Abstract: A drilling fluid comprising: a non-ionic surfactant including at least one of a branched alcohol ethoxylate and a capped alcohol ethoxylate, a detergent builder and a viscosifier.

Abstract: A drilling fluid comprising: a non-ionic surfactant including: a branched alcohol ethoxylate and/or a capped alcohol ethoxylate; and a detergent builder.

Abstract: A drilling fluid comprising: a non-ionic surfactant including at least one of a branched alcohol ethoxylate and a capped alcohol ethoxylate, a detergent builder and a viscosifier.

Abstract: A drilling fluid comprising: a non-ionic surfactant including at least one of a branched alcohol ethoxylate and a capped alcohol ethoxylate, a detergent builder and a viscosifier.

Abstract: A roller that is particularly useful for use with golf course greens. The roller has a base having front, rear and opposing sides, the base having a frame and a deck disposed on the frame. An operator seat is disposed on a base deck and fixedly oriented toward the front of the roller. Operator controls are disposed in front of the seat. The roller has a driven roller which normally rolls substantially in the front and rear directions. The driven roller is cylindrical and rotates about an elongated axis which is oriented substantially normally side to side with respect to the roller. The driven roller is disposed behind the seat.

Abstract: A sprayer that is particularly useful for golf course turf. The sprayer includes a vehicle, a sprayer connected to the vehicle, and an electric power system for moving the vehicle and for operating the sprayer. The sprayer includes a liquid material storage connected to the vehicle, a spray assembly communicatively connected to the liquid material storage, and a spray boom communicatively connected to the vehicle and to the distribution system for applying a spray to a predetermined location or area proximate the vehicle, The spray assembly includes a pumping system communicatively connected to the electric power system and to the liquid material storage. The spray assembly also has a filtering system communicatively connected to the liquid material storage the spray assembly also has a distribution system communicatively connected to the liquid material storage for controlling and selectively moving liquid material in at least a pair of direction.

Abstract: The present disclosure provides methods and compositions for modulating an adaptive immune response without significantly affecting an innate immunity response in a subject by modulating a combination of an Immunophilin/Cyclophilin Family Member and an EMMPRIN Immunoglobulin Receptor Superfamily Member. The present invention also provides methods and compositions for treating a variety of clinical conditions by modulating an Immunophilin/Cyclophilin Family Member and an EMMPRIN Immunoglobulin Receptor Superfamily Member.

Abstract: An integrated circuit is disclosed that integrates a low current, high speed optical receiver with the primary side control functions of the power supply. This is further combined with an optical emitter to create a single component for feedback and control, providing improved performance and manufacturing. A method of providing feedback for the power supply using such an integrated optically coupled control circuit is also disclosed.

Abstract: The invention provides cytokine modulators and methods for using the same to modulate cytokine production in monocyte lineage-derived cells. In particular, cytokine modulators of the invention selectively bind to a T-cell cytokine-inducing surface molecule (TCISM)-ligand of T lymphocytes or the corresponding TCISM-receptor of monocyte lineage-derived cells, thereby modulating cytokine production in monocyte lineage-derived cells.

Abstract: A drilling fluid and method for drilling in a coal containing formation. The method includes: providing a mixed metal-viscosified drilling fluid including at least 1% potassium salt; circulating the drilling fluid through the well; and drilling into a coal seam.

Abstract: A drilling fluid comprising: a non-ionic surfactant including at least one of a branched alcohol ethoxylate and a capped alcohol ethoxylate, a detergent builder and a viscosifier.

Abstract: A shale-stabilizing additive is described which comprises a copolymer of an olefinically unsaturated hydrocarbon and an ethylenically unsaturated carboxylic acid, carbocylic acid salt or carboxylic acid anhydride with alkylene oxide based side chains. The additive can be used for water-based service fluids (WBM) to facilitate the drilling or completion process in shales or clayey formations.

Abstract: A circuit for controlling the switching behavior of a field effect transistor (FET) or other power switch in a power supply or converter. The circuit includes an adaptive feedback loop which controls the switching operation of the FET through application of a gate drive signal to the device. The circuit is designed to turn the switching device on or off at the optimum time to reduce the stress and power losses associated with the switching action. The circuit includes a capacitor connected to the FET switch drain to sense the falling voltage across the switch. The adaptive gate drive circuit holds the FET switch off until the drain voltage sensed by the capacitor stops decreasing. At this time, the FET switch voltage is either zero (zero-voltage switching) or has reached the minimum value of its resonant ring (low-voltage switching).

Abstract: In an electronic circuit having an input stage, an output stage having an output voltage, and a feedback element including a coupler having a transmitter coupled to said output stage and a receiver coupled to said input stage, said receiver being galvanically isolated from said transmitter, said transmitter sending an output signal that is a function of said output voltage to said receiver, said receiver generating a receiver output in response to receiving said output signal, a feedback control circuit for said feedback element, said feedback control circuit comprising: a transmitter drive circuit coupled to said transmitter for adjusting said output signal as a function of said output voltage, said transmitter drive circuit comprising an error signal generation stage, said error signal generation stage using a voltage that is a function of the output voltage to generate a feedback control signal, and a non-linear stage, said non-linear stage outputting a transmitter drive signal to said transmitter as a fun

Abstract: A speed limiting device for a vehicle equipped with a deployable utility device such as a bunker rake. An adjustable mechanical linkage connects a limiting mechanism to the deployable utility device such that when the utility device is deployed, the limiting mechanism is positioned to stop rotation of a pivoting member which controls the output of the power source, such as a hydrostatic drive. The adjustable linkage provides adjustment of the stop position and, therefore, the maximum speed of the vehicle when the utility device is deployed. When the utility device is in the non-deployed position, the limiting mechanism is positioned such that it does not inhibit the motion of the pivoting member, and the vehicle can be operated over its entire speed range.