Abstract: A fan assembly and an electronic device are provided in the present disclosure. The electronic device comprises a housing and the fan assembly mounted in the housing. The housing is provided with a receiving chamber, a first opening, and a second opening. The fan assembly includes a plurality of brackets, a fan unit, and a plurality of locking mechanisms. The fan unit includes a mounting plate and a plurality of fan sections. The fan unit may be fitted in the receiving chamber in a forward state or a backward state, to achieve a forward airflow or a backward airflow. Each of the plurality of fan sections may be locked to each bracket by each locking mechanism and be taken out from the receiving chamber with a corresponding bracket.

Abstract: Systems, apparatus, and methods for energy harvesting in data centers are disclosed. An example apparatus includes interface circuitry; machine-readable instructions; and at least one processor circuit to at least one of instantiate or execute the machine-readable instructions to estimate first power consumption values for electronic components of a first rack; estimate second power consumption values for electronic components of a second rack; determine a first selection score for the first rack based on the first power consumption values and a second selection score for the second rack based on the second power consumption values; select a first electronic component of the first rack or a second electronic component of the second rack to receive a workload based on the first selection score and the second selection score; and cause the selected one of the first electronic component or the second electronic component to perform the workload.

Abstract: A magnetite-based micro/nanorobot and a preparation method and use thereof are provided. The magnetite-based micro/nanorobot uses a polydopamine-coated magnetite as a carrier that is loaded with an anti-inflammatory drug and is finally coated with sodium alginate. The magnetite-based micro/nanorobot of the present disclosure improves a loading effect of the drug resveratrol and has an excellent anti-inflammatory effect. The magnetite-based micro/nanorobot of the present disclosure does not have obvious cytotoxicity, and exhibits excellent biocompatibility and high safety performance. The magnetite-based micro/nanorobot of the present disclosure allows the responsive release according to different pH values of a gastrointestinal environment. Compared with the traditional drug carriers, the magnetite-based micro/nanorobot of the present disclosure has a high rate and prominent targetability, and can be prepared by a method involving simple steps and easy operations.

Abstract: A control device includes a first capacitor, a drive controller, a constant current source, a discharge-controlled current source, a current mirror, and a sample-and-hold circuit. The constant current source generates a constant current. The discharge-controlled current source is coupled to the constant current source and the first capacitor. The current mirror is coupled to the first capacitor and the primary side of a primary-side switch. The current mirror generates a copy current, thereby generating a copy voltage across the first capacitor. When the drive controller turns on the primary-side switch, the sample-and-hold circuit drives the discharge-controlled current source to sample and hold a control current from the constant current and the copy current. When the node voltage is higher than the copy voltage, the comparison circuit drives the drive controller to turn off the primary-side switch.

Abstract: An apparatus is described. The apparatus includes a liquid cooling system having multiple heat-exchangers and multiple valves. The multiple valves are to enable/disable participation of individual ones of the heat-exchangers within the liquid cooling system. The apparatus includes an information keeping device to store information that correlates a number of the multiple heat exchangers to be enabled to realize one or more semiconductor chips' target temperature for a power consumption of the one or more semiconductor chips for a plurality of combinations of target temperature and power consumption.

Abstract: An anti-tampering mechanism includes a first bracket, a second bracket, and multiple conductive members. The second bracket is moveably covered on the first bracket, the multiple conductive members are randomly disposed in a plurality of receptacles in the second bracket. The second bracket is configured to deform to move toward the first bracket under pressure of a circuit board, the circuit board contacts with the conductive members to form an electrical connection, and the second bracket is further configured to restore to move away from the first bracket after the circuit board being removed, causing the conductive members to pop out of the receptacles. An electronic device including the anti-tampering mechanism is also provided to prevent unauthorized personnel from continuing to use the electronic device after disassembly or tampering the electronic device.

