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Journal articles on the topic 'Signal designer'

Author: Grafiati

Published: 24 June 2021

Last updated: 29 July 2025

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1

Jones, E. Yvonne. "Designer protein delivers signal of choice." Nature 565, no. 7738 (2019): 165–66. http://dx.doi.org/10.1038/d41586-018-07883-z.

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Bradley, Robert W., and Baojun Wang. "Designer cell signal processing circuits for biotechnology." New Biotechnology 32, no. 6 (2015): 635–43. http://dx.doi.org/10.1016/j.nbt.2014.12.009.

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Guo, Xiuyang, Anthony Bais, Erica Gomes-DaGama, Kartik Pawar, and Richard Junghans. "High throughput selection of co-stimulation molecules for 3rd generation designer T cells (P4362)." Journal of Immunology 190, no. 1_Supplement (2013): 177.14. http://dx.doi.org/10.4049/jimmunol.190.supp.177.14.

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Abstract Ample co-stimulatory interactions between antigen-presenting cells and T cells are essential for an effective immune response. Similarly, co-stimulation related immuno-experiences have also been considered critical for the successful tumor eradication by T cells in adoptive immunotherapy cases of: conventional tumor infiltrating T cells for melanoma, chimeric antigen receptor (CAR)-expressing EBV-CTLs for EBV-associated malignancies and the recent CD19 CAR T cells for B-cell neoplasms. However, the specific co-stimulation signals playing the major role in successful immunotherapies ar

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Taneva, Ina. "Information Design." American Economic Journal: Microeconomics 11, no. 4 (2019): 151–85. http://dx.doi.org/10.1257/mic.20170351.

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A designer commits to a signal distribution that is informative about a payoff-relevant state. Conditional upon the privately observed signals, agents take actions that affect their payoffs as well as those of the designer. We show how to derive the (designer) optimal information structure in static finite environments. We fully characterize it in a symmetric binary setting for a parameterized game. In this environment, conditionally independent private signals are never strictly optimal. (JEL C72, D78, D82, D83)

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Thiel, Gerald, Anke Kaufmann, and Oliver G. Rössler. "G-protein-coupled designer receptors – new chemical-genetic tools for signal transduction research." Biological Chemistry 394, no. 12 (2013): 1615–22. http://dx.doi.org/10.1515/hsz-2013-0164.

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Abstract G-protein-coupled receptors (GPCRs) are the largest group of plasma membrane receptors in nature and are activated by a variety of different ligands. The biological outcome of GPCR stimulation is complex, as a plethora of signaling pathways are activated upon stimulation. These complexity and diversity of GPCR signaling make it difficult to manipulate the signaling pathway of a specific GPCR by natural ligands. To reduce the complexity in experimental settings, specific pharmacological ligands that preferentially activate one signaling pathway have been developed. In addition, G-prote

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Adhikari, Smriti, and Ramesh Kumar Bhandari. "Multi-layer PCB design for mixed-signal systems using altium designer and signal integrity analysis." International Journal of Electronics and Microcircuits 5, no. 1 (2025): 11–14. https://doi.org/10.22271/27084493.2025.v5.i1a.62.

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Jarrah, Amin, and Mohsin M. Jamali. "Reconfigurable FPGA/GPU-Based Architecture of Block Compressive Sampling Matching Pursuit Algorithm." Journal of Circuits, Systems and Computers 24, no. 04 (2015): 1550055. http://dx.doi.org/10.1142/s0218126615500553.

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The signals in reality are sparse signal where a few numbers of samples are non-zero. So, a compression technique must be applied to reduce the overhead of processing, storing, and transmission. Blocking compressive sampling matching pursuit (BCoSaMP) algorithm is a recursive algorithm which provides an accurate reconstruction of sparse signal from a small number of noisy samples. It doesn't assume that the noise is Gaussian or bounded but it uses information about the noise magnitude for stopping criterion. However, BCoSaMP is a computationally intensive algorithm. So, BCoSaMP algorithm has b

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Rawski, Mariusz, Bogdan Falkowski, and Tadeusz Łuba. "Digital signal processing designing for FPGA architectures." Facta universitatis - series: Electronics and Energetics 20, no. 3 (2007): 437–59. http://dx.doi.org/10.2298/fuee0703437r.

