Log in

Relevant bibliographies by topics / Modal sheaf / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Modal sheaf.

Dissertations / Theses on the topic 'Modal sheaf'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Modal sheaf.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Tsotras, Achillefs. "On the interaction between modal behaviour and shear force behaviour of a pneumatic tyre." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6031.

Full text

Abstract:

The in-plane phenomena of interaction between the tyre structural response and contact force generation are investigated in this work. The challenges of the physical tyre simulation are identified, primarily associated with the computational load imposed by the need to capture the space distributed mechanisms that prescribe the above interaction. The method of modal expansion and reduction is proposed for the moderation of this load. The theoretical framework for the transformation of a tyre modal representation into a transient contact and shear force generation model is developed. Various mo

APA, Harvard, Vancouver, ISO, and other styles

2

Sadrizadeh, Sasan. "Instabilities in Pulsating Pipe Flow of Shear-Thinning and Shear-Thickening Fluids." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-82037.

Full text

Abstract:

In this study, we have considered the modal and non-modal stability of fluids with shear-dependent viscosity flowing in a rigid straight pipe. A second order finite-difference code is used for the simulation of pipe flow in the cylindrical coordinate system. The Carreau-Yasuda model where the rheological parameters vary in the range of 0.3 < n < 1.5 and 0.1 < λ < 100 is represents the viscosity of shear- thinning and shear thickening fluids. Variation of the periodic pulsatile forcing is obtained via the ratio Kω/Kο and set between 0.2 and 20. Zero and non-zero streamwise wavenumbe

APA, Harvard, Vancouver, ISO, and other styles

3

Trivedi, Arjav. "Shelf-edge exchange in a numerical model of the Shetland shelf." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/52909.

Full text

Abstract:

The fast Shetland slope current flows on one side of the Faroe-Shetland Channel (FSC). Mesoscale activity and bottom friction are mechanisms that affect the slope current, helping to mix water and tracers across the shelf-edge. We simulate the FSC dynamics using a high resolution (~ 2km) hydrostatic configuration of the Massachusetts Institute of Technology General Circulation Model (MITgcm). The model was validated against a variety of observations: surface currents; Sea Surface Temperatures (SSTs); Acoustic Doppler Current Profilers (ADCPs); hydrographic observations; and shelf-edge exchange

APA, Harvard, Vancouver, ISO, and other styles

4

Semeraro, Onofrio. "Feedback control and modal structures in transitional shear flows." Licentiate thesis, KTH, Stabilitet, Transition, Kontroll, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-29754.

Full text

Abstract:

Two types of shear flows are investigated in this thesis; numerical simulations are performed for the analysis and control of the perturbation arising in a boundary layer over a flat plate, whereas PIV measurements are analysed for the investigation of a confined turbulent jet. Modal structures of the flows are identified: the aim is to understand the flow phenomena and to identify reduced-order models for the feedback control design. The attenuation of three-dimensional wavepackets of streaks and Tollmien-Schlichting (TS) waves in the boundary layer is obtained using feedback control based on

APA, Harvard, Vancouver, ISO, and other styles

5

Semeraro, Onofrio. "Active Control and Modal Structures in Transitional Shear Flows." Doctoral thesis, KTH, Stabilitet, Transition, Kontroll, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-117916.

Full text

Abstract:

Flow control of transitional shear flows is investigated by means of numerical simulations. The attenuation of three-dimensional wavepackets of Tollmien-Schlichting (TS) and streaks in the boundary layer is obtained using active control in combination with localised sensors and actuators distributed near the rigid wall. Due to the dimensions of the discretized Navier-Stokes operator, reduced-order models are identified, preserving the dynamics between the inputs and the outputs of the system. Balanced realizations of the system are computed using balanced truncation and system identification.

APA, Harvard, Vancouver, ISO, and other styles

6

Strömgren, Tobias. "Model predictions of turbulent gas-particle shear flows." Doctoral thesis, KTH, Mekanik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12135.

Full text

Abstract:

A turbulent two-phase flow model using kinetic theory of granularflows for the particle phase is developed and implmented in afinite element code. The model can be used for engineeringapplications. However, in this thesis it is used to investigateturbulent gas-particle flows through numerical simulations. The feedback from the particles on the turbulence and the meanflow of the gas in a vertical channel flow is studied. In particular,the influence of the particle response time, particle volumefraction and particle diameter on the preferential concentration ofthe particles near the walls, caus

APA, Harvard, Vancouver, ISO, and other styles

7

Daly, Conor Anthony. "Nonlinear and non-modal stability of structures evolving in shear flows." Thesis, University of Cambridge, 2014. https://www.repository.cam.ac.uk/handle/1810/245254.

