Abstract: A data communication system able to provide a speedy response to a user equipment transmitting data includes a base station and a data center. The base station is disposed adjacent to the data center, the base station is coupled between the data center and the user equipment, and the base station transmits data provided by the user equipment to the data center. The data center processes first data from the user equipment, and transmits a second data to the user equipment through the base station. Therefore, the data transmission time between the data center and the user equipment is shortened, and the data can be quickly fed back to the user equipment.

Abstract: A heat dissipation apparatus for a plurality of heat-generating electrical devices dissipates heat of the heat-generating electrical devices by using heat-absorbing liquid. The apparatus includes a container. The container contains coolant liquid and the plurality of heat-generating electrical devices, the container includes a bottom plate, two first side plates, and two second side plates; the first side plate is fixedly connected to the bottom plate by plastic welding, the second side plate is fixedly connected to the bottom plate by plastic welding, and the first side plate is fixedly connected to the second side plate by plastic welding.

Abstract: A method for injecting specific errors of both correctable and non-correctable types into a PCIE device for testing purposes during fabrication stage constructs an error injecting platform based on received target information. The platform includes a control system and at least one testing system. Disabling a security boot in the connected testing system and obtaining information of the specified driver. The obtained information comprises objects to be tested according to selection, each object having a bus address and a PCIE port value. The object under test is controlled to inject a specified error, the injection and result of injection being reported by the processor and analyzed.

Abstract: A hard disk drive tray includes a tray body, a handle, and two elastic locking members. The tray body includes a bottom wall and two side walls. A first evading groove is defined in each side wall. The side wall includes a first clamping portion. The handle includes two handle operating portions and a beam portion. The handle operating portion is connected to the side wall. A second clamping portion is formed in the first limiting groove. Each elastic locking member includes a first side portion, a top portion, and a locking portion. A third clamping portion is formed on the first side portion. The locking portion is blocked by the second clamping portion, and the third clamping portion is blocked by the first clamping portion. When the elastic locking member is pushed toward the second clamping portion, the third clamping portion is separated from the first clamping portion.

Abstract: A method for retrieving an object which becomes lost receives an image of an object from a camera device and analyzes the image to obtain features of the object. The features information comprises category of the object and other details such as serial number. Supplementary information of the object is input on a displayer, the supplemental information comprises time and location of a lost property office or other responsible authority in receiving an object apparently lost. Information according to the features of the object and the supplementary information is broadcast. A device facilitating the retrieval of such object is also disclosed.

Abstract: A method for analyzing validity of responses to a questionnaire by students identifies each student in classroom images, and analyzes the defined classroom behaviors of each student over a period of time. The classroom behaviors can include learning behaviors and non-learning behaviors. The method determines whether the non-learning behaviors of each student meet (ie. are less than) or exceed (ie. are more than) one or more preset conditions and accordingly screens the questionnaire responses as being valid or not valid. An electronic device and a storage medium for performing the above-described method are also disclosed.

Abstract: A system for detecting HDDs and in-position states of each of them includes an HDD controller, an analysis module, and a BMC chip. The HDD controller is electrically connected to the HDDs for obtaining SGPIO information and outputting testing signals comprising the SGPIO information. The analysis module receives the testing signals and generates in-position state information according to voltage levels of the testing signals. The BMC chip is electrically connected to the analysis module. The BMC chip receives the in-position state information from the analysis module and generates a detection log accordingly.

Abstract: A loop thermosiphon (LTS) heat sink includes an evaporator, a condenser, a gas conduit, and a liquid conduit. The evaporator includes a first surface, a second surface opposite to the first surface, and a third surface coupled between the first surface and the second surface. Each of the first surface and the second surface is configured to mount a heat generating component. One end of the gas conduit is coupled to one end of the liquid conduit, and another end of the gas conduit and another end of the liquid conduit are coupled to the evaporator through the third surface. The evaporator, the gas conduit, and the liquid conduit cooperatively form a circulation passage. A connecting portion of the gas conduit and the liquid conduit is received within the condenser.

Abstract: A method for setting parameters in design of a printed circuit board (PCB) includes obtaining multiple combinations of layout parameters of a PCB and inputting the multiple combinations of layout parameters into a predetermined PCB layout simulation software to obtain multiple interference parameter combinations. The multiple combinations of layout parameters and the multiple interference parameter combinations are defined as training samples, and a predetermined network model is trained through the training samples to obtain a first prediction model. The first prediction model is trained and tested to obtain an impedance prediction model. When the multiple combinations of layout parameters are inputted to the impedance prediction model, only an average predetermined error is allowed between impedance values predicted by the impedance prediction model and impedance values calculated by the predetermined PCB layout simulation software, to enable acceptance of that combination.

Abstract: A fixing bracket for holding an expansion card in a computer without screws includes first and second fixing frames and an elastic member connected to the first and second fixing frames. The two fixing frames define a receiving space for the expansion card. The first fixing frame can be moved relative to the second fixing frame, or the second fixing frame can be moved relative to the first fixing frame, by applying an external force to deform the elastic member. When the external force is released, the elastic member restores and clamps the expansion card in place until disassembly by the same process.

