摘要:
A printing device includes a user interface, a print module and a locked print module. The locked print module is configured to examine a plurality of print data received by the printing device to determine whether locked printing is specified for any electronic documents contained in the plurality of print data. If locked printing is specified for any of the electronic documents contained in the plurality of print data, then the corresponding print data is stored on the printing device and not processed for printing. The locked print module is further configured to verify password data with respect to user identification data. If the password data is not successfully verified with respect to the user identification data, then the locked print module causes print data that is both stored on the printing device and associated with the user identification data to be deleted from the printing device.
摘要:
The invention provides for verifying correctness of a database system. A SQL instruction is received and access paths of the received SQL instruction are extended. The SQL instruction is executed by using the extended access paths, and the correctness of the database system is verified according to results of executing the SQL instruction. With the method and system of the invention, the object of verifying correctness of a database system by automatically extending access paths of SQL statement may be achieved, and the object of verifying correctness of a database system scientifically, effectively and purposefully based on ratio of error or defect present in database itself due to various data manipulation approaches (different values of access path elements) may also be achieved.
摘要:
A load card for testing different types of PCI slots is provided. The load card includes several gold fingers, and resistor selection circuits. Each gold finger corresponds to one PCI slot. Each resistor selection circuit includes a resistor to test at least one PCI slot working in one working voltage. When a PCI slot working at a working voltage is to be tested, the gold finger connects to the PCI slot, and the resistor selection circuit including the resistor to test the PCI slot working at the working voltage is enabled and others are disabled in response to an operation of the user.
摘要:
An air duct includes a top plate, two side plates extending from two lateral sides of the top plate, a baffle plate extending from the top plate and located between the side plates, and a torsion spring connected between the top plate and the baffle plate. The top plate and the side plates cooperatively define an air passage in the air duct. The baffle plate includes a first end pivotally connected with the top plate and an opposite second end. The second end of the baffle plate is rotatable relative to the top plate. The torsion spring includes two arms abutting against the top plate and the baffle plate, respectively. When the baffle plate is rotated relative to the top plate under an external force, the torsion spring resists such force.
摘要:
Techniques are provided for processing a job, such as a print job or a facsimile (fax) job. A printing device comprises multiple modules that are developed in different programming languages. An inter-process communication channel is established between (a) a first module that is developed in a platform-independent programming language and (b) a second module that is developed in a platform-dependent programming language. The first module receives user input that identifies a particular print job. In response to the user input, the first module sends, via the inter-process communication channel, one or more instructions to the second module, which retrieves the print job, decrypts the print job, and causes the print job to be executed.
摘要:
A heat sink includes a base and a number of fins perpendicularly extending from the base. The base includes a main body. The fins include a number of parallel first fins and two second fins sandwiching the first fins. Each second fin includes a main piece extending from the main body and a guiding piece extending from one end of the main piece.
摘要:
A container data center includes a portable container, a number of server cabinets accommodated in the container, a shutter set on a side wall of the container, a temperature sensor to sense a temperature of air outside the container, a humidity sensor to sense a humidity of air outside the container, and a controlling device to receive the sensed temperature and the sensed humidity. The controlling device compares the sensed temperature with a preset temperature and compares the sensed humidity with a preset humidity range. When the sensed temperature is less than the preset temperature and the sensed humidity is in the preset humidity range, the controlling device opens the shutter. When the sensed temperature is higher than the preset temperature or the sensed humidity is outside of the preset humidity range, the controlling device closes the shutter.
摘要:
A heat dissipation device is for dissipating heat generated from an electronic device, and includes a fan duct and a heat sink. The fan duct includes a top plate having a receiving hole penetrating therethrough. The heat sink is configured to dissipate heat from a heat-generating electronic component of the electronic device, and includes a base configured to be mounted on the heat-generating electronic component and a number of heat dissipating sheets positioned on the base. The heat dissipating sheets are long enough to extend towards the fan duct and into the receiving hole when the heat dissipation device is installed in the electronic device.
摘要:
An exemplary server system includes a server cabinet, multiple racks arranged in the server cabinet, multiple servers mounted on the racks, and a heat dissipation device for cooling the servers. The heat dissipation device includes a fan module and a dissipating module. The fan module is arranged over the racks for generating downwards airflow across the servers to exchange heat with the servers. The dissipating module is arranged over the racks to exchange heat with the airflow after the airflow passes the servers.
摘要:
A network device and method are directed towards detecting and blocking image spam within a message by performing statistical analysis on differences in edge pixel distribution patterns. An image spam detection component receives a message with an image attachment. Physical characteristics of the image are examined to determine whether the image is a candidate for further analysis. If so, then the image may be converted to a grayscale image, and then performing edge detection, followed by the elimination of non-maxima and thresholding of weak edges. Edge pixels and then employed to determine a normalized pixel density distribution (PDD). Various statistical analyses are applied to the resulting normalized PDD to determine a likelihood that the image is spam. A signature based exemption may be applied to images improperly identified as spam, based on trusted user feedback.