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Thirty-one dentists were tested relative to the optimal and maximum amount of torque they could deliver to posts in teeth. The mean for the optimal amount of torque was 15.55 ounce-inches, and the mean for the maximum amount of torque was 35.29 ounce-inches. Female dentists showed a statistically significantly lower mean difference of 24.5 ounce-inches on the maximum torque test.
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http://dx.doi.org/10.1016/0022-3913(85)90501-3 | DOI Listing |
Sci Rep
March 2025
School of Mechanical and Electronically Engineering, Xinxiang University, Xinxiang, 453003, China.
The high magnetic saturation at flux isolation bridge of interior permanent magnet synchronous motor (IPMSM) enriches the harmonic content of air gap flux density. When IPMSM operates at low speeds, these harmonics of air gap flux density increase torque ripple. An IPMSM with I2V type is proposed to further improve sine degree of no-load air gap flux density, achieving high torque density and low torque ripple.
View Article and Find Full Text PDFWearable Technol
February 2025
Brussels Human Robotics Research Center (BruBotics), Vrije Universiteit Brussel, Brussel, Belgium.
The wide adoption of occupational shoulder exoskeletons in industrial settings remains limited. Passive exoskeletons were proved effective in a limited amount of application scenarios, such as (quasi-)static overhead handling tasks. Quasi-active devices, albeit representing an improved version of their passive predecessors, do not allow full modulation of the amount of assistance delivered to the user, lacking versatility and adaptability in assisting various dynamic tasks.
View Article and Find Full Text PDFSci Rep
March 2025
Marchesi Antinori S.p.A, Florence, Italy.
Performance analyses of mechanised vineyard activities require a reliable source of information that allows proper sizing of the tractor fleet according to field requirements and an assessment of the operating costs generated by them. To achieve that, however, a large amount of data regarding the power required by machinery and their field capacity, together with fuel consumption per hour and per hectare, is needed. This research, based on CAN-bus raw data collected from narrow tractors of 75 kW through a farming management information system (FMIS) system and then processed through a Python package called Vineyardutils created by the authors resulted in a dataset that summarises 374 labelled mechanised operations over a total of 717 working hours.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
July 2024
Continuous passive motion of the toes improves blood circulation and may help ankle injuries heal faster. Soft devices are more appropriate than rigid devices to accommodate a variety of foot shapes. Most conventional pneumatic soft robots are actuated cyclically by solenoid valves, which require large amounts of power for valves and controllers.
View Article and Find Full Text PDFBMC Oral Health
March 2025
Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, People's Republic of China.
Background: In clear aligner therapy, tooth movement can be designed individually by computer software. However, the deformation of the aligner created by the virtual movement of one tooth may affect the actual movement of other teeth. This study aimed to evaluate the impact of the amount of canine movement on the responses of incisors and posterior teeth during maxillary anterior en-masse retraction with clear aligner.
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