic signals) have a previously unknown probability distribution. To build an acoustic signal processing technology the Markov chain based probabilistic models, the Monte Carlo integration method and the Bootstrap filter method built on it were used. Based on them, an algorithm for processing an acoustic signal reflected from obstacles was created. The signal pr

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22

Jaquenod, Guillermo A., Javier Valls, and Javier Siman. "Efficient FPGA Hardware Reuse in a Multiplierless Decimation Chain." International Journal of Reconfigurable Computing 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/546264.

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In digital communications, an usual reception chain requires many stages of digital signal processing for filtering and sample rate reduction. For satellite on board applications, this need is hardly constrained by the very limited hardware resources available in space qualified FPGAs. This short paper focuses on the implementation of a dual chain of 14 stages of cascaded half band filters plus 2 : 1 decimators for complex signals (in-phase and quadrature) with minimal hardware resources, using a small portion of an UT6325 Aeroflex FPGA, as a part of a receiver designed for a low data rate com

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23

Tourneret, Jean-Yves, and Olivier Cappé. "Erratum to: “Special Section on Markov Chain Monte Carlo (MCMC) Methods for Signal Processing” [Signal Processing 81 (1) (January 2001) 1–83]." Signal Processing 81, no. 11 (2001): 2447. http://dx.doi.org/10.1016/s0165-1684(01)00125-6.

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24

Odorizzi, C. G., I. S. Trowbridge, L. Xue, C. R. Hopkins, C. D. Davis, and J. F. Collawn. "Sorting signals in the MHC class II invariant chain cytoplasmic tail and transmembrane region determine trafficking to an endocytic processing compartment." Journal of Cell Biology 126, no. 2 (1994): 317–30. http://dx.doi.org/10.1083/jcb.126.2.317.

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Targeting of MHC class II molecules to the endocytic compartment where they encounter processed antigen is determined by the invariant chain (Ii). By analysis of Ii-transferrin receptor (TR) chimera trafficking, we have identified sorting signals in the Ii cytoplasmic tail and transmembrane region that mediate this process. Two non-tyrosine-based sorting signals in the Ii cytoplasmic tail were identified that mediate localization to plasma membrane clathrin-coated pits and promote rapid endocytosis. Leu7 and Ile8 were required for the activity of the signal most distal to the cell membrane whe

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Chaudhari, Dinesh Kumar, and Bal Ram Ghimire. "Study Of Signal Transmission through Different Array of Cu, Au and Ag Nanospheres." Journal of Institute of Science and Technology 21, no. 1 (2016): 133–39. http://dx.doi.org/10.3126/jist.v21i1.16065.

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Twenty first century is the age of Information Technology and we always look for faster information transport and processing capabilities. Data can be moved by transistors and optical fibers. Transistors carry small amount of data and are small in size while optical fibers can carry huge amount of data but are much bigger in size. Metal nanostructures may possess right combination of electric and optical properties to tackle the issues outlined above and realized dream of significantly faster processing speeds. In this work, dispersion relation in Plasmon modes in linear chain and alternated c

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Jakubowski, Jacek, Marek Kuchta, and Roman Kubacki. "D-Dot Sensor Response Improvement in the Evaluation of High-Power Microwave Pulses." Electronics 10, no. 2 (2021): 123. http://dx.doi.org/10.3390/electronics10020123.

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This article investigates the issue of measuring high-power microwave (HPM) pulses. The high energy of these pulses poses a significant threat to many electronic systems, including those used to manage critical infrastructure. This work focuses on requirements for a potential portable measurement device and suggests the application of a method for this purpose, involving the use of a D-dot sensor and a rapid A/D converter. The applied converter enables recording the time waveform on the measuring chain output, also in the case of repetition and time duration of HPM signals. The authors also pr

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Jakubowski, Jacek, Marek Kuchta, and Roman Kubacki. "D-Dot Sensor Response Improvement in the Evaluation of High-Power Microwave Pulses." Electronics 10, no. 2 (2021): 123. http://dx.doi.org/10.3390/electronics10020123.

