In this study, we present a new species of freshwater mussel Dab Tools in the genus Postolata Dai et al., 2023, from Guangxi Province, China, by integrating morphological, anatomical, and molecular data.Postolata longjiangensis Liu & Wu, sp.nov.is distinguished from its congener (i.e., Postolata guangxiensis) by its shell shape, beak positi
Gradient-Based Aero-Stealth Optimization of a Simplified Aircraft
Modern fighter aircraft increasingly need to Topicals conjugate aerodynamic performance and low observability.In this paper, we showcase a methodology for a gradient-based bidisciplinary aero-stealth optimization.The shape of the aircraft is parameterized with the help of a CAD modeler, and we optimize it with the SLSQP algorithm.The drag, computed
Estimating the Cost of Care for Emergency Department Syncope Patients: Comparison of Three Models
Introduction: We sought to compare three hospital cost-estimation models for patients undergoing evaluation for unexplained syncope using hospital cost data.Developing such a model would allow researchers to assess the value of novel clinical algorithms for syncope management.Methods: We collected complete health services data, including dispositio
Design and Experiment of a Clamping-Drive Alternating Operation Piezoelectric Actuator
In recent years, piezoelectric actuators, represented by inertial and inchworm actuators, have been widely applied because of their high accuracy and excellent responsiveness.Despite the development of various piezoelectric actuators, there remain some flaws in this technology.The sticking point is that the piezoelectric actuators based on the fric