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This paper presents the discussion on efficiency of different implementation methodologies of DSP algorithms targeted for modern FPGA architectures. Modern programmable structures are equipped with specialized DSP embedded blocks that allow implementing digital signal processing algorithms with use of the methodology known from digital signal processors. On the first place however, programmable architectures give the designer the possibility to increase efficiency of designed system by exploitation of parallelism of implemented algorithms. Moreover, it is possible to apply special techniques s

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HUAMANÍ NAVARRETE, Pedro. "PROGRAMACIÓN DE INTERFAZ GRÁFICA EN APP DESIGNER DEL MATLAB PARA REPRESENTAR LA SERIE DE FOURIER EN CURSO INTRODUCTORIO DE TELECOMUNICACIONES." Scientia 23, no. 23 (2023): 199–213. http://dx.doi.org/10.31381/scientia.v23i23.4592.

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This article describes the procedure for the implementation of a graphical user interface using the App Designer development environment of the Matlab software and its Toolbox Signal Processing and Symbolic Math, which allowed obtaining the Fourier Series coefficients for seven periodic signals followed by a graphical representation in the domain of time and frequency through pulses. Likewise, this  interface was implemented using various components such as Drop Down, Button, Knob, Axes, among others, which allowed the choice of the number of sinusoidal components used in the decompositi

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Pei, Ying, Sarah C. Rogan, Feng Yan, and Bryan L. Roth. "Engineered GPCRs as Tools to Modulate Signal Transduction." Physiology 23, no. 6 (2008): 313–21. http://dx.doi.org/10.1152/physiol.00025.2008.

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Different families of G-protein-coupled receptors (GPCRs) have been engineered to provide exclusive control over the activation of these receptors and thus to understand better the consequences of their signaling in vitro and in vivo. These engineered receptors, named RASSLs (receptors activated solely by synthetic ligands) and DREADDs (designer receptors exclusively activated by designer drugs), are insensitive to their endogenous ligands but can be activated by synthetic drug-like compounds. Currently, the existing RASSLs and DREADDs cover the Gi, Gq, and Gs signaling pathways. These modifie

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Yu, Sunkyu, Xianji Piao, Jiho Hong, and Namkyoo Park. "Metadisorder for designer light in random systems." Science Advances 2, no. 10 (2016): e1501851. http://dx.doi.org/10.1126/sciadv.1501851.

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Disorder plays a critical role in signal transport by controlling the correlation of a system, as demonstrated in various complex networks. In wave physics, disordered potentials suppress wave transport, because of their localized eigenstates, from the interference between multiple scattering paths. Although the variation of localization with tunable disorder has been intensively studied as a bridge between ordered and disordered media, the general trend of disorder-enhanced localization has remained unchanged, and the existence of complete delocalization in highly disordered potentials has no

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Aseeri, Mohammed, Waleed Alomar, Hamad Alotaibi, and Abdulrahman Aljurbua. "Retrodirective Transceiver Utilizing Phased Array and Direction Finder." Applied Computational Electromagnetics Society 35, no. 9 (2020): 1073–79. http://dx.doi.org/10.47037/2020.aces.j.350914.

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Retrodirectivity have several important applications in communication and in wireless power transfer. In this paper, frequency sensitive retrodirective transceiver is proposed. It receives a signal and infers its direction from its frequency spectrum, then it can transmit a new signal back to the same or other direction at the designer wish. To determine the direction of the coming signal, a 0.85-1.15GHz frequency scanning phased array antenna is used so that the received signal would have a distorted spectrum with the maximum amplitude frequency component linked to the direction of the signal

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Богословский, А. В., С. Н. Разиньков, Э. В. Сёмка, and А. Б. Буслаев. "APPLYING FIELD PROGRAMMABLE GATE ARRAYS IN SYSTEMS OF MULTICHANNEL DIGITAL PROCESSING OF SATELLITE NAVIGATION SIGNALS." Proceedings in Cybernetics 22, no. 2 (2023): 13–20. http://dx.doi.org/10.35266/1999-7604-2023-2-13-20.

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The study analyzes multichannel digital satellite navigation signal processing systems for unmanned aerial vehicles. To advance interference insusceptibility of navigation equipment on the basis of adaptive change in settings, it is advisable to apply a field programmable gate arrays in order to implement variations of algorithms of signal processing without reconfiguring the equipment’s structure in changes in radioelectronic settings. A navigation complex with the function of interference insusceptibility is developed based on the field programmable gate arrays. It may simultaneously receive

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Selliah, Nithianandan, Gail Skowron, Anthony Bais, et al. "2nd generation anti-HIV designer T cells cure HIV-infected cultures and preferentially survive versus 1st generation designer T cells (52.19)." Journal of Immunology 184, no. 1_Supplement (2010): 52.19. http://dx.doi.org/10.4049/jimmunol.184.supp.52.19.

