Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 43 for “"de-icing"”.
-
Pulse de-icing for aircraft applications
… on aircraft is a major problem in aviation. Icing is directly responsible for fatal aircraft incidents, limiting the safety of air travel and requiring expensive, inefficient, and sometimes ineffective de-icing strategies. In this work, we develop and study electro-thermal pulse deicing …
-
Development of improved aircraft de-icing fluids
… blends as improved thickening agents of aircraft de-/anti-icing fluids is investigated. Current fluid thickeners commonly comprise PAA homo or co polymers and two examples are investigated in terms of their structure, characteristics, size and the rheological profile as aqueous and solutions in a …
-
Aircraft De-Icing System Using Thermal Conductive Fibers
… flight control as drag is increased with a tendency for higher relative turbulence over the wing. Pre-emptive and reactive ice removal techniques have been employed in the past by electromechanical, thermal, chemical and pneumatic methods. In this thesis, a carbon fiber fabric is utilized as a …
-
Finite Element Modeling of Macro Fiber Composite Actuators with Application to Wing De-icing
<p>Icing can have a profound impact on aircraft performance during inclement weather conditions. Aircraft icing primarily occurs on the leading edge of wings, tails and engines. The de-icing/anti-icing technologies currently in use are typically bulky, heavy, cover the entire airfoil surface and …
-
Experimental investigation of contamination and adhesion failure of type II aircraft ground de-icing fluids
… (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1995.
-
Design of a novel flying capacitor multilevel buck-boost converter for electric aircraft de-icing applications
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-12-01
-
Experimental investigations of physical factors which influence runoff and failure behavior of aircraft de-icing fluids
… (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1994.
-
Chloride binding and desorption mechanism in blended cement containing supplementary cementitious materials exposed to de-icing brine solutions
Concrete, the most widely used construction material globally, faces significant challenges due to its porous nature, particularly from chloride-induced corrosion. This corrosion, primarily caused by chloride ions penetrating concrete, affects over 7.5% of U.S. concrete bridges, incurring annual …
-
Evaluation of the Impacts of De-Icing Salts on the Performance of Bioretention Media in Retaining Phosphorus From Urban Stormwater
Bioretention systems are a low impact development system that can remove pollutants such as phosphorus (P) from urban stormwater. P retention in bioretention systems is complicated in cold climate regions due to factors such as inputs of road de-icing salts. This study evaluates the impact of …
-
Determination of the end of functional service life for concrete bridge components
… States faces a tremendous problem: the gradual deterioration of the nation's bridges. A major component of the overall bridge deterioration problem is the corrosion-induced deterioration of reinforced concrete bridge components that are exposed to de-icing salts. The progression of events …
-
The investigation of methods to assist decision-makers regarding bridge maintenance, rehabilitation, and restoration activities
The ability to predict the deterioration pattern of bridges can assist decision makers in determining when and whether to ignore, refurbish/rehabilitate, or replace a bridge. This dissertation formulates and applies two models, one deterministic and the other probabilistic, capable of predicting …
-
Exploiting Interfacial Phenomena to Expel Matter from its Substrate
… of interfacial physics problems. A thorough understanding of such interactions between a solid surface and different soft materials not only expands our theoretical knowledge, but also has applications in self-cleaning, omniphobic surfaces and phase-change heat transfer. Although there is a …
-
Mathematical modelling of unsteady problems in thin aerofoil theory
The de-icing of aircraft wings by the injection of fluid through a slot in the leading edge of the wing is analysed. A review of current de-icing methods is presented and the semi-infinite slot-injection equation derived, which is a singular partial integro-differential equation. The Stefan …
-
Characteristics of lateral-frontal moraine formed at Arctic and Alpine glaciers
… has stimulated the recession of glaciers world-wide. Moraines developed by valley glaciers provide a sedimentary record of their past response to climatic forcing. Despite the use of moraines for understanding the character and behaviour of former glaciers, our understanding of moraine development …
-
Characterization of UHPFRC Materials for Bridge Construction: An Opportunity to Offset the Need for Prestressing in Bridge Decks
In the current decade, an increasing number of reinforced concrete bridge structures are deemed to be in need of repair either due to the short durability lifetime of the materials of their original design, or due to climatic extremes that cause the concrete materials to fail (Mermigas 2018). This …
-
One- and Two-Dimensional sp2-Carbon Nanomaterials: Synthesis, Properties, and Applications
… control, modify, hybridize, interface, understand, and apply one- and two-dimensional sp2-carbon nanomaterials. The materials include graphene (2D), carbon nanotubes (1D), and graphene nanoribbons (pseudo-1D); and their hybrids with each other. Other classes of materials such as molecules, …
-
Hydraulic design of pervious concrete highway shoulders
Stormwater drainage has been a factor in roadway design for years. Now stormwater quantity and quality are also becoming regulated for roadways. As regulations of stormwater management continue to increase so does the need for more viable and effect management practices. The research presented and …
-
Applications of emerging optoelectronic materials : lead sulphide quantum dots and steam cracker tar
Optoelectronics covers a wide and varied field of devices and applications, with many requiring different material properties for operation and manufacturing. In this thesis, I describe work performed over the course of my degree to improve the performance and understanding of various …
-
Fabrication of natural and magnetic slippery surfaces
… They allow most common solids and liquids to slide off the surface easily. Because of this they are able to reduce the adhesion of food, ice, and even blood platelets to surfaces. As a result, LIPS have applications in reducing food waste, aircraft and powerlines deicing, and hemocompatable …
-
Atlantic Green Chemicals : bio-glycol plants : business plan
Atlantic Green Chemicals (AGC) has made a license agreement with its sister company Icelandic Process Development (IPD) about building and managing three Glycerin to Glycols Plants based on IPD patent that transforms glycerin (a byproduct from bio-diesel production) to Propylene Glycol (PG) using …
Page 1 of 3