Abstract: A heat exchanger and an air conditioning system having the same. The heat exchanger includes at least one of a first heat exchanger unit and a second heat exchanger unit, and the heat exchanger has a V-shaped or inverted V-shaped shape. The first heat exchanger unit includes a first heat exchanger core segment and a second heat exchanger core segment, which are arranged side by side and each have heat exchange tube(s) and fin(s). A size of the first heat exchanger core segment of the first heat exchanger unit is larger than or equal to that of the second heat exchanger core segment of the first heat exchanger unit.

Abstract: An image sensor includes a first substrate and a photoelectric structure in the first substrate. The first substrate includes opposite first surface and second surfaces. The conductivity type of the photoelectric structure is opposite to that of the first substrate. The photoelectric structure includes a second doped region and multiple first doped regions. Each of the first doped regions is connected to the second doped region. The distance from the second doped region to the first surface is smaller than the distance from the first doped region to the first surface. The size of the first doped region in a direction parallel to the first surface is smaller than or equal to the size of the second doped region in the direction. The quantum efficiency (QE), detection band, and photo-sensing capability are improved.

Abstract: A device for measuring and protecting a horizontal slide table displacement, comprising: a displacement detected assembly, a displacement detection assembly and a vibration controller, wherein the displacement detected assembly vibrates synchronously with a horizontal slide table top, the displacement detection assembly is configured to measure a displacement value of the displacement detected assembly and transmit the displacement value to the vibration controller, and the vibration controller is used to control the horizontal slide table to vibrate or stop vibrating. The device can achieve the limitation and protection of the horizontal slide table displacement and the device may be flexibly mounted on the horizontal slide table, and has characteristics such as convenient installation and simple use.

Abstract: In a method, apparatus and storage medium for filling a k-space trajectory in magnetic resonance (MR) imaging, a blank window, following an RF excitation pulse, is set in an arbitrary spatial encoding direction, and a first MR signal is acquired in this blank window, to obtain the phase of the first MR signal. A gradient field is activated outside the blank window and a second MR signal is acquired to obtain the phase of the second MR signal. This first and second MR signals are entered into k-space along first k-space and second k-space trajectories that are respectively based on the phase of the first MR signal and the phase of the second MR signal. A calibrated k-space trajectory in the spatial encoding direction is determined based on the first and second k-space trajectories.

Abstract: This present invention provides an automatic pot seedlings feeding mechanism for semi-automatic transplanter, comprising a transmission mechanism, a slider-crank mechanism, a stop lever, a side plate, a resetting mechanism and a bearing with bearing support. The transmission mechanism includes a transmission shaft I, a driving wheel, a transmission shaft II, a transmission shaft III and a conveyor belt. Under the performance of the conveyor belt, the pot seedlings are transported forward to the position of the stop lever. The slider-crank mechanism comprises a crank, a slider bar and a sliding chute, the crank and the driving wheel are connected through a revolute pair A, which is on the driving wheel, but not at the center of the driving wheel. The slider is securely connected with the resetting mechanism.

Abstract: In a method, apparatus and storage medium for filling a k-space trajectory in magnetic resonance (MR) imaging, a blank window, following an RF excitation pulse, is set in an arbitrary spatial encoding direction, and a first MR signal is acquired in this blank window, to obtain the phase of the first MR signal. A gradient field is activated outside the blank window and a second MR signal is acquired to obtain the phase of the second MR signal. This first and second MR signals are entered into k-space along first k-space and second k-space trajectories that are respectively based on the phase of the first MR signal and the phase of the second MR signal. A calibrated k-space trajectory in the spatial encoding direction is determined based on the first and second k-space trajectories.

Abstract: A thin film transistor and its manufacturing method, an array substrate and a display device are disclosed, the thin film transistor is of a gate bottom contact type, and includes a gate electrode (3) and a gate insulation layer (2), the gate insulation layer (2) is provided with a recess (4) at a position corresponding to the gate electrode (3). With the thin film transistor, the problem of wire breakage in the active layer at the channel between the source/drain electrodes can be avoided, the performance and stability of the thin film transistor is improved, and the production cost is lowered down.

Abstract: Disclosed is a multifunctional muscle exerciser comprising two handles (1, 2). The two handles (1, 2) each comprise a connection end (1a, 2a) and a grip end (1b, 2b). A torsional spring (3) is connected between the connection ends (1a, 2a) of the two handles (1, 2). The torsional spring (3) is composed of stacked multichip spring steel pieces (31). The two ends of the multichip spring steel pieces (31) are respectively connected via fasteners. Preferably, both of the two handles (1, 2) are U-shaped. The connection ends (1a, 2a) of the two handles (1, 2) are coaxially arranged. The grip ends (1b, 2b) of the two handles (1, 2) are in parallel but are not on the same straight line.

Abstract: A microwave filter has a housing defining an inner cavity. A first resonator is positioned in a first portion of the inner cavity. A second resonator is positioned in a second portion of the inner cavity. A third resonator is positioned in a third portion of the inner cavity. The first resonator and the third resonator are cross-coupled via an iris. The second resonator is elongated and is coupled to the first resonator and the third resonator. The resulting microwave filter has a frequency response having a transmission zero in the lower stopband. A high-pass filter is realized without the use of a cross-coupling probe.