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Abstract Immunotherapies that have the potential to eradicate reservoirs of HIV infected cells may be useful to suppress or cure HIV/AIDS. T cells expressing chimeric immune receptors (CIR) through gene modification (designer T cells) can be redirected to kill HIV-infected cells. Previously, an anti-HIV CIR, CD4ζ (1st generation), was created to kill HIV+ cells. However, the adoptive transfer of autologous CD4ζ T cells failed to control the viral infection in clinical trials. We created a 2nd generation CIR for enhanced potency by providing co-stimulatory signal (CD4CD28ζ). Our data show that

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Senatorov, L. A., V. V. Khvorenkov, and A. V. Savelyev. "Assessment of Complex Signal Parameters Effect on the Energy Concealment Degree." Vestnik IzhGTU imeni M.T. Kalashnikova 25, no. 3 (2022): 62–73. http://dx.doi.org/10.22213/2413-1172-2022-3-62-73.

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The article deals with the problem of obtaining a qualitative assessment of the energy concealment degree of radio signals. Energy concealment is regarded as the most significant form of signal concealment, since a designer of radio transmitting devices has the most influence and the greatest freedom in defining these properties. The purpose of the article is to systematize the available knowledge about the methods of assessment of energy concealment in order to conduct a mutual comparison of the characteristics of various signals. The authors describe and analyze a number of methods for asses

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Karis, Mohd Safirin, Hyreil Anuar Kasdirin, Norafizah Abas, et al. "Analysis of ANN and Fuzzy Logic Dynamic Modelling to Control the Wrist Exoskeleton." Journal of Robotics and Control (JRC) 4, no. 4 (2023): 572–83. http://dx.doi.org/10.18196/jrc.v4i4.19299.

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Human intention has long been a primary emphasis in the field of electromyography (EMG) research. This being considered, the movement of the exoskeleton hand can be accurately predicted based on the user's preferences. The EMG is a nonlinear signal formed by muscle contractions as the human hand moves and easily captured noise signal from its surroundings. Due to this fact, this study aims to estimate wrist desired velocity based on EMG signals using ANN and FL mapping methods. The output was derived using EMG signals and wrist position were directly proportional to control wrist desired veloc

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Aljobouri, Hadeel K. "A Virtual EMG Signal Control and Analysis for Optimal Hardware Design." International Journal of Online and Biomedical Engineering (iJOE) 18, no. 02 (2022): 154–66. http://dx.doi.org/10.3991/ijoe.v18i02.27047.

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Background: A muscle-computer interface is one of the new applications of the human-computer interface technologies and specifically the brain-computer interface. Brain-muscle-computer interface based on the Electromyography (EMG) signal. EMG signal is an electrical activity from a muscle that is used as an input for effecting several tasks.Objective: This work presented an interfacing process between the Graphical User Interface (GUI) and hardware system. Using the implemented system, the researcher shall deals with the raw EMG data easily by analyzing the signal from the muscle sensor detect

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Dello Iacono, Salvatore, Giuseppe Di Leo, Consolatina Liguori, and Vincenzo Paciello. "The Obtainable Uncertainty for the Frequency Evaluation of Tones with Different Spectral Analysis Techniques." Metrology 2, no. 2 (2022): 216–29. http://dx.doi.org/10.3390/metrology2020013.

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Spectral analysis is successfully adopted in several fields. However, the requirements and the constraints of the different cases may be so varied that not only the tuning of the analysis parameters but also the choice of the most suitable technique can be a difficult task. For this reason, it is important that a designer of a measurement system for spectral analysis has knowledge about the behaviour of the different techniques with respect to the operating conditions. The case that will be considered is the realization of a numerical instrument for the real-time measurement of the spectral ch

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Sayandeep, Nag. "Analog Versus Digital Design: When and Where to Make the Cut." Mapana - Journal of Sciences 1, no. 1 (2002): 69–80. http://dx.doi.org/10.12723/mjs.1.7.

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System designers are frequently asked to create circuits that measure and control the analog world. One of the the challenges in these types of designs is to know when to convert the signal signal from the analog domain to the digital domain. In the analog domain, signal conditioning techniques such as gain, offset, and filtering are used to quickly modify the incoming signal. Alternatively, mathematical algorithms are used in the digital domain to implement similar functions. Every system design is unique and requires custom solutions for each case, but there are some general guidelines that

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Zhang, Zhiyuan. "Analysis of the development of an STM32-based smartwatch." Applied and Computational Engineering 31, no. 1 (2024): 43–51. http://dx.doi.org/10.54254/2755-2721/31/20230120.

