摘要:
A toxic waste and glass frit are fed into an extruder having a helical screw. The glass frit, as well as any glassy material and glass-forming component in the waste, are melted in the extruder as the screw transports the waste and the frit through the extruder. The screw further mixes the waste and the frit and homogenizes the resulting mixture. The extruder is designed to generate high shear rates and high internal friction and at least a portion of the heat for melting is produced by such friction. A vitrified mass of the toxic waste is discharged from the extruder. The vitrified mass can be stored as is or can be pelletized and/or encapsulated.
摘要:
Unduly large travel of a flexure resulting in overflexure or the permanent loss of dimple contact between flexure and load beam in a disk drive suspension is blocked by having the flexure and load beam loosely coupled by a blocking structure which freely permits desired movement, within a predetermined range, but blocks other movement, by defining a gap between flexure and load beam equal to or less than the maximum tolerable amount of travel against movement beyond the predetermined range.
摘要:
Analogs of Factor Xa (Factor Xai) which are inactive as proteases in the prothrombinase reaction are useful in treatment of diseases characterized by thrombosis. These antithrombotic agents can be conveniently prepared using recombinant techniques.
摘要:
Defined constructs of modified human platelet-derived growth factor receptor polypeptides are provided. Extracellular region domain structures are identified and modifications and combinatorial rearrangements of the receptor segments are provided. Both cell bound and soluble forms of modified segments are made available, as are methods for assays using them, allowing for screening of ligand analogues.
摘要:
An in-line skate having a plurality of aligned wheels which are secured and supported on the bottom of an in-line skate boot by a pair of axle supports. The axle supports extend longitudinally of the skate boot. One of the axle supports is secured directly to the skate boot. The other axle support is secured to and slides with respect to the other axle support. The wheels, each carried by an axle, are positioned within the inner axle support and are secured to the axle supports by axles that pass through aligned slots in the two supports. The slots in the axle supports are arranged to cause vertical movement of at least one, and preferably two, of the wheels when one axle support is moved relative to the other.
摘要:
A photovoltaic roofing shingle includes a strip of roofing material having an overlap portion, and a plurality of tab portions depending therefrom. Each of the tab portions includes a photovoltaic generating device affixed thereto. The photovoltaic devices are electrically interconnected, and each photovoltaic shingle member includes a pair of electrical terminals for delivering power from said photovoltaic devices. In use, the shingle members are affixed to a roof so that the tab portions of one row of shingles cover the overlap portion of an adjoining row. Electrical interconnection may be made through the roof to the inside of the building, or to a point atop the roof.
摘要:
The present invention provides an in vitro tissue culture-based assay for amyloid deposition specific for Alzheimer's disease which is suitable for routine drug screening analysis. Immunological diagnostic reagents for Alzheimer's disease are also provided.
摘要:
A container holder for air freshener, deodorizer or other conventional household aerosol cans. The container holder is wall mountable and comprises a holder body into which the container is placed and a cover portion which is slideably mounted onto the holder body. As the cover is pushed in the downward direction a tongue located on the inside surface of the cover top causes the container valve to actuate releasing a spray of the container contents into the environment. Upon release of the cover, the cover springs upward to its rest position causing the container valve to shut.
摘要:
A ski pole formed with a separate handle and shaft. The handle and shaft are held in normal longitudinal alignment for normal use. Means are provided to permit the handle to be moved angularly with respect to the shaft when forces above a preselected minimum are applied to the shaft and handle in different directions. The ski pole thus bends at the handle when a skier holding the ski pole has forces applied to his hand above a preselected minimum. Means are also provided for adjusting the minimum force required to permit release of the handle from longitudinal alignment with the shaft.