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Bill's Cave Diving Lexicon
Bill’s Cave Diving Lexicon 120 Rule: Noticing from the Navy NDL table that, for certain depths, depth + bottom time = 120 so that the NDL can be determined by subtracting the depth from 120. 200 DIN: Thread depth in a DIN valve and associated pressure (200 BAR) that can be handled. This size (7 threads) allows for a DIN to yoke conversion. 300 DIN: Thread depth in a DIN valve that provides the most secure (9 threads) connection and can withstand 300 BAR pressure. 5 nines pure: 99.999% pure, as in a gas. 50-50: Gas mix of 50% oxygen and 50% nitrogen used for decompression gas. 6351-T6 Aluminum Alloy: Alloy that has had problems with tank ruptures. Absolute Pressure: Total pressure being exerted on a diver At sea level Absolute pressure is 1 ATA and it increases by 1 ATA for each 33fsw (34ffw). ADDD (Air, Duration, Depth, Distance): Limits for dive termination acronym minimum Air volume/pressure, maximum Duration of dive, maximum Depth of dive, and maximum Distance of penetration. ADV (Automatic Deflation Valve, and Automatic Diluent Valve ): Device on a buoyancy compensator that allows for rapid air purging, and device on a rebreather that dilutes the breathing mix. AGE (Arterial Gas Embolism): A lung expansion injury. A condition in which gas bubbles enter the arterial system and cause damage by blocking blood flow to vital organs, most commonly the brain. This is generally caused by air passing through the walls of the alveoli into the bloodstream. Air: A gas mixture of Oxygen (21%), Nitrogen (78%), and other gasses (1%, Helium, Argon, etc.). -
Flesh-Footed Shearwater Population Monitoring 2018/19
Flesh-footed shearwater population monitoring and estimates: 2018/19 season DOC- 5979590 Flesh-footed shearwater population monitoring and estimates: 2018/19 season Patrick Crowe Mike Bell Wildlife Management International Ltd PO Box 607 Blenheim 7240 New Zealand www.wmil.co.nz This report was prepared by Wildlife Management International Limited for the Department of Conservation as partial fulfilment of the project POP2018-04 Flesh-footed Shearwater Research, contract dated 9 November 2018. 14 June 2019 This report should be cited as: Crowe, P.; Bell, M. 2019. Flesh-footed shearwater population monitoring and estimates: 2018/19 season. Report prepared by Wildlife Management International Limited for the New Zealand Department of Conservation, Wellington. 32p. All photographs in this report are copyright © WMIL unless otherwise credited, in which case the person or organisation credited is the copyright holder DOC- 5979590 Executive Summary This report covers the population monitoring of flesh-footed shearwaters (Puffinus carneipes) on Ohinau and Lady Alice Islands carried out under Conservation Services Programme project POP2018- 04. It also covers two flesh-footed shearwater population estimates: Lady Alice Island and Motumahanga Island. During the 2018/19 season we monitored 247 and 264 study burrows on Ohinau and Lady Alice Island respectively. The breeding success on Ohinau Island was 62%, down from 68% in the previous season. Breeding success on Lady Alice Island remained consistently low at 52%. There was no significant difference in breeding success between the two islands. Burrowscope (control) burrows, had a higher measured breeding success on both islands, however, the difference was again not statistically significant. We were able to identify both partners in 81% of burrows on Ohinau Island and 95% of burrows on Lady Alice Island. -
X-Ray Magazine L Issue 66
tech talk With 23 years of hindsight... Set Theory — A Look at Rigging Options —The following article is reprinted but got people thinking. Though waist straps using short tethers. from the pioneering American jour- some of the ideas were rejected, Pouches mounted on the waist- nal for technical diving, aquaCORPS, the concept is valid and has been band are used for carrying smaller V4, MIX, January-February 1992. implemented in various ways by items such as a line cutter, slates and members of the community. tables, and line markers. The back Edited by Michael Menduno Equipment is never rigged exter- up second stage regulator is secured Photos courtesy of Lamar Hires, nally on the sides of tanks, and noth- by a piece of surgical tubing that is Bob Janowski, Michael Menduno, ing, in particular the long hose, lies worn around the neck. Tom Morris and Joel Silverstein above the manifold crossover bar. Rigging completed, there is no All split rings are removed so as not substitute for technique. In order Though double (twinset) to create a line trap, and so is any- to protect the cave, diving in small tanks and stage bottles are thing that can foul or break delicate fragile places requires the finesse cave formations; many are more and the brainwork of a techni- generally a requirement than 13,000 years old and can never cal climber. Like their free hanging for most technical diving recover. counter-parts, divers relay on a series operations, diving sets vary The Submersible Pressure Gauge of ‘moves’ rather than brute force. -
