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Journal articles on the topic 'Cascade'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Yamamoto, A., R. Murao, Y. Suzuki, and Y. Aoi. "A Quasi-Unsteady Study on Wake Interaction of Turbine Stator and Rotor Cascades." Journal of Turbomachinery 117, no. 4 (1995): 553–61. http://dx.doi.org/10.1115/1.2836567.

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Detailed flow measurements were made to study cascade interaction of turbine stator and rotor, using two linear cascades installed in series. The upstream cascade was moved to several places in the cascade pitchwise direction in order to change the relative location between the two cascades, and measurements were made in the downstream cascade. The result shows that the net total pressure loss generated in the downstream cascade becomes maximum when wakes of the upstream cascade pass the suction side of the downstream cascade passage, while the tip leakage loss generated in the downstream casc

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Lee, Yoo Seok, Koun Lim, and Shelley D. Minteer. "Cascaded Biocatalysis and Bioelectrocatalysis: Overview and Recent Advances." Annual Review of Physical Chemistry 72, no. 1 (2021): 467–88. http://dx.doi.org/10.1146/annurev-physchem-090519-050109.

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Enzyme cascades are plentiful in nature, but they also have potential in artificial applications due to the possibility of using the target substrate in biofuel cells, electrosynthesis, and biosensors. Cascade reactions from enzymes or hybrid bioorganic catalyst systems exhibit extended substrate range, reaction depth, and increased overall performance. This review addresses the strategies of cascade biocatalysis and bioelectrocatalysis for ( a) CO2 fixation, ( b) high value-added product formation, ( c) sustainable energy sources via deep oxidation, and ( d) cascaded electrochemical enzymatic

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3

Littmann, Enno, and Helge Ritter. "Learning and Generalization in Cascade Network Architectures." Neural Computation 8, no. 7 (1996): 1521–39. http://dx.doi.org/10.1162/neco.1996.8.7.1521.

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Incrementally constructed cascade architectures are a promising alternative to networks of predefined size. This paper compares the direct cascade architecture (DCA) proposed in Littmann and Ritter (1992) to the cascade-correlation approach of Fahlman and Lebiere (1990) and to related approaches and discusses the properties on the basis of various benchmark results. One important virtue of DCA is that it allows the cascading of entire subnetworks, even if these admit no error-backpropagation. Exploiting this flexibility and using LLM networks as cascaded elements, we show that the performance

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Suzuki, Daiki, Sho Tsugawa, Keiichiro Tsukamoto, and Shintaro Igari. "On the effectiveness of a contrastive cascade graph learning framework: The power of synthetic cascade data." PLOS ONE 18, no. 10 (2023): e0293032. http://dx.doi.org/10.1371/journal.pone.0293032.

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Analyzing the dynamics of information diffusion cascades and accurately predicting their behavior holds significant importance in various applications. In this paper, we concentrate specifically on a recently introduced contrastive cascade graph learning framework, for the task of predicting cascade popularity. This framework follows a pre-training and fine-tuning paradigm to address cascade prediction tasks. In a previous study, the transferability of pre-trained models within the contrastive cascade graph learning framework was examined solely between two social media datasets. However, in o

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Laskowski, Norbert, and Jacek Kurnatowski. "The usability of the Nash cascade-submerged cascade rainfall-runoff model with regard to other conceptual models." Geology, Geophysics and Environment 50, no. 3 (2024): 295–306. https://doi.org/10.7494/geol.2024.50.3.295.

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Conceptual hydrological models are an effective tool used to forecast runoff from catchments and assess changes in catchment dynamics. The article presents a modified concept of the Diskin parallel cascade model, with the replacement of one of the cascades with the submerged cascade model – the Nash cascade-submerged cascade model (NCSC2). Considering a watershed as a system where total runoff is determined by amounts of both surface and subsurface runoffs, the use of different model structures as surface and subsurface runoffs is reasonable. Adopting 13 different objective functions, the comp

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Zhang, Shuyi, Bo Yang, Hong Xie, and Moru Song. "Applications of an Improved Aerodynamic Optimization Method on a Low Reynolds Number Cascade." Processes 8, no. 9 (2020): 1150. http://dx.doi.org/10.3390/pr8091150.

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The effect of cascade aerodynamic optimization on turbomachinery design is very significant. However, for most traditional cascade optimization methods, aerodynamic parameters are considered as boundary conditions and rarely directly used as the optimization variables to realize optimization. Given this problem, this paper proposes an improved cascade aerodynamic optimization method in which an incidence angle and nine geometric parameters are used to parameterize the cascade and one modified optimization algorithm is adopted to find the cascade with the optimal aerodynamic performance. The im

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Azizov, T. E., A. Yu Smirnov, and G. A. Sulaberidze. "Comparison of the efficiency of square cascades with an additional product flow and double cascades to concentrate intermediate isotopes." Journal of Physics: Conference Series 2147, no. 1 (2022): 012006. http://dx.doi.org/10.1088/1742-6596/2147/1/012006.