Full text

Abstract:

This thesis explores a range of stability techniques applied to fluid structures that develop in various constant density flows. In particular, the stability of nonlinear structures which develop in rotating plane Couette flow is analyzed using Floquet theory, which allows the global stability of an important secondary nonlinear structure called a Taylor vortex to be determined. From this the distinct tertiary states which emerge as Taylor vortices break down are characterized and their bifurcation behaviour is studied. Also, non-modal stability analyses are conducted in rotating plane Couette

APA, Harvard, Vancouver, ISO, and other styles

8

Gang, Liu. "VERIFICATION OF SHEAR WAVE VELOCITY BASED LIQUEFACTION CRITERIA USING CENTRIFUGE MODEL." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1228274570.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Al-Mulla, Adam. "Droplet coalescence in the shear flow of model emulsions." Morgantown, W. Va. : [West Virginia University Libraries], 1998. http://etd.wvu.edu/templates/showETD.cfm?recnum=384.

Full text

Abstract:

Thesis (M.S.)--West Virginia University, 1998.<br>Title from document title page. Document formatted into pages; contains xxi, 153 p. : ill. Includes abstract. Includes bibliographical references (p. 68-72).

APA, Harvard, Vancouver, ISO, and other styles

10

Lyman, Noah J. "Incorporating Shear Resistance into Debris Flow Triggering Model Statistics." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2254.

Full text

Abstract:

Several regions of the Western United States utilize statistical binary classification models to predict and manage debris flow initiation probability after wildfires. As the occurrence of wildfires and large intensity rainfall events increase, so has the frequency in which development occurs in the steep and mountainous terrain where these events arise. This resulting intersection brings with it an increasing need to derive improved results from existing models, or develop new models, to reduce the economic and human impacts that debris flows may bring. Any development or change to these mode

APA, Harvard, Vancouver, ISO, and other styles

11

Bremner, Sherry. "A granular flow model of an annular shear cell." Doctoral thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20304.

Full text

Abstract:

Machinery such as an IsaMillTM used in communition to produce fine particle sizes that allow minerals to be extracted are best modelled using granular flows. A single rheological description that captures all the features of granular flows has not yet been realised, although considerable progress towards a complete theory has been made. Existing models of such horizontally stirred mills are empirical, tend to be extremely dependent on boundary conditions and do not allow for confident extrapolation beyond their window of design. As a first step to understanding the dynamics inside the IsaMill

APA, Harvard, Vancouver, ISO, and other styles

12

Horne, Susan Elaine. "A Seasonal Shelf Space Reorder Model Decision Support System." Kent State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1291086889.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Kamat, Anuja Ganesh. "Split Concrete Model for Shear Behavior of Concrete Beams." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/193611.

Full text

Abstract:

Split Concrete Model (SCM) is a unified approach towards modeling shear behavior in concrete. SCM is essentially a rational model which is evaluated and modified using a large experimental database.The shear strength of the concrete beam is modeled as the sum of the contribution of concrete, transverse reinforcement, longitudinal reinforcement and bond between concrete and longitudinal reinforcement. Concrete does not contribute to the shear strength after the formation of the crack. In SCM, this is shown to be accurately modeled by only considering the second branch of the critical crack whil

APA, Harvard, Vancouver, ISO, and other styles

14

Goddard, Paul B., Carolina O. Dufour, Jianjun Yin, Stephen M. Griffies, and Michael Winton. "CO2-Induced Ocean Warming of the Antarctic Continental Shelf in an Eddying Global Climate Model." AMER GEOPHYSICAL UNION, 2017. http://hdl.handle.net/10150/626296.

