摘要:
A system for selectively revealing indicia to an observer comprises a transitioning window having a receiving surface and a viewing surface. The receiving surface is positioned in optical communication with an indicia holder that is configured to removably retain indicia, such as information content. During operation, the transitioning window transitions from a substantially opaque state to a substantially transparent state so as to reveal or otherwise display the indicia to an observer via the viewing surface.
摘要:
The inventive concept is a wristband or sweatband towel combination which is attached to the wrist of a user who is involved in sporting or working activities and who uses the towel for wiping perspiration from various parts of the body of the user. The wristband or sweatband surrounds the wrist and may have a way of separately attaching the towel to the wristband. This means that it can be separated at any time. The towel itself can be folded into half or completely into a fully retracted position to thereby be placed on top of the wristband. At this location the towel is usable to wipe perspiration in a limited fashion.
摘要:
Example methods and systems for determining when to launch vehicles into a fleet of autonomous vehicles are described. A method comprises receiving a sequence of coverage requirements for a region over a period of time. The region may be characterized by landmarks and the period of time can be divided into time intervals. The method also includes defining a landmark as a launch site representative of a landmark at which a given vehicle can be added to a plurality of operating vehicles, and determining for a respective landmark, estimated landmarks that can be reached by a vehicle starting from the respective landmark by an end of a time interval. The method also includes based on the sequence of coverage requirements and the estimated landmarks, determining a given launch site and corresponding time interval at which to add the given vehicle to the plurality of operating vehicles.
摘要:
A solar module has a plurality of solar panels framed within a frame member having side frame members connected to end frame members. Each side frame member and end frame member have a groove and a channel, and side frame members also have an elongated flange that raises up the solar panel a distance to allow cooling air to pass under the solar panel. Framed solar panels are connected to lengthwise support members having top, bottom and side channels, such as T-slots. These channels allow for easy adjustment and compensates for variability in the installation process. Each solar panel is connected to the lengthwise support members by way of legs. To connect adjacent solar panels to the lengthwise support members, a pair of legs, one long leg and one short leg, are stacked on top of one another and fastened to the lengthwise support member.
摘要:
Foam dispensers, refill units for foam dispensers, and liquid pumps for use in foam dispensers are disclosed herein. In one embodiment, an inverted foam pump includes a compression chamber having an inlet valve and an outlet valve. The compression chamber is in fluid communication with a flow restrictor, an atomizer, a mixing chamber, a foaming chip and an outlet. The inlet valve, outlet valve, flow restrictor, atomizer, mixing chamber, foaming chip and outlet extend along a common axis. An air inlet is included that extends into the mixing chamber; the air inlet is an opening to atmospheric pressure. During operation, the liquid pump is located below the liquid container and liquid flowing from the compression chamber is accelerated and atomized. The atomized liquid enters the mixing chamber at a velocity sufficient to draw in air from the air inlet to mix with the liquid to form a foam.
摘要:
Devices, systems and methods for visually indicating the presence of a fire hydrant and the range of gallons per minute water flow associated with the hydrant.
摘要:
A high precision micro/nanoscale machining system. A multi-axis movement machine provides relative movement along multiple axes between a workpiece and a tool holder. A cutting tool is disposed on a flexible cantilever held by the tool holder, the tool holder being movable to provide at least two of the axes to set the angle and distance of the cutting tool relative to the workpiece. A feedback control system uses measurement of deflection of the cantilever during cutting to maintain a desired cantilever deflection and hence a desired load on the cutting tool.
摘要:
A system for selectively revealing indicia to an observer comprises a transitioning window having a receiving surface and a viewing surface. The receiving surface is positioned in optical communication with an indicia holder that is configured to removably retain indicia, such as information content. During operation, the transitioning window transitions from a substantially opaque state to a substantially transparent state so as to reveal or otherwise display the indicia to an observer via the viewing surface.