Academic literature on the topic 'Academic [MESH]'
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Journal articles on the topic "Academic [MESH]"
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Park, Young Jae, H. K. Kim, Yoon Suk Chang, Jae Boong Choi, and Young Jin Kim. "Application of Grid-Based Approach for Auto Mesh Generation of Vacuum Chamber." Key Engineering Materials 306-308 (March 2006): 631–36. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.631.
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A seamless analysis of complex geometry is one of greatly interesting topic. However, there are still gaps between the industrial applications and fundamental academic studies owing to time consuming modeling process. To resolve this problem, an auto mesh generation program based on grid-based approach has been developed for IT-product in the present study. At first, base mesh and skin mesh are generated using the information of entities which extracted from IGES file. Secondly the provisional core mesh with rugged boundary geometry is constructed by superimposing the skin mesh as well as the base mesh generated from the CAD model. Finally, the positions of boundary nodes are adjusted to make a qualified mesh by adapting node modification and smoothing techniques. Also, for the sake of verification of mesh quality, the hexahedral auto mesh constructed by the program is compared with the corresponding tetrahedral free mesh and hexahedral mapped mesh through static finite element analyses. Thereby, it is anticipated that the grid-based approach can be used as a promising pre-processor for integrity evaluation of various IT-products.
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Park, Young Jae, Byung Sun Kim, Han Ok Ko, Yoon Suk Chang, Jae Boong Choi, Young Jin Kim, Joon Seong Lee, and C. S. Kim. "Application of Modified Grid-Based Approach for Auto Mesh Generation of IT-Related Products." Key Engineering Materials 321-323 (October 2006): 12–15. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.12.
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A seamless analysis of IT-related products, such as cellular phone, LCD monitor and note PC etc., which are thin and complex geometry is one of great concerns in product design. However, there is a considerable amount of gap between the industrial application and fundamental academic studies due to a time consuming detailed mesh generation. In order to settle the bottleneck, an auto mesh generation program based on a modified grid-based approach is proposed in this paper. At first, base mesh and skin mesh were generated using informations on entities which extracted from an IGES (Initial Graphics Exchange Specification) file. Secondly, a provisional core mesh with a rough boundary geometry was constructed by superimposing the skin mesh into the base mesh generated from CAD model. And then, positions of boundary nodes were redistributed to delineate exact geometry of the provisional mesh. Finally, good qualified meshes were constructed by moving the positions of the nodes and splitting elements along boundary edges. In conclusion, it is anticipated that the developed program can be used as a promising pre-processor for static or dynamic analysis of various IT-related products.
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Condrea, Alexander, Itamar Netzer, Shimon Ginath, Joseph Eldor-Itskovitz, Abraham Golan, and Lior Lowenstein. "Is Mesh Becoming More Popular? Dilemmas in Urogynecology: A National Survey." Obstetrics and Gynecology International 2012 (2012): 1–4. http://dx.doi.org/10.1155/2012/672356.
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The use of vaginal mesh in pelvic organ prolapse (POP) repair surgery has become more common in recent years. The purpose of the current study was to evaluate the common practice of Israeli urogynecologists, and to determine whether surgical practice has changed over the last two years.Methods. In 2009 and again in 2011, a survey was mailed to all urogynecologists affiliated with an academic institute in Israel. The survey consisted of 7 Likert-scale items and 3 open questions; the latter inquired about preferred type of surgery in three clinical scenarios.Results. Of 22 practitioners, 15 responded to the survey. The number of urogynecologists who reported using vaginal mesh for the repair of primary POP increased from 47 to 67% from 2009 to 2011. The number who would not use vaginal mesh in POP repair of elderly patients dropped from 60 to 3%. Finally, for the treatment of a 35-year-old patient with stage III uterine prolapse who desired to preserve fertility, 13% recommended the used vaginal mesh in 2009 compared with 47% in 2011.Conclusion. A survey of practitioners shows that the use of vaginal mesh for the repair of primary and recurrent pelvic organ prolapse has become more common among Israeli urogynecologists.
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Park, Young Jae, Yoon Suk Chang, Jae Boong Choi, and Young Jin Kim. "Study on Large Scale Analysis for Infra-Structure." Solid State Phenomena 110 (March 2006): 169–76. http://dx.doi.org/10.4028/www.scientific.net/ssp.110.169.
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During the last two decades, the interests of large scale seamless analysis have been increased with respect to lifetime extension and management of infra-structure. And then, a seamless analysis of complex geometry is one of greatly interesting topic. However, there are still gaps between the industrial applications and fundamental academic studies owing to time consuming the modeling and analyzing process. To resolve these problems, the integrity evaluation procedure from knowledge-based information system (KIS) to ADVENTRUE has been proposed for the application of auto mesh generation and large scale analysis. The virtual plant which is used for the master of KIS, provides the 3D information of entities for mesh generation. And then, the ADVENTURE makes a domain decomposed mesh and analyzes it using hierarchical domain decomposition method. Considering the good applicability in both efficiency and exactness point of views, it is anticipated that the proposed study on large scale analysis can be used as a promising integrity evaluation method of infra-structures.
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Kao, Katherine, Collin Chen, Jennifer Gross, Samuel Hahn, John Chi, Gregory Branham, and Joseph Zenga. "Titanium Mesh Nasal Repair without Nasal Lining." Facial Plastic Surgery 33, no. 01 (February 2017): 052–57. http://dx.doi.org/10.1055/s-0036-1593747.
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AbstractThe objective of this study was to describe outcomes for patients who underwent titanium mesh reconstruction of full-thickness nasal defects without internal lining repair. This is a retrospective cohort study. Patients with through-and-through nasal defects were identified at a single academic institution between 2008 and 2016. Nasal reconstruction was performed with either titanium mesh and external skin reconstruction without repair of the intranasal lining or traditional three-layer closure. Five patients underwent titanium mesh reconstruction and 11 underwent traditional three-layer repair. Median follow-up was 11 months (range, 2–66 months). The only significant difference between groups was older age in patients undergoing titanium reconstruction (mean, 81 vs. 63 years; difference of 18; 95% confidence interval [CI], 4–32 years). Defect extent including overall size and structures removed was similar between groups (p > 0.05). Paramedian forehead flap was the most common external reconstruction in both groups (100% for titanium mesh and 73% for three-layer closure). Time under anesthesia was significantly shorter for titanium mesh reconstruction (median, 119 vs. 314 minutes; difference of 195; 95% CI, 45–237). Estimated blood loss and length of hospital stay were similar between groups (p > 0.05). Complication rates were substantial although not significantly different, 40 and 36% in titanium and three-layer reconstruction, respectively (p > 0.05). All patients with complications after titanium reconstruction had prior or postoperative radiotherapy. Titanium mesh reconstruction of through-and-through nasal defects can successfully be performed without reconstruction of the intranasal lining, significantly decreasing operative times. This reconstructive technique may not be suitable for patients who undergo radiotherapy.
