The shell weight and abundance of planktonic foraminifera, together with seawater parameters, collected from area off the Southern Taiwan were analyzed in this study. Plankton tows were conducted between April 2006 and December 2011 at water depths of 50, 100, 150, and 200 m. In addition, five sediment trap moorings and one box core were sampled at the same area. Globigerinoides sacculifer was picked for counting numbers and measuring weight from towed samples and core sediments. For seawater samples, dissolved inorganic carbon was analyzed. The age model of sediment core was determined based on the excess lead-210. The seasonal variation of planktonic foraminifera abundance is not obvious in the Gao-ping submarine canyon regime. The shell abundance decreases as the depth increases. Furthermore, the relationship between shell abundance and lunar cycle can be observed from the sediment trap moorings. Shell abundance reaches its maximum before full moon. The sea surface is dominated with larger shells at night than daytime. Shell abundance and size are closely related with the optima growth environmental parameters than anything else. The foraminiferal shell weight is not so different between winter, summer, and autumn. But in spring the shell weight is the lightest among all. Based on the foraminiferal shell weight and the corresponding seawater carbonate ion concentration obtained from this study, it is not easy to explain the relationship between both. Shell weight in downcore record was lighter after A.D. 1890, which probably was caused by the acidification of seawater resulted from the increase of CO2 in the atmosphere.

The thesis aims to investigate the golf swing dynamic behaviors by a suitable computer simulation. The FEM analysis software DYNA was used to analyze the golf swing motion. The swing model was made by driving moment at two revolving joints to provide torque of golf swing. The point is to set the model under the three-dimension gravity field to analyze the influences of club head speed, loft angle, lie angle and stresses in the shaft caused by different shaft flexes and club head weights. Form the finding of the study, the dynamic response and the shaft flex play important parts in swing motion. Comparing the results of the experiments of other research, the relationship among swing motion factors and their dynamic responses were conducted. It is believed that this thesis will provide some reliable computer stimulation data for the reference in sport science.

We introduce the process of the development in the Nuclear Structure Model, the Quantum Theory of the Projected Shell Model and the improvement of the calculating program. Besides we deal with the high-spin superdeformed phenomena. By using the PSM_EO program, the Projected Shell Model is applied to the odd (even-odd) mass nuclei Tb , including 145Tb ,147Tb ,149Tb and 151Tb . The results of theoretical calculations about the transition energy E£^, kinetic moment of inertia J(1) and dynamic moment of inertia J(2) are compared with experimental data to verify the meaning in Physics.

Cross sections for K-shell ionization by heavy ions have been determined from the measurements of target K x-ray yields. The measurements were performed with Ar, Kr, and Xe ions at energies from 2.5 to 25 MeV/amu and self-supported metallic foil targets of Al, Ti, Cu, Zr, Ag, Sm, and Ta. The x-ray yields were measured with a Si(Li) detector, while the projectile ions were counted in coincidence with the x-rays using a plastic scintillation detector. In addition, the amount of secondary K-shell ionization and the degree of simultaneous L-shell ionization in primary K-shell ionizing collisions were assessed by performing high-resolution x-ray measurements on targets of Al, Ti, V, Co, and Cu with a curved crystal spectrometer. The results of the high resolution measurements revealed that the apparent average Lshell spectator vacancy fraction at the time of Kα x-ray emission, L p , may be represented by a universal function of the Geometrical Model’s parameter X for Z2 = 17 - 32. Multiple-vacancy Kα fluorescence yields and corrections for K-shell ionization by secondary processes were determined with the aid of the high resolution spectra for the targets Al, Ti, and Cu. Fluorescence yields for the other targets were determined using an extrapolation procedure. The resulting K-vacancy production cross sections for 2.5 to 6 MeV/amu projectiles were compared with a limited amount of available experimental data and shown to be in relatively good agreement. The ECPSSR predictions for all the targets except Al agreed reasonably well with experimental cross sections for Ar projectiles. The experimental cross sections for Kvacancy production in Al, Ti, Cu, Zr, and Ag were greatly deviated from the ECPSSR predictions. The cross sections for Kr on Sm and Ta were in good agreement with theory. The scaling properties of the Kα x-ray production cross sections were examined and a semiempirical “universal” curve was deduced that reproduces the measured cross sections to within ±30% on average. The relationship between the Kα x-ray production cross sections and the geometrical model’s universal variable also was examined.

Thesis (Ph. D.)--Florida State University, 2004. / Advisor: Dr. Samuel L. Tabor, Florida State University, College of Arts and Science, Department of Physics. Title and description from dissertation home page (viewed June 16, 2004). Includes bibliographical references.

