Index Catalog // Arch : Northwestern University Institutional Repository

Description:: This dissertation contributes to the theory of segregation and methodologies to measure it. The first two chapters focus on the traditional problem of quantifying segregation in traditional survey data through segregation indices. Segregation indices describe the segregation of an environment with one number – usually from 0 to 1. The...
Keyword:: Word Embedding, Statistical Inference, Segregation, and Segregation Index
Subject:: Sociology and Statistics
Creator:: Nanni, Antonio
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 06/22/2022
Date Created:: 2022-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_901361 and http://dissertations.umi.com/northwestern:16050

Description:: Although flowing granular materials have been formally studied for over two hundred years, their behavior is still poorly understood relative to fluids, solids, and gases. Sheared granular materials with differing particle properties (e.g., size, density, shape) segregate (de-mix) due to percolation (small particles fall between large ones) and buoyancy (light...
Keyword:: Non-Spherical Particles, Granular Materials, Segregation, and Discrete Element Method
Subject:: Physics, Mechanical engineering, and Fluid mechanics
Creator:: Jones, Ryan Patrick
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 01/21/2021
Date Created:: 2020-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_738802 and http://dissertations.umi.com/northwestern:15060

Description:: Segregation of polydisperse granular materials remains to be a challenging problem in many industrial processes. However, most studies have focused either on bidisperse (two different particle size species) materials, which are not representative of most real mixtures, or on polydisperse materials in an idealized simple geometry. Additionally, most studies have...
Keyword:: Segregation, Polydisperse, and Particle flow
Subject:: Chemical engineering and Engineering
Creator:: Deng, Zhekai
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2019-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_687531 and http://dissertations.umi.com/northwestern:14851

Description:: Segregation of granular materials with different particle properties (e.g.,~size and density) is a ubiquitous phenomenon in nature and industry. In this thesis, different segregation mechanisms are studied in steady granular heap flows. Flow kinematics and segregation in transient granular flows are also explored. ', '\t', 'First, this thesis studies segregation...
Keyword:: Non-spherical particles, Unsteady flow, Density segregation, Segregation, and Granular materials
Subject:: Mechanical Engineering
Creator:: Hongyi Xiao
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/08/2019
Date Modified:: 10/08/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

LIBRARIES | ARCH