EDITION No.29 FEBRUARY 2017
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Optimal Breathing Gas Mixture in Professional Diving with Multiple Supply
Proceedings of the World Congress on Engineering 2021 WCE 2021, July 7-9, 2021, London, U.K. Optimal Breathing Gas Mixture in Professional Diving with Multiple Supply Orhan I. Basaran, Mert Unal compressors and cylinders, it was limited to surface air Abstract— Professional diving existed since antiquities when supply lines. In 1978, Fleuss introduced the first closed divers collected resources from the bottom of the seas and circuit oxygen breathing apparatus which removed carbon lakes. With technological advancements in the recent century, dioxide from the exhaled gas and did not form bubbles professional diving activities also increased significantly. underwater. In 1943, Cousteau and Gangan designed the Diving has many adverse effects on human physiology which first proper demand-regulated air supply from compressed are widely investigated in order to make dives safer. In this air cylinders worn on the back. The scuba equipment with study, we focus on optimizing the breathing gas mixture minimizing the dive costs while ensuring the safety of the the high-pressure regulator on the cylinder and a single hose divers. The methods proposed in this paper are purely to a demand valve was invented in Australia and marketed theoretical and divers should always have appropriate training by Ted Eldred in the early 1950s [1]. and certificates. Also, divers should never perform dives With the use of Siebe dress, the first cases of decompression without consulting professionals and medical doctors with expertise in related fields. sickness began to be documented. Haldane conducted several experiments on animal and human subjects in Index Terms—-professional diving; breathing gas compression chambers to investigate the causes of this optimization; dive profile optimization sickness and how it can be prevented. -
Adm Issue 10 Finnished
4x4x4x4 Four times a year Four times the copy Four times the quality Four times the dive experience Advanced Diver Magazine might just be a quarterly magazine, printing four issues a year. Still, compared to all other U.S. monthly dive maga- zines, Advanced Diver provides four times the copy, four times the quality and four times the dive experience. The staff and contribu- tors at ADM are all about diving, diving more than should be legally allowed. We are constantly out in the field "doing it," exploring, photographing and gathering the latest information about what we love to do. In this issue, you might notice that ADM is once again expanding by 16 pages to bring you, our readers, even more information and contin- ued high-quality photography. Our goal is to be the best dive magazine in the history of diving! I think we are on the right track. Tell us what you think and read about what others have to say in the new "letters to bubba" section found on page 17. Curt Bowen Publisher Issue 10 • • Pg 3 Advanced Diver Magazine, Inc. © 2001, All Rights Reserved Editor & Publisher Curt Bowen General Manager Linda Bowen Staff Writers / Photographers Jeff Barris • Jon Bojar Brett Hemphill • Tom Isgar Leroy McNeal • Bill Mercadante John Rawlings • Jim Rozzi Deco-Modeling Dr. Bruce Wienke Text Editor Heidi Spencer Assistants Rusty Farst • Tim O’Leary • David Rhea Jason Richards • Joe Rojas • Wes Skiles Contributors (alphabetical listing) Mike Ball•Philip Beckner•Vern Benke Dan Block•Bart Bjorkman•Jack & Karen Bowen Steve Cantu•Rich & Doris Chupak•Bob Halstead Jitka Hyniova•Steve Keene•Dan Malone Tim Morgan•Jeff Parnell•Duncan Price Jakub Rehacek•Adam Rose•Carl Saieva Susan Sharples•Charley Tulip•David Walker Guy Wittig•Mark Zurl Advanced Diver Magazine is published quarterly in Bradenton, Florida. -
'The Last of the Earth's Frontiers': Sealab, the Aquanaut, and the US
