Готові списки джерел за темами / CORNER CONFIGURATION

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Добірка наукової літератури з теми "CORNER CONFIGURATION"

Автор: Grafiati

Опубліковано: 11 вересня 2023

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Статті в журналах з теми "CORNER CONFIGURATION"

Wang, Hejian, Bo Liu, Xiaochen Mao, Botao Zhang, and Zonghao Yang. "Combined Flow Control Strategy Investigation for Corner Separation and Mid-Span Boundary Layer Separation in a High-Turning Compressor Cascade." Entropy 24, no. 5 (April 19, 2022): 570. http://dx.doi.org/10.3390/e24050570.

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To comprehensively control the corner separation and mid-span boundary layer (BL) separation, this study proposed and evaluated two new flow control configurations. One is a slotted configuration composed of blade-end and whole-span slots, and the other is a combined configuration with end-wall BL suction and whole-span slot. Additionally, the adaptability of the combined configuration to the lower blade solidity (c/t) condition was verified. The results indicate that both the slotted configuration and combined configuration can eliminate the mid-span BL separation, but a better reduction in the corner separation can be observed in the combined configuration. The two configurations can remove the concentrated shedding vortex and reduce the passage vortex (PV) for the datum cascade, but the wall vortex (WV) will be generated. By contrast, the combined configuration has weaker WV and PV than the slotted configuration, which contributes to further reducing the corner separation. In the combined configuration with a c/t of 1.66 and 1.36, the total pressure loss is reduced by 38.4% and 42.1%, respectively, on average, while the averaged static pressure rise coefficient is increased by 16.2% and 17.6%, respectively. This is advantageous for enhancing the working stability and pressure diffusion capacity for compressors. Besides this, the combined configuration with lower c/t can achieve a stronger pressure diffusion capacity and smaller loss than the higher c/t datum cascade. Therefore, the combined configuration is advantageous to the improvement of the aero-engine thrust-to-weight ratio through decreasing the compressor single-stage blade number.

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Raut, Shruti Diliprao, and Prof Vishal Sapate. "Comparative Study on Seismic Analysis of Multistorey Building Using STAD Pro - A Review." International Journal for Research in Applied Science and Engineering Technology 11, no. 7 (July 31, 2023): 1673–75. http://dx.doi.org/10.22214/ijraset.2023.54932.

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Abstract: This literature review provides a comprehensive analysis of the behavior of buildings with concave corners in earthquake-prone areas. The study emphasizes the impact of irregularities in building planning, particularly in concave corners, on the structural performance during seismic events. Findings from various research studies highlight the necessity for detailed and comprehensive analyses, including both linear and non-linear dynamic analyses, to accurately understand the behavior and response of such structures. The research underscores the significance of regular building configuration to enhance earthquake resilience, especially in regions susceptible to seismic activity. Buildings with concave corners are found to be more vulnerable to earthquake damage compared to structures with regular configurations. Additionally, larger structures and longer overhangs are shown to result in increased stress and pressure on the reentrant corner region. Overall, the literature review emphasizes the importance of further research in the field of concave corner irregularities to develop effective seismic design and mitigation strategies. A deeper understanding of the behavior and response of buildings with concave corners will contribute to the development of safer and more resilient structures in earthquake-prone areas. Comprehensive and advanced analyses are recommended to accurately assess the performance of such buildings and to establish guidelines for their proper design and construction.

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YIMER, ADAL MENGESHA, and ASHOK KUMAR AHUJA. "Effect of Corner Configuration on Wind Pressure Distribution on Tall Buildings." INTERNATIONAL JOURNAL OF EARTH SCIENCES AND ENGINEERING 10, no. 02 (April 26, 2017): 418–26. http://dx.doi.org/10.21276/ijee.2017.10.0243.

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Toribio, Jesús, Beatriz González, Juan-Carlos Matos, and Óscar Mulas. "Stress Intensity Factors for Embedded, Surface, and Corner Cracks in Finite-Thickness Plates Subjected to Tensile Loading." Materials 14, no. 11 (May 25, 2021): 2807. http://dx.doi.org/10.3390/ma14112807.

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The aim of this study is to obtain the stress intensity factor (SIF) along the crack front of elliptical cracks located in finite-thickness plates subjected to imposed displacement or applied tensile load, for different crack geometries (relative depths and aspect ratios) and crack configurations (embedded, surface, and corner). The SIF was calculated from the J-integral, obtained by the finite element method. The results show how the SIF grows with the increase in the relative crack depth and with the decrease in the aspect ratio, with the corner crack being the most dangerous configuration and the embedded crack the most favorable configuration. By increasing the plate length, the SIF rises when the plate is under imposed displacement and decreases when the plate is subjected to applied tensile load, both cases tending towards the same SIF curve.

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Davey, Robert C., Raphaël C. Assier, and I. David Abrahams. "An Efficient Semi-Analytical Scheme for Determining the Reflection of Lamb Waves in a Semi-Infinite Elastic Waveguide." Applied Sciences 12, no. 13 (June 25, 2022): 6468. http://dx.doi.org/10.3390/app12136468.

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The classical problem of reflection of Lamb waves from a free edge perpendicular to the centre line of an elastodynamic plate is studied. It is known that Lamb wave expansions for the displacement and stress fields poorly represent the irregular behaviour near corners, leading to the slow convergence of a series of such waves. The form of the irregularity for an elastodynamic corner is derived asymptotically, and a new solution method, which incorporates this corner behaviour analytically, is then implemented. Results are presented showing that this new approach represents the near-field and far-field behaviour very accurately, requiring very modest numbers of Lamb wave and corner modes. Further, it is revealed that the method can recover the trapped-mode phenomenon encountered in this configuration at the Lamé frequency and a specific Poisson’s ratio that we find to be approximately 0.224798.

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Adeeb, Ehsan, Basharat Ali Haider, and Chang Hyun Sohn. "Influence of rounded corners on flow interference between two tandem cylinders using FVM and IB-LBM." International Journal of Numerical Methods for Heat & Fluid Flow 28, no. 7 (July 2, 2018): 1648–63. http://dx.doi.org/10.1108/hff-08-2017-0319.