Abstract: An organic thin film transistor, a manufacturing method thereof and an array substrate are provided. The manufacturing method of an organic thin film transistor includes: forming an organic semiconductor layer; partially sheltering the organic semiconductor layer, so that a sheltered region and an unsheltered region are formed on the organic semiconductor layer, the sheltered region corresponding to a region where an active layer of the organic thin film transistor needs to be formed; and doping the organic semiconductor layer, so that the organic semiconductor layer in correspondence with the sheltered region is not doped, and the organic semiconductor layer in correspondence with the unsheltered region is doped.

Abstract: This present invention provides an automatic pot seedlings feeding mechanism for semi-automatic transplanter, comprising a transmission mechanism, a slider-crank mechanism, a stop lever, a side plate, a resetting mechanism and a bearing with bearing support. The transmission mechanism includes a transmission shaft I, a driving wheel, a transmission shaft II, a transmission shaft III and a conveyor belt. Under the performance of the conveyor belt, the pot seedlings are transported forward to the position of the stop lever. The slider-crank mechanism comprises a crank, a slider bar and a sliding chute, the crank and the driving wheel are connected through a revolute pair A, which is on the driving wheel, but not at the center of the driving wheel. The slider is securely connected with the resetting mechanism.

Abstract: An organic thin film transistor, a manufacturing method thereof and an array substrate are provided. The manufacturing method of an organic thin film transistor includes: forming an organic semiconductor layer; partially sheltering the organic semiconductor layer, so that a sheltered region and an unsheltered region are formed on the organic semiconductor layer, the sheltered region corresponding to a region where an active layer of the organic thin film transistor needs to be formed; and doping the organic semiconductor layer, so that the organic semiconductor layer in correspondence with the sheltered region is not doped, and the organic semiconductor layer in correspondence with the unsheltered region is doped.

Abstract: Disclosed is a multifunctional muscle exerciser comprising two handles (1, 2). The two handles (1, 2) each comprise a connection end (1a, 2a) and a grip end (1b, 2b). A torsional spring (3) is connected between the connection ends (1a, 2a) of the two handles (1, 2). The torsional spring (3) is composed of stacked multichip spring steel pieces (31). The two ends of the multichip spring steel pieces (31) are respectively connected via fasteners. Preferably, both of the two handles (1, 2) are U-shaped. The connection ends (1a, 2a) of the two handles (1, 2) are coaxially arranged. The grip ends (1b, 2b) of the two handles (1, 2) are in parallel but are not on the same straight line.

Abstract: An organic thin film transistor, a manufacturing method thereof and an array substrate are provided. The manufacturing method of an organic thin film transistor includes: forming an organic semiconductor layer; partially sheltering the organic semiconductor layer, so that a sheltered region and an unsheltered region are formed on the organic semiconductor layer, the sheltered region corresponding to a region where an active layer of the organic thin film transistor needs to be formed; and doping the organic semiconductor layer, so that the organic semiconductor layer in correspondence with the sheltered region is not doped, and the organic semiconductor layer in correspondence with the unsheltered region is doped.

Abstract: The present disclosure provides a thin film transistor (TFT), its manufacturing method, an array substrate and a display device. The method for manufacturing the TFT includes steps of forming patterns of a gate electrode, a source electrode and a drain electrode on a base substrate; and forming a pattern of an active layer and a pattern of a passivation layer covering the active layer by a single patterning process. The passivation layer is made of a negative or positive photoresist, and the active layer is insulated from the gate electrode and electrically connected to the source electrode and the drain electrode.

Abstract: An organic thin film transistor and a method of manufacturing the same, an array substrate and a display device are disclosed. The thin film transistor including: a source electrode (4), a drain electrode (5), an organic semiconductor layer (6) disposed on the source electrode (4) and drain electrode (5), and a modified layer (7); the modified layer (7) is disposed at a position below an organic semiconductor layer (6) and corresponding to the source electrode (4) and the drain electrode (5), covers the source electrode (4) and the drain electrode (5), and is configured to change a contact angle on both the source electrode (4) and the drain electrode (5). The thin film transistor avoids the problems of poor formation effects and easy disconnection of the organic semiconductor layer (6) because of the large contact angle on electrode layers, and therefore reduces production costs.

Abstract: An organic thin film transistor and a preparation method thereof, an array substrate and a preparation method thereof, and a display device; and the preparation method of the organic thin film transistor comprises: forming a source-drain metal layer including a source electrode (12a) and a drain electrode (12b), and forming an organic semiconductor active layer (13) in contact with the source electrode (12a) and the drain electrode (12b); and forming an organic insulating thin film (140) on a substrate (10) where the source-drain metal layer and the organic semiconductor active layer (13) have been formed, thinning the organic insulating thin film (140) and curing the thinned organic insulating thin film (140), or curing the organic insulating thin film (140) and thinning the cured organic insulating thin film (140), to form an organic insulating layer (14). The method can be used to form a thin and uniform organic insulating layer, so a technical difficulty in forming a via hole is reduced.