Abstract: A method for selecting a grasp posture of a dual-arm robot includes: setting a fitness value range, an iteration quantity threshold, and a fitness function; calculating the fitness value of the population, determining whether the population is within the value range, ending an iteration if the population is within the value range or continuing to determine whether a quantity of iterations reaches the iteration quantity threshold if the population is not within the value range, ending the iteration if the quantity of iterations reaches the iteration quantity threshold or performing crossover and mutation operations if the quantity of iterations does not reach the iteration quantity threshold, and dynamically selecting a gene retention strategy based on an iteration depth and a fitness value to retain a gene; updating a gene population representing a grasping position and performing determining cyclically; and obtaining an optimal target corresponding to dual arms after the iteration.

Abstract: A shock absorbing screw includes a locking member, a friction member sleeved on the locking member, and a connecting frame sleeved on the friction member. The shock absorbing screw is connected to a hard disk by a connecting portion of the shock absorbing screw. An abutting portion of the shock absorbing screw is connected to the friction member. The connecting portion is passed through a second through hole defined in the friction member. A first end of the connecting frame includes a first clamping portion, a second end of the connecting frame includes a second clamping portion, and a second groove is defined between the first clamping portion and the second clamping portion. The shock absorbing screw is connected to a hard disk frame in the second groove. The friction member is connected to the connecting frame through a first through hole defined in the connecting frame.

Abstract: A chassis includes a frame and a fixing bracket for fixing an expansion card to the frame. The frame defines at least one card hole and includes a side hook. The fixing bracket includes a bracket body, at least one rotating hook fixed to the bracket body and a movable hook fixed to the bracket body. The rotating hook and the movable hook are not in the same plane. When the at least rotating hook is inserted into the at least one card hole and the bracket body is rotated in a first direction to a predetermined position, the rotating hook is locked in the card hole, and the movable hook is hooked on the side hook to make the bracket body fix an expansion card to the frame.

Abstract: A shock absorbing screw includes a locking member, a friction member sleeved on the locking member, and a connecting frame sleeved on the friction member. The shock absorbing screw is connected to a hard disk by a connecting portion of the shock absorbing screw. An abutting portion of the shock absorbing screw is connected to the friction member. The connecting portion is passed through a second through hole defined in the friction member. A first end of the connecting frame includes a first clamping portion, a second end of the connecting frame includes a second clamping portion, and a second groove is defined between the first clamping portion and the second clamping portion. The shock absorbing screw is connected to a hard disk frame in the second groove. The friction member is connected to the connecting frame through a first through hole defined in the connecting frame.

Abstract: A hand-mountable mounting apparatus for hard disk drives (HDD) and storage devices using HDD includes a tray defining an installation space for the hard disk drive and a locking unit. The tray includes a hook. A bracket of the locking unit includes defines a first locking slot corresponding to the hook and a sliding plate defining a second locking slot corresponding to the hook and the first locking slot. The sliding plate is slidable between an unlock position, where the hook is free to withdraw, and a lock position, where the first locking slot and the second locking slot are not aligned and the hook is latched by the sliding plate.

Abstract: A small-volume push-push apparatus for mounting and demounting a hard disk includes a pressing member, a bracket, and an elastic rod. The bracket defines first to fourth sliding slots, and the elastic rod includes a sliding portion. The pressing member can drive the sliding portion to slide along the first to fourth sliding slots in sequence. When the sliding portion slides to an ending point of the first sliding slot and intersects with the second sliding slot, the bracket can move at a first direction. When the sliding portion slides to a starting point of the first sliding slot away from the fourth sliding slot, the bracket can move in a second direction opposite to the first direction.

Abstract: An electronic device enclosure includes a chassis, a bracket, a shaft and a supporting member. The bracket is rotatably connected to the chassis through the shaft. The supporting member is sheathed with the shaft. Two opposite ends of the supporting member are respectively fixed to the chassis and the bracket. When the bracket rotates in a first direction relative to the chassis, the supporting member is elastically deformable to support the bracket preventing the bracket from rotating towards a second direction relative to the chassis. And the first direction is opposite to the second direction.

Abstract: The disclosure relates to a method, apparatus and server for identity authentication, related to communication technique to solve system overload problem caused by invalid access ID attack. The method may include: a server receiving an API calling request from third party developer, the API calling request carrying access ID generated in advance by server and assigned to the third party developer; searching for a version character carried in the access ID; based on a version character generation rule, verifying whether the version number marked by the version character being the same as a version number of the check character generation rule used by the server; when the version character being verified successfully, searching for at least a check character carried in the access ID; and based on the check character generation rule, verifying respectively on the at least a check character. The disclosure is applied to API calling request process.

Abstract: A chassis includes a shell, two sliding rails, a slider and a bracket. The two sliding rails are fixed to the shell. The slider is slidably fixed to one of the two sliding rails. The slider includes a positioning post. The bracket defines a groove. The positioning post is located in the groove and moves from a first position to a second position along the groove. When the positioning post is located at the first position, the bracket is locked with the shell. When the positioning post is located at the second position, the bracket is unlocked from the shell and can move away relative to the shell.