Full text

Abstract:

Ocean warming near the Antarctic ice shelves has critical implications for future ice sheet mass loss and global sea level rise. A global climate model with an eddying ocean is used to quantify the mechanisms contributing to ocean warming on the Antarctic continental shelf in an idealized 2xCO(2) experiment. The results indicate that relatively large warm anomalies occur both in the upper 100 m and at depths above the shelf floor, which are controlled by different mechanisms. The near-surface ocean warming is primarily a response to enhanced onshore advective heat transport across the shelf br

APA, Harvard, Vancouver, ISO, and other styles

15

Marcollo, Hayden 1972. "Multimodal vortex-induced vibration." Monash University, Dept. of Mechanical Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/7674.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Walsh, David. "A model of a Mediterranean salt lens in external shear." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/57830.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Cantillon, Daire. "Development and characterisation of a low-shear mycobacterial biofilm model." Thesis, University of Brighton, 2017. https://research.brighton.ac.uk/en/studentTheses/2a58b09f-1333-449f-9c72-d44011877211.

Full text

Abstract:

Tuberculosis (TB) is a bacterial disease that primarily affects the lungs and is caused by the bacillus Mycobacterium tuberculosis (M.tb). Approximately 1 in 3 people are latently infected globally, with 1.5 million people dying from active TB in 2015 alone. Prolonged therapy of at least six months with four antimicrobial drugs is required to successfully treat disease. This lengthy drug treatment is necessary to remove sub-populations of M.tb that are tolerant to antimicrobial drugs and as a result persist through drug therapy. Despite the hypothesised clinical significance of drug tolerant M

APA, Harvard, Vancouver, ISO, and other styles

18

Cheok, Van Seng Joseph. "Modelling the vertical structure of flows in the shelf seas." Thesis, Bangor University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320063.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Yeung, Arthur Ching Ki. "Numerical monotonic and cyclic simulations of sands using an endochronic plane strain model." Thesis, University of Bristol, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243676.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Birmingham, Ryan W. "TRANSPORT PATHWAYS OF SHELF SOURCE MICRONUTRIENTS TO THE SOUTHERN OCEAN." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53728.

Full text

Abstract:

We use a numerical ocean model to evaluate the hypothesis that the continental shelves are significant sources of dissolved iron to the Southern Ocean. We simulate the distribution of passive tracers released from the 18 different continental shelf regions of the extra-tropical southern hemisphere oceans using an offline, eddy-permitting transport model. The circulation fields are taken from the Southern Ocean State Estimate, and we only simulate the transport of inert tracers focusing on the physical transport pathways. The resulting tracer fields are then compared with the remotely sensed oc

APA, Harvard, Vancouver, ISO, and other styles

21

Wölkl, Stefan Josef [Verfasser], Kristina [Akademischer Betreuer] Shea, and Birgit [Akademischer Betreuer] Vogel-Heuser. "Model Libraries for Conceptual Design / Stefan Josef Wölkl. Gutachter: Kristina Shea ; Birgit Vogel-Heuser. Betreuer: Kristina Shea." München : Universitätsbibliothek der TU München, 2013. http://d-nb.info/1034420720/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Chen, Cameron Kai-Ming. "Analysis of the metal cutting process using the shear plane model." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/chen/ChenC1210.pdf.

Full text

Abstract:

The objective of the metal cutting process is to reshape a piece of metal, or workpiece, of initial geometry into a new geometry of desired shape. Although there are a variety of ways to cut metal, this study focuses on the type of cutting where metal is sheared away from the workpiece as is commonly done with machine tools such as the lathe or mill. Typically, the correct machine settings can be found from reference guides that summarize a great amount of empirical data on metal cutting. Trial and error when combined with experience, often suffices to select the proper process parameters.

APA, Harvard, Vancouver, ISO, and other styles

23

Rouleau, Léonie. "Endothelial cell response to shear stress in an asymmetric stenosis model." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99535.

Full text

Abstract:

Endothelial cell dysfunction has been linked to atherosclerosis through their response to hemodynamic forces. Flow in stenotic vessels creates complex spatial gradients in wall shear stress. In vitro studies examining the effect of shear stress on endothelial cells have used unrealistic and simplified models, which cannot reproduce physiological conditions. Endothelial cells were grown and exposed for different times to physiological steady flow in straight dynamic control and in idealized asymmetric stenosis models. Cells subjected to 1D flow aligned with flow direction and had a spindle-like

APA, Harvard, Vancouver, ISO, and other styles

24

Attari, Jalal. "Shear layer behaviour in the near wake of a model gate." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249309.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Baldwin, Metzger Kirsten Anne. "Experimental Verification of a New Single Plate Shear Connection Design Model." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/32576.