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Seifollahi Moghadam, Zahra, François Guibault, and André Garon. "On the Evaluation of Mesh Resolution for Large-Eddy Simulation of Internal Flows Using Openfoam." Fluids 6, no. 1 (January 5, 2021): 24. http://dx.doi.org/10.3390/fluids6010024.
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The central aim of this paper is to use OpenFOAM for the assessment of mesh resolution requirements for large-eddy simulation (LES) of flows similar to the ones which occur inside the draft-tube of hydraulic turbines at off-design operating conditions. The importance of this study is related to the fact that hydraulic turbines often need to be operated over an extended range of operating conditions, which makes the investigation of fluctuating stresses crucial. Scale-resolving simulation (SRS) approaches, such as LES and detached-eddy simulation (DES), have received more interests in the recent decade for understanding and mitigating unsteady operational behavior of hydro turbines. This interest is due to their ability to resolve a larger part of turbulent flows. However, verification studies in LES are very challenging, since errors in numerical discretization, but also subgrid-scale (SGS) models, are both influenced by grid resolution. A comprehensive examination of the literature shows that SRS for different operating conditions of hydraulic turbines is still quite limited and that there is no consensus on mesh resolution requirement for SRS studies. Therefore, the goal of this research is to develop a reliable framework for the validation and verification of SRS, especially LES, so that it can be applied for the investigation of flow phenomena inside hydraulic turbine draft-tube and runner at their off-design operating conditions. Two academic test cases are considered in this research, a turbulent channel flow and a case of sudden expansion. The sudden expansion test case resembles the flow inside the draft-tube of hydraulic turbines at part load. In this study, we concentrate on these academic test cases, but it is expected that hydraulic turbine flow simulations will eventually benefit from the results of the current research. The results show that two-point autocorrelation is more sensitive to mesh resolution than energy spectra. In addition, for the case of sudden expansion, the mesh resolution has a tremendous effect on the results, and, so far, we have not capture an asymptotic converging behavior in the results of Root Mean Square (RMS) of velocity fluctuations and two-point autocorrelation. This case, which represents complex flow behavior, needs further mesh resolution studies.
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Et. al., José Miguel Rubio,. "Balanced Academic Curriculum: Looking For An Optimal Solution With Metaheuristics And Functional Programming." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 6 (April 11, 2021): 1181–88. http://dx.doi.org/10.17762/turcomat.v12i6.2435.
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The curriculum design is quite a challenge in the academy, mainly because it requires an adequate distribution of content for the development of the expected professional competencies regarding the available time, the necessary academic load, and their gradual progress in the higher educational institutions. Considering the above, the main objective of this work is to present and exemplify a computational solution to minimize the cost of designing curriculum plans using bio-inspired algorithms to automate and reduce errors in such a process. Specifically, the purpose of this research focuses on solving the Curriculum Mesh Balancing (BACP) problem through metaheuristic optimization based on the behavior or algorithm of fireflies and the use of functional programming in the Haskell lang curricular meshes, rolling of curricular meshes, metaheuristics; firefly algorithm, functional programming in Haskell programming language. The firefly algorithm will be applied to a set of test instances to demonstrate its effectiveness. According to the obtained results, this proposal allows the efficient gathering of solutions to the problem under study.
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Ishihara, Ken, Takehiro Noda, and Hiroyuki Sakurai. "Investigating Applicability of the Meshfree Method to the Structural Analysis of Tires." Tire Science and Technology 40, no. 2 (April 1, 2012): 60–82. http://dx.doi.org/10.2346/1945-5852-40.2.60.
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ABSTRACT In contrast to the finite element method (FEM), which is widely used in the tire industry nowadays, some alternative methods have been proposed by academic communities over the past decade or so. The meshfree method is one of those new methodologies. Originally intended to remove the burden of creating the mesh that is inherent in FEM, the meshfree method relies on the point data rather than the mesh, which makes it much easier to discretize the geometry. In addition to those modeling issues, it has been found that the meshfree method has several advantages over FEM in handling geometrical nonlinearities, continuities, and so forth. In accordance with those emerging possibilities, the authors have been conducting research on the matter. This article describes the results of the authors' preliminary research on the applicability of the meshfree method to tire analyses, which include the theoretical outline, the strategy of tire modeling, numerical results, comparisons with results of FEM, and conclusions.
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Kiss, Gergely Máté, Jan Kaska, Roberto André Henrique De Oliveira, Olena Rubanenko, and Balázs Tóth. "Performance Analysis of FEM Solvers on Practical Electromagnetic Problems." Periodica Polytechnica Electrical Engineering and Computer Science 65, no. 2 (March 25, 2021): 113–22. http://dx.doi.org/10.3311/ppee.17144.
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The paper presents a comparative analysis of different commercial and academic software. The comparison aims to examine how the integrated adaptive grid refinement methodologies can deal with challenging, electromagnetic-field related problems. For this comparison, two bench-mark problems were examined in the paper. The first example is a solution of an L-shape domain like test problem, which has a singularity at a certain point in the geometry. The second problem is an induction heated aluminum rod, which accurate solution needs to solve non-linear, coupled physical fields. The accurate solution of this problem requires applying adaptive mesh generation strategies or applying a very fine mesh in the electromagnetic domain, which can significantly increase the computational complexity. The results show that the fully-hp adaptive meshing strategies, which are integrated into Agros Suite, can significantly reduce the task's computational complexity compared to the automatic h-adaptivity, which is part of the examined, popular commercial solvers.
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Andres, Hayward P., and Obasi H. Akan. "A test of the teaching-learning style mesh hypothesis in a Chinese MBA." Journal of International Education in Business 8, no. 2 (November 2, 2015): 145–63. http://dx.doi.org/10.1108/jieb-12-2014-0021.
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Purpose – The purpose of this paper is to determine if “fit” and “non-fit” between authoritarian versus demonstrator teaching and visual versus verbal learning preferences differ in impact on Chinese MBA student academic performance in a large local urban Chinese university setting. In addition, the role of Chinese cultural behavioral tendencies in dictating specific teaching and learning style preferences among Chinese MBA students is also examined. Design/methodology/approach – Subjects were 135 Chinese MBA students that indicated their learning style preference (verbal or visual) and predominant teaching style encountered (authoritarian or demonstrator). Analysis of variance (ANOVA) main effects were used to identify the best teaching style and best learning style. ANOVA interaction effects were used to test the meshing hypothesis (i.e. teaching-learning style “fit” versus “non-fit” conditions). Findings – The results provided support for the mesh hypothesis – teaching style – learning style fit does matter. In general, authoritarian teaching was superior to demonstrator, and verbal learning was superior to visual. Findings also suggest that the demonstrator teaching style may better handle different learning styles (e.g. both verbal and visual) simultaneously as compared to the classic authoritarian teaching style. Research limitations/implications – The findings support and contribute to the body of knowledge about the mesh hypothesis and provide the foundations for further longitudinal studies evaluating teaching and learning styles learning styles in a multicultural and cross-cultural context. A limitation of the study is that self-report responses were used and the data were collected at one Chinese university. Practical implications – The results suggest that instructors are likely to reach only a selected few students if it is assumed that all students learn in the same way or based on cultural orientation alone. University administrators should be aware of the role of cultural tendencies related to teaching and learning and how cross-cultural communication and multicultural awareness can provide insights into strategies for social and academic integration of foreign students. Originality/value – To date, the meshing hypothesis has received far less theoretical or empirical attention than the general learning style and teaching style hypotheses. This study addresses that gap.