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This article investigates the issue of measuring high-power microwave (HPM) pulses. The high energy of these pulses poses a significant threat to many electronic systems, including those used to manage critical infrastructure. This work focuses on requirements for a potential portable measurement device and suggests the application of a method for this purpose, involving the use of a D-dot sensor and a rapid A/D converter. The applied converter enables recording the time waveform on the measuring chain output, also in the case of repetition and time duration of HPM signals. The authors also pr

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Aach, T., H. Witte, and T. M. Lehmann. "Sensor, Signal and Image Informatics." Yearbook of Medical Informatics 15, no. 01 (2006): 57–67. http://dx.doi.org/10.1055/s-0038-1638479.

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SummaryThe number of articles published annually in the fields of biomedical signal and image acquisition and processing is increasing. Based on selected examples, this survey aims at comprehensively demonstrating the recent trends and developments.Four articles are selected for biomedical data acquisition covering topics such as dose saving in CT, C-arm X-ray imaging systems for volume imaging, and the replacement of dose-intensive CTbased diagnostic with harmonic ultrasound imaging. Regarding biomedical signal analysis (BSA), the four selected articles discuss the equivalence of different ti

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Ganapathy, Vadivel. "A traffic signal for heterodimeric amino acid transporters to transfer from the ER to the Golgi." Biochemical Journal 417, no. 2 (2008): e9-e11. http://dx.doi.org/10.1042/bj20082246.

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Heterodimeric amino acid transporters represent a unique class of transport systems that consist of a light chain that serves as the ‘transporter proper’ and a heavy chain that is necessary for targeting the complex to the plasma membrane. The currently prevailing paradigm assigns no role for the light chains in the cellular processing of these transporters. In this issue of the Biochemical Journal, Sakamoto et al. provide evidence contrary to this paradigm. Their studies with the rBAT –b0,+AT (related to b0,+ amino acid transporter–b0,+-type amino acid transporter) heterodimeric amino acid tr

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30

Ma, Jin Ping, Wei Chen, and Jian Zhong. "The Testing System of Precise Motion Transmission Chains Based on Virtual Instrument." Applied Mechanics and Materials 775 (July 2015): 385–89. http://dx.doi.org/10.4028/www.scientific.net/amm.775.385.

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This paper mainly adopts the virtual instrument to realize the test on the accuracy of precise transmission chains, and a precise transmission testing system has been developed. The system based on the LABVIEW software can realize data acquisition, signal processing and display of results, meanwhile,it can dynamically analyze the precision of the transmission chain. The results of the actual measurements show that the testing system can accurately and rapidly measure the precision index, furthermore, it has the characteristics of high accuracy, good real-time performance, flexible operation, e

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Mijarez, Rito, David Pascacio, Ricardo Guevara, and Joaquin Rodriguez. "Signal processing algorithm for thermal drift compensation in high-temperature down-hole instrumentation systems." Transactions of the Institute of Measurement and Control 39, no. 8 (2016): 1161–68. http://dx.doi.org/10.1177/0142331216630360.

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Down-hole oil and gas industry requirements for measuring thermodynamic and geophysical parameters, for instance pressure, temperature, vibration and multiphase flow, are challenging. Accomplishing these necessities requires a complete signal communications chain of high-performance components and effective signal processing communication techniques to provide system reliability. Nevertheless, noise interference, cable attenuation and thermal drift of the front-end passive electronic elements can lead to poor signal-to-noise ratio (SNR) and possibly loss of the communication link. This paper d

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Wang, Weibin, Renyong Chi, and Caihong Liu. "Modeling on Disruption Risk Prediction of Manufacturing Supply Chain Based on C4.5 Algorithm." International Journal of Circuits, Systems and Signal Processing 15 (July 14, 2021): 578–85. http://dx.doi.org/10.46300/9106.2021.15.64.

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Under the impact of covid-19, the global and domestic manufacturing supply chains, almost suffered from the serious interruption crisis of manpower flow, logistics, information flow and capital flow. The risk of supply chain disruption has become the primary risk of the supply chain. However, some risk inducement of supply chain interruption is complex and diverse, so it is very difficult to grasp and screen the risk data needed for research from the supply chain operation data. To improve the robustness of supply chain for boosting the domestic and international circulation of China's manufac

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Bakos, Károly. "Hyperspectral data processing chain development perspectives for vegetation studies." Tájökológiai Lapok 6, no. 1-2 (2008): 119–25. http://dx.doi.org/10.56617/tl.4153.

