4results about How to "Flexible size control" patented technology

The present disclosure provides a piezoelectric ceramic driving array and a surface shape adjustment method. The piezoelectric ceramic driving array comprises a bottom electrode layer, a piezoelectric ceramic array and an insulating layer which are sequentially stacked, the bottom electrode layer comprises arrayed bottom electrodes; the piezoelectric ceramic array comprises at least one layer of piezoelectric ceramic array units, and the plurality of layers of piezoelectric ceramic array units are stacked, each layer of piezoelectric ceramic array units comprises a positive electrode layer and a negative electrode layer which are stacked; the positive electrode layer comprises a first piezoelectric ceramic sheet and a positive electrode array formed on the surface of the first piezoelectric ceramic sheet, and the negative electrode layer comprises a second piezoelectric ceramic sheet and a negative electrode array formed on the surface of the second piezoelectric ceramic sheet; each positive electrode on the same positive electrode layer is independent of each other, and the positive electrodes at the same position on different positive electrode layers are connected to the bottom electrode at the corresponding position after being adjacent; each negative electrode on the same negative electrode layer is connected to at least one adjacent negative electrode, and the negative electrodes at the same position on the edges of different negative electrode layers are connected to an external circuit after being adjacent.

This invention provides a method for constructing ordered porous organic crystalline materials based on templates. This method utilizes supramolecular interactions such as hydrogen bonding, halogen bonding, and π-π interactions to successfully construct ordered porous structures, particularly ordered macroporous structures. This method innovatively solves the problem of achieving large-sized (diameter greater than or equal to 50 nanometers) ordered permanent pores in traditional (hydrogen-bonded) organic crystalline materials, while ensuring the material's excellent stability and ordered macroporous properties. The ordered porous (especially ordered macroporous) (hydrogen-bonded) organic crystalline materials constructed by this invention, due to their unique structure and properties, are expected to show broad application prospects in catalysis, biomedicine, and other fields.

The application provides a non-contact channel device suitable for hysteroscopy diagnosis and treatment, which comprises a sealed cylinder with open ends, a cover is arranged at the opening of one end of the sealed cylinder, the cover is detachably arranged, a filter assembly is arranged in the sealed cylinder, a drainage pipe is arranged on the side surface of the sealed cylinder and communicates with the inner cavity of the sealed cylinder, the drainage pipe is located between the cover and the filter assembly, and a first punch hole and a second punch hole are arranged on the side surface of the cover. The non-contact channel device suitable for hysteroscopy diagnosis and treatment has good sealing and isolation effects in the use process, can avoid liquid spattering and large outflow of the cervical orifice in the diagnosis and treatment process, can establish a channel from the vaginal orifice to the cervix, most patients do not need to use a vaginal dilator and a cervical clamp, tissue trauma is reduced, the device is convenient for collecting samples and avoiding loss, and the clinical diagnosis accuracy is improved.

The invention discloses a nanometer eutectic precipitate reinforced nickel-based alloy coating and a preparation method of the nanometer eutectic precipitate reinforced nickel-based alloy coating, and belongs to the technical field of component design and structure regulation and control of laser cladding nickel-based alloy materials. A metallurgical environment beneficial to WC dissolution and carbon activation is constructed in a laser molten pool, so that WC does not exist in a final reinforced particle form any more, but participates in an in-situ reaction as a carbon source and a tungsten source, and fine and dispersed W5 (Si, B) 3 and Mo2C nano eutectic precipitates with good interface compatibility with a nickel-based matrix are synchronously generated; and therefore, active regulation and control on the size, distribution and interface structure of the carbide are realized from the aspect of a reinforced phase forming mechanism, and the problems of weak interface bonding and non-uniform structure caused by traditional additional ceramic particles are fundamentally avoided.