Dissertations / Theses on the topic "Academic [MESH]"
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Wang, Jiande. "Numerical and Experimental Analysis of Spur Gears in Mesh." Curtin University of Technology, Department of Mechanical Engineering, 2003. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=14464.
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The investigation of numerical methods for modelling the mechanism properties ofinvolute spur gears in mesh, over the mesh cycle, forms the major part of this thesis.Gearing is perhaps one of the most critical components in power transmission systemsand the transmission error of gears in mesh is considered to be one of the main causes ofgear noise and vibration. Numerous papers have been published on gear transmissionerror measurement and many investigations have been devoted to gear vibration analysis.There still, however, remains to be developed a general Finite Element Model capable ofpredicting the effect of variations in rigid body gear tooth position, in which the criticalstage is the prediction of gear behaviour with profile modifications (including tip-relief).In this thesis, FEA results have been obtained by using various techniques including: (a)adaptive re-mesh with contacts using quad (2D) and brick (3D) elements and (b) theelement birth and death option. Tooth profile modifications can affect the behaviour ofthe gear meshing including the T.E., ratio of local deformation and load-sharing ratioresults, etc, providing an alternative method for gear design. In the high order end, theelastic strains of the gear-shaft system have also been investigated. The results in thisthesis have shown the potential for using strain-vibration relationships to monitor orcontrol the transmission system.The investigations have also included some analysis with non-metallic gears, anapplication area that is rapidly growing. The results achieved here are at a fundamentalstage, and further research would necessitate applying a coupled field analysis (structuraland thermal).
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Nsoh, Stephen Atambire. "Resource allocation in WiMAX mesh networks." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Mathematics and Computer Science, c2012, 2012. http://hdl.handle.net/10133/3371.
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The IEEE 802.16 standard popularly known as WiMAX is at the forefront of the technological
drive. Achieving high system throughput in these networks is challenging due to
interference which limits concurrent transmissions. In this thesis, we study routing and link
scheduling inWiMAX mesh networks. We present simple joint routing and link scheduling
algorithms that have outperformed most of the existing proposals in our experiments. Our
session based routing and links scheduling produced results approximately 90% of a trivial
lower bound.
We also study the problem of quality of service (QoS) provisioning in WiMAX mesh
networks. QoS has become an attractive area of study driven by the increasing demand
for multimedia content delivered wirelessly. To accommodate the different applications,
the IEEE 802.16 standard defines four classes of service. In this dissertation, we propose a
comprehensive scheme consisting of routing, link scheduling, call admission control (CAC)
and channel assignment that considers all classes of service. Much of the work in the
literature considers each of these problems in isolation. Our routing schemes use a metric
that combines interference and traffic load to compute routes for requests while our link
scheduling ensures that the QoS requirements of admitted requests are strictly met. Results
from our simulation indicate that our routing and link scheduling schemes significantly
improve network performance when the network is congested.ix, 77 leaves : ill. ; 29 cm
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Wright, Diana Beth. "Mesh truncation conditions for finite element/finite difference simulations of electromagnetic wave phenomena in unbounded regions." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/186069.
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A new local method for finite difference/finite element mesh truncation in the frequency domain is investigated. The method is based on the Measured Equation of Invariance (MEI) concept recently proposed by Mei, et al. (1) for the numerical solution of electro-magnetic wave scattering by perfectly conducting targets in unbounded regions. An MEI is a numerically derived discrete, linear equation which relates the field at a given boundary node to the field values at neighboring nodes. For each boundary node, a different MEI is constructed. Given such a condition for each node, a computationally efficient and accurate FD/FE grid truncation can be achieved. Since the derivation of the MEI is not based on any far-field assumptions, unlike most other local methods, the mesh truncation condition can be applied just a few cells away from the scatterer's boundary. The method is extended to treat the case of penetrable scatterers. Three different approaches are considered. The first is based upon a direct application of Huygen's principle. The second relies on equivalent source concepts. The final method proposed employs a distribution of multipoles, referred to as multiple multipoles, to generate the MEI's. The MEI-based mesh truncation conditions are implemented for the first time in a finite element formulation and numerical results are presented for time-harmonic scattering by a variety of two-dimensional targets. The feasibility of constructing an accurate truncation condition for the mesh interior to a homogeneous penetrable scatterer is also examined. In addition to the study conducted for finite difference/finite element mesh truncation in the frequency domain, a time domain truncation scheme based on the principles of linearity and superposition is considered. The method is demonstrated for a guided wave structure.
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Kraft, Steven M. "Characterization of the mechanical behavior of a twill dutch woven wire mesh." Honors in the Major Thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1438.
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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.Bachelors
Engineering and Computer Science
Mechanical Engineering
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Lynn, Barbara Casey. "The Manageable Mesh: A Curriculum Design For Second-Grade ESOL Students." UNF Digital Commons, 1993. http://digitalcommons.unf.edu/etd/160.
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This curriculum project was developed to provide the teacher of a self-contained primary ESOL classroom with a workable integration of the critical elements of bilingual education. The project traces the history of bilingual education in the United States. It reviews some of the important legislation and judicial decisions that form the framework for current bilingual education. It examines some learning and language theories that educators translate into practice in instructing, guiding, and evaluating ESOL students.
This design was developed for use in a self contained ESOL class in Duval County, Florida. Students in the class speak a variety of languages other than English. All are learning English as their second language. Their English proficiency level varies from nonspeaker to fluent. The curriculum is designed to recognize each child's abilities and needs while meeting the second grade objectives set forth by the Duval County School Board and complying with the Duval County Public Schools Limited English Proficient Plan. It is hoped that an examination of an integrated thematic unit will provide a useful model for the primary ESOL teacher.
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Kraft, Steven. "The Characterization of the Effects of Stress Concentrations on the Mechanical Behavior of a Micronic Woven Wire Mesh." Master's thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5655.
