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Journal articles on the topic 'Propagace a distribuce'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Zhang, Bo, Lian Jin Tao, Wen Pei Wang, and Ji Dong Li. "Research on the Vibration Attenuation Rules and Wave Propagation Law under Impacting Drill on the Deep Soil Layer." Advanced Materials Research 250-253 (May 2011): 1971–77. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.1971.

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A field test is carried out to study the effect of vibration while treating foundation using vibroflotation method in the deep soil layer in Zhengzhou, China. The vibration attenuation rules and wave propagation rules in different formations caused by different numbers of drills are analyzed. Evaluate the influence on the adjacent buildings. The result shows that the vibration will be generated in foundation obviously in the process of construction using the method. Vibration force, impact frequency and site soil are important influence factors on ground vibration attenuation. The analysis rev

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Das, Nirmali Prabha, Dorina G. Dobó, Dániel Berkesi, Ákos Kukovecz, Dezső Horváth, and Ágota Tóth. "Directional coupling in spatially distributed nanoreactors." RSC Advances 9, no. 69 (2019): 40745–49. http://dx.doi.org/10.1039/c9ra09758a.

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Zen Munawar, Novianti Indah Putri, Iswanto, and Dandun Widhiantoro. "Aplikasi Pendeteksi Dan Pelacakan Kendaraan Menggunakan Jaringan Neural Propagasi Balik." INFOTECH journal 8, no. 2 (2022): 135–40. http://dx.doi.org/10.31949/infotech.v8i2.3766.

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Penelitian ini ini bertujuan membangun sistem deteksi dan pelacakan otomatis kendaraan yang dapat diterapkan di lingkungan yang berbeda. Untuk mendeteksi kendaraan, posisi lampu belakang digunakan untuk lokalisasi kendaraan. Jaringan neural propagasi balik (back propagation neural network) yang dilatih oleh kumpulan fitur Gabor. Jaringan neural propagasi balik digunakan untuk memverifikasi kendaraan dan memastikan ketahanan sistem deteksi. Pada tahap pelacakan kendaraan, untuk mengatasi berbagai tantangan pelacakan kendaraan, adanya sebagian kendaraan dan masalah kendaraan yang hilang, penelit

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Perez-Mongiovi, D., P. Chang, and E. Houliston. "A propagated wave of MPF activation accompanies surface contraction waves at first mitosis in Xenopus." Journal of Cell Science 111, no. 3 (1998): 385–93. http://dx.doi.org/10.1242/jcs.111.3.385.

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During the period of mitosis, two surface contraction waves (SCWs) progress from the animal to vegetal poles of the Xenopus egg. It has been shown that these SCWs occur in parallel with the activation of MPF and with its subsequent inactivation in the animal and vegetal hemispheres, suggesting that they are responses to propagated waves of MPF activity across the egg. We have analysed the mechanism of MPF regulation in different regions of the egg in detail in relation to SCW progression. The distributions of histone HI kinase activity and of Cdc2 and cyclin B (the catalytic and regulatory sub

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Rodríguez-Ocampo, Paola E., Jassiel V. H. Fontes, Michael Ring, Edgar Mendoza, and Rodolfo Silva. "A CFD Numerical Study to Evaluate the Effect of Deck Roughness and Length on Shipping Water Loading." Water 13, no. 15 (2021): 2063. http://dx.doi.org/10.3390/w13152063.

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Shipping water events that propagate over the decks of marine structures can generate significant loads on them. As the configuration of the structure may affect the loading behaviour, investigation of shipping water loads in different structural conditions is required. This paper presents a numerical investigation of the effect of deck roughness and deck length on vertical and horizontal loads caused by shipping water on a fixed structure. Systematic analyses were carried out of isolated shipping water events generated with the wet dam-break method and simulated with OpenFoam Computational Fl

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Acosta, Iglesias Dagoberto, Martínez Miguel Enrique Iglesias, and Perea Milton Henry. "Modelación de la propagación de procesos de contagios influidos por la distancia de contacto." Ciencias Matemáticas 37, no. 1 (2025): 77–84. https://doi.org/10.5281/zenodo.15292953.

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La propagación de disímiles enfermedades en agrupaciones de personas, animales o plantas puede ocurrir de diversas formas como el aire, el agua, contacto físico, vectores, fluidos de los individuos, entre otros. Algunas de estas vías pueden estar vinculadas a la distancia en la que se relacionan los objetos de contagio. En esos casos, es posible elaborar un modelo de propagación basado en el modelo logístico, donde se incluye un factor de distancia entre individuos. En este artículo se realiza una propuesta de modelo para la propagación y

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LECOULANT, Jean, Samuel PINSON, and Jean-Michel PERRON. "Observation of the modal propagation of T waves using distributed acoustic sensing." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 4 (2024): 7382–91. http://dx.doi.org/10.3397/in_2024_3954.