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Sensors and microcontrollers are well-functioning and inexpensive, and the smartwatch industry continues to grow. In response to the problems of traditional smartwatches, which are not fully functional, have poor computing effectiveness and are not suitable for wearing, this thesis designs a smartwatch based on the STMicroelectronics NUCLEO-L476RG microcontroller, using Altium Designer 17 software to draw The schematic diagram and Printed Circuit Board are drawn using Altium Designer 17 software, the driver code of the sensor is compiled and integrated using MBED software, the signal is proces

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Gusmão, António, Rafael Vieira, Nuno Horta, Nuno Lourenço, and Ricardo Martins. "Exploiting a Deep Learning Toolbox for Human-Machine Feedback towards Analog Integrated Circuit Placement Automation." Electronics 11, no. 23 (2022): 3964. http://dx.doi.org/10.3390/electronics11233964.

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The layout design of analog integrated circuits has been defying all automation attempts, and it is still primarily a handcrafting process carried by circuit designers on traditional layout editing frameworks. This paper presents a toolbox based on deep learning techniques and a sturdy graphical user interface to assist designers during that process. The underlying mechanism of this toolbox relies on a simple pairwise device interaction circuit description, i.e., the circuits’ topological constraints, to propose valid floorplan solutions for block-level structures, including topologies and dee

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Wu, Qiang, Gen Wang, and Xu Wen Li. "Design and Implementation of a High-Speed LVDS Data Acquisition System Based on Virtex-5 FPGA." Applied Mechanics and Materials 568-570 (June 2014): 193–97. http://dx.doi.org/10.4028/www.scientific.net/amm.568-570.193.

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A High-Speed LVDS Data Acquisition system is designed, with XILINX’s Virtex-5 FPGA as core processor as well as TI’s TMS320C6748 DSP for pre-processing and storing data. This system achieved a greater amount of image processing and faster image processing requirement. The system completed the dual LVDS image data acquisition according to the demand. The resolution of the image data is 320x257. Each image transmission frame rate of not less than 150 / sec. large amount of data throughout the system as well as real-time demanding is a big challenge for designer. The designer uses simulation tool

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ANDJELKOVIĆ, BOJAN, VANCO LITOVSKI, and VOLKER ZERBE. "MISSION LEVEL MODELING AND SIMULATION LANGUAGE FOR MIXED-SIGNAL SYSTEM-ON-CHIP DESIGN." Journal of Circuits, Systems and Computers 16, no. 01 (2007): 15–28. http://dx.doi.org/10.1142/s0218126607003435.

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Modern complex system design demands modeling on a high level of abstraction together with the system environment components. Such model enables mission level system simulation in the context of its operational conditions. Mission level design using hardware description language AleC++ is presented in this paper. It provides mission and system level verification of a mixed-signal system-on-chip. After validation at mission and system level, this language enables designers to replace some of the components with implementation level models to test and validate the system implementation at missio

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Lutovac-Banduka, Maja, Aleksandar Simovic, Vladimir Orlic, and Ana Stevanovic. "Dissipation minimization of two-stage amplifier using deep learning." Serbian Journal of Electrical Engineering 20, no. 2 (2023): 129–45. http://dx.doi.org/10.2298/sjee2302129l.

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Designing electrical circuits and devices is usually based on expertise in electronics and the thorough use of numerical software tools. This procedure can be time-consuming, and the designer has only one solution. This paper introduces a new approach focused on new concept design and optimization of specific circuits using symbolic expressions. The primary amplifier circuit, realized by a deep learning module, changes the value to reduce power dissipation. The control signal of the deep learning module is output from an amplifier that depends on the statistics of the input signal value.

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FAURE, CLAUDIE. "USING KNOWLEDGE IN SIGNAL INTERPRETATION." International Journal of Pattern Recognition and Artificial Intelligence 01, no. 02 (1987): 177–88. http://dx.doi.org/10.1142/s0218001487000138.

