A Power Line Inspector Device

The goal of this project is to create a functional power line inspection device which could replace the old inspection method of using helicopters. This microchip based robotic device is able to ride along a conductor and send video feed, encoder readouts, and temperature measurements to the user. The user operating system consists of an LCD screen, two potentiometers for motor control, and a screen to display video feed. Achieved specifications include a battery lifetime of 1 hour and 45 minutes, distance measurements within 1 inch, and temperature accuracy within 2 °C. This thesis includes a brief discussion on previous methods and robots, theory of operation, design summaries, and a compilation of the final results

Decay and Fission Hindrance of Two- and Four-Quasiparticle K Isomers in (254)Rf

Two isomers decaying by electromagnetic transitions with half-lives of 4.7(1.1) and 247(73)μs have been discovered in the heavy Rf254 nucleus. The observation of the shorter-lived isomer was made possible by a novel application of a digital data acquisition system. The isomers were interpreted as the Kπ=8-, ν2(7/2+[624],9/2-[734]) two-quasineutron and the Kπ=16+, 8-ν2(7/2+[624],9/2-[734])⊗ - 8-π2(7/2-[514],9/2+[624]) four-quasiparticle configurations, respectively. Surprisingly, the lifetime of the two-quasiparticle isomer is more than 4 orders of magnitude shorter than what has been observed for analogous isomers in the lighter N=150 isotones. The four-quasiparticle isomer is longer lived than the Rf254 ground state that decays exclusively by spontaneous fission with a half-life of 23.2(1.1)μs. The absence of sizable fission branches from either of the isomers implies unprecedented fission hindrance relative to the ground state

Patients\u27 perceptions with musculoskeletal disorders regarding their experience with healthcare providers and health services: an overview of reviews

Objectives: This overview of reviews aimed to identify (1) aspects of the patient experience when seeking care for musculoskeletal disorders from healthcare providers and the healthcare system, and (2) which mechanisms are used to measure aspects of the patient experience. Data sources: Four databases were searched from inception to December 20th, 2019. Review methods: Systematic or scoping reviews examining patient experience in seeking care for musculoskeletal from healthcare providers and the healthcare system were included. Independent authors screened and selected studies, extracted data, and assessed the methodological quality of the reviews. Patient experience concepts were compiled into five themes from a perspective of a) relational and b) functional aspects. A list of mechanisms used to capture the patient experience was also collected. Results: Thirty reviews were included (18 systematic and 12 scoping reviews). Relational aspects were reported in 29 reviews and functional aspects in 25 reviews. For relational aspects, the most prevalent themes were information needs (education and explanation on diseases, symptoms, and self-management strategies) and understanding patient expectations (respect and empathy). For functional aspects, the most prevalent themes were patient\u27s physical and environmental needs, (cleanliness, safety, and accessibility of clinics), and trusted expertise, (healthcare providers\u27 competence and clinical skills to provide holistic care). Interviews were the most frequent mechanism identified to collect patient experience. Conclusions: Measuring patient experience provides direct insights about the patient\u27s perspectives and may help to promote better patient-centered health services and increase the quality of care. Areas of improvement identified were interpersonal skills of healthcare providers and logistics of health delivery, which may lead to a more desirable patient-perceived experience and thus better overall healthcare outcomes