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Journal articles on the topic 'Average Threshold Crossing'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Preeti*. "NETWORK PERFORMANCE MONITORING USING THRESHOLD CROSSING ALERTS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 5 (2016): 122–25. https://doi.org/10.5281/zenodo.51005.

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Threshold crossing alerts (TCAs) indicate to a management system that a management variable, associated with the state, performance or health of the network, has crossed a certain threshold. The timely detection of TCAs is essential to proactive management. This paper focuses on detecting TCAs for network-level variables, which are computed from device-level variables using aggregation functions, such as SUM, MAX, or AVERAGE. This paper proposes a methodology which could be managing the individual network elements deployed in the telecommunication network environment. This proposed system uses

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Yanyo, L. C., and F. N. Kelley. "Effect of Chain Length Distribution on the Tearing Energy of Silicone Elastomers." Rubber Chemistry and Technology 60, no. 1 (1987): 78–88. http://dx.doi.org/10.5254/1.3536123.

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Abstract The tearing energies of two endlinked PDMS networks, one a monomodal distribution of chain lengths and the other a bimodal mixture of very short and rather long chains, at the same average molecular weight between crosslinks, were compared. The bimodal network exhibited higher tearing strengths than the monomodal network under the same experimental conditions. At threshold conditions, the bimodal network tearing energy was 70% higher than the threshold strength of the monomodal network. A rederivation of the Lake and Thomas theory for the threshold tearing strength which includes a bi

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Xue, Xiao, Maximilian Russ, Nodar Samkharadze, et al. "Quantum logic with spin qubits crossing the surface code threshold." Nature 601, no. 7893 (2022): 343–47. http://dx.doi.org/10.1038/s41586-021-04273-w.

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AbstractHigh-fidelity control of quantum bits is paramount for the reliable execution of quantum algorithms and for achieving fault tolerance—the ability to correct errors faster than they occur1. The central requirement for fault tolerance is expressed in terms of an error threshold. Whereas the actual threshold depends on many details, a common target is the approximately 1% error threshold of the well-known surface code2,3. Reaching two-qubit gate fidelities above 99% has been a long-standing major goal for semiconductor spin qubits. These qubits are promising for scaling, as they can lever

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Yacoub, M. D., C. R. C. M. da Silva, and J. E. Vargas B. "Level crossing rate and average fade duration for pure selection and threshold selection diversity-combining systems." International Journal of Communication Systems 14, no. 10 (2001): 897–907. http://dx.doi.org/10.1002/dac.514.

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Chesher, Andrew, and Adam M. Rosen. "What Do Instrumental Variable Models Deliver with Discrete Dependent Variables?" American Economic Review 103, no. 3 (2013): 557–62. http://dx.doi.org/10.1257/aer.103.3.557.

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We compare nonparametric instrumental variables (IV) models with linear models and 2SLS methods when dependent variables are discrete. A 2SLS method can deliver a consistent estimator of a Local Average Treatment Effect but is not informative about other treatment effect parameters. The IV models set identify a range of interesting structural and treatment effect parameters. We give set identification results for a counterfactual probability and an Average Treatment Effect in a IV binary threshold crossing model. We illustrate using data on female employment and family size (employed by Joshua

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Mascio, Paola Di, and Laura Moretti. "Hourly Capacity of a Two Crossing Runway Airport." Infrastructures 5, no. 12 (2020): 111. http://dx.doi.org/10.3390/infrastructures5120111.

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At the international level, the interest in airport capacity is growing in the last years because its maximization ensures the best performances of the infrastructure. However, infrastructure, procedure, human factor constraints should be considered to ensure a safe and regular flow to the flights. This paper analyzed the airport capacity of an airport with two crossing runways. The fast time simulation allowed modeling the baseline scenario (current traffic volume and composition) and six operative scenarios; for each scenario, the traffic was increased until double the current volume. The ob

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Steffen, Will, Johan Rockström, Katherine Richardson, et al. "Trajectories of the Earth System in the Anthropocene." Proceedings of the National Academy of Sciences 115, no. 33 (2018): 8252–59. http://dx.doi.org/10.1073/pnas.1810141115.

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We explore the risk that self-reinforcing feedbacks could push the Earth System toward a planetary threshold that, if crossed, could prevent stabilization of the climate at intermediate temperature rises and cause continued warming on a “Hothouse Earth” pathway even as human emissions are reduced. Crossing the threshold would lead to a much higher global average temperature than any interglacial in the past 1.2 million years and to sea levels significantly higher than at any time in the Holocene. We examine the evidence that such a threshold might exist and where it might be. If the threshold

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Lawal, Omobolaji, Shaik Althaf V. Shajihan, Kirill Mechitov, and Billie F. Spencer. "An Event-Classification Neural Network Approach for Rapid Railroad Bridge Impact Detection." Sensors 23, no. 6 (2023): 3330. http://dx.doi.org/10.3390/s23063330.

