Abstract: The present disclosure belongs to the technical field of nanomaterial synthesis, and in particular, to a preparation method for a core-shell structure quantum dot. The preparation method provided by the present disclosure includes the following steps: in a protective gas atmosphere, mixing a cadmium source, an organic ligand, and an organic solvent with a first selenium source for a nucleation reaction to obtain an organic solution of a CdSe quantum dot core; and mixing the organic solution of the CdSe quantum dot core, a zinc source and an inorganic anion source for shell coating to obtain the core-shell structure quantum dot, where the inorganic anion source includes a second selenium source.

Abstract: The present disclosure provides a wide beam radiation leakage coaxial cable, which includes an inner conductor, an insulating layer, an outer conductor and a sheath coaxially nested from inside to outside in sequence, at least two columns of slot groups are provided on the outer conductor, the columns of slot groups are distributed at different angles in the circumferential direction of the outer conductor, the included angle between two adjacent columns of slot groups is ?=?/n, where ? is the target radiation width, n is the number of columns of slot groups, each column of slot groups includes a plurality of slot arrays periodically arranged in the axial direction of the outer conductor, the pitch of each column of slot groups is the same, the pitch phase of each column of slot groups on the same leakage cable section is consistent, and each slot array includes a plurality of slots.

Abstract: A haptic sensing device, including a light source, an optical waveguide, a photoelectric sensor, and a housing. The optical waveguide includes a waveguide layer and a cladding, the cladding encloses the waveguide layer, and a refractive index of the waveguide layer is greater than a refractive index of the cladding. The waveguide layer includes a plurality of paths, the light source is disposed at an input end of each path, and the photoelectric sensor is disposed at an output end of each path. The light source, the optical waveguide, and the photoelectric sensor are accommodated in the housing. A plurality of contacts are distributed on the housing. When a contact is pressed, the contact is in contact with one path, and the path is deformed. When any two contacts are pressed, the two contacts are in contact with different paths.

Abstract: The present disclosure belongs to the technical field of nanomaterial synthesis, and in particular, to a preparation method for a narrow-linewidth alloy quantum dot. The preparation method provided by the present disclosure includes the following steps: in a protective gas atmosphere, mixing a cadmium source, an organic ligand, and an organic solvent with a first selenium source for a nucleation reaction to obtain an organic solution of a CdSe quantum dot core; and mixing the organic solution of the CdSe quantum dot core, a zinc source and an inorganic anion source for shell coating to obtain the narrow-linewidth alloy quantum dot, where the inorganic anion source includes a second selenium source.

Abstract: The present disclosure provides a wide beam radiation leakage coaxial cable, which includes an inner conductor, an insulating layer, an outer conductor and a sheath coaxially nested from inside to outside in sequence, at least two columns of slot groups are provided on the outer conductor, the columns of slot groups are distributed at different angles in the circumferential direction of the outer conductor, the included angle between two adjacent columns of slot groups is ?=?/n, where ? is the target radiation width, n is the number of columns of slot groups, each column of slot groups includes a plurality of slot arrays periodically arranged in the axial direction of the outer conductor, the pitch of each column of slot groups is the same, the pitch phase of each column of slot groups on the same leakage cable section is consistent, and each slot array includes a plurality of slots.

Abstract: A haptic sensing device, including a light source, an optical waveguide, a photoelectric sensor, and a housing. The optical waveguide includes a waveguide layer and a cladding, the cladding encloses the waveguide layer, and a refractive index of the waveguide layer is greater than a refractive index of the cladding. The waveguide layer includes a plurality of paths, the light source is disposed at an input end of each path, and the photoelectric sensor is disposed at an output end of each path. The light source, the optical waveguide, and the photoelectric sensor are accommodated in the housing. A plurality of contacts are distributed on the housing. When a contact is pressed, the contact is in contact with one path, and the path is deformed. When any two contacts are pressed, the two contacts are in contact with different paths.

Abstract: An apparatus includes a plurality of antennae, one or more receiver chains, non-volatile memory and a signal processor. The non-volatile memory stores instructions for executing by the processor. The processor, when executing the instructions, is configured to determine a first threshold value, apply, to each of a plurality of signals individually received through different antennae, windowing in the frequency domain, and to determine as a windowing result, for individual window frequency positions, a number of data values above the first threshold, to merge the windowing results determined for the individual signals for corresponding windowing positions, to identify as noise bands spectral areas with merged windowing results above second threshold, and to transmit and/or receive signals in spectral bands outside of the noise band spectral areas.

Abstract: It is provided an apparatus, including base station means to provide a base station functionality using component carriers; neighbor detecting means to detect a neighboring base station; informing means to inform a coordinating device about the neighboring base station; willingness setting means to set a willingness to perform self-tuning based on a respective long-term priority for each component carrier, wherein the long-term priorities are received from the coordinating device, and the willingness is only set if the long-term priorities are not in contradiction to an actual requirement, willingness providing means to provide an indication of the willingness to the coordinating device; and self-tuning means to perform self-tuning if an agreement statement is received from the coordinating device, wherein, as a result of the self-tuning, a usage of each component carrier by the base station means is based on the received long-term information and the actual requirement.

Abstract: According to an embodiment an apparatus comprises a plurality of antennae, one or more receiver chains, non-volatile memory and a signal processor. The non-volatile memory stores instructions for executing by the processor. The processor, when executing the instructions, is configured to determine a first threshold value, apply, to each of a plurality of signals individually received through different antennae, windowing in the frequency domain, and to determine as windowing result, for individual window frequency positions, a number of data values above the first threshold, to merge the windowing results determined for the individual signals for corresponding windowing positions, to identify as noise bands spectral areas with merged windowing results above second threshold and to transmit and/or receive signals in spectral bands outside of the noise band spectral areas.

Abstract: Channel activity and subsequent access is determined by antenna selection. A sensing period is allocated into slots, dependent on the number of available antennas. For each slot, a distinct set of antennas is used for sensing for channel activity. Results of channel activity measurements for the slots are combined to form a channel activity report.

Abstract: Channel activity and subsequent access is determined by antenna selection. A sensing period is allocated into slots, dependent on the number of available antennas. For each slot, a distinct set of antennas is used for sensing for channel activity. Results of channel activity measurements for the slots are combined to form a channel activity report.

Abstract: It is provided an apparatus, including base station means to provide a base station functionality using component carriers; neighbor detecting means to detect a neighboring base station; informing means to inform a coordinating device about the neighboring base station; willingness setting means to set a willingness to perform self-tuning based on a respective long-term priority for each component carrier, wherein the long-term priorities are received from the coordinating device, and the willingness is only set if the long-term priorities are not in contradiction to an actual requirement, willingness providing means to provide an indication of the willingness to the coordinating device; and self-tuning means to perform self-tuning if an agreement statement is received from the coordinating device, wherein, as a result of the self-tuning, a usage of each component carrier by the base station means is based on the received long-term information and the actual requirement.