Abstract: Processes for separating carbon nanotubes according to their length are described. The processes involve forming highly dispersed systems of the nanotubes followed by creating an array of layers in a centrifugation vessel. Each layer contains dispersed nanotubes with varying proportions of a density adjusting agent. The vessel array includes a first layer containing the nanotubes to be separated, and one or more layers of lesser density disposed above the first layer. Upon centrifuging for a sufficient period of time, a series of liquid fractions form in the vessel. The average length of nanotubes in a respective fraction is different than the average length of nanotubes in the other fractions.

Abstract: In at least one embodiment an apparatus is provided that includes an electromagnetic coupler probe to provide sampled electromagnetic signals and an electronics component to receive the sampled electromagnetic signals from the electromagnetic coupler probe and to provide recovered sampled electromagnetic signals. Other embodiments may be described and claimed.

Abstract: In at least one embodiment an apparatus is provided that includes an electromagnetic coupler probe to provide sampled electromagnetic signals and an electronics component to receive the sampled electromagnetic signals from the electromagnetic coupler probe and to provide recovered sampled electromagnetic signals. Other embodiments may be described and claimed.

Abstract: A functional biologically active particle conjugate useful for diagnosis and treating cancer as a bioportal comprises a nanoscale particle having associated therewith an intracellular targeting ligand comprising a PNA, or another nuclease resistant oligonucleotide analog such as MOE-mRNA (2?-methoxyethyl mRNA) or LNA (locked nucleic acid), having a sequence that binds selectively to an uniquely expressed or overexpressed mRNA specific to the cancer or disease state in a living mammal. In one aspect the uniquely overexpressed target specific to the cancer or disease state is the unr mRNA which can be targeted by the antisense sequence PNA50.

Abstract: A method and apparatus for grey encoding modulated data are described. In one embodiment, the method includes encoding of an input data stream to form an encoded data stream according to a symbol alphabet. In one embodiment, a modulated signal is produced from the encoded data stream. In one embodiment, the modulated signal includes a distinct symbol waveform to represent each symbol within the encoded data stream. In one embodiment, waveforms included in the modulated signal, which have adjacent transitions, represent symbols that differ by a single bit. In one embodiment, bit error rate is improved by encoding the phase positions in an edge position modulation system with grey encoding. Other embodiments are described and claimed.

Abstract: An ultrasonic probe for flow rate measurement is disclosed having a plurality of transducers mounted on a flexible cable configured to be inserted in a body cavity to obtain cardiac or other biometric telemetry. The flexible cable is provided with a disposable body which covers and microbially isolates the flexible cable and transducers. The disposable body is flexible and permits rotation of the flexible cable within it. Removal and replacement of the disposable body allows the probe to be used again without sterilization of the probe itself. A sensor window may be provided in the disposable body to allow transmission of ultrasonic signals, said window being provided with an anechoic surface treatment to reduce reception spurious ultrasonic echoes due to the material of the sensor window.

Abstract: According to an embodiment of the invention, a method and apparatus for signal modulation are described. According to an embodiment of the invention, a method comprises producing and transferring a modulated signal. The modulation of the signal is over a plurality of amplitude levels, including at least a first amplitude level, a second amplitude level and a third amplitude level, and over a plurality of time slots, including at least a first time slot, a second time slot, and a third time slot. The modulated signal transitions from the first amplitude level to the second amplitude level in the first phase slot, remains at the second amplitude level in the second time slot, and transitions from the second amplitude level to the third amplitude level in a third time slot.

Abstract: Methods and systems are disclosed for indicating microprocessor resources are limited. One method subtracts a current value of a pointer from a maximum value of the pointer and compares to a desired value. A stall is asserted when the desired value is achieved. Another method advances instructions along a pipeline, with the pipeline having a minimum amount of open space. The minimum amount of open space is subtracted from a current amount of open space within the pipeline, and this result is compared to a desired value. A stall is asserted when the desired value is achieved.

Abstract: A method of creating a black box timing model for a digital circuit. The digital circuit is characterized by a block model having at least one input and at least one output. The method determines a delay statement for the output of the block model. The method also determines an input set-up constraint for the input of the block model. The input set-up constraint is based upon the delay statement. The model is then used with a static timing analyzer to accurately model a flow-through circuit.

Abstract: A method and a system for static timing analysis of a latch-based circuit. A netlist data structure represents the latch-based circuit. The method statically analyzes the netlist data structure and produces timing information for signal paths within the latch-based circuit. The signal paths are filtered using path termination information, which specifies where paths end. The path termination information distinguishes a first signal path that terminates at a latch from a second signal path that flows through that same latch.

Abstract: Methods and systems are disclosed for indicating microprocessor resources are limited. One method subtracts a current value of a pointer from a maximum value of the pointer and compares to a desired value. A stall is asserted when the desired value is achieved. Another method advances instructions along a pipeline, with the pipeline having a minimum amount of open space. The minimum amount of open space is subtracted from a current amount of open space within the pipeline, and this result is compared to a desired value. A stall is asserted when the desired value is achieved.

Abstract: Methods and systems are disclosed for indicating microprocessor resources are limited. One method subtracts a current value of a pointer from a maximum value of the pointer and compares to a desired value. A stall is asserted when the desired value is achieved. Another method advances instructions along a pipeline, with the pipeline having a minimum amount of open space. The minimum amount of open space is subtracted from a current amount of open space within the pipeline, and this result is compared to a desired value. A stall is asserted when the desired value is achieved.

Abstract: A method of creating a black box timing model for a digital circuit. The digital circuit is characterized by a block model having at least one input and at least one output. The method determines a delay statement for the output of the block model. The method also determines an input set-up constraint for the input of the block model. The input set-up constraint is based upon the delay statement. The model is then used with a static timing analyzer to accurately model a flow-through circuit.

Abstract: Methods and systems are disclosed for calculating the number of valid instructions in a microprocessor instruction bundle. One method advances the instructions along the pipeline and edge detects the number of valid instructions within the pipeline. Another method fetches a bundle of instructions, shifts instructions within the bundle, and edge detects the valid instructions. Still another method fetches the bundle of instructions and detects a complex instruction within the bundle. Instructions occurring after the complex instruction are shifted, and the number of valid instructions occurring after the complex instruction are edge detected.

Abstract: A method and a system for static timing analysis of a latch-based circuit. A netlist data structure represents the latch-based circuit. The method statically analyzes the netlist data structure and produces timing information for signal paths within the latch-based circuit. The signal paths are filtered using path termination information, which specifies where paths end. The path termination information distinguishes a first signal path that terminates at a latch from a second signal path that flows through that same latch.

Abstract: An asymmetric arbiter provides a fast signal path and a slow signal path. Signals may travel over the fast signal path in substantially less time than it takes for the signals to travel over the slow signal path. The fast signal path may be configured so as to impart only a minimal amount of delay. Signals that are to be frequently arbitrated by the arbiter may be applied to the fast signal path so as to minimize the delay introduced by the arbiter. The arbiter may include circuitry for detecting metastable conditions.