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Railroads are a critical part of the United States’ transportation sector. Over 40 percent (by weight) of the nation’s freight is transported by rail, and according to the Bureau of Transportation statistics, railroads moved $186.5 billion of freight in 2021. A vital part of the freight network is railroad bridges, with a good number being low-clearance bridges that are prone to impacts from over-height vehicles; such impacts can cause damage to the bridge and lead to unwanted interruption in its usage. Therefore, the detection of impacts from over-height vehicles is critical for the safe oper

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Shi, Xue Chao, Zhen Zhong Sun, and Sheng Lin Lu. "A Novel Method of Sub-Pixel Linear Edge Detection Based on First Derivative Approach." Advanced Materials Research 139-141 (October 2010): 2107–11. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.2107.

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In this paper, a novel algorithm is proposed to detect linear edge. Image gradient is acquired by Sobel or Prewitt filters. Logical addition is applied to enhance image contrast. Statistical method is employed to cope with gradient data—gradient projection in the horizontal and vertical direction to compute the average gradient value. Multi-level B-Spline interpolation is employed to smooth gradient data. At last, edge coordinates can be computed precisely by the number and interval of extreme points. The experiment results are presented to show validity of the algorithm, which precision and a

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Jiang, Nan, and Ting Liu. "An Improved Speech Segmentation and Clustering Algorithm Based on SOM and K-Means." Mathematical Problems in Engineering 2020 (September 12, 2020): 1–19. http://dx.doi.org/10.1155/2020/3608286.

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This paper studies the segmentation and clustering of speaker speech. In order to improve the accuracy of speech endpoint detection, the traditional double-threshold short-time average zero-crossing rate is replaced by a better spectrum centroid feature, and the local maxima of the statistical feature sequence histogram are used to select the threshold, and a new speech endpoint detection algorithm is proposed. Compared with the traditional double-threshold algorithm, it effectively improves the detection accuracy and antinoise in low SNR. The k-means algorithm of conventional clustering needs

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Wang, Yunfei, Shuangxi Liu, Zhuo Ren, et al. "Clustering and Segmentation of Adhesive Pests in Apple Orchards Based on GMM-DC." Agronomy 13, no. 11 (2023): 2806. http://dx.doi.org/10.3390/agronomy13112806.

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The segmentation of individual pests is a prerequisite for pest feature extraction and identification. To address the issue of pest adhesion in the apple orchard pest identification process, this research proposed a pest adhesion image segmentation method based on Gaussian Mixture Model with Density and Curvature Weighting (GMM-DC). First, in the HSV color space, an image was desaturated by adjusting the hue and inverting to mitigate threshold crossing points. Subsequently, threshold segmentation and contour selection methods were used to separate the image background. Next, a shape factor was

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Chakravarthy, Murali, Sharmila Sengupta, Sanjeev Singh, Neeta Munshi, Tency Jose, and Vatsal Chhaya. "Incidence Rates of Healthcare-associated Infections in Hospitals: A Multicenter, Pooled Patient Data Analysis in India." International Journal of Research Foundation of Hospital and Healthcare Administration 3, no. 2 (2015): 86–90. http://dx.doi.org/10.5005/jp-journals-10035-1042.

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ABSTRACT Aim The aim of this study was to collect the multicenter data of healthcare-associated infections (HAIs) to assess the infection control scenario in India in context with CDC/NHSN and INICC database. Materials and methods Four National Accreditation Board for Hospitals and Health Care Providers (NABH) accredited hospitals were selected on random basis and raw data on healthcare-associated infections—number of days and number of infections in all intensive care patients was obtained as per the CDC-NHSN definitions and formula. Three major device related infections were considered for a

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Lu, Naiwei, Mohammad Noori, and Yang Liu. "First-passage probability of the deflection of a cable-stayed bridge under long-term site-specific traffic loading." Advances in Mechanical Engineering 9, no. 1 (2017): 168781401668727. http://dx.doi.org/10.1177/1687814016687271.

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Long-span bridges suffer from higher traffic loads and the simultaneous presence of multiple vehicles, which in conjunction with the steady traffic growth may pose a threat to the bridge safety. This study presents a methodology for first-passage probability evaluation of long-span bridges subject to stochastic heavy traffic loading. Initially, the stochastic heavy traffic loading was simulated based on long-term weigh-in-motion measurements of a highway bridge in China. A computational framework was presented integrating Rice’s level-crossing theory and the first-passage criterion. The effect

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Stefanov, Lachezar G., and Svilen E. Neykov. "Determination of Anaerobic Threshold by a new approach through the incremental exercise using proportion in HR and Ve changes in rowers." Pedagogy of Physical Culture and Sports 25, no. 2 (2021): 89–97. http://dx.doi.org/10.15561/26649837.2021.0203.

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Background and Study Aim. The aim of this research is to create a non-invasive and easy to apply in practice approach to determine the anaerobic threshold based only on measurement of the pulmonary ventilation and the hearth rate. It uses proportions, with which these variables were changed during a maximal incremental test. Material and Methods. Twenty athletes from the national rowing team of Bulgaria with average age of 17.5 years were tested. Participants performed a one-time graded incremental exercise test to exhaustion on a rowing ergometer. The proposed new approach for determini

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Kline, Patrick, and Christopher R. Walters. "On Heckits, LATE, and Numerical Equivalence." Econometrica 87, no. 2 (2019): 677–96. http://dx.doi.org/10.3982/ecta15444.

