Academic literature on the topic 'Continuous/discontinuous connector'

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Journal articles on the topic "Continuous/discontinuous connector"

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Burlakov, Evgenii O., та Ivan N. Malkov. "On connection between continuous and discontinuous neural field models with microstructure: II. Radially symmetric stationary solutions in 2D (“bumps”)". Russian Universities Reports. Mathematics, № 129 (2020): 6–17. http://dx.doi.org/10.20310/2686-9667-2020-25-129-6-17.

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We suggest a method allowing to investigate existence and the measure of proximity between the stationary solutions to continuous and discontinuous neural fields with microstructure. The present part involves results on proximity of the stationary solutions to specific homogenized neural field equations with continuous and discontinuous activation functions. The results of numerical investigation of radially symmetric stationary solutions (bumps) to the neural field with a discontinuous activation function and a given microstructure are presented.
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Sun, Chao Ming. "Recovery Techniques for Complex Grain Boundaries." Applied Mechanics and Materials 364 (August 2013): 854–58. http://dx.doi.org/10.4028/www.scientific.net/amm.364.854.

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When estimating the grain size, the processing effect for complex grain boundaries is often poor. To solve this problem, the recovery techniques for complex grain boundary are studied. After analysis of steps to estimate the grain size, we know that it is critical to get more accurate boundary before quantitative determination, and the discontinuous points among grain boundaries should be connected. Therefore, two methods to connect the discontinuous points were established, and it showed that watershed method is more efficient; however over-segmentation and under-segmentation exist. Accordingly, recovery techniques of complex grain boundary were put forward, that is to edit the regional minimum manually or to connect the discontinuous points in the gray image before watershed transform. By this technique, the grain boundary can be got more accurately, conveniently and continuously closed, independently of interfere of noise, scratches, illumination etc.
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Gaussier, Hervé, and Xianghong Gong. "Smooth Equivalence of Deformations of Domains in Complex Euclidean Spaces." International Mathematics Research Notices 2020, no. 18 (2018): 5578–610. http://dx.doi.org/10.1093/imrn/rny168.

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Abstract We prove that two smooth families of 2-connected domains in $\mathbf{C}$ are smoothly equivalent if they are equivalent under a possibly discontinuous family of biholomorphisms. We construct, for $\infty > m \geq 3$, two smooth families of smoothly bounded $m$-connected domains in $\mathbf{C}$, and for $n\geq 2$, two families of strictly pseudoconvex domains in $\mathbf{C}^n$, which are equivalent under discontinuous families of biholomorphisms but not under any continuous family of biholomorphisms. Finally, we give sufficient conditions for the smooth equivalence of two smooth families of domains.
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Kumar, Gautam, and Mayuresh V. Kothare. "On the Continuous Differentiability of Inter-Spike Intervals of Synaptically Connected Cortical Spiking Neurons in a Neuronal Network." Neural Computation 25, no. 12 (2013): 3183–206. http://dx.doi.org/10.1162/neco_a_00503.

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We derive conditions for continuous differentiability of inter-spike intervals (ISIs) of spiking neurons with respect to parameters (decision variables) of an external stimulating input current that drives a recurrent network of synaptically connected neurons. The dynamical behavior of individual neurons is represented by a class of discontinuous single-neuron models. We report here that ISIs of neurons in the network are continuously differentiable with respect to decision variables if (1) a continuously differentiable trajectory of the membrane potential exists between consecutive action potentials with respect to time and decision variables and (2) the partial derivative of the membrane potential of spiking neurons with respect to time is not equal to the partial derivative of their firing threshold with respect to time at the time of action potentials. Our theoretical results are supported by showing fulfillment of these conditions for a class of known bidimensional spiking neuron models.
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Liu, Heng, Jie Hong, and Dayi Zhang. "Bending and vibration of a discontinuous beam with a curvic coupling under different axial forces." Frontiers of Mechanical Engineering 15, no. 3 (2020): 417–29. http://dx.doi.org/10.1007/s11465-019-0584-4.

