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 28 for “"H/V"”.
-
Seismic site characterization using broadband and DAS ambient vibration measurements on Mt Etna, Italy
Both horizontal-to-vertical (H/V) spectral ratios and the spatial autocorrelation method (SPAC) have proven to be valuable tools to gain insight into local site effects by ambient noise measurements. Here, the two methods are employed to assess the subsurface velocity structure at the Piano delle …
-
1D shallow sedimentary subsurface imaging using ambient noise and active seismic data
The Earth’s shallow subsurface with sedimentary cover acts as a waveguide to any incoming wavefield. Within the framework of my thesis, I focused on the characterization of this shallow subsurface within tens to few hundreds of meters of sediment cover. I imaged the seismic 1D shear wave velocity …
-
Generating sequences and semigroups of valuations on 2 dimensional normal local rings
In this thesis we develop a method for constructing generating sequences for valuations dominating the ring of a two dimensional quotient singularity. Suppose that K is an algebraically closed field of characteristic zero, K[X, Y] is a polynomial ring over K and v is a rational rank 1 valuation of …
-
Propiedades biofísicas de esfingomielinas y ceramidas con ácidos grasos poliinsaturados de muy larga cadena
Los esfingolípidos de las células germinales y espermatozoides de mamífero son inusuales por contener una alta proporción de ácidos grasos poliinsaturados de muy larga cadena (VLCPUFA). En las gametas de rata, la esfingomielina (SM) y la ceramida (Cer) contienen especies con ácidos tetraenoicos y …
-
A Matrix Isolation Spectroscopic Investigation of the Reaction Products of Transition Metal Centres With Ethene and Water
The reaction products of thermally generated atomic V with ethene and ethene isotopomers have been investigated by matrix isolation ultraviolet visible and Fourier transform infrared (FTIR) spectroscopy. When V is deposited into matrices of pure Ar, evidence for V and V2 are present in the …
-
The Development and Validation of the Horizontal and Vertical Individualism and Collectivism Organizational Culture Scale
Very little research has been done at the interface between organizational culture (OC) and national culture (NC), despite the fact that the two concepts share much conceptual overlap. This study was designed to assess the possibility that OC can be measured using theoretical constructs parallel to …
-
Αστικό δίκτυο επιταχυνσιογράφων της Πάτρας (UPAN) : εγκατάσταση, ανάπτυξη βάσης δεδομένων και επεξεργασία καταγραφών
Το αντικείμενο της παρούσας Διδακτορικής Διατριβής ήταν η εγκατάσταση και λειτουργία ενός αστικού δικτύου επιταχυνσιογράφων (αστικό δίκτυο επιταχυνσιογράφων της Πάτρας, UPAN) στην παραθαλάσσια πόλη της Πάτρας (πληθυσμός: 160.400), καθώς και η επεξεργασία των σχετικών σεισμικών καταγραφών, με στόχο …
-
A physical metallurgy laboratory manual
With the rapidly increasing importance placed by industry upon the development, treatment, examination and testing of metals and their alloys, there follows increasing stress on sound fundamentale in metallurgical laboratory practice as employed by the student majoring in this field. Following a …
-
Evaluation of the clinical outcome of curvilinear transport distraction osteogenesis and revascularised fibula free flaps in the reconstruction of large post-maxillectomy defects
Background: Maxillary defects caused by trauma or tumour resection in the head and neck region can be devastating to the patient from a cosmetic and functional perspective. Patients who undergo maxillectomy procedures experience a substantial deterioration in their primary oral functions such as …
-
Characterization and site-directed mutagenesis of NifU from Azotobacter vinelandii
In order to elucidate the function of the nifU gene product in nitrogenase maturation in Azotobacter vinelandii. the gene product has been hyperexpressed in Escherichia coli and characterized by various biophysical techniques. Following the initial characterization, site-directed mutagenesis of …
-
Virðismargfaldarar S&P 500. Söguleg greining á núverandi margföldurum S&P 500 vístölunnar
Mikið hefur verið rætt um hækkanir á hlutabréfamörkuðum seinasta árið. Við slíkt heyrast iðulega raddir um hvort nú sé komin hlutabréfabóla. Markmið þessarar ritgerðar er að rannsaka virðismargfaldara S&P 500 vísitölunnar í sögulegu ljósi og kanna hvort þeir geti gefið fyrirheit um hvort …
-
Approaches to earthquake scenarios validation using seismic site response
A seismic hazard assessment was carried out for the Catania and Siracusa towns providing a comprehensive re-examination and re-processing of all the available seismic data. The site approach and the seismotectonic one were used and compared. The hazard assessment, using both methods, was performed …
-
Localización en dominios de membrana y biosíntesis de los esfingolípidos con ácidos grasos poliinsaturados de muy larga cadena de células espermatogénicas en diferenciación
El objetivo general de esta tesis fue contribuir al conocimiento de la fisiología del sistema reproductor masculino a través del estudio de cómo esfingolípidos que son específicos de las células espermatogénicas (o células germinales, CG) cambian con el avance de la maduración sexual y la …
-
Adaptive digital distance protection for series compensated transmission lines
Series capacitors offer considerable technical and economical advantages in long distance a. c. transmission. In particular, their excellent reliability and minimal maintenance requirements make series compensation the most cost effective method of enhancing the power transfer capability of an …
-
Investigating Ethical Decision Making in Marketing Research: An Exploratory Study Towards the Interaction of Different Moral Agents in Marketing Research
The premise of this study is the in-depth exploration and investigation of the nature of Ethical Decision Making (EDM) in marketing research. More specifically, this research is concerned with exploring the understanding and the holistic conceptualisation of Ethical Decision Making (EDM) through …
-
Biology of virulent and hypovirulent Endothia parasitica on American chestnut (Castanea dentata)
Results of inoculations of grafts, seedlings, excised stems, and intact trees of large, surviving American chestnut indicated that some have heritable blight resistance. Some degree of resistance in American chestnut possibly would assist spread of hypovirulence (H) factors. The pathogenicity of …
-
Velocity and Q from reflection seismic data
This study has resulted in the discovery of an exact method for the theoretical formulation of the effects of intrinsic damping where the attenuation coefficient, a(v), is an arbitrary function of the frequency, v. Absorption-dispersion pairs are computed using numerical Hilbert transformation; …
-
Track behaviour: the importance of the sleeper to ballast interface
The aim of this research is to develop a fuller understanding of the mechanical behaviour of the<br/>sleeper/ballast interface, related in particular, to the forces applied by high speed tilting trains on<br/>low radius curves. The research has used literature review, field measurements, and …
-
Y-family DNA polymerase architecture: three structural features control accurate deoxy CTP insertion opposite N2-deoxy-guanine-benzo-a-pyrene
Cells have lesion bypass DNA polymerases (DNAPs), often in the Y-Family, which synthesize passed DNA damage. One class of Y-Family DNAPs includes hDNAP k, EcDNAP IV and SsDbh, which insert accurately opposite N2-dG adducts, including BP-N2-dG formed from benzo[a]pyrene (BP). Another class includes …
-
Dual-specific protein phosphatases in the <i>Archaea</i>
Three distinct families of PTPs, the conventional (cPTPs), low molecular weight (LMW PTPs), and Cdc25 PTPs, have converged upon a common catalytic mechanism and active site sequence, mainly, the phosphate-binding loop encompassing the PTP signature motif (H/V)<b>C</b>(X)₅<b>R</b>(S/T) and an …
Page 1 of 2