Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"critical power"”.
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Critical power characteristics of axially heterogeneous tight bundle designs
Accurate prediction of the dryout critical power in fuel rod bundles is challenging and has important implications for the economy and safety of Boiling Water Reactors (BWRs). This is especially true for the tight bundle design of the Resource-Renewable BWR (RBWR) proposed by Hitachi, Ltd. Unlike a …
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Analysis of reliability and validity of critical power testing in the field
Critical Power (CP) provides a useful indicator of training status in continuous activities lasting between approximately 2 and 30 minutes. To date, determination of CP has been mostly constrained to the laboratory. The conventional laboratory protocol commonly requires multi-day time-to-exhaustion …
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Revisiting the Power-duration Relationship and Developing Alternative Protocols to Estimate Critical Power Parameters
Critical Power concept is used extensively in sport to characterize an individual's fitness by estimating the anaerobic and the aerobic component of the energy system, anaerobic work capacity (W') and Critical Power (CP). The model makes an assumption that all types of athlete have the same pattern …
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Impact of the menstrual cycle on critical power and submaximal exercise oxygen uptake in recreationally active, eumenorrheic females
… study aimed to investigate differences in critical power (CP) and submaximal exercise oxygen uptake (VO2) across three distinct phases of the menstrual cycle (early follicular, late follicular, and mid luteal) in 12 recreationally active, eumenorrheic females. Menstrual cycle phase was …
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Determining the Maximal Physiological Steady State in Cycling with Precision: Critical Power Estimations or Self-selected Exercise Intensity?
Giving the inherent limitations of critical power (CP) testing and the demanding maximal lactate steady state (MLSS) protocol, this thesis aimed: i) to compare the power outputs (POs) derived from two methods of estimating CP (i.e., the power-time relationship (CPHYP) and the 3-minute all-out test …
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Optimizing cycling power
… we determine a viable bioenergetic model for power allocation during a cycling race. Various models have been proposed to address power allocation in races with two models rising above others: the Morton-Margaria Three Tank model and the Skiba Energy Balance model. The energy balance model was …
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Extremely short duration high intensity training as a cardiovascular training method for front line police officers
… ml kg-1 min-1). Participants’ blood pressure, critical power and VO2peak were tested across two testing days on three occasions; at the beginning of the study, post 8 weeks control and post 8 weeks High Intensity Interval Training. The High Intensity Interval training protocol consisted of 6 10 …
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time + again: critical contradictions in Chris Marker's La Jetée
This thesis is an investigation into the critical power of a work of art. This critical power is seen to be produced by paradoxes which are particular to it and which have the potential to infiltrate theoretical debates in the form of contradictions. The thesis takes the form of a case study of …
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Degradation and Breakdown of Ultrathin Gate Oxide
… It has been proposed that there is a threshold power that divides soft and hard breakdown. In this thesis, time-to-breakdown of ultrathin gate oxide is tested, and the power dissipation after breakdown is obtained. Based on the critical power value that separates the soft and hard breakdown, …
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Feasibility of breeding in hard spectrum boiling water reactors with oxide and nitride fuels
… positive using two different methods (10% power increase and 5% flow reduction). The standard RBWR assembly designs, which use tight lattice hexagonal fuel rod arrays, with oxide fuel were then replaced with various nitride fuel assembly designs to determine the potential increase in …
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The effect of self-regulation on high intensity exercise
… (HIT) can be used to increase endurance and power output measures between males and females.<br/><br/>Study one aimed to determine if males and females can maintain mean power output (MPO) during repeated sprints when using self-regulated (SR) rest, and identify male and female response in …
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Design of annular fuel for high power density BWRs
Enabling high power density in the core of Boiling Water Reactors (BWRs) is economically profitable for existing or new reactors. In this work, we examine the potential for increasing the power density in BWR plants by switching from the current solid fuel to annular fuel cooled both on its inside …
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Examining Sex Differences in Substrate Utilization During Threshold-Based Exercise Prescription
… differences in lactate threshold (LT) and critical power (CP). Thus, the purpose of this thesis was to examine the effect of threshold-based exercise prescribed (THR) using LT and CP to determine whether using THR – specifically, an intensity anchored halfway between LT and CP (Δ50) - …
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Inverse uncertainty quantification of trace physical model parameters using Bayesian analysis
… and radial void fraction distributions, and critical power for a wide range of system conditions. In this thesis, the steady-state cross-sectional averaged void fraction distribution from BFBT experiments is used as the input for inverse uncertainty algorithm, and the selected physical …
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Determination of Critical Rest Interval using Repeated Sprint Ability Testing
The critical power (CP) concept has been used to determine the appropriate rest interval during intermittent exercise through the investigation of critical rest interval (CRI). Repeated sprint ability (RSA) testing has been developed to define the athlete’s ability to recover and maintain maximal …
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A combined classification and queuing system optimization approach for enhanced battery system maintainability
Battery systems are used as critical power sources in a wide variety of advanced platforms (e.g., ships, submersibles, aircraft). These platforms undergo unique and extreme mission profiles that necessitate high reliability and maintainability. Battery system failures and non-optimal maintenance …
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High power pulse UV source development and its applications
Laser filament provides scientists a powerful tool to promote and guide lightning discharge. An ultraviolet (UV) laser provides unique advantages due to a low threshold of filament formation as well as long propagation distance. However, a major bottleneck in conducting these experiments is the …
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