This special issue of ZAMP is published to honor Paul M. Naghdi for his contributions to mechanics over the last forty years and more. It is offered in celebration of his long, productive career in continuum mechanÂ ics; a career which has been marked by a passion for the intrinsic beauty of the subject, an uncompromising adherence to academic standards, and an untiring devotion to our profession. Originally, this issue was planned in celebration of Naghdi's 70th birthday, which occurred on 29 March 1994. But, as the papers were being prepared for the press, it became evident that the illness from which Professor Naghdi had been suffering during recent months was extremely serious. On 26 May 1994, a reception took place in the Department of Mechanical Engineering at Berkeley, at which Naghdi received The Berkeley Citation (which is given in lieu of an honorary degree) and where he was also presented with the Table of Contents of the present collection. SubseÂ quently, he had the opportunity to read the papers in manuscript form. He was very touched that his colleagues had chosen to honor him with their fine contributions. The knowledge that he was held in such high esteem by his fellow scientists brought a special pleasure and consolation to him in his last weeks. On Saturday evening, 9 July 1994, Paul Naghdi succumbed to the lung cancer which he had so courageously endured.
Metastatic disease is the most lethal aspect of human malignancies, making the understanding and continued research of the process of metastasis a crucial step in treating cancer. The proposed book, entitled "Experimental and Clinical Metastasis: A Comprehensive Review" aims to provide a clear and extensive review of the clinical and experimental implications of metastatic disease. This work focuses on recent contributions to the field of metastasis, and will highlight crucial findings in the molecular understanding of disseminated disease as well as standard and personalized medicine currently being investigated in the clinic. Topics will include, among many, gene properties of metastatic cells, molecular mechanisms of tumour growth and spread, animal models of metastasis, and clinical implications, markers and treatment for metastatic disease. With the participation of worldwide experts in the field of oncology, from major academic and government centres, this book will provide a leading manual for the study of the metastatic process, from benchside science to bedside care. In this light, the proposed book will facilitate classroom learning for both medical and graduate students, as well as serve as a tool for physicians and researchers interested in the metastatic process. In addition, this book will include the latest advances in basic science as well as leading technologies and theories of targeting metastatic cells. Most importantly, not only will basic and clinical aspects be discussed, but furthermore, the translational aspect of research in metastatic diseases will be emphasized.
In subsea processing systems, oil industry increasingly demands accurate and stable continuous measurement of the percent water in crude oil production streams (watercut) over the entire 0 to 100% range. Differential Dielectric Sensors (DDS) have been developed as independent tools connected with multiphase meters for process management and composition measurement. DDS is unique in its use of very low noise and high sensitivity differential measurements between two identical sensors and the use of physics based models for multiphase flow characterization. Existing watercut tools predominantly depend on empirical data and correlations that are sensitive to fluid properties and therefore are limited in their general applicability. The main objective of this work is to develop appropriate mathematical models for the sensor. Finite Element Analysis (FEA) and experimental investigations have been conducted to validate the sensor analytical models. This study provides the scientists and engineers a powerful tool for process management and control in the oil industry.
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