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Abstract Original techniques were proposed for calculating and optimizing double cascades (DC) built of square cascades and a square cascade with an additional product flow (SCAP). Both cascade schemes (DC and SCAP) were tested in solving a task of simultaneous enrichment of three components of a model mixture to a pre-defined level. A comparison of the DC and SCAP efficiency was made according to the minimum of total cascade flow. The results have shown that the double cascade is more efficient in terms of the chosen criterion.

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Lipp, Vladimir, Igor Milov, and Nikita Medvedev. "Quantifying electron cascade size in various irradiated materials for free-electron laser applications." Journal of Synchrotron Radiation 29, no. 2 (2022): 323–30. http://dx.doi.org/10.1107/s1600577522000339.

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Studying electron- and X-ray-induced electron cascades in solids is essential for various research areas at free-electron laser facilities, such as X-ray imaging, crystallography, pulse diagnostics or X-ray-induced damage. To better understand the fundamental factors that define the duration and spatial size of such cascades, this work investigates the electron propagation in ten solids relevant for the applications of X-ray lasers: Au, B4C, diamond, Ni, polystyrene, Ru, Si, SiC, Si3N4 and W. Using classical Monte Carlo simulation in the atomic approximation, we study the dependence of the cas

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Amour, A., M. Bird, L. Chaudry, J. Deadman, D. Hayes, and C. Kay. "General considerations for proteolytic cascades." Biochemical Society Transactions 32, no. 1 (2004): 15–16. http://dx.doi.org/10.1042/bst0320015.

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Proteases are involved in the regulation of a wide variety of essential physiological processes, often by participating in a highly orchestrated sequence of events termed a ‘proteolytic cascade’. Four major proteolytic cascades with disease relevance are candidates for therapeutic intervention, namely caspase-mediated apoptosis, blood coagulation, the matrix metalloproteinase cascade and the complement cascade. Understanding the various steps involved in the functioning of a cascade is key to deciding possible points of intervention for the design of potential drug molecules. This brief review

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Geng, Qianqian, Xin Su, Ru Chen, Gang Huang, and Wanli Shi. "Kinetic Energy Cascade in the Frequency Domain from Satellite Products." Remote Sensing 17, no. 5 (2025): 877. https://doi.org/10.3390/rs17050877.

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Multiscale oceanic motions continuously transfer kinetic energy across various spatiotemporal scales through kinetic energy cascade. Satellite altimetry offers long-term daily ocean data at 0.25-degree resolution, enabling the analysis of energy cascades in both wavenumber and frequency domains. While energy cascade studies in the wavenumber domain are well-developed, frequency domain analyses remain limited. In this study, using 24 years of velocity data from satellite altimetry, we analyze the surface frequency-domain kinetic energy cascade primarily using the coarse-graining method. Compare

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Abufouda, Mohammed. "Postmortem Analysis of Decayed Online Social Communities: Cascade Pattern Analysis and Prediction." Complexity 2018 (October 9, 2018): 1–17. http://dx.doi.org/10.1155/2018/3873601.

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Recently, many online social networks, such as MySpace, Orkut, and Friendster, have faced inactivity decay of their members, which contributed to the collapse of these networks. The reasons, mechanics, and prevention mechanisms of such inactivity decay are not fully understood. In this work, we analyze decayed and alive subwebsites from the Stack Exchange platform. The analysis mainly focuses on the inactivity cascades that occur among the members of these communities. We provide measures to understand the decay process and statistical analysis to extract the patterns that accompany the inacti

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12

Yocum, A. M., and W. F. O’Brien. "Separated Flow in a Low-Speed Two-Dimensional Cascade: Part II—Cascade Performance." Journal of Turbomachinery 115, no. 3 (1993): 421–34. http://dx.doi.org/10.1115/1.2929269.

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This study was conducted for the purpose of providing a more fundamental understanding of separated flow in cascades and to provide performance data for fully stalled blade rows. Cascades of a single blade geometry and a solidity of unity were studied for three stagger angles and the full range of angle of attack extending well into the stalled flow regime. The Reynolds number was also varied for a limited number of cases. Results from velocity and pressure measurements made in the cascade and the overall cascade performance evaluated from these measurements are presented. In addition, results

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Dzhatdoev, Timur, Emil Khalikov, Anna Kircheva, Egor Podlesnyi, and Anastasia Telegina. "Intergalactic electromagnetic cascades in the magnetized Universe as a tool of astroparticle physics." EPJ Web of Conferences 191 (2018): 08009. http://dx.doi.org/10.1051/epjconf/201819108009.

