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Journal articles on the topic 'Digital techniques. eng'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Abdullah Salman Alsalman, Abdullah Salman Alsalman. "Comparative Study of Change Detection and Urban Expansion Using Multi-Date Multi-Source Data: A Case Study of Greater Khartoum." journal of King Abdulaziz University Engineering Sciences 23, no. 2 (2012): 139–72. http://dx.doi.org/10.4197/eng.23-2.8.

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Noting that Khartoum represents the most rapidly expanding city in the Sudan and taking into account that change detection operations are seldom , the present study has been initiated to attempt to produce work that synthesizes land use/land cover (LULC) to investigate change detection using GIS, remote sensing data and digital image processing techniques; estimate, evaluate and map changes that took place in the city from 1975 to 2003. The experiment used the techniques of visual inspection, write-function-memoryinsertion, image differencing, image transformation i.e. normalized difference ve

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Picone, R., and L. Veronese. "SPECIFITY OF HISTORICAL BUILDINGS AND BIM METHODOLOGIES. A FIRST EXPERIMENTATION FOR THE FEDERICO II HEADQUARTERS IN NAPLES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W11 (May 5, 2019): 961–68. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w11-961-2019.

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<p><strong>Abstract.</strong> The <i>Building Information Modeling</i> is today one of the most advanced data cataloging and processing systems aimed to the digital representation of physical and functional characteristics of an object. These prerogatives make possible to create a model containing not only the geometric-architectural data of the building, but also the properties of the materials and technical elements that compose it, the construction phases, as well as maintenance operations, locating and programming them over time. Such an approach implies, ther

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Rosenthal, Ronald. "Techniques to Manage ECG Artifacts When Working With Surface EMG." Biofeedback 48, no. 4 (2020): 80–84. http://dx.doi.org/10.5298/1081-5937-48.04.02.

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Surface electromyographic (SEMG) amplitude signals can often contain rhythmic spikes due to cardiogenic electrical activity. The author discusses the impact of this activity on SEMG biofeedback training and techniques to reduce the problems caused by cardiogenic electrical activity. In particular, changing the low frequency cutoff of the digital filter settings to reduce cardiogenic electrical activity is recommended as a procedure to improve the fidelity of SEMG amplitude signals.

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Aboshoosha, Ashraf, M. Ragaa, and B. Mashad. "Improved Auto Detection of Calcification in Digital Mammogram Relying on Multi-Stage CAD Technique." مجلة جامعة الملك عبدالعزيز-العلوم الهندسية 22, no. 2 (2011): 171–84. http://dx.doi.org/10.4197/eng.22-2.9.

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BRUNO, DIETER, FERNANDO C. DELVECCHIO, and GLENN M. PREMINGER. "Techniques in Endourology Digital Still Image Recording during Video Endoscopy." Journal of Endourology 13, no. 5 (1999): 353–57. http://dx.doi.org/10.1089/end.1999.13.353.

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Vieira, Filipe Gomes, Alexandre S. Scari, Pedro Américo Almeida Magalhães Júnior, Jordana S. R. Martins, and Cristina Almeida Magalhães. "Analysis of Stresses in a Tapered Roller Bearing Using Three-Dimensional Photoelasticity and Stereolithography." Materials 12, no. 20 (2019): 3427. http://dx.doi.org/10.3390/ma12203427.

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Digital photoelasticity is an important segment of optical metrology for stress analysis by digital photographic images. Advances in digital image processing, data acquisition, standard recognition and data storage allow the utilization of computer-aided techniques in the automation and improvement of the digital photoelastic technique. The objective of this study is to develop new techniques using 3D rapid prototyping with transparent resins in digital photoelasticity. Some innovations are proposed (e.g., a tapered roller bearing built with 3D rapid prototyping with transparent resin and the

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Brimacombe, Joseph, Christian Keller, and Dana Vosoba Judd. "Gum Elastic Bougie-guided Insertion of the ProSeal™ Laryngeal Mask Airway Is Superior to the Digital and Introducer Tool Techniques." Anesthesiology 100, no. 1 (2004): 25–29. http://dx.doi.org/10.1097/00000542-200401000-00008.

