Abstract: The disclosure relates to an unmanned aerial vehicle, a motor control device and method for controlling the same. The motor control method includes: acquiring current attitude information of a load, target attitude information of the load and current operation parameter information of one or more motors on the load, and obtaining control information for controlling the one or more motors in accordance with the acquired information above; transmitting the control information to a shared memory for storage; reading the control information from the shared memory, and controlling operation of the one or more motors in accordance with the control information. In one embodiment, the motor control device does not require cable or PCB wiring to connect a main control unit and an execution unit, reducing the size of hardware. Moreover, with the shared memory, the speed and stability of data interaction between the main control unit and the execution unit may be improved.

Abstract: A method of fabricating three-dimensional (3D) structures comprises forming a patterned area in a handle wafer, and bonding a mold wafer over the patterned area to produce one or more sealed cavities having a first pressure in the handle wafer. The mold wafer is heated past its softening point at a second pressure different from the first pressure to create a differential pressure across the mold wafer over the sealed cavities. The mold wafer is then cooled to harden the mold wafer into one or more 3D shapes over the sealed cavities. One or more materials are deposited on an outer surface of the mold wafer over the 3D shapes to form a structure layer having 3D structures that conform to the hardened 3D shapes of the mold wafer. The 3D structures are then bonded to a device wafer, and the handle wafer is removed to expose the 3D structures.

Abstract: A battery has a cathode, an anode and an electrolyte, with the cathode having a cathode current collector and a cathode material. The cathode material has a cathode active material, which is capable of reversibly intercalating and deintercalating first metal ions. The electrolyte has a solvent capable of dissolving the first metal ions and second metal ions that can be reduced to a metal during a charge cycle and be oxidized from the metal to the dissolved second metal ions during a discharge cycle. The cathode current collector has an electrochemically inert carrier and graphite. The carrier is wrapped by the graphite. The cathode current collector provided has good corrosion resistance and the battery has a long floating charge life and a low cost.

Abstract: An air data system comprises an optical air data system comprising one or more LiDAR channels that each include at least one line-of-sight for air data interrogation, wherein the LiDAR channels are configured to output a set of air data signals. An optional non-optical air data system comprises one or more non-optical air data sensors selected from one or more pitot sensors, one or more static pressure sensors, one or more temperature sensors, one or more angle of attack vanes, one or more angle of sideslip vanes, one or more multi-function probes, or combinations thereof. The non-optical air data sensors are configured to output a set of air data signals. One or more processors are coupled to the LiDAR channels and the non-optical air data sensors when present. The processors are configured to use the air data signals to conduct signal analysis, data processing, data augmentation, voting, or combinations thereof.

Abstract: A method of enhancing LiDAR data is provided. The method includes inputting LiDAR data from at least one LiDAR sensor; inputting data from at least one of: at least one static pressure sensor; and at least one total air temperature sensor; and extracting accurate air data parameters by processing one of: the LiDAR data and static pressure data from the static pressure sensor; the LiDAR data and true temperature data from the total air temperature sensor; or the LiDAR data, the static pressure data from the static pressure sensor, and the true temperature data from the total air temperature sensor. The method also includes generating augmented air data based on the extracted accurate air data parameters and outputting the augmented air data.

Abstract: A laser including a semiconductor laser stack group, a beam compositor, a pump beam collimator, a thin-disk laser crystal, a first and a second parabolic reflectors with the same facial contour function, a corrective reflector, an output mirror, and a jet-flow impact cooling system. The thin-disk laser crystal and the output mirror form a laser resonant cavity. The first parabolic reflector, second parabolic reflector, thin-disk laser crystal, and corrective reflector form a multi-pumping focus cavity. The jet-flow impact cooling system is used for cooling the thin-disk laser crystal. The pump light produced by the semiconductor laser stack group is composited by the beam compositor, collimated by the pump light collimator, and enters the multi-pumping focus cavity. Within the multi-pumping focus cavity, the pump light is focused, collimated, and deflected to converge on the thin-disk laser crystal. The laser resonant cavity produces and outputs a laser beam.

Abstract: A heat dissipating blower includes a main body and a cover. The main body includes a shell and a fan. An outlet and a first gap are defined in the shell. A connecting portion is set at one end of the first gap away from the outlet. Two sliding grooves are formed on inner surfaces of a first wall and a second wall and a plurality of locating holes is set on the two sliding grooves. The cover includes two parallel side plates and a middle plate. A plurality of positioning pins is set on outer surfaces of the two side plates. Some of the positioning pins are located in corresponding ones of the locating holes to change an area of the outlet.

Abstract: A heat dissipation device includes a heat sink and a fan duct. The fan duct includes a cover and a baffle. The cover includes a top plate, a first sidewall and a second sidewall respectively extending from opposite sides of the top plate. The baffle is located between the first sidewall and the second sidewall of the cover and pivotally contacts the first and second sidewalls. The baffle forms an angle with the top plate and is rotatable relative to the first and second sidewalls to adjust the angle between the baffle and the top plate.

Abstract: A server structure is disclosed including a server cabinet, spaced fixing units, and server groups. Each server unit includes a first server unit and a second server unit fixed to supporting frames of the server cabinet by first fixing plates and the second fixing plates of the fixing units, respectively. The first server unit alternately abuts the second server unit, and the stacked height of each first server unit and the abutting second server unit is equivalent to the height along the supporting frame occupied by the corresponding fixing unit.