Abstract: A drying air duct, a clothing treatment device and a method for cleaning a drying air duct are provided. The drying air duct includes a condensing section air duct, a heating section air duct and a fan; the fan is provided at a connection position of the condensing section air duct and the heating section air duct, a cleaning device is provided in the condensing section air duct, the cleaning device is provided at an end of the condensing section air duct adjacent to the fan and is capable of cleaning a side of the condensing section air duct away from the fan. The drying air duct can effectively clean the pipe sudden expansion area of the condensing section air duct, preventing the accumulation of soft flocks in the condensing section air duct.

Abstract: An apparatus is described. The apparatus includes an electronic system having a printed circuit board with electronic components mounted thereon. At least some of the electronic components are coupled to components of a liquid cooling system. The electronic system has a light source and a photosensitive element. The light source is to illuminate an illuminated region of the printed circuit board and/or at least one of the electronic components. The photosensitive element is to detect a change in reflection from the illuminated region in response to the presence of coolant that has leaked from the liquid cooling system within the illuminated region.

Abstract: A bidirectional hybrid power conversion system includes a symmetric hybrid unit, a transient state detection unit, a conversion control unit, and a feedback unit. The symmetric hybrid unit converts an input voltage into an output voltage with different conversion ratios. The feedback unit generates a feedback signal according to the output voltage and a reference voltage. The conversion control unit is connected with the symmetric hybrid unit and the feedback unit controls the symmetric hybrid unit to adjust the conversion ratio for regulating the output voltage according to the feedback signal. The transient state detection unit is connected with the feedback unit and the conversion control unit outputs a detection signal to the conversion unit according to the feedback signal. According to the detection signal, the conversion control unit controls the symmetric hybrid unit adjusts the conversion ratio, and converts the input voltage into the output voltage stably.

Abstract: A driving device includes a first current source, a second current source, a first common-mode current elimination (CMCE) circuit, a second common-mode current elimination (CMCE) circuit, a current-to-voltage converter, and a first comparator. The current sources provide constant currents. The current-to-voltage converter includes a first current mirror and a second current mirror. The control terminal of the first current mirror is coupled to the second CMCE circuit. The control terminal of the second current mirror is coupled to the first CMCE circuit. The first current mirror and the second current mirror receive the constant currents, common-mode currents, and differential currents, thereby controlling the first CMCE circuit and the second CMCE circuit to generate a voltage difference that excludes a common-mode voltage corresponding to the common-mode currents. The first comparator receives the voltage difference to drive a field-effect transistor.

Abstract: An apparatus and method for cooling a computing system, comprising a plurality of electronic components, with a cooling system. The cooling system includes a closed loop for the two-phase coolant, wherein the two-phase coolant has a saturation temperature. The closed loop includes a valve fluidly connected between an outlet of a heat exchanger and an inlet of a plurality of evaporator structures configured to be thermally coupled to the plurality of electronic components, and a compressor fluidly connected between an outlet of the plurality of evaporator structures and an inlet of the heat exchanger. The apparatus and method for the cooling system are configured to monitor one or more system temperatures of the computing system and adjust an operation of at least one of the valve or the compressor to alter the saturation temperature based on the one or more system temperatures.

Abstract: A corrosion-resistant and high toughness oil casing includes a chemical composition. The chemical composition includes, by mass %, C: 0.01% to 0.04%, Si: 0.1% to 0.8%, Mn: 0.05% to 0.25%, Cr: 11.0% to 14.0%, Mo: 1.5% to 2.8%, Cu: 0.5% to 1.8%, Ni: 3.7% to 5.0%, N: 0.03% to 0.05%, Al: 0.001% to 0.05%, B: 0.001% to 0.005%, Ti: 0.03% to 0.08%, La: 0.07% to 0.35%, Ce: 0.12% to 0.40%, P: 0.013% or less, S: 0.001% or less, and the balance being Fe and inevitable impurities. The mass % of the chemical composition satisfies the following relationships: [Ni]/[Cu]?3.0, and 4360?([Ni]+[Cr]+[Mo])/[B]?16200. The microstructure of the oil casing includes, in terms of volume fraction, 10% to 20% of a ferrite phase, 5% to 20% of a retained austenite phase and the balance of a tempered martensite phase.