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Abstract The transverse stiffness and vibration characteristics of discontinuous beams can significantly differ from those of continuous beams given that an abrupt change in stiffness may occur at the interface of the former. In this study, the equations for the deflection curve and vibration frequencies of a simply supported discontinuous beam under axial loads are derived analytically on the basis of boundary, continuity, and deformation compatibility conditions by using equivalent spring models. The equation for the deflection curve is solved using undetermined coefficient methods. The normal function of the transverse vibration equation is obtained by separating variables. The differential equations for the beam that consider moments of inertia, shearing effects, and gyroscopic moments are investigated using the transfer matrix method. The deflection and vibration frequencies of the discontinuous beam are studied under different axial loads and connection spring stiffness. Results show that deflection decreases and vibration frequencies increase exponentially with increasing connection spring stiffness. Moreover, both variables remain steady when connection spring stiffness reaches a considerable value. Lastly, an experimental study is conducted to investigate the vibration characteristics of a discontinuous beam with a curvic coupling, and the results exhibit a good match with the proposed model.
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Ferreira, Carina Fonseca, Dina D’Ayala, Jose L. Fernandez Cabo, and Rafael Díez. "Numerical Modelling of Historic Vaulted Timber Structures." Advanced Materials Research 778 (September 2013): 517–25. http://dx.doi.org/10.4028/www.scientific.net/amr.778.517.

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Historic timber structures forming vaulted roofs of public and ecclesiastical buildings are present worldwide. The structural response of these constructions is usually governed by the structural performance of the joints, the interaction between the timber structure and the masonry parts, and the current condition of both joints and timber members. At present, numerical approaches, such as finite element method-based approaches are well-established tools for investigating the global response of complex historic structures. Using a FE-based software package, the authors developed a numerical model of a portion of an existing historic vaulted timber structure, which is part of the roof of the Cathedral of Ica in Peru, considering the in-plane semi-rigid response of the planked arches in the elastic range. For this purpose, the rotational and shear stiffness of the joints and the properties of the materials, which are assumed in good conditions, are calibrated by comparing the numerical outputs with experimental results available in literature. The aim of the work presented here is to compare the response of the same vault assuming either continuous (planks continuously connected) or discontinuous arches (modelling of the semi-rigid response of the joints which connect the planks together).
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Sakai, Taku, and Hiromi Miura. "Annealing of Deformed Materials Developed by Continuous/Discontinuous Dynamic Recrystallization." Materials Science Forum 550 (July 2007): 327–32. http://dx.doi.org/10.4028/www.scientific.net/msf.550.327.

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Annealing behaviour was studied in deformed copper developed by continuous or discontinuous dynamic recrystallization (cDRX or dDRX). Pure copper was deformed to large strains by multi-directional forging at room temperature, resulting in an ultra-fine grained structure due to operation of cDRX. Subsequent annealing of such a fine-grained copper can be controlled mainly by grain growth accompanied with recovery and no texture change, that is continuous static recrystallization (cSRX). On the other hand, 4 kinds of static restoration processes operate during annealing of dDRXed copper, i.e. metadaynamic recovery and recystallization (mDRV and mDRX), and classical static recovery and recrystallization. The stable existence of mDRVed grains containing moderate dislocations leads to incomplete recrystallization even after a long period of annealing time. It is discussed how such various types of annealing processes, occurring in cDRXed or dDRXed matrices, can be connected with the characteristic nature of the deformed microstructures.
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Burlakov, E. O., and M. A. Nasonkina. "On connection between continuous and discontinuous neural field models with microstructure I. General theory." Tambov University Reports. Series: Natural and Technical Sciences 23, no. 121 (2018): 17–30. http://dx.doi.org/10.20310/1810-0198-2018-23-121-17-30.

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CHEN, B., Q. YUAN, J. H. FAN, J. G. WANG, and J. LUO. "FIBER-CONTINUOUS PILLAR-BOARD BIOCOMPOSITE STRUCTURE IN TUMBLEBUG ELYTRA." International Journal of Modern Physics B 24, no. 01n02 (2010): 191–200. http://dx.doi.org/10.1142/s0217979210064125.