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We review the physics of intergalactic electromagnetic cascades in the presence of the extragalactic magnetic field (EGMF). Various regimes of intergalactic electromagnetic cascades are considered depending on the number of cascade generations, the value of the cascade electron deflection angle, and the relations between the EGMF coherence length, typical cascade γ-ray mean free path, and electron energy loss length. We also review contemporary constraints on the EGMF parameters and explore the sensitivity of various γ-ray instruments to the EGMF parameters.

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VENEZIANO, DANIELE, and ANDREAS LANGOUSIS. "THE MAXIMUM OF MULTIFRACTAL CASCADES: EXACT DISTRIBUTION AND APPROXIMATIONS." Fractals 13, no. 04 (2005): 311–24. http://dx.doi.org/10.1142/s0218348x0500291x.

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We study the distribution of the maximum M of multifractal measures using discrete cascade representations. For such discrete cascades, the exact distribution of M can be found numerically. We evaluate the sensitivity of the distribution of M to simplifying approximations, including independence of the measure among the cascade tiles and replacement of the dressing factor by a random variable with the same distribution type as the cascade generator. We also examine how the distribution of M varies with the dimensionality of the support and the multiplicity of the cascade. Of these factors, dep

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15

Milner, Jo. "Molecular cascades in the Cascade Mountains." Trends in Genetics 12, no. 9 (1996): 372–73. http://dx.doi.org/10.1016/s0168-9525(96)80023-0.

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Klose, Ann Kristin, Nico Wunderling, Ricarda Winkelmann, and Jonathan F. Donges. "What do we mean, ‘tipping cascade’?" Environmental Research Letters 16, no. 12 (2021): 125011. http://dx.doi.org/10.1088/1748-9326/ac3955.

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Abstract Based on suggested interactions of potential tipping elements in the Earth’s climate and in ecological systems, tipping cascades as possible dynamics are increasingly discussed and studied. The activation of such tipping cascades would impose a considerable risk for human societies and biosphere integrity. However, there are ambiguities in the description of tipping cascades within the literature so far. Here we illustrate how different patterns of multiple tipping dynamics emerge from a very simple coupling of two previously studied idealized tipping elements. In particular, we disti

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WISE, FRANK, LIEJIA QIAN, and XIANG LIU. "APPLICATIONS OF CASCADED QUADRATIC NONLINEARITIES TO FEMTOSECOND PULSE GENERATION." Journal of Nonlinear Optical Physics & Materials 11, no. 03 (2002): 317–38. http://dx.doi.org/10.1142/s0218863502001024.

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Useful nonlinear phase shifts can be produced in cascaded quadratic processes. The issues that arise in the extension of cascade nonlinearities to the femtosecond regime are outlined in this paper, and initial applications of the cascade phase shifts to femtosecond pulse generation and propagation are reviewed. The results demonstrate that the cascade phase shifts offer unique properties, and in some cases pulse-shaping techniques based on cascade nonlinearities have potential to offer substantial performance improvements over existing approaches.

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Li, Gang, Tao Meng, Min Li, Mingle Zhou, and Delong Han. "A Dynamic Short Cascade Diffusion Prediction Network Based on Meta-Learning-Transformer." Electronics 12, no. 4 (2023): 837. http://dx.doi.org/10.3390/electronics12040837.

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The rise of social networks has greatly contributed to creating information cascades. Over time, new nodes are added to the cascade network, which means the cascade network is dynamically variable. At the same time, there are often only a few nodes in the cascade network before new nodes join. Therefore, it becomes a key task to predict the diffusion after the dynamic cascade based on the small number of nodes observed in the previous period. However, existing methods are limited for dynamic short cascades and cannot combine temporal information with structural information well, so a new model

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19

Lapuzin, Alexander, Valery Subotovich, Yuriy Yudin, Svetlana Naumenko, and Ivan Malymon. "Studying the Effect of the Tangential Nonuniformity of Flow Parameters on Gas Dynamic Performances of the Nozzle Cascades of Turbine Machines." NTU "KhPI" Bulletin: Power and heat engineering processes and equipment, no. 1-2 (December 28, 2022): 23–31. http://dx.doi.org/10.20998/2078-774x.2022.01.03.