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Background The authors compare three techniques for insertion of the ProSeal laryngeal mask airway. Methods Two hundred forty healthy patients aged 18-80 yr were randomly allocated for ProSeal laryngeal mask airway insertion using the digital, introducer tool (IT), or gum elastic bougie (GEB)-guided techniques. The digital and IT techniques were performed according to the manufacturer's instructions. The GEB-guided technique involved priming the drain tube with the GEB, placing the GEB in the esophagus under direct vision, and inserting the ProSeal laryngeal mask airway using the digital techn

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Biancolini, Marco Evangelos, Katia Capellini, Emiliano Costa, Corrado Groth, and Simona Celi. "Fast interactive CFD evaluation of hemodynamics assisted by RBF mesh morphing and reduced order models: the case of aTAA modelling." International Journal on Interactive Design and Manufacturing (IJIDeM) 14, no. 4 (2020): 1227–38. http://dx.doi.org/10.1007/s12008-020-00694-5.

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AbstractThe medical digital twin is emerging as a viable opportunity to provide patient-specific information useful for treatment, prevention and surgical planning. A bottleneck toward its effective use when computational fluid dynamics (CFD) techniques and tools are adopted for the high fidelity prediction of blood flow, is the significant computing cost required. Reduced order models (ROM) looks to be a promising solution for facing the aforementioned limit. In fact, once ROM data processing is accomplished, the consumption stage can be performed outside the computer-aided engineering softwa

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Paprottka, Felix J., Petra Wolf, Yves Harder, et al. "Sensory Recovery Outcome after Digital Nerve Repair in Relation to Different Reconstructive Techniques: Meta-Analysis and Systematic Review." Plastic Surgery International 2013 (July 30, 2013): 1–17. http://dx.doi.org/10.1155/2013/704589.

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Good clinical outcome after digital nerve repair is highly relevant for proper hand function and has a significant socioeconomic impact. However, level of evidence for competing surgical techniques is low. The aim is to summarize and compare the outcomes of digital nerve repair with different methods (end-to-end and end-to-side coaptations, nerve grafts, artificial conduit-, vein-, muscle, and muscle-in-vein reconstructions, and replantations) to provide an aid for choosing an individual technique of nerve reconstruction and to create reference values of standard repair for nonrandomized clini

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Cicciù, Marco, Luca Fiorillo, Cesare D’Amico, et al. "3D Digital Impression Systems Compared with Traditional Techniques in Dentistry: A Recent Data Systematic Review." Materials 13, no. 8 (2020): 1982. http://dx.doi.org/10.3390/ma13081982.

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The advent of new technologies in the field of medicine and dentistry is giving improvements that lead the clinicians to have materials and procedures able to improve patients’ quality of life. In dentistry, the last digital techniques offer a fully digital computerized workflow that does not include the standard multiple traditional phases. The purpose of this study is to evaluate all clinical trials and clinical randomized trials related to the digital or dental impression technique in prosthetic dentistry trying to give the readers global information about advantages and disadvantages of ea

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Omar, Siti Nashayu. "Application of digital signal processing and machine learning for Electromyography: A review." Asian Journal Of Medical Technology 1, no. 1 (2021): 30–45. http://dx.doi.org/10.32896/ajmedtech.v1n1.30-45.

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This paper reviewed the Application of Digital Signal Processing (DPS) and Machine Learning (ML) for Electromyography (EMG) by previous studies. There is a need of the DSP and ML application into the EMG study to classify the signal in order to minimize the EMG noise of signal and the EMG signal characteristic. The common techniques analysis of signal processing is disccussed and compared to identify the best techniques used in order to process from raw data of EMG signal info EMG signal analysis, then some types of machine learning is discussed to identify which types of machine learning have

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Mahajan, Sakshi, and Navneet Bawa. "Digital Image Filtering Techniques- A survey." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 10, no. 6 (2013): 1738–42. http://dx.doi.org/10.24297/ijct.v10i6.7024.

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This paper presents a review on digital image filtering techniques. The main emphasis is on median filtering and its extended versions like hybrid median filtering, relaxed median filtering etc. It is found that still median filtering demands some sort of enhancements as it is best for salt and pepper noise only. By conducting a survey suitable gaps are found in existing literature. In the end comparison table is also drawn among the existing techniques.

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Rico, P., and P. Aranguren. "Comparative Study of the Frontal EGG Activity After Superficial Neuro-stimulation Application, Mindfulness and Other Attentional Techniques." European Psychiatry 41, S1 (2017): S637—S638. http://dx.doi.org/10.1016/j.eurpsy.2017.01.1048.

