Abstract: The invention relates to the field of railway, and discloses a hypereutectoid rail and a manufacturing method thereof, which includes rolling a steel billet containing V and Ti, wherein, based on its total weight, the steel billet contains C of 0.85-0.94 wt %, and the relation between the start rolling temperature Tstart/final rolling temperature Tfinal and the content of V and the content of Ti satisfies the following formulas: Tstart=1100+a([V]+5[Ti]), Tfinal=750+b([V]+5[Ti]), wherein, 500?a?800, 300?b?500; based on its total weight, the steel billet contains V of 0.03-0.08 wt %, Ti of 0.011-0.02 wt %, and [V]+5[Ti]: 0.12-0.14 wt %. The hypereutectoid rail manufactured with the method has excellent comprehensive performance of strength and toughness.

Abstract: An IC manufacturing method includes forming first mandrels and second mandrels over a substrate; and forming first spacers on sidewalls of the first mandrels and second spacers on sidewalls of the second mandrels. Each of the first and second spacers has a loop structure with two curvy portions connected by two lines. The method further includes removing the first and second mandrels; and removing the curvy portions from each of the first spacers without removing the curvy portions from the second spacers. The second spacers are used for monitoring variations of the IC fabrication processes.

Abstract: A keyswitch structure includes a base plate, a keycap, a first support, and a second support. The keycap is located above the base plate. The first support is connected to and between the keycap and the base plate and has an upper connection portion, a lower connection portion, and a protruding limitation portion. The upper connection portion is located between the lower connection portion and the protruding limitation portion. The first support is rotatably connected to the keycap and the base plate through the upper connection portion and the lower connection portion respectively. The protruding limitation portion is located close to and under the cap body. The second support is connected to and between the keycap and the base plate. The keycap moves up and down relative to the base plate through the first support and the second support.

Abstract: The invention relates to a mixed photonic lock structure having intelligent identification and a method thereof. It comprises a mixed photonic key inserted into a mixed photonic lock body. A power supply unit of the mixed photonic lock body supplies the required power to the mixed photonic lock body and the mixed photonic key. An infrared (IR)-LED in the mixed photonic lock body emits a corresponding signal to an infrared photo detector (IR-PD) in the mixed photonic key. When the comparison conducted by a signal comparison circuit of the mixed photonic key matches, a RGB-LED emits a light signal password to a RGB PD of the mixed photonic lock body to control the lock to unlock after the comparison conducted by a signal comparison circuit of the mixed photonic lock body matches.

Abstract: The invention relates to a mixed photonic lock structure having intelligent identification and a method thereof. It comprises a mixed photonic key inserted into a mixed photonic lock body. A power supply unit of the mixed photonic lock body supplies the required power to the mixed photonic lock body and the mixed photonic key. An infrared (IR)-LED in the mixed photonic lock body emits a corresponding signal to an infrared photo detector (IR-PD) in the mixed photonic key. When the comparison conducted by a signal comparison circuit of the mixed photonic key matches, a RGB-LED emits a light signal password to a RGB PD of the mixed photonic lock body to control the lock to unlock after the comparison conducted by a signal comparison circuit of the mixed photonic lock body matches.

Abstract: A two-dimensional material plasmonic laser (device) is provided with a surface plasmonic cavity and an atomically thin semiconductor monolayer gain medium disposed on the surface plasmonic cavity. Under optical pumping or electrical pumping, the surface plasmonic cavity provides a laser feedback mechanism by coupling electron-hole pairs confined in the atomically thin semiconductor monolayer gain medium and the surface plasmon modes in the dark-mode surface plasmonic cavity, and a laser light is emitted from the two-dimensional material plasmonic laser.