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Purpose The purpose of this study is to numerically investigate the influence of corner radius on the flow around two square cylinders in tandem arrangements at a Reynolds number of 100. Design/methodology/approach Six models of square cylinders with corner radii R/D = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 (where R denotes the corner radius and D denotes the characteristic dimension of the body) were studied using an immersed boundary-lattice Boltzmann method, and the results were compared with those obtained using a two-dimensional unsteady finite volume method. The cylinders were mounted in a tandem configuration (1.5 ≤ L/D ≤ 10 where L denotes the in-line separation between the cylinder centers). The simulated models were quantitatively compared to the aerodynamic force coefficients and Strouhal number. Furthermore, qualitative analysis is presented in the form of flow streamlines and vorticity contours. Findings The R/D and L/D values were varied to observe the variation in the flow characteristics in the gap and wake regions. The numerical results revealed two different regimes over the spacing range. The drag force on the downstream cylinder was negative for all corner radii values when the cylinders were placed at L/D = 3.0 (a single-body system). Subsequently, a sudden increase was observed in the aerodynamic forces (drag and lift) when L/D increased. A different gap value was identified in the transformation from a single-body to a two-body system for different corner radii. To verify the single-body system, a simulation was carried out with a single cylinder having a longitudinal geometric dimension equal to the tandem arrangement (L/D + D). Furthermore, in a single-body regime, the total drag of a tandem cylinder was less than that of a single cylinder, thus demonstrating the benefits of using tandem structures. A significant reduction in the aerodynamic forces and drag force was achieved by rounding the sharp corners and placing the cylinders in close proximity. An appropriate configuration of the tandem cylinders with a rounded corner of R/D = 0.4 and 0.5 at L/D = 3.0 and the range is enhanced to L/D = 4.0 for 0.0 ≤ R/D < 0.4 to achieve adequate drag reduction. Originality/value To the best of the author’s knowledge, there is a paucity of studies examining the effect of corner radius on bluff bodies arranged in a tandem configuration.

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Mecha, Peter, Fang Yali, Emmanuel Awuah, Odero Alele, Jiayu Zhang, and Chen Kunjie. "Deflectors as the performance booster component in designing a side-ventilated heat pump cabinet dryer for vegetables." Thermal Science, no. 00 (2023): 130. http://dx.doi.org/10.2298/tsci230305130m.

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Unbalanced drying air and temperature distribution in a dryer is among the major cause of non-uniformity in moisture content of dried food. Thus, the distribution of air and temperature in corner-ended, corner-ended with deflector, curved-ended, and curved-ended with defectors were investigated. Velocities used were 2 ms-1, 4 ms-1, and 6 ms-1 while temperatures ranged from 40?C -60?C. The design with lowest deviations in simulated and actual drying parameters was fabricated to dry mushrooms. Results showed that adding deflectors improved drying air and temperature distribution. The corner-ended with deflector dryer configuration was superior to other designs, with 6 ms-1 and 60?C being optimal. A mass transfer simulation of the corner-ended with deflectors configuration had moisture evaporate from 1.00 to 0.11 in 2000 seconds. A comparison of moisture ratios in the two dryers gave R? = 0.9965, which was acceptable. Drying at 55?C-60?C gave the best lentinan content and rehydration ratio for mushrooms.

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Green, Ben. "Lower bounds for corner-free sets." New Zealand Journal of Mathematics 51 (July 29, 2021): 1–2. http://dx.doi.org/10.53733/86.

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We show that for infinitely many $N$ there is a set $A \subset [N]^2$ of size $2^{-(c + o(1)) \sqrt{\log_2 N}} N^2$ not containing any configuration $(x, y), (x + d, y), (x, y + d)$ with $d \neq 0$, where $c = 2 \sqrt{2 \log_2 \frac{4}{3}} \approx 1.822\dots$.

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Ouyang, Hong Yu, and Bi Feng Chen. "Street Corner Space Landscape Design." Applied Mechanics and Materials 641-642 (September 2014): 489–92. http://dx.doi.org/10.4028/www.scientific.net/amm.641-642.489.

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Through to the street corner space of the urban residents' daily life experience of social investigation, put forward the guiding principles for the location of corner space landscape design can identification, space versatility, use safety, environment suitability principle. Conclusion from the location awareness, zoning, personality construction and processing in the detail design method. For waterscape design, plant configuration, pavement and recreation facilities such as the design of the landscape elements to improve the edge space landscape quality present situation, the cultural connotation and aesthetic value, improve environment conducive to the development of spiritual civilization.

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Jaeger, Rick, Katharina Tondera, Carolyn Jacobs, Mark Porter, and Neil Tindale. "Numerical and Physical Modeling to Improve Discharge Rates in Open Channel Infrastructures." Water 11, no. 7 (July 10, 2019): 1414. http://dx.doi.org/10.3390/w11071414.

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This paper presents the findings of a study into how different inlet designs for stormwater culverts increase the discharge rate. The objective of the study was to develop improved inlet designs that could be retro-fitted to existing stormwater culvert structures in order to increase discharge capacity and allow for changing rainfall patterns and severe weather events that are expected as a consequence of climate change. Three different chamfer angles and a rounded corner were simulated with the software ANSYS Fluent, each of the shapes tested in five different sizes. Rounded and 45 ∘ chamfers at the inlet edge performed best, significantly increasing the flow rate, though the size of the configurations was a critical factor. Inlet angles of 30 ∘ and 60 ∘ caused greater turbulence in the simulations than did 45 ∘ and the rounded corner. The best performing shape of the inlet, the rounded corner, was tested in an experimental flume. The flume flow experiment showed that the optimal inlet configuration, a rounded inlet (radius = 1/5 culvert width) improved the flow rate by up to 20% under submerged inlet control conditions.

