Suchergebnisse

Some Basic Concepts and Systems -- Jurisdiction -- Case Filing and Determination of the Adjudicatory Personnel -- Service of Court Documents -- Trial -- Evidence -- Class Action in China? — Representative Litigation -- Civil Public Interest Litigation -- Property Preservation and Act Preservation -- Enforcement -- Settlement and Mediation.

This open access book aims to provide an initial but comprehensive roadmap for the Chinese civil litigation system. It starts with some basic concepts of the Chinese judicial system (e.g., court system, case numbering, hierarchical trial system, etc.) and runs through the entire process and most aspects of civil litigation cases (e.g., jurisdiction, service of process, rules of evidence, enforcement, representative actions, etc.). The first target audience for this book is lawyers outside of mainland China. For professors and law students, this book also serves as a window into the Chinese judicial system in a short period of time. It is my hope that this book serves as a backdrop for additional observations of Chinese judicial practice, such as a review of recent cases. This is an open access book.

Ultrasound is widely used in industry and the agricultural, biomedical, military, and other fields. As key components in ultrasonic applications, the characteristic parameters of ultrasonic transducers fundamentally determine the performance of ultrasonic systems. High-frequency ultrasonic transducers are small in size and require high precision, which puts forward higher requirements for sensor design, material selection, and processing methods. In this paper, a three-dimensional model of a high-frequency piezoelectric micromachined ultrasonic transducer (PMUT) is established based on the finite element method (FEM). This 3D model consists of a substrate, a silicon device layer, and a molybdenum-aluminum nitride-molybdenum (Mo-AlN-Mo) sandwich piezoelectric layer. The effect of the shape of the transducer's vibrating membrane on the transmission performance was studied. Through a discussion of the parametric scanning of the key dimensions of the diaphragms of the three structures, it was concluded that the fundamental resonance frequency of the hexagonal diaphragm was higher than that of the circle and the square under the same size. Compared with the circular diaphragm, the sensitivity of the square diaphragm increased by 8.5%, and the sensitivity of the hexagonal diaphragm increased by 10.7%. The maximum emission sound-pressure level of the hexagonal diaphragm was 6.6 times higher than that of the circular diaphragm. The finite element results show that the hexagonal diaphragm design has great advantages for improving the transmission performance of the high-frequency PMUT.