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Structural econometric methods are often criticized for being sensitive to functional form assumptions. We study parametric estimators of the local average treatment effect (LATE) derived from a widely used class of latent threshold crossing models and show they yield LATE estimates algebraically equivalent to the instrumental variables (IV) estimator. Our leading example is Heckman's (1979) two‐step (“Heckit”) control function estimator which, with two‐sided non‐compliance, can be used to compute estimates of a variety of causal parameters. Equivalence with IV is established for a semiparamet

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Yildiz, Neşe. "ESTIMATION OF BINARY CHOICE MODELS WITH LINEAR INDEX AND DUMMY ENDOGENOUS VARIABLES." Econometric Theory 29, no. 2 (2013): 354–92. http://dx.doi.org/10.1017/s0266466612000436.

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This paper presents computationally simple estimators for the index coefficients in a binary choice model with a binary endogenous regressor without relying on distributional assumptions or on large support conditions and yields root-n consistent and asymptotically normal estimators. We develop a multistep method for estimating the parameters in a triangular, linear index, threshold-crossing model with two equations. Such an econometric model might be used in testing for moral hazard while allowing for asymmetric information in insurance markets. In outlining this new estimation method two con

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Wang, Shuchao, Quan Zhou, Ruijin Liao, Lai Xing, Nengcheng Wu, and Qian Jiang. "The Impact of Cross-Linking Effect on the Space Charge Characteristics of Cross-Linked Polyethylene with Different Degrees of Cross-Linking under Strong Direct Current Electric Field." Polymers 11, no. 7 (2019): 1149. http://dx.doi.org/10.3390/polym11071149.

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Cross-linked polyethylene (XLPE) obtained by the crossing-linking reaction of polyethylene (PE) can greatly enhance the mechanical properties and other properties of PE, which makes XLPE widely applied in the field of electric power engineering. However, the space charges can distort the distribution of the electrical field strength in the XLPE applied in the insulation materials, which can shorten the service life of the insulation materials. Therefore, the space charge characteristics of XLPE under the strong direct current (DC) electric field have been the focus of scholars and engineers al

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Sezikli, İsmail, Mehmet Berksun Tutan, Mahmut Arif Yüksek, Murtaza Salih Kepez, Murat Baki Yıldırım, and Ramazan Topçu. "Effect of glucose lymphocyte ratio on prognosis in patients operated with the diagnosis of pancreatic adenocarcinoma." Journal of Comprehensive Surgery 2, no. 2 (2024): 29–34. http://dx.doi.org/10.51271/jocs-0030.

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Aims: Pancreatic adenocarcinoma is one of the most aggressive cancers, and predicting prognosis and survival clinically is challenging. Prognostic markers, easily accessible and routinely evaluated in diagnostic tests, are frequently seen in the literature for survival prediction. So far, the glucose lymphocyte ratio (GLR) has emerged as an indicator that can assess both metabolic dysregulation and immune response. In this study, the aim was to assess the impact of GLR on prognosis and survival by following patients diagnosed with pancreatic adenocarcinoma who underwent surgery. Methods: Betwe

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Sun, Rui, Xiao Ming Yuan, Long Wei Chen, and Zhen Zhong Cao. "Comparative Analysis of Time-Frequency Curves of Seismic Records on Liquefied and Non-Liquefied Sites." Advanced Materials Research 243-249 (May 2011): 824–31. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.824.

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The frequency of ground records on liquefied and non-liquefied sites is different. The calculation method of frequency decreasing rate is given here and the division line between liquefied and non-liquefied sites is proposed. To analyze the time-frequency curves of acceleration, the zero-crossing method is employed. The soft sites and ordinary non-liquefied sites are included in non-liquefied sites. The results show: (1) The concept and calculation method of frequency decreasing ratio, which is proposed in this paper, can describe the characteristics and regulations of time-frequency on liquef

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Du, Yanping, Lizhi Peng, Shuihai Dou, Xianyang Su, and Xiaona Ren. "Research on Personalized Book Recommendation Based on Improved Similarity Calculation and Data Filling Collaborative Filtering Algorithm." Computational Intelligence and Neuroscience 2022 (September 17, 2022): 1–11. http://dx.doi.org/10.1155/2022/1900209.

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(Purpose/Significance). This paper aims at the problems of inaccurate recommendation effect caused by data sparseness and cold start in the traditional collaborative filtering-based book personalized recommendation algorithm. So this paper proposes a collaborative filtering recommendation algorithm which improves the similarity solution method and the filling method of missing data. (Method/Process). By considering the influence of the user’s common rating book collection on the similarity calculation, the average rating value of all books is used as the threshold, and the user’s common rating

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Potapova, N. A., A. S. Zlobin, I. N. Leonova, E. A. Salina, and Y. A. Tsepilov. "The BLUP method in evaluation of breeding values of Russian spring wheat lines using micro- and macroelements in seeds." Vavilov Journal of Genetics and Breeding 28, no. 4 (2024): 456–62. http://dx.doi.org/10.18699/vjgb-24-51.

