This paper proposes a Negative-buoyancy Quad Tilt-rotor Autonomous Underwater Vehicle (NQTAUV), for which an attitude-tracking controller is designed for the hover and transition modes based on a disturbance-rejection control scheme.First, the structure of NQTAUV is illustrated, a mathematical model based on the Rodrigues parameters is proposed, an
Background: There is a slow but steady increase in inhalant use in India among adolescent age group.There is a very few studies regarding inhalant use disorder in India.No study has been reported from West Bengal.Aims and Objectives: In our study, we aimed to study the sociodemographic and clinical profile of patients using inhalants.Materials and
Abstract Nonreciprocity is important in both optical information processing and topological photonics studies.Conventional principles for realizing nonreciprocity rely on Collagen magnetic fields, spatiotemporal modulation, or nonlinearity.Here we propose a generic principle for generating nonreciprocity by taking advantage of energy loss, which is
Rachel K Voss,1 Tessa N Woods,1 Kate D Cromwell,1 Kelly C Nelson,2 Janice N Cormier1 1Department of Surgical Oncology, 2Department of Dermatology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA Abstract: Patients with thin, low-risk melanomas have an excellent long-term prognosis and higher quality of life than those who are di