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IntroductionChanges in the electrical cerebral activity, especially in frontotemporal regions, have been described after using the Superficial Neurostimulation Application (SNSA) in upper and lower limbs. The use of this technique is associated with emotional equilibrium and predisposition for a positive mood. Its application clinically improves hostility and anxiety symptoms.AimsTo compare the electrical changes observed after the use of SNSA with other techniques of mental concentration: Mindfulness (mental attention without judgment) and a technique based on the emission of a sound.Material

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Ojowu, Ode, Johan Karlsson, Jian Li, and Yilu Liu. "ENF Extraction From Digital Recordings Using Adaptive Techniques and Frequency Tracking." IEEE Transactions on Information Forensics and Security 7, no. 4 (2012): 1330–38. http://dx.doi.org/10.1109/tifs.2012.2197391.

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Pandey, Anukul, Barjinder Singh Saini, and Butta Singh. "ELECTROCARDIOGRAM DATA COMPRESSION TECHNIQUES IN 1D/2D DOMAIN." Biomedical Engineering: Applications, Basis and Communications 33, no. 02 (2021): 2150011. http://dx.doi.org/10.4015/s1016237221500113.

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Electrocardiogram (ECG) is one of the best representatives of physiological signal that provides the state of the autonomic nervous system, primarily responsible for the cardiac activity. The ECG data compression plays a significant role in localized digital storage or efficient communication channel utilization in telemedicine applications. The lossless and lossy compression system’s compressor efficiency depends on the methodologies used for compression and the quality measure used to evaluate distortion. Based on domain ECG, data compression can be performed either one-dimensional (1D) or t

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Buchanan, S., J. Triantafilis, I. O. A. Odeh, and R. Subansinghe. "Digital soil mapping of compositional particle-size fractions using proximal and remotely sensed ancillary data." GEOPHYSICS 77, no. 4 (2012): WB201—WB211. http://dx.doi.org/10.1190/geo2012-0053.1.

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The soil particle-size fractions (PSFs) are one of the most important attributes to influence soil physical (e.g., soil hydraulic properties) and chemical (e.g., cation exchange) processes. There is an increasing need, therefore, for high-resolution digital prediction of PSFs to improve our ability to manage agricultural land. Consequently, use of ancillary data to make cheaper high-resolution predictions of soil properties is becoming popular. This approach is known as “digital soil mapping.” However, most commonly employed techniques (e.g., multiple linear regression or MLR) do not consider

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Manosueb, Anchalee, Jeerasuda Koseeyaporn, and Paramote Wardkein. "PLI Cancellation in ECG Signal Based on Adaptive Filter by Using Wiener-Hopf Equation for Providing Initial Condition." Computational and Mathematical Methods in Medicine 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/471409.

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This paper presents a technique for finding the optimal initial weight for adaptive filter by using difference equation. The obtained analytical response of the system identifies the appropriate weights for the system and shows that the MSE depends on the initial weight. The proposed technique is applied to eliminate the known frequency power line interference (PLI) signal in the electrocardiogram (ECG) signal. The PLI signal is considered as a combination of cosine and sine signals. The adaptive filter, therefore, attempts to adjust the amplitude of cosine and sine signals to synthesize a ref

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Lautenschlager, Stephan. "DIGITAL RECONSTRUCTION OF SOFT-TISSUE STRUCTURES IN FOSSILS." Paleontological Society Papers 22 (September 2016): 101–17. http://dx.doi.org/10.1017/scs.2017.10.

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AbstractIn the last two decades, advances in computational imaging techniques and digital visualization have created novel avenues for the study of fossil organisms. As a result, paleontology has undergone a shift from the pure study of physically preserved bones and teeth, and other hard tissues, to using virtual computer models to study specimens in greater detail, restore incomplete specimens, and perform biomechanical analyses. The rapidly increasing application of these techniques has further paved the way for the digital reconstruction of soft-tissue structures, which are rarely preserve

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Georgantzoglou, A., M. J. Merchant, J. C. G. Jeynes, A. C. Wera, and R. Jena. "76: Digital Image Processing Techniques for Application in a Microbeam End-Station Microscopy." Radiotherapy and Oncology 110 (February 2014): S38. http://dx.doi.org/10.1016/s0167-8140(15)34097-4.

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Lamo, Paula, Angel de Castro, Alberto Sanchez, Gustavo A. Ruiz, Francisco J. Azcondo, and Alberto Pigazo. "Hardware-in-the-Loop and Digital Control Techniques Applied to Single-Phase PFC Converters." Electronics 10, no. 13 (2021): 1563. http://dx.doi.org/10.3390/electronics10131563.

