9 results about "Intermediate band" patented technology

The utility model provides a spherical tablet, and belongs to the field of pharmaceutical preparations. The spherical tablet comprises an upper hemisphere, a lower hemisphere and a middle belt, and the middle belt is located in the middle of the spherical tablet and is in a belt shape with the same thickness. The upper hemisphere and the lower hemisphere are located on the two end faces of the middle belt, and the two hemispheres are the same in size and shape. The diameter of the middle zone is larger than the diameter of the hemisphere, the diameter of the hemisphere of an upper stamping die and the diameter of the hemisphere of a lower stamping die of a tablet pressing die adopted when the spherical tablet is pressed ranges from 6.5 mm to 10 mm, and the ratio of the arc depth to the diameter of the hemisphere is (0.2-0.4): 1. The spherical tablet is small in size, easy to swallow, high in drug loading capacity and less in taking quantity; and the tablet has the advantages of good compressibility, good hardness, strong shock resistance and wear resistance, small tablet weight difference, facilitation of later coating and other operations, and good uniformity and reproducibility.

The application discloses a kind of hybrid perovskite materials based on charge transfer state mediation infrared light gate control wide spectrum response and its preparation method and application, belong to photoelectric functional material technical field.The technical scheme of the present application introduces strong electron-withdrawing, photochromic active pyridinium cation into 0~3 dimensional metal halide perovskite structure to construct an intermediate band near the bottom of inorganic conduction band, which is formed by the low-lying orbit of organic cation.Under UV / vis light pumping, electrons are first excited from the valence band to the conduction band, and then rapidly transferred to the intermediate band, forming a charge transfer state (CT state) with a lifetime of nanoseconds.On the basis of this pre-filled CT state, the electrons are lifted back to the conduction band using infrared single-photon excitation, achieving single-photon infrared photoresponse below the band gap, thereby expanding the effective response band of the photodetector to at least 7 μm.

The invention relates to an intermediate band semiconductor material and a preparation method thereof.The chemical formula of the intermediate band semiconductor material is Sr4In2Sb2O5Q5, Q is S or Se, the intermediate band semiconductor material is prepared from reaction raw materials containing the Sr element, the In element, the Sb element, the Q element and the O element through a high-temperature solid-phase reaction method, and the intermediate band semiconductor material has the characteristics of multi-band absorption and large photo-generated current; and the material has relatively high photoelectric response characteristic and excellent photoelectric property.

This invention discloses a method, system, and readable storage medium for nonlinear simulation of remote sensing images. The method includes: inputting a panchromatic image and a multispectral band image; registering the multispectral image with the panchromatic image and resampling it according to high spatial resolution bands; statistically analyzing the mean, root mean square error, and correlation coefficient matrix of the panchromatic and multispectral images; constructing an intermediate band I using the low-resolution multispectral image; constructing an image simulation operator using histogram feature matching of the remote sensing images; and calculating the feature fusion coefficient k. E and feature extraction coefficient k I The method of this invention determines the image simulation scheme and performs image simulation band by band. There is no limitation on the number of image bands, and the simulation results of remote sensing images can be predicted. This invention provides two image simulation modes: panchromatic image injection into multispectral image and multispectral image injection into panchromatic image, enabling high-fidelity simulation of the spectral and spatial information of ground features in remote sensing images.

A cell design for power distribution in a CFET SRAM device is presented, the back side of the device being connected to the front side thereof using an intermediate band cell. A device includes an array of cells disposed on a substrate. The cell array includes a first array portion and a second array portion separated in a first direction in a top view of the device. The device also includes an intermediate band cell array disposed between the first array portion and the second array portion in the first direction. The intermediate belt unit array includes a plurality of intermediate belt units arranged in a second direction perpendicular to the first direction in a top view. Each intermediate band cell includes a via structure configured to pass a reference voltage signal from a back side of the substrate to a front side of the substrate. The embodiment of the invention also provides a memory device and a forming method thereof.

