Abstract: The present application relates to a rolling curtain and an assembling method thereof. The rolling curtain includes a roller, a curtain cloth, a lower rod, a motor, a spiral spring device, a first fixed bracket and a second fixed bracket. The spiral spring device further includes a fixed shaft, an outer rotatable frame, a spiral spring and an inserting pin. Pin holes corresponding to each other are provided on the fixed shaft and the outer rotatable frame respectively. The spiral spring is tightened and mounted in the outer rotatable frame. The inserting pin is inserted in the pin holes of the fixed shaft and the outer rotatable frame to fixedly connect the fixed shaft tot the outer rotatable frame.

Abstract: The present disclosure provides an electronic cigarette atomizer, including an atomization assembly and a liquid reservoir engaging with the atomization assembly. The liquid reservoir includes a liquid storage cavity. The atomization assembly includes a first holder, a second holder, and a heating assembly located between the first holder and the second holder. The heating assembly includes a porous body and at least one heater engaging with the porous body, and the porous body has an atomizing surface and a liquid-absorbing surface. The liquid-absorbing surface and the atomizing surface are respectively located on two opposite sides of the porous body, the liquid-absorbing surface is in fluid communication with the liquid storage cavity, and an atomization cavity is formed between the atomizing surface and the second holder.

Abstract: The present disclosure relates to a ventilation valve configured to be mounted to a liquid reservoir of an electronic atomizing device. The ventilation valve includes: a valve sleeve connected to the liquid reservoir and provided with a through hole, the through hole in communication with a storage cavity of the liquid reservoir; and a valve element having air permeability and including an oleophobic material layer adjacent to the storage cavity, and a semi-permeable membrane connected to an end of the oleophobic material layer away from the storage cavity, the oleophobic material layer filling at least a part of the through hole.

Abstract: A self-propelled platform for monitoring field crop phenotype is provided. The monitoring platform includes a traveling and steering mechanism, wheel track and ground clearance adjustment devices, damping devices, and a case. The traveling and steering mechanism includes wheel side motors, wheels, and torque motors. The wheels are connected to respective upright posts of the platform through respective rigid independent suspensions. Each upright post is of sleeve structure and includes an upper sleeve and a lower sleeve. A corresponding damping device is connected between the upper sleeve and the lower sleeve. The wheel track and ground clearance adjustment devices are configured for adjusting the height of the case and the tracks between the wheels. The lower ends of the wheel track and ground clearance adjustment devices are rotatably connected to respective upright posts, and the upper ends are rotatably connected to the case.

Abstract: The disclosure discloses an apparatus for online volumetrically detecting grain yield based on weight calibration comprising left volumetric granary, right volumetric granary and push board. The left volumetric granary is provided on its bottom with first weighing sensor, and in its side with unload grain port opening and first closing door, the right volumetric granary is provided on its bottom with second weighing sensor, and in its side with unload grain port opening and second closing door, the left volumetric granary and the right volumetric granary are provided on their tops with the push board, the push board is a hollow box structure with a top side and a bottom side both opened, and is slidably mounted to a top of the left volumetric granary and the right volumetric granary through a slide driving mechanism.

Abstract: A self-propelled platform for monitoring field crop phenotype is provided. The monitoring platform includes a traveling and steering mechanism, wheel track and ground clearance adjustment devices, damping devices, and a case. The traveling and steering mechanism includes wheel side motors, wheels, and torque motors. The wheels are connected to respective upright posts of the platform through respective rigid independent suspensions. Each upright post is of sleeve structure and includes an upper sleeve and a lower sleeve. A corresponding damping device is connected between the upper sleeve and the lower sleeve. The wheel track and ground clearance adjustment devices are configured for adjusting the height of the case and the tracks between the wheels. The lower ends of the wheel track and ground clearance adjustment devices are rotatably connected to respective upright posts, and the upper ends are rotatably connected to the case.

Abstract: The disclosure discloses an apparatus for online volumetrically detecting grain yield based on weight calibration comprising left volumetric granary, right volumetric granary and push board. The left volumetric granary is provided on its bottom with first weighing sensor, and in its side with unload grain port opening and first closing door, the right volumetric granary is provided on its bottom with second weighing sensor, and in its side with unload grain port opening and second closing door, the left volumetric granary and the right volumetric granary are provided on their tops with the push board, the push board is a hollow box structure with a top side and a bottom side both opened, and is slidably mounted to a top of the left volumetric granary and the right volumetric granary through a slide driving mechanism.