Full text

Abstract:

Single plate shear connections are designed to have sufficient strength to resist the shear force and moment transferred from the beam. The connections must also provide sufficient ductility to allow the beam end to rotate freely. In the United States the current recommended design method is found in the AISC 13th Edition Steel Construction Manual (2005b). The limited experimental work which led to the current method necessitated additional single plate shear connection investigations. This paper summarizes the results and analysis of eight full scale single plate shear connections tested

APA, Harvard, Vancouver, ISO, and other styles

26

Siebrits, Eduard. "Three-dimensional elastodynamic shear fracture propagation and ground motion simulation model." Master's thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/26137.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Dacanay, Thomas Christian. "Ultra-High Performance Concrete Shear Walls in Tall Buildings." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/65161.

Full text

Abstract:

This thesis presents the results of an effort to quantify the implications of using ultra-high performance concrete (UHPC) for shear walls in tall buildings considering structural efficiency and environmental sustainability. The Lattice Discrete Particle Model (LDPM) was used to simulate the response to failure of concrete shear walls without web steel bar reinforcement under lateral loading and constant axial compressive loading. The structural efficiency of UHPC with simulated compressive strength of f'c = 231 MPa was compared to that of a high-performance concrete (HPC) with f'c = 51.7 MP

APA, Harvard, Vancouver, ISO, and other styles

28

Borzacchiello, Nicola. "Shear behaviour of FRP RC beam." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

Find full text

Abstract:

This thesis investigates the shear behaviour of reinforced concrete beams with FRP bars (Fibre Reinforced Polymers) as a substitute for steel bars. This means that both longitudinal and transverse reinforcement shall be in FRP. The main aim of this study shall be to compare the most recent worldwide regulations in force (based on the use of FRP) with an existing database compose of 205 samples. Correction of some standards shall be proposed, as well as personal modification of the Model Code 2010. The material’s properties shall be presented first, then the various shear crack mechanisms shall

APA, Harvard, Vancouver, ISO, and other styles

29

PRUETT, CHARLES DAVID. "NUMERICAL SIMULATION OF NONLINEAR WAVES IN FREE SHEAR LAYERS (MIXING, COMPUTATIONAL, FLUID DYNAMICS, HYDRODYNAMIC STABILITY, SPATIAL, FLUID FLOW MODEL)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183869.

Full text

Abstract:

A numerical model has been developed which simulates the three-dimensional stability and transition of a periodically forced free shear layer in an incompressible fluid. Unlike previous simulations of temporally evolving shear layers, the current simulations examine spatial stability. The spatial model accommodates features of free shear flow, observed in experiments, which in the temporal model are precluded by the assumption of streamwise periodicity; e.g., divergence of the mean flow and wave dispersion. The Navier-Stokes equations in vorticity-velocity form are integrated using a combinati

APA, Harvard, Vancouver, ISO, and other styles

30

Hoepffner, Jérôme. "Stability and control of shear flows subject to stochastic excitations." Doctoral thesis, KTH, Mekanik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3929.

Full text

Abstract:

In this thesis, we adapt and apply methods from linear control theory to shear flows. The challenge of this task is to build a linear dynamic system that models the evolution of the flow, using the Navier--Stokes equations, then to define sensors and actuators, that can sense the flow state and affect its evolution. We consider flows exposed to stochastic excitations. This framework allows to account for complex sources of excitations, often present in engineering applications. Once the system is built, including dynamic model, sensors, actuators, and sources of excitations, we can use standar

APA, Harvard, Vancouver, ISO, and other styles

31

Lazzari, Elisa. "Analysis of shear strength of rock joints with PFC2D." Thesis, KTH, Jord- och bergmekanik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-129740.

Full text

Abstract:

Joints are the main features encountered in rock and sliding of rock blocks on joints is classified as the principal source of instability in underground excavations. In this regard, joints’ peak shear strength is the controlling parameter. However, given the difficulty in estimating it, shear tests are often performed. These are often quite expensive and also time consuming and, therefore, it would be valuable if shear tests could be artificially performed using numerical models. The objective of this study is to prove the possibility to perform virtual numerical shear tests in a PCF2D enviro

APA, Harvard, Vancouver, ISO, and other styles

32

Badeau, Allen E. "A droplet formation and entrainment model for stratified liquid-liquid flows." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1737.

Full text

Abstract:

Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains xiii, 150 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 140-144).

