41results about How to "Avoid bringing" patented technology

The invention provides a project recommendation method and device. According to recorded grading objects and scores thereof to projects, the score mean value of the grading objects to the projects and the types of all projects are determined firstly; then the score mean value of the grading objects to the project types is counted; first related objects with similar type preferences are determined from target objects; then second related objects with similar project preferences are found out from the first related objects; the eligible projects are extracted from the projects which are not graded by the target objects and recommended to the target objects. According to the embodiment of the invention, users with related preferred projects and types are selected out and invalid information not interested by the users are removed by using the interest degrees of the users to different types of projects; all effective information is used when the similarity among the users is calculated, so that the similarity calculation is more accurate, the accuracy of calculating the similarity among the users can be effectively enhanced, and the recommendation quality of a recommendation system is effectively improved.

The invention provides an intelligent reminding method, wearable equipment and a storage medium. The intelligent reminding method comprises the steps of collecting physiological characteristic valuesof a wearer of the wearable equipment; judging whether the physiological characteristic value exceeds a preset characteristic value range or not; if the physiological characteristic value exceeds a preset characteristic value range, judging whether the current environment meets a reminding condition or not; and if the current environment meets the reminding condition, sending reminding informationto a specified terminal. According to the method and the equipment, when it is detected that the body of the wearer of the wearable equipment is abnormal, whether the designated contact person is informed or not is judged according to the surrounding environment, so that information sending can be reduced, and unnecessary information is prevented from being brought to family members of the wearer.

The invention belongs to the technical field of photoelectrochemical cell semiconductor electrodes, and discloses a bismuth vanadate electrode rich in surface oxygen vacancies and its preparation method and application. It is obtained by etching modification; firstly, bismuth vanadate particles are grown on a conductive substrate by the method of metal organic decomposition, and then immersed in an alkaline buffer solution containing sulfite, while applying a certain time and a certain wavelength and intensity The whole electrode can be assembled into a photoelectrochemical cell for the photoelectrochemical cell photolysis of water to produce hydrogen. The invention introduces oxygen vacancies at the surface of the bismuth vanadate electrode, effectively increasing the charge separation efficiency of the solid-liquid interface, thereby improving the photoelectric conversion efficiency of the photoelectrochemical cell, and the operation is simple, and the efficiency of introducing oxygen vacancies is high. It requires the help of vacuum equipment, and the operation cost is extremely low, which is conducive to large-scale production.

The invention relates to an operating room air purifying system. An air supplying motor array is used for accelerating supplied fresh air by a first air supplying component. The accelerated fresh air passes through a purifying component and enters an operating room. Due to the fact that the fresh air is accelerated by the air supplying motor array, the power and the size of a fresh air motor are reduced. Meanwhile, the purifying component is tightly attached to the lower side of the air supplying motor array, so that the whole system is small in occupied space and manufacturing cost is correspondingly reduced. Each motor of the air supplying motor array is controlled to switch on and off by a main control unit, so that part of motors can be kept switched on by the air supplying motor array according to use conditions, and electric energy consumed by the purifying system is saved. The motor which is selected to be switched on can be determined corresponding to one air outlet, so that wind energy can be effectively used and the energy consumption rate of the whole system is reduced. Each component of the operating room air purifying system is an independent component, so that power can be supplied independently by different external power sources. Therefore, according to the specific working conditions, certain components can be switched on by the purifying system and electric energy can be further saved.

The invention discloses a low-cost method for synthesizing ARK-Cu, which uses a liquid-phase synthesis method to combine Cbz-Ala-OH and H-Arg(NO 2 )‑OH to form a dipeptide Cbz‑Ala‑Arg(NO 2 )‑OH, and then react with Lys(Cbz)‑OH to generate fully protected tripeptide Cbz‑Ala‑Arg(NO 2 )‑Lys(Cbz)‑OH, followed by hydrogen / palladium carbon deprotection to generate H‑Ala‑Arg‑Lys‑OH, and finally in water with copper acetate to generate ARK‑Cu. The synthetic method of the present invention is simple, does not need column chromatographic purification, just can obtain the Cbz-Ala-Arg (NO 2 )‑Lys(Cbz)‑OH, with low synthesis cost, can be used to synthesize ARK‑Cu in large quantities.

The invention provides an epitaxial device and an epitaxial layer measuring method in an epitaxial process. The device comprises a reaction chamber; an observation window arranged in the reaction chamber; a tray arranged inside the reaction chamber, wherein the tray is carried with wafers; and an optical fiber type Fourier infrared spectrum analyzer, which has an optical fiber. One end of the optical fiber is corresponding to the observation window; the optical fiber is used for emitting infrared light rays, and the infrared light rays are irradiated to the wafers through the observation window; reflected light reflected by the wafers is received by the observation window; and the optical fiber type Fourier infrared spectrum analyzer is used for detecting the thickness of an epitaxial layer of each wafer according to the reflected light. The epitaxial device can carry out real-time guidance on the epitaxial process, so that the epitaxial process is allowed to be more controllable, qualified rate of a product produced in the epitaxial process is greatly improved, waste product due to inappropriate process parameter selection is effectively prevented, and meanwhile, utilization rate of raw materials in the epitaxial process and output of the epitaxial device are improved favorably.

The invention relates to an automatic flushing device for a construction site engineering vehicle. The automatic flushing device comprises a flushing platform, an air drying device and a PLC control system; the flushing platform comprises a bottom flushing device and side flushing devices, the bottom flushing device comprises a water collecting basin, a vehicle carrying plate, a plurality rows of first water delivery pipelines and first high-pressure nozzles, and the vehicle carrying plate is provided with a first pressure sensor and a plurality of water permeating holes; each side flushing device comprises a side fixing plate, a plurality of second water delivery pipelines and second high-pressure nozzles; the first water delivery pipelines and the second water delivery pipelines are both communicated to a high-pressure water pump; the air drying device comprises an air drying bearing plate with a plurality of air drying holes, an air compressor and an air storage tank, and the air drying bearing plate is provided with a second pressure sensor; the first pressure sensor and the second pressure sensor are both connected to the input end of the PLC control system, and the high-pressure water pump and the air compressor are both connected to the output end of the PLC control system. The automatic flushing device is convenient to install, high in water utilization rate and good in flushing effect.