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T waves are low-frequency acoustic-waves (< 100 Hz) generated by earthquakes and propagating in the watercolumn. It is largely accepted that T waves propagate as modes. However, the direct observations of this modal propagation in experimental data remain surprisingly rare. Observation of T waves using distributed acoustic sensing (DAS) makes possible space-sampling with one sensor every few meters over tens of kilometers. Using a simple 2D Fourier transform, the time-space pressure-field can be turned into a frequency-wavenumber field where the propagating wave dispersion curves are reveal

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Sapaty, P. S. "Spatial grasp model for dynamic distributed systems." Mathematical machines and systems 3 (2021): 3–21. http://dx.doi.org/10.34121/1028-9763-2021-3-21.

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More complex distributed and intelligent systems which relate to economy, ecology, communi-cations, security and defense, and cover both terrestrial and celestial environments are being developed. Their efficient management, especially in dynamic and unpredictable situations, needs serious investigations and development in scientific and technological areas. Their tradi-tional representations as parts operating by certain algorithms and exchanging messages are be-coming inadequate as such systems need much stronger integration to operate as holistic organ-isms pursuing global and often varying

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Jetti, Harsha Vardhana, and Simona Salicone. "A Possibilistic Kalman Filter for the Reduction of the Final Measurement Uncertainty, in Presence of Unknown Systematic Errors." Metrology 1, no. 1 (2021): 39–51. http://dx.doi.org/10.3390/metrology1010003.

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A Kalman filter is a concept that has been in existence for decades now and it is widely used in numerous areas. It provides a prediction of the system states as well as the uncertainty associated to it. The original Kalman filter can not propagate uncertainty in a correct way when the variables are not distributed normally or when there is a correlation in the measurements or when there is a systematic error in the measurements. For these reasons, there have been numerous variations of the original Kalman filter, most of them mathematically based (like the original one) on the theory of proba

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Kimura, K., K. I. Inoue, Y. Kuroiwa, F. Tanaka, and M. Takada. "Propagated but topologically distributed forebrain neurons expressing alpha-synuclein in aged macaques." Journal of the Neurological Sciences 381 (October 2017): 179. http://dx.doi.org/10.1016/j.jns.2017.08.518.

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Kimura, Katsuo, Ken-ichi Inoue, Yoshiyuki Kuroiwa, Fumiaki Tanaka, and Masahiko Takada. "Propagated but Topologically Distributed Forebrain Neurons Expressing Alpha-Synuclein in Aged Macaques." PLOS ONE 11, no. 11 (2016): e0166861. http://dx.doi.org/10.1371/journal.pone.0166861.

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Wu, Si, Danmei Chen, Mahesan Niranjan, and Shun-ichi Amari. "Sequential Bayesian Decoding with a Population of Neurons." Neural Computation 15, no. 5 (2003): 993–1012. http://dx.doi.org/10.1162/089976603765202631.

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Population coding is a simplified model of distributed information processing in the brain. This study investigates the performance and implementation of a sequential Bayesian decoding (SBD) paradigm in the framework of population coding. In the first step of decoding, when no prior knowledge is available, maximum likelihood inference is used; the result forms the prior knowledge of stimulus for the second step of decoding. Estimates are propagated sequentially to apply maximum a posteriori (MAP) decoding in which prior knowledge for any step is taken from estimates from the previous step. Not

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Butz, Martin V., Martin Pelikan, Xavier Llorà, and David E. Goldberg. "Automated Global Structure Extraction for Effective Local Building Block Processing in XCS." Evolutionary Computation 14, no. 3 (2006): 345–80. http://dx.doi.org/10.1162/evco.2006.14.3.345.

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Learning Classifier Systems (LCSs), such as the accuracy-based XCS, evolve distributed problem solutions represented by a population of rules. During evolution, features are specialized, propagated, and recombined to provide increasingly accurate subsolutions. Recently, it was shown that, as in conventional genetic algorithms (GAs), some problems require efficient processing of subsets of features to find problem solutions efficiently. In such problems, standard variation operators of genetic and evolutionary algorithms used in LCSs suffer from potential disruption of groups of interacting fea

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Lellouch, Ariel, Mark A. Meadows, Tamas Nemeth, and Biondo Biondi. "Fracture properties estimation using distributed acoustic sensing recording of guided waves in unconventional reservoirs." GEOPHYSICS 85, no. 5 (2020): M85—M95. http://dx.doi.org/10.1190/geo2019-0793.1.