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When Pattern Recognition is aimed at human task automatization, such as the interpretation of visual data, it leads to Knowledge-Based Pattern Recognition (KBPR) systems. The design of a system, which contains a mixture of human knowledge and numerical data treatments, implies some tasks like Knowledge Acquisition (KA), dividing a problem into sub-problems or identifying different perceptual functions. Such problems cannot be solved by pure PR methods. Improvement of performances in KBPR systems is achieved through a better understanding of the cognitive processes which are involved during dat

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Wang, Qing Dong, and Fei Wu. "An Improved Digital Servo Burst Signal Sampling Model for Disk Drives." Applied Mechanics and Materials 239-240 (December 2012): 857–60. http://dx.doi.org/10.4028/www.scientific.net/amm.239-240.857.

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In order to calculate the servo position error signal (PES) in the servo system, it is necessary to make high precision sampling and FFT calculation for the burst signal. Most designer s adopt 8bits ADC converter in the read write channel servo system of hard drive controller chip 88i6310 to cost down, and both servo system and signal system share the sampling circuit. Because of the quantitative noise disturbing during the sampling process, it is not enough to use 6bits ADC converter for the serve burst signal, and significant error exist for t he burst signal with the FFT calculation. This p

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Sajja, Amrita, and S. Rooban. "Design of Delay Unit for Synchronizing EEG Signal with FPGA-based Hardware Accelerator." WSEAS TRANSACTIONS ON SIGNAL PROCESSING 21 (February 13, 2025): 13–18. https://doi.org/10.37394/232014.2025.21.2.

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The technology used for processing EEG signals from the brain for a specific application is called the brain-computer interface (BCI). This method has numerous applications as a non-intrusive signal capture technique. Hardware accelerators are used to implement an accurate and stable system for capturing these lowfrequency signals, as EEG signal acquisition is highly sensitive, particularly in seizure detection. A critical challenge in this integration is precisely synchronizing EEG signals with the hardware accelerator to ensure real-time processing and accurate detection of epileptic seizure

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Fransiska Sisilia Mukti and Allin Junikhah. "Prediksi Cakupan Area untuk Jaringan Wireless Indoor Kampus berdasarkan Penempatan Access Point." Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan 10, no. 2 (2019): 73–78. http://dx.doi.org/10.48056/jintake.v10i2.55.

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The placement of a transmitter in a wireless network (access point) is one of the essential things which must be considered by the network designer. The right placement will give the maximum signal spread, especially for the closed environment, because of the effect of the indoor propagation, which affects the signal strength decrease significantly. Every AP’s placement point will have different signal spread pattern, including the coverage area. The AP placement process carried out so far still uses conventional methods, namely trial-error, which requires a long time to analyze its performanc

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Mukti, Fransiska Sisilia, and Allin Junikhah. "A Coverage Prediction Technique for Indoor Wireless Campus Network." JURNAL INFOTEL 11, no. 3 (2019): 73–79. http://dx.doi.org/10.20895/infotel.v11i3.434.

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The placement of an Access Point (AP) is an important key to determine the spread of the signal. To get the optimal spread of signals, a network designer is required to understand how much coverage an AP can generate. A prediction is given to describe the coverage area produced based on AP placement for the wireless campus network, using a coordinate map modeling based on the real size for the indoor environment. The theoretical approach is used to determine the coverage area of an AP device by testing the function of the distance between the AP and the user. The results show that the signal g

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Shah, M., and S. Gupta. "Baseband I/Q regeneration Method for Direct Conversion Receiver to nullify effect of I/Q mismatch." Advanced Electromagnetics 5, no. 3 (2016): 50. http://dx.doi.org/10.7716/aem.v5i3.435.

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Direct Conversion Receiver is the choice of the today’s designer for low power compact wireless receiver. DCR is attractive due to low power, small size and highly monolithic integratable structure, but distortions affect its performance. I/Q mismatch is the one of the major distortion which is responsible for performance degradation. In this paper, a novel method for Direct Conversion Receiver is suggested, which makes it insensitive to the I/Q mismatch. Here the classical homodyne architecture is modified to nullify effect of I/Q mismatch. The proposed method can be implemented in the Digita

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Philip B, John, Sarat K Kotamraju, and Ch Sri Kavya. "Modification of ITU-R Parameters to Improve the Prediction of Tropospheric Scintillation for Tropical Regions." International Journal of Engineering & Technology 7, no. 3.12 (2018): 1078. http://dx.doi.org/10.14419/ijet.v7i3.12.17764.