‘The Last of the earth’s frontiers’: Sealab, the Aquanaut, and the US Navy’s battle against the sub-marine Rachael Squire Department of Geography Royal Holloway, University of London Submitted in accordance with the requirements for the degree of PhD, University of London, 2017 Declaration of Authorship I, Rachael Squire, hereby declare that this thesis and the work presented in it is entirely my own. Where I have consulted the work of others, this is always clearly stated. Signed: ___Rachael Squire_______ Date: __________9.5.17________ 2 Contents Declaration…………………………………………………………………………………………………………. 2 Abstract……………………………………………………………………………………………………………… 5 Acknowledgements …………………………………………………………………………………………… 6 List of figures……………………………………………………………………………………………………… 8 List of abbreviations…………………………………………………………………………………………… 12 Preface: Charting a course: From the Bay of Gibraltar to La Jolla Submarine Canyon……………………………………………………………………………………………………………… 13 The Sealab Prayer………………………………………………………………………………………………. 18 Chapter 1: Introducing Sealab …………………………………………………………………………… 19 1.0 Introduction………………………………………………………………………………….... 20 1.1 Empirical and conceptual opportunities ……………………....................... 24 1.2 Thesis overview………………………………………………………………………………. 30 1.3 People and projects: a glossary of the key actors in Sealab……………… 33 Chapter 2: Geography in and on the sea: towards an elemental geopolitics of the sub-marine …………………………………………………………………………………………………. 39 2.0 Introduction……………………………………………………………………………………. 40 2.1 The sea in geography………………………………………………………………………. -
Orcas in Our Midst, Volume 2, the Next Generation
Salish Sea Watershed and Columbia Basin The Salish Sea includes marine waters from Puget Sound, Washington to Georgia Strait, British Columbia. Orcas forage and travel throughout these inland waters, and also depend on salmon returning to the Columbia River, especially in winter months. Map courtesy of Harvey Greenberg, Department of Earth and Space Sciences, University of Washington (from USGS data). The Whales Who Share Our Inland Waters J pod, with some L pod orcas, in a formation known as “resting.” In this pattern, pods travel slowly in tight lines just under the surface for a few minutes, then rise for a series of blows for a minute or two. Photo by Jeff Hogan. Volume 2: The Next Generation Second Edition, March, 2006, updated August 2010 First edition funded by Puget Sound Action Team’s Public Involvement and Education Program by Howard Garrett Orca Network Whidbey Island, Washington Olympia, Washington www.orcanetwork.org www.psat.wa.gov Teachers: Student Activity guides by Jeff Hogan, Killer Whale Tales, Vashon, WA available at www.killerwhaletales.org or contact [email protected]. Orca Network is dedicated to raising awareness about the whales of the Pacific Northwest and the importance of providing them healthy and safe habitats. COVER: “Salmon Hunter” by Randall Scott Courtesy of Wild Wings, LLC.Lake City, MN 55041 Prints by the artist may be ordered by calling 1-800-445-4833 J1, at over 50 years old, swims in the center of a tight group of close family including newborn J38, at right. Photo by Jeff Hogan, Killer Whale Tales. Dedication To the mysterious orcas roaming these bountiful waters, to readers of all ages who seek to understand wildlife in their natural settings, to celebrate the whales’ presence here, and to help protect and restore the habitats we share with our orca neighbors. -
Idstori Diver
Historical Diver, Number 15, 1998 Item Type monograph Publisher Historical Diving Society U.S.A. Download date 23/09/2021 19:54:03 Link to Item http://hdl.handle.net/1834/30858 IDSTORI DIVER "elf[[[! aik of each "ad" i> thii ~don't die without ha<>ing Conowed, >tofw, pmcha>ed o< made a fzefmd of >o<t>, to gfimf»< fo< youudf thi> n£w wo<td." CWJfiam 'Bufn, "23weath 'Jwpia ~ea>" 1928 Number 15 Spring 1998 Cousteau and Hass An early time line • Dr. Peter B. Bennett • O.S.S. Commemorative Stone • Jerri Lee Cross • • Evolution of the Australian Porpoise Regulator • Rouquayrol Denayrouze in Germany • • General Electric Closed Circuit Deep Diving System • • Bibliophiles • Nick lcom • Gahanna Italian Diving Helmet • HISTORICAL DIVING SOCIETY USA HISTORICAL DIVER MAGAZINE A PUBLIC BENEFIT NONPROFIT CORPORATION ISSN 1094-4516 2022 CLIFF DRIVE #119 THE OFFICIAL PUBLICATION OF SANTA BARBARA, CALIFORNIA 93109 U.S.A. THE HISTORICAL DIVING SOCIETY U.S.A. PHONE: 805-692-0072 FAX: 805-692-0042 DIVING HISTORICAL SOCIETY OF e-mail: [email protected] or HTTP://WWW.hds.org/ AUSTRALIA, S.E. ASIA EDITORS ADVISORY BOARD Leslie Leaney, Editor Dr. Sylvia Earle Dick Long Andy Lentz, Production Editor Dr. Peter B. Bennett 1. Thomas Millington, M.D. CONTRIBUTING EDITORS Dick Bonin Bob & Bill Meistrell Bonnie Cardone E.R. Cross Nick Icorn Scott Carpenter Bev Morgan Peter Jackson Nyle Monday Jeff Dennis John Kane Jim Boyd Dr. Sam Miller Jean-Michel Cousteau Phil Nuytten OVERSEAS EDITORS E.R. Cross Sir John Rawlins Michael Jung (Germany) Andre Galeme Andreas B. Rechnitzer Ph.D. -