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Power electronic converters for power factor correction (PFC) play a key role in single-phase electrical power systems, ensuring that the line current waveform complies with the applicable standards and grid codes while regulating the DC voltage. Its verification implies significant complexity and cost, since it requires long simulations to verify its behavior, for around hundreds of milliseconds. The development and test of the controller include nominal, abnormal and fault conditions in which the equipment could be damaged. Hardware-in-the-loop (HIL) is a cost-effective technique that allows

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Junaid, Muhammad, Asadullah Shaikh, Mahmood Ul Hassan, et al. "Smart Agriculture Cloud Using AI Based Techniques." Energies 14, no. 16 (2021): 5129. http://dx.doi.org/10.3390/en14165129.

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This research proposes a generic smart cloud-based system in order to accommodate multiple scenarios where agriculture farms using Internet of Things (IoTs) need to be monitored remotely. The real-time and stored data are analyzed by specialists and farmers. The cloud acts as a central digital data store where information is collected from diverse sources in huge volumes and variety, such as audio, video, image, text, and digital maps. Artificial Intelligence (AI) based machine learning models such as Support Vector Machine (SVM), which is one of many classification types, are used to accurate

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Chatterjee, Runa, Rajdeep Chakraborty, and Mondal J.K. "DESIGN OF LIGHTWEIGHT CRYPTOGRAPHIC MODEL FOR END-TO-END ENCRYPTION IN IOT DOMAIN." IRO Journal on Sustainable Wireless Systems 1, no. 04 (2019): 215–24. http://dx.doi.org/10.36548/jsws.2019.4.002.

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Digitalization rapidly connected the entire world. Everyday an enormous volumes of digital data produced by billions of intelligent devices which requires safe transmission over internet. If we look into embedded environment, handling massive volume of data is impractical for low power and low memory devices which leads to lightweight concept. The proposed lightweight model includes many symmetric key sequentially. The model follows fiestel network structure where 64 bits input block divided by two 32 bits blocks. Then every half undergoes through various symmetric key algorithms like TE (Tria

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Thalheimer, Raquel D., Vanessa L. Merker, K. Ina Ly, et al. "Validating Techniques for Measurement of Cutaneous Neurofibromas." Neurology 97, no. 7 Supplement 1 (2021): S32—S41. http://dx.doi.org/10.1212/wnl.0000000000012428.

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ObjectiveTo assess the reliability and variability of digital calipers, 3D photography, and high-frequency ultrasound (HFUS) for measurement of cutaneous neurofibromas (cNF) in patients with neurofibromatosis type 1 (NF1).BackgroundcNF affect virtually all patients with NF1 and are a major source of morbidity. Reliable techniques for measuring cNF are needed to develop therapies for these tumors.MethodsAdults with NF1 were recruited. For each participant, 6 cNF were assessed independently by 3 different examiners at 5 different time points using digital calipers, 3D photography, and HFUS. The

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Cao, Hong Rui, Bing Li, and Zheng Jia He. "Study on Modeling of Digital Machining Process and its Condition Monitoring & Diagnosis Method." Advanced Materials Research 411 (November 2011): 622–25. http://dx.doi.org/10.4028/www.scientific.net/amr.411.622.

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Based on a cutting dynamics model, a new digital machining process model that integrates workpiece quality and machining condition information is proposed, and the mapping relationship between machine tool structural dynamics and product quality information (e.g., dimension error, surface shape) is analyzed in detail. On the basis of the digital machining process model, the condition monitoring and fault diagnosis method of the machining process is investigated, and an implementation flowchart of the method is proposed with explanations of critical techniques. Finally, the proposed model is ap

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Borel, Andžej, Vaidotas Barzdėnas, and Aleksandr Vasjanov. "Linearization as a Solution for Power Amplifier Imperfections: A Review of Methods." Electronics 10, no. 9 (2021): 1073. http://dx.doi.org/10.3390/electronics10091073.