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Aerodynamic efficiency of the nozzle cascades of steam and gas turbines is defined by many factors and one of them is the tangential and radial nonuniformity degree of the parameters of a spatial flow behind the cascades. The averaging of these parameters enables the determination of the integral parameters of the cascades, in particular two flow angles and the velocity angle or the kinetic energy loss coefficient. The angle that takes into account the level of the averaged radial component of the velocity defines the level of kinematic losses in the cascade. Even in the case of the cylindric

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20

Zhao, Chang Yu, Meng Xiao Bo, Jian Yong Zhu, and Guang Li Li. "Numerical Study of Wakes on Downstream Effects in Static Cascade Flow Field to Simulation of Rotor Wake." Advanced Materials Research 805-806 (September 2013): 1865–69. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.1865.

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The effects of moving wakes on the compressor cascade flow are discussed in this article, which can be regarded as the flow simulation between stages of compressor cascade. The moving wakes are simulated by moving cylinder before a compressor cascade flow. Different flow situations by changing the angle of wakes direction are presented by numerical simulation. The performance of cascade influenced by cylinder wakes can be related to several parameters, such as the distance between cascades in the shaft direction, the angle of wake direction. Loss of the cascade changes along with those paramet

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Kedziora, David J., Romesh Abeysuriya, Cliff C. Kerr, et al. "The Cascade Analysis Tool: software to analyze and optimize care cascades." Gates Open Research 3 (June 7, 2019): 1488. http://dx.doi.org/10.12688/gatesopenres.13031.1.

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Introduction: Cascades, which track the progressive stages of engagement on the path towards a successful outcome, are increasingly being employed to quantitatively assess progress towards targets associated with health and development responses. Maximizing the proportion of people with successful outcomes within a budget-constrained context requires identifying and implementing interventions that are not only effective, but also cost-effective. Methods: We developed a software application called the Cascade Analysis Tool that implements advanced analysis and optimization methods for understan

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Kedziora, David J., Romesh Abeysuriya, Cliff C. Kerr, et al. "The Cascade Analysis Tool: software to analyze and optimize care cascades." Gates Open Research 3 (December 24, 2019): 1488. http://dx.doi.org/10.12688/gatesopenres.13031.2.

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Introduction: Cascades, which track the progressive stages of engagement on the path towards a successful outcome, are increasingly being employed to quantitatively assess progress towards targets associated with health and development responses. Maximizing the proportion of people with successful outcomes within a budget-constrained context requires identifying and implementing interventions that are not only effective, but also cost-effective. Methods: We developed a software application called the Cascade Analysis Tool that implements advanced analysis and optimization methods for understan

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Sekretarev, Yuri, Sherkhon Sultonov, and Victor Shalnev. "Optimal Control Mode of the Vakhsh Hydropower Reservoirs to Reduce Electricity Shortages in Tajikistan." Applied Mechanics and Materials 792 (September 2015): 446–50. http://dx.doi.org/10.4028/www.scientific.net/amm.792.446.

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The paper is aimed to determine runoff limits of the Vakhsh cascade hydropower plant, which are the main parameters when setting optimum modes of the hydropower plant. It is proposed to increase power generation of the hydropower plant of the Vakhsh cascade by assigning the optimal modes of operation of hydropower plants. The peculiarities of managing the cascades of hydropower plants are described. The description of the Vakhsh cascade hydropower plant and the method of controlling the reservoir of the cascade of the hydropower plants are given.

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Anandaram, Harishchander. "Modeling of Cascade Regulation in Psoriasis: A Comprehensive Approach." ECS Transactions 107, no. 1 (2022): 2627–35. http://dx.doi.org/10.1149/10701.2627ecst.

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The implication of a successful mathematical model in applied genomics requires mathematical modeling of regulatory cascades in a gene-regulated network in autoimmune disorders (AIDs) such as psoriasis, is a difficult job to complete in the current age of applied genomics. There were four computational approaches used to address the challenge: (a) Gene Assisted Cascade Regulation, (b) Differential Gene Expression Cascade, (c) Gene Variant Cascade, and (d) Biologic Cascade to identify a potential biomarker for treating AIDS in the future, and finally, the reconstructed network concerning activa

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Li, Jiqing, and Xiong Yang. "Mid and long-term optimize scheduling of cascade hydro-power stations based on modified GA-POA method." Proceedings of the International Association of Hydrological Sciences 379 (June 5, 2018): 199–203. http://dx.doi.org/10.5194/piahs-379-199-2018.

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Abstract. In this paper, to explore the efficiency and rationality of the cascade combined generation, a cascade combined optimal model with the maximum generating capacity is established, and solving the model by the modified GA-POA method. It provides a useful reference for the joint development of cascade hydro-power stations in large river basins. The typical annual runoff data are selected to calculate the difference between the calculated results under different representative years. The results show that the cascade operation of cascaded hydro-power stations can significantly increase t

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Khokhlov, S. S., A. G. Bogdanov, V. A. Khomyakov, et al. "Energy spectrum of cascade showers initiated by cosmic ray muons in the Cherenkov water detector." EPJ Web of Conferences 208 (2019): 08018. http://dx.doi.org/10.1051/epjconf/201920808018.

