A Development Study of a New Bi-directional Solenoid Actuator for Active Locomotion Capsule Robots

A new bi-directional, simple-structured solenoid actuator for active locomotion capsule robots (CRs) is investigated in this paper. This active actuator consists of two permanent magnets (PMs) attached to the two ends of the capsule body and a vibration inner mass formed by a solenoidal coil with an iron core. The proposed CR, designed as a sealed structure without external legs, wheels, or caterpillars, can achieve both forward and backward motions driven by the internal collision force. This new design concept has been successfully confirmed on a capsule prototype. The measured displacements show that its movement can be easily controlled by changing the supplied current amplitude and frequency of the solenoid actuator. To validate the new bi-directional CR prototype, various experimental as well as finite element analysis results are presented in this paper

Based On K-means Disease Diagnosis Research

For the diagnosis of diseases, modern medicine usually searches for diseases in the disease database to find the type of disease that matches them. The diagnosis of diseases is the first step in treatment. Then the classification of diseases is the basis of disease diagnosis. Disease classification plays an extremely important role in the scientific management of medical records and the development of modern medicine, and is a bridge connecting modern medical science. Therefore, the classification of diseases is very necessary. Based on this, this article establishes a K-means model for disease diagnosis, and combines the internationally unified disease type code ICD statistics table to classify the sample data set into infectious and parasitic diseases, tumors, diabetes and circulatory diseases The training is perfect, and finally the diagnosis classification of the disease is realized

Multi-Path Relay Selection Algorithm Based on the Broadcast TV

AbstractThis paper presents a relay selection method for Broadcast TV services. This method get through the node's time-delay and power information, obtain the value of the system interrupt as to be a decision threshold, then chose the relay node. At the same time this paper proposes an optimal relay selection strategy which can minimize the system interrupt probability combination with power distribution——Multi-Path Relay Routing Protocol. This protocol can dynamically change the appropriate route according to the shifty network. Simulation results show that the protocol can extend the coverage area, reducing time-delay and increase system throughput, improve system spectral efficiency, and enhance the Qos of the Broadcast TV service

A Phenomenology Study of the Lived Experiences of Chinese International Students in the US During the COVID-19 Pandemic

This phenomenological study investigates the lived experiences of Chinese international students during the initial outbreak of the COVID-19 pandemic. It aims to delve into how these individuals articulate their experiences during the pandemic, with a particular focus on how their geographical location influenced their experiences. To achieve this, the study employs an innovative approach, integrating a phenomenological method with comparative analysis to elucidate the similarities and differences between students who remained in the US and those who returned to China. The analysis identified four principal themes among students in the US: 1) Online Learning Challenges, (2) Social Life Adaptation, (3) Self-Coping and Entertainment, and (4) Support and Resource Needs. Conversely, three themes emerged for students in China: (1) Online Learning Challenges, (2) Social Life Adaptation, and (3) Opportunities for Development. While certain experiences, such as (1) Online Learning Challenges, (2) Impact on Academic Discipline, (3) Technological Challenges, (4) Communication Challenges within School, and (5) Reflections on Decision, were common across both groups, distinct differences were observed in several areas, including (1) Social Life and Interaction, (2) Self-Care and Entertainment, (3) Racism and Safety Concerns, and (4) Reflection and Personal Growth. This study pioneers in exploring Chinese international students’ experiences across different locations, offering insights for educators to enhance teaching and support strategies. As online learning solidifies its role, this study’s findings can equip future students with essential guidelines for navigating university life in the US, aiming for better academic and personal outcomes