Abstract: In waterslide amusement devices one or more water jets can be directed along the waterslide surface and used to apply a force to riders using the amusement device. In the present approach the operation of such water jet assemblies is adjusted based on the weight of each rider, so that riders of different weights can negotiate the waterslide amusement device safely and with an appropriate degree of excitement. The rider weight is conveniently measured on the waterslide amusement device, for example, using a load cell assembly, and a signal is sent to a controller to adjust the output of one or more downstream water jet assemblies based on the measured rider weight.

Abstract: A selenium ink comprising a chemical compound having a formula RZ-Sex-Z?R? stably dispersed in a liquid carrier is provided, wherein the selenium ink is hydrazine free and hydrazinium free. Also provided are methods of preparing the selenium ink and of using the selenium ink to deposit selenium on a substrate for use in the manufacture of a variety of chalcogenide containing semiconductor materials, such as, thin film transistors (TFTs), light emitting diodes (LEDs); and photoresponsive devices (e.g., electrophotography (e.g., laser printers and copiers), rectifiers, photographic exposure meters and photovoltaic cells) and chalcogenide containing phase change memory materials.

Abstract: A selenium ink comprising selenium stably dispersed in a liquid medium is provided, wherein the selenium ink is hydrazine free and hydrazinium free. Also provided are methods of preparing the selenium ink and of using the selenium ink to deposit selenium on a substrate for use in the manufacture of a variety of chalcogenide containing semiconductor materials, such as, thin film transistors (TFTs), light emitting diodes (LEDs); and photo responsive devices (e.g., electrophotography (e.g., laser printers and copiers), rectifiers, photographic exposure meters and photo voltaic cells) and chalcogenide containing phase change memory materials.

Abstract: A control system for a water amusement system is described. The control system is configured to operate the water amusement system to produce water effects, sound effects, and/or light effects when the control system receives an activation signal. The activation signal may be sent to the control system by an activation point, such as an optical touch button, or a water target. The control system is further configured to produce water effects, sound effects, and/or light effects in the absence of an activation signal to attract participants to the water amusement system.

Abstract: A molecular shuttle device comprises two or more molecular subunits connected to form a molecular chain, with the subunits defining binding positions along the molecular chain, and a shuttle capable of binding at each of the binding positions, wherein the shuttle moves between binding positions in response to one or more input signals which interact with the molecular subunits. In some embodiments the one or more input signals comprise an input signal sequence that interacts with the molecular chain and the shuttle moves between binding positions in response to the input sequence.

Abstract: This invention generally relates to nucleic acid synthesis, in particular DNA synthesis. More particularly, the invention relates to the production of long nucleic acid molecules with precise user control over sequence content. This invention also relates to the prevention and/or removal of errors within nucleic acid molecules.

Abstract: This invention generally relates to nucleic acid synthesis, in particular DNA synthesis. More particularly, the invention relates to the production of long nucleic acid molecules with precise user control over sequence content. This invention also relates to the prevention and/or removal of errors within nucleic acid molecules.

Abstract: A galvanic probe comprises a sensor electrode and a reference electrode. The sensor electrode has an exposed surface that comprises a noble metal or antimony or bismuth, and, optionally, an oxide or hydroxide thereof. The reference electrode is spaced apart from the sensor electrode and has an exposed surface that comprises zinc or magnesium, and, optionally, an oxide or hydroxide thereof. The probe may be incorporated into a device for controlling the pH and/or ORP of a fluid in a vessel to a desired pH and/or ORP level, incorporated into methods for measuring the pH and/or ORP of a fluid, or used as a galvanic cell.

Abstract: A galvanic probe comprises a sensor electrode and a reference electrode. The sensor electrode has an exposed surface that comprises a noble metal or antimony or bismuth, and, optionally, an oxide or hydroxide thereof. The reference electrode is spaced apart from the sensor electrode and has an exposed surface that comprises zinc or magnesium, and, optionally, an oxide or hydroxide thereof. The probe may be incorporated into a device for controlling the pH and/or ORP of a fluid in a vessel to a desired pH and/or ORP level, incorporated into methods for measuring the pH and/or ORP of a fluid, or used as a galvanic cell.

Abstract: A control system for a water amusement system is described. The control system is configured to operate the water amusement system to produce water effects, sound effects, and/or light effects when the control system receives an activation signal. The activation signal may be sent to the control system by an activation point, such as an optical touch button, or a water target. The control system is further configured to produce water effects, sound effects, and/or light effects in the absence of an activation signal to attract participants to the water amusement system.

Abstract: A galvanic probe comprises a sensor electrode and a reference electrode. The sensor electrode has an exposed surface that comprises a noble metal or antimony or bismuth, and, optionally, an oxide or hydroxide thereof. The reference electrode is spaced apart from the sensor electrode and has an exposed surface that comprises zinc or magnesium, and, optionally, an oxide or hydroxide thereof. The probe may be incorporated into a device for controlling the pH and/or ORP of a fluid in a vessel to a desired pH and/or ORP level, incorporated into methods for measuring the pH and/or ORP of a fluid, or used as a galvanic cell.

Abstract: A vehicle jack system attachable to a vehicle for lifting portions of the vehicle. The system includes at least one hydraulically operated jack pivotally mounted to the associated vehicle. A hydraulic positioning assembly extends between the jack and the vehicle to effect a pivoting of the jack into either a horizontal position for storage, or a vertical position for operation thereof. A solenoid arrangement facilitates a controlled distribution of hydraulic fluid from a pressure source to a plurality of such jacks mounted around the vehicle. An alternate embodiment of the present includes a ground engaging ski for permitting translation of the vehicle over a icy surface, and a locking assembly for securing both a longitudinal and angular position of each jack.