Abstract: Two-stage reactor and method for producing carbon nanotubes.

Abstract: Novel sp3 rich diamond-like carbon (DLC) nanorod films were fabricated by hot filament chemical vapor deposition technique. The results are indicative of a bottom-up self-assembly synthesis process, which results in a hierarchical structure that consists of microscale papillae comprising numerous nanorods. The papillae have diameters ranging from 2 to 4 ?m and the nanorods have diameters in the 35-45 nm range. A growth mechanism based on the vapor liquid-solid mechanism is proposed that accounts for the morphological aspects in the micro- and nano-scales.

Abstract: Methods for fabricating graphene materials may coat a hydrocarbon precursor onto a metal substrate and heat the coated metal substrate to a first temperature. Methods may then maintain the first temperature of the coated metal substrate for a duration which dissociates the hydrocarbon precursor into carbon on the metal substrate, and cool the coated metal substrate to a second temperature that is lower than the first temperature. Heating the coated metal substrate may dissociate the hydrocarbon precursor and cooling the coated metal substrate may allow the dissociated hydrocarbon to arrange itself into graphene on the metal substrate.

Abstract: In one implementation, a radio is tuned to a frequency and bandwidth such that it can accommodate a plurality of frequency channels of a plurality of RATs. Radio samples are acquired by the radio and stored to an input memory. The RAT specific cell search further includes performing a RAT specific frequency scan on the set of radio samples to detect candidate frequencies for each RAT. Performing the RAT specific frequency scan may comprise dividing the set of radio samples into the plurality of frequency channels for each RAT, sensing the energy for each channel for each RAT, determining a set of frequency channels having highest energy for each RAT and attempting to detect candidate frequencies having highest energy for each RAT.

Abstract: The present subject matter discloses a method for antenna activity detection in multi-antenna communication devices. In one embodiment, the method comprises computing a received signal strength indicator (RSSI) value for each of a plurality of antennas based on a sampled data associated with each of the antennas. The RSSI values may then be analyzed to identify an antenna having a highest RSSI value as a primary antenna and one or more antennas having the RSSI value less than the highest RSSI value as auxiliary antennas. Further, an RSSI difference for each of the auxiliary antennas is calculated and compared with a first threshold value to ascertain one or more potentially inactive antennas from among the auxiliary antennas. The potentially inactive antennas may then be further analyzed to identify one or more inactive antennas based at least in part on the RSSI value.

Abstract: In one implementation, a radio is tuned to a frequency and bandwidth such that it can accommodate a plurality of frequency channels of a plurality of RATs. Radio samples are acquired by the radio and stored to an input memory. The RAT specific cell search further includes performing a RAT specific frequency scan on the set of radio samples to detect candidate frequencies for each RAT. Performing the RAT specific frequency scan may comprise dividing the set of radio samples into the plurality of frequency channels for each RAT, sensing the energy for each channel for each RAT, determining a set of frequency channels having highest energy for each RAT and attempting to detect candidate frequencies having highest energy for each RAT.

Abstract: The present subject matter discloses a method for antenna activity detection in multi-antenna communication devices. In one embodiment, the method comprises computing a received signal strength indicator (RSSI) value for each of a plurality of antennas based on a sampled data associated with each of the antennas. The RSSI values may then be analyzed to identify an antenna having a highest RSSI value as a primary antenna and one or more antennas having the RSSI value less than the highest RSSI value as auxiliary antennas. Further, an RSSI difference for each of the auxiliary antennas is calculated and compared with a first threshold value to ascertain one or more potentially inactive antennas from among the auxiliary antennas. The potentially inactive antennas may then be further analyzed to identify one or more inactive antennas based at least in part on the RSSI value.

Abstract: A technique for executing a task sequence on a computing system comprising a multiple task processor having an on-chip memory and further comprising an external memory connected to the multiple task processor is provided. A method implementation of the technique comprises transferring load module data from the external memory into the on-chip memory in order to generate a load module sequence within the on-chip memory, wherein the generation of a load module of the load module sequence comprises the following processes: determining which parts of the load module are currently stored within the on-chip memory, and transferring only load module data from the external memory into the on-chip memory for parts of the load module which are currently not stored within the on-chip memory, wherein each load module of the load module sequence is generated within an individual address range of the on-chip memory which is chosen in dependence on the load module sequence.

Abstract: Diamond thin films were deposited on copper substrate by the Vapor Solid (VS) deposition method using a mixture of fullerene C60 and graphite as the source material. The deposition took place only when the substrate was kept in a narrow temperature range of approximately 550-650° C. Temperatures below and above this range results in the deposition of fullerenes and other carbon compounds, respectively.

Abstract: The invention presents a simple, non-destructive and non-abrasive method of diamond nucleation using polyethene. It particularly describes the nucleation of diamond on an electrically viable substrate surface using polyethene via chemical vapor deposition (CVD) technique in a gaseous environment.