Abstract: A printing device and the ribbon mounting mechanism thereof are disclosed. The ribbon mounting mechanism is used for mounting a first ribbon comprising a first core and a second ribbon comprising a second core having a diameter smaller than that of the first core. The ribbon mounting mechanism includes a first shaft supporting the first core of the first ribbon; a second shaft supporting the second core of the second ribbon, wherein the second shaft and the first shaft are concentrically disposed; a torque generator comprising a third shaft; a first gear set connecting the first shaft and the third shaft, and torque generated by the torque generator is transmitted to the first shaft through the first gear set; and a second gear set connecting the second shaft and the third shaft, and torque generated by the torque generator is transmitted to the second shaft through the second gear set.

Abstract: A semiconductor memory device and a manufacturing method thereof are provided in the present invention. An under-cut structure is formed at an edge of a bit line contact opening in the process of forming the bit line contact opening for avoiding short problems caused by alignment shifting, and the process window of the process of forming the bit line contact opening may be improved accordingly.

Abstract: A steel-structure building envelope capable of erecting a scaffold and a method for erecting the scaffold are disclosed. The scaffold is fastened to the steel-structure building envelope through two steps fastening means. A pre-embedded reinforcing steel bar is laid in each of RC slabs and extends out of the corresponding RC slab to be wound around the scaffold, serving as the first fastening means for fastening the scaffold. Locking parts are embedded into the corresponding RC slab at intervals. The transverse aluminum extrusion is disposed on an outside of the corresponding RC slab. The wall connecting rods each have a first end that passes through the transverse aluminum extrusion and is locked to the corresponding locking part and a second end configured to lock the scaffold, serving as a second fastening means for fastening the scaffold after the pre-embedded reinforcing steel bar is removed from the scaffold.

Abstract: A steel-structure building envelope includes a building body, floor slabs, and external walls. The building body has H beams and decks. The decks are assembled onto the H beams. The floor slabs have RC slabs laid on the decks. The external walls each have an RC curb formed on the RC slab by means of casting, two steel C profiles, one of which is installed on the RC curb with an opening thereof facing upward, and the other of which is mounted on the deck with an opening thereof facing downward; and an outer wall panel and an inner wall panel, attached to opposite sides of the RC curb and the two steel C profiles, respectively, so that a hollow space is formed between the outer wall panel and the inner wall panel. Thereby the external walls have a two-layer structure and are affixed directly to the floor slabs.

Abstract: A printing device and the ribbon mounting mechanism thereof are disclosed. The ribbon mounting mechanism is used for mounting a first ribbon comprising a first core and a second ribbon comprising a second core having a diameter smaller than that of the first core. The ribbon mounting mechanism includes a first shaft supporting the first core of the first ribbon; a second shaft supporting the second core of the second ribbon, wherein the second shaft and the first shaft are concentrically disposed; a torque generator comprising a third shaft; a first gear set connecting the first shaft and the third shaft, and torque generated by the torque generator is transmitted to the first shaft through the first gear set; and a second gear set connecting the second shaft and the third shaft, and torque generated by the torque generator is transmitted to the second shaft through the second gear set.

Abstract: A bending section and insertion tube connecting structure, and an endoscope. The bending section and insertion tube connecting structure comprises: a bending section, provided with first clamping portions in the circumferential direction; a connecting tube, connected to the bending section in a sleeving way and provided with second clamping portions in the circumferential direction, the first clamping portions being snap-fitted with the second clamping portions, such that the bending section is connected to the connecting tube; and an insertion tube, bonded with the connecting tube.

Abstract: An endoscope button mounting structure and an endoscope. The endoscope button mounting structure comprises: a circuit board support, a circuit board having a mounting surface and a mounting side face, the mounting surface being provided with a circuit board mounting part, and the mounting side face being provided with a first snap-fit structure; a button support, the button support comprising an elastic portion and a mounting portion which are connected to each other, the elastic portion being arranged corresponding to the circuit board mounting part, the mounting portion being provided with a second snap-fit structure, and the first snap-fit structure being snap-fitted with the second snap-fit structure to maintain a distance between the elastic portion and the circuit board mounting part; and a button body, the button body being arranged on the elastic portion.

Abstract: An endoscope, comprising a knob apparatus, a braking apparatus and a flexible endoscope insertion tube. The knob apparatus comprises a first wire guide wheel and a second wire guide wheel that are rotatably mounted inside a housing, as well as a first knob and a second knob that are located outside the housing. A first through hole penetrates through the first wire guide wheel; the second wire guide wheel passes through the first through hole to extend out of the housing; the first knob is sleeved on the first wire guide wheel; and the second knob is arranged on the first knob in a stacking manner and is sleeved on the second wire guide wheel. The braking apparatus comprises a first braking assembly and a second braking assembly. The first braking assembly is arranged between the first knob and the housing.