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Більше джерел

Дисертації з теми "CORNER CONFIGURATION"

Durin, Bruno. "Configurations dépendantes du temps dans le formalisme perturbatif de le théorie des cordes." Phd thesis, Paris 6, 2006. https://tel.archives-ouvertes.fr/tel-00011702.

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Chen, Lihui. "Towards an efficient, unsupervised and automatic face detection system for unconstrained environments." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/8132.

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Nowadays, there is growing interest in face detection applications for unconstrained environments. The increasing need for public security and national security motivated our research on the automatic face detection system. For public security surveillance applications, the face detection system must be able to cope with unconstrained environments, which includes cluttered background and complicated illuminations. Supervised approaches give very good results on constrained environments, but when it comes to unconstrained environments, even obtaining all the training samples needed is sometimes impractical. The limitation of supervised approaches impels us to turn to unsupervised approaches. In this thesis, we present an efficient and unsupervised face detection system, which is feature and configuration based. It combines geometric feature detection and local appearance feature extraction to increase stability and performance of the detection process. It also contains a novel adaptive lighting compensation approach to normalize the complicated illumination in real life environments. We aim to develop a system that has as few assumptions as possible from the very beginning, is robust and exploits accuracy/complexity trade-offs as much as possible. Although our attempt is ambitious for such an ill posed problem-we manage to tackle it in the end with very few assumptions.

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Hermant, Nicolas. "Observation, modélisation et simulation des vibrations des maquettes de plis vocaux : applications à des configurations pathologiques." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT111/document.

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Les travaux de cette thèse portent sur la compréhension des phénomènes physiques sous-jacents à la production normale ou pathologique de la voix. Certaines formes de pathologies pouvant concerner des affections structurelles des cordes vocales (polypes, paralysie, ...) et altérer de façon plus ou moins conséquente la mise en vibration des cordes vocales. Une partie de ces travaux porte ainsi sur l'observation expérimentale de la production de parole pathologique, grâce notamment à la mise au point d'une maquette auto-oscillante de cordes vocales artificielles. Celle-ci reprend la structure de latex remplie d'eau sous pressions des maquettes déjà développées au Gipsa-lab mais permet une plus grande indépendance des paramètres de contrôle. Un accent particulier des manipulations expérimentales est également porté sur la caractérisation mécanique des structures vibrantes, dont la connaissance est indispensable à la reproductibilité et la répétabilité des mesures ultérieures sur la maquette, ainsi qu'à l'analyse des résultats expérimentaux avec couplage aéroacoustique et la validation de modèles numériques associés.D'un côté, un calcul du comportement vibratoire des maquettes basée sur une méthode éléments finis a été mise oeuvre. Le modèle numérique développé utilise ainsi une formulation du couplage hydro-élastique entre le latex et l'eau qui constituent les maquettes et offre la possibilité de prendre en compte les grandes déformations et les pré-contraintes liées au gonflement du latex soumis à une forte pression d'eau. Finalement, un modèle d'écoulement glottique couplé à un modèle mécanique distribué de type "masse-raideur" a été utilisé et étendu pour simuler des comportements pathologiques tels que des asymétries (entre les deux cordes vocales et au sein d'une corde) ou la présence d'une masse ajoutée (kyste, polype). Un procédure d'optimisation de ce modèle sur une configuration expérimentale de référence permet alors de comparer les calculs aux observations des seuils d'oscillation sur les maquettes en présence d'une masse ajoutée
My PhD work has focused on understanding physical phenomena related to speech production in healthy and pathological conditions. Some pathologies affect the structure of the vocal folds which could lead to a more or less substantial alteration of their vibrations. Part of this work is experimental modeling of speech production applied to pathologies, with the development of a self-oscillating vocal fold replica. This replica is made of water-filled latex, such as have already been developed at Gipsa-lab, but it allows a larger independence within its control parameters and it can be used to reproduce pathological conditions. A particular interest is brought to mechanical characterization of these vibrating structures. This characterization is of primary importance when it comes to repeatability and reproducibility of measurements, as for the analysis of experimental results with aeroacoustic coupling and the validation and improvements of corresponding numerical models.Simulations of the vocal fold vibrating behavior based on the finite element method have been developed. The model uses a formulation of the hydro-elastic coupling between the latex and the water which the replica is made of. It also offers the possibility to take into account the large deformations and the prestress within the latex induced by water pressure. Another numerical approach is made using a theoretical laryngeal flow model coupled with a distributed mass-spring model and a set of resonators. Calculations of the dynamical system stability offer the possibility for comparisons with the experimental setup through a finite set of parameters. This model is adapted to simulate pathological conditions such as asymmetries and the presence of growths (cysts, polyps). Finally, an optimization calculation of this model on an experimental reference configuration of the replica allows us to compare the calculations with the measurements on this replica with the presence of a polyp

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Darestani, Mostafa Yousefi. "Response of concrete pavements under moving vehicular loads and environmental effects." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16662/1/Mostafa_Yousefi_Darestani_Thesis.pdf.

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The need for modern transportation systems together with the high demand for sustainable pavements under applied loads have led to a great deal of research on concrete pavements worldwide. Development of finite element techniques enabled researchers to analyse the concrete pavement under a combination of axle group loadings and environmental effects. Consequently, mechanistic approaches for designing of concrete pavements were developed based on results of finite element analyses. However, unpredictable failure modes of concrete pavements associated with expensive maintenance and rehabilitation costs have led to the use of empiricalmechanistic approach in concrete pavement design. Despite progressive knowledge of concrete pavement behaviour under applied loads, concrete pavements still suffer from deterioration due to crack initiation and propagation, indicating the need for further research. Cracks can be related to fatigue of the concrete and/or erosion of materials in sub-layers. Although longitudinal, midedge and corner cracks are the most common damage modes in concrete pavements, Austroads method for concrete pavement design was developed based on traditional mid-edge bottom-up transverse cracking introduced by Packard and Tayabji (1985). Research presented in this thesis aims to address the most common fatigue related distresses in concrete pavements. It uses comprehensive finite element models and analyses to determine the structural behaviour of concrete pavements under vehicular loads and environmental effects. Results of this research are supported by laboratory tests and an experimental field test. Results of this research indicate that the induced tensile stresses within the concrete pavement are significantly affected by vehicle speed, differential temperature gradient and loss of moisture content. Subsequently, the interaction between the above mentioned factors and concrete damage modes are discussed. Typical dynamic amplifications of different axle groups are presented. A new fatigue test setup is also developed to take into consideration effects of pavement curvature on fatigue life of the concrete. Ultimately, results of the research presented in this thesis are employed to develop a new guide for designing concrete pavements with zero maintenance of fatigue damage.

