Abstract: A microprocessor-based valve motor control system which provides control, predictive control and diagnostic functions for a motor operated valve. A microprocessor periodically tests the status of the motor operated valve, and turns off the valve's motor if certain predefined criteria for the valve stem position and the valve stem load are satisfied. The periodic testing by the microprocessor includes the testing of a position criterion (comparing both the current valve stem position signal and a predicted stem position with a preselected target position); and a stem load criterion (comparing both the current valve stem load and a predicted stem load with a preselected maximum desirable stem load).When the control system is being used with a gate valve for fully opening and fully closing a valve, the control logic can use either a predicted position criterion or a predicted stem load criterion to determine when to turn off the valve motor.

Abstract: There is described a microprocessor-based valve motor control system which provides control, predictive control and diagnostic functions for a motor operated valve. A valve stem position sensor measures the stem position and a load sensor measures the load on the valve stem.When the valve is being opened, the system predicts the position of the valve stem at a predefined time in the future and turns off the motor if the predicted valve stem position is beyond a preselected open valve position. When said valve is being closed, the system predicts the load on the valve stem at a predefined time in the future and turns off the motor if the predicted load value exceeds a preselected maximum desirable stem closing load.

Abstract: The atherosclerotic plaques which form arterial lesions have been found to take up lipoproteins from the blood flowing through the arteries. Accordingly, the early detection of arterial disease is accomplished by preparing an infusate composed of radiolabeled low-density lipoproteins and introducing the infusate into the patient's arterial system. A gamma radiation detector is then used to detect and quantify concentrations of the radiolabeled proteins thereby to indicate the locations and sizes of the lesions.

Abstract: Lipoproteins radiolabelled with an isotope of technetium substantially retain their native structure and biological function. The lipoproteins can be radiolabelled by simultaneous reduction of pertechnetate and lipoprotein with sodium dithionite at pH 8-9. The resulting radiolabelled lipoproteins can be used as probes for extracorporeal imaging to analyze lipoprotein metabolism.

Abstract: Particulate detergent compositions, especially for use in cold water, contain a detergent active material, an alkaline material and builder particles comprising a carrier material and a saturated fatty acid having at least 16 carbon atoms. The carrier material is water-soluble or water-dispersible to release the fatty acid when the composition is added to a wash liquor. The builder particles have a size of 50 to 5000 microns. Suitable carrier materials include starch, clay, silica and inorganic salts. The fatty acid may be in solid solution with a dispersant such as a nonionic surfactant. When the alkaline material is carbonate, the addition of the builder particles to the wash liquor may be delayed until after a critical state is reached.

Abstract: Fabric, particularly soiled fabrics containing calcium carbonate crystal growth poisons, may be washed in hard water to which has been added a detergent active material and an alkali metal carbonate if a secondary detergency builder is added after a defined critical state of the system is reached. The secondary builder may be a precipitating, sequestering or ion exchange builder, and is added in such an amount which would be insufficient, in the absence of the carbonate, to reduce the free calcium ion concentration to less than 10.sup.-5 molar. The delayed addition can be achieved by separate dosing, coating the secondary builder, dosing the composition in the form of a two-compartment sachet or forming the secondary builder material in situ. The composition may include a material, such as calcite, to promote the occurrance of the critical state.

Abstract: A toy configured to simulate an insect with wings is disclosed. The toy has a main body section to which a tail and a head section are attached to form an insect body. Two wings are rotatably mounted for disposition on both lateral sides of the main body section. A mechanism is provided to cause simultaneous flapping of all the wings. A cavity having a pivotable cover plate is provided in the head section. Various toy appendages such as a toy doll may be placed in the cavity.

Abstract: A toy having an upper and a lower body section is disclosed. The lower body section is operatively attachable to the upper body section in a plurality of configurations. A container capable of holding a liquid is included in the upper body section. A compressable bellow, and a nozzle is operatively connected to the container whereby the liquid may be squirted out from the toy at the option of a player. The lower body section includes an electric motor and a track assembly which is capable of locomoting the toy in any of the possible configurations assembled at the option of the player.