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Genomic selection is a technology that allows for the determination of the genetic value of varieties of agricultural plants and animal breeds, based on information about genotypes and phenotypes. The measured breeding value (BV) for varieties and breeds in relation to the target trait allows breeding stages to be thoroughly planned and the parent forms suitable for crossing to be chosen. In this work, the BLUP method was used to assess the breeding value of 149 Russian varieties and introgression lines (4 measurements for each variety or line, 596 phenotypic points) of spring wheat according

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Deutloff, Jakob, Hermann Held, and Timothy M. Lenton. "High probability of triggering climate tipping points under current policies modestly amplified by Amazon dieback and permafrost thaw." Earth System Dynamics 16, no. 2 (2025): 565–83. https://doi.org/10.5194/esd-16-565-2025.

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Abstract. We investigate the probabilities of triggering climate tipping points under five Shared Socioeconomic Pathways (SSPs) and how they are altered by including the additional carbon emissions that could arise from tipping points within the Earth's carbon cycle. The crossing of a climate tipping point at a threshold level of global mean surface temperature (threshold temperature) would commit the affected subsystem of the Earth to abrupt and largely irreversible changes with negative impacts on human well-being. However, it remains unclear which tipping points would be triggered under the

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Osborn, H. P., M. Ansdell, Y. Ioannou, et al. "Rapid classification of TESS planet candidates with convolutional neural networks." Astronomy & Astrophysics 633 (January 2020): A53. http://dx.doi.org/10.1051/0004-6361/201935345.

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Aims. Accurately and rapidly classifying exoplanet candidates from transit surveys is a goal of growing importance as the data rates from space-based survey missions increase. This is especially true for the NASA TESS mission which generates thousands of new candidates each month. Here we created the first deep-learning model capable of classifying TESS planet candidates. Methods. We adapted an existing neural network model and then trained and tested this updated model on four sectors of high-fidelity, pixel-level TESS simulations data created using the Lilith simulator and processed using th

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Salcedo-Bosch, Andreu, Francesc Rocadenbosch, Miguel A. Gutiérrez-Antuñano, and Jordi Tiana-Alsina. "Estimation of Wave Period from Pitch and Roll of a Lidar Buoy." Sensors 21, no. 4 (2021): 1310. http://dx.doi.org/10.3390/s21041310.

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This work proposes a new wave-period estimation (L-dB) method based on the power-spectral-density (PSD) estimation of pitch and roll motional time series of a Doppler wind lidar buoy under the assumption of small angles (±22 deg) and slow yaw drifts (1 min), and the neglection of translational motion. We revisit the buoy’s simplified two-degrees-of-freedom (2-DoF) motional model and formulate the PSD associated with the eigenaxis tilt of the lidar buoy, which was modelled as a complex-number random process. From this, we present the L-dB method, which estimates the wave period as the average w

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Khaparde, Arti, Vaidehi Deshmukh, Vidushi Sharma, and Utkarsh Singh. "Li-Ion Battery Temperature Forecasting Method: Case-Study." WSEAS TRANSACTIONS ON ELECTRONICS 14 (December 31, 2023): 112–21. http://dx.doi.org/10.37394/232017.2023.14.13.

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Monitoring and managing battery health is crucial for enhancing performance and lowering running expenses for electronic devices. This paper covers the Deep-learning-enabled temperature forecasting for Li- ion batteries, where they are tested independently. This research presents time series forecasting approaches to predict the temperature of the battery packs. In the proposed model, a Long Short-Term Memory (LSTM) and autoregressive integrated moving average (ARIMA) for predicting the battery temperature and beware of probable future temperatures beforehand to minimize the chances of overcha

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Stauffer, Glenn E., Erik R. Olson, Jerrold L. Belant, et al. "Uncertainty and precaution in hunting wolves twice in a year: Reanalysis of Treves and Louchouarn." PLOS ONE 19, no. 6 (2024): e0301487. http://dx.doi.org/10.1371/journal.pone.0301487.

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Management of wolves is controversial in many jurisdictions where wolves live, which underscores the importance of rigor, transparency, and reproducibility when evaluating outcomes of management actions. Treves and Louchouarn 2022 (hereafter TL) predicted outcomes for various fall 2021 hunting scenarios following Wisconsin’s judicially mandated hunting and trapping season in spring 2021, and concluded that even a zero harvest scenario could result in the wolf population declining below the population goal of 350 wolves specified in the 1999 Wisconsin wolf management plan. TL further concluded

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Rossi, Fabio, Paolo Motto Ros, Ricardo Maximiliano Rosales, and Danilo Demarchi. "Embedded Bio-Mimetic System for Functional Electrical Stimulation Controlled by Event-Driven sEMG." Sensors 20, no. 5 (2020): 1535. http://dx.doi.org/10.3390/s20051535.

