Diving For Science 2005 Proceedings Of The American

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Diving For Science 2005 Proceedings Of The American Academy Of Underwater Sciences EXHALATION PHASE INHALATION PHASE Figure 2: Schematic representation of a bellows-driven, variable volume exhaust (VVE) UBA; a respiratory-coupled gas injection apparatus. 36
PO2, Ata 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 PO2, Ata 1.00 Diving For Science 2005 Proceedings Of The American Academy Of Underwater Sciences Variable Volume Exhaust (VVE) Oxygen Level vs Diver Activity 1.80 1.60 1.40 1.20 0.80 0.60 0.40 0.20 0 10 20 30 40 50 60 Time, min Shallow Injection System Gas injection rate at 0 fsw, slpm= 17 Gas injection rate at cutoff depth, slpm= Cutoff depth, fsw= 30 O2% in shallow makeup gas= 28 .5 slpm 1 slpm 1.5 slpm 2.5 slpm 3 slpm Circuit Oxygen Levels CSCR 190 Stabilized Circuit Oxygen Levels with Shallow Water Injection 17 Bellows System EVR, %= 10.00 k = 8.995 4569 %O2 in makeup gas= 28 Figure 4: Comparison of predicted circuit oxygen levels with those obtained in unmanned testing. Minimal variations were observed for RMVs between 22.5 lpm and 90 lpm at depths beyond 30 FSW. Shallow water injection was shown to elevate circuit oxygen levels near the surface, as predicted. 37 Figure 3: Circuit oxygen levels vs time delivered to a diver at a depth of 60 FSW when using a VVE semi-closed rebreather at oxygen consumption levels ranging from 0.5 - 3.0 slpm. A 50% oxygen mix is injected with an EVR of 6.25% into a circuit volume of 6 liters. 0.00 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 Depth, FSW 22.5 LPM Prediction 62.5 LPM Prediction 22.5 lpm 40 lpm 62.5 lpm 75 lpm 90 lpm
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Page 47 and 48: Evolution of The NOAA Minimum Manuf
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Page 65 and 66: Underwater Archaeology and the Conf
Page 79 and 80: Assessment of Abalone Stocks in Sou
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Diving For Science 2005 Proceedings
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The Ecology of Fishes on Deep Bould
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Results Diving For Science 2005 Pro
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Discussion Diving For Science 2005
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Patterns of Mixed-Species Foraging
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Group Size 3 2 Diving For Science 2
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Predatory Behavior of Piscivorous R
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Baseline Scuba Assessments of Habit
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30 ft. (9.14 m) 45 ft. (13.7 m) 65
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Table 4. Comparison of mean total l
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Scuba Techniques Used In Risk Asses
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Table 4. Mobility traits influencin
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NOAA’s Diving Accident Management
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The Risk of Decompression Sickness
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The Pacific Islands Fisheries Scien
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Reciprocities Diving For Science 20
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University of South Florida College
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The Dives Diving For Science 2005 P
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Community Science - Recruiting, Tra
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Diving in two Marine Lakes in Croat
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Scientific Diving Techniques Applie
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Diving for Science: Teaching Divers
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Scientific Diving and ROV Technique
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The Southern California Regional Ke
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Conclusion Diving For Science 2005
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