Abstract: Apparatus, systems and methods for irrigating lands are disclosed. In one example, an irrigation system is disclosed. The irrigation system includes a gate and a microcontroller unit (MCU). The gate is configured for adjusting a water flow for irrigating a piece of land. The MCU is configured for controlling the gate to adjust the water flow based on environmental information related to the piece of land.

Abstract: The present invention belongs to the technical field of diesel engines, and particularly relates to an engine cooling system and a cooling method therefor. In the engine cooling system of the present invention, when an engine needs to be warmed up, a first valve is opened, a lower engine body water storage chamber is in communication with an upper engine body water storage chamber, and some of the cooling water directly flows into the lower engine body water storage chamber from the upper engine body water storage chamber. The flow of the cooling water entering an engine body is reduced, and under the condition that heat dissipated by the engine is unchanged, the temperature rise of the cooling water flowing through the engine body such as a cylinder sleeve upper cooling water chamber and a cylinder sleeve lower water jacket is faster, such that an engine warming effect is improved.

Abstract: The present invention belongs to the technical field of diesel engines, and particularly relates to an engine cooling system and a cooling method therefor. In the engine cooling system of the present invention, when an engine needs to be warmed up, a first valve is opened, a lower engine body water storage chamber is in communication with an upper engine body water storage chamber, and some of the cooling water directly flows into the lower engine body water storage chamber from the upper engine body water storage chamber. The flow of the cooling water entering an engine body is reduced, and under the condition that heat dissipated by the engine is unchanged, the temperature rise of the cooling water flowing through the engine body such as a cylinder sleeve upper cooling water chamber and a cylinder sleeve lower water jacket is faster, such that an engine warming effect is improved.

Abstract: An electromagnetic stamping apparatus includes a work platform configured to load a work piece. A stamping component is coupled to the work platform and has a first position and a second position. The stamping component includes a stamping rod and a stamping head. The stamping head stamps the work piece on the first position. An electromagnetic device is coupled to the stamping rod and generates a magnetic force according to an alternating current to push the stamping component to the first position to make the stamping component stamp the work piece. A compression spring pushes the stamping component to the second position according to the restoring force of the compression spring. Wherein, the magnetic force is greater than the restoring force of the compression spring to make the stamping component stamp the work piece twice in every waveform period of the alternating current.

Abstract: An exhaust pipe assembly includes: an exhaust cavity; an exhaust port (234) and at least two air inlets (115) communicating with the exhaust cavity, the exhaust port (234) being disposed at an end of the exhaust pipe assembly; and a water inlet (114), a first part of a water inlet cavity (111), a second part of a water inlet cavity, a water counterflow cavity, and a water outlet (311) that are provided in the exhaust pipe assembly. The water inlets (114) are provided in the same number as the air inlets (115). The first part of the water inlet cavity (111) communicates with the first water inlet portion (114). The second part of the water inlet cavity communicates with the second water inlet portion (114). The water counterflow cavity communicates with the end of the second part of the water inlet cavity located at the exhaust port (234) of the exhaust pipe assembly. The water outlet (311) is disposed at a second end of the exhaust pipe assembly.

Abstract: An electromagnetic stamping apparatus includes a work platform configured to load a work piece. A stamping component is coupled to the work platform and has a first position and a second position. The stamping component includes a stamping rod and a stamping head. The stamping head stamps the work piece on the first position. An electromagnetic device is coupled to the stamping rod and generates a magnetic force according to an alternating current to push the stamping component to the first position to make the stamping component stamp the work piece. A compression spring pushes the stamping component to the second position according to the restoring force of the compression spring. Wherein, the magnetic force is greater than the restoring force of the compression spring to make the stamping component stamp the work piece twice in every waveform period of the alternating current.

Abstract: Exhaust pipe assembly (EPA) includes: exhaust cavity; exhaust port (EP) and at least two air inlets communicating with the exhaust cavity, the EP being disposed at an end of the EPA; and a water inlet, a first part of a water inlet cavity (WIC), a second part of a WIC, a water counterflow cavity (WCC), and a water outlet that are provided in the EPA. The water inlets are provided in the same number as the air inlets. The first part of the WIC communicates with the first water inlet portion (WIP). The second part of the WIC communicates with the second WIP. The WCC communicates with the end of the second part of the WIC located at the EP of the EPA. The water outlet is disposed at a second end of the EPA. The first part of the WIC and the WCC each communicate with the water outlet.

Abstract: A smart basket includes a basket body and a handle. The handle is located above the basket body. A plant light is connected with a manual switch through a conducting wire. The plant light is further connected with an interior of the basket body through the conducting wire. An inner side of the basket body is provided with a water hopper, a plastic inner tray, and an atomizer. An upper surface of the plastic inner tray is provided with collection grooves. The upper surface of the plastic inner tray is fixedly connected with the water hopper. The LED plant light of the smart basket provides the plant in the basket three-dimensional supplemental light, such that the plant can absorb light energy more evenly. The amount of the water in the water storage tank can be monitored, and the data can be transmitted to the user via Bluetooth.