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The analysis of the surface ElectroMyoGraphic (sEMG) signal for controlling the Functional Electrical Stimulation (FES) therapy is being widely accepted as an active rehabilitation technique for the restoration of neuro-muscular disorders. Portability and real-time functionalities are major concerns, and, among others, two correlated challenges are the development of an embedded system and the implementation of lightweight signal processing approaches. In this respect, the event-driven nature of the Average Threshold Crossing (ATC) technique, considering its high correlation with the muscle fo

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Bouhram, M., B. Klecker, G. Paschmann, et al. "Survey of energetic O<Sup>+</sup> ions near the dayside mid-latitude magnetopause with Cluster." Annales Geophysicae 23, no. 4 (2005): 1281–94. http://dx.doi.org/10.5194/angeo-23-1281-2005.

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Abstract. Since December 2000, the Cluster satellites have been conducting detailed measurements of the magnetospheric boundaries and have confirmed the unambiguous presence of ions of terrestrial origin (e.g. O+ in regions adjacent to the dayside, mid-latitude magnetopause. In the present paper, we focus on the statistical properties of the O+ ion component at energies ranging from 30eV up to 40keV, using three years of ion data at solar maximum from the Cluster Ion Spectrometry (CIS) experiment aboard two Cluster spacecraft. The O+ density decreases on average by a factor of 6, from 0.041 to

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Volkova, Natalia A., Michael N. Romanov, Anastasia N. Vetokh, et al. "Genome-Wide Association Study Reveals the Genetic Architecture of Growth and Meat Production Traits in a Chicken F2 Resource Population." Genes 15, no. 10 (2024): 1246. http://dx.doi.org/10.3390/genes15101246.

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Background/Objectives: For genomic selection to enhance the efficiency of broiler production, finding SNPs and candidate genes that define the manifestation of main selected traits is essential. We conducted a genome-wide association study (GWAS) for growth and meat productivity traits of roosters from a chicken F2 resource population (n = 152). Methods: The population was obtained by crossing two breeds with contrasting phenotypes for performance indicators, i.e., Russian White (slow-growing) and Cornish White (fast-growing). The birds were genotyped using the Illumina Chicken 60K SNP iSelect

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Lopez, J. R., R. A. Ghanbari, and A. Terzic. "A KATP channel opener protects cardiomyocytes from Ca2+ waves: a laser confocal microscopy study." American Journal of Physiology-Heart and Circulatory Physiology 270, no. 4 (1996): H1384—H1389. http://dx.doi.org/10.1152/ajpheart.1996.270.4.h1384.

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Laser confocal microscopy was used to visualize intracellular spatiotemporal Ca2+ patterns in single guinea pig ventricular myocytes loaded with the Ca2+ indicator, fluo 3-acetoxymethyl ester (fluo 3-AM), and exposed to moderately elevated extracellular K+ to induce partial membrane depolarization. Analysis of K(+)-induced intracellular Ca2+ elevation revealed three distinct paradigms: 1) diffuse, nonoscillatory Ca2+ elevation across the myocyte; 2) localized Ca2+ elevation in anatomically restricted areas (Ca2+ sparks); and 3) regenerative frontal propagations of Ca2+ that traversed the lengt

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Хорошун, Г. М. "МЕТОД СТИСНЕННЯ ДАНИХ ДИФРАКЦІЙНИХ ТА ІНТЕРФЕРЕНЦІЙНИХ ЗОБРАЖЕНЬ". Open Information and Computer Integrated Technologies, № 88 (6 листопада 2020): 134–40. http://dx.doi.org/10.32620/oikit.2020.88.13.

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In the paper the diffraction and interference images received by numerical simulation and experimentally in solving fundamental and applied problems of photonics. Images are structures with a special intensity distribution formed by the initial field and the optical system. To increase the speed of processing of the image data compression method with further implementation in databases is developed. The method of diffraction and interference images compression is based on the intensity quantization. An algorithm for image quantization has been developed: target intensity values have been deter

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Ahearn, Thomas U., Srijon Mukhopadhyay, Jeya Balasubramanian, Nilanjan Chatterjee, Montserrat García-Closas, and Parichoy Pal Choudhury. "Abstract 3464: Development and prospective validation of an estrogen receptor positive breast cancer risk model to identify women who could benefit for risk-reducing therapies." Cancer Research 84, no. 6_Supplement (2024): 3464. http://dx.doi.org/10.1158/1538-7445.am2024-3464.

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Abstract Background: Breast cancer risk-reducing therapies such as tamoxifen and aromatase inhibitors are effective for ER-positive (ER+) but not for ER-negative disease. As these therapies have side effects it is important to identify women at risk of ER+ disease. We developed and validated ER-specific risk prediction models in a prospective cohort and evaluated the expected gains of predicting ER+ vs overall disease. Methods: The iCARE-Lit model integrates established questionnaire-based risk factors and a 313 variant polygenic risk score. We reparametrized the iCARE-Lit model to estimate ri

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Budiarto, Hairil, Vivi Triwidyaningrum, Faikul Umam, and Ach Dafid. "Implementation of Automatic DC Motor Braking PID Control System on (Disc Brakes)." Journal of Robotics and Control (JRC) 4, no. 3 (2023): 371–87. http://dx.doi.org/10.18196/jrc.v4i3.18505.