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Perforation shots excite guided waves that propagate in a low-velocity unconventional shale reservoir. They have a frequency content of up to 700 Hz and are dispersive. We have analyzed horizontal crosswell perforation shots recorded by a distributed acoustic sensing (DAS) array. As guided waves propagate through a previously stimulated area, we observe a dramatic influence on the guided SH waves in the form of delayed arrival times, scattering, phase incoherency, and loss of amplitude and frequency. The leaky compressional waves undergo a gradual slowdown. Using a simple geometric analysis of

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Mazarei, Fatemeh, Gholamreza Honarasa, Hassan Pakarzadeh, and Iraj Sadegh Amiri. "Random distributed feedback fiber lasers: Impact of third-order dispersion." Journal of Nonlinear Optical Physics & Materials 28, no. 04 (2019): 1950035. http://dx.doi.org/10.1142/s0218863519500358.

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In this paper, one of the most modern random lasers known as random distributed feedback fiber laser is investigated when the third-order dispersion (TOD) is taken into account. The laser characteristics are simulated based on the nonlinear Schrödinger equations (NLSEs) where the power evolution of three interacting waves: the pump, the forward and the backward Stokes waves, are investigated as they propagate down the fiber. The results show that due to TOD, the output characteristics of the laser are changed and particularly, the output power becomes asymmetrical. Moreover, the impacts of fib

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Wang, Hongwei, Fuxiang Xie, Xi Fu, Yongyan Wang, and Zhaoming Yin. "An Investigation of the Effect of Fissure Inclination on Specimen Deformation and the Damage Mechanism Based on the DIC Method." Buildings 15, no. 5 (2025): 713. https://doi.org/10.3390/buildings15050713.

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In order to investigate the effect of fissure inclination on the mechanical properties, deformation, and crack evolution of the surrounding rock in the roadway, uniaxial compression experiments were conducted on sandstone-like materials with prefabricated fissures. The high-speed camera and DIC (digital image correlation) method were employed to analyze the strain distribution and the crack evolution of the specimen. The results demonstrated that the presence of fissures reduces the stress for crack initiation, with intact specimens producing new cracks from about 75% of peak strength and fiss

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Gower, Artur L., I. David Abrahams, and William J. Parnell. "A proof that multiple waves propagate in ensemble-averaged particulate materials." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 475, no. 2229 (2019): 20190344. http://dx.doi.org/10.1098/rspa.2019.0344.

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Effective medium theory aims to describe a complex inhomogeneous material in terms of a few important macroscopic parameters. To characterize wave propagation through an inhomogeneous material, the most crucial parameter is the effective wavenumber . For this reason, there are many published studies on how to calculate a single effective wavenumber. Here, we present a proof that there does not exist a unique effective wavenumber; instead, there are an infinite number of such (complex) wavenumbers. We show that in most parameter regimes only a small number of these effective wavenumbers make a

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Mitra, Anish, Abraham Z. Snyder, Tyler Blazey, and Marcus E. Raichle. "Lag threads organize the brain’s intrinsic activity." Proceedings of the National Academy of Sciences 112, no. 17 (2015): E2235—E2244. http://dx.doi.org/10.1073/pnas.1503960112.

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It has been widely reported that intrinsic brain activity, in a variety of animals including humans, is spatiotemporally structured. Specifically, propagated slow activity has been repeatedly demonstrated in animals. In human resting-state fMRI, spontaneous activity has been understood predominantly in terms of zero-lag temporal synchrony within widely distributed functional systems (resting-state networks). Here, we use resting-state fMRI from 1,376 normal, young adults to demonstrate that multiple, highly reproducible, temporal sequences of propagated activity, which we term “lag threads,” a

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Du, Tianxiang, David E. Laughlin, James A. Bain, Wenyi Zhang, and Jian-Gang (Jimmy) Zhu. "Plasmonic near field transducer of nanocomposite with distributed feedback." AIP Advances 13, no. 2 (2023): 025004. http://dx.doi.org/10.1063/9.0000570.

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In this paper, we present a novel near field transducer (NFT) design concept for heat assisted recording. In this design, metal bars separated by thin dielectric are used to form a resonance plasmonic grating with distributed feedback (DFB). The motivation for such structure design is the use of dielectric separation for enhancing the material stability at elevated temperature so that best materials can be used without compromising much needed plasmonic properties. COMSOL Multiphysics software is used to simulate the plasmonic excitation and propagate to provide a detailed performance analysis

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20

Levin, Donald A. "Ancient Dispersals, Propagule Pressure, and Species Selection in Flowering Plants." Systematic Botany 31, no. 3 (2006): 443–48. http://dx.doi.org/10.1600/036364406778388692.