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Woven structures are steadily emerging as excellent reinforcing components in dual-phase composite materials subjected to multiaxial loads, thermal shock, and aggressive reactants in the environment. Metallic woven wire mesh materials display good ductility and relatively high specific strength and specific resilience. While use of this class of materials is rapidly expanding, significant gaps in mechanical behavior classification remain. This thesis works to address the mechanics of material knowledge gap that exists for characterizing the behavior of a metallic woven structure, composed of stainless steel wires on the order of 25 microns in diameter, and subjected to various loading conditions and stress risers. Uniaxial and biaxial tensile experiments, employing Digital Image Correlation (DIC) as a strain measurement tool, are conducted on woven wire mesh specimens incised in various material orientations, and with various notch geometries. Experimental results, supported by an ample analytic modeling effort, indicate that an orthotropic elastic constitutive model is reasonably capable of governing the macro-scale elasticity of the subject material. Also, the Stress Concentration Factor (SCF) associated with various notch geometries is documented experimentally and analytically, and it is shown that the degree of stress concentration is dependent on both notch and material orientation. The Finite Element Method (FEM) is employed on the macro-scale to expand the experimental test matrix, and to judge the effects of a homogenization assumption when modeling metallic woven structures. Additionally, plasticity of the stainless steel woven wire mesh is considered through experimental determination of the yield surface, and a thorough analytic modeling effort resulting in a modified form of the Hill yield criterion. Finally, meso-scale plasticity of the woven structure is considered, and the form of a multi-scale failure criterion is proposed and exercised numerically.M.S.M.E.
Masters
Mechanical and Aerospace Engineering
Engineering and Computer Science
Mechanical Engineering; Mechanical Systems
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De, Bruyn Daniel Nicholas. "Investigation and development of a system for secure synchronisation in a wireless mesh network." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2010. http://hdl.handle.net/11462/132.
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Thesis (M. Tech.(Electrical Engineering)) -- Central University of technology, Free State, 2010This dissertation gives an overview of the research done in developing a protocol to synchronise information in a secure wireless mesh network. Alternative methods to control wireless devices were investigated in the non-controlled frequency spectrum. The aim of the research was to develop a protocol that can be loaded on a micro-controller with limited intelligence, controlling endpoints. The protocol minimises human interference and automatically negotiates which device becomes the master controller. The device is able to discover and locate neighbour devices in range. The device has the capability to be stationary or mobile and host multiple control endpoints. Control endpoints can be digital or analogue, input or output, and belongs to a group like security, lighting or irrigation. These capabilities can change according to the solution’s requirements. Control endpoints with the same capabilities must be able to establish a connection between each other. An endpoint has a user-friendly name and can update the remote endpoint with the description. When a connection is established both endpoints update each other with their user-friendly name and their status. A local endpoint can trigger a certain action on a receiving control point. The system was tested with a building monitoring system because it is static and a less expensive choice, thus making the evaluation more suitable. A simulator for a personal computer was developed to evaluate the new protocol. Finally, the protocol was implemented and tested on a micro-controller platform.
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Bilskie, Matthew. "Influence of Topographic Elevation Error On Modeled Storm Surge." Master's thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5130.
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The following presents a method for determining topographic elevation error for overland unstructured finite element meshes derived from bare earth LiDAR for use in a shallow water equations model. This thesis investigates the development of an optimal interpolation method to produce minimal error for a given element size. In hydrodynamic studies, it is vital to represent the floodplain as accurately as possible since terrain is a critical factor that influences water flow. An essential step in the development of a coastal inundation model is processing and resampling dense bare earth LiDAR to a DEM and ultimately to the mesh nodes; however, it is crucial that the correct DEM grid size and interpolation method be employed for an accurate representation of the terrain. The following research serves two purposes: 1) to assess the resolution and interpolation scheme of bare earth LiDAR data points in terms of its ability to describe the bare earth topography and its subsequent performance during relevant tide and storm surge simulations.M.S.
Masters
Civil, Environmental, and Construction Engineering
Engineering and Computer Science
Civil Engineering; Water Resources Engineering
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Berth, Ilona, and University of Lethbridge Faculty of Management. "Efficacy beliefs and team effectiveness : a meso approach / Ilona Berth." Thesis, Lethbridge, Alta. : University of Lethbridge, Management, 2010, 2010. http://hdl.handle.net/10133/2597.
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Following a meso-contingency approach (Rousseau & House, 1994), this study examined the relationship between efficacy beliefs and effectiveness outcomes in a team context. Specifically, the interaction effects of self-efficacy and group efficacy as well as their direct effects on effectiveness outcomes at the individual level and at the group level were examined. Forty-two work teams (174 members and 42 supervisors) from several industries within Western Canada completed a survey assessing their efficacy beliefs, their attitudes at work, and their performance. The cross-level hypotheses revealed that self-efficacy positively related to individual effectiveness and to team attitudes but not to team performance. Group efficacy positively correlated with team effectiveness but not with individual effectiveness. Moreover, group efficacy as a shared belief and as a perception of individual team members was hypothesized to moderate the relationship between self-efficacy and team members’ effectiveness. However, these moderation hypotheses were not supported.ix, 105 leaves ; 29 cm
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Nascimento, Ridnal João do. "O processo de escolha de candidatos a programas de Pós-Graduação: uma análise a partir da perspectiva do orientador." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-06052016-094657/.