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The vital role of an automated braking system in ensuring the safety of motorized vehicles and their passengers cannot be overstated. It simplifies the braking process during driving, enhancing control and reducing the chances of accidents. This study is centered on the design of an automatic braking device for DC motors utilizing disc brakes. The instrument employed in this study was designed to accelerate the vehicle in two primary scenarios - before the collision with an obstacle and upon crossing the safety threshold. It achieves this by implementing the Proportional Integral Derivative (P

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Tuzubekova, Madina, Gulnar Kazizova, Inara Sarybaeva, and Gulzhakhan Zhunussova. "Social policy of the state and the role of state programs in solving the problems of social protection of the population." Economic Consultant 37, no. 1 (2022): 61–71. http://dx.doi.org/10.46224/ecoc.2022.1.5.

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Introduction. In a market economy, the process of state development is often accompanied by a drop in the standard of living of the population, a deterioration in the demographic situation in the country, a reduction in the average life expectancy of people, which makes it necessary to improve the effectiveness of the social protection system of citizens. When developing a social policy, the question of social priorities arises as one of the most important, that is, such social tasks that are currently the most urgent and urgent for society, require priority solutions, such as social protectio

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Faradiba, Faradiba. "Tingkat Kebisingan di Sekolah Sekitar Perlintasan Kereta Api." Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2 (November 28, 2017): 62. http://dx.doi.org/10.20961/prosidingsnfa.v2i0.16366.

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<p class="AbstractEnglish"><strong>Abstract:</strong>. Noise is a sound that can cause discomfort. One of them is rail activity. Noise generated enough to bring negative impacts to the surrounding environment, especially in the school environment.. This research uses descriptive analysis method with cross sectional approach. The location of this research is the school that is right next to the railway crossing i.e. SMA Negeri 37 Jakarta. Noise level data retrieval is performed using a sound level meter applications android-based. The data measured by the instantaneous sound p

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Joseph, Sheeba M., Christopher Cheng, Matthew J. Solomito, and J. Lee Pace. "LATERAL TROCHLEAR INCLINATION IN CHILDREN AND ADOLESCENTS: MODIFIED MEASUREMENT TECHNIQUE TO CHARACTERIZE PATELLAR INSTABILITY." Orthopaedic Journal of Sports Medicine 7, no. 3_suppl (2019): 2325967119S0014. http://dx.doi.org/10.1177/2325967119s00146.

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Background: Patellar instability (PI) is relatively rare but occurs most often in younger patients with underlying pathoanatomy. Trochlear dysplasia (TD) is one of many identified PI risk factors, but consensus is lacking on ideal radiographic measurements. The Dejour classification of TD on lateral radiographs is widely accepted but has suboptimal intra and interrater reliability and does not allow quantification of TD. Lateral trochlear inclination (LTI) measured on the most proximal axial magnetic resonance image (MRI) of the trochlear chondral surface is another described measurement of TD

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Евтехова, Д. С., А. В. Павлович, А. С. Орлов та А. Н. Серов. "Способы снижения погрешности для быстродействующих методов измерения частоты электрических сетей". Южно-Сибирский научный вестник, № 6(58) (31 грудня 2024): 132–40. https://doi.org/10.25699/sssb.2024.58.6.035.

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Скорость выполнения измерения является одним из ключевых характеризующих его параметров. Большинство существующих и популярных цифровых методов измерения частоты, таких как метод по переходам сигнала через нуль, метод анализа амплитудного спектра, метод по приращению фазы и метод квадратурной демодуляции обладают значительным временем выполнения измерения и существенной сложностью реализации. Это является существенным недостатком перечисленных методов измерения, что ограничивает их использование в ряде задач электроэнергетики. Данная статья посвящена быстродействующим методам измерения частоты

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Ziyad, Jawad, Kalifa Goïta, Ramata Magagi, Fabien Blarel, and Frédéric Frappart. "Improving the Estimation of Water Level over Freshwater Ice Cover using Altimetry Satellite Active and Passive Observations." Remote Sensing 12, no. 6 (2020): 967. http://dx.doi.org/10.3390/rs12060967.

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Owing to its temporal resolution of 10-day and its polar orbit allowing several crossings over large lakes, the US National Aeronautics and Space Administration (NASA) and the French Centre National d’Etudes Spatiales (CNES) missions including Topex/Poseidon, Jason-1/2/3 demonstrated strong capabilities for the continuous and long-term monitoring (starting in 1992) of large and medium-sized water bodies. However, the presence of heterogeneous targets in the altimeter footprint, such as ice cover in boreal areas, remains a major issue to obtain estimates of water level over subarctic lakes of s

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Salohub, А. M. "INFLUENCE OF GENOTYPIC AND PARATHIPIC FACTORS ON THE TRAITS OF MILK PRODUCTION OF COWS UKRAINIAN RED-AND-WHITE DAIRY BREED." Animal Breeding and Genetics 57 (April 24, 2019): 126–35. http://dx.doi.org/10.31073/abg.57.15.

