Abstract: The present invention relates a method of preparing agarose beads, which method results in a population of beads which are of relatively uniform particle size. In an advantageous embodiment, the beads are of a particle size less than 10 ?m, and the coefficient of variation C.V. of the population is less than 15%. The beads according to the invention are advantageously used in biological separation methods, such as in the production of chromatographic packing materials; drug carriers; or in any method of biological engineering.

Abstract: A method and an apparatus of processing Session Initiation Protocol (SIP) messages based on multiple cores. The method comprises: pre-parsing a received SIP message to obtain an identifier of the SIP message; dispatching SIP messages with the same identifier to the same core; and processing, on each core, SIP messages dispatched to the core by using related dedicated resources. The present invention relieves the resource contention and thus improves the utilization efficiency of computing resources of cores.

Abstract: A method, system, and article of manufacture tangibly embodying computer readable instructions for performing defragment on a physical hard disk of a host machine system having a virtual machine (VM) system. The host machine system performs contiguous storage of each file on the VM and the host machine with only one defragment. The host machine obtains a physical position distribution of data blocks in the hard disk constituting a VM file in the VM system according to VM file allocation information of the VM system and the host machine system file allocation information.

Abstract: A heat sink includes a plurality of fins parallel to each other. The fins include a top portion having a flange. The opposite ends of each flange are rounded. Two rounded corners are located below the plane defined by the flange.

Abstract: A heat sink includes a plurality of fins parallel to each other. The fins include a top portion having a flange. The opposite ends of each flange are rounded. Two rounded corners are located below the plane defined by the flange.

Abstract: An exemplary support stand for a flat-panel display monitor, includes a base member, an elevating mechanism, and a rotatable mechanism. The elevating mechanism includes a support member and an elevating member. The support member is fixed on the base member. The elevating member is slidably connected to the support member. The rotatable mechanism includes a rotatable body. The rotatable body is rotatably positioned on the elevating member.

Abstract: A protective cap for use with a heat sink, includes a cover plate for enclosing thermal grease on the heat sink, and a plurality of strengthening ribs positioned on the cover plate. The strengthening ribs resist the heat sink to prevent the thermal grease from being pressed against the cover plate.

Abstract: An exemplary telecommunication device includes a touchscreen, a processing unit, a storage unit, a combining unit, and a communication unit. The touchscreen is used for receiving and recording handwriting inputs. The processing unit is adapted for converting each handwriting input into a separate first image having a first predetermined size. The storage unit is used for storing the separate first images generated by the processing unit. The combining unit is configured for combining the separate first images to generate a resulting second image having a second predetermined size. The communication unit is used for sending the resulting second image wirelessly.

Abstract: An electronic device capable of controlling light-emitting diode (LED) bright is provided. The electronic device includes a signal producing unit for producing an operation signal; a Micro Control Unit (MCU) configured for outputting a normal brightness control signal according to the operation signal, and outputting a ultra brightness control signal according to the operation signal when an actual idle time of the electronic device reaches or exceeds a predetermined idle time; a pulse current control unit for controlling an output current according to the normal brightness control and the ultra brightness control signal; and a LED illuminator array for emitting light based on the output current. The MCU terminates the output of the ultra brightness control signal when an actual time of outputting the ultra brightness control signals reaches a predetermined time, and then the LED illuminator array resumes its normally bright. A control method is also provided.

Abstract: A method and device for QoS control for presence servers and a presence system supporting QoS control. The method for providing QoS capability for a presence server includes the steps of: receiving SIP (Session Initiation Protocol) messages; classifying said SIP messages based on a QoS policy; and delivering the classified SIP messages after a predetermined time corresponding to the QoS policy.

Abstract: An exemplary support stand (102) for a flat-panel display body includes an elevating support (30), a monitor bracket (50), and a support member (20). The elevating support includes a first chassis (321), a second chassis (322), a plurality of supporting blocks (3231) for connecting end portions of the first chassis and the second chassis, an elastic member (391), a first pivot subassembly (305), and a second pivot subassembly (306). The monitor bracket is rotatably connected to the first pivot subassembly. The support member is rotatably connected to the second pivot subassembly. The elastic member is capable of exerting a rebound force on two of the first chassis, the second chassis, and the supporting blocks. The first and second pivot subassemblies are fixed to the supporting blocks. The monitor bracket and the support member are rotatably connected to the first and second pivot subassembly correspondingly.

