摘要:
Certain aspects of the present disclosure relate to a technique for constructing a short training field (STF) sequence of a Very High Throughput (VHT) preamble in an effort to reduce a peak-to-average power ratio (PAPR). The constructed STF sequence may feature a specific repetition period.
摘要:
Methods and systems for detecting trees in aerial imagery are provided. A method for detecting trees in aerial imagery may include training a pixel-level classifier to assign a tree or non-tree label to each pixel in an aerial image. The method may further include segmenting tree and non-tree regions of the labeled pixels. The method may also include locating individual tree crowns in the segmented tree regions using one or more tree templates. A system for detecting trees in aerial imagery may include a trainer, a segmenter and a tree locator.
摘要:
Apparatus and methods for storage and transmission of recipe data (process parameters) for the molding of articles in an injection molding apparatus. A controller includes a flow control microcontroller (MCU) that receives recipe data from a recipe storage microcontroller (MCU) mounted to a mold of an injection molding machine, the recipe storage MCU storing the recipe data defining process parameters for the molding of articles in the mold. The flow control MCU executes instructions for controlling valve pin motions according to the recipe data. In one embodiment, a human operator interface is provided for transmitting data to and/or from at least one of the recipe storage and flow control MCU's, allowing the operator to monitor, modify and/or control the process parameters during a molding cycle and/or to create a modified or new recipe for subsequent storage on the recipe storage MCU.
摘要:
Systems, methods, and devices for performing channel estimates to address the Doppler Effect in wireless communications are described herein. One aspect of the disclosure provides an apparatus for wireless communication. The apparatus comprises a receiver configured to receive coded data tones during a first symbol over a communication channel. The apparatus further comprises a processor. The processor is configured to estimate a common phase offset and amplitude of the communication channel based on pilot tones received over the communication channel. The processor is configured to determine, prior to decoding, a residual phase offset per data tone based on a phase difference between an estimate of the coded data tones and a reference symbol. The processor is configured to estimate update channel state information of the communication channel based on the determined estimated common phase offset, amplitude, and the determined residual phase offset per data tone.
摘要:
There is provided a disk drive including a disk drive base, a disk rotatably coupled to the disk drive base, and a spindle motor attached to the disk drive base and configured to support the disk for rotating the disk with respect to the disk drive base. The disk drive further includes a filter component. The filter component includes a filter housing coupled to the disk drive base, and a filter element disposed within the filter housing for filtering disk rotation induced airflow. The filter element includes a coarse section and a fine section. The coarse section has a porosity greater than a porosity of the fine section.
摘要:
A preservative system and a personal care composition containing that system is provided which includes the preservative combination of a C10-C24 acyl glycinate salt and a hydroxyethyl sulfonate salt. This preservative system is effective against gram negative bacteria, particularly Pseudomonas aeruginosa.
摘要:
A novel disk drive includes a disk and a spindle motor to which the disk is attached to rotate about an axis of rotation. The disk drive also includes a stationary plate facing and disposed over the disk, wherein the stationary plate includes a plurality of grooves through which rotation-induced air flows from an inlet end to an outlet end. The disk drive also includes a recirculation filter coupled to and immediately adjacent said outlet end of said plurality of grooves.
摘要:
A method for processing multiple Component Carriers (CCs) to be aggregated for transmission is provided in the present invention, the method comprising the steps of: acquiring a time domain signal of each of the multiple CCs; applying multiple fixed phase rotations respectively to the acquired time domain signal by utilizing phase rotation values in a set of phase rotations, so as to obtain multiple phase rotation versions of each CC; randomly selecting one of the multiple phase rotation versions of each CC to respectively constitute multiple candidate transmission groups, and acquiring an amplitude sum of the phase rotation versions for each of the multiple candidate transmission groups; determining a candidate transmission group having the minimum amplitude sum; and transmitting multiple phase rotation versions in the determined candidate transmission group having the minimum amplitude sum. The present invention substantively provides a general solution capable of minimizing CM/PAPR of aggregated CCs for UL and DL.
摘要:
A personal care composition is provided which includes a fragrance component selected from the group consisting of hexyl acetate, dihydromyrcenol, phenyl ethyl alcohol, benzyl acetate and mixtures thereof, and from 1 to 30% of a C10-C24 fatty acid material by weight of the composition, wherein from 60 to 85% by weight of the fatty acid material is a salt and a remainder of the fatty acid material is a free fatty acid.