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The research was carried out to study the influence of genotypic and paratypical factors on the traits of milk production of cows Ukrainian Red-and-White dairy breed LLC "Mena-Avangard" Chernihiv region. In the conditions of pedigree herd, studied four groups of crossbred animals with conditional share heredity of Holstein breed: I – < 62.5%; ІІ – 62.6–75.0; III – 75.0–87.5 and IV – 87.6 and > . According to results of researches cow’s crossbred groups of breeding herd Ukrainian Red-and-White breed with a different conditional blood by Holstein breed, was found reliable influence o

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Han, Yan, Ye Liu, Peng Hu, CS Cai, Guoji Xu, and Jiaying Huang. "Effect of unsteady aerodynamic loads on driving safety and comfort of trains running on bridges." Advances in Structural Engineering 23, no. 13 (2020): 2898–910. http://dx.doi.org/10.1177/1369433220924794.

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In order to investigate the effects of unsteady aerodynamic loads on the driving safety and comfort of trains running on bridges, a three-dimensional and multi-body system model of train–track–bridge was established and the dynamic responses of the coupling system were calculated by combining the finite element software ANSYS with the multi-body dynamics software SIMPACK. The driving safety and comfort of a train running on a bridge under steady and unsteady aerodynamic loads were compared and analyzed. The effects of different crosswind speeds on the driving safety of the train running on the

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Salim, Minu, and Suriya Saravanan. "Evaluation of noise exposure levels of pedestrians in suburban Chennai, India." Journal of Environmental Engineering and Landscape Management 32, no. 3 (2024): 211–21. http://dx.doi.org/10.3846/jeelm.2024.21834.

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The study assessed traffic noise exposure levels of citizens walking on the sidewalks at important road crossings in commercial land zone regions of Chennai’s suburbs. The noise data from signalized and unsignalized intersections are collected with a class I sound level meter for peak and non-peak hours from 6 AM to 10 PM. Different noise indices like A-weighted equivalent continuous noise level (Leq), Traffic Noise Index (TNI), Noise Pollution Level (Lnp) and Noise Climate (NC) are calculated and compared with Central Pollution Control Board (CPCB, 2017) and WHO standards. The inhabitants’ no

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Frech, Michael, Frank Holzäpfel, Arnold Tafferner, and Thomas Gerz. "High-Resolution Weather Database for the Terminal Area of Frankfurt Airport." Journal of Applied Meteorology and Climatology 46, no. 11 (2007): 1913–32. http://dx.doi.org/10.1175/2007jamc1513.1.

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Abstract A 1-yr meteorological dataset for the terminal area of Frankfurt Airport in Germany has been generated with a numerical weather prediction system to provide a synthetic though realistic database for the evaluation of new operational aircraft arrival procedures and their associated risks. The comparison of the 1-yr dataset with a local surface wind climatology indicates that the main climatological features are recovered. A subset of 40 days is validated against measurements from a sound detection and range/radio acoustic sounding system (SODAR/RASS) taken at Frankfurt Airport. The RMS

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Regaudie-de-Gioux, A., R. Vaquer-Sunyer, and C. M. Duarte. "Patterns in planktonic metabolism in the Mediterranean Sea." Biogeosciences Discussions 6, no. 4 (2009): 8569–88. http://dx.doi.org/10.5194/bgd-6-8569-2009.

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Abstract. Planktonic gross community production (GPP), net community production (NCP) and community respiration (CR) across the Mediterranean Sea was examined in two cruises, THRESHOLDS 2006 and 2007, each crossing the Mediterranean from West to East to test for consistent variation along this longitudinal gradient. GPP averaged 2.4±0.4 mmol O2m−3 d−1, CR averaged 3.8±0.5 mmol O2m−3 d−1, and NCP averaged -0.8&amp;plusmn0.6 mmol O2m−3 d−1across the studied sections, indicative of a tendency for a net heterotrophic metabolism, prevalent across studied sections of the Mediterranean Sea as ref

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Regaudie-de-Gioux, A., R. Vaquer-Sunyer, and C. M. Duarte. "Patterns in planktonic metabolism in the Mediterranean Sea." Biogeosciences 6, no. 12 (2009): 3081–89. http://dx.doi.org/10.5194/bg-6-3081-2009.

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Abstract. Planktonic gross community production (GPP), net community production (NCP) and community respiration (CR) across the Mediterranean Sea was examined in two cruises, Thresholds 2006 and 2007, each crossing the Mediterranean from West to East to test for consistent variation along this longitudinal gradient in late spring to early summer. GPP averaged 2.4±0.4 mmol O2 m−3 d−1, CR averaged 3.8±0.5 mmol O2 m−3 d−1, and NCP averaged – 0.8±0.6 mmol O2 m−3 d−1 across the studied sections, indicative of a tendency for a net heterotrophic metabolism in late spring to early summer, prevalent ac

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Li, Guanghui, Yongzhi Gou, Binqian Guo, Hongmei Li, Enfan Cao, and Junjie Ma. "Research on the Dynamic Response of the Catenary of the Co-Located Railway for Conventional/High Speed Trains in High-Wind Area." Infrastructures 10, no. 7 (2025): 182. https://doi.org/10.3390/infrastructures10070182.