APA, Harvard, Vancouver, ISO, and other styles

33

Stolz, Steffen. "Large-eddy simulation of complex shear flows using an approximate deconvolution model /." [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13861.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Cheek, Carlos. "Evaluation of a numerical thrombosis model for a high shear rotating flow /." Online version of thesis, 2008. http://hdl.handle.net/1850/7117.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Haji, Ashrafi Mohammad Ali. "Implementation of a Critical State Soft Soil Creep Model with Shear Stiffness." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for bygg, anlegg og transport, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-25667.

Full text

Abstract:

The existing creep constitutive models do not include directly shear stiffness of the soil that can be easily obtained by standard geotechnical tests. These models do not account for high shear stiffness of the soil at small mobilisation degree. In this respect, they do not distinguish between soil elements that undergo lower mobilisation in the far field and the ones that undergo higher mobilisation close to the embankment. This may result in overprediction of horizontal displacements under the field and the result of the finite element analysis is sensitive to the extension of the model boun

APA, Harvard, Vancouver, ISO, and other styles

36

Tucker, Russell P. "Validating a new in vitro model for dynamic fluid shear stress mechanobiology." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:0ea8b159-5cb6-4bf0-9a60-4c580824016a.

Full text

Abstract:

In vitro mechanotransduction studies, uncovering the basic science of the response of cells to mechanical forces, are essential for progress in tissue engineering and its clinical application. Many varying investigations have described a multitude of cell responses, however as the precise nature and magnitude of the stresses applied are infrequently reported and rarely validated, the experiments are often not comparable, limiting research progress. This thesis provides physical and biological validation of a widely available fluid stimulation device, a see-saw rocker, as an In vitro model for

APA, Harvard, Vancouver, ISO, and other styles

37

Thor, Nandan G. "Using Computer Vision to Build a Predictive Model of Fruit Shelf-life." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1721.

Full text

Abstract:

Computer vision is becoming a ubiquitous technology in many industries on account of its speed, accuracy, and long-term cost efficacy. The ability of a computer vision system to quickly and efficiently make quality decisions has made computer vision a popular technology on inspection lines. However, few companies in the agriculture industry use computer vision because of the non-uniformity of sellable produce. The small number of agriculture companies that do utilize computer vision use it to extract features for size sorting or for a binary grading system: if the piece of fruit has a certain

APA, Harvard, Vancouver, ISO, and other styles

38

Zhou, Weijun Kornfield Julia A. Kornfield Julia A. "Dynamics and shear alignment behavior of a model thermotropic liquid crystalline polymer /." Diss., Pasadena, Calif. : California Institute of Technology, 2001. http://resolver.caltech.edu/CaltechETD:etd-08292008-110129.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Ivanova, Kseniya. "Mathematical model of multi-dimensional shear shallow water flows : problems and solutions." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0642/document.

Full text

Abstract:

Cette thèse porte sur la résolution numérique du modèle multi-dimensionnel d'écoulement cisaillé en eau peu profonde. Dans le cas d'un mouvement unidimensionnel, ces équations coïncident avec les équations de la dynamique de gaz pour un choix particulier de l'équation d'état. Dans le cas multi-dimensionnel, le système est complètement différent du modèle de la dynamique de gaz. Il s'agit d'un système EDP hyperbolique 2D non-conservatif qui rappelle un modèle de turbulence barotrope. Le modèle comporte trois types d'ondes correspondant à la propagation des ondes de surface, des ondes de cisaill

APA, Harvard, Vancouver, ISO, and other styles

40

Vorobtsova, Natalya. "Computational model of coronary tortuosity." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/51267.

Full text

Abstract:

Coronary tortuosity is the abnormal curving and twisting of the coronary arteries. Although the phenomenon of coronary tortuosity is frequently encountered by cardiologists its clinical significance is unclear. It is known that coronary tortuosity has significant influence on the hemodynamics inside the coronary arteries, but it is difficult to draw definite conclusions due to the lack of patient-specific studies and an absence of a clear definition of tortuosity. In this work, in order to investigate a relation of coronary tortuosity to such diseases as atherosclerosis, ischemia, and angina,

APA, Harvard, Vancouver, ISO, and other styles

41

Sas, Gabriel. "FRP shear strengthening of reinforced concrete beams." Doctoral thesis, Luleå tekniska universitet, Byggkonstruktion och -produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25881.