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In this paper the possibilities of hyperspectral data processing is investigated regarding to the application of these images in natural and ecological applications. A short overview is given of the available methods for interpretation purposes and special attention is paid on how the unique properties of hyperspectral data are affecting the choice from available methods for data processing. A broad identification of possible processing chain is discussed with the aim of developing more modular and application driven way of processing of the large data volumes. Automatic or semi-automatic proc

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Chaudhari, D. K., and B. R. Ghimire. "Study of Signal Transmission through different Array of Cu, Au and Ag Nanospheres." Journal of Nepal Physical Society 4, no. 1 (2017): 42. http://dx.doi.org/10.3126/jnphyssoc.v4i1.17335.

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<p>Twenty first century is the age of Information Technology and we always look for faster information transport and processing capabilities. Data can be moved by transistors and optical fibers. Transistors carry small amount of data and are small in size while optical fibers can carry huge amount of data but are much bigger in size. Metal nanostructures may possess right combination of electric and optical properties to tackle the issues outlined above and realized the dream of significantly faster processing speeds. In this work, dispersion relation in Plasmon modes in linear chain and

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D'Amico, Giuseppe, Aldo Amodeo, Ina Mattis, Volker Freudenthaler, and Gelsomina Pappalardo. "EARLINET Single Calculus Chain – technical – Part 1: Pre-processing of raw lidar data." Atmospheric Measurement Techniques 9, no. 2 (2016): 491–507. http://dx.doi.org/10.5194/amt-9-491-2016.

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Abstract. In this paper we describe an automatic tool for the pre-processing of aerosol lidar data called ELPP (EARLINET Lidar Pre-Processor). It is one of two calculus modules of the EARLINET Single Calculus Chain (SCC), the automatic tool for the analysis of EARLINET data. ELPP is an open source module that executes instrumental corrections and data handling of the raw lidar signals, making the lidar data ready to be processed by the optical retrieval algorithms. According to the specific lidar configuration, ELPP automatically performs dead-time correction, atmospheric and electronic backgr

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D'Amico, G., A. Amodeo, I. Mattis, V. Freudenthaler, and G. Pappalardo. "EARLINET Single Calculus Chain – technical – Part 1: Pre-processing of raw lidar data." Atmospheric Measurement Techniques Discussions 8, no. 10 (2015): 10387–428. http://dx.doi.org/10.5194/amtd-8-10387-2015.

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Abstract. In this paper we describe an automatic tool for the pre-processing of lidar data called ELPP (EARLINET Lidar Pre-Processor). It is one of two calculus modules of the EARLINET Single Calculus Chain (SCC), the automatic tool for the analysis of EARLINET data. The ELPP is an open source module that executes instrumental corrections and data handling of the raw lidar signals, making the lidar data ready to be processed by the optical retrieval algorithms. According to the specific lidar configuration, the ELPP automatically performs dead-time correction, atmospheric and electronic backgr

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Nicchitta, C. V., and G. Blobel. "Nascent secretory chain binding and translocation are distinct processes: differentiation by chemical alkylation." Journal of Cell Biology 108, no. 3 (1989): 789–95. http://dx.doi.org/10.1083/jcb.108.3.789.

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We have investigated the effects of chemical alkylation of microsomal membranes on nascent chain binding and translocation. Assays were conducted using either full-length or truncated preprolactin transcripts in combination with a reconstituted membrane system consisting of proteolyzed rough microsomes and the cytoplasmic domain of the signal recognition particle receptor. Treatment of rough microsomes with N-ethylmaleimide was observed to inhibit preprolactin processing at a site other than the signal recognition particle or the signal recognition particle receptor. As formation of a transloc

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Heister, S. R., and V. V. Kirichenko. "Influence of Analog-To-Digital Conversion and Decimation Parameters on the Signal-To-Noise Ratio in the Radar Path." Journal of the Russian Universities. Radioelectronics 24, no. 6 (2021): 38–50. http://dx.doi.org/10.32603/1993-8985-2021-24-6-38-50.