Der Mann Und Sein Meer | Strappy – Der Grosse Weisse… Un Trident D'or Pour Couronner 30 Ans De Carrière Spedizione Graf Z
NEREUSDIE OFFIZIELLE ZEITSCHRIFT DES SUSV – LE MAGAZINE OFFICIEL DE LA FSSS – LA RIVISTA UFFICIALE DELLA FSSS Der Mann und sein Meer | Strappy – der grosse Weisse… Un trident d’or pour couronner 30 ans de carrière Spedizione Graf Zeppelin | Immersioni subacquee a Marsa Alam www.susv.ch | www.fsss.ch Oktober | Octobre | Ottobre | 2011 1 5 Inhalt | SommaIre | SommarIo 4 www.susv.ch 44 aV 2012 5 Editorial – Votre opinion SUSV – FSSS & news 8 www.st-prex.ch 9 Ouvert à tous – swisssub.ch 10 Interdiction ponctuelle de plonger.... 16 Boudry: l’arrêté temporaire Titelbild | Couverture | Copertina: 18 Cours d'archéologie subaquatique Heinz Toperczer | www.tophai.at 22 Concours: «best digital shots 5-2011» 24 Portfolio: Alessia Comini e Cristian Umili 33 Toujours plus présentes – les femmes dans la plongée Tec 34 Un trident d’or pour couronner 30 ans de carrière 38 le Haven & Co 40 Deepsea under the Pôle by Rolex 4 www.susv.ch 44 DV 2012 5 Editorial – Ihre Meinung SUSV – FSSS & news 6 SSI Scuba Rangers Club 7 Handbuch der Tauchersprache 8 Anodonta anatina musste umziehen 12 FTU-News 14 Stoos ob Schwyz… 16 UW-Rugby Plauschturnier 17 Unterwasser-Foto-Video Treffen der DRS 4 www.fsss.ch 19 Tauchschiff.ch 44 aV 2012 20 Dawata taucht auf – mit neuem Angebot 5 Editoriale – la vostra opinione 21 Mani, der Barrakuda SUSV – FSSS & news 22 Wettbewerb: «best digital shots 5-2011» 12 Campionati europei giovanili di nuoto pinnato 24 Portfolio: Alessia Comini e Cristian Umili 22 Concorso: «best digital shots 5-2011» 26 Volle Sicht – ohne Brille 23 Incontri: Alessia -
Introductory Deco Lessons
Some Introductory “Lessons” About Dissolved Gas Decompression Modeling Presented by Erik C. Baker, P.E. General discussion: First of all, I believe that before someone engages in the actual programming of a decompression model, they need to do quite a bit of research into the fundamentals behind that model. Usually this means the dissolved gas (Haldanian) model as implemented by Bühlmann and/or others. Unfortunately, the relevant information is not conveniently compiled or located in one handy reference. The books by Bühlmann have been the closest thing to an all-in-one reference, but the information is incomplete, especially if you want to program the model. Bühlmann's work has to be taken in the historical context from which it was derived. Bühlmann did not "invent" most of the concepts that he presents in his books. He took the work done by others in the field before him and refined the model (slightly). The major elements of the dissolved gas model were developed by John S. Haldane, Robert D. Workman (U.S. Navy), and Heinz R. Schreiner (American researcher). Bühlmann relied heavily on the work of Robert Workman and communicated frequently with Schreiner as a colleague in the late 60's and early 70's. Bill Hamilton was a co-worker of Schreiner's in the early years. Workman, Schreiner, and Bühlmann are deceased now. Bill Hamilton is still very active in the field and is probably one of the best ongoing sources for information on decompression topics. The key elements of the present day dissolved gas model, however, were laid down in a few research papers many years ago. -
Lavad Ome Lavad
• Into the Lava Dome Expedition to Lanzarote • Safeguarding the Coral Reefs of Cayos Cochinos, Honduras Biosphere Expeditions • B-29 Super Fortress • British Columbia’s Browning Pass The world of “Clavella John” • Wreck of the Mexican Pride Gulf of Mexico • Wreck of the U-2513 The First True Modern Submarine • The Blue Duck and a Two-Bob Watch Pearse Resurgence, New Zealand • Mystical Faces Escape from Captive Places Lake Atitlan, Guatemala • 50 Fathoms Below Taking yourself and your camera to their limits • Isla Gorgona, Colombia • The new Forty Fathom Grotto DivingDiving intointo thethe LLLavaavaava DDDomeomeome Customized CCR Systems The only multi-mission, multi-tasking CCR in the world. Features: • Customized electronics and decompression systems • Custom CO2 scrubber assemblies • Custom breathing loop and counterlung systems • Modularized sub systems • Highly suitable for travel • Suitable for Science, commercial, and recreational diving www.customrebreathers.com Ph: 360-330-9018 [email protected] Publisher’s Notes I find myself returning from another successful expedition—this time to Guatemala’s Lake Atitlan where the ADM dive team discovered, documented, and recovered a multitude of pre- Columbian Mayan pottery. Of course, these precious ancient pieces were donated to the local museum so that future genera- tions can learn about the Mayans, and how they lived and sur- vived along the lakeshore. Publisher................. Curt Bowen Co-Publisher............ Linda Bowen ADM’s free on-line publication, ADM E-Zine, continues to receive Copy Editor..................... Victoria Leigh an impressive number of downloads from around the globe. We Chief Staff Writer............ John Rawlings also want to welcome the many new subscribers and retail facilities Chief Photojournalist..... -