Attack His with the Rom May 9
SUOAR WEATHER II Cnno: 3.98Co por lb., Thor. mln., 67. 170.70 ior ton. liar., 8 a. in., 30.12. Hoots: 13b. cwt, $05,20 Rain, 24b., 8 n. m., trace por ton. tmn Star Wind, 12m., 10 N.E. Telephone 2365 Star Business Office The Largest Daily Paper in The Territory SECOND EDITION. VOL. XX TWELVE PAGE8. HONOLULU, HAWAII , THURSDAY, MAY 9, 1912. TWELVE PAQE8, NO. 6274. BIG STRIKE OF GOLD NUGGETS MADE ON THE KOYUKUK RIVER Money For FISH Defendin GEN. GOMEZ IS WILL NOT UNDER GUARD RESIG in AT JUA Auditor Fisher vigorously denied ock the rumor that he was going to re- (Associated Prets Cables to the 8tar.) sign position Territory, Attack his with the rom May 9. r WASHINGTON, General Gomez, who lately declared himself and declared that it was his intention the provisional president of Mexico, has been captured and Is a prisoner to hang on till the last 'n the custom houso at Juarez, unde: a heavy guard. (Special Cablegram to the Star.) By H. M. AYRES. into two forces, called tho "Blues" "I have no idea who could have ESCALON, May 9. General Oroa co has marched southward but nothing'! (Telephoned to the Star.) and the "Reds." Tho "Blues" con- started such a rumor," said Mr. of moment has happened. 9.-- p. WASHINGTON, May The Naval Fisher. "I am still here and I intend, SCHOFIELD BARRACKS, 2:30 sist of the Fifth Cavalry less one m 9. Army maneuvers inci- to stay." May' squadron, .the Second Infantry less A LOS ANGELES TRAGEDY. -
Proposed Incidental Harassment Authorizations for Seismic Surveys in the Atlantic Ocean
AMERICAN LITTORAL SOCIETY – ANIMAL LEGAL DEFENSE FUND – ANIMAL WELFARE INSTITUTE – CAPE FEAR RIVER WATCH – CENTER FOR A SUSTAINABLE COAST – CENTER FOR BIOLOGICAL DIVERSITY CET LAW – CLEAN OCEAN ACTION – COASTAL CONSERVATION LEAGUE – CONSERVATION LAW FOUNDATION – COOK INLETKEEPER – DEFENDERS OF WILDLIFE – THE DOLPHIN PROJECT – EARTH LAW CENTER – EARTHJUSTICE – ENVIRONMENT GEORGIA – THE HUMANE SOCIETY OF THE U.S. – INITIATIVE TO PROTECT JEKYLL ISLAND – INTERNATIONAL FUND FOR ANIMAL WELFARE – MATANZAS RIVERKEEPER – MIAMI WATERKEEPER – NATURAL RESOURCES DEFENSE COUNCIL – NORTH CAROLINA COASTAL FEDERATION – NORTH CAROLINA WILDLIFE FEDERATION – OCEAN CONSERVATION RESEARCH – ONE HUNDRED MILES – ST. JOHNS RIVERKEEPER – SATILLA RIVERKEEPER – SIERRA CLUB – SIERRA CLUB ATLANTIC CHAPTER – SIERRA CLUB CHAPTERS OF FLORIDA, GEORGIA, MAINE, MARYLAND, MASSACHUSETTS, NEW JERSEY, NORTH CAROLINA, SOUTH CAROLINA, AND VIRGINIA – SOUND RIVERS – SOUTH CAROLINA WILDLIFE FEDERATION – SOUTHERN ENVIRONMENTAL LAW CENTER – STOP OFFSHORE DRILLING IN THE ATLANTIC (SODA) – SURFRIDER FOUNDATION – WHALE AND DOLPHIN CONSERVATION – WORLD WILDLIFE FUND PUBLIC HEARINGS REQUESTED By Electronic Mail July 21, 2017 Ms. Jolie Harrison Chief, Permits and Conservation Division Office of Protected Resources National Marine Fisheries Service 1315 East-West Highway Silver Spring, MD 20910 [email protected] Re: Proposed incidental harassment authorizations for seismic surveys in the Atlantic Ocean Dear Ms. Harrison: On behalf of the Natural Resources Defense Council (“NRDC”), Center -
Second Quarter 2016 • Volume 24 • Number 87
