Abstract:
A method for controlling a field emission display to reduce emission to grid during turn on and turn off is provided. A field emission display (FED) includes emitter sites formed on a baseplate; a grid for controlling electron emission from the emitter sites; a display screen for collecting electrons to form an image and a power supply. In order to reduce emission to grid during turn on, the display screen is enabled by the power supply prior to enabling of the emitter sites. An anode-baseplate voltage differential is thus established prior to electron emission. For turn on, the method includes varying the capacitances of the control circuits for the display screen and grid such that a time constant (RC) for the grid is larger than a time constant (RC) for the display screen. Alternately the method of the invention can be implemented during turn on using software, using time delay circuit components, or using an emitter site control circuit to control electron flow to the emitter sites. During turn off, the electron emission and anode-baseplate voltage differential are eliminated while a path to ground is provided for the grid.
Abstract:
An auxiliary substance such as a label, support, or bioactive agent is attached to a protein at a site that is remote from the active site of the protein by the use of exopeptidase and a nucleophile which is an amino acid, amino acid derivative, amine or alcohol. In one embodiment, the nucleophile is attached to the carboxy terminus of a protein by catalysis with exopeptidase to form an adduct and then the adduct or its combination with a linker arm is bound to the auxiliary substance. In another embodiment, the auxiliary substance or its combination with a linker arm is bound to the nucleophile to form an intermediate substance which is then coupled by catalysis with exopeptidase to the carboxy terminus of a protein.
Abstract:
The invention is directed to a method of purifying sequentially synthesized peptides and oligonucleotides by affinity techniques. Selected products are capped with and N-terminus capping agent for peptides or a 5'-terminus capping agents for oligonucleotides, and then bound with affinity agents that are selective for the corresponding capping agents.
Abstract:
Abrasion resistant, tintable coating compositions which are based on siloxane/silica hybrid coating resins and which also contain at least about 3 percent but less than about 20 percent of a tintability enhancing compound selected from the group consisting of polyhydroxyl-functional compounds and butylated urea formaldehyde compounds. These coating compositions are especially useful for providing both abrasion resistance and high levels of tinting and, optionally, absorbance of ultraviolet radiation. Tetrahydroxybenzophenone is a preferred tintability enhancing compound that also absorbs UV light.
Abstract:
A fuze setting device utilizes a plurality of detented, rotatable, magnet sitioning time setting rings and an encoding disc for controlling the amount of electrical pulses that a timing oscillator is required to subsequently generate to fill an "and" gate controlled multi-stage counter. The counter after being filled generates a fuze initiating signal. A setback detented electromagnetic pulse generating despin operated sensor assembly is used in combination with the oscillator to generate electrical pulses for partially filling the counters in accordance with the relative angular positioning between the magnetic source setting rings and the pole pieces of electrical coils which generate a stop pulse to regulate the number of pulses necessary to fill the counters.
Abstract:
A coupler guard configured to protect an aux coupler assembly from side impacts in the rough use environment of a loader. The coupler guard comprises an encasement and a side plate. The loader comprises the aux coupler assembly and a hinge extension. The encasement wraps around a top portion and interior side of the aux coupler assembly. The side plate attaches to a portion of the encasement and protect an exterior side portion of the aux coupler assembly. A screw assemblies selectively attaches the encasement to the side plate. A ring attaches to a portion of the side plate. The ring selectively wraps around a portion of the hinge extension of the loader. A ring screw assembly selectively holds the ring and the rest of the coupler guard to the hinge extension. An edge trim selectively sits on top of a portion of a first arm.
Abstract:
A coupler guard configured to protect an aux coupler assembly from side impacts in the rough use environment of a loader. Said coupler guard comprises an encasement and a side plate. Said loader comprises said aux coupler assembly and a hinge extension. Said encasement wraps around a top portion and interior side of said aux coupler assembly. Said side plate attaches to a portion of said encasement and protect an exterior side portion of said aux coupler assembly. A screw assemblies selectively attaches said encasement to said side plate. A ring attaches to a portion of said side plate. Said ring selectively wraps around a portion of said hinge extension of said loader. A ring screw assembly selectively holds said ring and the rest of said coupler guard to said hinge extension. An edge trim selectively sits on top of a portion of a first arm.
Abstract:
The present invention discloses that the binding of Arf with Dm2, important components of the p53 tumor suppressor pathway, results in specific domains of both proteins undergoing a dramatic transition from dynamically disordered conformations to amyloid-like structures comprised of anti-parallel β-strands. The invention exploits this discovery by providing unique methods for identifying and/or designing compounds that mimic, inhibit and/or enhance the effect of Arf on Dm2. The present invention also provides specific peptides derived from the binding domains of Arf and Dm2 which co-assemble into supramolecular structures comprised of binary anti-parallel β-strands. The disclosed peptides may represent structural prototypes for a broader class of peptides that is capable of assembly into supramolecular structures.