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Introduction. The digital representation of received radar signals has provided a wide range of opportunities for their processing. However, the used hardware and software impose some limits on the number of bits and sampling rate of the signal at all conversion and processing stages. These limitations lead to a decrease in the signal-to-interference ratio due to quantization noise introduced by powerful components comprising the received signal (interfering reflections; active noise interference), as well as the attenuation of a low-power reflected signal represented by a limited number of bi

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Brachet, Valérie, Graça Raposo, Sebastian Amigorena, and Ira Mellman. "Ii Chain Controls the Transport of Major Histocompatibility Complex Class II Molecules to and from Lysosomes." Journal of Cell Biology 137, no. 1 (1997): 51–65. http://dx.doi.org/10.1083/jcb.137.1.51.

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Major histocompatibility complex class II molecules are synthesized as a nonameric complex consisting of three αβ dimers associated with a trimer of invariant (Ii) chains. After exiting the TGN, a targeting signal in the Ii chain cytoplasmic domain directs the complex to endosomes where Ii chain is proteolytically processed and removed, allowing class II molecules to bind antigenic peptides before reaching the cell surface. Ii chain dissociation and peptide binding are thought to occur in one or more postendosomal sites related either to endosomes (designated CIIV) or to lysosomes (designated

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Castillo, Joel A., Jorge Flores-Troncoso, Rigoberto Jáuregui, Jorge Simón, and José L. Alvarez-Flores. "Signal Conditioning Stage in S-Band Communication Subsystem for CubeSat Applications." Electronics 10, no. 14 (2021): 1627. http://dx.doi.org/10.3390/electronics10141627.

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This work presents the design, performance evaluation, manufacture, and characterization of an RF front-end signal conditioning chain on a substrate that achieves the best performance at S-band frequencies and complies with the dimensions of the international standard for CubeSat-type nanosatellites. In this development, the signal conditioning chains were carried out on the high-frequency substrates RO4350B, CuClad 250, and RT/duroid 5880, considering scattering parameters in a small-signal regime. Concerning the power output, after the filtering and amplifying stages, the conditioning chain

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Zhou, Yunshan, and Xiangjun Xu. "Intelligent Supply Chain Information System Based on Internet of Things Technology under Asymmetric Information." Symmetry 11, no. 5 (2019): 656. http://dx.doi.org/10.3390/sym11050656.

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The hardware and software designed in the traditional supply chain system lack cooperation in the transmission process, have low efficiency, and lead to a large amount of information distortion.In response to this problem, this paper proposes an intelligent supply chain information system based on the Internet of Things technology. The research focuses on the hardware and software of the system. The hardware part consists of the embedded processor CS89712, Flash7861 memory, Ethernet, touch screen, and LCD (Liquid Crystal Display). The software system is based on asymmetric information theory d

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Tzeng, Chao-Wen, Jheng-Syun Yang, and Shi-Yu Huang. "A versatile paradigm for scan chain diagnosis of complex faults using signal processing techniques." ACM Transactions on Design Automation of Electronic Systems 13, no. 1 (2008): 1–27. http://dx.doi.org/10.1145/1297666.1297675.

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Bozzini, J., and Y. Acremann. "Test signal generator for simulating electron events from a momentum microscope." Journal of Instrumentation 18, no. 01 (2023): P01014. http://dx.doi.org/10.1088/1748-0221/18/01/p01014.

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Abstract Preparing experiments that utilize free electron lasers is challenging because obtaining access to the facility is difficult. The integration of detectors into the data acquisition system needs to be tested before the beamtime starts. In this study, we develop a test signal generator that simulates the signals from a delay-line detector used in a time-of-flight electron spectrometer. The output signals of the simulator are connected to the time-to-digital converter electronics and simulate a realistic energy spectrum of a real spectrometer. Through this method, the detector electronic

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Christian, Andrew, Randall Ali, and Eric Greenwood. "An n-order hold approach for fractional-delay interpolation in auralization." Journal of the Acoustical Society of America 151, no. 4 (2022): A188. http://dx.doi.org/10.1121/10.0011055.

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During the signal processing chain of an auralization simulating the propagation of a sound from a moving source to a stationary receiver, it is often necessary to interpolate between the samples of the source signal in order to arrive at uniformly-spaced samples at the receiver. In some cases, this interpolation is done in the receiver time frame—where the “input” samples of the source have become irregularly spaced due to time dilation effects. Canonical band-limited interpolation methods (i.e., sinc and sinc-derived approaches) cannot be applied in this case as they rely on having a uniform

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Madysa, Nico. "AREUS: A Software Framework for ATLAS Readout Electronics Upgrade Simulation." EPJ Web of Conferences 214 (2019): 02006. http://dx.doi.org/10.1051/epjconf/201921402006.