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Scintillation is the rapid fluctuation of the received signal. It is caused by the variation in the refractivity structure of the atmosphere profile. This phenomenon leads to the signal degradation and is significant in low fade margin links and at low elevation angles. So, analyzing the scintillation intensity and its statistics are vital for a system designer to design an efficient system for the satellite communication link. This paper presents the methodology to extract the scintillation intensity from the raw beacon signal and comparison of ITU-R scintillation prediction model with the me

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Ecik, Emre, Werner John, Julian Withöft, and Jürgen Götze. "Anomaly Detection with Decision Trees for AI Assisted Evaluation of Signal Integrity on PCB Transmission Lines." Advances in Radio Science 21 (December 1, 2023): 37–48. http://dx.doi.org/10.5194/ars-21-37-2023.

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Abstract. Printed circuit board (PCB) design can be supported to a high degree by adding AI modules to the design system. Predictions from these modules can be made available to the designer in order to speed up circuit design and make it more efficient. Problems regarding signal integrity (SI) can be detected in time by providing hints on component connection or routing. However, the optimization and ML methods used in this context are usually very sophisticated (e.g., Bayesian optimization). Therefore, the design parameters provided by the AI modules must be accepted without further insights

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Patil, SN, JD Deshpande, and AM Pawar. "Development of Polycrystalline Ferrite Based Smart Sensor module using Mixed Signal Programmable System on Chip." ., Int. Res. Journal of Science & Engineering A12, 2023 (March 24, 2023): 136–40. https://doi.org/10.5281/zenodo.7839063.

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Development of smart sensor module based advanced technology with high performance, large adoptability, portability, to sense the physical parameters is highly needed for electronic instrumentation. Therefore, based on an innovative technology of VLSI design a smart temperature and humidity sensor module is designed and presented in this paper. The composition of nano sized (35nm) Magnesium -Zink ferrites are synthesised by co-precipitation and formation of single-phase compositions are confirmed by x-powder diffraction. The sensor is designed by screen printing technique and implemented for s

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Perez-Richet, Eduardo, and Vasiliki Skreta. "Test Design Under Falsification." Econometrica 90, no. 3 (2022): 1109–42. http://dx.doi.org/10.3982/ecta16346.

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We study the optimal design of tests with manipulable inputs. Tests take a unidimensional state of the world as input and output, an informative signal to guide a receiver's approve or reject decision. The receiver wishes to only approve states that comply with her baseline standard. An agent with a preference for approval can covertly falsify the state of the world at a cost. We characterize receiver‐optimal tests and show they rely on productive falsification by compliant states. They work by setting a more stringent operational standard, and granting noncompliant states a positive approval

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Arévalo Peña, Javier Enrique. "Eficiencia de sistemas multiantena MU–MIMO por simulaciones de radiopropagación." Visión electrónica 11, no. 1 (2017): 55–62. http://dx.doi.org/10.14483/22484728.8796.

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El presente artículo tiene como propósito realizar la descripción de los resultados de simulación de radiopropagación con una antena MU{MIMO (4x4) en una red LTE (del inglés Long Term Evolution), con el fin de establecer su eciencia respecto a una antena estándar. En esta vía, se emplea la herramienta de diseño de redes inalámbricas ICS Designer en la cartografía digital de alta resolución en un escenario urbano de la ciudad de Bogotá D.C., Colombia. Se utiliza el modelo 3GPP LTE en la simulación de la red LTE y se analizan los parametros RSRP (del inglés, Reference Signal Received Power), RSR

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Dygalo, Nikolai N. "Connectivity of the Brain in the Light of Chemogenetic Modulation of Neuronal Activity." Acta Naturae 15, no. 2 (2023): 4–13. http://dx.doi.org/10.32607/actanaturae.11895.

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Connectivity is the coordinated activity of the neuronal networks responsible for brain functions; it is detected based on functional magnetic resonance imaging signals that depend on the oxygen level in the blood (blood oxygen level-dependent (BOLD) signals) supplying the brain. The BOLD signal is only indirectly related to the underlying neuronal activity; therefore, it remains an open question whether connectivity and changes in it are only manifestations of normal and pathological states of the brain or they are, to some extent, the causes of these states. The creation of chemogenetic rece

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Yuan, Weiquan, Steven A. Johnson, Michael J. Berggren, and Richard S. Eidens. "A Concave Annular Array Design, Based on Phasor Summation — Part I: Design Methodology." Ultrasonic Imaging 10, no. 4 (1988): 275–86. http://dx.doi.org/10.1177/016173468801000404.