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Development of 5G networks requires a substantial increase to both spectral and power efficiency of transmitters. It is known that these two parameters are subjected to a mutual trade-off. To increase the linearity without losing power efficiency, linearization techniques are applied to power amplifiers. This paper aims to compare most popular linearization techniques to date and evaluate their applicability to upcoming 5G networks. The history of each respective linearization technique is followed by the main principle of operation, revealing advantages and disadvantages supported by concludi

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SHI, X. Q., J. P. PICKERING, and C. K. WONG. "ATOMIC FORCE MICROSCOPE (AFM)-BASED DIGITAL IMAGE SPECKLE CORRELATION (DiSC) TECHNIQUE FOR THE MEASUREMENT OF DEFORMATION IN NANOSCALE." International Journal of Nanoscience 03, no. 06 (2004): 789–95. http://dx.doi.org/10.1142/s0219581x04002681.

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Experimental measurement techniques for the determination of stress levels and distributions will be one of most important keys for the optimization of the design of the next generation electronic packages, e.g., nano-wafer-level packages. However, current experimental photo-mechanics techniques are often found to be insufficiently sensitive but also lacking in sufficient resolution to determine stress distributions of nanoscale electronic packages. In this study, the digital image speckle correlation method was combined with the atomic force microscopy (AFM) to develop a new experimental meas

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Asadi, V., M. Raoufat, and S. Nassiri. "Fresh egg mass estimation using machine vision technique." International Agrophysics 26, no. 3 (2012): 229–34. http://dx.doi.org/10.2478/v10247-012-0034-6.

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Fresh egg mass estimation using machine vision technique In the present study a machine vision system was developed for estimating the mass of eggs arranged in a single array. A grabber frame equipped with a mirror was developed for positioning the eggs. Therefore, two images could be captured from each egg. Images were then processed by Matlab software. Six algorithms were developed to extract eggs features such as minimum, maximum and effective radii, perimeter and the frontal area from each image. The eggs were also weighed by a sensitive digital scale. Seventy percent of data after discard

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Gopalakrishnan Nair, T. R., A. P. Geetha, and M. Asharani. "Continuous digital ECG analysis over accurate R-peak detection using adaptive wavelet technique." Journal of Medical Engineering & Technology 37, no. 7 (2013): 429–35. http://dx.doi.org/10.3109/03091902.2013.828105.

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Aroukatos, Nikolaos Georgios, Kostas Manes, Stelios Zimeras, and Fotis Georgiakodis. "Techniques in Image Steganography using Famous Number Sequences." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 11, no. 3 (2013): 2321–29. http://dx.doi.org/10.24297/ijct.v11i3.1167.

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In In the last decades, Steganography techniques have been applied in a variety of data files. The need of copyrightprotection in Music, in Photography e.t.c pushed the software companies to develop many steganographic systemswhich they use, in various areas, e.g., in digital assets (DRM). In this paper, we propose a number of methods forimage steganography using Catalan numbers and Lucas numbers and we show that they produce better resultsthan the technique using Fibonacci numbers. We are able to use Catalan and Lucas numbers since we haveproved that these sets of numbers satisfy similar cond

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Nedomová, Šárka, and Jaroslav Buchar. "Ostrich eggs geometry." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 61, no. 3 (2013): 735–42. http://dx.doi.org/10.11118/actaun201361030735.

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Precise quantification of the profile of egg can provide a powerful tool for the analysis of egg shape for various biological problems. A new approach to the geometry of a Ostrich’s egg profile is presented here using an analysing the egg’s digital photo by edge detection techniques. The obtained points on the eggshell counter are fitted by the Fourier series. The obtained equations describing an egg profile have been used to calculate radii of curvature. The radii of the curvature at the important point of the egg profile (sharp end, blunt end and maximum thickness) are independent on the egg

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Du, Xiu Li, Shi Wei Hou, De Chun Lu, and Xing Lei Cheng. "Shear Band Analysis of Sand Based on Digital Image Processing Technique." Advanced Materials Research 243-249 (May 2011): 2670–78. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.2670.

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A series of drained tests of ISO medium sand were performed to study the onset and formation of shear band. Using the digital image processing technique, the multifunctional triaxial equipment of GDS was improved. Strain isogram and local stress-strain relation at every sampling time point were recorded based on the improved equipment. The onset of shear band was from inhomogeneity of soil, while the inhomogeneous deformation can be induced by end friction and initial defect. Based on results of global stress-strain and local stress-strain relation, the end friction effect was found to have a

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Gharechelou, Saeid, Ryutaro Tateishi, and Brian A. Johnson. "A Simple Method for the Parameterization of Surface Roughness from Microwave Remote Sensing." Remote Sensing 10, no. 11 (2018): 1711. http://dx.doi.org/10.3390/rs10111711.