Abstract: Disclosed are an endoscope knob device, an endoscope handle, and an endoscope. The endoscope knob device includes a first cable pulley defining a first perforation, a first matching portion, and a first latching portion; a second cable pulley defining a second matching portion and a second latching portion; and a first knob and a second knob which are sleeved over the first cable pulley and the second cable pulley, respectively. The first knob includes a third matching portion and a third latching portion that matches with the first latching portion. The third matching portion cooperates with the first matching portion, so that the first knob drives the first cable pulley to rotate. The second knob includes a fourth matching portion and a fourth latching portion. The fourth matching portion cooperates with the second matching portion, so that the second knob drives the second cable pulley to rotate.

Abstract: Disclosed are an endoscope wire pulling wheel, an endoscope handle, and an endoscope. During a winding process, both ends of a pull wire are respectively distributed at two opposite sides of a winding part; then, the two ends of the pull wire are respectively correspondingly wound in the two winding grooves in opposite directions. Since the two wire winding grooves are provided with wire penetrating holes communicated with a cavity, after the pull wire is wound, the ends of the pull wire can penetrate through one wire penetrating hole to the cavity, and then penetrate through the other wire penetrating hole from the cavity; and the penetration is repeated such that the ends of the pull wire can be stably fixed on the winding part.

Abstract: Disclosed are a tip and continuum body connecting structure and an endoscope. The tip and continuum body connecting structure comprises: a tip, which is provided with first snap-fit portions, the first snap-fit portions being located in the circumferential direction of the tip; and a continuum body, which is sleeved with the tip, the continuum body being provided with second snap-fit portions, the second snap-fit portions being located in the circumferential direction of the continuum body, and the first snap-fit portions being snap-fitted with the second snap-fit portions, such that the tip is connected to the continuum body.

Abstract: An endoscopic bending section and an endoscope. The endoscopic bending section comprises a wire winding portion, the wire winding portion being provided with a mounting cavity, and a first traction wire hole, a second traction wire hole, a third traction wire hole and a fourth traction wire hole which are arranged around the mounting cavity at intervals, wherein the mounting cavity, the first traction wire hole, the second traction wire hole, the third traction wire hole and the fourth traction wire hole all extend in an axial direction of the wire winding portion; and the wire winding portion is provided with at least three wire-passage holes arranged at intervals in a circumferential direction of the wire winding portion, the wire-passage holes separately being in communication with the mounting cavity.

Abstract: Disclosed are an endoscope knob brake device, an endoscope handle, and an endoscope. The endoscope knob brake device includes a fixed frame, brake members and a brake knob. The fixed frame includes an operating cavity configured for a knob mechanism to pass through. At least two sliding grooves are arranged at intervals around the operating cavity. The brake members are slidably installed in the sliding grooves in a one-to-one correspondence. The brake knob is sleeved over the fixed frame. At least two pushing portions are disposed at intervals on an inner wall of the brake knob. When the brake knob is rotated to a preset angle, the pushing portions push, in a one-to-one correspondence, the brake members to move toward the operating cavity to hold the knob mechanism tightly.

Abstract: In some implementations, a server device can generate configuration data for an application based on user engagement segments associated with a user of the application. For example, a server device can receive information identifying user engagement segments associated with a particular user. When the server device receives a request for configuration data for the application that identifies the particular user, the server device can obtain the engagement segment identifiers associated with the particular user. The server device can use the engagement segment identifiers to obtain segment configuration data for each engagement segment identifier, combine the segment configuration data into a combined configuration, and send the combined configuration to the application on the user device. The application can then determine what content to present and how to present the content on the user device based on the combined configuration data.

Abstract: A steel-structure building envelope includes a building body, floor slabs, and external walls. The building body has H beams and decks. The decks are assembled onto the H beams. The floor slabs have RC slabs laid on the decks. The external walls each have an RC curb formed on the RC slab by means of casting, two steel C profiles, one of which is installed on the RC curb with an opening thereof facing upward, and the other of which is mounted on the deck with an opening thereof facing downward; and an outer wall panel and an inner wall panel, attached to opposite sides of the RC curb and the two steel C profiles, respectively, so that a hollow space is formed between the outer wall panel and the inner wall panel. Thereby the external walls have a two-layer structure and are affixed directly to the floor slabs.

Abstract: The system includes: an ultrasound imaging probe located in the center of the ultrasound probe device; an ultrasound stimulation probe located around the center of the ultrasound probe device, and two independent piezoelectric elements with a slight frequency difference can focused ultrasound and applied to the same target area, and fixed on a specific position of the abdomen with a touch fastener to generate an acoustic field that changes the intensity of the acoustic field with time: Stimulate the area of the inflammatory bowel in the abdomen through this acoustic field: to suppress the inflammatory bowel disease and the brain inflammation through the gut-brain axis.