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O presente estudo tem por objetivo geral identificar os critérios utilizados na tomada de decisão do orientador em aceitar ou não um candidato a orientando e analisar as possíveis relações dessa decisão com a sua produção acadêmica e a evasão de seus orientados. Para o cumprimento desses objetivos buscou-se identificar e analisar os critérios de seleção de candidatos para os programas de mestrado e de doutorado em um Programa de Pós-Graduação, no caso do Instituto de Pesquisas Energéticas e Nucleares - IPEN, e mais especificamente, procurou-se estudar semelhanças e diferenças desses critérios entre os orientadores; verificar se existe correlação entre os critérios de seleção e as características (perfil) do orientador; identificar o processo de seleção utilizado pelos orientadores e apontar quais as possíveis motivações que levam à evasão segundo a visão desses orientadores. Para responder a tais desafios, como ponto de partida da pesquisa, foi elaborado um modelo conceitual da pesquisa, que serviu de base para a elaboração do roteiro de entrevistas com questões abertas para a identificação dos critérios de seleção utilizados por um grupo pequeno e com um perfil pré-definido de orientadores. Na sequência, a partir das respostas obtidas nas entrevistas, a pesquisa foi ampliada para todos os orientadores do programa de pós-graduação do IPEN mediante a aplicação de uma pesquisa online por meio do aplicativo Google Docs para coleta de dados. Em seguida, esses dados foram analisados e reorganizados segundo um modelo operacional de pesquisa que orientaria a análise através da Modelagem de Equações Estruturais (MEE) com o uso do software SmartPLS, cujo objetivo é identificar a existência ou não de correlação entre os critérios adotados pelos orientadores e sua produção acadêmica e a Evasão dos orientados, para isso nos apoiamos em nossos estudos em: Bazerman e Moore (2010); Hair Jr. et al (2009); Hansmann e Ringle (2004); Martins (1997); Ringle, C.; Silva e Bido (2014); Sousa (2007); Sousa e Yu (2014); Torres (2014); Yu (2011). A metodologia da pesquisa acima descrita pode ser definida como um estudo exploratório que combina aspectos qualitativos e quantitativos. Como conclusão da pesquisa, constatou-se que existem critérios tanto subjetivos como objetivos de escolha dos orientadores, que estão associados à produção acadêmica, esses se apresentam com média intensidade, e que os orientadores que valorizam mais os critérios subjetivos na seleção dos orientandos estão associados a uma maior produção acadêmica do que aqueles que valorizam mais os critérios objetivos. Dentre os critérios subjetivos, destacou-se o critério da disponibilidade enquanto dentre os critérios objetivos destacou-se a experiência. Com relação à evasão não foi possível neste estudo associar os critérios de seleção a esta variável dependente. Os resultados aqui apresentados sugerem que os critérios de escolha por um orientador de Pós-Graduação podem estar associados à produção acadêmica desse orientador. Por outro lado, vale destacar que esses resultados se encontram limitados ao de um Programa de Pós-Graduação.This study aims to identify the criteria used by advisors in the decision-making on whether to accept a candidate for mentoring in a postgraduate stricto sensu program and examines possible relationships between this decision and their scientific production and mentees evasion. In order to meet these goals one seeks to identify and analyze the selection criteria of candidates for the master\'s and doctorate programs at an institution; in this case, the Energy and Nuclear Research Institute - IPEN. More specifically, one seeks to study similarities and differences between those criteria among the advisors; find out whether there is a correlation between the selection criteria and the advisors characteristics (Profile); identify the selection process used by advisors and point out which are the motivations that lead to evasion according to their point of view. To meet these challenges, as the starting point of the research, a conceptual model was designed in order to form the basis for the preparation of the script for the interviews with open-ended questions as to identify the selection criteria used by a small group of advisors with a predefined profile. From that point, based on the responses obtained in interviews, the survey was expanded to all advisors working in the IPEN Postgraduate program by implementing an online survey using Google Docs app for data collection. These data were then analyzed and reorganized according to an operational model of research that would guide the analysis by structural equation modeling (SEM) by means of the SmartPLS software, in order to identify the presence or absence of correlation between the criteria adopted by the advisors and their academic production and the evasion of their mentees, for that one relied on studies in: Bazerman and Moore (2010); Cohen (1988); Hair Jr. et al (2009); Hansmann and Ringle (2004); Martins (1997); Ringle, C.; Silva and Bido (2014); Sousa (2007); Sousa and Yu (2014); Torres (2014); Yu (2011). The methodology of the research described above can be defined as an exploratory study that combines qualitative and quantitative aspects. As a conclusion of the research, it was found that there are both subjective and objective selection criteria that are linked to academic production and they come up with medium intensity and that advisors who value the subjective criteria in the selection of mentees are associated with a greater academic production than those who value objective criteria. Among the subjective criteria, one highlights the criterion of availability, while among the objective criteria experience stood out. Regarding the evasion, it was not possible, in this study, to connect the selection criteria to this dependent variable. The results presented here suggest that the selection criteria used by a postgraduate advisor may be associated with his academic production. On the other hand, it is worth noting that these results are limited to a single postgraduate program.
Books on the topic "Academic [MESH]"
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The Postgraduate Research Handbook (Palgrave Study Guides). Palgrave Macmillan, 2001.
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(Illustrator), Teresa Murfin, ed. Magic Mess! (Airy Fairy Books). Barron''s Educational Series, 2005.
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Grover, Sonja C. Human Dignity as the Foundation for the Democratic Rule of Law. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190923846.003.0011.
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The notion of human dignity has in recent years come under attack from sectors of the interdisciplinary and legal academic community as vacuous and of little or no utility in judicial reasoning. This author holds instead that human dignity is the sine qua non of all human life and correlated with certain inviolable human rights that speak to human beings as other than property, as having legal personality and the right to be heard. The notion of human dignity then serves, it is argued here, as essential guidance in judicial reasoning on issues of individual and group fundamental human rights. Neglect in honouring the principle of respect for human dignity in judicial decision-making serves to erode the democratic rule of law and the interests of justice as will be illustrated through examination in particular of the U.S. Supreme Court case of J.C. Hernandez et al v. J. Mesa Jr.
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Pereira, Paulo, Jorge Mataix-Solera, Xavier Úbeda, Guillermo Rein, and Artemi Cerdà, eds. Fire Effects on Soil Properties. CSIRO Publishing, 2019. http://dx.doi.org/10.1071/9781486308149.
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Wildland fires are occurring more frequently and affecting more of Earth's surface than ever before. These fires affect the properties of soils and the processes by which they form, but the nature of these impacts has not been well understood. Given that healthy soil is necessary to sustain biodiversity, ecosystems and agriculture, the impact of fire on soil is a vital field of research.
Fire Effects on Soil Properties brings together current research on the effects of fire on the physical, biological and chemical properties of soil. Written by over 60 international experts in the field, it includes examples from fire-prone areas across the world, dealing with ash, meso and macrofauna, smouldering fires, recurrent fires and management of fire-affected soils. It also describes current best practice methodologies for research and monitoring of fire effects and new methodologies for future research. This is the first time information on this topic has been presented in a single volume and the book will be an important reference for students, practitioners, managers and academics interested in the effects of fire on ecosystems, including soil scientists, geologists, forestry researchers and environmentalists.
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Ball, Warwick. Archaeological Gazetteer of Afghanistan. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780199277582.001.0001.
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Since its publication in 1982, the Archaeological Gazetteer of Afghanistan has become the main reference work for the archaeology of Afghanistan, and the standard sites and monuments record for the region; archaeological sites are now referred to under their Gazetteer catalogue number as routine in academic literature, and the volume has become a key text for developing research in the area. This revised and updated edition has been significantly expanded to incorporate new field-work and discoveries, as well as older field-work more recently published, and presents new cases of synthesis and unpublished material from private archives. New discoveries include the Rabatak inscription detailing the genealogy of the Kushan kings, a huge archive of Bactrian documents, Aramaic documents from Balkh on the last days of the Persian empire, a new Greek inscription from Kandahar, two tons of coins from Mir Zakah, a Sasanian relief of Shapur at Rag-i Bibi, a Buddhist monastic 'city' at Kharwar, new discoveries of Buddhist art at Mes Aynak and Tepe Narenj, and a newly revealed city at the Minaret of Jam. With over 1500 catalogue entries, supplemented with concordance material, site plans, drawings, and detailed maps prepared from satellite imagery, the Archaeological Gazetteer of Afghanistan: Revised Edition is the most comprehensive reference work on the archaeology and monuments of the region ever undertaken. Cataloguing all recorded sites and monuments from the earliest times to the Timurid period, this volume will be an invaluable contribution to the renewed interest in Afghanistan's cultural heritage and an essential resource for students and researchers.
