In this lecture, we will consider how to transfer from one orbit, or trajectory, to another. One of the assumptions that we shall make is that the velocity changes of the spacecraft, due to the propulsive effects, occur instantaneously. Although it obviously takes some time for the spacecraft to accelerate to the velocity of the new orbit, this assumption is reasonable when the burn time of the rocket is much smaller than the period of the orbit. In such cases, the Av required to do the maneuver is simply the difference between the

 2.1 The concept of Green Chemistry  2.2 Promoting the development of Green Chemistry  2.3 Atom Economy of chemistry reaction  2.4 Atom Economy and environmental effects  2.5 Research area of green chemistry  2.6 Twelve principles of green chemistry References

1.1 Objectives of Subject 1.2 Related Subjects at MIT 1.3 Terminology 1.4 How Selected Tissues/Organs Function 1.5 Effects of Trauma and Disease on Function 1.6 Restoration of Function with Implants 1.7 Applications of Medial Devices and Examples Demonstrating the Successful and Unsuccessful Performance of Medical Devices/Implants 1.8 Design Considerations for Medical Devices and Non-medical Structures

《流体动力学》（英文版）displacement effects

Microbial Ecology: Microorganisms in soil, water, and other environments and how microorganisms act to chemically change their environments. Microbial ecologists study: the biodiversity of microorganisms in nature and how different guilds interact in microbial communities The activities of microorganisms in nature and monitor their effects on ecosystems

Chapter 4 Differential Relations For Viscous Flow 4.1 Preliminary Remarks Two ways in analyzing fluid motion (1)Seeking an estimate of gross effects over a finite region or control volume. Integral ()Seeking the point-by-point details of a flow pattern by analyzing an infinitesimal region of the flow

11. 4 PRANDTL-GLAUERT COMPRESSIBILITY CORRECTION The methods that approximately take into account of the effects of compressibility by correct the Incompressible flow results Is called compressible corrections

1. Why investors diversify their portfolios internationally. 2. How much investors can gain from international diversification. 3. The effects of fluctuating exchange rates on international portfolio investments. 4. Whether and how much investors can benefit from investing in U.S. based international mutual funds. 5. The reasons for \home bias\ in portfolio holdings

Teaching Objectives 1)understand the main idea(despite the many negative effects of virtual life the author prefers it to real life) and the structure of the text(contrast between virtual life and real life); -2)learn some rules of interpreting new vocabulary

have attempted to test Porters theory of generIc strategy and link it to performance, but the results vary. Simlarly, it is easy to believe that a firm cannot be successful without certain resources and/or apabilities Efforts have been made to test the resource-based theory and to ue capabilities to firm performance, again with varying results These two theories and related research streams have