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Results of analysis of experimental data on cascade showers with energies of 0.1 – 10 TeV initiated by muons in the Cherenkov water detector NEVOD are presented. The method of selection and reconstruction of cascade parameters in the volume of the detector is discussed. Experimental distributions of cascade axes in zenith angle and energy spectrum of cascades are obtained. The measured distributions are compared with results of calculations.

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Zhong, Chongxin, Yanmeng Xing, Ying Fan, and An Zeng. "Predicting the cascading dynamics in complex networks via the bimodal failure size distribution." Chaos: An Interdisciplinary Journal of Nonlinear Science 33, no. 2 (2023): 023137. http://dx.doi.org/10.1063/5.0119902.

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Cascading failure as a systematic risk occurs in a wide range of real-world networks. Cascade size distribution is a basic and crucial characteristic of systemic cascade behaviors. Recent research works have revealed that the distribution of cascade sizes is a bimodal form indicating the existence of either very small cascades or large ones. In this paper, we aim to understand the properties and formation characteristics of such bimodal distribution in complex networks and further predict the final cascade size. We first find that the bimodal distribution is ubiquitous under certain conditions

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Liu, Bo, Qidong Chen, Jun Li, and Xiaochen Mao. "Novel Optimization Design Methods of Highly Loaded Compressor Cascades Considering Endwall Effect." Entropy 24, no. 6 (2022): 830. http://dx.doi.org/10.3390/e24060830.

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The endwall effect has a great impact on the aerodynamic performance of compressor blades. Based on three conventional near-endwall blade modeling methods of bowed blade, endbend blade and leading-edge strake blade (LESB), two combined optimization design methods of highly loaded blades have been developed considering the endwall effect in the current study, i.e., the bowed blade combined with the LESB (bowed LESB blade) and the endbend blade combined with the LESB (endbend LESB blade). Optimization designs were conducted for a compressor cascade with low solidity by using the two combined mod

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Uryson, Anna. "Influence of Extragalactic Magnetic Fields on Extragalactic Cascade Gamma-Ray Emission." Universe 8, no. 11 (2022): 569. http://dx.doi.org/10.3390/universe8110569.

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We discuss the influence of extragalactic magnetic fields on the intensity of gamma-ray emission produced in electromagnetic cascades from ultra-high energy cosmic rays propagating in extragalactic space. Both cosmic rays and cascade particles propagate mostly out of galaxies, galactic clusters, and large-scale structures, as their relative volume is small. Therefore, their magnetic fields weakly affect emission produced in cascades. Yet, estimates of this influence can be useful in searching for dark matter particles when components of extragalactic gamma-ray background should be known, inclu

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Aizyatullova, G. R., L. V. Pashkova, and T. K. Sakharnova. "Characteristic of cascades in sports aerobics." Physical Culture Sport Tourism Motor Recreation 8, no. 4 (2023): 13–17. http://dx.doi.org/10.47475/2500-0365-2023-8-4-13-17.

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This article is devoted to the topical issue concerning the substantiation of the content and characteristics of cascade elements in sports aerobics. Each competitive composition of the strongest athletes of Russia and the world contains the sequential performance of two or three elements of complexity and acrobatics, the content of which depends on the degree of physical and technical fitness of the gymnast. Moreover, the demonstration of cascade exercises in a competitive composition gives an advantage to the athlete in the form of additional points, the so-called allowance, for one or anoth

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Fritzsche, Stephan, Patrick Palmeri, and Stefan Schippers. "Atomic Cascade Computations." Symmetry 13, no. 3 (2021): 520. http://dx.doi.org/10.3390/sym13030520.

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Atomic cascades are ubiquitous in nature and they have been explored within very different scenarios, from precision measurements to the modeling of astrophysical spectra, and up to the radiation damage in biological matter. However, up to the present, a quantitative analysis of these cascades often failed because of their inherent complexity. Apart from utilizing the rotational symmetry of atoms and a proper distinction of different physical schemes, a hierarchy of useful approaches is therefore needed in order to keep cascade computations feasible. We here suggest a classification of atomic

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Uryson, A. V. "Effect of extragalactic magnetic field on cascade gamma-ray emission." Izvestiâ Akademii nauk SSSR. Seriâ fizičeskaâ 88, no. 3 (2024): 495–97. http://dx.doi.org/10.31857/s0367676524030216.

