6results about How to "Change sensitivity" patented technology

The invention discloses a fiber-type sensor with adjustable strain sensitivity and sensing range and a preparation method thereof. The fiber-type sensor realizes strain resistance response of basic sensitivity through bulk resistance change caused by cross sectional area change of a conductive material layer when the fiber-type sensor is stretched and an expansion effect of microcracks on the surface of the conductive material layer. The preparation method of the fiber type sensor comprises the following steps: extruding a thermoplastic polyurethane organic solution into a water bath by using an injector to obtain a phase separation porous core fiber 1; immersing the core fiber into an organic solution containing a thermoplastic polyurethane and carbon nanotube mixture, taking out the core fiber, and transferring the core fiber to a non-woven fabric substrate; the substrate and the coated core fiber on the substrate are integrally placed in a water bath and then taken out, and the sensing fiber is obtained after the fiber is stripped; a metal foil packaging layer or a polymer packaging layer is used for wrapping fibers in a segmented mode, and the fibers are pre-stretched to form the fiber type sensor with sensing efficiency.

The invention provides a width adjusting assembly for a handle and a walking aid, the width adjusting assembly comprises a motor, a first gear mechanism, two worm and gear mechanisms and two second gear mechanisms, the first gear mechanism is connected with the motor, and the left-right width of the first gear mechanism is adjustable; the two handles are respectively connected with one second gear mechanism; and the worm and gear mechanism is used for connecting the first gear mechanism and the second gear mechanism. According to the width adjusting assembly for the handle, the width can be continuously changed; and during use, self-locking can be realized.

The invention relates to an application of suramine in promoting tumor radiotherapy sensitization. The invention fully proves that suramin can effectively prepare tumor cells in a state highly sensitive to ferroptosis through a novel metabolic reprogramming mechanism of inhibiting IPPK, reducing IP6 and releasing Fe < 2 + > chelated with an iron pool in cells, thereby creating necessary biochemical conditions for ferroptosis; and the sensitivity of cells to ferroptosis induced stimulation is fundamentally changed. Therefore, the compound can be used as a ferroptosis inducer and a potent sensitizer for radiotherapy at the same time. The discovery not only provides a new combined strategy for overcoming tumor treatment resistance, but also perfectly explains the transformation medicine concept of new use of old medicines, and provides a new active ingredient for human tumor treatment, thereby providing a new direction for subsequent medicine research and development, clinical treatment and the like, and having extremely high social value and market application prospects.

The present invention discloses a three-dimensional antenna radio frequency tag and its manufacturing process in the field of radio frequency tag technology. The radio frequency tag includes a radio frequency chip connecting piece assembly, a coating layer and an insulating plate. The coating layer is coated on the surface of the insulating plate, and a gap is provided at the connection between the two ends of the coating layer to form an opening; the radio frequency chip connecting piece assembly is arranged on the upper side of the coating layer, the position of the radio frequency chip in the radio frequency chip connecting piece assembly corresponds to the position of the opening, and the two ends of the radio frequency chip connecting piece assembly are respectively connected to the coating layers on the left and right sides of the opening; the process includes the steps of preparing the radio frequency chip connecting piece assembly, preparing materials, bonding the insulating plate to the coating layer, folding the coating layer, positioning and cutting, dipping in paint, and pasting product labels. The present invention can obtain the best radio frequency performance, high read and write sensitivity, wide range, and is suitable for processing in automated production lines, with high production efficiency and low cost, which is conducive to large-scale production and promotion, and promotes the informatization of the manufacturing industry.

The embodiments of the present invention disclose a camera lens shift detection method, device, electronic device and storage medium. The method comprises: obtaining a camera screen image captured by the camera lens to be detected, and dividing the obtained camera screen image into at least two sub-region images; encoding the at least two sub-region images and extracting neural network features to obtain encoding results and feature extraction results; determining whether the camera lens to be detected is shifted based on the encoding result and feature extraction result of the current camera screen image and the encoding result and feature extraction result of the previous camera screen image. The technical solution of the embodiment of the present invention makes up for the shortcomings of manually setting features, improves the accuracy of judgment, reduces the false alarm rate, and can set different image extraction time intervals, sub-region image sizes and distance thresholds according to the needs of different scenes, thereby improving the accuracy of camera lens shift detection.

The utility model belongs to the technical field of belt conveyor, concretely is a kind of mine double drum temperature control device, including two groups of temperature control unit respectively corresponding to two drums, temperature control unit includes spray pipeline, fan-shaped nozzle, infrared temperature sensor and electromagnetic ball valve, spray pipeline is set in the side of drum and is parallel with the setting of drum, fan-shaped nozzle is provided with multiple on spray pipeline, infrared temperature sensor is set in the side of drum, electromagnetic ball valve is set in the water inlet end of spray pipeline, for control spray pipeline opening and closing, and the electromagnetic ball valve in two groups of temperature control unit, infrared temperature sensor are connected with PLC control system.This utility model can realize the automatic alarm of drum overtemperature and the automatic start spray cooling function after overtemperature, without manual intervention, system response is sensitive, improve the service life of drum and coal mine equipment, improve the safety of coal mine production operation.