The invention relates to an intermediate band gap photovoltaic cell and a preparation method thereof, and the photovoltaic cell is of a multi-layer structure and comprises an absorption layer, a collector electrode, an emitter electrode, a front window layer and a rear window layer. The absorption layer is an absorption layer with a middle band gap; the preparation method comprises the following steps: growing the absorption layer; when the absorption layer is grown, a middle band gap is formed in a doping or quantum dot mode. The absorption layer is simple in structure, reasonable in design and ingenious in conception, the (single-layer) absorption layer has more absorption edges due to introduction of the middle band gap, the absorption range can be widened, more photons can be absorbed, and energy can be converted more efficiently (heat loss is reduced).

The application discloses a remote sensing image product fusion method, system, device and storage medium, and the method comprises the steps of acquiring a remote sensing image panchromatic band and a remote sensing image multispectral band; constructing an intermediate band by using the multispectral band; synthesizing the intermediate band, the panchromatic band and the multispectral band into one image; performing image feature matching on each band in the multispectral band and the panchromatic band respectively with the intermediate band to obtain matched multispectral bands and a panchromatic band; taking the ratio of the matched panchromatic band and the intermediate band as an image space spectrum fusion product factor and multiplying the product factor with each band in the matched multispectral bands respectively to obtain fused multispectral bands; and merging the fused multispectral bands and storing the merged image. The application breaks through the band limitation of traditional fusion, and significantly improves the high-fidelity capability of multispectral image spectral information and the fine spatial geometric information of high-resolution images of the fusion result.

The embodiment of the invention provides a contra-rotating fan with a guide vane in the middle and an optimization design method of the contra-rotating fan, and belongs to the field of turbomachinery. The hub is arranged in the casing; an inlet guide vane, a first-stage rotor, a second-stage rotor and an outlet guide vane are sequentially arranged on the hub in the length direction of the hub. A middle guide vane is arranged at the position, between the first-stage rotor and the second-stage rotor, of the hub, and the vane type of the middle guide vane is roughly the same as that of the outlet guide vane. The axial distance between the front edge of the middle guide vane and the tail edge of the first-stage rotor is 30%-45% of the average axial chord length of the first-stage rotor; the axial distance between the tail edge of the middle guide vane and the front edge of the second-stage rotor is 30%-45% of the average axial chord length of the second-stage rotor. According to the contra-rotating fan with the guide vanes in the middle and the optimization design method of the contra-rotating fan, the stable working range and the flow margin of the contra-rotating fan can be widened while the high-pressure ratio characteristic of the contra-rotating fan is kept.

The purpose of the present invention is to solve the problem of an increase in size by integrating system configurations of two systems into one system in an intermediate band. The present invention is provided with a first unit, a second unit, and a single cable connecting the first unit and the second unit. The first unit includes N donor antennas from a first donor antenna to an Nth donor antenna that communicate with a base station, a first connection unit connected to an analog cable, and N donor-side frequency conversion units from a donor-side first frequency conversion unit to a donor-side Nth frequency conversion unit (where N is an integer of 2 or more). Each of the N donor-side frequency conversion units from the donor-side first frequency conversion unit to the donor-side Nth frequency conversion unit converts a signal of a frequency fRF received by a corresponding donor antenna among the N donor antennas from the first donor antenna to the Nth donor antenna into an intermediate signal by means of a local signal of each of the N donor-side frequency conversion units. The frequencies of the local signal and the intermediate signal differ from each other by the donor-side frequency conversion unit. The second unit is provided with: N service antennas from first to Nth service antennas that communicate with the communication terminal; the second connecting part is connected with the analog cable; and N service-side frequency conversion units from the service-side first frequency conversion unit to the service-side Nth frequency conversion unit. Each of the N service-side frequency conversion units from the service-side first frequency conversion unit to the service-side Nth frequency conversion unit converts a signal of a frequency fRF received by a corresponding service antenna among the N service antennas from the first service antenna to the Nth service antenna into an intermediate signal, which is an analog signal, by means of a local signal of each of the N service-side frequency conversion units. The frequencies of the local signal and the intermediate signal differ from each other for each service-side frequency conversion unit. Intermediate signals of the first to Nth intermediate signals are transmitted in an overlapping manner in one cable.