Article
Engineering, Electrical & Electronic
Gonzalo Gabriel Rodriguez, Esteban Anoardo
Summary: This article presents a practical method for measuring and calibrating magnetic fields in field-cycling magnetic resonance imaging instruments using proton resonances, while discussing techniques for adjusting the gradient unit position and measuring magnetic field gradients across the sample. It also discusses a new modality for slice selection and demonstrates contrast-enhancement using sample irradiation at low fields with spatial selectivity.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Chemistry, Analytical
Sofia Ahumada, Matias Tagle, Yeanice Vasquez, Rodrigo Donoso, Jenny Linden, Fredrik Hallgren, Marta Segura, Pedro Oyola
Summary: This article presents a training and testing method for calibrating low-cost sensors, and conducts field experiments in Quintero Bay, Chile. The calibration improves the accuracy and reliability of the sensors. The results show that different calibration methods have different effects on different types of sensors.
Article
Sport Sciences
J. A. K. O. B. R. ALLEN, R. E. M. Z. I. SATIROGLU, B. R. A. N. D. O. N. FICO, H. I. R. O. F. U. M. I. TANAKA, E. M. R. E. VARDARLI, J. E. F. F. R. E. Y. J. LUCI, E. D. W. A. R. D. F. COYLE
Summary: The study shows that 8 weeks of maximal power cycling training effectively increases muscle mass, maximal power, cardiovascular capacity, and functional tasks in untrained 50- to 68-year-olds.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2021)
Article
Multidisciplinary Sciences
Charles H. Martin, Tongsu (Serena) Peng, Michael W. Mahoney
Summary: The study provides a detailed meta-analysis of hundreds of publicly available pretrained models, showing that norm-based and power law-based metrics play important roles in evaluating neural network model quality. Power law-based metrics are quantitatively and qualitatively better at distinguishing well-trained models from poorly trained ones.
NATURE COMMUNICATIONS
(2021)
Article
Sport Sciences
Louise Burnie, Paul Barratt, Keith Davids, Paul Worsfold, Jonathan Stephen Wheat
Summary: This study aimed to investigate the effects of a gym-based strength training intervention on biomechanics and intermuscular coordination patterns during short-term maximal cycling. The results showed that leg strength and crank power significantly increased following the strength training intervention, accompanied by changes in muscle activity patterns.
JOURNAL OF SPORTS SCIENCES
(2022)
Article
Electrochemistry
Gilberto Carbonari, Rares-George Scurtu, Thomas Waldmann, Sonja Radloff, Marius Fluegel, Alice Hoffmann, Margret Wohlfahrt-Mehrens
Summary: Research shows that high charging rates can address the issue of long charging times for electric vehicles, and the development of a new tool using 3D printing technology can enhance the performance and cycling life of lithium-ion batteries.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Review
Sport Sciences
Antony M. J. Stadnyk, Franco M. Impellizzeri, Jamie Stanley, Paolo Menaspa, Katie M. Slattery
Summary: This review of track cycling research found a focus on athlete testing and performance optimization, with limited research in the training domain. Physical components were studied more frequently than mental, tactical, or technical components, and there was a lack of true experimental research using track cyclists.
Article
Multidisciplinary Sciences
Maximilian Parzen, Martin Kittel, Daniel Friedrich, Aristides Kiprakis
Summary: Energy system models are important for policy decisions and technology designs, but their misuse can lead to implausible outputs and mislead decision-making. Through 124 simulations, we explore the impact of variable cost allocation and solver accuracy on unintended storage cycling, and provide recommendations to reduce its occurrence.
Article
Engineering, Electrical & Electronic
T. Lentzsch, C. Schwabe, J. Lutz, T. Basler
Summary: Reliability analysis relies heavily on accurate measurement of junction temperatures in power semi-conductors. This article introduces a well-established method for junction temperature measurement and analyzes and evaluates calibration methods for new module configurations, finding that double-side heating modules can achieve better temperature uniformity.