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Darestani, Mostafa Yousefi. "Response of concrete pavements under moving vehicular loads and environmental effects." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16662/.

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GAUR, NIKHIL. "RESPONCE VINDICATION OF EFFECTS OF CORNER CONFIGURATION AND INTERFERENCE ON TALL BUILDINGS UNDER WIND LOADS USING CFD MODELLING." Thesis, 2020. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18365.

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This study explores a recent application of the computational fluid dynamics technique “CFD” for wind analysis and its comparisons with the conventional wind tunnel experimentations. This study is centered on the wind response of square and corner cut-shaped building models and its optimization caused by the variation of the wind incidence angle. Extensive rigid model experiments of two building models of length scale 1:100 have been performed in the boundary layer wind tunnel. The numerical analysis has been carried out with the standard k-ε turbulence model to evaluate the force coefficients, base moments, power spectra, external surface pressure coefficients, and flow field characteristics of the models with variable wind angles of incidence. The comparisons between experimental results and CFD analysis suggest the computational approach’s viability in wind analysis of tall structures efficiently and accurately. A case study of aerodynamic mitigation by corner cut suggests minor modification techniques performance, efficiency, and limitations. Wind induced interference plays a vital role in the design of tall structures. However, the complex features of structure design and shape require a detailed wind tunnel/CFD (Computational Fluid Dynamics) study as codal provisions don’t suffice for such scattered parameters. iv The current study focuses on the effects of height ratio, orientation, and blockage configuration of interfering structure on interference effects. Interference factor (IF), transient pressure, and force spectra are used to account for the interference effects at major probe points to understand the dynamic wind response. To study these effects among complex arrangements, a numerical simulation for a CFD analysis on a corner configured principal building model and a single upstream interfering building model having identical geometry has been performed. The configuration included six kinds of heights ratio (Hr=Hprincipal/Hinterfering). Furthermore, force coefficients, base moments, and external surface pressure coefficients both in the along and across wind direction are determined and listed for wind incidence angle of attack of 0° to 90° at an interval of 15°. Interference effects among full, half, and no blockage conditions were investigated. The data is presented in terms of the interference factor relating wind load responses of the isolated principal building to interference configuration. The results indicate that in close proximity of structure, the shielding effect suppresses the interference effects on the principal building, but across wind responses have been investigated in close vicinity configurations too. This study also suggests the interfering model’s orientation contributes to great measures to the wind response under interference.

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Книги з теми "CORNER CONFIGURATION"

Hamed, A. An investigation of bleed configurations and their effect on shock wave/boundary layer interactions: Final report. [Cincinnati, Ohio?]: University of Cincinnati, 1995.

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United States. National Aeronautics and Space Administration., ed. An investigation of bleed configurations and their effect on shock wave/boundary layer interactions: Final report. [Cincinnati, Ohio?]: University of Cincinnati, 1995.

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Dan-Cohen, Talia. A Simpler Life. Cornell University Press, 2021. http://dx.doi.org/10.7591/cornell/9781501753442.001.0001.

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This book approaches the developing field of synthetic biology by focusing on the experimental and institutional lives of practitioners in two labs at Princeton University. It highlights the distance between hyped technoscience and the more plodding and entrenched aspects of academic research. The book follows practitioners as they wrestle with experiments, attempt to publish research findings, and navigate the ins and outs of academic careers. It foregrounds the practices and rationalities of these pursuits that give both researchers' lives and synthetic life their distinctive contemporary forms. Rather than draw attention to avowed methodology, the book investigates some of the more subtle and tectonic practices that bring knowledge, doubt, and technological intervention into new configurations. In so doing, it sheds light on the more general conditions of contemporary academic technoscience.

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Connolly, Heather, Miguel Martínez Lucio, and Stefania Marino. The Politics of Social Inclusion and Labor Representation. Cornell University Press, 2019. http://dx.doi.org/10.7591/cornell/9781501736575.001.0001.

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The book explores the question of social inclusion and trade union responses to immigration in the European context, comparing the Netherlands, Spain and the United Kingdom. Drawing on in-depth qualitative research the book focuses on how trade unions - particularly more established and institutionalised trade unions - respond to immigrant workers and what they perceive to be the important points of renewal and change that are required for a more integrated and supported immigrant community to emerge. The book also considers the role of European level trade union relations on the question of immigration and how trade unionists have attempted to deal with very different national configurations of trade union action. The book argues that we need to appreciate the complexity of trade union traditions, paths to renewal and competing trajectories of solidarity. While trade union organisations remain wedded to specific trajectories, trade union renewal remains an innovative if at times problematic set of choices and aspirations.

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Wang, Y. Yvon. Reinventing Licentiousness. Cornell University Press, 2021. http://dx.doi.org/10.7591/cornell/9781501752971.001.0001.

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This book navigates an overlooked history of representation during the transition from the Qing Empire to the Chinese Republic — a time when older, hierarchical notions of licentiousness were overlaid by a new, pornographic regime. The book draws on previously untapped archives to argue that pornography in China represents a unique configuration of power and desire that both reflects and shapes historical processes. On the one hand, since the late imperial period, pornography has democratized pleasure in China and opened up new possibilities of imagining desire. On the other, ongoing controversies over its definition and control show how the regulatory ideas of premodern cultural politics and the popular products of early modern cultural markets have contoured the globalized world. The book emphasizes the material factors, particularly at the grassroots level of consumption and trade, that governed “proper” sexual desire and led to ideological shifts around the definition of pornography. By linking the past to the present and beyond, the book's social and intellectual history showcases circulated pornographic material as a motor for cultural change. The result is an astonishing foray into what historicizing pornography can mean for our understandings of desire, legitimacy, capitalism, and culture.