Semiconductor nanowire field-effect transistors (NWFET) have been recognized as a possible alternative to silicon-based CMOS technology as traditional scaling limits are neared. The core-shell nanowire structure, in particular, also allows for the enhancement of carrier mobility through radial band engineering. In this thesis, we have evaluated the possibility of electron confinement in strained Si-Si1-xGex core-shell nanowire heterostructures. Cylindrical strain distribution was calculated analytically for structures of various dimensions and shell compositions. The strain-induced conduction band edge shift of each region was found using k•p theory coupled with a coordinate system shift to account for strain. A positive conduction band offset of up to 200 meV was found for a Si-Si0.2Ge0.8 structure. We have also designed and characterized a modulation doping scheme for p-type, Ge-SiGe core-shell NWFETs. Finite element simulations of hole density versus radial position were done for different combinations of dopant position and concentration. Three modulation doped nanowire samples, each with a different boron doping density in the shell, were grown using a combined vapor-liquid-solid and chemical vapor deposition process. Low temperature current-voltage measurements of bottom- and top-gate samples indicate that hole mobility is limited by the proximity of charged impurities. / text

The Harris site (A.D. 500-1000) is an unusual Mimbres site because it has a Late Pithouse period component with no overlying Classic period pueblo. The excavations by the University of Las Vegas-Nevada (UNLV) were conducted at this site between 2007 and 2013. Shell artifacts, and their role in the Mimbres area, have not been extensively studied. I analyzed shell data from the UNLV field school, combined with Haury's excavated shell assemblage from his work at the site in the 1930's to interpret the role of shell at the Harris site. More specifically, I look at the role shell may have played in the ritual life of Mimbres society. Using context, artifact form, and co-occurring assemblage materials illuminates how shell was used in ritual practice. My methodology includes recording specific information about the shell, including, but not limited to: context, condition (i.e., burnt vs. unburnt), description, measurements, artifact form, genus, and species if the shell is identifiable to that degree. Using this methodology allows me to observe patterns and infer whether specific artifact forms and/or genera correlate with certain contexts. Observing these patterns, I seek to observe the ritual practices in which shell was incorporated. I use Bell (1992, 1997) and Bradley’s (2010) framework on ritual, which posits that ritual-like behavior has marked characteristics and occurs in a variety of quotidian and sacred contexts, which suggests a continuum rather than a dichotomy in the use of these spaces. To further understand the use of shell in ritual practices, looking at spatial and diachronic data is imperative. Therefore, five other sites along the Mimbres River have been chosen for comparison. These sites include Pithouse and Classic period components. This comparison allows me to investigate how shell use changed over time in the Mimbres region. The comparative sites include: NAN Ranch (A.D. 600/650-1150), Mattocks Ruin (A.D. 750/800-1130), Galaz Ruin (A.D. 550-1130), Swarts (A.D. 950-1150), and the Old Town site (A.D. 750-1150).

Στην παρούσα διδακτορική διατριβή μελετήθηκε η βιολογία του είδους Ruditapes decussatus (Linnaeus, 1758) από τη λιμνοθάλασσα του Αράξου και το εκβολικό σύστημα του Ευήνου. Ο στόχος της μελέτης ήταν η βαθύτερη γνώση της βιολογίας του R. decussatus στα δύο ελληνικά οικοσυστήματα, η οποία δύναται να συμβάλει τόσο στην ορθολογική αλιευτική του διαχείριση, όσο και σε μια ενδεχόμενη συστηματική καλλιέργειά του στην Ελλάδα. Για το σκοπό αυτό πραγματοποιήθηκαν τυχαίες δειγματοληψίες σε δεκαπενθήμερη βάση επί τρία χρόνια. Τα αποτελέσματα έδειξαν ότι οι δύο πληθυσμοί διαφέρουν σε σημαντικό βαθμό σε ό,τι αφορά την αύξηση και τη θνησιμότητα, ενώ οι διαφορές στην αναπαραγωγική τους συμπεριφορά είναι μικρότερης έκτασης. Ειδικότερα ο πληθυσμός στη λιμνοθάλασσα του Αράξου εμφανίζει άριστα χαρακτηριστικά αύξησης και αναπαραγωγής, ενισχύοντας την άποψη ότι μια απόπειρα εντατικής καλλιέργειας του είδους στη χώρα μας θα στεφόταν με επιτυχία. Επίσης αποκομίστηκαν σημαντικά συμπεράσματα που αφορούν την ηθολογία του είδους και τη συμπεριφορά του σε καταστάσεις κινδύνου. / In the present doctoral thesis we studied the biology of two populations of the bivalve Ruditapes decussatus, one located in the lagoon of Araxos and the other in the estuary of Evinos River. The objective of the study was the use of the results in order to contribute in the species’ rational and successful management and in the development of an aquaculture industry in Greece. For this aim species were randomly sampled every two weeks in a three-year period. The results showed that the two populations differ significantly regarding increase and mortality, while the differences in their reproductive behaviour are less important. Specifically the population in the lagoon of Araxos shows excellent characteristics regarding increase and reproduction, supporting the opinion that an attempt of intensive culture of this species in our country would be crowned with success. Also we obtained important informations that concern the ethology of the species and its behavior in stress situations.

No description available.

The quantification of population and mortality data for insect pests of apple is necessary if we are to gain fundamental insight in the dynamics of insect populations of the orchard ecosystem. The need to quantify has recently been emphasized (LeRoux, 1964a; 1964b) and the greater application, practical and scientific, or the quantitative results obtained for agricultural and forest insect pests has been demonstrated (LeRoux et al., 1963). [...]