MICROELECTRONICS RELIABILITY
(2023)
Article
Astronomy & Astrophysics
Vipin Sudevan, Ujjal Purkayastha, Rajib Saha
Summary: In this article, a formalism is presented to incorporate partial-sky maps into the Gibbs ILC algorithm for estimating the joint posterior density of the CMB signal and the theoretical CMB angular power spectrum. The method involves masking observed CMB maps, converting the cleaned angular power spectrum, and validating the results through Monte Carlo simulations. The main products of the analysis are a partial-sky cleaned CMB map and an estimate of the full-sky theoretical CMB angular power spectrum.
ASTROPHYSICAL JOURNAL
(2022)
Article
Environmental Sciences
David Moyer, Amit Angal, Hassan Oudrari, Evan Haas, Qiang Ji, Frank De Luccia, Xiaoxiong Xiong
Summary: This article introduces the application of the Visible Infrared Imaging Radiometer Suite (VIIRS) instruments in weather and climate applications. The instruments provide calibrated reflectance, radiance, and brightness temperature products. The article also discusses the calibration and testing methods of the instruments and their application in environmental data records.
Article
Sport Sciences
Polyxeni Spiliopoulou, Nikolaos Zaras, Spyridon Methenitis, Georgios Papadimas, Constantinos Papadopoulos, Gregory C. Bogdanis, Gerasimos Terzis
Summary: The study found that concurrent power training and high-intensity interval cycling inhibit the improvement in jumping performance. This inhibition is not explained by changes in muscle fiber type composition or vastus lateralis muscle fiber CSA adaptations.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2021)
Article
Physics, Applied
Yunliang Rao, Yuan Chen, Zhiyuan He, Yiqiang Chen, Chang Liu, Xinbing Xu, Yang Liu, Guoguang Lu
Summary: This work investigates the degradation behavior of 1.2 kV/52 A silicon carbide (SiC) power MOSFETs subjected to repetitive slow power cycling stress. The degradation of the gate oxide on the chip-level and the degradation of the bond wire and solder layer on the package-level have been observed. The growths of threshold voltage and gate leakage current are thought to be relevant with the degradation of gate oxide, while the appearance of fatigue in the bond wire and the delamination of the solder layer imply the degradation on the package-level.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Erping Deng, Luhong Xie, Lixin Wu, Haiyang Cao, Maoyang Pan, Ying Zhang, Yuxing Yan, Yongzhang Huang, Lijian Ding
Summary: This article examines the influence of load current injection modes (saturation mode and threshold mode) on the failure mechanism and lifetime of insulated gate bipolar transistors (IGBTs) during standard dc power cycling. Six groups of power cycling tests were conducted under nearly identical conditions, using two different current injection modes and two different packages. The failure mode after power cycling was confirmed through online monitoring of electrical and thermal parameters and scanning acoustic micrography. The failure mechanism was analyzed and the power cycling lifetime was compared and explained using finite element simulations. The results showed that the threshold load current injection mode can significantly reduce the load current for the desired junction temperature swing. However, it also altered the power cycling lifetime and failure mechanism, particularly in devices with bond wire failure. Therefore, it is not recommended for evaluating power cycling lifetime.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2023)
Article
Computer Science, Information Systems
Alen Rajsp, Iztok Fister
Summary: We propose a novel method for generating cycling training routes using an Evolutionary Algorithm and geographical property graphs. The algorithm is adjusted for the Property Graph domain, and data fusion from OpenStreetMap, EU-DEM, and existing training records is used to create an intersections-paths property graph. The approach allows for route generation based on starting and ending points, as well as distance and ascent. The research demonstrates the feasibility of the algorithm by presenting four different cases of generated routes and suggests further directions for research in route generation.
Article
Sport Sciences
Nicole Gordon, Chris R. Abbiss, Andrew J. Maiorana, Jeremiah J. Peiffer
EUROPEAN JOURNAL OF SPORT SCIENCE
(2020)
Article
Sport Sciences
Paul F. J. Merkes, Paolo Menaspa, Chris R. Abbiss
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2020)
Article
Sport Sciences
Chantelle du Plessis, Anthony J. Blazevich, Chris Abbiss, Jodie Cochrane Wilkie
JOURNAL OF SPORTS SCIENCES
(2020)
Article
Sport Sciences
Johann Windt, Kerry MacDonald, David Taylor, Bruno D. Zumbo, Ben C. Sporer, David T. Martin
JOURNAL OF ATHLETIC TRAINING
(2020)
Editorial Material
Physiology
Shona L. Halson, David T. Martin
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2021)
Article
Sport Sciences
Craig W. Pickett, Chris Abbiss, James Zois, Anthony J. Blazevich
Summary: The study indicates that faster rates of acceleration and the ability to exhibit greater stroke lengths at relatively high stroke rates are determinants of 200-m kayak race performance.