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Guerrero Sierra, Hugo Fernando, Ana Milena Molina, Alexander Rojas, and Douglas Eduardo Molina Orjuela, eds. Gobernanza ambiental: Políticas públicas, sociedad civil y territorio. Universidad Militar Nueva Granada, 2021. http://dx.doi.org/10.18359/9789585103153.
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Hoy en día las problemáticas socio-ambientales han tomado un papel relevante, principalmente, al colocar en la mesa la crisis civilizatoria que ha afectado y cuestionado directamente el modelo económico, social, político y cultural implantado por nuestra civilización. Lo anterior, ha conllevado a que diferentes planes, proyectos y políticas para el cuidado y protección del ambiente y los ecosistemas empiecen a tomar lugar dentro de las agendas gubernamentales internacionales y nacionales, enfocándose especialmente en las realidades y particulares territoriales de las comunidades. En este contexto, el concepto de gobernanza ambiental nace como un referente a la gestión de los recursos naturales que desde un ejercicio político de diferentes actores plantea una discusión sobre como insertar en la agenda pública mecanismos de gobernanza en los programas y acciones a desarrollar desde lo local. Es decir, pensar globalmente pero actuar localmente. En este escenario, el espectro de factores para su abordaje es extenso; por ende, su aplicación puede ser en lo económico, político, cultural, social y ambiental. Dentro de la multiplicidad de enfoques de la gobernanza, este libro se enfoca en el factor ambiental, al considerar que existe un reclamo insistente de las personas que se preocupan por garantizar la sostenibilidad de los recursos naturales en el futuro, puesto que cada vez son más conscientes de la necesidad de generar acciones colectivas para atender a las crecientes y demandantes necesidades de la población mundial. Por consiguiente, el libro Gobernanza Ambiental: Políticas Públicas, Sociedad Civil y Territorio corresponde a todos aquellos lectores que quieran aproximarse desde una perspectiva analítica y reflexiva a los textos que aquí se ofrecen. Invitamos a todos nuestros colegas a hacer un recorrido en un orden secuencial o acudiendo a una ruta autónoma que les permita transitar acorde a sus expectativas. Las investigaciones, reflexiones, hipótesis, metodologías y conclusiones que aquí proponen cada uno de los autores buscan construir nuevos espacios de debate que permitan, desde la interacción con el conjunto de la comunidad académica, generar marcos de análisis multidimensionales que aporten elementos permitentes de análisis más allá de los simplemente conceptuales.
Book chapters on the topic "Academic [MESH]"
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Li, Jinghai, Wei Ge, Wei Wang, Ning Yang, Xinhua Liu, Limin Wang, Xianfeng He, Xiaowei Wang, Junwu Wang, and Mooson Kwauk. "Academic Applications of EMMS Drag." In From Multiscale Modeling to Meso-Science, 359–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35189-1_9.
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Thuné, Michael, and Stefan Söderberg. "Optimal Parameter Values for a Parallel Structured Adaptive Mesh Refinement Algorithm." In Applied Parallel Computing. New Paradigms for HPC in Industry and Academia, 177–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-70734-4_22.
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Wang, Kai, Guillaume Lavoué, Florence Denis, and Atilla Baskurt. "Blind Watermarking of Three-Dimensional Meshes." In Digital Rights Management, 1559–85. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2136-7.ch079.
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Digital watermarking of three-dimensional (3-D) meshes has numerous potential applications and has received more and more attention from both academic researchers and industrial practitioners. This chapter focuses on the study of blind mesh watermarking techniques, which do not need the original cover mesh for watermark extraction and thus have a much larger application range than the non-blind techniques. The authors first review the existing methods proposed so far, by classifying them into three groups: fragile schemes, high-capacity schemes and robust schemes. They then present their recent work on quantization-based blind watermarking of semi-regular meshes. Finally, some future working directions are suggested.
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Wang, Kai, Guillaume Lavoué, Florence Denis, and Atilla Baskurt. "Blind Watermarking of Three-Dimensional Meshes." In Advanced Techniques in Multimedia Watermarking, 200–227. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-61520-903-3.ch009.
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Digital watermarking of three-dimensional (3-D) meshes has numerous potential applications and has received more and more attention from both academic researchers and industrial practitioners. This chapter focuses on the study of blind mesh watermarking techniques, which do not need the original cover mesh for watermark extraction and thus have a much larger application range than the non-blind techniques. The authors first review the existing methods proposed so far, by classifying them into three groups: fragile schemes, high-capacity schemes and robust schemes. They then present their recent work on quantization-based blind watermarking of semi-regular meshes. Finally, some future working directions are suggested.
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McKeown, Laurence. "From D102 to Paulo Freire: an Irish journey." In Degrees of Freedom, 179–90. Policy Press, 2019. http://dx.doi.org/10.1332/policypress/9781447353065.003.0019.
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Surviving the H-Block prisons and hunger strikes of the 1970s and 1980s in northern Ireland, Laurence McKeown connects his political struggles as an Irish republican to his learning journey with The Open University. The politics of struggle mesh with the politics of learning as Republican autonomy and resistance to British attempts to criminalise their struggle collide with The Open University’s demands for academic assessment. McKeown’s intriguing account of exceptionally challenging circumstances is extraordinary testament to The Open University’s innovative courage, the determination of a brilliant student and the power of a good mentor.
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Hai-Jew, Shalin. "Full-Surround “Instructional Design” Support for Quality E-Learning." In Cases on Building Quality Distance Delivery Programs, 91–108. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-111-9.ch007.
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Supporting quality e-learning in an institution of higher education is a non-trivial task. This challenge stems from the complexity of online learning with a mesh of laws (such as intellectual property and accessibility ones) and policies that undergird the foundational level of quality. There are the ever-evolving technological challenges—of technological learning platforms, digital learning objects, authoring tools, multimedia, the Internet, and the Web. In an academic environment which emphasizes academic freedom, there are few levers to motivate quality—except through faculty-imposed standards, funding mechanisms, quality endorsements, or other incentives. The variance in learning domains may make a shared concept of quality more elusive and likewise variant. Professional subject matter experts and faculty members have different preferences and standards as well, and their choices of teaching methods will vary. Learner expectations affect the concept and perception of quality. The normal constraints of resources, budget, time, knowledge, and skills, also apply as potential challenges to a friction-free development of quality e-learning. This chapter uses the instructional design framework to reflect on practical ways to support quality e-learning.