The Journal of Diving History, Volume 24, Issue 2 (Number 87), 2016 Item Type monograph Publisher Historical Diving Society U.S.A. Download date 10/10/2021 17:42:22 Link to Item http://hdl.handle.net/1834/35936 Second Quarter 2016 • Volume 24 • Number 87 After Boutan, Underwater Photography in Science | U.S. Divers Prototype Helmet for SEALAB III, DSSP Vintage Australian Demand Valves | Fred Devine and the SALVAGE CHIEF | Cousteau and CONSHELF 2016 Historical Diving Society USA Raffle Get your tickets now! The predecessor of the USN Mark V Helmet #3 of 10 manufactured by DESCO to the specifications and recommendations in Chief Gunner George Stillson’s 1915 REPORT ON DEEP DIVING TESTS Tickets are $5 each or five for $20 Tickets can be ordered by contacting [email protected] or by mailing a check or money order payable to HDS USA Fund raiser, PO Box 453, Fox River Grove, IL 60021-0453. The drawing will take place at the Santa Barbara Maritime Museum, Santa Barbara, CA on August 27, 2016. Other prizes include HDS apparel, books, and DVDs. The winner need not be present to win. All proceeds benefit the Historical Diving Society USA. Prize Winners are responsible for shipping and all applicable taxes. No purchase necessary. To obtain a non-purchase ticket send a self addressed stamped envelope to the above address. Void where prohibited by law. Grand Prize is an $8,000 Value Second Quarter 2016, Volume 24, Number 87 The Journal of Diving History 1 THE JOURNAL OF DIVING HISTORY SECOND QUARTER 2016 • VOLUME 24 • NUMBER 87 ISSN 1094-4516 FEATURES Civil War Diving and Salvage Vintage Australian Demand Valves By James Vorosmarti, MD By Bob Campbell 10 Like much of American diving during the 19th century, the printed 22 As noted by historian Ivor Howitt, and here by author Bob Campbell, record of diving during the Civil War is scarce. -
Full Text in Pdf Format
Vol. 14: 157–169, 2011 ENDANGERED SPECIES RESEARCH Published online August 11 doi: 10.3354/esr00344 Endang Species Res Contribution to the Theme Section ‘Beyond marine mammal habitat modeling’ OPENPEN ACCESSCCESS Modelling harbour porpoise seasonal density as a function of the German Bight environment: implications for management Anita Gilles1,*, Sven Adler1,2, Kristin Kaschner1,3, Meike Scheidat1,4, Ursula Siebert1 1Research and Technology Centre (FTZ), Christian-Albrechts-University of Kiel, 25761 Büsum, Germany 2University of Rostock, Institute for Biodiversity, 18057 Rostock, Germany 3Evolutionary Biology & Ecology Lab, Institute of Biology I (Zoology), Albert-Ludwigs-University, 79104 Freiburg, Germany 4Wageningen IMARES, Institute for Marine Resources and Ecosystem Studies, Postbus 167, 1790 AD Den Burg, The Netherlands ABSTRACT: A classical user–environment conflict could arise between the recent expansion plans of offshore wind power in European waters and the protection of the harbour porpoise Phocoena pho- coena, an important top predator and indicator species in the North Sea. There is a growing demand for predictive models of porpoise distribution to assess the extent of potential conflicts and to support conservation and management plans. Here, we used a range of oceanographic parameters and gen- eralised additive models to predict harbour porpoise density and to investigate seasonal shifts in por- poise distribution in relation to several static and dynamic predictors. Sightings were collected during dedicated line-transect aerial surveys conducted year-round between 2002 and 2005. Over the 4 yr, survey effort amounted to 38 720 km, during which 3887 harbour porpoises were sighted. Porpoises aggregated in distinct hot spots within their seasonal range, but the importance of key habitat descriptors varied between seasons. -
Idstori Diver
Historical Diver, Number 15, 1998 Item Type monograph Publisher Historical Diving Society U.S.A. Download date 04/10/2021 10:39:13 Link to Item http://hdl.handle.net/1834/30858 IDSTORI DIVER "elf[[[! aik of each "ad" i> thii ~don't die without ha<>ing Conowed, >tofw, pmcha>ed o< made a fzefmd of >o<t>, to gfimf»< fo< youudf thi> n£w wo<td." CWJfiam 'Bufn, "23weath 'Jwpia ~ea>" 1928 Number 15 Spring 1998 Cousteau and Hass An early time line • Dr. Peter B. Bennett • O.S.S. Commemorative Stone • Jerri Lee Cross • • Evolution of the Australian Porpoise Regulator • Rouquayrol Denayrouze in Germany • • General Electric Closed Circuit Deep Diving System • • Bibliophiles • Nick lcom • Gahanna Italian Diving Helmet • HISTORICAL DIVING SOCIETY USA HISTORICAL DIVER MAGAZINE A PUBLIC BENEFIT NONPROFIT CORPORATION ISSN 1094-4516 2022 CLIFF DRIVE #119 THE OFFICIAL PUBLICATION OF SANTA BARBARA, CALIFORNIA 93109 U.S.A. THE HISTORICAL DIVING SOCIETY U.S.A. PHONE: 805-692-0072 FAX: 805-692-0042 DIVING HISTORICAL SOCIETY OF e-mail: [email protected] or HTTP://WWW.hds.org/ AUSTRALIA, S.E. ASIA EDITORS ADVISORY BOARD Leslie Leaney, Editor Dr. Sylvia Earle Dick Long Andy Lentz, Production Editor Dr. Peter B. Bennett 1. Thomas Millington, M.D. CONTRIBUTING EDITORS Dick Bonin Bob & Bill Meistrell Bonnie Cardone E.R. Cross Nick Icorn Scott Carpenter Bev Morgan Peter Jackson Nyle Monday Jeff Dennis John Kane Jim Boyd Dr. Sam Miller Jean-Michel Cousteau Phil Nuytten OVERSEAS EDITORS E.R. Cross Sir John Rawlins Michael Jung (Germany) Andre Galeme Andreas B. Rechnitzer Ph.D. -
