Abstract: A piston limiting structure, including: a cylinder, a piston, and a flange provided with a limiting piece, the cylinder has a piston hole perpendicular to an axial direction of the cylinder and penetrating through the cylinder, and a projection of the piston hole in a penetrating direction is circular. The piston is disposed in the piston hole in a form-fit manner and is slid in the piston hole in a reciprocating manner. A side wall of the piston is provided with a thrust groove, a bottom surface of the thrust groove forms a thrust surface on the side wall of the piston, and the thrust groove does not penetrate through two ends of the side wall of the piston along an axial length of the piston. The limiting piece abuts against the thrust surface.

Abstract: An electrical connector includes at least one electrical module. The electrical module includes: an insulating body, where multiple first accommodating slots are concavely provided on a first side toward a second side of the insulating body; multiple first terminal assemblies, respectively accommodated in the corresponding first accommodating slots; and a first grounding member, having multiple first spokes and multiple second spokes. Each first terminal assembly includes a first insulating block, a pair of first signal terminals, and a first shielding shell. Each first shielding shell has a first shielding side surface exposed to the first side. Each first spoke is in mechanical contact with the first shielding shells of a same electrical module, and each second spoke is in contact with the first shielding side surface of the corresponding first shielding shell, thus achieving conduction between the first shielding shells and the first grounding member.

Abstract: A radiation therapy system is disclosed. The radiation therapy system includes a gantry, a first radiation source, and a second radiation source. The gantry is configured to have a cavity extending in a direction along a rotation axis, and the cavity is configured to house a target object. The first radiation source is mounted on the gantry, and configured to emit a treatment beam to a treatment area of the target object. The second radiation source is mounted on the gantry, and configured to emit an imaging beam to an imaging area of the target object. The treatment area partially overlaps the imaging area. A rotation plane of the first radiation source and a rotation plane of the second radiation source are distributed in a direction along the rotation axis.

Abstract: Disclosed are video access methods and apparatuses, a client, a terminal, a server and a memory medium, wherein the method comprises: receiving entrance presentation data of a video-updated user, wherein the video-updated user includes a user who has a video updated among followed users; displaying an entrance presentation bar on the current terminal interface, and presenting at least one video access entrance in the entrance presentation bar based on the entrance presentation data; and displaying, responsive to a client user's preset operation on any video access entrance in the entrance presentation bar, a video play page corresponding to the preset operation.

Abstract: A wire comprising a wire core with a surface, the wire core having a coating layer superimposed on its surface, wherein the wire core itself consists of: (a) pure silver consisting of (a1) silver in an amount in the range of from 99.99 to 100 wt.-% and (a2) further components in a total amount of from 0 to 100 wt.-ppm or (b) doped silver consisting of (b1) silver in an amount in the range of from >99.49 to 99.997 wt.-%, (b2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to <5000 wt.-ppm and (b3) further components in a total amount of from 0 to 100 wt.-ppm, or (c) a silver alloy consisting of (c1) silver in an amount in the range of from 89.99 to 99.5 wt.-%, (c2) at least one alloying element selected from the group consisting of nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount in the range of from 0.5 to 10 wt.

Abstract: The video processing method, device, terminal, and storage medium are provided; the method includes: acquiring a video captured by a user and marking the video with original sound in the case that the video is a video with original sound; performing data separation on the video with original sound according to the mark, and extracting the original audio from the video with original sound; the extracted original sound audio is used for video shooting by other users.

Abstract: A wire comprising a wire core with a surface, the wire core having a coating layer superimposed on its surface, wherein the wire core itself consists of: (a) pure silver consisting of (a1) silver in an amount in the range of from 99.99 to 100 wt.-% and (a2) further components in a total amount of from 0 to 100 wt.-ppm or (b) doped silver consisting of (b1) silver in an amount in the range of from >99.49 to 99.997 wt.-%, (b2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to <5000 wt.-ppm and (b3) further components in a total amount of from 0 to 100 wt.-ppm, or (c) a silver alloy consisting of (c1) silver in an amount in the range of from 89.99 to 99.5 wt.-%, (c2) at least one alloying element selected from the group consisting of nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount in the range of from 0.5 to 10 wt.

Abstract: Disclosed are video access methods and apparatuses, a client, a terminal, a server and a memory medium, wherein the method comprises: receiving entrance presentation data of a video-updated user, wherein the video-updated user includes a user who has a video updated among followed users; displaying an entrance presentation bar on the current terminal interface, and presenting at least one video access entrance in the entrance presentation bar based on the entrance presentation data; and displaying, responsive to a client user's preset operation on any video access entrance in the entrance presentation bar, a video play page corresponding to the preset operation.

Abstract: The video processing method, device, terminal, and storage medium are provided; the method includes: acquiring a video captured by a user and marking the video with original sound in the case that the video is a video with original sound; performing data separation on the video with original sound according to the mark, and extracting the original audio from the video with original sound; the extracted original sound audio is used for video shooting by other users.

Abstract: The present disclosure provides a pneumatic tool with shock absorber. The pneumatic tool has a main body which is adapted for an air supply to be connected thereto. With the air supply, a striker disposed in the main body reciprocates to generate impulse and vibration. A damper, including an elastic member and an airtight compartment, is disposed at the rear end of the reciprocation path of the striker. Therefore, the elastic member and the airtight compartment can absorb the shock produced backwardly by the striker. The vibration and the noise can be reduced for avoiding occupational injury caused thereby.

