Abstract:
An object of the present disclosure is to provide a beamforming method for a massive MIMO system. Specifically, S routes of data streams to be transmitted via the antenna array are subjected to horizontal direction baseband beamforming processing, to obtain T routes of data streams; the T-routes of data streams are subjected to vertical direction digital beamforming processing to map the T routes of data streams onto a corresponding channel according to a predetermined rule; a data stream on each channel is subjected to analog beamforming processing to map the data stream on each channel onto a corresponding array element of the antenna array for transmission. Compared with the prior art, the present disclosure implements the following advantages: by combining the advantages of RF beamforming with the BB beamforming with limited antennas at the FH, a good flexibility regarding BB algorithm selection and RF beam design is provided, which balances the complexity and performance between BB and RF and implements a massive MIMO in sub-6 GHz.
Abstract:
The invention relates to a yellow light afterglow material and a preparation method thereof as well as an LED illuminating device using the same. The yellow light afterglow material comprises the chemical formula of aY2O3.bAl2O3.cSiO2:mCe.nB.xNa.yP, where a, b, c, m, n, x and y are coefficients, and a is not less than 1 but not more than 2, b is not less than 2 but not more than 3, c is not less than 0.001 but not more than 1, m is not less than 0.0001 but not more than 0.6, n is not less than 0.0001 but not more than 0.5, x is not less than 0.0001 but not more than 0.2, and y is not less than 0.0001 but not more than 0.5; wherein Y, Al and Si are substrate elements, and Ce, B, Na and P are activators. The yellow light afterglow material is prepared by the following steps: weighing oxides of elements or materials which can generate oxides at high temperature by molar ratio as raw materials, evenly mixing and then sintering the raw materials at 1200-1700° in a reducing atmosphere.
Abstract:
A method and system for processing email messages are disclosed. In at least one embodiment, the method includes receiving a first signal input indicative of a request that contents of a selected email message be displayed on a display associated with a client computer device, wherein the contents are stored in a memory device associated with a server computer device and include contents of at least one other email message. The method further includes causing displaying of the contents of the selected email message for reviewing by the user. The method additionally includes making a determination of whether the contents of the at least one other email message have been reviewed by the user during the user's review of the contents of the selected email message, and providing an indication regarding whether or to what extent the at least one other email message has been read based upon the determination.
Abstract:
The present invention relates to the fields of radioactive material detection and X-ray radiation imaging inspection, and provides a system and method for performing radioactive material detection and X-ray radiation imaging inspection simultaneously at the same place, thereby solving the problem that the two means have to be conducted separately, as in the prior art. The integrated system of the invention comprises: an X-ray NII system for performing X-ray radiation imaging inspection on the object under examination; a radiation monitor placed adjacent to the X-ray NII system device to detect the radioactive rays emitted by the object under examination; the radiation monitor sets, within the detection energy region thereof, a lower limit of detection to distinguish the energy region of the detected X-rays emitted by the X-ray detection device from the energy region of the radioactive rays emitted by the object under examination, and detects the energy in the energy region higher than said lower limit of detection. The present invention realizes a compact integration of the two devices, and greatly saves space and time resources.
Abstract:
A method of assembling composite structures from objects in fluid includes providing a plurality of objects, each having a preselected size, shape, and spatial distribution of surface structural features characterizing a surface roughness; dispersing the objects into the fluid; and introducing a depletion agent. The depletion agent includes a plurality of particles having a size distribution preselected causing an attractive force arising from a depletion attraction between at least a first object and second object of the plurality in at least one relative position and orientation based on the preselected spatial distribution of surface structural features on the first and second objects, and the depletion attraction between the first and second objects forms at least one rigid bond or slippery bond at or proximate to respective surface portions based on the preselected spatial distribution of surface structural features on the first and second objects to form a two-object composite structure.
Abstract:
The present invention relates to the fields of radioactive material detection and X-ray radiation imaging inspection, and provides a system and method for performing radioactive material detection and X-ray radiation imaging inspection simultaneously at the same place, thereby solving the problem that the two means have to be conducted separately, as in the prior art. The integrated system of the invention comprises: an X-ray NII system for performing X-ray radiation imaging inspection on the object under examination; a radiation monitor placed adjacent to the X-ray NII system device to detect the radioactive rays emitted by the object under examination; the radiation monitor sets, within the detection energy region thereof, a lower limit of detection to distinguish the energy region of the detected X-rays emitted by the X-ray detection device from the energy region of the radioactive rays emitted by the object under examination, and detects the energy in the energy region higher than said lower limit of detection. The present invention realizes a compact integration of the two devices, and greatly saves space and time resources.
Abstract:
A processor of an electronic device can implement methods that facilitate navigating a webpage. The methods may include: receiving (602) data for a target webpage and storing (604) the target webpage data to a processor readable storage medium of the electronic device and determining (606) whether the target webpage's uniform resource locator (URL) was selected from a search results page generated by a search engine executing a search string. If the target webpage's URL was selected from a search results page, performing (650) a particular action. The particular action can include steps of: searching (851) the stored target webpage data for one or more instances of one or more parts of the search string, prioritizing (852) the one or more instances, and resizing (858) one or more parts of the target webpage having the one or more instances with the highest priority.
Abstract:
An antenna system may include a backplate that includes an end portion. The antenna system may also include first and second antennas spaced apart from each other along the end portion of the backplate. The antenna system may additionally include a parasitic element between the first and second antennas along the end portion of the backplate.
Abstract:
A dental implant system including a prosthodontic base having first and second opposing surfaces, the first surface configured to conform to and abut an edentulous ridge of a patient, the second surface having a post extending outwardly therefrom, the prosthodontic base defining at least one hole for receiving an implant. The system further including a restoration having at least one artificial tooth, the restoration defining an opening to receive the post, the restoration being attachable to the post. The system further includes an implant having a head and a body, the body of the implant insertable through the hole in the prosthodontic base and into a bone of the patient for attaching the prosthodontic base to the edentulous ridge. The dental implant system providing for efficient, minimum invasive and permanent teeth replacement for the patient. A method of providing one or more teeth replacement for a patient is also disclosed.
Abstract:
A method of operating an electronic device includes providing a plurality of antenna elements, evaluating a wireless communication performance criterion to obtain a performance evaluation, and assigning a first one of the plurality of antenna elements to a main wireless signal reception and transmission path and a second one of the plurality of antenna elements to a diversity wireless signal reception path based on the performance evaluation.