Abstract: A remote operated vehicle for selectively harvesting a target species in an aquatic environment is disclosed. The vehicle may include a chassis defining a central channel and being configured to hold a plurality of attachments mounted to the chassis. The plurality of attachments may include at least one thruster configured to propel the vehicle in the aquatic environment, and at least one electronics containment unit configured to store one or more electronic devices for controlling an operation of the vehicle. The vehicle may also include a containment unit connected to the chassis and configured to store the target species during harvesting, and at least one stunning device configured to stun the target species. The vehicle may further include at least one suction device positioned at a rear portion of the chassis and being configured to generate flow in a direction extending through the channel to cause the target species to flow into the containment unit.

Abstract: To provide the continuous playback of content, a content server may provide code to a requesting device that causes the requesting device to play streaming content delivered in chunks or other portions without disruption in playback. The requesting device may execute the code by a browser or other application, which may cause the requesting device to determine whether a data buffer is empty or nearly empty and request additional content from a streaming server if the data buffer is empty or nearly empty. The process may be repeated a number of times each second for the duration of the playback of the content in order to enable continuous playback of the content regardless of any throttling of the code execution or content playback attempted to be imposed by a browser or other application.

Abstract: A nozzle adjustment member for a sprinkler is revealed. A plurality of nozzle tubes aligned in at least one row is positioned on a wall of a hollow pipe. A top end of the nozzle tube is projecting to an outside of the hollow pipe. At least one pivot support is disposed on the outside of the hollow pipe. Each pivot support is pivoted with an adjustment piece having a plurality of guiding openings. The guiding openings are positioned over the plurality of nozzle tubes correspondingly. A nozzle cover is connected with the outside of the hollow pipe for covering the adjustment piece. A plurality of long through holes for mounting the corresponding nozzle tubes is arranged at the nozzle cover. Around a pivot hole, the adjustment piece swings so as to drive the plurality of nozzle tubes moving at an angle and different water distribution patterns are provided.

Abstract: A method of producing preconfigured arrangements of mobile shape-designed particles. The method includes providing a composite structure comprising a substrate and a layer of particle material over a surface of the substrate; lithographically producing a plurality of shaped-designed particles from the layer of particle material such that the plurality of shaped-designed particles remain substantially in a layer proximate the substrate; and at least one of subsequent to or in conjunction with the lithographically producing, immersing the plurality of shaped-designed particles the substrate in a fluid material, at a preselected temperature. The fluid material comprises a depletion agent having particles having sizes and a volume fraction to provide depletion attraction between at least a portion of the shaped-designed particles and the substrate such that the shaped-designed particles remain substantially in the layer proximate the substrate.

Abstract: A fluid valve structure capable of outputting constant flow and constant pressure is provided. A control handle is adapted to control turning of a ball valve. The ball valve is formed with first, second and third openings. The openings are arranged at 90 degrees each other. The diameters of the first, second and third openings can be set according to the required flow and pressure. The fluid passes the first, second and third openings through an annular guide groove and guide holes of a water inflow connector, enabling the fluid gathered to the small diameter pipe portion to output constant flow and constant pressure. The user can observe the state of the fluid through glass windows provided on the small diameter pipe portion. The control handle controls the turning of the ball valve for the openings to be located in TEST, OFF, and DRAIN state, respectively.

Abstract: This disclosure provides systems, methods, and apparatus related to optical modulators. In one aspect, a device includes a substrate, a first electrically insulating material disposed over the substrate, a first graphene layer and a second graphene layer disposed in the first electrically insulating material and being separated by the first electrically insulating material, and a waveguide disposed on the first electrically insulating material. At least a portion of the second graphene layer overlays at least a portion of the first graphene layer. The waveguide overlays both the first graphene layer and the second graphene layer.

Abstract: The present invention discloses a user equipment context management method, apparatus, and device, and relates to the field of communications technologies. The method includes: receiving, by a first control plane entity, a service request message of user equipment UE, where the service request message includes service information requested by the UE; obtaining location information of the UE, determining, based on the service information requested by the UE, a mobility level of a service requested by the UE, determining, based on the location information of the UE and the mobility level of the service, an effective range of a context of a network resource bearing the service of the UE, and managing the context based on the effective range of the context.