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Morgan, Pamela. "The Availability of MeSH in Vendor-Supplied Cataloguing Records, as Seen Through the Catalogue of a Canadian Academic Health Library." In Cataloging and Indexing, 56–80. Apple Academic Press, 2011. http://dx.doi.org/10.1201/b13123-5.
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Fishman, Jay A. "Matrix mentorship in academic medicine: Sustainability of competitive advantage." In Biennial Review of Health Care Management: Meso Perspective, 155–70. Emerald Group Publishing Limited, 2009. http://dx.doi.org/10.1108/s1474-8231(2009)0000008010.
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Shami, Seteney, and Cynthia Miller-Idriss. "Introduction: The Many Crises of Middle East Studies." In Middle East Studies for the New Milleniu. NYU Press, 2016. http://dx.doi.org/10.18574/nyu/9781479827787.003.0001.
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This introductory chapter sets out the book's purpose, which is to draw a portrait of the issues animating and challenging the field of Middle East studies (MES) in their academic and national contexts. The book presents some of the findings of a decade-long (2000–2010) research project organized by the Social Science Research Council in New York, which began with examining Middle East studies and expanded to investigate other area studies fields as well as the thrust toward the global in US universities. It is concerned with three main themes: the relationship between MES and various disciplines (political science, sociology, economics, and geography), current reformulations and new emphases in MES (in terms of university restructuring, language training, and scholarly trends), the politics of knowledge, and the impact on the field of MES of the many crises in the region.
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Shami, Seteney, and Marcial Godoy-Anativia. "Area Studies and the Decade after 9/11." In Middle East Studies for the New Milleniu. NYU Press, 2016. http://dx.doi.org/10.18574/nyu/9781479827787.003.0010.
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This chapter examines the complex intersection of intellectual, institutional, and political processes that have, after the events of 9/11, cumulatively contributed to the current state of area studies in American universities. At the broadest level, the polemics surrounding Middle East studies (MES) call into question the “utility” of the social sciences and the humanities and the role of the university in society. Examination of changes in daily practices on campuses, institutional architectures, and intellectual trends in MES, as perceived and articulated in interviews with faculty, students, and administrators shows mixed results, both negative and positive: criticism concerning the “irrelevance” of MES is accompanied by increased public demand for academic information and outreach activities; attempts to establish mechanisms for outside intervention in university centers of MES is accompanied by increased interest by university administrators in the importance of the field; dismissal by some politicians of the ability of universities to teach Arabic to fulfill national needs is accompanied by skyrocketing demand from students for language classes.
Conference papers on the topic "Academic [MESH]"
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Fu, Fangfa, Jianxin Ma, Zixu Wu, and Jinxiang Wang. "Low-cost router microarchitecture based on dimension-switch for fault-tolerance in 2D-Mesh NoC." In 2011 Academic International Symposium on Optoelectronics and Microelectronics Technology (AISOMT). IEEE, 2011. http://dx.doi.org/10.1109/aismot.2011.6159381.
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Wuillaume, Pierre-Yves, Pierre Ferrant, Aurélien Babarit, and Mattias Lynch. "Development of a Panel Cutting Method Coupled With an Unsteady Potential Flow Model Based on the Weak-Scatterer Approximation." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96296.
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Abstract This paper presents a new mesh strategy for unsteady potential flow based solvers. It is based on the coupling between a panel cutting method used for the body mesh and an advance front method to generate the free surface mesh. The goal is to deal with complex geometries for time-domain simulations for marine operations. Firstly, the new mesh generation process is presented in details. Then, two validation tests are presented, using an academic geometry (vertical surface-piercing cylinder) and a complex geometry (FPSO).
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Dobritsa, D. B., B. Yu Yashchenko, S. V. Pashkov, and Yu F. Khristenko. "About evaluating the durability of corrugated mesh screens for meteoroid protection." In XLIV ACADEMIC SPACE CONFERENCE: dedicated to the memory of academician S.P. Korolev and other outstanding Russian scientists – Pioneers of space exploration. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0037002.
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Dobritsa, D. B., S. V. Pashkov, and Iu F. Khristenko. "Protective properties of pleated wire mesh shields for spacecraft protection against meteoroids and space debris." In XLIV ACADEMIC SPACE CONFERENCE: dedicated to the memory of academician S.P. Korolev and other outstanding Russian scientists – Pioneers of space exploration. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0037000.
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Rezchikova, Aleksandra, Cédric Mehl, Scott Drennan, and Olivier Colin. "Large Eddy Simulation of a Turbulent Spray Burner Using Thickened Flame Model and Adaptive Mesh Refinement." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-16243.
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Abstract The accurate simulation of two-phase flow combustion is crucial for the design of aeronautical combustion chambers. In order to gain insight into complex interactions between a flame, a flow, and a liquid phase, the present work addresses the combustion modeling for the Large Eddy Simulation (LES) of a turbulent spray jet flame. The Eulerian-Lagrangian framework is selected to represent the gaseous and liquid phases, respectively. Chemical processes are described by a reduced mechanism, and turbulent combustion is modeled by the Thickened Flame Model (TFM) coupled to the Adaptive Mesh Refinement (AMR). The TFM-AMR extension on the dispersed phase is successfully validated on a laminar spray flame configuration. Then, the modeling approach is evaluated on the academic turbulent spray burner, providing a good agreement with the experimental data.
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Strofylas, Giorgos A., Georgios I. Mazanakis, Sotirios S. Sarakinos, Georgios N. Lygidakis, and Ioannis K. Nikolos. "On the Use of Improved Radial Basis Functions Methods in Fluid-Structure Interaction Simulations." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66412.
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The development of an efficient partitioned FSI coupling scheme is reported in this paper, aimed to facilitate interaction between an open-source CSD software package and an in-house academic CFD code. The coupling procedure is based on Radial Basis Functions (RBFs) interpolation for both information transfer and mesh deformation, entailing no dependence on connectivities, and hence making it applicable to different type or even intersecting grids. However, the method calls for increased computational resources in its initial formulation; to alleviate this deficiency, appropriate acceleration techniques have been incorporated, namely the Partition of Unity (PoU) approach and a surface-point reduction scheme. The PoU approach was adopted in case of data transfer, localizing the interpolation process and therefore reducing the size of the coupling matrix. An alternative approach was applied to improve the efficiency of the mesh deformation procedure, based on the agglomeration of the flow/structure interface nodes used for the RBFs interpolation method. For the demonstration of the proposed scheme a static aeroelastic simulation of a real bridge model, during its construction phase, was performed. The extracted results exhibit its potential to encounter effectively such complicated test cases, in a computationally efficient way.