JOURNAL OF SPORTS SCIENCES
(2021)
Article
Physiology
Jason C. Bartram, Dominic Thewlis, David T. Martin, Kevin Norton
Summary: Analyzing the modeling of intermittent work capacity in elite cyclists, the Bartram adjustment was found to be an improvement over the Skiba 2 model, with a focus on W' in this population. However, in the specific context of team pursuit races, all models were too variable for effective use, indicating the need for exploration of individual recovery rates beyond population-specific rates.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2022)
Article
Physiology
Alannah K. A. McKay, Trent Stellingwerff, Ella S. Smith, David T. Martin, Inigo Mujika, Vicky L. Goosey-Tolfrey, Jeremy Sheppard, Louise M. Burke
Summary: This paper presents a 6-tiered Participant Classification Framework that can be used to classify individuals with different exercise backgrounds and athletic abilities. The framework can be applied prospectively and retrospectively in research, providing uniformity in classification practices.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2022)
Article
Physiology
Charli Sargent, Shona L. Halson, David T. Martin, Gregory D. Roach
Summary: This study examined the sleep patterns of professional cyclists during the Australian Tour Down Under. The results showed that sleep duration did not change significantly during the race and was slightly below the recommended target for adults.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2022)
Review
Sport Sciences
Matthew Morrison, David T. Martin, Scott Talpey, Aaron T. Scanlan, Jace Delaney, Shona L. Halson, Jonathon Weakley
Summary: This systematic review aims to identify the most frequently used tests, outcome variables, and normative values for basketball-related physical characteristics in adult male basketball players. The review found a wide range of test and outcome variables being used and indicated the challenges in establishing international standards for physical assessment of basketball players. Recommendations for testing protocols are provided to improve the interpretation of data.
Article
Sport Sciences
Shannon Connolly, Peter Peeling, Martyn J. Binnie, Paul S. R. Goods, Anthony J. Blazevich, Wouter P. Timmerman, Chris R. Abbiss
Summary: This study examined the magnitude and reliability of rate of torque development (RTD) during a cycling sprint with altered resistance, duration, and pedal downstroke. The results suggest that the average of downstrokes 2 and 3 during a 5-second sprint with heavy or very heavy resistance is the most reliable measurement of RTD in sprint cyclists.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2023)
Article
Biology
Paige E. Rice, Sophia Nimphius, Chris Abbiss, Kevin A. Zwetsloot, Kiisa Nishikawa
Summary: This investigation demonstrates the assessment of muscle fiber mechanics using micro-biopsies obtained from human medial gastrocnemii. The peak stress and steady-state stress of the muscle fibers were influenced by stretching velocity and fiber length.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Physiology
Nathan D. W. Smith, Chris R. Abbiss, Olivier Girard, Brendan R. Scott, Jeremiah J. Peiffer
Summary: This study investigated the influence of blood-flow restriction (BFR) on the distribution of pace, physiological demands, and perceptual responses during self-paced cycling. The results showed that trained cyclists adopted a more even distribution of pace when BFR was applied compared with a negative distribution without restriction. This study provides a useful tool to understand how the distribution of pace is self-regulated.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2023)
Review
Sport Sciences
Blake D. McLean, Donnie S. Strack, David T. Martin
Summary: An athlete's body is important for their performance and well-being, but game-relevant skills are more crucial than physical fitness in technically-driven team sports. Overemphasis on physical optimization can take away time from priorities. Athletes' non-strategic focus on physical preparation resembles avian 'avoidance preening', wasting time instead of being productive. To create healthy and productive environments, it is necessary to recognize avoidance behaviors and promote collaboration.
INTERNATIONAL JOURNAL OF SPORTS PHYSICAL THERAPY
(2022)
Review
Sport Sciences
Oliver R. Barley, Dale W. Chapman, Chris R. Abbiss