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The intensity of diffuse cascade gamma-ray emission produced in electromagnetic cascades when ultra-high energy cosmic rays propagate in extragalactic space is discussed. It is obtained that in the range of ~107—109 eV diffuse cascade gamma-ray spectra weakly depends on extragalactic magnetic field value. Thus, there is no need to refine extragalactic magnetic field models to estimate the intensity of cascade emission in this energy range.

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Zhu, Ya-Hong, and Jian Jiao. "Automatic Control of Mobile Industrial Robot Based on Multiobjective Optimization Strategy." Journal of Electrical and Computer Engineering 2022 (March 27, 2022): 1–7. http://dx.doi.org/10.1155/2022/7825906.

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In order to solve the optimal cascade mobile path selection problem when mobile industrial robots repair network coverage holes, a cascade mobile path selection optimization method considering the number and energy of intermediate cascade nodes is proposed. By calculating the energy availability of intermediate cascade nodes, this method further obtains the energy availability and decisive energy of each path, selects the optimal cascade mobile path from the perspective of multiobjective optimization, effectively balances the energy consumption of each mobile industrial robot, makes full use o

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Xu, Zhanxing, Qiang Liu, Lingjun Xu, Li Mo, Yongchuan Zhang, and Xin Zhang. "Optimal Dispatching Rules for Peak Shaving of Cascaded Hydropower Stations in Response to Large-Scale New Energy Integration." Processes 13, no. 3 (2025): 612. https://doi.org/10.3390/pr13030612.

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Fully tapping into the load regulation capacity of cascade hydropower stations on a river, in coordination with wind and photovoltaic power stations, can effectively suppress power fluctuations in new energy and promote grid integration and the consumption of new energy. To derive the peak shaving dispatching rules for cascaded hydropower stations in provincial power systems with a high proportion of new energy integration, a short-term peak shaving dispatching model for cascaded hydropower stations was first established considering large-scale new energy consumption; secondly, based on statis

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Izonin, Ivan, Roman Muzyka, Roman Tkachenko, Michal Gregus, Natalya Kustra, and Stergios-Aristoteles Mitoulis. "An approach toward improvement of ensemble method’s accuracy for biomedical data classification." International Journal of Electrical and Computer Engineering (IJECE) 14, no. 5 (2024): 5949. http://dx.doi.org/10.11591/ijece.v14i5.pp5949-5960.

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Amidst rapid technological and healthcare advancements, biomedical data classification using machine learning (ML) is pivotal for revolutionizing medical diagnosis, treatment, and research by organizing vast healthcare-related data. Despite efforts to apply single ML models on clean datasets, satisfactory classification accuracy can still be elusive. In such cases, ML-based ensembles offer a promising solution. This paper explores cascaded ensembles as highly accurate methods. Existing cascade classifiers often partition large datasets into equal unique parts, limiting accuracy due to insuffic

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Beguerisse-Díaz, Mariano, Radhika Desikan, and Mauricio Barahona. "Linear models of activation cascades: analytical solutions and coarse-graining of delayed signal transduction." Journal of The Royal Society Interface 13, no. 121 (2016): 20160409. http://dx.doi.org/10.1098/rsif.2016.0409.

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Cellular signal transduction usually involves activation cascades, the sequential activation of a series of proteins following the reception of an input signal. Here, we study the classic model of weakly activated cascades and obtain analytical solutions for a variety of inputs. We show that in the special but important case of optimal gain cascades (i.e. when the deactivation rates are identical) the downstream output of the cascade can be represented exactly as a lumped nonlinear module containing an incomplete gamma function with real parameters that depend on the rates and length of the ca

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Louthan, Allison, Emily Valencia, Dino J. Martins, et al. "Large mammals generate both top-down effects and extended trophic cascades on floral-visitor assemblages." Journal of Tropical Ecology 35, no. 4 (2019): 185–98. http://dx.doi.org/10.1017/s0266467419000142.

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AbstractCascading effects of high trophic levels onto lower trophic levels have been documented in many ecosystems. Some studies also show evidence of extended trophic cascades, in which guilds dependent on lower trophic levels, but uninvolved in the trophic cascade themselves, are affected by the trophic cascade due to their dependence on lower trophic levels. Top-down effects of large mammals on plants could lead to a variety of extended trophic cascades on the many guilds dependent on plants, such as pollinators. In this study, floral-visitor and floral abundances and assemblages were quant

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Cho, C.-H., S.-Y. Cho, S. E. Gorrell, K.-Y. Ahn, and Y.-C. Kim. "An inverse design of a double-pitch passage for an infinite cascade model experiment." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 224, no. 1 (2009): 157–67. http://dx.doi.org/10.1243/09544062jmes1552.