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The importance of ancient long-distance migrations in shaping the geographical structure of genera and families is becoming ever more apparent. The long-distance immigrants were not random samples of their floras, but had attributes which made them prime candidates for the intercontinental sweepstakes. High propagule dispersability was one such trait. I propose that these invasive species also must have produced large numbers of propagules across their ranges, by virtue of large population numbers and sizes. They probably were widespread, major elements in their floras. These ideas are support

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Yu, Gui Bo, Feng He Tao, Shu Hai Wang, Li Jun Cao, and Qiao Ma. "Solidification Behavior of Lined Al₂O₃-ZrO₂ Multiphase Ceramics in SHS Composite Pipes." Advanced Materials Research 905 (April 2014): 109–12. http://dx.doi.org/10.4028/www.scientific.net/amr.905.109.

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Hypoeutectic and hypereutectic Al2O3+ZrO2 multiphase ceramic-lined composite pipes were produced by using the gravitational separation self-propagate high-temperature (SHS) process. The microstructure of the ceramics was observed by means of SEM and EPMA. The multi-phase ceramics base consists of lamellar or rod-like eutecticum of ZrO2with Al2O3, and Al2O3dendrite is distributed between (Al2O3+ZrO2) eutecticum and the ZrO2is distributed on boundary area between (Al2O3+ZrO2) eutecticum in appearance of band and particle alone in the hypoeutectic multi-phase ceramics, and ZrO2is distributed betw

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Behbahani-Nejad, M., and N. C. Perkins. "Harmonically Forced Wave Propagation in Elastic Cables With Small Curvature." Journal of Vibration and Acoustics 119, no. 3 (1997): 390–97. http://dx.doi.org/10.1115/1.2889735.

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This study presents an investigation of coupled longitudinal-transverse waves that propagate along an elastic cable. The coupling considered derives from the equilibrium curvature (sag) of the cable. A mathematical model is presented that describes the three-dimensional nonlinear response of an extended elastic cable. An asymptotic form of this model is derived for the linear response of cables having small equilibrium curvature. Linear, in-plane response is described by coupled longitudinal-transverse partial differential equations of motion, which are comprehensively evaluated herein. The sp

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Baccus, Stephen A., Christie L. Sahley, and Kenneth J. Muller. "Multiple Sites of Action Potential Initiation Increase Neuronal Firing Rate." Journal of Neurophysiology 86, no. 3 (2001): 1226–36. http://dx.doi.org/10.1152/jn.2001.86.3.1226.

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Sensory input to an individual interneuron or motoneuron typically evokes activity at a single site, the initial segment, so that firing rate reflects the balance of excitation and inhibition there. In a network of cells that are electrically coupled, a sensory input produced by appropriate, localized stimulation can cause impulses to be initiated in several places. An example in the leech is the chain of S cells, which are critical for sensitization of reflex responses to mechanosensory stimulation. S cells, one per segment, form an electrically coupled chain extending the entire length of th

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Colleran, Brian P., and Katherine E. Goodall. "In Situ Growth and Rapid Response Management of Flood-Dispersed Japanese Knotweed (Fallopia japonica)." Invasive Plant Science and Management 7, no. 1 (2014): 84–92. http://dx.doi.org/10.1614/ipsm-d-13-00027.1.

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AbstractThe objective of this article is to identify growth patterns of Japanese knotweed propagules distributed by high-water events. Along four river systems, we collected and measured Japanese knotweed propagules that had been distributed by flooding approximately 1 yr earlier. Results indicate that the size of the emergent shoot may be determined by the extent of underground growth late in the growing season, although initially it is linked to the size of the propagule. Our results show that 70% of new plants originated from rhizome fragments, and 30% from stems. This proportion is similar

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Xie, Xi Shan, and Yan Ping Zeng. "The Effect of Inclusions on Mechanical Behaviour in Ultra-High Strength Alloy Steels." Materials Science Forum 654-656 (June 2010): 51–56. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.51.

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Inclusions are un-avoidable even in super-clean engineering alloy steels because of the necessary melting process. These inclusions (such as TiN, AlN etc) are considered as harmful phases especially for ultra-high strength alloy steels. The unique experiments (in-situ tension and in-situ fatigue tests) have been conducted in a loading chamber of scanning electron microscope. TiN often characterizes with large blocky cubic morphology. Cracks easily initiate at the sharp corners of TiN cubic particles or sometimes directly initiate in TiN particles because of its brittleness. These cracks propag

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Sun, Qiuli, and Kurt Gramoll. "Internet-based Distributed Collaborative Engineering Analysis." Concurrent Engineering 10, no. 4 (2002): 341–48. http://dx.doi.org/10.1177/a030347.