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To establish a theoretical foundation for assessing the dynamic performance of high-speed train catenary systems in wind-prone regions, this study develops a coupled pantograph–catenary model using ANSYS(2022R1) APDL. The dynamic responses of conventional high-speed pantographs traversing both mainline and transition sections are analyzed under varying operational conditions. The key findings reveal that an elevated rated tension in the contact wire and messenger wire reduces the pantograph lift in wind areas with no crosswind compared to non-wind areas, with an average lift reduction of 8.52%

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Galiatsatou, Panagiota, and Panayotis Prinos. "REDUCING UNCERTAINTY IN EXTREME WAVES AND STORM SURGES USING A COMBINED EXTREME VALUE MODEL AND WAVELETS." Coastal Engineering Proceedings 1, no. 33 (2012): 6. http://dx.doi.org/10.9753/icce.v33.management.6.

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In the present study the wavelet transform is combined with non-stationary statistical models for extreme value analysis, to provide more reliable and more accurate return level estimates. The continuous wavelet transform is first used to detect the significant “periodicities” of the wave height and storm surge signals under study by means of the wavelet global and scale-averaged power spectra and then it is used to reconstruct the part of the time series, represented by these significant and prominent features. A non-stationary point process is utilized to model the extremes. A time varying t

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Yanyo, L. C., and F. N. Kelley. "Effect of Network Chain Length on the Tearing Energy Master Curves of Poly(Dimethyldiphenyl Siloxane)." Rubber Chemistry and Technology 61, no. 1 (1988): 100–118. http://dx.doi.org/10.5254/1.3536169.

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Abstract Five different molecular weights of vinyl-terminated poly(dimethyldiphenyl siloxane) were endlinked with tetrakis(dimethylsiloxy)silane to produce networks of various crosslink densities. A hydrosilation endlinking reaction was chosen, since this method provides the advantage of easily controlling the network chain length and network morphology. Tear energies were determined using a modified trouser-tear test piece at several rates and temperatures. All of the tear energy data for each crosslink density could be shifted to a single master curve with the same WLF coefficients, C1=6 and

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Yan, C., A. T. T. Kan, W. Wang, F. Yan, L. Wang, and M. B. B. Tomson. "Sorption Study of ?-ALO(OH) Nanoparticle-Crosslinked Polymeric Scale Inhibitors and Their Improved Squeeze Performance in Porous Media." SPE Journal 19, no. 04 (2014): 687–94. http://dx.doi.org/10.2118/164086-pa.

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Summary Polymeric scale inhibitors are widely used in the oil and gas field because of their enhanced thermal stability and better environmental compatibility. However, the squeeze efficiency of such threshold inhibitors, not only polymeric scale inhibitors but also phosphonates, is typically poor in conventional squeeze treatment. In this research, nanoparticle (NP)-crosslinked polymeric scale inhibitors were developed for scale control. Nearly monodispersed boehmite [γ-AlO(OH)] NPs with average size of 2.8 nm were synthesized and used to crosslink sulfonated polycarboxylic acid (SPCA). Cross

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Matrosov, Sergey Y. "Characteristics of Landfalling Atmospheric Rivers Inferred from Satellite Observations over the Eastern North Pacific Ocean." Monthly Weather Review 141, no. 11 (2013): 3757–68. http://dx.doi.org/10.1175/mwr-d-12-00324.1.

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Abstract Narrow elongated regions of moisture transport known as atmospheric rivers (ARs), which affect the West Coast of North America, were simultaneously observed over the eastern North Pacific Ocean by the polar-orbiting CloudSat and Aqua satellites. The presence, location, and extent of precipitation regions associated with ARs and their properties were retrieved from measurements taken at 265 satellite crossings of AR formations during the three consecutive cool seasons of the 2006–09 period. Novel independent retrievals of AR mean rain rate, precipitation regime types, and precipitation

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Schwenk, Michael, Linda L. Garland, Gurtej Singh Grewal, et al. "Wearable sensor-based balance training in older adult cancer patients with chemotherapy-induced neuropathy: A randomized controlled trial." Journal of Clinical Oncology 33, no. 29_suppl (2015): 195. http://dx.doi.org/10.1200/jco.2015.33.29_suppl.195.

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195 Background: Chemotherapy-induced peripheral neuropathy (CIPN) can affect lower extremity joint proprioception leading to balance deficits and increased fall risk. This study evaluated the effect of a sensor-based exercise program on improving postural control in cancer patients with CIPN. Methods: Twenty two cancer patients (Age 70.3±8.7 years) with objectively confirmed CIPN (vibration perception threshold test, VPT > 25 Volt) were randomized to twice weekly x 4 weeks sensor-based training including weight shifting and virtual obstacle crossing with real-time visual feedback of lower-e

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