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 164 for “"radionuclides"”.
-
Deportment of radionuclides in copper concentrate from Olympic Dam
… interest to process engineers are daughter radionuclides (RNs) created from decay of ²³²th, ²³⁵U, and especially ²³⁸U. Specific activities of ²²⁶Ra, ²¹⁰Pb, and ²¹⁰Po are such that even concentrations of parts-per-trillion may be above acceptable levels for marketable copper concentrate. Most …
-
Protein engineering for targeted delivery of radionuclides to tumors
Traditional cancer treatment strategies include systemic chemotherapy, external beam radiation, and surgical excision. Chemotherapy is nonspecific, and targets all rapidly dividing cells. External beam radiation and surgery only target known cancer sites. However, targeted therapeutics, such as …
-
OPTIMIZATION OF THE PRODUCTION OF TERBIUM RADIONUCLIDES FOR THERANOSTIC APPLICATIONS
… for future clinical applications of terbium radionuclides in theranostics, potentially overcoming existing production limitations and expanding their use in personalized cancer treatment.
-
Detection of environmental pollution (radionuclides and heavy metals) using microorganisms.
Radionuclide and heavy metal pollutants are a major concern for the environment nowadays as thousands of waste sites around the world pose a serious threat to all living organisms and humans in particular. In order to find an effective technique for the detection of these pollutants and their …
-
Dose coefficients for radionuclides produced in a spallation neutron source
… values have been calculated for 14 anthropogenic radionuclides which are not currently presented in Federal Guidance Reports No. 11, 12, and 13 or Publications 68 and 72 of the International Commission on Radiological Protection. Internal dose coefficient values are reported for inhalation and …
-
Non-intrusive assessment of radionuclides in enclosed pipes and vessels
The assessment and cleanup of various nuclear sites throughout the country has become an increasingly important issue. Methods for assessment of radioactive material within pipe and duct systems at these sites must be cost effective, efficient, and safe. Several tests were conducted at the …
-
Environmental transfer of radionuclides in a Sub-Saharan Africa setting
… the present study focuses on environmental radionuclides transfer in SSA and evaluates the extent to which the current generic transfer parameters derived from international data compilations are applicable in a SSA setting.A systematic review of literature on radionuclide and stable element …
-
DISORDERING IN PYROCHLORE PHASES FOR RADIONUCLIDES DISPOSAL: A MULTISCALE STRUCTURE STUDY
… have drawn much attention in the field of radionuclides immobilization. The Gd2Zr2O7 composition, in particular, has demonstrated high radiation resistance, making it an ideal host-matrix for encapsulating radioactive elements within the crystal structure. Despite the average structure, …
-
Aqueous and solid phase interactions of radionuclides with organic complexing agents
… geochemistry and speciation of major contaminant radionuclides is crucial in order to understand their behaviour and migration in complex environmental systems. Organic complexing agents used in nuclear decontamination have been found to enhance migration of radionuclides at contaminated sites; …
-
In-situ monitoring of groundwater radionuclides with emphasis on tritium detection
This thesis is concerned with the detection of low energy beta emitting radioisotopes from a source of groundwater, with particular emphasis on tritium (3H). This is investigated firstly through an understanding of the challenges of detecting tritiated water, which involves the use of Monte Carlo …
-
Mathematical Modelilng of the Release of Radionuclides from Hemispherical Glass Blocks
Made available in DSpace on 2017-07-06T18:55:49Z (GMT). No. of bitstreams: 3 Pescatore_Claudio_MS.pdf: 18503419 bytes, checksum: 2aac3f5be8aab278d6843561c6a5f1e9 (MD5) Pescatore_Claudio_MS_ABS.pdf: 428415 bytes, checksum: 2e22209062a752743225e60ef889f7aa (MD5) license.txt: 4813 bytes, checksum: …
-
The migration and accumulation of radionuclides in the Ravenglass saltmarsh, Cumbria, UK
… from the Ravenglass saltmarsh and the same radionuclides were measured to study the lateral distribution of radionuclides. Three of the Ravenglass cores have well preserved the history of Sellafield discharge since the plant became operational in 1952. There are no significant post …
-
Leak detection in power plant heat recovery steam generators utilizing medical radionuclides
… gas stack. This thesis examines if medical radionuclides injected into the boiler feedwater could be detected in the low pressure gas exhaust stream during the early propagation of a boiler tube leak site.
-
The mineralogical deportment of radionuclides in South Australian Ca-Au-(U) ores
… for copper production. The presence of daughter radionuclides (RN) from the 238U decay series within the ores necessitates a detailed understanding of their mineralogical deportment as a pre-requisite for attempts to remove or reduce RN concentrations. Research presented in this thesis …
-
Accumulation of sediment and radionuclides in tidal marshes of the Murderkill River Estuary, Delaware
… delivered to the marsh. Downcore profiles of the radionuclides 210Pb and 137Cs were used to determine sediment accumulation and marsh accretion rates, to develop chronologies for the sediment column, and also as indicators of sediment transport pathways within the marsh. In addition, an historical …
-
An innovative portable detector for the live-monitoring of radionuclides in small terrestrial animals
… measurement of both gamma and beta emitting radionuclides (caesium-137 and strontium-90 are tested in this work) in living small animals. Literature on detector characteristics and radionuclides in the environment informed a modelling approach that was used to optimise the detector design. …
-
The Use of Radionuclides to Identify Vulnerable Fractured and Karst Bedrock Aquifers in Eastern Ontario
… the samples and quantify the presence of the radionuclides in cps and cps/g. The spectral data indicate no significant difference in the activities of ²¹⁰Pbₑₓ among samples, but a significant difference in the activities of ¹³⁷Cs was observed between surface soil samples and well-bottom …
-
The Aquatic Geochemistry of the Particle-Reactive Radionuclides PO-210, PB-210, and BE-7
… removal behaviors of two atmospherically-derived radionuclides, Pb-210 and Be-7, have been examined in real-time following their deposition to a shallow coastal bay by four precipitation events. In general, there was a marked elevation in the water column concentrations following a precipitation …
-
A new liquid scintillation counting technique to resolve mixtures of two pure beta-emitting radionuclides
… of dual-label solutions of pure β-emitting radionuclides are mostly time consuming and involve much effort. The goal of this thesis was therefore to devise a simpler method to achieve the same objective. The technique developed is based on elements of two liquid scintillation counting …
-
Radioimmunotherapy of Metastatic Disease - Studies of Alpha- and Beta-particle-Emitting Radionuclides in a Preclinical Model
… agent carrying a toxic payload consisting of radionuclides. This treatment allows the irradiation of small lesions, even on the microscopic level. In the present work, two radionuclides with different properties were used. Lutetium-177 (177Lu) is a beta-particle-emitting radionuclide (t½=6.7 …
Page 1 of 9