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This paper proposes an engineering analysis environment that allows remote users to conduct three-dimensional finite element analysis collaboratively through the Internet. Java and Java 3D were chosen to develop the working prototype due to their advantages of platform-independence and network supporting. The environment allows remote users to work collaboratively on the same analysis object simultaneously. It reads the geometric data generated by the collaborative geometric modeling environment. The user can interact directly with the geometric model to perform operations, such as applying, e

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Masaki, Y., N. Hanasaki, K. Takahashi, and Y. Hijioka. "Propagation of biases in humidity in the estimation of global irrigation water." Earth System Dynamics 6, no. 2 (2015): 461–84. http://dx.doi.org/10.5194/esd-6-461-2015.

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Abstract. Future projections on irrigation water under a changing climate are highly dependent on meteorological data derived from general circulation models (GCMs). Since climate projections include biases, bias correction is widely used to adjust meteorological elements, such as the atmospheric temperature and precipitation, but less attention has been paid to biases in humidity. Hence, in many cases, uncorrected humidity data have been directly used to analyze the impact of future climate change. In this study, we examined how the biases remaining in the humidity data of five GCMs propagate

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Mitra, Nilanjan, Alak K. Patra, Satya P. Singh, Shyamal Mondal, Prasanta K. Datta, and Shailendra K. Varshney. "Interfacial delamination in glass-fiber/polymer-foam-core sandwich composites using singlemode–multimode–singlemode optical fiber sensors: Identification based on experimental investigation." Journal of Sandwich Structures & Materials 22, no. 1 (2017): 40–54. http://dx.doi.org/10.1177/1099636217733983.

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Identification of interfacial delamination in the glass fiber/polymer-foam-core sandwich composites is difficult if the delamination does not propagate to the side surface of the specimen. However, these damages may eventually lead to compromising the sandwich composite structural component. A cost-effective novel embedded fiber optic sensor is being proposed in this manuscript, which works on the principle of multimode interference, to perform distributed sensing of interfacial delamination within the sandwich composites while in service. Even though this easy to use methodology has been used

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Denaro, Giovanni, Noura El Moussa, Rahim Heydarov, Francesco Lomio, Mauro Pezzè, and Ketai Qiu. "Predicting Failures of Autoscaling Distributed Applications." Proceedings of the ACM on Software Engineering 1, FSE (2024): 1960–81. http://dx.doi.org/10.1145/3660794.

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Predicting failures in production environments allows service providers to activate countermeasures that prevent harming the users of the applications. The most successful approaches predict failures from error states that the current approaches identify from anomalies in time series of fixed sets of KPI values collected at runtime. They cannot handle time series of KPI sets with size that varies over time. Thus these approaches work with applications that run on statically configured sets of components and computational nodes, and do not scale up to the many popular cloud applications that ex

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Snow, B., and A. Hillier. "Mode conversion of two-fluid shocks in a partially-ionised, isothermal, stratified atmosphere." Astronomy & Astrophysics 637 (May 2020): A97. http://dx.doi.org/10.1051/0004-6361/202037848.

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Context. The plasma of the lower solar atmosphere consists of mostly neutral particles, whereas the upper solar atmosphere is mostly made up of ionised particles and electrons. A shock that propagates upwards in the solar atmosphere therefore undergoes a transition where the dominant fluid is either neutral or ionised. An upwards propagating shock also passes a point where the sound and Alfvén speed are equal. At this point the energy of the acoustic shock can separated into fast and slow components. The way the energy is distributed between the two modes depends on the angle of magnetic field

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Vasso, Reppa, M. Polycarpou Marios, and G. Panayiotou Christos. "Distributed Sensor Fault Diagnosis for a Network of Interconnected Cyber-Physical Systems." IEEE Transactions on Control of Network System 2 (November 5, 2014): 11–23. https://doi.org/10.1109/TCNS.2014.2367362.

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This paper proposes a distributed methodology for detecting and isolating multiple sensor faults in interconnected cyberphysical systems. The distributed sensor fault detection and isolation process is conducted in the cybersuperstratum, in two levels. The first-level diagnosis is based on the design of monitoring agents, where every agent is dedicated to a corresponding interconnected subsystem. The monitoring agent is designed to isolate multiple sensor faults occurring in the sensor set of the physical part, while it is allowed to exchange information with its neighboring monitoring agents.

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Getan, A., S. Molchanov, and B. Vainberg. "Intermittency for branching walks with heavy tails." Stochastics and Dynamics 17, no. 06 (2017): 1750044. http://dx.doi.org/10.1142/s0219493717500447.

