Abstract: A polymer three-dimensional (3D) printing methodology is disclosed for freeform fabrication of polymeric structures under ambient conditions without the use of printed support structures. The build material can be dissolved in a suitable solvent for 3D printing. The polymer solution can be printed in (e.g., continuously printed using a moving dispensing nozzle) a yield-stress support bath to form an intermediate article. The intermediate article may be liquid or only partially coagulated after being printed into the yield-stress support bath. The yield-stress support bath may be at least partially disposed within a container, and the container may be immersed in a post-treatment coagulation solution to remove some or all of the solvent, causing the build material to fully solidify to form a finished article from the intermediate article.

Abstract: Embodiments of the present disclosure provide for three dimensional printing apparatuses, methods of three dimensional printing, and the like.

Abstract: A method for phosphorus removal and recovery using an organic carbon source of urban sewage, including: first filling a biofilm reactor with sewage; stirring under anaerobic conditions, phosphorus being released from a polyphosphate biofilm using an organic carbon source in the sewage; discharging a portion of the sewage after the aforementioned treatment into a recovery tank and storing same as a recovery liquid; performing aerobic aeration on the remaining part of the sewage after anaerobic treatment, such that phosphorus is absorbed by the polyphosphate biofilm until the concentration of phosphorus reaches a requirement for discharge; turning off the aeration device and discharging the sewage; returning the recovery liquid to the biofilm reactor, simultaneously adding sewage to fill the reactor, and repeating the aforementioned steps multiple times; and obtaining a phosphorus recovery liquid when the concentration of phosphorus in the recovery liquid reaches the requirements for a phosphorus recovery proce

Abstract: An interference lens and a projection ambient lamp are provided. The interference lens includes: an interference sheet with a first surface and a second surface opposite to the first surface, the first surface being a rough surface; and a reflective film provided at the interference sheet; wherein light is reflected by the reflective film to form an interference pattern. The projection ambient lamp includes the foregoing interference lens, a light source and a focusing lens; light emitted from the light source passes through the interference lens and is reflected by the reflective film to form an interference pattern, which is focused by the focusing lens and projected on a medium. The present disclosure realizes simplification of the structure by providing a reflective film at the interference lens, hence utilization of light energy is higher, power consumption is lower, manufacturing cost is lower, and projection effect is better.

Abstract: A three-dimensional (3D) printing methodology is disclosed for freeform fabrication of hydrophobic structures without the use of printed support structures. The build material is directly printed in and supported by a fumed silica-containing yield-stress support bath to form an intermediate article in the support bath material. The intermediate article may be liquid or only partially solidified after being printed into the support bath material. The intermediate article is then heated or irradiated with ultraviolet radiation to initiate cross-linking to solidify the printed intermediate article, forming a finished article.

Abstract: A network flow measurement method is applicable to a system including a network measurement device and a control plane device. The network flow measurement method includes measuring, by the network measurement device, first data, where the first data includes a first-type data structure, the first-type data structure includes first measurement information of a flow, and the first measurement information corresponds to a bit of a keyword of the flow, and sending, by the network measurement device, the first data to the control plane device.

Abstract: The present invention provides a wireless communication method of an electronic device, wherein the wireless communication method includes the steps of: building a link with peer electronic device; receiving downlink data information from the peer electronic device; referring to the downlink data information to determine wake and doze information of the electronic device; and transmitting the wake and doze information of the electronic device to the peer electronic device.

Abstract: An upright soundbar with projection function including an upright body, a projection module, a camera module, a computing module and a base is provided. A first projection lens of the projection module is tilted, a first projection angle is between a first projection optical axis of the first projection lens and a horizontal line, the first projection angle ranges from 15 degrees to 60 degrees, a projection direction of the projection module and a photography direction of the camera module are reversed with respect to each other, and the upright body is movable along a vertical direction with respect to the base.

Abstract: A wireless signal extending method is disclosed. A link between an electronic device and a first network node access point (AP) is generated. The electronic device connects to the first network node AP according to backhaul information. It is determined whether a location where the quality of connection signals with the first network node AP meets a preset value is discovered. If a first location where the quality of connection signals with the first network node AP meets the preset value is discovered, a second network node AP is placed at the first location. The second network node AP is enabled to enter in a pairing mode. A push button configuration (PBC) function of the first network node AP is remotely triggered to automatically pair the first network node AP and the second network node AP.

