Abstract: A wide-angle optical lens assembly comprises, in order from an object side to an image side: a first lens element with a negative refractive power having concave image-side surface, a second lens element with a positive refractive power, a third lens element with a positive refractive power, and a fourth lens element with a positive refractive power having convex image-side surface, at least one surface of the fourth lens element thereof being aspheric. By such arrangement, total track length and photosensitivity of the wide-angle optical lens assembly can be effectively reduced while retaining large field of view and superb image quality.

Abstract: An exercise machine includes a frame, a saddle, at least one crank arm, at least one pedal, a force measurement, an angle detector, a processor, and an adjustment mechanism. The saddle is connected to the frame. The crank arm is pivotally connected to the frame, and the pedal is pivotally connected to the crank arm. The force measurement measures a force applied to the crank arm, and the angle detector detects a crank arm angle. The processor is programmed to calculating a work value according to the force and the crank arm angle. The feedback mechanism returns the work value to a user.

Abstract: A method for measuring the thickness of a first absorbing material in the presence of a second absorbing material is provided. The method comprises the steps as follow. The thickness (tS) of the first absorbing material is fixed and the thickness of the second absorbing material is varied to obtain a calibration standard. The intensity of the transmissive energy passing through the calibration standard is detected by acquiring multiple pairs of image data comprising a foreground value (logn(Ic+s)) and a background value (logn(Ic)). The thickness (tSi) of the first absorbing material is changed and the above steps are repeated to obtain sets of image data. A fitting constant Id is determined to describe each set of the intensity data as ? s ? ? t S = log n ? ( I c + I d ) - log n ? ( I c + s + I d ) .

Abstract: A power supply module includes an inductor circuit, a switch circuit, a sensor circuit, and a controller. The inductor circuit includes an inductor and a voltage feedback wire returning the terminal voltage of the inductor. The switch circuit is electrically connected to the inductor circuit for driving the inductor circuit. The sensor circuit is electrically connected to the switch circuit and the voltage feedback wire, in which the sensor circuit controls the switch circuit and generates a current feedback signal according to the terminal voltage of the inductor. The controller is electrically connected to the sensor circuit, in which the controller controls the sensor circuit according to the current feedback signal.

Abstract: A method for detecting a node of a server device includes the following steps. When a node performing a boot procedure at a server slot is detected, a serial number of the node and a slot ID of the server slot are obtained. Then, a step is performed to determine whether the serial number exists in a first data row of a comparison list, and whether the first data row is corresponding to the slot ID. When the first data row is not corresponding to the slot ID, a data address recorded in the first data row is moved to a second data row corresponding to the slot ID. When not existing in the first data row, the serial number is used to update a third data row corresponding to the slot ID, and the data pointed by a data address recorded in the third data row are deleted.

Abstract: A dual-mode mobile communication device capable of sharing Bluetooth module to perform communication is disclosed. The dual-mode mobile communication device includes a first communication module, a second communication module and a Bluetooth module. The Bluetooth module of the dual-mode mobile communication device is electrically connected with a Bluetooth device. The first communication module is electrically connected with the second communication module and the Bluetooth module respectively.

Abstract: A motherboard error detection system includes a pluggable error detection board and a motherboard having a boot management chip. When the motherboard enters a device-driven status from a standby status, the boot management chip is used to manage power-on timings of different voltage sources; to collect a plurality of sets of status information; and to check whether the sets of status information and the power-on timings have errors. The pluggable error detection board includes an interpreting unit, a message-reading interface and a connector which is pluggably disposed on the motherboard. When the boot management chip notifies the pluggable error detection board to read an error message, the interpreting unit converts the error message to human-readable information, and the human-readable information is outputted through the message-reading interface.

Abstract: A pin definition layout of electronic paper display screen is provided. The electronic paper has a first pin area, a data signal source driver area, and a second pin area sequentially disposed at any side thereof. The first pin area and the second pin area each have a first power supply pin set and a second power supply pin set disposed thereon, and a plurality of No connections is disposed by intervals in the first power supply pin set and the second power supply pin set, so as to separate potential pins. Therefore, no interference is generated between the pins, thus achieving good electrical properties and reducing the wire complexity.