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Branching random walks on multidimensional lattice with heavy tails and a constant branching rate are considered. It is shown that under these conditions (heavy tails and constant rate), the front propagates exponentially fast, but the particles inside of the front are distributed very non-uniformly. The particles exhibit intermittent behavior in a large part of the region behind the front (i.e. the particles are concentrated only in very sparse spots there). The zone of non-intermittency (were particles are distributed relatively uniformly) extends with a power rate. This rate is found.

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Gelenbe, Erol, and Stelios Timotheou. "Random Neural Networks with Synchronized Interactions." Neural Computation 20, no. 9 (2008): 2308–24. http://dx.doi.org/10.1162/neco.2008.04-07-509.

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Large-scale distributed systems, such as natural neuronal and artificial systems, have many local interconnections, but they often also have the ability to propagate information very fast over relatively large distances. Mechanisms that enable such behavior include very long physical signaling paths and possibly saccades of synchronous behavior that may propagate across a network. This letter studies the modeling of such behaviors in neuronal networks and develops a related learning algorithm. This is done in the context of the random neural network (RNN), a probabilistic model with a well-dev

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Moldoveanu, Matei, and Abdellatif Zaidi. "In-Network Learning: Distributed Training and Inference in Networks." Entropy 25, no. 6 (2023): 920. http://dx.doi.org/10.3390/e25060920.

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In this paper, we study distributed inference and learning over networks which can be modeled by a directed graph. A subset of the nodes observes different features, which are all relevant/required for the inference task that needs to be performed at some distant end (fusion) node. We develop a learning algorithm and an architecture that can combine the information from the observed distributed features, using the processing units available across the networks. In particular, we employ information-theoretic tools to analyze how inference propagates and fuses across a network. Based on the insi

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Li, Zhenhua, Xinyu Wang, Tao Chen, Fan Feng, Pan Liu, and Yonghao Lu. "Experimental and Numerical Evaluation on Deformation and Fracture Mechanism of Cast Duplex Stainless Steel Tubular Specimen." Materials 13, no. 15 (2020): 3430. http://dx.doi.org/10.3390/ma13153430.

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The deformation behavior and fracture mechanism of cast duplex stainless steel tubular specimens under different tensile stages were investigated through experimental and numerical evaluation. The results showed that the axial stress was redistributed due to the necking of the tubular specimen, the axial stress near the internal wall was larger than those near the external wall, and its maximum axial stress was distributed between the internal wall and the center of the wall thickness. Microcracks and voids were initiated under the maximum shear stress along the δ/γ phase interface and propaga

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Choi, Yongseok, Eunji Lim, Jaekwon Shin, and Cheol-Hoon Lee. "MemBox: Shared Memory Device for Memory-Centric Computing Applicable to Deep Learning Problems." Electronics 10, no. 21 (2021): 2720. http://dx.doi.org/10.3390/electronics10212720.

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Large-scale computational problems that need to be addressed in modern computers, such as deep learning or big data analysis, cannot be solved in a single computer, but can be solved with distributed computer systems. Since most distributed computing systems, consisting of a large number of networked computers, should propagate their computational results to each other, they can suffer the problem of an increasing overhead, resulting in lower computational efficiencies. To solve these problems, we proposed an architecture of a distributed system that used a shared memory that is simultaneously

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Alves, Carolina, Cristina Branco, and Celso Cunha. "Hepatitis Delta Virus: A Peculiar Virus." Advances in Virology 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/560105.

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The hepatitis delta virus (HDV) is distributed worldwide and related to the most severe form of viral hepatitis. HDV is a satellite RNA virus dependent on hepatitis B surface antigens to assemble its envelope and thus form new virions and propagate infection. HDV has a small 1.7 Kb genome making it the smallest known human virus. This deceivingly simple virus has unique biological features and many aspects of its life cycle remain elusive. The present review endeavors to gather the available information on HDV epidemiology and clinical features as well as HDV biology.

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Vining, William F., Fernando Esponda, Melanie E. Moses, and Stephanie Forrest. "How does mobility help distributed systems compute?" Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1774 (2019): 20180375. http://dx.doi.org/10.1098/rstb.2018.0375.

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Brains are composed of connected neurons that compute by transmitting signals. The neurons are generally fixed in space, but the communication patterns that enable information processing change rapidly. By contrast, other biological systems, such as ant colonies, bacterial colonies, slime moulds and immune systems, process information using agents that communicate locally while moving through physical space. We refer to systems in which agents are strongly connected and immobile as solid , and to systems in which agents are not hardwired to each other and can move freely as liquid . We ask how

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Tian, S. G., G. L. Xie, J. Xie, and X. M. Zhou. "Influence of Long-term Aging on Microstructure and Creep Behaviors of FGH95 Nickel-based Superalloy." High Temperature Materials and Processes 31, no. 6 (2012): 755–58. http://dx.doi.org/10.1515/htmp-2012-0012.

