Abstract: The present disclosure relates to an information presentation method and apparatus, an electronic device and a storage medium. The method includes: presenting a target page, wherein the target page includes an object detail presentation area and a candidate object set presentation area, and the candidate object set presentation area is used for presenting first abstract information of each candidate object in a candidate object set; and in response to a selection operation for one piece of first abstract information in the candidate object set presentation area, presenting detail information of a first target object in the object detail presentation area, wherein the first target object is a candidate object corresponding to the selected first abstract information. Therefore, the operation steps of browsing the detail information of different objects can be simplified, and the operation time consumption can be shortened.

Abstract: A Kriging model-based optimal design method and device for a bulk acoustic resonator, and a storage medium are provided. The Kriging model-based optimal design method includes: determining a structure and a material of a resonator, establishing a corresponding MASON model, and performing one-dimensional simulation on the MASON model to obtain a simulation result; determining, based on the simulation result, a design variable for optimizing the resonator, and constructing a Kriging surrogate model; determining an optimization goal, constructing an optimization problem model based on the optimization goal and the Kriging surrogate model, and solving the optimization problem model to obtain an optimal solution; and reducing upper and lower limits of the design variable to improve optimization accuracy.

Abstract: An LED lamp includes: a heat sink; a light-emitting module positioned on the heat sink, the light-emitting module including an LED unit positioned on the heat sink, a reflection cup, and a first diffuser covering the reflection cup, the reflection cup encircling the LED unit and defining at least one first ventilation hole; a heat-conducting support positioned on the heat sink and encircling the reflection cup, the heat-conducting support defining at least one second ventilation hole; and a second diffuser secured to and clamped by the heat-conducting support.

Abstract: An LED lamp includes: a heat sink; a light-emitting module positioned on the heat sink, the light-emitting module including an LED unit positioned on the heat sink, a reflection cup, and a first diffuser covering the reflection cup, the reflection cup encircling the LED unit and defining at least one first ventilation hole; a heat-conducting support positioned on the heat sink and encircling the reflection cup, the heat-conducting support defining at least one second ventilation hole; and a second diffuser secured to and clamped by the heat-conducting support.