6results 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 provides a flat tube bending device. The flat tube bending device comprises a positioning handle, the pipe bending disc is arranged on the positioning handle, the peripheral wall of the pipe bending disc forms a pipe bending wall, and the pipe bending wall is in a circular arc shape; the operating handle is rotatably arranged on the peripheral side of the pipe bending disc; a bending part is formed on the side, facing the bent pipe wall, of the operating handle, a bending space is formed between the bending part and the bent pipe wall, and the flat pipe can pass through the bending space; one end of the distance adjusting assembly is rotationally connected with the pipe bending disc, and the other end of the distance adjusting assembly is connected with the operating handle; the operating handle can drive the distance adjusting assembly to rotate relative to the pipe bending disc, so that the bending part rotates around the pipe bending wall, and the flat pipe in the bending space is bent; the distance adjusting assembly is of a telescopic structure. When the length of the distance adjusting assembly is increased, the distance between the bent pipe wall and the bent part can be increased, so that the width of the bent space is increased; when the length of the distance adjusting assembly is shortened, the distance between the pipe bending wall and the bending part can be reduced, so that the width of the bending space is reduced.

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.

The utility model discloses a combined desktop storage device which comprises a first storage assembly and a second storage assembly, the first storage assembly and the second storage assembly are connected in a spliced mode, the first storage assembly comprises at least one of a pen container, a pen rack and a pen clip, and the second storage assembly comprises a showing stand and / or a storage tray. Different users can freely combine to obtain the table top storage device suitable for themselves according to table top use requirements of themselves, and compared with fixed table top storage, the table top storage device is higher in flexibility, convenient to disassemble, capable of reducing dead angles of the device and easier to clean.