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In this study, sidewalls of a turbine cascade experimental apparatus are designed to satisfy periodic flow conditions with two blades without any flow control or tailboards. Generally, the turbine cascade experimental apparatus needs removing fluid from the cascade walls or adjusting tailboards located downstream of the cascade to establish periodic flow conditions through the cascade blades. If a linear turbine cascade often consists of only a few blades within a passage, advantages to this experimental arrangement are increased from using larger turbine cascades, a lower mass flowrate and co

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Cao, Puyu, Luanjiao Liu, Jinfeng Zhang, Guidong Li, Rui Zhu, and Zhiqin Yang. "A Study of the Hydrodynamic Characteristics of Two-Dimensional Tandem Cascades." Water 16, no. 5 (2024): 679. http://dx.doi.org/10.3390/w16050679.

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In comparison to single-row cascades, tandem cascades offer the advantages of reduced losses and enhanced operational capabilities, making them widely employed in compressor applications. However, current research on tandem cascades in hydraulic equipment remains relatively limited. In order to explore the potential application of two-dimensional tandem cascade structures in hydrodynamics and investigate their performance differences from single-row cascades, this study proposes a design scheme for a tandem cascade based on an existing single-row cascade design. Numerical simulation technology

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Liu, Baojie, Hengtao Shi, and Xianjun Yu. "A new method for rapid shock loss evaluation and reduction for the optimization design of a supersonic compressor cascade." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 232, no. 13 (2017): 2458–76. http://dx.doi.org/10.1177/0954410017715277.

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A one-dimensional analytical shock loss prediction method was proposed to tailor the shock system, i.e. the strength of the first and second passage shock, and reduce the shock loss in a supersonic cascade. To develop the one-dimensional analytical model, the shock system in a supersonic cascade was divided into four processes which can be seen in most supersonic compressor cascade, i.e. the flow upstream the extending-external shock, the flow between the extending-external shock and the first passage shock, the accelerating flow from the first passage shock to the second passage shock, and th

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Huang, Xue, Jingyuan L. Zhang, Vadim Tokranov, Serge Oktyabrsky, and Claire F. Gmachl. "Same-wavelength cascaded-transition quantum cascade laser." Applied Physics Letters 103, no. 5 (2013): 051113. http://dx.doi.org/10.1063/1.4817737.

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Rehberger, Max, and Michael Hiete. "Allocation Procedures for Generic Cascade Use Cases - An Evaluation Using Monte Carlo Analysis." Materials Science Forum 959 (June 2019): 32–45. http://dx.doi.org/10.4028/www.scientific.net/msf.959.32.

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Cascade use - a concept for increasing resource efficiency by multiple use of resources - gains in importance, in particular for bio-based materials. Allocation of environmental burdens and costs along the cascade chain plays a major role in deciding whether to establish a cascade or not. This highlights the need for a methodology for properly assessing different types of cascades. To provide guidance in terms of choice of allocation procedure available from life cycle assessment (LCA), Monte Carlo analysis is used. Especially hybrid, individually tailored allocation approaches can be evaluate

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Bakir, F., S. Kouidri, T. Belamri, and R. Rey. "On a General Method of Unsteady Potential Calculation Applied to the Compression Stages of a Turbomachine—Part I: Theoretical Approach." Journal of Fluids Engineering 123, no. 4 (2001): 780–86. http://dx.doi.org/10.1115/1.1399286.

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An algorithm using the singularity method was developed. It allows taking into account the interaction between fixed and mobile cascades. Its principle is based on the summation of discrete vortices distributed periodically on the rotor and stator profiles. The overall matrix, obtained by applying the boundary conditions, takes into account the complexity of the studied cascade geometry (presence or not of splitter blades, possibly variable pitch of the profiles, etc…) To illustrate the interest and the impact of the algorithm, two parametric studies on turbomachines cascade are presented: Pla

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Poletaev, Gennady, Darya Novoselova, Mikhail D. Starostenkov, Vladimir Tsellermaer, and Viktor Kovalenko. "The Study of Inhibition of Atom-Atom Collisions Cascades by Ni-Al (100) Interphase Boundary." Key Engineering Materials 685 (February 2016): 8–12. http://dx.doi.org/10.4028/www.scientific.net/kem.685.8.

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The interaction of atom-atom collisions cascades with Ni-Al interphase boundary was studied by the method of molecular dynamics. It was shown that the interphase boundary partially absorbs the cascade energy. The degree of energy absorption of the cascade by the interphase boundary increases with the growth of the structural imperfection of the boundary and density of the misfit dislocations, and also with increase of distance between the boundary and the place of the cascade initiation.