Abstract: A three-dimensional (3D) printing method and apparatus are disclosed for freeform fabrication of metal articles. 3D printed articles are formed from a build material comprising metal powder(s), polymer(s), and solvent(s). A coagulation agent, such as a nebulized non-solvent, is disposed onto/about the build material during 3D printing to cause at least partial solidification of the build material to form a green body structure. Multiple build materials can be mixed at a variable ratio to achieve a composition gradient through the green body structure. The 3D printed green body structure can be heated to remove some or all of the polymer, solvent, and/or for debinding. The debinded green body structure can be sintered at a specific sintering temperature or over a temperature gradient, for a period of time, in accordance with the sintering properties of the particular metal powder in the debinded green body structure, to form a finished metal part.

Abstract: A method and apparatus for controlling game applications are provided. In the method, when an operating system receives a game starting command, the operating system determines a manner to start a corresponding game application according to whether the game application has resided in a memory, and when a cold boot manner is used, the operating system triggers the game application to report an amount of memory required currently by the game application, and determines whether a requirement of running the game application is met according to the amount of memory required and an amount of memory currently used, or the operating system ensures to meet the requirement of running the game application through background application freezing and clearing.

Abstract: The present invention relates to the technical field of charging wireless earphones, in particular to a wireless earphone charging case convenient for replacing outer shells. Its outer shell has an upper shell and a lower shell that are capable of being disengaged/engaged from/with each other, wherein a containing space is arranged inside the lower shell, a charging chamber is arranged within the containing space, a screw slot is arranged on bottom of the charging chamber, the bottom of the lower shell is fixed to the screw slot on the bottom of the charging chamber by means of a metal screw.

Abstract: A wireless communication device includes a channel state information (CSI) estimation circuit and a transmitter (TX) circuit. The CSI estimation circuit performs CSI estimation for generating CSI data. The TX circuit transmits a first frame at a specific physical layer (PHY) data rate to another wireless communication device. The first frame carries the CSI data. The specific PHY data rate is higher than a basic PHY data rate for normal acknowledgement (ACK) frame transmission.

Abstract: A radio-frequency chip is provided, and relates to the field of chip technologies, to reduce a component loss caused by redundant components in the radio-frequency chip. The radio-frequency chip includes a phased array, the phased array includes a plurality of branches, and each of the plurality of branches includes a transmitting path, a receiving path, a common path, and a phase shifter. The phase shifter includes a first phase shift unit, a second phase shift unit, and a third phase shift unit. The first phase shift unit is located on the transmitting path, the second phase shift unit is located on the receiving path, and the third phase shift unit is located on the common path.

Abstract: A method for a service-providing NAN device to extend the service range of NAN communication is provided. The service-providing NAN device advertises a publication of a service. The service-providing NAN device receives a subscription to the service from an end-user NAN device. The service-providing NAN device establishes a data path from the service-providing NAN device to the end-user NAN device through one or more intermediate NAN devices. The service-providing NAN device transfers data of the service from the service-providing NAN device to the end-user NAN device over the data path.

Abstract: A multi-radio device includes two or more radio subsystems coupled to a packet traffic arbitration (PTA) module. The PTA module receives a first request for radio communication from a first radio subsystem, where the first request indicates a first usage duration. After granting the first request, the PTA module receives a second request for radio communication from a second radio subsystem. The second request indicates a second usage duration. The PTA module sends a rejection of the second request to the second radio subsystem, where the rejection indicates a remaining time of the first usage duration.

Abstract: The present invention provides a wireless communication method of an access point. The wireless communication method comprises the steps of: establishing a cache table comprising a plurality of reference MAC and corresponding PMKs and reference PMKIDs; receiving an association request from a station; reading a MAC address of the station and a PMKID from the association request; if the MAC address of the station and the PMKID do not match items of the cache table, performing a calculation on the PMKID to obtain an original PMKID; determining if the original PMKID matches any one of the reference PMKIDs within the cache table; and if the original PMKID matches one reference PMKID within the cache table, determining that the reference MAC recorded in the cache table and the MAC address belong to the same station.