Abstract: A mobile device includes a ground element, a first radiation element, a second radiation element, a matching circuit, and a first metal frame. The first radiation element is coupled to a first grounding point on the ground element. The second radiation element is coupled through the matching circuit to a second grounding point on the ground element. A first coupling gap is formed between the second radiation element and the first radiation element. The first metal frame is coupled to a connection point on the first radiation element. A second coupling gap is formed between the second radiation element and the first metal frame. An antenna structure is formed by the first radiation element, the second radiation element, the matching circuit, and the first metal frame. A signal source is coupled to a feeding point on the first radiation element, so as to excite the antenna structure.

Abstract: An encapsulation method of electronic components comprises steps as follows: preparing electronic components with cylindrical bodies wherein a cylindrical body has front and rear ends made of metals and a middle end made of ceramics and the front end or the rear end features an outer diameter greater than the middle end of the cylindrical body; preparing a mould consisting of upper and lower moulds; encasing the cylindrical bodies inside the upper and lower moulds, injecting heated and softened protective materials into the mould in which protective materials as protective layers are coated on the cylindrical bodies; injecting the cylindrical bodies removed from the upper and lower moulds into a roller in which excessive protective layers on the front and rear ends of the cylindrical bodies are de-coated.

Abstract: Disclosed are an amine solvate of a sodium-glucose linked transporter (SGLT) inhibitor, and a preparation method and application thereof. The SGLT inhibitor is (1S,2S,3S,4R,5S)-5-(3-((2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methyl)-4-ethylbenzyl)-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol. Further provided is a crystalline compound of the amine solvate, a pharmaceutical composition comprising the amine solvate, and an application of the amine solvate in preparing an SGLT-inhibiting pharmaceutical product.

Abstract: Disclosed embodiments provide techniques for intelligent media sharing with visualized positioning layout in real time. A floor plan is retrieved corresponding to the physical location of a sender electronic device. A zone boundary corresponding to the physical location of the sender electronic device is determined. A list of potential recipient electronic devices within the zone boundary is generated. A floor plan view is rendered on the sender electronic device. A graphical representation of the potential recipient electronic devices on the floor plan view is rendered, overlaid in a semi-transparent manner with a media selection interface on the sender electronic device. A selection is received for one or more media items using the media selection interface. A send request is received for one or more potential recipients, resulting in sending the one or more media items to at least one potential recipient in response to receiving a user interface request action.

Abstract: The present application discloses an access method, apparatus, device, and system, and belongs to the field of communications technologies. The method includes: receiving, by a selection function entity SFE, an access request of user equipment UE sent by a radio access network node RAN node; determining a usage type of the UE based on the access request of the UE; and selecting, for the UE based on the usage type of the UE, a node that is in a dedicated core network and that can serve the UE, where the node that is in the dedicated core network and that can serve the UE corresponds to the usage type of the UE. Therefore, a node accessed by the UE is the node in the dedicated core network corresponding to the UE, and this ensures that the node can complete security verification of the UE.

Abstract: A hierarchical image classification method and system are provided. The hierarchical image classification method derives a coarse classification result of an image by analyzing the image according to a coarse classification model, derives at least one fine classification model by inquiring a classification relation table according to the coarse classification result, derives at least one level information by inquiring a level relation table according to the at least one fine classification model, retrieves at least one coarse feature descriptor from the coarse classification model according to the at least one level information, and decides at least one fine classification result according to the at least one fine classification model and the at least one coarse feature descriptor. The hierarchical image classification method may inquire the classification relation table and the level relation table repeatedly to continuously decide other fine classification result(s).

Abstract: The present invention relates to a wound stator of an alternator, which comprises: a stator and a group of wires wound thereon. The group of wires comprises a plurality of abreast wires sequentially embedded in corresponding grooves of the stator, and the abreast wires in the grooves are oriented in a radial direction of the stator.