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The observation of scanning electron microscope (SEM) showed that Tumblebug elytra consist of almost parallel upper and lower cuticles. Both of which are a kind of chitin-fiber-reinforced composite. There is a kind of chitin-fiber-reinforced composite pillars between the upper and lower cuticles, which support and connect the upper and lower cuticles uprightly. More careful observation showed that the chitin fibers in the pillars smoothly extend to the upper and lower composite cuticles forming a kind of fiber-continuous pillar-board composite (FCPBC) structure. Based on the observation, two kinds of pillar-board composite structure specimens, respective with continuous and discontinuous glass fibers, were fabricated with molding and felting processes. The rupture strengths of the two kinds of the specimens were tested and compared. It showed that the rupture strength of the specimens of the FCPBC structure is markedly larger than that of the specimens of the fiber-discontinuous pillar-board composite (FDPBC) structure. At last, the experimental result was analyzed for illumining the mechanism of the FCPBC structure in the enhancement of the strength.
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Arancio, M., C. Marchetti, G. Landi, et al. "A Rare Case of Female Splenogonadal Fusion." Urologia Journal 76, no. 2 (2009): 137–39. http://dx.doi.org/10.1177/039156030907600221.

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Splenogonadal fusion (SGF) is a rare congenital abnormality in which there is a fusion between spleen and gonad. Approximately 150 cases have been described in world literature. SGF can be continuous, where there is a connection between ectopic and orthotopic spleen, and discontinuous, with no connection. In our paper we report a case of SGF in a 36-year-old female with ultrasound and MR findings of space-occupying lesion in lower abdomen, and a review of the literature.
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Dissertations / Theses on the topic "Continuous/discontinuous connector"

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Hyllman, Therese, and Josefine Eriksson. "Litteraturstudie om faktorer som påverkar familjehemsplacerade barns psykiska mående." Thesis, Ersta Sköndal högskola, Institutionen för socialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:esh:diva-5669.

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Background: Placed children have a higher risk of mental illness and negative development but it does not mean one can predict that it will go in a certain way for a certain child. Children belonging to a risk group can do well and vice versa, but it is the community and family care to balance the risk of a negative development Purpose: In this paper, the authors want to draw attention to the problems of children placed children's mental-being. The focus is on three different factors to get a broader picture of what may affect the mental health of foster children. Method: Descriptive literature review of scientific articles and literature. Results: The factors that form the basis of our study is continuous / discontinuous contact with the biological parents, interrupted foster placement and school outcomes for foster children. Theories selected to connect the various factors related theory and risk and protective factors. The results that have emerged show that foster children and young people feel worse than other children and young people who have not been children placed. School results are adversely affected by foster placement which has emerged in our study, and it is of great importance to the social, school, and family home cooperating to act against this. Conclusion: Reports and literature has been quite agree that foster children feel worse than other children in the community. The various factors that the study has highlighted, there was very little empirical data to collect, why did the authors broaden and think internationally. It would be desirable if it could be researched further in this area of ​​research the more there are, the more knowledge is given to social workers who work with disadvantaged children in their everyday lives.
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Ribeiro, Lais Martins da Costa. "A pré-história e reencontro com o tempo em Sem tecto, entre ruínas de Augusto Abelaira." Universidade do Estado do Rio de Janeiro, 2013. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=6004.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>O presente trabalho consiste em um estudo crítico do romance Sem tecto, entre ruínas, de Augusto Abelaira. Inicialmente é feita a análise sobre as possíveis consequências de uma apreensão descontínua e material do tempo, seus efeitos nas relações entre o protagonista e seu mundo, que se apresentam sob a forma de tédio e paralisia. Para a crítica proposta foram retomados conceitos descontinuidade e homogeneidade apresentados pelo filósofo Henri Bergson, além da noção de desligamento e desejo demonstrados pela sociologia de Zigmunt Bauman. O próximo alvo contemplado na pesquisa é a presença da memória e da lembrança indicados sob o ponto de vista contínuo do tempo, também analisados à luz da filosofia de Bergson, além do pensamento de Gilles Deleuze. A partir desse caminho investigativo é possível pensar a condição do protagonista como um confronto de si, uma experiência do tempo que traz uma revelação mediante a condição de ser tarde demais<br>This work provides a critical analysis on the novel Sem tecto, entre ruínas by Augusto Abelaira. In the first instance this study begans with the analysis of the possible consequences aroused by a material apprehension of time as well as its impact on relations between the protagonist and the world in which he lives, wich are presented by the feelings of boredom and paralysis. For the proposed work were taken up concepts of discontinuance and homogeneity created by the philosopher Henri Bergson, as well as the notion of detachment and desire demonstrated by the sociology of Zigmunt Bauman. The next target contemplated in the research is the presence of memory and recollection indicated under the point of view of continuous time, also examined by the philosophy of Bergson, in addition to the thought of Gilles Deleuze. Based on this investigative path is possible to consider the condition of the protagonist as a confront with itself, an experience of time that brings up a revelation upon the condition of being too late
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Books on the topic "Continuous/discontinuous connector"