Abstract: A support stand for a flat-panel display monitor comprises a base member, a support mechanism, two link shafts, and an adjustable mechanism. The support mechanism comprises a support bracket and a resilient member positioned in the support bracket. The adjustable mechanism is configured for holding the flat-panel display monitor. A first end of the support bracket and first end of each shaft are rotatably connected to the base member. An second end of the support bracket and a second end of each link shaft are rotatably connected to the adjustable mechanism. The resilient member is configured to create an elastic force between the support mechanism and the link shafts so that a distance between the support mechanism and the link shafts tends to decrease.

Abstract: An exemplary swivel hinge assembly (10) includes a bracket (12), a hinge mechanism (14), a hinge follower mechanism (16), and a swivel mechanism (18). The hinge mechanism (14) and the hinge follower mechanism (16) are configured to provide the swivel hinge assembly (10) with rotation about a first rotational axis. The hinge mechanism (14) includes a first pivot shaft (154), a first connecting member (142), a positioning ring (146), a ring follower (144), an elastic member (148), a cam (150), and a cam follower (152). The hinge follower mechanism (16) includes a second connecting member (162) and a second pivot shaft (166). The swivel mechanism (18) is connected to the bracket (12) and configured to provide the swivel hinge assembly (10) with rotation about a second rotational axis.

Abstract: To reduce traffic between multiple servers in a presence system and improve the performance of the presence system, a method and device is provided for user-management in a presence system, and a presence system. The presence system comprises multiple presence servers communicating through a network, and said device for user-management comprises a combining means for combining multiple user sets among which there are the greatest correlations into a user set to be allocated; and an allocating means for allocating said user set to be allocated to one presence server which can contain said user set to be allocated. Through allocating multiple user sets among which there are the greatest correlations to a same presence server, communications among users in the user set are performed within a same presence server, reducing occupations for network resources and improving performance of the presence system.

Abstract: A light-emitting diode (LED) string is provided. The LED string includes a power plug configured for connecting with a power source to power the LED string; one or more LED sockets configured for electrically connecting with the power plug; one or more LEDs configured for being installed on and electrically connecting with the LED sockets; and a control module configured for being electrically connected with anyone of the LED sockets. The control module includes a control circuit, an input terminal and an output terminal, the control circuit electrically connects with one of the LED sockets via the input terminal and the output terminal and controls a current flowing through the LED string to change from a first value to a second value, thereby controlling the LED string to light.

Abstract: The invention provides an information polling method, apparatus and system thereof, wherein a message gateway receives an information polling request from an application in an application client, and according to the received information polling request, the message gateway acquires at least one message requested by the application and calculates a reference polling cycle of the application, and sends the acquired message requested by the application and the reference polling cycle to the application. The application determines a polling cycle of a next poll according to a load condition of the application client and the received reference polling cycle. According to the invention, efficiency and quality of the information polling is improved, while the system is ensured to run normally, reducing the cases of message blocking and system breakdown which may occur in the existing situations.

Abstract: The present invention provides a system and a computer-implemented method for modifying an entry name in a directory database. The method comprises the steps of: modifying, in response to a request for modifying operation of entry names, entry mapping information in accordance with the modification that is requested for modifying operation of entry names, wherein each piece of entry mapping information is used for indicating the correspondence relation between pre-modification entry name information and post-modification entry name information; asynchronously performing modifying operation of a corresponding entry name in accordance with respective pieces of entry mapping information when a predetermined condition for updating the directory database is met.

Abstract: An exemplary metal structure (10, 30) includes a base portion (14, 34), a flange (122, 322), and an edge portion (1241, 3241). The base portion defines a circular flanged hole (12, 32). The flange extends from a top surface of the base portion and the flange surrounds the circular flanged hole. The edge portion is configured for connecting an inside surface of the flange and the top surface of the base portion. The edge portion includes an edge surface, and a ratio of a radius of the edge surface (1242, 3242) of the edge portion with respect to a thickness of the base portion is less than 0.4. A method for making a circular flanged hole in a metal sheet (15) is also provided.

Abstract: An optical recording/reproducing apparatus includes a frame defining a space therein to receive operational components of said apparatus, a tray movably received in said space for accepting an optical disc therein; an upper cover attached to said frame beside said space so as to have said accepted optical disc sandwiched between said cover and said tray in said space; a front panel attached to said frame beside said cover and said space, and having an opening formed in a moving path of said tray to have said tray movable through said opening; and a blocking strip firmly attached to said frame and separate from said cover and said panel, a lower edge of said blocking strip is nearly close with a top surface of the tray, said blocking strip extending beside said moving path of said tray along a direction essentially perpendicular to said moving path.

Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethybutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converted 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.