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Generally, the characterization of land surface roughness is obtained from the analysis of height variations observed along transects (e.g., root mean square (RMS) height, correlation length, and autocorrelation function). These surface roughness measurements are then used as inputs for surface dynamics modeling, e.g., for soil erosion modeling, runoff estimation, and microwave remote sensing scattering modeling and calibration. In the past, researchers have suggested various methods for estimating roughness parameters based on ground measurements, e.g., using a pin profilometer, but these met

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Georgieva-Tsaneva, G. "Application of Mathematical Methods for Analysis of Digital ECG Data." Information Technologies and Control 14, no. 2 (2016): 35–44. http://dx.doi.org/10.1515/itc-2017-0005.

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AbstractThis paper presents several mathematical methods for analysis of electrocardiogram digital data. The measurement of beat to beat fluctuations known as Heart Rate Variability becomes a non-invasive diagnostic technique to study the cardiac autonomic regulation. The analysis was done by software developed by the author. The article presents the results of linear methods, nonlinear methods and wavelet analysis of Heart Rate Variability data in healthy and diseased subjects. The obtained results and the performed comparative analysis demonstrate the possibility for effective application of

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Sun, Koun-Tem, Chun-Huang Wang, and Ming-Chi Liu. "Stop-motion to foster digital literacy in Elementary School." Comunicar 25, no. 51 (2017): 93–103. http://dx.doi.org/10.3916/c51-2017-09.

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Although digital media literacy is recognized as the essential competencies required for living in a new media age, it just starts to gain focus in Taiwan's elementary education. One of the reasons is examination-oriented education, with the result that diverts scarce resources away from this informal learning. The other reason is that educators tend to think digital media education as a series of purely technical operation, which might lead student digital media learning to mindless work. Therefore, this study designed a media exhibition based on Kolb's experiential learning model for teachin

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Smith, R. M., G. J. Privett, S. Phillipps, and J. I. Davies. "Automatic Detection of Low-Surface Brightness Galaxies on Digital Images." Symposium - International Astronomical Union 161 (1994): 549–52. http://dx.doi.org/10.1017/s0074180900048063.

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Algorithms employed to identify and quantify images on digitised images mostly employ contiguous-pixel (e.g. PISA [based on APM software by Irwin {1985}]) or median-filtering techniques and thus miss extended low surface-brightness features. Searches for low surface brightness galaxies (LSBGs) have therefore so far concentrated on eye-ball searches of Schmidt survey plates. To overcome the subjectiveness of eyeball searches and eliminate the inherent problems in current object-detection algorithms we have investigated other techniques.

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Radfar, Mohsen, Kriyang Shah, and Jugdutt Singh. "Recent Subthreshold Design Techniques." Active and Passive Electronic Components 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/926753.

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Considering the variety of studies that have been reported in low-power designing era, the subthreshold design trend in Very Large Scale Integrated (VLSI) circuits has experienced a significant development in recent years. Growing need for the lowest power consumption has been the primary motivation for increase in research in this area although other goals, such as lowest energy delay production, have also been achieved through sub-threshold design. There are, however, few extensive studies that provide a comprehensive design insight to catch up with the rapid pace and large-scale implementat

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Бессарабов, Владислав. "Полицентричная модель методик обеспечения экономической безопасности предпринимательской деятельности". ИЗВЕСТИЯ ДАЛЬНЕВОСТОЧНОГО ФЕДЕРАЛЬНОГО УНИВЕРСИТЕТА. ЭКОНОМИКА И УПРАВЛЕНИЕ, № 3 (2020): 137–49. http://dx.doi.org/10.24866/2311-2271/2020-3/137-149.

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В статье рассмотрены современные особенности методологии обеспечения экономической безопасности предпринимательской деятельности и обоснованы ее компоненты. Гармоничное применение методов исследования (от анализа до моделирования) позволило разработать полицентричную модель методик обеспечения экономической безопасности предпринимательской деятельности, которая выступает в качестве компоненты ее единой методологии, отличающейся направленностью элементов на выявление, оценку и противодействие ее угрозам, а также соответствующей современным атрибутам цифровизации экономики. In the course of the

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Basran, P. S., M. Wieland, and I. R. Porter. "Technical note: A digital technique and platform for assessing dairy cow teat-end condition." Journal of Dairy Science 103, no. 11 (2020): 10703–8. http://dx.doi.org/10.3168/jds.2020-18667.