Full text

Abstract:

The shear failure mechanisms of flexural reinforced concrete (RC) members is highly complex; its precise details cannot be explained with simple analytical relationships, and are the topic of considerable scientific debate. The studies described and examined the three most used shear theories in the world – the fixed angle truss model (45°TM), the variable angle truss model (VAT), and modified compression field theory (MCFT). These three theories rest on the assumption that a beam loaded in shear behaves as a truss. However, this assumption is applied in different ways in various codes. In thi

APA, Harvard, Vancouver, ISO, and other styles

42

To, Chiu-yin. "A unified elasto-plastic model for saturated loosely compacted completely decomposed granite." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/b40203554.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Dewaidi, Mohaned Ali. "Design Method for Cold-Formed Steel Shear Wall Sheathed with Polymer Composite Panel." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1707373/.

Full text

Abstract:

In order to predict the strength of shear wall with cold-formed steel framing members, analytical models were reviewed. Multiple analytical models were studied, as well as twenty-one connection tests were performed. The connection tests consist of 50-ksi cold-formed steel framing track, different fastening configurations, and different sheathing thicknesses (1/8" and 1/2"). No.12 screw resulted in the highest peak load of all fastening configurations, while the rivet connection had the lowest peak load. In addition, failure modes were observed after conducting the connection tests including sh

APA, Harvard, Vancouver, ISO, and other styles

44

Brooks, Zachary Edward. "Mechanical Stresses on Nasal Mucosa Using Nose-On-Chip Model." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1578492176817977.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Lee, Hisung. "A numerical solution to the elastohydrodynamic problem incorporating a non-newtonian rheological model." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/15945.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Yanagi, Noritsugu. "Analytical Model of Cold-formed Steel Framed Shear Wall with Steel Sheet and Wood-based Sheathing." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc271920/.

Full text

Abstract:

The cold-formed steel framed shear walls with steel sheets and wood-based sheathing are both code approved lateral force resisting system in light-framed construction. In the United States, the current design approach for cold-formed steel shear walls is capacity-based and developed from full-scale tests. The available design provisions provide nominal shear strength for only limited wall configurations. This research focused on the development of analytical models of cold-formed steel framed shear walls with steel sheet and wood-based sheathing to predict the nominal shear strength of the wal

APA, Harvard, Vancouver, ISO, and other styles

47

Cui, Xiaoyu. "Drop-weight Impact Behaviour of a Shear Thickening Fluid in a Finite Volume." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25941.

Full text

Abstract:

This thesis aims to study and explore the drop-weight impact-induced solidification process of an STF, consisting of 58 vol% styrene/acrylate particles in ethylene glycol, in a finite volume. The study begins with the characterisation of the mechanical behaviours (i.e., rheological and confined compression behaviours) of the STF. Low-velocity drop-weight impact experiments are conducted to investigate the effect of the STF’s dimensions in a finite volume on the impact behaviour of the STF. It is found that the impact behaviour is related to both the depth and the diameter of the STF. A new mo

APA, Harvard, Vancouver, ISO, and other styles

48

Wilson, Wesley M. "The development of a droplet formation and entrainment model for simulations of immiscible liquid-liquid flows." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=1161.

Full text

Abstract:

Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains xvi, 219 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 166-169).

APA, Harvard, Vancouver, ISO, and other styles

49

Harris, Matthew Bradley. "Elucidating the Mechanisms of Rate-Dependent Deformation at Ambient Temperatures in a Model Metallic Glass." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/6145.

Full text

Abstract:

In this work, the Shear Transformation Zone (STZ) dynamics model is adapted to capture the transitions between different regimes of flow serration in the deformation map of metallic glass. This was accomplished by scaling the STZ volume with a log-linear fit to the strain rate, and also adjusting the activation energy of an STZ with a log-linear fit to maintain constant yield strength at differing strain rates. Twelve simulations are run at each of six different strain rates ranging from 10-5 to 100 s-1, and statistics are collected on simulation behavior and shear band nucleation and propagat

APA, Harvard, Vancouver, ISO, and other styles

50

Lamine, Slim 1965. "A predictive model of shelf life enhancement for meat packed under modified atmospheres." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277920.

Full text

Abstract:

A dynamic model of fresh beef packaged under modified atmospheres has been developed. This model links the change in meat color with the permeation of gases (O₂, CO₂, N₂) through the packaging film. Its viability is demonstrated with experimental data using muscle semimembranosus with which it was shown that color change of the meat surface and the change of headspace gas concentration were well described by the model. Moreover, the model parameters were obtained independently of the model itself through the literature. A major result of the model showed that surface color is independent of ox

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!