Shearwater Nerd 2 Manual
Operating Instructions MANUAL DOC 12501-MAN-REV G (2020-04-02) Shearwater NERD 2 — User Manual CONTENTS INTRODUCTION ...................................... 5 MODELS COVERED BY THIS MANUAL ...................... 6 MODES COVERED BY THIS MANUAL ....................... 6 FEATURE LIST .......................................... 7 BASIC OPERATION ...................................... 8 TURNING ON ....................................... 9 MOUNTING .......................................... 11 THE MAIN SCREEN .................................. 16 COLOUR CODING ...................................... 16 THE TOP ROW. 17 THE CENTER ROW ..................................... 21 CENTER ROW CONFIGURATION ......................... 22 THE BOTTOM ROW .................................... 24 INFO SCREENS ..................................... 27 COMPASS .......................................... 33 AIR INTEGRATION ................................... 37 WHAT IS AI? ...................................... 38 INSTALLING TRANSMITTER ........................ 40 PAIR THE TRANSMITTER ........................... 42 ADD AN AI DISPLAY TO THE MAIN SCREEN .......... 42 AI DISPLAYS ...................................... 44 HOW SAC AND GTR ARE CALCULATED .............. 48 OPERATING MODES ................................. 52 GAUGE MODE ....................................... 55 STOPWATCH .......................................... 55 RESETTABLE AVERAGE DEPTH .......................... 55 SEMI-CLOSED MODE ................................. 56 DECOMPRESSION CALCULATIONS ...................... -
Peregrine Manual
Operating Instructions Operating Instructions 8. Menus ........................................................... 31 Table of Contents 8�1� Menu Structure �����������������������������������������������������������������������������31 8 �2� Turn off ��������������������������������������������������������������������������������������������32 Table of Contents ��������������������������������������������������������������� 2 8�3� Select Gas (3 GasNx only) �������������������������������������������������������32 Conventions Used in this Manual ����������������������������������������������������� 3 8 �4� Dive Setup �������������������������������������������������������������������������������������33 1. Introduction ................................................. 4 8 �5� Dive Log ������������������������������������������������������������������������������������������36 1 �1� Notes on this manual ������������������������������������������������������������������� 5 9. System Setup Reference .......................... 38 1�2� Modes Covered by this Manual ������������������������������������������������ 5 9�1� Mode Setup �����������������������������������������������������������������������������������38 2. Basic Operation ........................................... 6 9 �2� Deco Setup ������������������������������������������������������������������������������������39 9 �3� Bottom Row ��������������������������������������������������������������������������������� 40 2 �1� Turning On ��������������������������������������������������������������������������������������� -
S16 WWI Submarine
By: James Rozzi Excerpt from ADM Issue 3 Illustration: C. Bowen www.AdvancedDiverMagazine.com arch 19th, 1918 the S-16 submarine was With the involvement of the United States in WW-II constructed by the Torpedo Boat Company the S-16 was recommissioned on December 2nd, Mof Bridgeport Connecticut. Launched on 1940. During World War two she would patrol the December 23rd, 1919 and commissioned on Decem- eastern coast of the United States with voyages to ber 17th,1920. She would serve under Lt. Commander Bermuda, St. Thomas and the Panama Canal zones. Andrew C. Bennett and left New London, Connecticut During the last stages of WW-II the S-16 was again on May 31st, 1921. Sailing through the Panama canal the decommissioned on October 4th, 1944 and struck S-16 traveled to California, Hawaii, Guam, the Philippine from the Navy list. Islands and reached her new base at Cavite, Luzon on April 3rd, 1945 in calm seas just off Key West, December 1st, 1921. For the next several years she Florida the S-16 was towed to her final resting place. would be placed on many active duties and patrolled the With all hatches open the scuttle plugs were pulled waters off China, Japan and the Philippines. and water rushed in, filling the inside compartments November 3rd, 1924 the S-16 was ordered back as the U.S. sailors scrambled up through the hatch- to the U.S. and for the next 12 years she was to patrol ways towards safety. With a blast of air from the open the California coast, Hawaii and the Panama canal. -
Operating Instruction Manual