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Schwerdt, Lukas, Lars Panning-von Scheidt, and Jörg Wallaschek. "A Model Reduction Method for Bladed Disks With Large Geometric Mistuning Using a Partially Reduced Intermediate System Model." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14199.
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Abstract Reduced order models (ROMs) are widely used to enable efficient simulation of mistuned bladed disks. ROMs based on projecting the system dynamics into a subspace spanned by the modes of the tuned structure work well for small amounts of mistuning. When presented with large mistuning, including changes of geometry and number of finite element mesh nodes, advanced methods such as the the pristine-rogue-interface modal expansion (PRIME) are necessary. PRIME builds a reduced model from two full cyclic symmetric analyses, one for the nominal and one for the modified type of sector. In this paper a new reduced order model suitable for large mistuning with arbitrary mesh modifications is presented. It achieves higher accuracy than PRIME, while saving approximately 25% computational effort during the reduction process, when using the same number of cyclic modes. The new method gains its efficiency by recognizing that large modifications from damage or repair are unlikely to be exactly the same for multiple blades. It works by building a partially reduced intermediate model: All nominal sectors are reduced using cyclic modes of the tuned structure. The single modified sector is kept as the full model. For this reason, the new reduction method is called Partially Reduced Intermediate System Model (PRISM) method. The accuracy of the PRISM method is demonstrated on an axial compressor blisk and an academic blisk geometry.
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le Touzé, David, Daniel A. Barcarolo, Matthieu Kerhuel, Guillaume Oger, Nicolas Grenier, Nathan Quinlan, Libor Lobovsky, et al. "Smoothed Particle Hydrodynamics: Benchmarking on Selected Test Cases Within the NextMuSE Initiative." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10811.
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In this paper are presented comparisons of SPH variants on academic test cases classically used to validate numerical fluid dynamics software. These comparisons are extracted from NextMuSE FP7 project activities which will be published more extensively in the near future. One of the goals of this project was to better understand the SPH method and to leave the path to its establishment within CFD methods. An important work load was thus dedicated to benchmark SPH variants on selected test cases. A number of results and conclusions of this comparative study are presented in this paper. The studied variants are: standard weekly-compressible SPH, δ-SPH, Riemann-SPH, incompressible SPH, and FVPM. The majority of the test cases also present a reference solution, either experimental or computed using a mesh-based solver. Test cases include: wave propagation, flow past a cylinder, jet impact, floating body, bubble rise, dam break on obstacle, floating body dynamics, etc. Conclusions may help SPH practitioners to choose one variant or another and shall give detailed understanding necessary to derive further improvements of the method.
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Buonamici, Francesco, and Monica Carfagni. "Reverse Engineering of Mechanical Parts: A Brief Overview of Existing Approaches and Possible New Strategies." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59242.
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Reverse Engineering (RE), also known as “CAD reconstruction”, aims at the reconstruction of 3D geometric models of objects/mechanical parts, starting from 3D measured data (points/mesh). In recent years, considerable developments in RE were achieved thanks to both academic and industrial research (e.g. RE software packages). The aim of this work is to provide an overview of state of the art techniques and approaches presented in recent years (considering at the same time tools and methods provided by commercial CAD software and RE systems). In particular, this article focuses on the “constrained fitting” approach, which considers geometrical constraints between the generated surfaces, improving the reconstruction result. On the basis of the overview, possible theoretical principles are drafted with the aim of suggest new strategies to make the CAD reconstruction process more effective in order to obtain more ready/usable CAD models. Finally, a new RE framework is briefly outlined: the proposed approach hypothesizes a tool built within the environment of an existing CAD system and considers the fitting of a custom-built archetypal model, defined with all the a-priori known dimensions and constraints, to the scanned data.
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Carton de Wiart, Corentin, Koen Hillewaert, Etienne Lorriaux, and Guillaume Verheylewegen. "Development of a Discontinuous Galerkin Solver for High Quality Wall-Resolved/Modelled DNS and LES of Practical Turbomachinery Flows on Fully Unstructured Meshes." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43428.
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The development of a high-order CFD solver for LES of turbomachinery is discussed. It is integrated in a flexible multiphysics platform Argo based on the discontinuous Galerkin Method. The DGM bridges the gap between the flexibility of the industrial solvers and the accuracy of the academic methods, as it is able to reach high order of accuracy on fully unstructured and hybrid meshes. Due to its inherent data locality, it also features high serial and parallel efficiency. The method provides a natural framework for adaptation of mesh size and interpolation order, which can be used later to further reduce computational cost and at the same time increase reliability of industrial DNS and LES. The paper mainly focuses on the physical modelling aspects and their interaction with the discretisation. In particular implicit LES and wall modelling is discussed. The approaches are tested on the wall-resolved and modelled LES of the turbulent channel flow. Finally the approach is applied to resolved LES of the near-transonic transitional flows in a low-pressure turbine cascade at Re = 9.4 × 104 and a compressor cascade at Re = 6.0 × 105. Either cases feature the full span and include end wall effects.
Reports on the topic "Academic [MESH]"
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Acred, Aleksander, Milena Devineni, and Lindsey Blake. Opioid Free Anesthesia to Prevent Post Operative Nausea/Vomiting. University of Tennessee Health Science Center, July 2021. http://dx.doi.org/10.21007/con.dnp.2021.0006.
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Purpose The purpose of this study is to compare the incidence of post-operative nausea and vomiting (PONV) in opioid-utilizing and opioid-free general anesthesia. Background PONV is an extremely common, potentially dangerous side effect of general anesthesia. PONV is caused by a collection of anesthetic and surgical interventions. Current practice to prevent PONV is to use 1-2 antiemetics during surgery, identify high risk patients and utilize tracheal intubation over laryngeal airways when indicated. Current research suggests minimizing the use of volatile anesthetics and opioids can reduce the incidence of PONV, but this does not reflect current practice. Methods In this scoping review, the MeSH search terms used to collect data were “anesthesia”, “postoperative nausea and vomiting”, “morbidity”, “retrospective studies”, “anesthesia, general”, “analgesics, opioid”, “pain postoperative”, “pain management” and “anesthesia, intravenous”. The Discovery Search engine, AccessMedicine and UpToDate were the search engines used to research this data. Filters were applied to these searches to ensure all the literature was peer-reviewed, full-text and preferably from academic journals. Results Opioid free anesthesia was found to decrease PONV by 69%. PONV incidence was overwhelming decreased with opioid free anesthesia in every study that was reviewed. Implications The future direction of opioid-free anesthesia and PONV prevention are broad topics to discuss, due to the nature of anesthesia. Administration of TIVA, esmolol and ketamine, as well as the decision to withhold opioids, are solely up to the anesthesia provider’s discretion. Increasing research and education in the importance of opioid-free anesthesia to decrease the incidence of PONV will be necessary to ensure anesthesia providers choose this protocol in their practice.