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Bianconi, Ginestra. Classical Percolation, Generalized Percolation and Cascades. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198753919.003.0012.

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This chapter characterizes the robustness of multiplex and multilayer networks using classical percolation, directed percolation and antagonistic percolation. Classical percolation determines whether a finite fraction of nodes of the multilayer networks are connected by any type of connection. Classical percolation can be affected by multiplexity since the degree correlations among different layers can modulate the robustness of the entire multilayer network. Directed percolation describes the propagation of a disease requiring cooperative infection from different layers of the multiplex network. It displays a rich phase diagram including both continuous and discontinuous phase transitions. Antagonist percolation on a duplex network describes the competition between two layers and can give rise to hysteresis loops corresponding to phases that either one layer or the other can percolate Avalanches generated by the generalized Sandpile Model and Watts–Strogatz Model are also discussed, emphasizing their relevance for studying the stability of power grids and financial systems.
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Book chapters on the topic "Continuous/discontinuous connector"

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Mbir Bryant, Isaac, and Martha Osei-Marfo. "Innovative Designs in Household Biogas Digester in Built Neighbourhoods." In Anaerobic Digestion in Natural and Built Environments [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97210.

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Most household biogas digesters operate on continuous automatic stirring modes. Often, these digesters rely on electrical energy for their continuous operations which are often mesophilic. Rarely do manually-stirred discontinuous household biogas digesters operating on hyper-thermophilic conditions exist. This work seeks to highlight some innovative designs in a household biogas digester piloted in Terterkessim slum in the K.E.E.A. Municipality of the Central Region, Ghana. A pyramidal dome-shape biogas digester was constructed on an abandoned septic tank using blocks and concrete. The digester has a rectangular sub-surface base and a pyramidal gas holder above the surface of the soil. The digester has a two-blade manual stirrer, a ball bearing affixed at the bottom and a handle to manually mix the content of the digester. In order to heat the content of the digester to a hyper-thermophilic condition for hygienising the digestate, a solar-photovoltaic was installed on the roof of a toilet connected to the household biogas digester.
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Conference papers on the topic "Continuous/discontinuous connector"

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Guo, Xiaoqiang, Yong Yang, Baocheng Wang, and Zhigang Lu. "Generalized Space Vector Modulation for Grid-Connected Current Source Converter in both Continuous and Discontinuous Current Modes." In 2019 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2019. http://dx.doi.org/10.1109/apec.2019.8722160.

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Brake, M. R., M. J. Starr, and D. J. Segalman. "Modeling Constrained Layer Frictional Interfaces With Discontinuous Basis Functions." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62441.

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Constrained layer frictional interfaces, such as joints, are prevalent in engineering applications. Because these interfaces are often used in built-up structures, reduced order modeling techniques are utilized for developing simulations of them. One limitation of the existing reduced order modeling techniques, though, is the loss of the local kinematics due to regularization of the frictional interfaces. This paper aims to avoid the use of regularization in the modeling of constrained layer frictional interfaces by utilizing a new technique, the discontinuous basis function method. This method supplements the linear mode shapes of the system with a series of discontinuous basis functions that are used to account for nonlinear forces acting on the system. A symmetric, constrained layer frictional interface is modeled as a continuous system connected to two rigid planes by a series of Iwan elements. This symmetric model is used to test the hypothesis that symmetric problems are not subjected to the range of variability seen in physical structures, which have non-uniform pressure and friction distributions. Insights from solving the symmetric problem are used to consider the case where a non-uniform distribution of friction and pressure exists.
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Addison, Priscilla E., Thomas Oommen, and Pasi Lautala. "A Review of Past Geotechnical Performance of the Hudson Bay Rail Embankment and Its Comparison to the Current Condition." In 2015 Joint Rail Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/jrc2015-5780.