Abstract: Systems, apparatus, articles of manufacture, and methods to mitigate hotspots in integrated circuit packages using gimballing nozzles and jet vectoring impingement are disclosed. An apparatus includes an array of nozzles to direct a cooling fluid toward an integrated circuit package. The array of nozzles includes a first nozzle and a second nozzle. The apparatus further includes a plate to carry the array of nozzles. The first nozzle is selectively moveable relative to the integrated circuit package and relative to the second nozzle. Movement of the first nozzle relative to the integrated circuit package including rotational movement and translational movement.

Abstract: An apparatus is described. The apparatus includes a chip package cooling assembly chamber having one or more features to receive one or more heat pipes that receive heat generated by one or more semiconductor devices that reside outside the chip package. In detail, the heat pipes that are thermally coupled to the VR FET heat sinks are attached to the outside of the cold plate (again, they can be screwed to the cold plate with a thermal interface material between them). Thus, heat generated by the VR FETs is transferred to the VR FET heatsinks and the chip package cold plate via the heat pipes. The heat is then transferred to the fluid while it runs through the cold plate and is removed from the system by the fluid as it exits the outlet.

Abstract: In some embodiments, an immersion cooling system comprises a spring damper, a crumple block, a frictional layer, and/or preloaded spring-based mounts to mitigate the effects of seismic events. In other embodiments, the combined mass of liquids in the immersion tank and a compensation tank is kept constant to maintain the system's response to seismic events. In still other embodiments, an immersion cooling system comprises a tunable mass to provide an active response to seismic events. In yet other embodiments, an immersion tank is located within a housing pallet and is moveable within the palette. Spring dampers dampen tank movement within the pallet and shutoff switches housed in the pallet cause power to components in the tank to be shut off in response to tank movement. Cooling liquid can be transferred from the tank to a secondary reservoir to avoid cooling liquid loss and protect the tank.

Abstract: A robot includes a housing including a first shell and a second shell and having a first configuration and a second configuration, a rack disposed in an inner cavity of the housing, a telescopic assembly disposed on the rack and connected between the first shell and the second shell, and a rotary wing assembly disposed on the rack and having a folded configuration and a flight configuration. The rotary wing assembly includes: a folding arm with one end rotatably connected to the rack, a rotary wing, and a tilting arm connected between the rotary wing and the folding arm, the tilting arm and the rotary wing are extended to an outside of the housing to be adapted to drive the robot to fly in the flight configuration, and the tilting arm is rotatable relative to the folding arm to adjust a rotation direction of the rotary wing.

Abstract: An airflow heating module for an equipment front-end module, including: a first perforated plate including a first plurality of holes used as airflow inlets; a second perforated plate including a second plurality of holes used as airflow outlets; a plurality of heaters provided between the first and the second perforated plates; and an active air intake device provided on the first perforated plate to accelerate airflow flowing through the first plurality of holes and past the plurality of heaters, such that the airflow carries heat generated by the heaters and passes through the second plurality of holes. Each of the heaters includes a heating tube and a fin. The fin is formed helically around the heating tube and attached thereto.

Abstract: A stator of a brushless motor is disclosed which includes a stator core, an insulating frame arranged on the stator core, and a plurality of windings wound around the insulating frame. The stator core includes a ring-shaped yoke part and a pole part mounted to the radial inner side of the yoke part. The pole part includes a plurality of teeth spaced-apart from each other along the circumferential direction, and a ring-shaped portion arranged at and connected to the radial inner side of the teeth. The radial outer sides of the teeth abut against the radial inner side of the yoke part. The insulating frame is arranged on the pole part. A plurality of power terminals are fixed to one axial end of the insulating frame and respectively electrically connected to the windings.