Abstract: The light emitting device includes a light emitting diode and an optical lens, the optical lens includes a light incidence surface and a light exit surface, the light incidence surface includes a first light incidence surface and a second light incidence surface, herein the ratios of the minimum ones to the maximum ones of the distances between respective points, on the first light incidence surface or the second light incidence surface, and the center of the light emission surface respectively belongs to [0.5, 0.7] or [0.683, 0.695]; and the convex surface includes a first light exit surface and a second light exit surface, herein the ratios of the minimum ones to the maximum ones of the distances between respective points, on the first light exit surface or the second light exit surface, and the center of the light emission surface respectively belongs to [0.771, 0.913], or [0.883, 0.921].

Abstract: Provided are a cerium-zirconium composite oxide, a preparation method therefor and application of a catalyst. The cerium-zirconium composite oxide has a composite phase structure, and comprises a cerium oxide phase and a cerium-zirconium solid solution phase, or consists of two or more cerium-zirconium solid solution phases with different crystal structures and different chemical compositions, wherein the chemical formula of the cerium-zirconium solid solution phase is CexZr1-x-yMyO2, where M is at least one selected from the group consisting of a rare earth element other than cerium, a transition metal element and an alkaline earth metal element, x is 15-85 mol %, and y is 0-20 mol %.

Abstract: The present invention discloses a pneumatic sensor, having an air intake and an air outlet. The pneumatic sensor includes a first triboelectric component, a shell, a second triboelectric component and a third triboelectric component, wherein the shell has a hollow structure in a preset shape to form an airflow channel, and the airflow channel is communicated with the air intake and the air outlet, thus allowing the airflow to enter the airflow channel from the air intake and flow out from the air outlet; the first triboelectric component is arranged in the airflow channel, and the second and the third triboelectric components are arranged at positions capable of contacting with the first triboelectric component; and the second and the third triboelectric components include electric signal output terminals of the pneumatic sensor.

Abstract: The light emitting device includes a light emitting diode and an optical lens, the optical lens includes a light incidence surface and a light exit surface, the light incidence surface includes a first light incidence surface and a second light incidence surface, herein the ratios of the minimum ones to the maximum ones of the distances between respective points, on the first light incidence surface or the second light incidence surface, and the center of the light emission surface respectively belongs to [0.5, 0.7] or [0.683, 0.695]; and the convex surface includes a first light exit surface and a second light exit surface, herein the ratios of the minimum ones to the maximum ones of the distances between respective points, on the first light exit surface or the second light exit surface, and the center of the light emission surface respectively belongs to [0.771, 0.913], or [0.883, 0.921].

Abstract: A system for scheduling mold manufacturing includes a number of user computers (1) connected with a server (3) by a network (2), a standard parameter database (5), and a task scheduling database (6). Each user computer includes a standard parameter setting module for setting standard parameters; a task scheduling module for analyzing and calculating a workload of each manufacturing unit and machine, generating a workload list, scheduling working procedures of mold manufacturing, simulating scheduling results, generating a schedule, and transmitting the schedule; a task tracking and feedback module for tracking and sending out feedback of current process and workloads of manufacturing units and machines, generating a work process list, and dynamically updating the workload list. A related method is also disclosed.

Abstract: A system for scheduling mold manufacturing includes a number of user computers (1) connected with a server (3) by a network (2), a standard parameter database (5), and a task scheduling database (6). Each user computer includes a standard parameter setting module for setting standard parameters; a task scheduling module for analyzing and calculating a workload of each manufacturing unit and machine, generating a workload list, scheduling working procedures of mold manufacturing, simulating scheduling results, generating a schedule, and transmitting the schedule; a task tracking and feedback module for tracking and sending out feedback of current process and workloads of manufacturing units and machines, generating a work process list, and dynamically updating the workload list. A related method is also disclosed.