OPERATING INSTRUCTION MANUAL Powerful Simple Reliable CONTENTS INTRODUCTION������������������������������������������������������������������������ 5 MODELSCOVEREDBYTHISMANUAL������������������������������������������������������5 FEATURELIST���������������������������������������������������������������������������������������������� 6 INSTALLINGSTRAPSORBUNGEECORD����������������������������� 7 BUNGEECORD���������������������������������������������������������������������������������������������8 TURNINGON����������������������������������������������������������������������������� 9 COLOURCODING����������������������������������������������������������������������������������������11 THETOPROW�������������������������������������������������������������������������������������������� 12 THECENTERROW������������������������������������������������������������������������������������� 16 CENTERROWCONFIGURATION������������������������������������������������������������� 17 THEBOTTOMROW������������������������������������������������������������������������������������ 18 INFOSCREENS������������������������������������������������������������������������21 COMPASS��������������������������������������������������������������������������������� 27 OPENCIRCUITMENUSTRUCTURE��������������������������������������������������������� 31 CLOSEDCIRCUIT(INT�PPO2)MENUSTRUCTURE������������������������������ 32 SIMPLEEXAMPLEDIVE��������������������������������������������������������� 33 COMPLEXEXAMPLEDIVE����������������������������������������������������34 -
Final Environmental Assessment for the Proposed Memorandum of Understanding with the County of Kaua‘I for the Nighttime Operation of Football Facilities in 2019
Final Environmental Assessment For the Proposed Memorandum of Understanding with the County of Kaua‘i For the Nighttime Operation of Football Facilities in 2019 Photo Credit: Dennis Fujimoto, The Garden Island Prepared by U.S. Fish & Wildlife Service 2 1. Introduction The U.S. Fish and Wildlife Service (Service) has been working with Kaua‘i County (County) to assist in the conservation and management of listed species. To address its impacts to listed seabirds, the County has been committed to participating in the Kaua‘i Seabird Habitat Conservation Plan (KSHCP), which has been under development since 2010. The County anticipates including its infrastructure and operations at football facilities, involving operation of high-intensity stadium lighting, in its application for a federal Incidental Take Permit (ITP) and a State Incidental Take License (ITL) associated with the KSHCP. However, the scope of the County’s operations (e.g., duration of lighting operations and facilities) under the Memorandum of Understanding (MOU) is only one aspect of, and very limited in comparison to, the scope of County facilities that will potentially be covered by the KSHCP. The County’s participation in the KSHCP would provide take coverage for the operation of lighting at football facilities, if an ITP is granted by the Service. However, the KSHCP timeline had been delayed in order to revise the document to include additional participants. Because the KSHCP was not yet completed or approved, the County requested on July 9, 2019, to enter in to a MOU with the Service again to conserve seabirds while allowing limited nighttime operation of football facilities during the 2019 seabird fledgling season. -
COVID-19 Safety Plan
2020-08-28 Page 1 of 9 COVID-19 Safety Plan Address: 13155 Delf Pl, Richmond, BC V6V 2A2 Purpose: Shearwater Research is committed to providing a safe and healthy workplace for all staff, visitors and contractors. In response to the COVID-19 pandemic, and by order of the Provincial Health Officer of British Columbia, this safety plan outlines the steps that Shearwater is taking to minimize the risk of COVID-19 exposure and transmission at its facility. Scope: This plan covers all Shearwater employees and visitors to the Shearwater Research head office and manufacturing facility at the address noted above. Background: Shearwater Research designs, tests, manufactures, and ships consumer electronics equipment from its facility in Richmond, British Columbia. This process involves the use of specialized equipment and facilities that necessitate the presence of an onsite workforce. COVID-19 is a highly communicable respiratory illness caused by the SARS-COV2 virus. Current evidence suggests that the primary mode of transmission of COVID-19 is through direct contact from respiratory droplets that have the potential to be propelled for varying distances. It is also possible that the SARS-COV2 virus can be transmitted by fomites - surfaces or objects that have viral particles on them. When contaminated surfaces are touched, the virus may enter the body when hands subsequently contact the nose, mouth, or eyes. (BC CDC, USA CDC, European CDC). Shearwater Research, Inc. ● 13155 Delf Place, Unit 250 ● Richmond, British Columbia ● Canada V6V 2A2 T: 604-669-9958 ● F: 604-681-4982 ● [email protected] ● www.shearwater.com 2020-08-28 Page 2 of 9 1.