Harbor Porpoise in the Salish Sea Table of Contents
Harbor Porpoise in the Salish Sea A Species Profile for the Encyclopedia of Puget Sound By Jacqlynn C. Zier and Joseph K. Gaydos (Photo: Harbor porpoise surfacing by Erin D'Agnese, Washington Department of Fish and Wildlife) Table of Contents Introduction ............................................................................................................................................ 2 Stock Delineation .................................................................................................................................. 2 Distribution ............................................................................................................................................. 4 Population Trends ................................................................................................................................ 5 Reproduction .......................................................................................................................................... 6 Breeding Seasons ............................................................................................................................................ 6 Females ............................................................................................................................................................... 6 Males .................................................................................................................................................................... 7 Hybridization ................................................................................................................................................... -
Harbour Porpoise Habitat Preferences: Robust Spatio-Temporal Inferences from Opportunistic Data
Vol. 448: 155–170, 2012 MARINE ECOLOGY PROGRESS SERIES Published February 23 doi: 10.3354/meps09415 Mar Ecol Prog Ser Harbour porpoise habitat preferences: robust spatio-temporal inferences from opportunistic data Saana Isojunno1,*, Jason Matthiopoulos1,2, Peter G. H. Evans3 1The Sea Mammal Research Unit, University of St Andrews, Scottish Oceans Institute, University of St Andrews, St Andrews, Fife KY16 8LB, UK 2Centre for Research into Environmental and Ecological Modelling, Scottish Oceans Institute, University of St Andrews, St Andrews, Fife KY16 9LZ, UK 3Sea Watch Foundation, Ewyn y Don, Bull Bay, Amlwch, Anglesey, Wales LL68 9SD, UK ABSTRACT: Statistical habitat modelling is often flagged as a cost-effective decision tool for spe- cies management. However, data that can produce predictions with the desired precision are dif- ficult to collect, especially for species with spatially extensive and dynamic distributions. Data from platforms of opportunity could be used to complement or help design dedicated surveys, but robust inference from such data is challenging. Furthermore, regression models using static covariates may not be sufficient for animals whose habitat preferences change dynamically with season, environmental conditions or foraging strategy. More flexible models introduce difficulties in selecting parsimonious models. We implemented a robust model-averaging framework to dy - namically predict harbour porpoise Phocoena phocoena occurrence in a strongly tidal and topo- graphically complex site in southwest Wales using data from a temporally intensive platform of opportunity. Spatial and temporal environmental variables were allowed to interact in a general- ized additive model (GAM). We used information criteria to examine an extensive set of 3003 models and average predictions from the best 33.