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 52 for “"Caesium"”.
-
Caesium and strontium exchange at specific clay mineral sites
The sorption of caesium and strontium onto clay minerals by exchange with other, charge compensating cations was studied by batch experiments. It was demonstrated that, for clay minerals with a net negative charge arising from isomorphous substitution within the crystal lattice, caesium and …
-
A new apparatus for experiments with Caesium Bose-Einstein Condensates
… condensates (BECs) of spin-polarised caesium-133 atoms. Caesium condensates offer excellent control over interatomic interactions due to the rich landscape of low-field magnetic Feshbach resonances, which enables the study of quantum gases in attractive and repulsive interaction …
-
Propulsion of polymer particles on caesium ion-exchanged channel waveguides for stem cell sorting applications
… characteristics have been fabricated using caesium ion-exchange process on soda-lime substrates. The propulsion of polymer particles has been achieved and characterised against different optical parameters, waveguide conditions and particle’s characteristics on different surfaces. The …
-
A quasi-electrostatic trap for neutral atoms
… (QUEST) fuer neutrale Atome realisiert. Caesium und Lithium wurden gemeinsam gespeichert und damit erstmals die Mischung verschiedener Spezies in einer optischen Dipolfalle demonstriert. Die Falle wird durch den Fokus eines CO2-Laser Strahls mit 30 W Dauerstrich-Leistung und nahezu …
-
A tuneable quantum gas for matter wave interferometry and soliton experiments
… in which we employ Bose-Einstein condensates of caesium atoms. Caesium provides favourable scattering properties due to a rich spectrum of magnetic Feshbach resonances at low fields. In particular, we take advantage of the tunability of the interaction strength to implement experiments to study …
-
An x-ray scattering study of surfactant water mixtures
… the mesophases exhibited by two sample systems, caesium pentadecafluorooctanoa-te (CsPFO) / heavy water, and decylammonium chloride / ammonium chloride / heavy water, and their dependence on temperature and composition. The results obtained are discussed with relatIon to inter- and intra-micellar …
-
Experimental demonstration of high-fidelity entanglement via Rydberg blockade
… with the deterministic preparation of two caesium atomic qubits in a maximumly entangled Bell state.The experiment presented achieves low error readout of two single atoms held in optical tweezers using new imaging technology as an alternative to what is typically used in the field, …
-
The biochemical analysis of mucus and mucins in respiratory diseases with a focus on tuberculosis
… by density gradient ultracentrifugation in caesium chloride. Identification of MUC5AC, MUC5B, MUC2 and MUC7 were determined by western blotting and confirmed by immunohistochemistry. Western blot data proved the dominance of MUC5AC and MUC5B mucins in airway mucus. In comparison to the …
-
The barrier functions of the cervical mucus plugs and purified mucins against a panel of HIV-1 strains in the contexts of cell-free and cell-to-cell infections
… and lyophilized. The mucins were purified by caesium chloride density gradient ultracentrifugation and size exclusion chromatography, dialysed against distilled water and lyophilized. The lyophilized samples were reconstituted in cell culture medium and used in cell viability assays, after …
-
Theoretical Investigation of Two-Color, Two-Photon, 6s(2)S(1/2) → 5d(2)D(j) → 11p(2)P(3/2) Excitation and Depolarization Spectra in Atomic Cesium
… transition in atomic caesium is considered. For quadrupole-dipole transitions the dependence of excitation from the ratio of reduced matrix elements is shown. The experimental method of determination of the value and sign of the ratio is proposed. Comparison of results …
-
An innovative portable detector for the live-monitoring of radionuclides in small terrestrial animals
… 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 optimised …
-
Vibrational studies of tetrahalogenocuprates (II)
… associated with the vibrational spectrum of caesium tetrachlorocuprate(II) were critically discussed. A unit cell analysis of the compound was performed with two primary objectives: (A) to interpret the vibrational spectrum; and (B) to develop a competent model force field for such study. The …
-
An investigation of the combined use of cation exchange enrichment and spectrochemical analysis for the determination of trace constituents in common silicate rocks and chondrites
… for determining trace constituents (particularly caesium and the rare earths) in common igneous rocks and chondritos. Cation exchange chromatography with hydrochloric acid elution was employed to resolve the complex mixtures obtained from rocks and meteorites into a number of fractions in which …
-
Ion diffusion from Sellafield OPC paste formulations
… thesis evaluates the diffusivity of strontium, caesium and cobalt when added as inactive forms to BFS:OPC and PFA:OPC formulation as their chlorides and for strontium when added as chloride and carbonate. The cylindrical cement paste samples (CPS) having diameter of 3.2 cm and height 5.3 cm were …
Page 1 of 3