Abstract: The disclosure relates to a method, apparatus and server for identity authentication, related to communication technique to solve system overload problem caused by invalid access ID attack. The method may include: a server receiving an API calling request from third party developer, the API calling request carrying access ID generated in advance by server and assigned to the third party developer; searching for a version character carried in the access ID; based on a version character generation rule, verifying whether the version number marked by the version character being the same as a version number of the check character generation rule used by the server; when the version character being verified successfully, searching for at least a check character carried in the access ID; and based on the check character generation rule, verifying respectively on the at least a check character. The disclosure is applied to API calling request process.

Abstract: An electronic device includes a main body, an installing assembly, a support, and a connecting assembly. The main body includes a shell and a display screen installed in the shell. The installing assembly is connected to a side of the shell opposite to the display screen. The connecting assembly is rotatably connected between the installing assembly and the support. The support includes a connecting pole and two opposite extending poles perpendicularly extending out from two opposite ends of the connecting pole. The connecting pole and the extending poles cooperatively bound a receiving space. The connecting assembly can be rotated to be received in the receiving space.

Abstract: A fixing apparatus for fixing a hard disk drive includes a bracket receiving the hard disk drive with a locating pin extending from each of opposite sidewalls, and a rotating member. The bracket includes two opposite supporting walls and an end wall. Each supporting wall defines a latching slot. The locating pins are slidably inserted into the corresponding latching slots. The rotating member includes a fixing pole slidably abutting against the hard disk drive toward the end wall, two rotating poles respectively extending from two opposite ends of the fixing pole and rotatably connected to the corresponding supporting walls, and a latching pole extending from a distal end of one of the rotating poles to be detachably latched to one of the supporting walls.

Abstract: What is disclosed is a novel system and method for text vectorization for bitmap images with reduced artificial discontinuities. Dominant points are identified in a bitmap character image. An initial curve is fitted to edge points of the character image in a vicinity of a selected dominant point. A set of boundary parameters in a vicinity of the selected dominant point are estimated based upon the initial curve. The selected dominant point is then classified as one of a sharp dominant point and a smooth dominant point based upon the boundary parameters or alternatively upon predefined classifications produced by an optical character recognition process. Curves are fitted between the selected dominant point and adjacent dominant points. The fitted curves maintain the estimated boundary parameters in the vicinity of smooth dominant points. A vectorized representation of the text character image based upon the fitted curves is produced as output.

Abstract: A fixing apparatus for fixing a hard disk drive includes a bracket receiving the hard disk drive with a locating pin extending from each of opposite sidewalls, and a rotating member. The bracket includes two opposite supporting walls and an end wall. Each supporting wall defines a latching slot. The locating pins are slidably inserted into the corresponding latching slots. The rotating member includes a fixing pole slidably abutting against the hard disk drive toward the end wall, two rotating poles respectively extending from two opposite ends of the fixing pole and rotatably connected to the corresponding supporting walls, and a latching pole extending from a distal end of one of the rotating poles to be detachably latched to one of the supporting walls.

Abstract: A connection mechanism to connect a first housing and a second housing together is provided. The connection mechanism includes a base, a button, and at least one rotatable member. The base includes at least one first hook and is slidably connected to the first housing. The base is capable of sliding between a first position where the first hook engages the second housing, and a second position where the first hook disengages from the second housing. The button is slidably connected to the first housing. The rotatable member is rotatably connected to the first housing, where one end of the rotatable member resists against the button, an opposite end of the rotatable member resists against the base, and the rotatable member is capable of being rotated about a shaft between the one end and the opposite end.

Abstract: What is disclosed is a novel system and method for text vectorization for bitmap images with reduced artificial discontinuities. Dominant points are identified in a bitmap character image. An initial curve is fitted to edge points of the character image in a vicinity of a selected dominant point. A set of boundary parameters in a vicinity of the selected dominant point are estimated based upon the initial curve. The selected dominant point is then classified as one of a sharp dominant point and a smooth dominant point based upon the boundary parameters or alternatively upon predefined classifications produced by an optical character recognition process. Curves are fitted between the selected dominant point and adjacent dominant points. The fitted curves maintain the estimated boundary parameters in the vicinity of smooth dominant points. A vectorized representation of the text character image based upon the fitted curves is produced as output.

Abstract: A cable clamping apparatus for clamping cables, the cable clamping apparatus includes a base, a sliding member forming a plurality of dentations, and a blocking board forming a plurality of dentations corresponding to spares between the dentations of the sliding member; wherein the blocking board is mounted on the base, the sliding member slides on the base to press against the blocking board, and the dentations of the sliding member cooperate with the dentations of the blocking board to clamp the cables.

Abstract: A cable clamping apparatus for clamping cables, the cable clamping apparatus includes a base, a sliding member forming a plurality of dentations, and a blocking board forming a plurality of dentations corresponding to spaces between the dentations of the sliding member; wherein the blocking board is mounted on the base, the sliding member slides on the base to press against the blocking board, and the dentations of the sliding member cooperating with the dentations of the blocking board to clamp the cable.