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Pempel, T. J. A Region of Regimes. Cornell University Press, 2021. http://dx.doi.org/10.7591/cornell/9781501758799.001.0001.

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This book traces the relationship between politics and economics — power and prosperity — in the Asia-Pacific in the decades since the Second World War. It complicates familiar and incomplete narratives of the “Asian economic miracle” to show radically different paths leading to high growth for many but abject failure for some. The book analyzes policies and data from ten East Asian countries, categorizing them into three distinct regime types, each historically contingent and the product of specific configurations of domestic institutions, socio-economic resources, and external support. It identifies Japan, Korea, and Taiwan as developmental regimes, showing how each then diverged due to domestic and international forces. North Korea, Myanmar, and the Philippines (under Ferdinand Marcos) comprise “rapacious regimes” in this analysis, while Malaysia, Indonesia, and Thailand form “ersatz developmental regimes.” Uniquely, China emerges as an evolving hybrid of all three regime types. The book concludes by showing how the shifting interactions of these regimes have profoundly shaped the Asia-Pacific region and the globe across the postwar era.

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Galmonte, Alessandra, and Tiziano Agostini. The Reversed Contrast Necker Cube. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780199794607.003.0043.

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Agostini and Galmonte reported a configuration showing that when grouping factors are optimized, a grey target totally surrounded by black appears darker than an equal grey target totally surrounded by white. This is called the simultaneous contrast. The theoretical assumption is that, when higher-level factors act simultaneously with lower-level factors, the former prevails over the latter. Specifically, it is assumed that the lightness induction produced by the global organization principle of perceptual belongingness prevails over retinal lateral inhibition. A reversed contrast Necker cube display with two middle grey dashed cubes is used to illustrate the effect. The first one had dark inducer corners and was placed on a light inducer background, and the second one, which had light inducer corners, was placed on a dark inducer background.lightness induction, grouping, perceptual belongingness, lateral inhibition, organization principles

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Jones, Emily, ed. The Political Economy of Bank Regulation in Developing Countries: Risk and Reputation. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198841999.001.0001.

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Why do governments in some developing countries implement international standards, while others do not? Focusing on the politics of bank regulation, this book develops a new framework to explain regulatory interdependence between countries in the core and the periphery of the global financial system. Drawing on in-depth analysis of eleven countries across Africa, Asia, and Latin America, it shows how financial globalization generates strong reputational and competitive incentives for developing countries to converge on international standards. Regulatory interdependence is generated by relations between regulators, politicians, and banks within developing countries, and international actors including investors, peer regulators, and international financial institutions. We explain why it is that some configurations of domestic politics and forms of integration into global finance generate convergence with international standards, while other configurations lead to divergence. This book contributes to our understanding of the ways in which governments and firms in the core of global finance powerfully shape regulatory politics in the periphery, and the ways in which peripheral governments and firms manoeuvre within the constraints and opportunities created by financial globalization.

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Roditchev, D., T. Cren, C. Brun, and M. V. Milošević. Local-Scale Spectroscopic Studies of Vortex Organization in Mesoscopic Superconductors. Edited by A. V. Narlikar. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780198738169.013.2.

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This article examines the vortex matter of mesoscopic superconductors with numerous vortex states that do not exist in bulk superconductors. Using scanning tunneling microscopy/spectroscopy, it investigates the organization of vortex cores at different levels of confinement. The article begins with a discussion of the basic properties of quantum vortices in superconductors and experimental requirements for studying vortex confinement phenomena. It then considers the effect of sample size and shape on vortex distribution and pinning, along with the resulting ultra-dense configurations that cannot be achieved in bulk superconductors. It also describes the peculiar features of vortices in atomically thin superconductors having mixed Abrikosov–Josephson vortices.

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Arregui, Ana, María Luisa Rivero, and Andrés Salanova. Introduction. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780198718208.003.0001.

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This chapter offers an introduction to the book. Modality is a core research topic for most disciplines interested in language, including linguistics, philosophy, and psychology. By putting forward specific case studies across an extensive range of languages, the chapters in this book allow us to gain insights into features that are common across languages in the construction of modal meanings, as well as into constraints that are language-specific. The broad range of syntactic and morphological configurations under study in this book succeed in giving readers a sense of the extremely rich diversity found in natural language under the “modal umbrella.”

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Частини книг з теми "CORNER CONFIGURATION"

Chpoun, A. "Hypersonic Transitional Flow in a Compression Corner in 2D Configuration." In Laminar-Turbulent Transition, 533–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-84103-3_48.

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Mahajan, Saransh, Vikramaditya Yadav, Rahul Raj, and Ritu Raj. "Effect of Shear Walls on Tall Buildings with Different Corner Configuration Subjected to Wind Loads." In Lecture Notes in Civil Engineering, 723–34. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6557-8_59.

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Goldfeld, M. A. "On the Reverse Transition of Compressible Turbulent Boundary Layer in a Transverse Flow Around a Convex Corner Configuration." In Laminar-Turbulent Transition, 515–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82462-3_63.

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Norberg, Scott. "Setup and Configuration." In Advanced ASP.NET Core 3 Security, 355–71. Berkeley, CA: Apress, 2020. http://dx.doi.org/10.1007/978-1-4842-6014-2_10.

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Reynders, Fanie. "The Configuration Model." In Modern API Design with ASP.NET Core 2, 95–111. Berkeley, CA: Apress, 2018. http://dx.doi.org/10.1007/978-1-4842-3519-5_6.

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Schwichtenberg, Holger. "Desired State Configuration (DSC)." In Windows PowerShell 5.1 und PowerShell Core 6.1, 549–79. München: Carl Hanser Verlag GmbH & Co. KG, 2018. http://dx.doi.org/10.3139/9783446459236.030.