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The Hudson Bay Railway (HBR) is a 510 mile railway completed in 1929 in northern Manitoba, Canada. It connects domestic locations in North America with international destinations through the Port of Churchill. Permafrost was encountered during construction at milepost 136 in isolated peat bogs which continued in a gradual northward transition from discontinuous to continuous permafrost. Over the past 80 years, warming climate combined with poor engineering properties of the railway embankment material has resulted in further thawing of the discontinuous permafrost leading to differential settlement along the rail embankment and high annual maintenance costs. In a bid to understand the geothermal regime of the embankment, underlying subsurface condition, and to seek for solutions to stabilize the embankment, extensive work has been done from 1977 to the present time. This paper seeks to review reports of the past projects and compare the results against current conditions at selected test locations.
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Xue, X. L., Z. F. Sang, and W. Z. Jiang. "The Effect of a Discontinuous Welding Technique on Stress Levels of a Hot Tap Tee." In 2004 International Pipeline Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ipc2004-0226.

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With the development of petrochemical industry, the hot tapping technology has been widely used. A hot tapping is a technique that allows establishing a branch connection to a live pipeline. As it is a technology without halting transportation, it can avoid large economic losses and serious air pollution. When an operation of hot tapping is performed, a technology of discontinuous welding is sometimes used to reduce the localized high temperature that may cause burn-through of pipe. The purpose of this paper is to investigate whether the structure fabricated by discontinuous welding can work safely. Simulation of discontinuous welding was conducted to compare the temperature and stress distribution between continuous and discontinuous welding. It can be concluded that the temporary high temperature can be reduced effectively by discontinuous welding. However, due to frequent arc starting, a larger residual stress is resulted in. The stress level under internal pressure was studied by experiment using stress-gauging method. And the internal pressure was imposed by a high-lift pump. The failure load of the test model was 24.0MPa. Finite element simulation was also conducted to study the stress level under internal pressure. Then a comparison between experimental and FEA results was made. The experimental and FEA results indicate that the maximal stress occurs at the intersection area of the branch and run pipe. And it also can be seen that the results of radial deformation in the cross section are in good agreement. The metallurgical structure study shows that the welding and heat-treating procedures were proper. It can be concluded from this study that although the stress level is high under operating pressure, the structure can undergo the operating pressure safely.
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Kudish, Ilya I., Donald K. Cohen, and Brenda Vyletel. "Perfect Mechanical Sealing in Rough Elastic Contacts: Is it Possible?" In ASME/STLE 2012 International Joint Tribology Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ijtc2012-61070.

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Generally, it is assumed that under any applied force there will always be some gap between the surfaces in a contact of rough elastic surfaces resulting in a discontinuous (i.e. multiply connected) contact. The presence of gaps along the line contact relates to the ability to form an adequate mechanical seal across an interface. This paper will demonstrate that for a twice continuously differentiable rough surface with sufficiently small asperity amplitude and/or sufficiently large applied load and/or sufficiently low material elastic modulus singly connected contacts exist. Solution of a contact problem for a rough elastic half-plane and a perfectly smooth rigid indenter with sharp edges is considered. First, considered a problem with artificially created surface irregularity and it is shown that for such a surface the contact region is always multiply connected. An exact solution of the problem for an indenter with sharp edges resulting in a singly connected contact region is considered and it is conveniently expressed in the form of a series in Chebyshev polynomials. A sufficient (not necessary) condition for a contact of an indenter with sharp edges and a rough elastic surface to be singly connected is derived. The singly connected contact condition depends on the surface micro-topography, material effective elastic modulus, and applied load. It is determined that in most cases a normal contact of a twice continuously differentiable rough surface with sufficiently small asperity amplitude and/or sufficiently large applied load is singly connected.
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