Essays about: "shell formation"

Showing result 1 - 5 of 17 essays containing the words shell formation.

1. 1. Potential of tall oil pitch as phase change material in lignin-shelled hybrid nanocapsules for thermal energy storage.

   University essay from Mittuniversitetet/Institutionen för kemiteknik

   Author : Helena Viberg Nissilä; [2022]
   Keywords : phase change materials PCM ; tall oil pitch TOP ; lignin; nanocapsules; hybrid material; thermal storage;

   Abstract : A prospect in utilizing thermal energy in development of energy systems is by the useof phase change materials (PCMs). PCMs are materials that can store and releaseenergy during phase changes, e.g. from solid to liquid. READ MORE

3. 2. Colliding Galaxies in a (Nut)Shell

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Fysiska institutionen

   Author : Jonathan Petersson; [2022]
   Keywords : shell galaxies; simulations; starbursts; quenching; mergers; Physics and Astronomy;

   Abstract : Galaxy interactions and mergers are natural recurring events in the current cosmological paradigm, events that often coincide with starbursts and enhanced star formation activity. To understand why that is, one can use idealised (non-cosmological) merger simulations, which provide freedom to recreate specific tidally distorted galaxies, and analysis of the time evolution and underlying physics of the star formation activity at a high spatial resolution. READ MORE

4. 3. Remediation of an arsenic-contaminated anoxic aquifer in hjältevad with zerovalent iron : assessment and modelling of sorption strength and solubility of arsenic

   University essay from SLU/Dept. of Soil and Environment

   Author : Kathrin Leicht; [2021]
   Keywords : arsenic remediation; zerovalent iron; anoxic aquifer;

   Abstract : In-situ injection of zerovalent Iron (ZVI) particles to remediate contaminated groundwater is a widely applied approach. However, studies assessing the remediation and immobilisation mechanisms of Arsenic (As) under anoxic field conditions with zerovalent iron particles are lacking, especially for nanosized sulphidated ZVI (S-nZVI) and oxidic shell free ZVI (OSF-nZVI). READ MORE

5. 4. Nanocellulose surface functionalization for in-situ growth of zeolitic imidazolate framework 67 and 8

   University essay from Uppsala universitet/Nanoteknologi och funktionella material

   Author : Beyar Abdulla; [2020]
   Keywords : Zeolitic Imidazolate Framework; ZIF-8; ZIF-67; CNF@MOF; CNF@ZIF; TEMPO CNF; Nanomaterials; Nanocomposites; Metal-Organic Framework; Biopolymers;

   Abstract : This master’s thesis was conducted at the Department of Nanotechnology and Functional Materials at Ångström Laboratory as part of an on-going project to develop hybrid nanocomposites from Cladophora cellulose and a sub-type of metal-organic frameworks; zeolitic imidazolate frameworks (ZIFs). By utilizing a state-of-the-art interfacial synthesis approach, in-situ growth of ZIF particles on the cellulose could be achieved. READ MORE

6. 5. Acoustic Characterization of the Frequency-Dependent Attenuation Profile of Cellulose Stabilized Perfluorocarbon Droplets

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Lisa Saljén; [2020]
   Keywords : Ultrasound; Contrast Agent; Attenuation; Acoustic Characterization; Non Destructive Evaluation; Perfluorocarbon; Droplet; Cellulose; Oscillation; Acoustic Droplet Vaporization;

   Abstract : The use of ultrasound contrast agents increases the information available for reconstruction during ultrasound imaging. Previously studied microbubbles, consisting of a gas core, are subject to limitations such as a short lifetime and a large size. READ MORE