Guidance, flight mechanics and trajectory optimization. Volume 12 - Relative motion, guidance equations for terminal rendezvous

Equations of relative motion and guidance for orbital transfer and docking maneuvers in spacecraft rendezvou

Guidance, flight mechanics and trajectory optimization. Volume 11 - Guidance equations for orbital operations

Mathematical formulation of guidance equations and solutions for orbital space mission

Guidance, Flight Mechanics and Trajectory Optimization. Volume 15 - Application of Optimization Techniques

Pontryagin maximum principle, calculus of variations, and dynamic programming optimization techniques applied to trajectory and guidance problem

Guidance, flight mechanics and trajectory optimization. Volume 6 - The N-body problem and special perturbation techniques

Analytical formulations and numerical integration methods for many body problem and special perturbative technique

On board the USS Mason: the World War II diary of James A. Dunn

(print) xxxix, 130 p. : ill., map ; 23 cmHistorical introduction / John Sibley Butler -- Preface -- Introduction -- 1. The first crossing of the Atlantic: June 14-July 25, 1944. p.5 -- 2. Hunter-killer: July 26-September 1, 1944. p.26 -- 3. The raging sea: Convoy N.Y. 119: September 19-November 5, 1944. p.32 -- 4. Returning to America: November 6-November 22, 1944. p.57 -- 5. To Oran, Africa, and back: December 18, 1944-February 11, 1945. p.65 -- 6. To Oran again: February 12-March 7, 1945. p.76 -- 7. Returning to New York City: March 8-March 26, 1945. p.90 -- 8. A final trip to Oran: April 3-May 7, 1945. p.100 -- 9. Coming home at last: May 8-May 23, 1945. p.118 -- Afterword: on land. p.127 -- Bibliographic note. p.12

Agricultural Field Robotics for Plant Data Acquisition

As the demand for food increases, we are presented with the challenge of producing food more efficiently. With the help of agricultural robots it will be possible to achieve greater yields by the application of seeds, fertilizers and chemicals in the most efficient way possible. With more advanced robotic systems accurate crop data can be obtained to improve farming products and techniques. Flex-Row is a medium sized agricultural robotic platform built for autonomously traversing through rough fields during multiple crop growing stages. This platform consisting of a flexible frame with the ability to vary both width and height will initially be implemented with sensors to monitor production plants throughout the growing season. Furthermore, the robot will perform low draft applications such as spraying. The intended goal for this project is to develop a tele-operated platform that can be automated in the future. Inter-Row is a much smaller robot designed specifically for plant data acquisition. Tall height is not needed as it individually scans each plant a few cm from the base of the plant. The robot will help eliminate the need for manual labor when counting number of plants per row, which is beneficial on a large acreage field. Advisor: Dr. Santosh K. Pitl

Feminist Success Stories - Célébrons nos réussites féministes

Abuses by international corporations, withdrawal of social services and implementation of regressive legislation continue to impoverish women and reduce the quality of their everyday lives: women have reason to be demoralized. Recognizing this challenging and difficult situation, this volume reviews women's successes at feminizing Canadian institutions. It is intended to hearten the women's movement, and show the potential for feminist change and suggest ways to realize this potential

STAMP alters the growth of transformed and ovarian cancer cells

<p>Abstract</p> <p>Background</p> <p>Steroid receptors play major roles in the development, differentiation, and homeostasis of normal and malignant tissue. STAMP is a novel coregulator that not only enhances the ability of p160 coactivator family members TIF2 and SRC-1 to increase gene induction by many of the classical steroid receptors but also modulates the potency (or EC₅₀) of agonists and the partial agonist activity of antisteroids. These modulatory activities of STAMP are not limited to gene induction but are also observed for receptor-mediated gene repression. However, a physiological role for STAMP remains unclear.</p> <p>Methods</p> <p>The growth rate of HEK293 cells stably transfected with STAMP plasmid and overexpressing STAMP protein is found to be decreased. We therefore asked whether different STAMP levels might also contribute to the abnormal growth rates of cancer cells. Panels of different stage human cancers were screened for altered levels of STAMP mRNA. Those cancers with the greatest apparent changes in STAMP mRNA were pursued in cultured cancer cell lines.</p> <p>Results</p> <p>Higher levels of STAMP are shown to have the physiologically relevant function of reducing the growth of HEK293 cells but, unexpectedly, in a steroid-independent manner. STAMP expression was examined in eight human cancer panels. More extensive studies of ovarian cancers suggested the presence of higher levels of STAMP mRNA. Lowering STAMP mRNA levels with siRNAs alters the proliferation of several ovarian cancer tissue culture lines in a cell line-specific manner. This cell line-specific effect of STAMP is not unique and is also seen for the conventional effects of STAMP on glucocorticoid receptor-regulated gene transactivation.</p> <p>Conclusions</p> <p>This study indicates that a physiological function of STAMP in several settings is to modify cell growth rates in a manner that can be independent of steroid hormones. Studies with eleven tissue culture cell lines of ovarian cancer revealed a cell line-dependent effect of reduced STAMP mRNA on cell growth rates. This cell-line dependency is also seen for STAMP effects on glucocorticoid receptor-mediated transactivation. These preliminary findings suggest that further studies of STAMP in ovarian cancer may yield insight into ovarian cancer proliferation and may be useful in the development of biomarker panels.</p

Design and performance of ropes for climbing and sailing

Ropes are an important part of the equipment used by climbers, mountaineers, and sailors. On first inspection, most modern polymer ropes appear similar, and it might be assumed that their designs, construction, and properties are governed by the same requirements. In reality, the properties required of climbing ropes are dominated by the requirement that they effectively absorb and dissipate the energy of the falling climber, in a manner that it does not transmit more than a critical amount of force to his body. This requirement is met by the use of ropes with relatively low longitudinal stiffness. In contrast, most sailing ropes require high stiffness values to maximize their effectiveness and enable sailors to control sails and equipment precisely. These conflicting requirements led to the use of different classes of materials and different construction methods for the two sports. This paper reviews in detail the use of ropes, the properties required, manufacturing techniques and materials utilized, and the effect of service conditions on the performance of ropes. A survey of research that has been carried out in the field reveals what progress has been made in the development of these essential components and identifies where further work may yield benefits in the future