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Schwichtenberg, Holger. "Desired State Configuration (DSC)." In Windows PowerShell 5 und PowerShell Core 6, 515–45. München: Carl Hanser Verlag GmbH & Co. KG, 2017. http://dx.doi.org/10.3139/9783446453975.030.

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Zeng, Tongyan, Essam F. Abo-Serie, Manus Henry, and James Jewkes. "Thermal Optimisation Model for Cooling Channel Design Using the Adjoint Method in 3D Printed Aluminium Die-Casting Tools." In Springer Proceedings in Energy, 333–40. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30960-1_31.

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AbstractIn the present study, the adjoint method is introduced to the optimisation of the corner cooling element in two baseline cooling designs for a mould cavity, as examples of the Aluminium metal die-casting process. First, a steady thermal model simulating the Aluminium die-casting process is introduced for the two-corner cooling design scenario. This steady model serves as the first iteration of the optimised model using the adjoint method. A dual-parameter objective function targets the interfacial temperature standard deviation and pressure drop across the internal cooling region. For both design cases, multi-iterative deformation cycles of the corner cooling configurations result in optimised designs with non-uniform cross-section geometries and smooth surface finishing. Numerical simulations of the resulting designs show improvements in uniform cooling across the mould/cast interfacial contact surface by 66.13% and 92.65%, while the optimised pressure drop increases coolant fluid flow by 25.81% and 20.35% respectively. This technique has been applied to optimise the complex cooling system for an industrial high-pressure aluminium die-casting (HPADC) tool (Zeng et al. in SAE Technical Paper 2022-01-0246, 2022, [1]). Production line experience demonstrates that the optimised designs have three times the operational life compared to conventional mould designs, providing a significant reduction in manufacturing and operation costs.

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Cosmina, Iuliana. "Spring Bean Lifecycle and Configuration." In Pivotal Certified Professional Core Spring 5 Developer Exam, 23–199. Berkeley, CA: Apress, 2019. http://dx.doi.org/10.1007/978-1-4842-5136-2_2.

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Schumann, Jan-Erik, Markus Fertig, Volker Hannemann, Thino Eggers, and Klaus Hannemann. "Numerical Investigation of Space Launch Vehicle Base Flows with Hot Plumes." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 179–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_11.

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Abstract The flow field around generic space launch vehicles with hot exhaust plumes is investigated numerically. Reynolds-Averaged Navier-Stokes (RANS) simulations are thermally coupled to a structure solver to allow determination of heat fluxes into and temperatures in the model structure. The obtained wall temperatures are used to accurately investigate the mechanical and thermal loads using Improved Delayed Detached Eddy Simulations (IDDES) as well as RANS. The investigated configurations feature cases both with cold air and hot hydrogen/ water vapour plumes as well as cold and hot wall temperatures. It is found that the presence of a hot plume increases the size of the recirculation region and changes the pressure distribution on the nozzle structure and thus the loads experienced by the vehicle. The same effect is observed when increasing the wall temperatures. Both RANS and IDDES approaches predict the qualitative changes between the configurations, but the reattachment location predicted by IDDES is up to 7% further upstream than that predicted by RANS. Additionally, the heat flux distribution along the nozzle and base surface is analysed and shows significant discrepancies between RANS and IDDES, especially on the nozzle surface and in the base corner.

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Тези доповідей конференцій з теми "CORNER CONFIGURATION"

Srikanth, Vagata S. I. "Corner cube prism resonator with polarized output: new configuration." In Lasers and Applications in Science and Engineering, edited by Alexis V. Kudryashov and Alan H. Paxton. SPIE, 2005. http://dx.doi.org/10.1117/12.583338.

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Powell, Amy M., and Anil K. Kulkarni. "An Experimental Study of Upward Flame Spread in a Vertical Corner Wall Fire." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0871.

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Abstract This paper presents results of an experimental investigation of upward flame spread on a vertical corner wall. The corner wall flame spread phenomenon differs from that for a plain vertical wall primarily because of the radiative and flow interaction between the walls. An experimental apparatus, capable of being set at corner angles of 60°, 90°, and 135° was designed and constructed. Samples, measuring 1.20 m by 0.30 m, of plywood, particle board, and hardboard were tested. Three burner configurations were used during experimentation — an arrow configuration, a line configuration, and a point source. Flame height as a function of time was measured during each run. Several trends were observed including — the significance of the burner configuration when determining flame shapes; the relationship between radiative interaction and different corner angles; and the capability of each material to sustain flame growth once the burner was turned off. Also, the pyrolysis front was noted at the conclusion of each test run using the charred region apparent on the sample, which revealed the dependence of the shape of pyrolysis front on the burner configuration. The study allows insight into various aspects of corner fire spread and provides data for validating flame spread models.

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Petrie-Repar, Paul J., Andrew McGhee, and Peter A. Jacobs. "Three-Dimensional Viscous Flutter Analysis of Standard Configuration 10." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27800.

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The results of a three-dimensional (3D) viscous flutter analysis for a compressor stage, Standard Configuration 10, are presented. The unsteady flow simulations were performed by a 3D linearized Navier-Stokes flow solver using the Spalart and Allmaras turbulence model. Significant flow blockage due to corner separation at the hub on the suction surface was predicted by the steady-state 3D viscous simulation at a design condition. Corner separation was not predicted by 3D inviscid or two-dimensional (2D) viscous simulations. The corner separation was found to have a destabilizing effect and changed the nature of the unsteady flow. In fact, the 3D viscous simulations predicted negative aerodynamic damping for almost half of the inter-blade phase angles, while the 2D and 3D inviscid simulations predicted stable positive aerodynamic damping for all inter-blade phase angles. An off-design flow condition was also examined and significant differences between the 2D and 3D viscous simulations were found.