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Zheng, Huan, and Zhenggui Zhou. "Corner separation control in compressor stators with jets from the blade leading edge." Advances in Mechanical Engineering 15, no. 2 (2023): 168781322311524. http://dx.doi.org/10.1177/16878132231152408.

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Corner separation occurs easily in highly loaded compressor stators. This paper proposes a novel slot inside the stator blade, with the slot inlet located at the blade leading edge and the slot outlet located at the suction surface, by using the momentum of the incoming flow to form a high velocity jet to control the development of the boundary layer on the blade suction surface. For 3D compressor cascades, the influence of the key geometrical slot parameters on the flow fields in the slot and cascade passage and the aerodynamic performance of the cascade were investigated with a numerical met

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Bartnik, Adam, Piotr Moniewski, and Przemysław Tomalski. "Seasonality Of The Basic Physical And Chemical Characteristics Of Water Flowing Through The Cascades Of Small Reservoirs In Urban And Suburban Areas." Limnological Review 13, no. 2 (2013): 63–71. http://dx.doi.org/10.2478/limre-2013-0007.

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Abstract The paper showed the changes of characteristics of river water flowing through the cascades of reservoirs. One of the cascades is located in a highly urbanized area of Lodz. The second is in a suburban area on the northern outskirts of Lodz agglomeration. However, it still remains under the influence of storm water discharged from the highway. Every 2 weeks, in 4 monitoring points (on the input and on the output of each cascade), the measurements of basic physical and chemical water parameters were made (using data registered in cross-sections obtained between 2006 and 2012). The anal

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Han, Jinyoung, Daejin Choi, Jungseock Joo, and Chen-Nee Chuah. "Predicting Popular and Viral Image Cascades in Pinterest." Proceedings of the International AAAI Conference on Web and Social Media 11, no. 1 (2017): 82–91. http://dx.doi.org/10.1609/icwsm.v11i1.14879.

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The word-of-mouth diffusion has been regarded as an important mechanism to advertise a new idea, image, technology, or product in online social networks (OSNs). This paper studies the prediction of popular and viral image diffusion in Pinterest. We first characterize an image cascade from two perspectives: (i) volume — how large the cascade is, that is, total number of users reached, and (ii) structural virality — how many users in the cascade are responsible for attracting other users. Our model predicts whether an image will be (a) popular in terms of the volume of its cascade, or (b) viral

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Babichev A.V., Kolodeznyi E.S., Gladyshev A.G., et al. "Heterostructure of a 2.5 THz range quantum-cascade detector." Semiconductors 56, no. 3 (2022): 259. http://dx.doi.org/10.21883/sc.2022.03.53069.9750.

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The design of the heterostructure of a 2.5 THz range quantum-cascade detector is proposed and heterostructure is grown by molecular-beam epitaxy technique. To optimize the thicknesses of the layers of the heterostructure cascades, a numerical method for iterative solution of the Schrodinger--Poisson equation in the k· p formalism was used. The grown heterostructure of the quantum-cascade detector showed a high structural perfection, confirmed by the small values of the average FWHM of the high-order satellite peaks on the X-ray diffraction rocking curves, which were (8.3±0.5)n. Analysis of dar

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Takahashi, Akiyuki, Kotoko Hirose, Naoki Soneda та Masanori Kikuchi. "Molecular Dynamics Simulation of Displacement Cascade in α-Zr". Key Engineering Materials 306-308 (березень 2006): 923–28. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.923.

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In this work, the point defect production in α-Zr at 600K by displacement cascade with Primary Knock-on Atom (PKA) energy up to 20KeV has been investigated by molecular dynamics (MD) simulations. Especially, the influence of subcascades formation on the point defect and cluster production in 20keV cascades has been investigated in detail. The subcascade formation was seen in 36 cases of 20keV cascade simulations out of 50 cases. As the damaged areas are divided into many small areas, the maximum size of point defect cluster tends to decrease when the displacement cascade is settled. On the oth

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BABIANO, ARMANDO, and ANTONELLO PROVENZALE. "Coherent vortices and tracer cascades in two-dimensional turbulence." Journal of Fluid Mechanics 574 (February 15, 2007): 429–48. http://dx.doi.org/10.1017/s0022112006004265.

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We study numerically the scale-to-scale transfers of enstrophy and passive-tracer variance in two-dimensional turbulence, and show that these transfers display significant differences in the inertial range of the enstrophy cascade. While passive-tracer variance always cascades towards small scales, enstrophy is characterized by the simultaneous presence of a direct cascade in hyperbolic regions and of an inverse cascade in elliptic regions. The inverse enstrophy cascade is particularly intense in clusters of small-scales elliptic patches and vorticity filaments in the turbulent background, and

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