Abstract: A memory card socket is disclosed. The memory card socket has a body for receiving a memory card, many pins to electrically connect to the memory card, two elastic members for holding the memory card, and a blocking member for restraining one of the two elastic members. In accordance with the format of the memory card, the blocking member can restrain or release the elastic member for holding the memory card.

Abstract: A bayonet type electronic connector (1) comprises metal contacts arranged on the upper and lower surfaces of the connector (1). Metal contacts all are U-shaped bayonets (2). The U-shaped bayonet's terminal forms a right angle. The adjacent U-shaped bayonets (2) on each surface are staggered fore and aft in two rows. Enough functional space is arranged between the two rows.

Abstract: A method for configuring a RAID (Redundant Array of Inexpensive Disks) includes the following steps. When a RAID instruction to access the RAID array is received, it is determined whether a removed hard drive unconnected to the RAID array is present in a hard drive list of the RAID array; when the removed hard drive unconnected to the RAID array is present in the hard drive list, the hard drive list of the RAID array is amended; it is detected whether a new hard drive connected to the RAID array is absent in the hard drive list; when the new hard drive connected to the RAID array is absent in the hard drive list, the hard drive list is amended; and the RAID instruction is executed to access the RAID array according to the hard drive list.

Abstract: A detachable element positioning structure disposed at a side of a slot for positioning a detachable element in the slot is disclosed. The detachable element positioning structure includes a first elastic arm and a second elastic arm connected to the slot. The first elastic arm touches a top surface of the detachable element. The second elastic arm connects to the slot and has a protrusion. The detachable element has a side notch, and the protrusion is coupled to the side notch.

Abstract: A power plane includes a first circuit region and a second circuit region. The length of the first circuit region or second circuit region is related to the noise frequency to be filtered out. The width of the first circuit region can be wider or narrower than the width of the second circuit region. While manufacturing the power plane, a predetermined length is decided according to the resonance frequency of an original power plane, then the proposed power plane is formed with the first circuit region and the second circuit region of a predetermined length, and making the width of the first circuit region wider or narrower than the width of the second circuit region, such that the noises with the resonance frequency can be mitigated.

Abstract: A golf club head includes a striking face having a plurality of grooves formed therein. At least one groove includes a first curved side surface, a second curved side surface opposite to the first curved side surface, and a bottom surface connecting the first and the second curved side surfaces. As viewed in the longitudinal direction of the at least one groove, the first and the second curved surfaces respectively have first and second involute profiles. A distance measured between the first and the second curved surfaces continuously increases from the bottom surface to the striking face.

Abstract: A high-temperature catalytic material and a method for producing the same are disclosed. The high-temperature catalytic material is obtained by subjecting a mixture of gibbsite and boehmite in a desired weight ratio to a single dry thermal treatment in the air, without alkaline or hydrothermal treatment, so as to obtain multiphase alumina powder as the high-temperature catalytic material. The multiphase alumina powder applied in the high-temperature catalytic material can raise the temperature of phase transformation, maintain its high specific surface area when suffering high temperatures for a long time, prolongs its lifetime, and reduces the usage of noble metals, resulting in great reduction of cost.

Abstract: A cruising aerator includes a raft, a motor mounted on the raft, a shaft driven by the motor, a first impeller mounted on the shaft, a second impeller mounted on the shaft, and a common chamber. The cruising aerator further includes a sequential controller connected to the motor for controlling the motor to rotate clockwise or counterclockwise. The motor, the shaft and impellers are installed inside of the common chamber. The common chamber has a common inlet disposed under a water surface. A first outlet and a second outlet of the common chamber are arranged to face in opposite directions. The first impeller and second impeller are assembled to have opposite normal rotating directions to each other according to a rotating direction of the motor.

Abstract: A server device with a storage array module is provided. The server device includes a chassis, a motherboard module, and a storage array module. The motherboard module and the storage array module are disposed in the chassis. The storage array module includes a first tray removably disposed in the chassis, a hard disk back panel fixed to a bottom of the first tray, and several hard disks hot-pluggably disposed in the first tray. The hard disk back panel is electrically connected to the motherboard module, and the hard disks are electrically connected to the hard disk back panel and driven to move into/out the chassis with the first tray.