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AbstractBy means of long-term aging treatment, creep properties measurement and microstructure observation, the influences of long-term aging on the microstructure and creep behaviors of FGH95 Superalloy are investigated. Results show that the fine γ′ particles dispersedly precipitate in the alloy after fully heat treated, and coarser γ′ phase discontinuously distribute along the grain boundaries. After the alloy is long-term aged at 723 K for 500 h, the fine γ′ phase with better cube degree and carbide particles distribute dispersedly in the alloy to enhance the creep resistance of the alloy

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Herman, David. "Genette meets Vygotsky: narrative embedding and distributed intelligence." Language and Literature: International Journal of Stylistics 15, no. 4 (2006): 357–80. http://dx.doi.org/10.1177/0963947006068654.

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Framed tales, or stories within stories, have garnered considerable attention from theorists of narrative in recent years. By and large, however, story analysts have not sought to account for why the practice of narrative embedding has persisted so long - or why it is so widespread - in the world’s folk traditions and written literatures. Using William Wordsworth’s The Ruined Cottage as its tutor-text, this article advances a broadly cognitive explanation for the pervasiveness and persistence of narrative embedding across so many different storytelling situations. My central claim is that, in

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Oppenheimer, Hank. "A new species of Cyanea Gaud. (Lobelioideae, Campanulaceae) from Maui, Hawai`i." PhytoKeys 167 (November 20, 2020): 1–11. http://dx.doi.org/10.3897/phytokeys.167.55107.

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Cyanea heluensis H. Oppenheimer, sp. nov., a new, narrowly distributed endemic species, is herein described and illustrated with line drawings and digital field photos. It is currently known from a single mature plant and is restricted to the upper Helu planeze on leeward Mauna Kahalawai, West Maui, Hawaiian Islands. It differs from all other species of Cyanea Gaudich. with its narrow, shallowly lobed leaves, gently curved muricate corollas, and undulate sepals caducous in fruit. A key to the new species and its congeners on Mauna Kahalawai is provided. Its conservation status and efforts to p

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Gan, K. K. "Demonstration of the propagation of errors using resistors." American Journal of Physics 92, no. 3 (2024): 183–85. http://dx.doi.org/10.1119/5.0145005.

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We present a simple experiment to demonstrate the concept of propagation of errors by measuring resistors on printed circuit boards (PCBs). We devise a method for connecting the resistors on a PCB that allows a relatively quick measurement of 200 resistor pairs to show that the distributions of the measurement of individual resistances, as well as the total resistance, are Gaussian-distributed, as expected from the central limit theorem. The measurement demonstrates how individual uncertainties propagate to the total uncertainty. The experiment is part of a laboratory course on statistics for

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Oppenheimer, Hank. "A new species of Cyanea Gaud. (Lobelioideae, Campanulaceae) from Maui, Hawai`i." PhytoKeys 167 (November 20, 2020): 1–11. https://doi.org/10.3897/phytokeys.167.55107.

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Cyanea heluensis H. Oppenheimer, sp. nov., a new, narrowly distributed endemic species, is herein described and illustrated with line drawings and digital field photos. It is currently known from a single mature plant and is restricted to the upper Helu planeze on leeward Mauna Kahalawai, West Maui, Hawaiian Islands. It differs from all other species of Cyanea Gaudich. with its narrow, shallowly lobed leaves, gently curved muricate corollas, and undulate sepals caducous in fruit. A key to the new species and its congeners on Mauna Kahalawai is provided. Its conservation status and efforts to p

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Grauke, L. J., T. E. Thompson, Philip Forsline, and Kim Hummer. "Use of Core Subsets in Developing Germplasm Collections of Clonally Propagated Crops." HortScience 30, no. 4 (1995): 907D—907. http://dx.doi.org/10.21273/hortsci.30.4.907d.

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Core subsets have been formed in several clonally propagated crops; for pear (Pyrus), strawberry (Fragaria), mint (Mentha), currant (Ribes), blackberry (Rubus), blueberry (Vaccinium), apple (Malus), and pecan [Carya illinoinensis (Wangenh.) K. Koch]. Criteria for selecting entries into each core varies, as does the use each core receives. Core subsets have been selected for each of the major collections maintained at NCGR-Corvallis (pear, strawberry, mint, currant, blackberry, and blueberry). In general, core subsets include 10% of the full collection. Entries were selected on the basis of hor

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Sun, Linlin, Liu Chu, Jiajia Shi, and Eduardo Souza de Cursi. "The Impacts of Random Distributed Vacancy Defects in Steady-State Thermal Conduction of Graphene." Applied Sciences 9, no. 11 (2019): 2363. http://dx.doi.org/10.3390/app9112363.