Abstract: A fixing member for fixing a riser card with an edge connector includes a board for fixing the riser card, and a blocking piece connected to a bottom side of the board and adjacent to the edge connector. The blocking piece is arranged to abut a top of an expansion slot longer than the edge connector, to prevent the edge connector from being inserted into the expansion slot.

Abstract: A printed circuit board (PCB) comprising a base board, the base board defines a thermal pad and a plurality of pin pads for solder an integrated circuit (IC) with a Quad Flat No-lead (QFN) package, wherein a plurality of thermal vias are defined on the thermal pad through the base board, a solder mask is defined around each of the thermal vias.

Abstract: A circuit board structure includes a circuit board and at least one adsorption strip set on the circuit board. The circuit board defines at least one group of pin holes arranged along a predetermined line to receive a number of pins of an electronic component. The adsorption strip absorbs excess conducting material between adjacent pins during a wave-soldering process.

Abstract: A protection circuit is connected between a fan control chip and a fan connector. The protection circuit includes a first resistor and a diode. A detecting pin of the fan control chip is connected to the anode of the diode. The cathode of the diode is connected to a detecting pin of the fan connector. The anode of the diode is also connected to a first power source through the first resistor.

Abstract: A voltage pin of a PWM controller is electrically connected to a power source. First and second gate pins of the PWM controller are electrically connected to gates of first and second MOSFETs, respectively. A phase pin of the PWM controller is electrically connected to a source of the first MOSFET and a drain of the second MOSFET, and also electrically connected to an input pin of the PWM controller through a second inductor and a first resistor in that order. A drain of the first MOSFET is connected to the power source through a first inductor. The input pin of the PWM controller is grounded through a second resistor and connected to a first terminal of an electronic switch through a third resistor. A second terminal of the electronic switch is grounded. A control terminal of the electronic switch is connected to a motherboard.

Abstract: A fixing member for fixing a riser card with an edge connector includes a board for fixing the riser card, and a blocking piece connected to a bottom side of the board and adjacent to the edge connector. The blocking piece is arranged to abut a top of an expansion slot longer than the edge connector, to prevent the edge connector from being inserted into the expansion slot.

Abstract: A soldering assistance device is used for soldering a multi-pin electronic element with a row of pins on a PCB. The row of pins includes an outer pin at two ends thereof. The soldering assistance device includes a holding portion and a soldering portion connected to the holding portion. The soldering portion is adjacent to the outer pin. An interval between the soldering portion and the outer pin is less than an interval between each two adjacent pins of the row of pins. The soldering portion is made of a metal which is easy to solder. A soldering method using the soldering assistance device is also provided.

Abstract: A time sequence control circuit is provided to control time sequence of a motherboard of a computer. A first voltage received by a power supply receiving terminal is greater than a preset voltage before a signal control terminal on the motherboard receives a second voltage during turning on the computer. During shutting off the computer, the first voltage at the power supply receiving terminal drops and is less than the preset voltage, and the second voltage supplied to the signal control terminal on the motherboard is shut off.

Abstract: A time sequence control circuit that can control time sequence of a computer. After the computer is turned on, a power supply terminal outputs a high level enabling signal to an enabling pin of a power supply circuit, the power supply circuit is active. A power supply pin of the power supply circuit outputs a standard voltage to a power pin of each of the motherboard components. A first electronic switch is turned on, a second electronic switch is turned off, and a power supply state pin of the power supply circuit outputs a high level power supply state signal to a power state input pin of a main chip after the power supply circuit outputs the standard voltage.

Abstract: A time sequence control circuit that can control time sequence of a computer. After the computer is turned on, a power supply terminal outputs a high level enabling signal to an enabling pin of a power supply circuit, the power supply circuit is active. A power supply pin of the power supply circuit outputs a standard voltage to a power pin of each of the motherboard components. A first electronic switch is turned on, a second electronic switch is turned off, and a power supply state pin of the power supply circuit outputs a high level power supply state signal to a power state input pin of a main chip after the power supply circuit outputs the standard voltage.

Abstract: A time sequence control circuit is provided to control time sequence of a motherboard of a computer. A first voltage received by a power supply receiving terminal is greater than a preset voltage before a signal control terminal on the motherboard receives a second voltage during turning on the computer. During shutting off the computer, the first voltage at the power supply receiving terminal drops and is less than the preset voltage, and the second voltage supplied to the signal control terminal on the motherboard is shut off.

Abstract: A magnet band includes: a flexible band body formed with pockets and through-holes; magnetic elements respectively retained in the pockets of the band body; a pair of belts, each of which has a connecting end portion; and a pair of connectors, each of which includes a pair of tabs secured to the connecting end portion of a respective one of the belts, and each of which is provided with at least one first interlocking member on one of the tabs, and at least one second interlocking member on the other of the tabs. The tabs of each of the connectors are connected to the band body in such a manner that that the first interlocking member on one of the tabs extends through a selected one of the through-holes to interlock the second interlocking member on the other of the tabs.