Abstract: A food depositing system for the benefit of customers and food shops includes a first electronic device. The first electronic device includes a processor and programs stored in a memory. The processor causes the display of an interactive depositing interface during a food depositing operation, the deposited food items being input as deposited items. Identity and certain features of a depositing customer are also obtained during the depositing operation and an association is made accordingly and stored to await the customer's takeback of food deposited.

Abstract: A movable equipment loading and unloading structure for movably mounting equipment within a container includes a loading and unloading assembly and a guide assembly. The loading and unloading assembly includes a loading and unloading rail mounted to a ceiling of the container and a loading and unloading wheel assembly movably coupled to the loading and unloading rail. The loading and unloading wheel assembly is mounted to a side of the equipment. The guide assembly includes a guide rail mounted to a floor of the container and at least one guide wheel rollably coupled to the guide rail. The guide wheel is mounted to another side of the equipment opposite to the side mounted to the loading and unloading wheel assembly.

Abstract: An inbuilt but deployable supporting apparatus for supporting a server cabinet includes an extension arm and a supporting unit. The extension arm includes two opposite ends, one end of the extension arm is movably connected to a lower side of the server rack, the supporting unit is connected to the other end of the extension arm. The extension arm is movable between a retracted position, where the extension arm saves space by being accommodated in the lower side of the server rack, and a deployed position, where the extension arm is extended out of the server rack and, being adjustable in respect of the distance or depth down to a supporting surface, takes support from the supporting surface through the supporting unit.

Abstract: A method of translating network addresses includes defining a service address including a first IP address for a server. The server actually uses a service address including a second IP address. A packet originating from a client is received, the target address of the packet being the first IP address. The destination address of the packet is changed from the first IP address to a third IP address. The destination address of the packet is then changed from the third IP address to the second IP address. The first packet is then sent to the server. The present disclosure also provides a system for implementing the method of translating network address. The security of data transmission is improved while resolving IP network segment conflicts.

Abstract: A slide rail includes a first rail, a second rail, a third rail, a first resilient member, a second resilient member, and a locking member. When the first rail is pulled out, the first resilient member drives the second resilient member to move along with the first resilient member to pull the second rail. When a receiving slot is aligned with a through slot, a spring piece and the locking member fall into the through slot, the spring piece separates from the first resilient member, the locking member latches onto a first step surface of the through slot to limit movement of the second rail, and the first rail continues to move.

Abstract: A method for managing storage resources includes calculating ratios of the quantity of data accessed to the current data occupation of storage unit of each server in a network. The method determines one or more servers each with ratio greater than a first preset value, and determines one or more servers each with ratio less than a second preset value. Next, the method outputs signals to control the servers with ratios each greater than the first preset value to transfer data to the one or more servers with ratios each less than the second preset value, until the ratios of all servers is less than or equal to the first preset value and greater than or equal to the second preset value. A related device for applying the method and a related non-transitory storage medium are also provided.

Abstract: A warning triangle structure includes a base, a triangular frame, a pulling assembly, and a fluorescent cloth. The triangular frame includes a bottom end and a top end opposite the bottom end. The bottom end is fixedly coupled to the base. The pulling assembly is located adjacent to the top end. The pulling assembly includes a spring and a drawstring that is resiliently coupled to the spring and that is stretchable relative to the spring. The fluorescent cloth includes a fixed end fixed to the triangular frame and a movable end coupled to the drawstring. The movable end is configured to be closed or opened relative to the triangular frame.

Abstract: A system for cooling an electronic device includes a pressure tank in a sealed cavity, the cavity being filled with an insulating liquid. The electronic device is also housed in the cavity and is immersed in the insulating liquid. The pressure tank is immersed in water. The liquid when heated becomes less dense and flows to exchange and lose heat to the cold water via the pressure tank. After cooling by the pressure tank, the now-denser liquid flows back to the other side of the electronic device because of density differences.

Abstract: A system and method for protecting firmware of baseboard management controller (BMC) includes a serial peripheral interface read only memory device (SPI ROM) and a logic controlling unit. The SPI ROM includes first and second blocks, the first block stores a main program, and the second block stores backup program. The logic controlling unit includes a protecting module, a determining module, and a controlling module. The protecting module write-protects the main program and the backup program of the SPI ROM. The determining module determines whether the main program of the first block is altered or damaged when the main program is obtained by the BMC. If so, the controlling module invokes the backup program from the second block, and writes the backup program to the first block. A firmware protecting method is also provided.

Abstract: A data management system deploys a number of server cabinets each deploying a number of servers. Each server is coupled to a data center network. The data management system includes a processor and a storage unit coupled to the processor. The processor is configured to pre-obtain a MAC address and location information pair of every server, save the information pair as a computer-readable document, obtain a MAC address of a server to be queried, and compare the MAC address of the server to be queried to the computer-readable document and obtain the physical address of the server to be queried. The information pair includes information of the MAC address and a corresponding physical location.