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The design of readout electronics for the LAr calorimeters of the ATLAS detector to be operated at the future High-Luminosity LHC (HL-LHC) requires a detailed simulation of the full readout chain in order to find optimal solutions for the analog and digital processing of the detector signals. Due to the long duration of the LAr calorimeter pulses relative to the LHC bunch crossing time, out-of-time signal pileup needs to be taken into account. For this purpose, the simulation framework AREUS has been developed. It models analog-to-digital conversion, gain selection, and digital signal processi

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Desai, Madhav P., Gabriel Caffarena, Ruzica Jevtic, David G. Márquez, and Abraham Otero. "A Low-Latency, Low-Power FPGA Implementation of ECG Signal Characterization Using Hermite Polynomials." Electronics 10, no. 19 (2021): 2324. http://dx.doi.org/10.3390/electronics10192324.

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Automatic ECG signal characterization is of critical importance in patient monitoring and diagnosis. This process is computationally intensive, and low-power, online (real-time) solutions to this problem are of great interest. In this paper, we present a novel, dedicated hardware implementation of the ECG signal processing chain based on Hermite functions, aiming for real-time processing. Starting from 12-bit ADC samples of the ECG signal, the hardware implements filtering, peak and QRS detection, and least-squares Hermite polynomial fit on heartbeats. This hardware module can be used to compr

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Rodriguez Sanchez, Jesus, Fredrik Rusek, Ove Edfors, Muris Sarajlic, and Liang Liu. "Decentralized Massive MIMO Processing Exploring Daisy-Chain Architecture and Recursive Algorithms." IEEE Transactions on Signal Processing 68 (2020): 687–700. http://dx.doi.org/10.1109/tsp.2020.2964496.

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Yu, Yue Ping, Guang Lin Yu, Hong Bin Li, and Guo Fu Li. "State Monitoring of Lathes Based on Load Current Signal." Applied Mechanics and Materials 201-202 (October 2012): 758–62. http://dx.doi.org/10.4028/www.scientific.net/amm.201-202.758.

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According to the characteristics of machine tools such as complex driving chain ,weak signal and enclosed housing,this paper takes horizontal lathes as study objects and selects current signal which is easy to sample as the analytical signal.We collect motor load current signals of idling, cylindrical cutting and end cutting processing state in the experiment to process the condition monitoring based on wavelet denoising and wavelet packet transform. We take advantage of the threshold denoising method to reduce noise of load current signal.Then we use time-frequency analysis methods of wavelet

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Ilahi, A. K., M. F. R. Auly, D. A. Zaky, et al. "Early Results of Time Domain Receiver Function Data Processing in Mt Merapi and Mt Merbabu." IOP Conference Series: Earth and Environmental Science 873, no. 1 (2021): 012055. http://dx.doi.org/10.1088/1755-1315/873/1/012055.

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Abstract The receiver function method is a method to image the earth subsurface by utilizing Ps conversion waves that are formed due to the velocity boundary. In general, the receiver function method estimates depth of structures such as the mantle-crust boundary by deconvoluting the vertical component from the horizontal component. Typical receiver function data processing is done in the frequency domain where the deconvolution process can be seen as a division between two components. In this study, we tried to reprocess the data using a deconvolution technique in time domain, popularly known

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Karlsson, Mattias F., and John W. C. Robinson. "On Optimality in Auditory Information Processing." Neural Computation 14, no. 9 (2002): 2181–200. http://dx.doi.org/10.1162/089976602320264042.

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We study limits for the detection and estimation of weak sinusoidal signals in the primary part of the mammalian auditory system using a stochastic Fitzhugh-Nagumo model and an action-recovery model for synaptic depression. Our overall model covers the chain from a hair cell to a point just after the synaptic connection with a cell in the cochlear nucleus. The information processing performance of the system is evaluated using so-called φ-divergences from statistics that quantify “dissimilarity” between probability measures and are intimately related to a number of fundamental limits in statis

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