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Chaudhari, Dushyant M., and Stanislav I. Stoliarov. "Semi-empirical modeling of flame spread over solid combustibles in a corner configuration." In 12th Asia-Oceania Symposium on Fire Science and Technology (AOSFST 2021). Brisbane, Australia: The University of Queensland, 2021. http://dx.doi.org/10.14264/64557ae.

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Lin, Gang, Karsten Kusterer, Viktor Merkel, and Dieter Bohn. "Heat Transfer Enhancement Using Wedge-Shaped Detached Ribs With Grooves in Internal Cooling Channel." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25863.

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As the state of the art internal cooling configuration the serpentine passage with angled ribs has been developed for many decades and is now widely used in almost all the blade internal cooling applications. To further increase the thermal efficiency of gas turbine, the development of new internal cooling configurations is necessary. In the present study, a new internal cooling configuration, which is characterized by placing modified wedge-shaped detached ribs above the grooves, has been obtained and investigated. Under this new cooling configuration, the main effect for enhancement of heat transfer in standard ribbed channel, the separation and reattachment of the main flow, has been retained. Additional improvements can be found in several areas as follows: (1) flow near rib corner is not stagnant anymore and both corner vortexes near the rib have been eliminated, (2) the increased velocity in groove leads to locally high heat flux. With the same channel dimension, ribs pitch-height ratio, boundary conditions and the Reynolds number based on hydraulic diameter the new cooling configuration shows higher Nusselt number ratio at the ribbed wall by approximately 25–32%. The globally-averaged thermal performance parameter shows a 19–25% better heat performance by this kind of cooling configuration.

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Wang, Huayan, Shuai Shao, Vanlai Pham, Panju Shang, Cheng Zhong, and Seungbae Park. "Quantification of Underfill Influence to Chip Packaging Interactions of WLCSP." In ASME 2018 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipack2018-8257.

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Wafer Level Chip Scale Package (WLCSP) has been a favorable packaging solution for compact portable consumer electronics. The microelectronics industry introduced Extra Low K (ELK) to enhance electric performances with the cost of diminishing mechanical reliability. The ELK itself and its interfaces are highly fragile and susceptible to fracture. ELK cracking under bumps and ELK inter layer delamination (ILD) from die corners are often observed during and after solder reflow and qualification process such as accelerated thermal cycling (ATC). In this study, the underfill selection and its fillet formation influence to the Chip Packaging Interactions (CPI) of WLCSP was investigated through an experimental technique and numerical analysis. For the experimental assessment, thermo-mechanical interactions between die corner and underfill was investigated. Digital image correlation (DIC) technique with optical microscope was utilized to quantify the deformation behavior and strains of cross-sectioned WLCSP die corner subjected to thermal loading from 25°C to 125°C. The results clearly show captured deformations of die corner area under thermal loading. For the fillet formation influence, it shows that the high underfill fillet configuration gives higher normal strain at the die corner area during thermal cycling. For the underfill selection, it clearly shows that the strain difference at corner solder during thermal cycling caused by two different type of underfill material. Finally, finite element analysis (FEA) was conducted by simulating the thermal loading applied in the experiments and validated with experimental results. Then, using the FEA analysis, parametric study for underfill material properties and fillet height were performed on the ELK reliability of WLCSP. Energy release rate of the die corner crack were obtained and used as damage indicators for die corner ELK delamination.

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Zheng, Tan, Xiaoqing Qiang, and Jinfang Teng. "Effects of Vortex-Vortex Interaction in a Compressor Cascade With Vortex Generators." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43042.

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This paper presents a numerical investigation to explore the effects of vortex generators on a high speed compressor cascade. Secondary flow effects like the corner separation vortex have an influence on the performance of a compressor cascade such as leading to increased losses. In order to control the corner separation vortex and reduce losses, an extensive study of vortex generators applied to a compressor cascade is conducted. A preliminary study by steady 3D RANS simulations is performed using the Spalart-Allmaras turbulence model. The aerodynamic performance as well as the behavior of the corner separation vortex is investigated in the compressor cascade without vortex generators. Then, a vortex generator is added to the cascade, which is numerically simulated. Various configurations are considered, which are decided by the height and installation angle of the vortex generator. Comparison of the performance attained by these configurations results in an optimum scheme that has minimum losses. Furthermore, unsteady 3D DES simulations are performed with the optimum configuration. This method that predicts the flow field more precisely could help verify the accuracy of the RANS results. Finally, by analyzing all the resulting aerodynamic performance and numerical flow phenomena, the mechanism of vortex-vortex interaction is presented and discussed, which could be a criterion to reduce the corner separation flow and enhance the performance of axial compressors.

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Wang, Xiaochen, Xiaodong Ren, Xuesong Li, Hong Wu, and Chunwei Gu. "The Endwall Effects of Stators With and Without Simplified Penny Gaps in a High-Loaded Multistage Compressor." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-16314.

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Abstract A simplified configuration of variable stator vanes, which has a uniform hub clearance and a stationary hub surface, is applied to a high-loaded multistage compressor. Comparisons of endwall flow structures are made between the ideal and the simplified configurations. After validating numerical results of the ideal stator configuration with experiment data, the third stator and all stators are modified with the simplified configuration in two separate cases. Flow structures and loss characteristics in the endwall region are investigated numerically in detail at design point. Limited corner separation near the suction side and comparatively strong secondary flow near the pressure side make similar contributions to endwall loss at design point for the baseline configuration, while the shear flow of the blade tip and the endwall boundary layer are regarded as important sources of loss for the modified configuration.

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Liang, Yibo, Longbin Tao, Longfei Xiao, and Mingyue Liu. "Experimental and Numerical Study on Flow Past Four Rectangular Columns in Diamond Configuration." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54609.

