One of the common failure modes of thin cylindrical shell subjected external pressure is buckling. The buckling pressure of these shell structures are dominantly affected by the geometrical imperfections present in the cylindrical shell which are very difficult to alleviate during manufacturing process. In this work, only three types of geometrical imperfection patterns are considered namely (a...

 In 2007 and 2008, the influence of pollen source on the shell and kernel traits of resulting seeds and on fruit set was examined to evaluate the potential for Xenia or Metaxenia in Persian walnut. Pistillate flowers of ‘Jamal’, ‘Chandler’, ‘Hartley’ and ‘Pedro’ were crossed with the pollen of ‘Serr’, ‘Z60’ and ‘Damavand’. The pistillate flowers on each female parent were covered about one week...

many studies are performed by researchers about shell and tube heat exchanger but the multi-objective big bang-big crunch algorithm (mobba) technique has never been used in such studies. this paper presents application of thermal-economic multi-objective optimization of shell and tube heat exchanger using mobba. for optimal design of a shell and tube heat exchanger, it was first thermally model...

introduction: the role of different parts of the extended amygdala in metabolic signs of stress is not well understood. in the present study, we decided to evaluate the impact of the shell part of nucleus accumbens (nac) on metabolic disturbance induced by electro foot shock stress using transient inactivation method in the rat.  methods: male wistar rats (w: 230-250 g) were canuulated unilater...

objective: prostate cancer is the second most common cancer worldwide. chemotherapeutic agents have been shown to have adverse side-effects, and natural compounds have been recommended for cancer treatment, nowadays. crab shell has been shown to have cancer preventative and suppressive effects in vivo and in vitro. the aim of present study was to investigate the effect of crab shell extract on ...

The aim of this paper is to develop a self-actualizing spirituality model. It examines the place of selfactualization in the experience of workplace spirituality of Sri Lankan business leaders. The primary method of data collection was in-depth and face-to-face interviews with 13 Sri Lankan business leaders. Within the qualitative tradition and case study method, grounded theory and data triang...

This is to certify that I have examined this copy of a master's thesis by Nicole Hackman and have found that it is complete and satisfactory in all respects, and that any and all revisions required by the final examining committee have been made. Date: __________________________________ In presenting this thesis in partial fulfillment of the requirements for a master's degree at the University ...

A new type of turtle egg fossil was established: Emydoolithus laiyangensis oogen. et oosp. nov.. Based on its elliptical morphological shape, rigid eggshells, and eggshell characteristics, it is different from other types of round chelonian egg fossils. It is the second chelonian egg fossil found in Cretaceous in China. This discovery shows the Laiyang ecosystem in Late Cretaceous is more diver...

ARON WELLER,1 LUDMILA TSITOLOVSKYA,1 IRIS H. GISPAN,1 AND GERARD P. SMITH2 1Developmental Psychobiology Laboratory, Department of Psychology, Bar Ilan University, Ramat Gan 52900, Israel; and 2Department of Psychiatry, Joan and Sanford I. Weill Medical College of Cornell University and E. W. Bourne Research Laboratory, New York-Presbyterian Hospital, Westchester Division, White Plains, New York...