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Buch, Kaushal D., Shruti Bhatporia, Yashwant Gupta, et al. "Towards Real-Time Impulsive RFI Mitigation for Radio Telescopes." Journal of Astronomical Instrumentation 05, no. 04 (2016): 1641018. http://dx.doi.org/10.1142/s225117171641018x.

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Radio Frequency Interference (RFI) is a growing concern for contemporary radio telescopes. This paper describes techniques for real-time threshold-based detection and filtering of broadband and narrowband RFI for the correlator and beamformer chains of a telescope back-end, with specific applications to the upgraded Giant Meterwave Radio Telescope (uGMRT). The Median Absolute Deviation (MAD) estimator is used for robust estimation of dispersion of the received signal in temporal and spectral domains. Results from the tests carried out for the GMRT wide-band backend (GWB) using this technique s

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Luengo, Oscar, Javier García-Marín, and Emiliana de-Blasio. "COVID-19 on YouTube: Debates and polarisation in the digital sphere." Comunicar 29, no. 69 (2021): 9–19. http://dx.doi.org/10.3916/c69-2021-01.

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Social media has significantly transformed how political discussions and deliberations occur, mainly by providing a digital realm for the public sphere. This study aims to analyse the extent of polarised opinions across Spain, Italy and the United Kingdom regarding COVID-19 during 2020 within social media. To do this, we examined YouTube comments (n=111,808) using automatic analysis and machine-learning techniques based on algorithms. This methodological strategy denoted an innovative and unique quantitative approach for this field of study. In line with previous research, the hypothesis was t

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Mustafa, Andam, and Michał Szydłowski. "Application of different building representation techniques in HEC-RAS 2-D for urban flood modeling using the Toce River experimental case." PeerJ 9 (July 2, 2021): e11667. http://dx.doi.org/10.7717/peerj.11667.

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This paper presents the impact of the choice of building representation techniques and hydrodynamic models on urban flood simulations using HEC-RAS 2-D for the Toce River physical model. To this end, eight numerical models based on previous laboratory experiments were prepared to simulate unsteady urban flooding on each side of building units. Two simplified building layouts (aligned and staggered) were examined, where models were prepared for two different building representation techniques: Building Block (BB) and Building Resistance (BR). Water depth variation computations using the BR and

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Ravim and Suma K. V. "Low Noise EEG Amplifier Board for Low Cost Wearable BCI Devices." International Journal of Biomedical and Clinical Engineering 5, no. 2 (2016): 17–28. http://dx.doi.org/10.4018/ijbce.2016070102.

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Designing a real-time BCI device requires an Electroencephalogram (EEG) acquisition system and a signal processing system to process that acquired data. EEG acquisition boards available in market are expensive and they are required to be connected to computer for any processing work. Various low cost Digital Signal Processor (DSP) boards available in market come with internal Analog to Digital converters and peripheral interfaces. The idea is to design a low cost EEG amplifier board that can be used with these commercially available DSP boards. The analog data from EEG amplifier can be convert

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Alharthi, Mariam, and Fahad Alqurashi. "Comparison of query optimization techniques in content based image retrieval (CBIR)." International Journal of Applied Mathematical Research 8, no. 1 (2019): 20. http://dx.doi.org/10.14419/ijamr.v8i1.29435.

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With increasing the popularity of World Wide Web, storing digital contents increases enormously, in that case, it is important to implement convenient information systems which manage the collections of these digital contents efficiently. This paper concentrates on hastening techniques for efficient retrieval of images. Content-Based Image Retrieval (CBIR) systems are used by common approaches. These systems support retrieving similar images depend on content properties (e.g., color, shape, and texture) by retrieving automatically similar images to a pattern or user-defined specification. The

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Saravanan, S., and S. Govindarajan. "Mental health analysis on digital world with meditation using EEG." International Journal of Engineering & Technology 7, no. 4.36 (2018): 817. http://dx.doi.org/10.14419/ijet.v7i4.36.24539.

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Internet, e-mail and other social networks like Myspace, Facebook, twitter, LinkedIn are the indispensable components in today's world. These social networking makes the human to addict into the digital world. Digital world has become the integral part of our society. Addiction to the digital world slowly develops the negative symptoms in the area of physical, physiological, emotional and psychological. The most affected of all is the change in Emotional behaviour of the Humans. Emotions plays an important role in our day today life. The existing research work, based on subjective self-reports

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Ibrahim, Khalid Ahmed, and G. K. Viju. "Securing Images Using Watermarking Technique." FES Journal of Engineering Sciences 6, no. 1 (2012): 8. http://dx.doi.org/10.52981/fjes.v6i1.25.