Abstract: A system and associated method for controlling access to features of a device are provided. The system includes a feature access component that maintains an access control register configured to store an access control parameter indicating whether a user has access to a feature of the device. Responsive to receiving a request to modify the access control register to enable or disable access to the feature, an access authentication parameter is set to an authentication key of the request and an access parameter is set to a value of the request (e.g., 1 “Enable”). The access authentication parameter and access parameter are evaluated utilizing an authentication algorithm. Responsive to successfully authenticating the request, the access control register is modified based upon the value of the access parameter, such as to indicate that the user is now authorized to read and/or modify a parameter and/or invoke a service to execute.

Abstract: The invention relates to an apparatus for simultaneous online assay of nitrites and nitrates in water samples with improved sensitivity and accuracy, enhanced capacity of anti-interference against salinity, reduced assay costs, and simplified operation.

Abstract: A system and associated method for controlling access to features of a device are provided. The system includes a feature access component that maintains an access control register configured to store an access control parameter indicating whether a user has access to a feature of the device. Responsive to receiving a request to modify the access control register to enable or disable access to the feature, an access authentication parameter is set to an authentication key of the request and an access parameter is set to a value of the request (e.g., 1 “Enable”). The access authentication parameter and access parameter are evaluated utilizing an authentication algorithm. Responsive to successfully authenticating the request, the access control register is modified based upon the value of the access parameter, such as to indicate that the user is now authorized to read and/or modify a parameter and/or invoke a service to execute.

Abstract: The invention relates to an apparatus for simultaneous online assay of nitrites and nitrates in water samples with improved sensitivity and accuracy, enhanced capacity of anti-interference against salinity, reduced assay costs, and simplified operation.

Abstract: A device for recovering electric energy in an AC motor-driven electric vehicle. The device includes a battery, a single-phase or three-phase inverter, a single-phase or three-phase inductor, an AC motor, a rectifier bridge or a second inverter, and a charger. The anode and the cathode of the battery are connected to input ends of the inverter, respectively. An output end of the inverter is connected to the AC motor via a primary coil of the inductor. An output end of a secondary coil of the single-phase or three-phase inductor is connected to an input end of the rectifier bridge or the second inverter. Output ends of the rectifier bridge are connected to the anode and the cathode of the battery, respectively. The charger is connected to the anode and the cathode of the battery for supplying power from an external power supply.

Abstract: A device for recovering electric energy in a DC motor-driven electric vehicle. The device includes a battery; a first inverter; an inductor; a first rectifier bridge or a second inverter; a DC motor; a second rectifier bridge or a third inverter; and a charger. The anode and the cathode of the battery are connected to input ends of the first inverter, respectively. One output end of the first inverter is connected to one end of a primary coil of the inductor. Another output end of the first inverter is connected to one input end of the first rectifier bridge or the second inverter. Another end of the primary coil of the inductor is connected to another input end of the first rectifier bridge. The charger is connected to the anode and the cathode of the battery for supplying power from an external power supply.

Abstract: An apparatus and method for selecting a keyboard key based on a position of a presence of a conductive object on a sensing device and a pre-defined area of the keyboard key. The apparatus may include a sensing device and a processing device. The sensing device may include a plurality of sensor elements to detect a presence of a conductive object on the sensing device. Multiple keyboard keys are assigned to pre-defined areas of the sensing device. The processing device is coupled to the sensing device using capacitance sensing pins, and may be operable to determine a position of the presence of the conductive object, and to select a keyboard key based on the position of the conductive object and the pre-defined areas of the sensing device.

Abstract: Antenna amplifiers and automobile top antenna devices are provided. The antenna amplifier includes an AM frequency selection circuit, an AM signal amplification circuit, an FM frequency selection circuit, an FM signal amplification circuit, and a power circuit. The antenna amplifier is further provided with a trap circuit that has an end connected to the ground terminal of the antenna amplifier, and another end connected to a metal mounting base for an antenna on the automobile top. The antenna device includes a shark-fin antenna case, a metal mounting base, an antenna support and a radio receiving antenna. The antenna case is mounted on the metal mounting base to form an internal accommodation space in which the antenna support, the radio receiving antenna and a circuit board with an antenna amplifier are provided.

Abstract: A device for recovering electric energy in an AC motor-driven electric vehicle. The device includes a battery, a single-phase or three-phase inverter, a single-phase or three-phase inductor, an AC motor, a rectifier bridge or a second inverter, and a charger. The anode and the cathode of the battery are connected to input ends of the inverter, respectively. An output end of the inverter is connected to the AC motor via a primary coil of the inductor. An output end of a secondary coil of the single-phase or three-phase inductor is connected to an input end of the rectifier bridge or the second inverter. Output ends of the rectifier bridge are connected to the anode and the cathode of the battery, respectively. The charger is connected to the anode and the cathode of the battery for supplying power from an external power supply.