Browsing by Subject "Characteristics"
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Item Perceptions of university reading improvement by reading improvement students: a case study(Texas Tech University, 2008-05) Simmons, Collene; Lock, Robin; Christopher, Mary; Layton, Carol A.The perception that all high school graduates make a smooth transition to college is idealistic. This study addresses the fact that each fall, diverse groups of students enter the world of four-year college academia. This diversity includes cultural uniqueness, distinctiveness in academic strengths, and individual learning differences. Universities accommodate the learning differences outside the entrance criteria through academic preparatory courses. A 1995 study completed by The National Center for Education Statistics indicates that 13% of students enter college without effective reading skills for success with college curriculum (Merisotis & Phipps, 1998; 2000). The purpose of this qualitative case study is to determine whether students enrolled in preparatory reading gain confidence in their reading skills, apply the skills learned, and evaluate the effects of applying the skills learned. What strategies learned in reading improvement at Hardin-Simmons University increase the reading confidence of freshman students? This research question is best answered through qualitative research using a case study design. Data collection techniques utilized included: 1) a reading skills inventory, 2) a reading survey, 3) structured interviews, and 4) semi-structured interviews. The case study methodology identified six themes: reader confidence, processing, learned strategies, realizations, volume of reading, and management of reading. The result of this study indicated that preparatory reading at the four-year college level increases reader confidence, causes student to process text differently, develops awareness of college reading, and expands their engagement in reading perspective.Item A quadrature Eulerian-Lagrangian WENO scheme for reservoir simulation(2015-08) Pool, Jamie Micayla; Arbogast, Todd James, 1957-; Balhoff, Matthew T; Chen, Thomas; Gonzalez, Oscar; Vasseur, Alexis F; Wheeler, Mary FThis dissertations focuses on solving the advection problem with the motivation of simulating transport in porous media. A quadrature based Eulerian-Lagrangian scheme is developed to solve the nonlinear advection problem in multiple spatial dimensions. The schemes combines the ideas of Lagrangian traceline methods with high order WENO reconstructions to compute the mass that flows into a given cell over a time step. These schemes are important since they have a relaxed CFL constraint, and can be run in parallel. In this thesis we provide two improvements to Eulerian-Lagrangian schemes. To do this an integration based WENO (IWENO) interpolation technique is derived by reconstructing the primitive function and differentiating. This technique gives a high order reconstruction of the mass at an arbitrary point. This WENO scheme is used to solve the linear advection problem. A scheme is derived by backwards tracing of quadrature points located on mesh elements. The mass at these tracepoints is used to compute the mass in the trace region, without resolving its boundary. This process defines a high order quadrature Eulerian-Lagrangian WENO (QEL-WENO) scheme that solves the multi-dimensional problem without the need for a spatial splitting technique. The second improvement is for solving the nonlinear advection problem using an approximate velocity field. The velocity field is used to transport mass in the manner of a standard Eulerian-Lagrangian scheme. Then a flux correction is applied to compute the flow across the tracelines. The contribution is to use a variation of the IWENO technique to reduce the stencil size of this computation. Numerical results are presented demonstrating the capabilities of the scheme. An application to two-phase flow in porous media is provided.