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Vortex-Induced-Motions (VIM) is a cyclic rigid body motion that is induced by vortex shedding of a large sized floating structure (Spar, Semi-Submersible and Tension-Leg Platform) in deep water. Since the potential impact of VIM on fatigue life of mooring and riser systems can be critical, the study of the VIM phenomenon has drawn considerable attention among offshore engineering community. Despite the effort, there is still lack of understanding the complex fluid-structure interaction phenomenon. To date, it is very much relying on the simplified empirical approach in practical design. Most of the Semi-Submersibles consist of four rounded-cornered rectangular columns. To investigate the flow interaction between each columns can reveal some physics behind the VIM. In this study, flow past four stationary rounded-corner rectangular columns are tested in the circulating channel and numerically simulated by the Star-CCM+ CFD package. Forces on the columns and the flow characteristics behind the structures are present in this study. A 2-D particle imaging velocimetry (PIV) technic has been adopted in present study to obtain the flow characteristics. The aim of this study is to investigate the interactions between four square columns.

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Siemann, Jan, and Joerg R. Seume. "Design of an Aspirated Compressor Stator by Means of DoE." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-42474.

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This paper presents the design of an aspirated stator of a four-stage high-speed axial compressor. The aspiration of near-wall fluid at the suction side of the first stator is designed numerically by means of DoE (Design of Experiments). The design objective is a reduction or complete suppression of hub corner separation at off-design conditions. As operating point for the CFD-based design process, the last numerically stable operating point near the stall limit of the reference configuration at 80% of the design speed is chosen. As DoE factors the aspiraton velocity, the chordwise position, and the axial by radial dimensions of the aspiration slot are varied. Their effects on the two target values overall isentropic efficiency and total pressure ratio are investigated. All evaluated configurations show significant improvements in stage performance of all compressor stages be-cause of a reduction of hub corner separation. Based on the DoE correlation factors an optimization is performed. The optimum configuration shows an increase in overall isentropic efficiency Δηis of 1.3% to 90.98% whereas the total pressure ratio π is raised by 0.08 to 2.08.

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Звіти організацій з теми "CORNER CONFIGURATION"

Youinou, Gilles J., Ching-Sheng Lin, Abdalla Abou Jaoude, and Casey J. Jesse. Nuclear Thermal Propulsion Scoping Analysis of Fuel Plate Core Configurations. Office of Scientific and Technical Information (OSTI), January 2020. http://dx.doi.org/10.2172/1596107.

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West, C. Optimization of the PS-2 core configuration for the ANS (Advanced Neutron Source) Reactor. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/7258063.

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Harms, Gary. Seven Percent Critical Experiment Core Analysis Approach on Fuel Rods ? Core Configurations T155-NoMo, and T155-397Mo. Office of Scientific and Technical Information (OSTI), August 2022. http://dx.doi.org/10.2172/1881378.

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Gehin, J. C. Neutronic analysis of three-element core configurations for the Advanced Neutron Source Reactor. Office of Scientific and Technical Information (OSTI), August 1995. http://dx.doi.org/10.2172/205866.

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Jimenez, I., A. F. Jankowski, and L. J. Terminello. Core-level photoabsorption study of defects and metastable bonding configurations in boron nitride. Office of Scientific and Technical Information (OSTI), April 1997. http://dx.doi.org/10.2172/603564.

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Grimm, K. N., and D. Meneghetti. Studies of axial-leakage simulations for homogeneous and heterogeneous EBR-II core configurations. Office of Scientific and Technical Information (OSTI), August 1985. http://dx.doi.org/10.2172/5148077.

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Hobbs, R. W., R. M. Stinnett, and T. M. Sims. ORR core re-configuration measurements to increase the fast neutron flux in the Magnetic Fusion Energy (MFE) experiments. Office of Scientific and Technical Information (OSTI), June 1985. http://dx.doi.org/10.2172/5506689.

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Slater, C. O. Two-dimensional DORT discrete ordinates X-Y geometry neutron flux calculations for the Halden Heavy Boiling Water Reactor core configurations. Office of Scientific and Technical Information (OSTI), July 1990. http://dx.doi.org/10.2172/7084830.

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Moschetti, Roberta, Lars Gullbrekken, and Joana Maia. Accelerated climate aging tests of structural insulated panels with waste-based core materials. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541597546.

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One of the challenges of climate change in the building sector is related to the durability of materials, i.e., the resistance to degradation due to weathering over time. The durability of building components can be assessed through long-term natural outdoor climate exposure or appropriate accelerated climate aging in the laboratory. SINTEF Research Centre owns a climate simulator apparatus to perform aging tests according to the Nordtest method NT Build 495:2000. The aim of this article is to show the results from an accelerated climatic aging test performed on three different configurations of a structural insulated panel (SIP), which is characterized by waste-based core materials. The samples were tested for one month, corresponding to about one year of natural outdoor climate exposure. The results from the test performed in the climate simulator include information on the sample changes occurring during the analyzed period, together with the scale of such changes and the time of occurrence. Therefore, the test results are qualitative and based on the fact that a change in the performance properties of the samples corresponds to a change in their appearance during the test. This includes, for instance, signs of degradation, such as cracks, loss of gloss, or delamination.

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Pretari, Alexia, and Filippo Artuso. Resilience in Iraq: Impact Evaluation of the ‘Safe access to resilient livelihoods opportunities for vulnerable conflict-affected women in Kirkuk’ project. Oxfam GB, April 2022. http://dx.doi.org/10.21201/2022.8731.

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Between May 2016 and March 2018, Oxfam in Iraq, together with the Iraqi Al Amal Association (IAA), collaborated on the ‘Safe access to resilient livelihoods opportunities for vulnerable conflict-affected women in Kirkuk’ project. Funded by UN Women, the project marked the first collaboration between Oxfam and IAA (a women’s rights organization working in Kirkuk). The core themes of the project were women’s rights and economic justice. It aimed to reach women who had been displaced, were returnees at the time, or members of the communities to which displaced people had moved (host communities). This Effectiveness Review focuses on investigating the impact of support to income-generating activities on the women who received this support. The evaluation used a mixed methods design. Acknowledging that different women face different barriers and may have therefore benefitted differently from the project, an initial vulnerability assessment was carried out to bring an intersectional lens to the review. Configurational analysis was used to explore the project's impact, alongside different types of qualitative analysis and descriptive statistics. Find out more by reading the full report now.

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