Abstract: The present invention discloses an electronic device, a storage medium and a method for transferring a file. The method for transferring the file includes: submitting a file segment to be transferred to a target device to a transferring queue in a main process; waiting for an interrupt signal; monitoring whether the main process produces upload traffic during a preset time period, and if the main process does not produce the upload traffic during the preset time period, sending out an interrupt request which comprises information that the main process does not produce the upload traffic during the preset time period; stopping waiting for the interrupt signal when a response from the target device or the interrupt request are received.

Abstract: The present invention discloses an electronic device, a storage medium and a method for transferring a file. The method includes: acquiring transferring parameters of at least one file segment that is already transferred to a target device, wherein the transferring parameters include size and transferring rate; calculating a transferring rate varying index according to the transferring parameters; determining whether the transferring rate varying index is less than a predefined first threshold value, and if the transferring rate varying index is less than the first threshold value, updating a current transferring state with a different state; acquiring a coefficient corresponding to the current transferring state, and setting a size of a current file segment as a product of the coefficient and a size of a last transferred file segment; cutting out the current file segment from the file according to the set size of the current file segment for transferring.

Abstract: A process-orientated design method for machine tool structures comprises the steps of: (A) Defining design conditions including initial configurations, cutting requirements and boundary conditions for the machine tool; (B) Calculating cutting ability to generate information realizing a relationship between a maximum cutting depth and a spindle speed of the machine tool based on the initial configurations and the cutting requirements; (C) Performing an optimization to generate a frequency range for optimization based on the information relating the maximum cutting depth and the spindle speed; (D) Performing structural topology optimization to generate an optimized model based on the frequency range for optimization, the initial configurations and boundary conditions; and (E) Determining whether the optimized model fits the constraint condition; if positive, ends the design steps, and otherwise repeats steps (B)˜(D) until an optimized model fits the constraint condition appears.

Abstract: The present invention discloses an electronic device, a storage medium and a method for transferring a file. The method for transferring the file includes: submitting a file segment to be transferred to a target device to a transferring queue in a main process; waiting for an interrupt signal; monitoring whether the main process produces upload traffic during a preset time period, and if the main process does not produce the upload traffic during the preset time period, sending out an interrupt request which comprises information that the main process does not produce the upload traffic during the preset time period; stopping waiting for the interrupt signal when a response from the target device or the interrupt request are received.

Abstract: The present invention discloses an electronic device, a storage medium and a method for transferring a file. The method includes: acquiring transferring parameters of at least one file segment that is already transferred to a target device, wherein the transferring parameters include size and transferring rate; calculating a transferring rate varying index according to the transferring parameters; determining whether the transferring rate varying index is less than a predefined first threshold value, and if the transferring rate varying index is less than the first threshold value, updating a current transferring state with a different state; acquiring a coefficient corresponding to the current transferring state, and setting a size of a current file segment as a product of the coefficient and a size of a last transferred file segment; cutting out the current file segment from the file according to the set size of the current file segment for transferring.

Abstract: This invention provides one-pot reaction for digesting polycarbonate waste with alkylene glycol in the presence of a basic catalyst at 180° C. under normal atmospheric pressure. The digested product mixture was found to consist of bisphenol A (BPA) and monoalkoxylated and bisalkoxylated diols of BPA. Alkoxylation of BPA and monoalkoxylated diols of BPA is performed by adding urea or urea derivative (or carbonic acid ester or amine ester) to the digested product mixture at a high temperature under normal atmospheric pressure to obtain the final product, i.e., bisalkoxylated diols of BPA in high yield. The bisalkoxylated diols of BPA may be used as raw materials to synthesize polymer such as polyurethane (PU) or polyester.

Abstract: This invention provides one-pot reaction for digesting polycarbonate waste with alkylene glycol in the presence of a basic catalyst at 180° C. under normal atmospheric pressure. The digested product mixture was found to consist of bisphenol A (BPA) and monoalkoxylated and bisalkoxylated diols of BPA. Alkoxylation of BPA and monoalkoxylated diols of BPA is performed by adding urea or urea derivative (or carbonic acid ester or amine ester) to the digested product mixture at a high temperature under normal atmospheric pressure to obtain the final product, i.e., bisalkoxylated diols of BPA in high yield. The bisalkoxylated diols of BPA may be used as raw materials to synthesize polymer such as polyurethane (PU) or polyester.

Abstract: A method and an apparatus for transmitting real-time streaming data are provided. The apparatus has a first terminal, a second terminal, and a relay server. Real-time streaming transmission paths between the first terminal and the relay server as well as between the second terminal and the relay server are established, and the first and the second terminals can obtain information from each other. Whether the first and the second terminals are directly connectable or tested. When the first and the second terminals can be connected directly, the first terminal alters the real-time streaming transmission path directly to the second terminal without passing through the relay server. When the second terminal can be connected directly to the first terminal, the second terminal alters the real-time streaming data transmission path directly to the first terminal with passing through the relay server.

Abstract: An optical fiber amplifier includes a length of silica optical fiber having a core doped with neodymium, a first cladding and a second cladding each with succeeding lower refractive indices, where the first cladding diameter is less than 10 times the diameter of the core. The doping concentration of the neodymium is chosen so that the small signal absorption for 816 nm light traveling within the core is less than 15 dB/m above the other fiber losses. The amplifier is optically pumped with one laser into the fiber core and with another laser into the first cladding.

Abstract: A transmission system for network with communication quality indicating capability and the method of the same, which is capable of providing real-time communication quality and display thereof at a station of the system.