1. A circulation system for a body of water, said system including a flotation platform extending about a substantially vertical first axis, a dish, an impeller, and a drive motor operably connected to the impeller, said system further including at least one solar panel for supplying power to the drive motor, said solar panel being mounted to said floatation platform for pivotal movement relative thereto about a substantially vertical second axis spaced from the first vertical axis of said flotation platform between at least first and second positions.
2. The system of claim 1 wherein said solar panel has first and second side portions and said second axis is adjacent one side portion thereof.
3. The system of claim 2 wherein the other side portion of said solar panel is spaced farther from the first axis of said flotation platform in said second position than in said first position.
4. The system of claim 2 wherein said solar panel extends above and substantially over said dish in said first position.
5. The system of claim 4 wherein the other side portion of said solar panel is spaced farther from the first axis of said flotation platform in said second position than in said first position and extends horizontally outwardly in said second position beyond the dish.
6. The system of claim 1 wherein said solar panel is selectively lockable in said first position.
7. The system of claim 1 wherein said solar panel is mounted for movement relative to a third axis (152) substantially perpendicular to said second axis (141).
8. The system of claim 7 wherein said solar panel has a substantially planar face (136) and movement of said solar panel about said third axis (152) adjusts the angle (A) of the planar face to a horizontal plane (H).
9. The system of claim 1 further including at least a second panel spaced from said one panel about said first axis of said flotation platform.
10. The system of claim 9 wherein said one solar panel faces toward the first axis of said flotation platform in said first position.
11. The system of claim 10 wherein said second solar panel faces away from the first axis of said flotation platform.
12. The system of claim 11 further including at least a third solar panel facing away from the first axis of said flotation platform, said three solar panels being at least part of a plurality of solar panels substantially evenly spaced from each other about said first axis.
13. A circulation system for a body of water, said system including a flotation platform extending about a substantially vertical first axis (13), a dish, an impeller, and a drive motor operably connected to the impeller, said system further including at least one solar panel for supplying power to the drive motor, said solar panel having a main body with a substantially planar face (136) and a support arrangement for mounting the main body of said solar panel to said flotation platform for movement relative to a second axis (152) spaced from and substantially perpendicular to said first axis (13) of said flotation platform to adjust the angle (A) of the planar face to a horizontal plane (H),
the main body of said solar panel having side portions (140\u2032,142\u2032) and said support arrangement including members (158) respectively adjacent the side portions of the main body of said solar panel, said support arrangement for the main body of the solar panel further including first and second slotted tracks (155,157) in at least one of said members (158) extending away from each other at an obtuse angle (B), the main body of said solar panel having at least two pins (159) on at least one side portion thereof, said pins being respectively received in said first and second slotted tracks wherein movement of the main body of said solar panel relative to said support arrangement moves said pins along said slotted tracks to adjust the angle of the planar face of said solar panel relative to said horizontal plane.
14-17. (canceled)
18. A method for remotely monitoring operation of a circulation system for a body of water, said method including the steps of:
(a) providing system components including a flotation platform, a dish, an impeller, and a drive motor connected to said impeller to rotate said impeller about an axis,
(b) monitoring at least one operational characteristic of the components of step (a), and
(c) electronically transmitting at least said one monitored operational characteristic to a location remote from the components of step (a).
19. The method of claim 18 further including the step of controlling at least one operational characteristic of at least one of the components of step (a) from a location remote from the components of step (a).
20. The method of claim 19 further including the limitation of remotely controlling said one operational characteristic by an electronic transmission.
21. The method of claim 20 wherein said one operational characteristic is the rotational direction of the impeller about an axis.
22. The method of claim 20 wherein said system further includes at least one solar panel with a substantially planar face adjustably positionable at an angle to a substantially horizontal plane and said one operational characteristic is the angle of said planar face to the horizontal plane.
23. A method for operating a circulation system for a body of water to aid in reducing surface plant growth, said method including the steps of:
(a) providing a flotation platform, a dish, and an impeller, and
(b) operating the impeller for an extended period of time of at least about a day to draw water and plant growth adjacent the surface of the body of water downwardly through the impeller into the depths of the body of water and outwardly of the flotation platform.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A routing analysis method for performing a routing analysis on an integrated circuit from a netlist, which is information on a plurality of cells constituting said integrated circuit and routes connecting said plurality of cells, comprising the steps of:
(a) obtaining a sum of areas of said plurality of cells, a number of said plurality of cells or a number of said routes connecting said plurality of cells from said netlist, to be defined as a first constant, and calculating a layout area which is an area of a layout region, by dividing said first constant by a predetermined second constant;
(b) calculating a total route length by multiplying a predetermined perimeter length of said layout region having said layout area obtained in said step (a) by a predetermined coefficient; and
(c) calculating a routing difficulty index by dividing said total route length by said layout area.
2. The routing analysis method for an integrated circuit according to claim 1, wherein
said predetermined coefficient is obtained by dividing said total route length, which is measured by roughly arranging said plurality of cells in said layout region having a predetermined half perimeter length, by said predetermined half perimeter length.
3. The routing analysis method for an integrated circuit according to claim 1, wherein
said predetermined second constant is a numerical value indicating a ratio of an area of cells which are allowed to be arranged in said layout region to a unit area.
4. A routing analysis method for performing a routing analysis on an integrated circuit from a netlist, which is information on a plurality of cells constituting said integrated circuit and routes connecting said plurality of cells, comprising the steps of:
(a) obtaining a sum of areas of said plurality of cells, a number of said plurality of cells or a number of said routes connecting said plurality of cells from said netlist, to be defined as a first constant, and calculating a layout area which is an area of a layout region, by dividing said first constant by a predetermined second constant;
(b) calculating a route length of each net by multiplying a half perimeter length of said layout region by a predetermined coefficient of said each net and then obtaining a total route length by integrating said route length of said each net; and
(c) calculating a routing difficulty index by dividing said total route length by said layout area.
5. The routing analysis method for an integrated circuit according to claim 4, wherein
said predetermined coefficient is obtained by dividing said route length of said net, which is measured by roughly arranging said plurality of cells in said layout region having a predetermined half perimeter length, by said predetermined half perimeter length.
6. The routing analysis method for an integrated circuit according to claim 4, wherein
said predetermined second constant is a numerical value indicating a ratio of an area of cells which are allowed to be arranged in said layout region to a unit area.