5 questions Essay Example | Topics and Well Written Essays - 500 words

5 questions - Essay Example quilibrium† model for groups development in which a group’s progress is marked by two phases of stability—Phase I and Phase II—emphasized by abrupt changes at the project center point that occurs halfway to the deadline. There are number of factors that can positively or negatively affect cohesiveness; a few of these are number of employees, duration of time for task achievement and duration of time the group spent together, organization, external pressures, location and reputation of the group, closeness of supervision, and internal competitive behavior. For example large groups (with size more than 25 to 30 employees) may reduce the development of cohesiveness. The longer the duration for group development, the larger the cohesiveness. Outside pressures (of close supervision) could speed up development of cohesion. The higher the reputation, the more potential cohesiveness will evolve. Expressing the purpose in terms of specific goal increases the productivity over and above any performance benefits achieved through individual goal setting. A behavioral norm for high productivity and performance set over organizational norms qualifies high performing work groups. For example business revenues can be influenced by many factors such as market position, advertisement and price. Through advertisement a businessman express his purpose of increasing revenues and mostly advertisement increases the productivity (Daft & Marcic, 2010). Group would be most useful for this decision. Advantages of decision of a group include (1) More information and knowledge through the sharing of group member resources, (2) Number of increased commitment and acceptance to the decision, (3) Better apprehension of the decision. The time for a group to make a decision might how ever be longer. Given the uncertain and unstructured nature of this conclusion, a group would be more efficient. Advantages in a group decision-making situation are complete information and knowledge is

Wave-current interaction Essay Example | Topics and Well Written Essays - 750 words

Wave-current interaction - Essay Example These powerful and varied forces can wreak considerable damage on a wide variety of human activity, making â€Å"reliable prediction of wave motion in coastal areas †¦ crucial to coastal engineering applications associated with nearshore morphologic change and harbor/inlet maintenance †¦ In some areas, however, ambient tidal and other currents can be strong and their effect on wave transformation can be substantial. They create a Doppler shift and cause wave refraction, reflection and breaking, which can result in overall redistribution of wave energy† (Chen, Panchang & Demirbilek, 2005). An understanding of several key terms is necessary to the discussion. The term wave-current interaction is used to describe the various ways in which wave height, wave length and wave energy are affected when a wave encounters a current (French Research Institute for Exploitation of the Sea, 1998). â€Å"Wave height is the distance from a waves trough to its crest †¦ The crest is the top of an unbroken wave, the trough is at the bottom of the front of the wave† (Wave Basics, 2006). Wave length is generally accepted to mean â€Å"the distance in a periodic wave between two points of corresponding phase in consecutive cycles† (Stewart, 2005) or a measurement of â€Å"the length between the top point of one wave, and the top of the next† (Explaining Waves, 2005). Wave energy can be explained as a concentrated form of solar energy as swells are created by the interaction of wind on the water surface, transferring solar energy to the water (Ocean Wave Energy, 20 05). Prediction of these wave motions are made complicated with the introduction of refraction, reflection and breaking. Refraction is â€Å"a process in which the wave crests tend to parallel the depth contours† (Coastal Change, 2003) upon entering shallow waters. â€Å"The reflection of