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.
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Showing 1 to 20 of 22 for “"end-cap"”.
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Integration of the end cap TEC+ of the CMS silicon strip tracker
… was deeply involved in the completion of the end caps of the tracking system. The institute played a leading role in the end cap design, produced virtually all support structures and several important electrical components, designed and built the laser alignment system of the tracker, …
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A Study of coherent noise in binary Read-Out Systems and its applications to the ATLAS SemiConductor Tracker end-Cap
… The perfomance of the SCT system mainly depends on two parameters, which are noise occupancy and detection efficiency. Both of these parameters deteriorate with increasing noise in the system. It is therefore important to understand the effects of noise and to develop efficient methods to …
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Poly(ethyl glyoxylate) Solid-Core Particles for Drug Delivery
… of improved drug targeting and selective release capabilities in vivo. The challenge for most polymeric drug delivery systems remains the necessity for many stimuli events to trigger the release of cargo. Polymeric nanotechnology containing “self-immolative polymers” looks to alleviate the …
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Estimation of Elastic and Damping Characteristics of Viscoelastically Constrained Carbon Strands
… of a tube made from this material with metallic end caps is modeled and analyzed using commercially available Finite Element Analysis code ABAQUS®. The current analysis deals with the non-pressurized tube since the structure can maintain the tubular configuration as well as support end caps on …
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Propeller Noise Prediction of an Urban Air Mobility Vehicle in Urban Environment
… and Hawkings (FW–H) acoustic analogy to capture both unsteady flow dynamics and far-field sound radiation.</p> <p>The first part focuses on the investigation to transition (tilt) flight conditions, where both blade–vortex interaction (BVI) and blade–wake interaction (BWI) mechanisms are …
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Adaptive Collocated Feedback for Noise Absorption in Acoustic Enclosures
… The cylindrical duct enclosure with a movable end cap is used to test the adaptation properties of the controller. The movable end cap allows the frequencies of the acoustic modes to vary by more than 20 percent. Experiments show that a 10 percent change in the frequencies of the acoustic modes …
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The behavioural responses of stoats (Mustela erminea) to trapping tunnels
… behavioural responses to them, or the effect on capture rate (Dilks et al.,1996; Maxwell et al., 1997; Short and Reynolds, 2000). This thesis describes pen and field research, which examines the influence of several tunnel design variables on stoat entry behaviour. This information will be used …
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Novel, low-cost, CFRP pressure vessel design for hydrogen fuel cell applications
… tube that had two Poly Vinyl Chloride (PVC) end caps bonded onto either end with an adhesive. The inside wall of the CFRP tube was coated with a thin rubber liner to prevent leakage through the tube wall of the pressurised air-water mixture that provided the necessary thrust for the rocket. …
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MODIFICATION OF COMMERCIAL ROCKET MOTORS FOR TACTICAL APPLICATIONS
… vehicle. The modifications include a novel head-end ignition system and a tailorable nozzle end cap designed to provide reliable at-altitude ignition by improving the transient behavior of the initial combustion chamber pressure rise. The nozzle cap also provides the additional benefit of …
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Development Of Design Equations For A Square-tube Subbase Supporting A Shaft-mounted Speed Reducer
… tube thickness, mounting strap width, and end cap thickness. Developing design equations by analytical methods is investigated first. Next, finite element models are used to check the analytical results for accuracy. Finally, finite element models are used to perform design sensitivity …
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Simulation of the ATLAS ITk strip endcap modules for testbeam reconstruction and analysis
… testing the sensors in testbeams. The ITk strip end-cap sensors will use radial geometries, however the current testbeam telescope simulation software (AllPix) and reconstruction software (EUTelescope) are designed with cartesian geometries. Presented is the work behind implementing a radial …
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Investigation of performance and the influence of environmental conditions on strip detectors for the ATLAS Inner Tracker Upgrade
… four layers in the barrel and six disks in the end-cap region will host strip modules, built with single-sided strip sensors and glued-on hybrids carrying the front-end electronics necessary for readout. The strip sensors are manufactured as n-in-p strip sensors from high-resistivity silicon, …
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Pharmacological investigations into matrix metalloproteinase-activated anti-tumour prodrugs. In vitro metabolic and pharmacological investigations into a series of colchicine-based peptide prodrugs activated by tumour-expressed matrix metalloproteinases
… acid sequence with dominant FITC N-terminal end cap. All prodrugs were conjugated to a colchicine derivative (ICT 2552) which is a vascular disrupting agent causing tumour vasculature shutdown and consequently, tumour necrosis. ICT 3146, ICT 3019, ICT 3120 and ICT 3115 prodrugs showed …
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Studies of the cationic polymerisation of vinylic and energetic cyclic ether monomers
… This shows the molecular weight achieved depends on a combination of factors including -OH concentration, addition rate of monomer and, most importantly, temperature. A lower temperature and OH concentration tends to produce higher molecular weight, whereas, slower addition rates of monomer, …
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Mechanophore activation at heterointerface and surface crowdedness as a determining factor
… the cleavage of the polymer with an anthracene end-cap. UV diode-array detector coupled gel permeation chromatography was used to confirm the selective cleavage of anthracene-containing polymer and to rigorously quantify the kinetic coefficient of mechanochemical reaction. Comparison with …
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Design of a Linear Ultrasonic Piezoelectric Motor
… elements connected to the center ground. End caps were added between the frame and the piezoelectric elements to reduce the stress of the elements. Legs located at the bottom of were used to increase the rigidity. Several FEM programs were written to design the motor and to predict its …
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Construction of the CMS tracker end-caps and an impact study on defects
… test of substructures, so called petals, for the end caps of the tracker. The petals were assembled in a clean room and underwent first basic tests to ensure the general operationability of each component. Failures detected during the assembly are described and improvements of the silicon strip …
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Development of a test system for the quality assurance of silicon microstrip detectors for the inner tracking system of the CMS experiment
… silicon sensors, the readout electronics (front end hybrid), and a support frame. It will provide a total active area of 198 m2 and ten million analogue channels read out at the collider frequency of 40 MHz. This large number of modules to be produced and integrated into the tracking system is an …
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3D Electromagnetic Simulation Tool Exposure for Undergraduate Electrical Engineers: Incorporation Into an Analog Filters Course
… semi-rigid coaxial cable, and copper plumbing caps.</p> <p>From these guidelines, three electronic bandpass filter experiments were investigated: a 1 GHz half-wave coaxial resonator filter, a 2 GHz copper end cap filter, and a tunable 1 GHz quarter-wave coaxial resonator filter. Electric and …
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STRUCTURE, DYNAMICS AND RHEOLOGY OF SURFACTANT MICELLES AND MICELLE-NANOPARTICLE SOLUTIONS: A MOLECULAR DYNAMICS STUDY
… to develop theoretical/computational frameworks capable of describing their thermodynamics, self-assembly and phase behavior. The goals of this thesis are to uncover mechanisms by which WLMs interact with colloidal particles and to determine how these interactions affect the macroscopic …
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