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A detailed method for the design of anular arrays based on phasor summation is developed. The net phase shift across each annulus obtained by phasor summation is a very important factor in the design of an annular array, and determines the strength of the signal received. The method presented in this paper allows the designer to evaluate the trade-offs in parameters such as the strength of the signal from each annulus, the efficiency of each annulus, and the depth of focus that would be achievable. A concave annular array has been fabricated according to this design method. A set of graphs are

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Alex Thomas, Nikhil, Sanket Dessai, S. G. ShivaPrasad Yadav, and Shilpa Chaudhari. "Design and Development of ARM9 Evaluation Kit for Embedded Applications." International Journal of Reconfigurable and Embedded Systems (IJRES) 3, no. 2 (2014): 62. http://dx.doi.org/10.11591/ijres.v3.i2.pp62-75.

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In contrast with low end microprocessor, ARM9 core is quite a sophisticated processor. The Evaluation kit plays an important role in the prototype development and verification of the system design before taking to its actual system development hence it’s provide better confidence to the designer. In this paper a project for the Evaluation kit has been designed for embedded system engineer to implement and confirm the functionality of their operating systems which could lead to a comfortable deployment. The independent modules for the interfaces of the ARM9 processor have been designed and the

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Shen, Ya-hui, Ya-jun Wang, and Fang Yang. "Research on Simulation System of Microgrids based on STM32." March 2023 5, no. 1 (2023): 35–53. http://dx.doi.org/10.36548/jei.2023.1.003.

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With the gradual depletion of traditional fossil energy and the increasing demand for electricity, finding new energy sources has become the only way for sustainable development. Microgrid is becoming an important auxiliary power for some developed and developing countries to solve the supply problem of energy system, which can not only effectively improve the overall utilization rate of renewable energy, but also improve the power supply reliability of the main grid. In this paper, the hardware circuit and software control of microgrid simulation system based on STM32 are studied and designed

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Ramos, G. A., Ramon Costa-Castelló, and John Cortés-Romero. "LPV Observer-Based Strategy for Rejection of Periodic Disturbances with Time-Varying Frequency." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/380609.

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Rejection of periodic disturbances is an important issue in control theory and engineering applications. Conventional strategies like repetitive control and resonant control can deal adequately with this problem but they fail when the frequency of the disturbance varies with time. This paper proposes a Linear Parameter Varying (LPV) resonant observer-based control for periodic signal rejection which is able to deal with the changes in frequency of the disturbance signal. The observer includes, in an embedded way, an internal model of the disturbance that is based on its harmonic decomposition.

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Lyu, Ming, Jian Zhao, Najib Kacem, Rigumala Wu, Xiang Zhi, and Rongjian Sun. "Experimental Investigation of Nonlinear Modulation Characteristics of Mode Localization in Electrostatic Coupled Resonators." Journal of Physics: Conference Series 2740, no. 1 (2024): 012037. http://dx.doi.org/10.1088/1742-6596/2740/1/012037.

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Abstract This paper focuses on the typical configuration of double ended fixed supported electrostatic coupled resonators in mode localization phenomena, and conducts in-depth research on the influence of nonlinear coefficients in electrostatic coupled resonators on their vibration behavior. Firstly, the designed devices are processed based on the standard process of SOI, and the printed circuit board (PCB) of the test circuit is designed using Altium Designer software to connect external circuits with the tested device. Secondly, the working principles of electrostatic drive and capacitance d

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Smart, Stephen, Keke Wu, and Danielle Albers Szafir. "Color Crafting: Automating the Construction of Designer Quality Color Ramps." IEEE Transactions on Visualization and Computer Graphics 26, no. 1 (2020): 1215–25. http://dx.doi.org/10.1109/tvcg.2019.2934284.

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Mei, Victoria, Marta Concheiro, Justine Pardi, and Gail Cooper. "Validation of an LC-MS/MS Method for the Quantification of 13 Designer Benzodiazepines in Blood." Journal of Analytical Toxicology 43, no. 9 (2019): 688–95. http://dx.doi.org/10.1093/jat/bkz063.

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Abstract The misuse of designer benzodiazepines, as an alternative to prescription benzodiazepines and for drug-facilitated sexual assaults, has emerged as a growing threat, due in part to the ease of purchasing these drugs on the internet at low prices. Causing concern for safety is the lack of dosage information resulting in users self-medicating, often leading to unintended overdoses, coma or death at higher doses. With limited published data regarding the quantification of designer benzodiazepines in forensic cases, a method was validated for the determination of 13 designer benzodiazepine

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S.Govindaraj and G.Lakshmi. "RePhoSim: A Scalable, Modular, and Signal Flow Modeling Approach for Large Scale Integrated Photonic Circuits." Spectrum International Journal of Multidisciplinary Research 1, no. 1 (2023): 1–8. https://doi.org/10.5281/zenodo.8162907.