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Factors like Secrecy, Authentication, Non-repudiation and Integrity are considered in dealing with security. Watermarking is one such security measure. Watermarking technology generally permits authors to hide their names in the image behind their original work. In this proposed work, a segment based model is developed wherein the original image is partitioned into various segments and the information is made confidential. At the receiver’s end the segments are combined to obtain the original image and the secret information. The model facilitates both watermark embedding and extraction. Besid

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Möbus, G., R. Schweinfest, S. Bernath, and T. Wagner. "Iterative Structure Retrieval Techniques for Aperiodic Defects (e.g. Dislocations) using QHREM." Microscopy and Microanalysis 3, S2 (1997): 679–80. http://dx.doi.org/10.1017/s143192760001028x.

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The determination of unknown crystal defect structures by iterative digital image matching (“quantitative HREM”) has previously been successfully applied to grain boundaries (e.g. in niobium [1]) or phase boundaries with small misfit (e.g. Nb-sapphire [2]), which offer several advantages: (i) the supercell is small leading to fast cycle times in iterative structure refinement and thus to a secure global optimum, (ii) noise-filtering is possible by translation symmetry, (iii) the interface structure is mostly planar (i.e. perfectly columnar). For dislocations and other aperiodic defects all the

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Kekre, H. B., Tanuja Sarode, Pallavi Halarnkar, and Debkanya Mazumder. "IMAGE SCRAMBLING USING NON SINUSOIDAL TRANSFORM AND KEY BASED SCRAMBLING TECHNIQUE." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 12, no. 8 (2014): 3809–22. http://dx.doi.org/10.24297/ijct.v12i8.2997.

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Nowadays Digital Images find a lot of applications almost in all the fields, for e.g. Information Hiding. Security of these images is very important. Image encryption is one method of providing security to digital images. In this paper we have proposed a method for Image scrambling which is based on a combination of spatial and frequency domain.Â Four different Non sinusoidal transforms, Walsh , Slant ,Kekre and Haar were used. Three different types i.e Row , Column and Full Transforms of these four transforms were applied for Image scrambling , out of these four Kekre Transform gave the best

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Luque, Sergio. "The Stochastic Synthesis of Iannis Xenakis." Leonardo Music Journal 19 (December 2009): 77–84. http://dx.doi.org/10.1162/lmj.2009.19.77.

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In the late 1960s, composer, architect and theoretician Iannis Xenakis (1922–2001) began his research on stochastic synthesis: an approach to microsound synthesis that uses probability distributions to manipulate individual digital samples. He continued with this research for most of the 1970s and from the late 1980s until the end of his career. This article traces the aesthetic origins of this non-standard synthesis technique and gives a historical presentation of its development, including a discussion of the works in which Xenakis used it and a full description of the dynamic stochastic syn

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Boskovic, Aleksandar, Miroslav Despotovic, and Dragana Bajic. "Predictive ECG coding using linear time-invariant models." Archive of Oncology 12, no. 3 (2004): 152–58. http://dx.doi.org/10.2298/aoo0403152b.

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Electrocardiogram (ECG) signal compression suffers of lack of standards for analogue-digital conversion. Results of this study have shown that 8 bits/sample, although frequently in use, does not satisfy quality criteria for medical doctors. This paper also presents predictive technique for lossless ECG compression using linear time-invariant models. Tests on clinically measured ECG signals confirm a very good performance in terms of compression ratio.

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Khan, Sahib, Khalil Khan, Farman Ali, and Kyung-Sup Kwak. "Forgery Detection and Localization of Modifications at the Pixel Level." Symmetry 12, no. 1 (2020): 137. http://dx.doi.org/10.3390/sym12010137.

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In this paper, we present a new technique of image forgery detection. The proposed technique uses digital signatures embedded in the least significant bits of the selected pixels of each row and column. The process maintains a symmetry in the use of pixels for computing and hiding the digital signatures. Each row and column of the image symmetrically contributes to both processes, with the number of pixels per row or column used for computing the signature, and the pixels used for embedding are not equal and are asymmetric. The pixels in each row and column of an image are divided into two gro

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