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The unavoidable vacancy defects dispersed throughout the entire pristine graphene tailor to the integrity of the lattice structure and thereby have complicated impacts on the mechanical and thermal properties of graphene. In order to analyze the influence of vacancy defects on the extraordinary thermal conductivity of graphene, three typical kinds of vacancy defects—namely center concentrated, periodic, and random distributed vacancy defects—are compared and discussed. In the steady-state thermal conduction, the finite element method (FEM) is performed to calculate the total thermal energy and

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Chen, Guanyu, Congwei Zhao, Huajun Gong, Shuai Zhang, and Xinhua Wang. "Formation Transformation Based on Improved Genetic Algorithm and Distributed Model Predictive Control." Drones 7, no. 8 (2023): 527. http://dx.doi.org/10.3390/drones7080527.

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In order to solve the problem of multiple aircraft formation transformation to a designated formation, a distributed formation transformation algorithm that decomposes the formation transformation problem into target-matching problems and trajectory-planning problems was studied. According to the actual formation transformation requirements, the target allocation index was proposed, and the improved genetic algorithm which is 23% better than other algorithms was used to achieve target matching. The adaptive cross-mutation probability was designed, and the population was propagated without dupl

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Boerkoel Jr., James, Léon Planken, Ronald Wilcox, and Julie Shah. "Distributed Algorithms for Incrementally Maintaining Multiagent Simple Temporal Networks." Proceedings of the International Conference on Automated Planning and Scheduling 23 (June 2, 2013): 11–19. http://dx.doi.org/10.1609/icaps.v23i1.13551.

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When multiple agents want to maintain temporal information, they can employ a Multiagent Simple Temporal Network (MaSTN). Recent work has shown that the constraints in a MaSTN can be efficiently propagated by enforcing partial path consistency (PPC) with a distributed algorithm. However, new temporal constraints may arise continually due to ongoing plan construction or execution, the decisions of other agents, and other exogenous events. For these new constraints, propagation is again required to re-establish PPC. Because the affected part of the network may be small, one typically wants to ex

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Zou, Yujing, and Gil Bub. "Comparison of Complexity and Predictability of a Cellular Automaton Model in Excitable Media Cardiac Wave Propagation Compared with a FitzHugh-Nagumo Model." McGill Science Undergraduate Research Journal 15, no. 1 (2020): 66–71. http://dx.doi.org/10.26443/msurj.v15i1.12.

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Background: Excitable media are spatially distributed systems that propagate signals without damping. Examples include fire propagating through a forest, the Belousov-Zhabotinsky reaction, and cardiac tissue. (1) Excitable media generate waves which synchronize cardiac muscle contraction with each heartbeat. Spatiotemporal patterns formed by excitation waves distinguish healthy heart tissues from diseased ones. (3) Discrete Greenberg-Hastings Cellular- Automaton (CA) (1) and the continuous FitzHugh- Nagumo (FHN) model (7) are two methods used to simulate cardiac wave propagation. However, prev

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Chen, Wei R., Gongyu Y. Shen, Gordon M. Shepherd, Michael L. Hines, and Jens Midtgaard. "Multiple Modes of Action Potential Initiation and Propagation in Mitral Cell Primary Dendrite." Journal of Neurophysiology 88, no. 5 (2002): 2755–64. http://dx.doi.org/10.1152/jn.00057.2002.

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The mitral cell primary dendrite plays an important role in transmitting distal olfactory nerve input from olfactory glomerulus to the soma-axon initial segment. To understand how dendritic active properties are involved in this transmission, we have combined dual soma and dendritic patch recordings with computational modeling to analyze action-potential initiation and propagation in the primary dendrite. In response to depolarizing current injection or distal olfactory nerve input, fast Na+ action potentials were recorded along the entire length of the primary dendritic trunk. With weak-to-mo

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Postman, Joseph, Kim Hummer, Ed Stover, et al. "Fruit and Nut Genebanks in the U.S. National Plant Germplasm System." HortScience 41, no. 5 (2006): 1188–94. http://dx.doi.org/10.21273/hortsci.41.5.1188.

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The year 2005 marked the 25th anniversary of the establishment of the U.S. Department of Agriculture (USDA) National Plant Germplasm System (NPGS), repositories devoted to clonally propagated, horticultural fruit and nut crops. During this quarter century, facilities in Hilo, Hawaii; Mayaguez, PR.; Miami, Fla.; and Riverside, Calif. were developed to preserve collections of tropical and subtropical fruit and nut crops; facilities in Brownwood, Texas; Corvallis, Ore.; Davis, Calif. and Geneva, N.Y. preserve the temperate crops. Each of these facilities now has internationally recognized, global

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