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Due to the complexity in the rigorous electromagnetic simulation (EM) the design and verification of large scale integrated photonic circuits require approximate numerical simulations. In this article a reconfigurable photonic simulation (RePhoSim) approach is proposed based on traditional VLSI front end functional simulation approach. The evolution of photonic integrated circuits (ICs) become larger and more complex, demands design and simulation approaches similar to electronic design automation (EDA) tools. In VLSI electronic circuits, the functional simulation is accomplished by hardware d

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Meyer, James. "System in Package Design Case Study." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2015, DPC (2015): 000973–94. http://dx.doi.org/10.4071/2015dpc-tp52.

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In today's world, electronics need to be as small as possible. This is especially true for a wide range of electronics from UAV controllers, cellphones, to implantable medical devices. One approach to achieving small system size is the System in Package (SIP). This approach incorporates a complete system (processor, memory, etc) into one small package. On the SIP, packaged parts are replaced by dies directly mounted to the substrate via flip-chip or wire-bond technology. SIP allows the designer flexibility to create a small system with only functionality that is required. A designer can pick a

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Aboud Hashem, Muneer. "System Response Analysis of Linear Time Invariant Multistage Feedback Amplifier Network." University of Thi-Qar Journal for Engineering Sciences 2, no. 4 (2011): 96–115. http://dx.doi.org/10.31663/utjes.v2i4.163.

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The analysis of voltage series multistage feedback amplifier network is achieved by evaluating the nodal admittance matrix of the equivalent circuit representing the replacing of each transistor in a stage by its high frequency small-signal model and the performing of the high order voltage transfer function of the system. The main reasons of treating such a wide-band amplifier network are of its stabilized voltage gain and its ability to amplify the pulses occurring in a television signal. The frequency response of the system is calculated and confirmed. System dynamics and variation of input

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Mirkovic, Dejan, та Predrag Petkovic. "Design automation of ΔΣ switched capacitor modulators using spice and MATLAB". Serbian Journal of Electrical Engineering 11, № 1 (2014): 47–59. http://dx.doi.org/10.2298/sjee131017005m.

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Concerning the fact that the design of contemporary integrated circuits (IC) is practically impossible without using sophisticated Electronic Design Automation (EDA) software, this paper gives some interesting thoughts and considerations about that issue. As technology processes advances on year basis consequently EDA industry is forced to follow this trend as well. This, on the other hand, requires IC designer to frequently and efficiently accommodate to new working environments. Authors of this paper suggest a method for high level circuit analysis that is based on using common (open source

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Guo, Hong Che, Jun Bao Ma, Qiu Hao Zhang, and Jun You Yang. "Design of Intelligent Rehabilitation Crutch Based on Accelerometer." Advanced Materials Research 383-390 (November 2011): 5751–57. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.5751.

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In order to meet the daily needs of the elderly patients and walking ability of injury rehabilitation, design an intelligent rehabilitation crutch. This design combine with empowered walking aid’s mechanical features and robot technology, its signal is collected by MMA7260 accelerometer, this greatly improved the sensitivity direction without swerve on the plane through the analysis of the acceleration signal processing and controlling the velocity composition of three omnidirectional wheel rounds of synthesis of all to realize the intelligent walking stick of the whole direction and intellect

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Mironov, V., J. Zhang, C. Gentile, et al. "Designer ‘blueprint’ for vascular trees: morphology evolution of vascular tissue constructs." Virtual and Physical Prototyping 4, no. 2 (2009): 63–74. http://dx.doi.org/10.1080/17452750802657202.

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Das, Bhagwan, Nawaz Ali Zardari, Farah Deeba, and Dileep Kumar Ramnani. "Design and Development of GUI for the Mitigation of Chromatic Dispersion: A New Approach." Sukkur IBA Journal of Emerging Technologies 5, no. 1 (2022): 19–31. http://dx.doi.org/10.30537/sjet.v5i1.937.

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Chromatic Dispersion (CD) is the important effect that is considering for optical communication system design as it broadens the pulse during the propagation along channel resulting in pulse overlapping and ultimately bit errors raises. The increment in bit error, in result reduce the performance of optical system. Therefore, mitigation CD is necessary in order to improve the performance of optical communication system. There are several techniques of mitigating CD have been proposed and all based on coding based and this will create issues for the communication design engineer that every time

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