The distribution of p+ Gamow-Teller strength in 26Mg, 54Fe and 56Ni is calculated in the QRPA and large-basis shell-model spaces. The quenching relative to the simplest jj coupled model found in the QRPA is similar to that found in a shell-model basis which includes 2p2h ground-state correlations within the major shell (sd or pf). For 26Mg there is significant additional quenching found in the ...

This paper provides analytic solutions for the dynamics of a pressurized elastoplastic thin-walled tube at small strains. The closed-form expressions stress and displacement fields are derived within framework thin cylindrical shell theory. Three dynamic load-processes considered: an increasing-constant internal pressure, rectangular triangular pulse loads. It is found that, depending on extern...

In the present paper a sensitivity analysis has been carried out concerning charging/discharging time and stored energy performances of shell-and-tube LHTES with respect to number tubes tube internal radius. The aim this is investigate how design variables affect performance. could lead determine thermal storage optimal design. Thus, key role in selection several acceptable solutions. considere...

Light-sheet fluorescence microscopy (LSFM) with single light-sheet illumination enables rapid 3Dimaging of living cells. In this paper we show the design, fabrication and characterization a diffractive optical element producing several light sheets along an inclined tube for applications in flow-driven imaging. The element, which is based on multi-focal Fresnel zone plate linear grating, genera...

Abstract Residual stresses in an unloaded configuration of elastic material have a significant influence on the response from that configuration, but effect residual stress stability material, whether loaded or unloaded, has only been addressed to limited extent. In this paper we consider level can be supported thick-walled circular cylindrical tube non-linearly without loss when subjected fixe...

The Porous Tube Plant Nutrient Delivery System (PTPNDS), a hydrophilic, microporous ceramic tube hydroponic system designed for microgravity, will be tested in a middeck locker of the Space Shuttle. The flight experiment will focus on hardware operation and assess its ability to support seed germination and early seedling growth in microgravity. The water controlling system of the PTPNDS hardwa...

Imploding toroidal detonation waves were used to initiate detonations in propane–air and ethylene–air mixtures inside of a tube. The imploding wave was generated by an initiator consisting of an array of channels filled with acetylene–oxygen gas and ignited with a single spark. The initiator was designed as a low-drag initiator tube for use with pulse detonation engines. To detonate hydrocarbon...

Centrioles are microtubule-based cylindrical structures that exhibit 9-fold symmetry and facilitate the organization of centrosomes, flagella, and cilia [1]. Abnormalities in centrosome structure and number occur in many cancers [1, 2]. Despite its importance, very little is known about centriole biogenesis. Recent studies in C. elegans have highlighted a group of molecules necessary for centri...

Introduction: Well type ionization chamber is a measuring device which is used to determine the activity of brachytherapy sources. The chamber has a cylindrical volume in which a cylindrical tube is mounted in the middle of the chamber. For the measurements, the brachytherapy sources are transferred to the middle of the tube. Materials and Methods: For designing the well type chamber, the measu...

In response to our incomplete understanding of how the 3-D geometry of the lips should be modeled in 2-D area functions, we present some measurements made on simplified physical models of the vocal tract. Our main result is that it is possible to match the formant pattern of a notched tube with that of an unnotched tube provided that an increment is added to the length of the unnotched tube. Th...