Abstract: A hard disk drive (HDD) mounting assembly includes a fixing plate and a cover thereon including a side plate perpendicular to the fixing plate and a top plate opposite to the fixing plate. The side plate includes a first through hole defined therein and a first fastener corresponding to the first through hole. A HDD of a first size is fixed in the HDD mounting assembly by the first fastener through the first through hole. The top plate includes a second through hole defined therein and a second fastener corresponding to the second through hole. A HDD of a second size is fixed in the HDD mounting assembly by the second fastener through the second through hole, and the first size is different from the second size.

Abstract: A computer enclosure includes an enclosure, a mounting board, a device mounted to the mounting board, and a latching member pivotably mounted to the mounting board. The enclosure includes a bottom plate, and a number of mounting tabs extend from the bottom plate. The mounting board is detachably mounted to the bottom plate. A number of clamping hooks extend from the mounting board, to fix the mounting tabs. The latching member includes an elastic hook. The latching member is rotated, with the elastic hook received in or withdrawing from the enclosure. When the hook engages with the enclosure, the latching member prevents the clamping hooks from disengaging from the mounting tabs.

Abstract: A mounting apparatus for mounting a system fan and an exterior fan to a chassis includes a mounting bracket and a plurality of connecting members. The mounting bracket includes a rectangular hollow frame and x-shaped spoke fixed in the rectangular hollow frame. Each of the connecting members includes a first connecting portion and a second connecting portion extending from an end of the first connecting portion. The system fan is secured to the chassis by the first connecting portion each running through the mounting bracket, the chassis, and the system fan. The exterior fan is secured to the chassis by fastening means each running through the exterior fan and one second connecting portion of the connecting members.

Abstract: A rackable server system includes a rack, a fan assembly mounted to a rear of the rack, and a number of server units slidably mounted in the rack. The fan assembly includes a frame defining a number of air passages, a number of door plates mounted to the frame and correspondingly arranged in the passages, and a number of fans fixed to a rear of the frame. The air passages are correspondingly aligned with the fans. The server units are correspondingly aligned with the air passages and resist against the door plates to pivot the door plates, thereby uncovering the air passages.

Abstract: A mounting apparatus is configured for securing a PCI card and includes a chassis, a securing member and a latch member. The chassis includes a bottom wall and a sidewall perpendicularly connected to the bottom wall. A printed circuit board is secured to the bottom wall, and the sidewall is capable of securing the PCI card. The securing member is secured to a printed circuit board and defining a holding space. The latch member is slidably received in the holding space, the latch member capable of securing the PCI card.

Abstract: A computer server system includes a server cabinet, and at least one server accommodated in the server cabinet. The server forms a fixing structure at each of four corners thereof. In addition, the server cabinet includes fixing structures which are correspondingly matched with the fixing structures of the server. The fixing structure of the server cabinet can be in the form of protrusions, mounting holes, and engagement holes. The fixing structure of the server can be in the form of ears and mounting grooves. The server is mounted in the server cabinet by means of the fixing structures thereof.

Abstract: A mounting mechanism for a plurality of hard disk drives is provided. The mounting mechanism includes a chassis, a cage slidably received in the chassis, and two latch members pivotably attached to opposite side plates of cage. Each of the latch members includes a hook. When the latch members are pivoted to locking positions, the hooks of the latch members engage with the chassis to prevent the cage from sliding out of the chassis. When the locking members are pivoted to unlocking positions, the hooks of the latch members disengage from the chassis, therefore, the cage can be withdrawn from the chassis.

Abstract: An expansion card module includes an expansion card, an adapter card electrically coupled to the expansion card, and a box enclosing the expansion card and the adapter card. The expansion card includes a fixing plate fixed to the box. The adapter card includes a connector to be electrically coupled to a motherboard of the computer by a cable. A mounting bracket for a storage device is not occupied by the storage device, but receives the box of the expansion card module therein.

Abstract: A server enclosure includes a bottom wall, two sidewalls extending from opposite sides of the bottom wall, a backboard to electrically connected to a number of hard disk drives, and two fixing elements. The fixing elements are fixed on opposite ends of the backboard. Each fixing element includes a connection board fixed on the backboard, a first fixing portion extending from a bottom of the connection board along a first direction, and a positioning arm extending from a side of the connection board along the first direction. The first fixing portion is fixed on the bottom wall. The positioning arm is slidably positioned on the corresponding sidewall to fix the backboard.

Abstract: A mounting apparatus is configured for securing a PCI card and includes a securing member and a latch member. The securing member extends along a first direction. A protrusion is located on the securing member. The latch member is capable of securing the other end of the PCI card and defines a securing slot. The protrusion is inserted in the secured slot along a second direction perpendicular to the first direction.

Abstract: A drive mount includes a first mounting frame and a second mounting frame. The first mounting frame includes a bottom plate which defines a first slot and a second slot therein. The first slot and the second slot intersect and angle from each other. An entrance port is formed between the first slot and the second slot. The second mounting frame includes a top plate with a connecting tube protruding towards the first mounting frame. A free end of the connecting tube expands outwardly to form a locking portion. The connecting tube and the locking portion of the second mounting frame are received in the entrance port, and the connecting tube can selectively slip along the first slot or the second slot, with the locking portion engaging edges of the first slot or the second slot to connect the first and second mounting frames together.