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Chapter 2. Electrical Theory
Open Research Online The Open University’s repository of research publications and other research outputs Theoretical and Experimental Investigations Into Umbilical Cables for Communications Under the Sea Thesis How to cite: Mitchell, Andrew George Cairncross (2014). Theoretical and Experimental Investigations Into Umbilical Cables for Communications Under the Sea. PhD thesis The Open University. For guidance on citations see FAQs. c 2014 A.G.C. Mitchell Version: Version of Record Link(s) to article on publisher’s website: http://dx.doi.org/doi:10.21954/ou.ro.00009a49 Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online’s data policy on reuse of materials please consult the policies page. oro.open.ac.uk Thesis: Theoretical and Experimental Investigations Into Umbilical Cables for Communications Under the Sea Author: Andrew George Cairncross Mitchell BSc. (Hons.) Electronics and Microprocessor Engineering, University of Strathclyde, 1984 Thesis: Theoretical and Experimental Investigations Into Umbilical Cables for Communications Under the Sea Submitted for PhD, 30th September 2012 The Open University Faculty of Mathematics, Computing and Technology Thesis: Theoretical and Experimental Investigations Into Umbilical Cables for Communications Under the Sea Thesis: Theoretical and Experimental Investigations Into Umbilical Cables for Communications Under the Sea Abstract Continual advances are being made in the control and monitoring of subsea oil wells by the application of new technology for sensors, subsea processing and communications devices. With these advances, the demands on the subsea umbilical are constantly increasing with deployment lengths and depths growing and the quantity of controlled functions now greater than ever. -
New and Different to Come Your Way with Regard to Our Upcoming 2019 Sea Technology Buyers Guide/Directory
WATCH FOR SOMETHING NEW AND DIFFERENT TO COME YOUR WAY WITH REGARD TO OUR UPCOMING 2019 SEA TECHNOLOGY BUYERS GUIDE/DIRECTORY PROCEED TO MAGAZINE from Surface to Seabed Position / Heading Weather Monitoring Electromagnetic / Smart™ Depth Sensor Ultrasonic Speed Acoustic Communications (ACOMMs) ADCP / DVL Acoustic Communications (ACOMMs) Altimeter Side Scan Forward-looking Sonar Multibeam Sonar Collecting and connecting from surface to seafloor, AIRMAR and MSI push the boundaries of ultrasonic technology to deliver multi-sensor and array solutions that ensure the highest level of data integrity. Consult with our engineering teams to source or design the perfect combination of sensors to achieve your mission’s goals. AIRMAR.COM MSITRANSDUCERS.COM 2 ST | June 2018 www.sea-technology.com High Performance Cable Handling Systems RESEARCH INSTITUTIONS • MILITARY • GOVERNMENT AGENCIES # Custom and Standard Configurations # Mil-Spec, ABS, DNV and 46CFR Certifications # Easy to Operate and Maintain InterOcean Systems has been supplying specialized winches and cable handling systems for over 45 years. Let our experienced application engineers assist you in reviewing and developing performance specifications for your specialized application. Contact us to discuss your oceanographic winch and cable handling system needs! InterOcean Systems, LLC Tel. (858) 565-8400 • Fax (858) 268-9695 www.interoceansystems.com An affiliate of Delmar Systems, Inc. ANY APPLICATION • ANY LOAD • RUGGED AND RELIABLE www.sea-technology.com June 2018 | ST 3 The SeaBat T-series Modular, compact multibeam sonar family that grows with your business The unique modular design concept of the SeaBat T-series allows you to configure exactly the sonar survey system for the job at hand. -
Ss521-Ah-Pro-010 0910-Lp-103-2583 Revision 1
Downloaded from http://www.everyspec.com SS521-AH-PRO-010 0910-LP-103-2583 REVISION 1 TECHNICAL MANUAL U.S. NAVY DIVING UMBILICAL (UBA MK 20 AND MK 21) DESCRIPTION, MATERIALS, AND ASSEMBLY GPC, A Joint Venture Contract N00024-01-D-4018 SUPERSEDES: SS521-AH-PRO-010, APRIL 1997. DISTRIBUTION STATEMENT A: APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED. PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND. Downloaded from http://www.everyspec.com Downloaded from http://www.everyspec.com SS521-AH-PRO-010 0910-LP-103-2583 REVISION 1 TECHNICAL MANUAL U.S. NAVY DIVING UMBILICAL (UBA MK 20 AND MK 21) DESCRIPTION, MATERIALS, AND ASSEMBLY GPC, A Joint Venture Contract N00024-01-D-4018 SUPERSEDES: SS0521-AH-PR0-010, APRIL 1997. DISTRIBUTION STATEMENT A: APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED. PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND. 24 FEBRUARY 2005 Downloaded from http://www.everyspec.com SS521-AH-PRO-010 LIST OF EFFECTIVE PAGES Date of Issue: Original ...........................................................0.................................................................... April 15, 1997 Revision ..........................................................1.............................................................. February 24, 2005 Total number of pages in this publication is 75, consisting of the following: Page No. Change No. Title and A ...................................................................................................................................................1 Change -
"Aquarius" Undersea Habitat As an Analog for Long- Duration Space Flight
https://ntrs.nasa.gov/search.jsp?R=20110011365 2019-08-30T15:38:42+00:00Z Source of Acquisiti on NASA Jolmson Space Center The NEEMO Project: A Report on how NASA Utilizes the "Aquarius" Undersea Habitat as an Analog for Long- Duration Space Flight. Bill ToddlUnited Space Alliance Marc Reagan/NASA NEEMO Project Leads Spaceflight Training, NASAJJSC October, 2003 Abstract NEEMO is the NASA Extreme Environment Mission Operations, a cooperative project between NASA and the National Oceanic and Atmospheric Administration (NOAA). NEEMO was created and is managed by the Mission Operations Directorate at the Johnson Space Center in Houston, Texas. On the NOAA side, the National Undersea Research Center (NURC) in Key Largo, FL, with the help of the University of North Carolina at Wilmington, manages and operates the Aquarius Program. NEEMO was developed by astronaut training specialists to utilize an undersea research habitat as a multi-objective mission analog for long-duration space flight. Each mission was designed to expose astronauts to extreme environments for training purposes and to research crew behavior, habitability, and space analog life sciences. All of this was done much in the model of a space mission utilizing specific crew procedures, mission rules and timelines. Objectives of the missions were very diverse and contained many of the typical space mission type activities such as EV As (also known as extra vehicular activities), in-habitat science and research, and educational, public outreach, and media events. Five missions, dubbed NEEMO 1-5, were conducted between October 2001 and July 2003, the longest of which (NEEMO 5) lasted 14 days. -
Aquarius Fact Sheet
Fact Sheet: 2019 Designer: Perry Submarine Builders (Florida) Construction: Victoria Machine Works (Texas); start: 1986 | complete: 1987 Estimated construction cost: $5.5M Operational Timeline: St. Croix Deployment: Deployment in Salt River Canyon, St. Croix: 1987 Owner: NOAA Operator: Farleigh Dickenson University Interim Period: Recovered: 1990 by the University of North Carolina Wilmington Refurbished: 1990-1993 at North Carolina State Ports, Wilmington, NC Owner: NOAA Operator: University of North Carolina Wilmington Florida Keys Deployment: Initial deployment on Conch Reef, Florida Keys: 1993 (baseplate deployed 1992) Recovered for refurbishment: 1996-1998 - Harbor Branch Oceanographic Institution, Ft. Pierce, FL Redeployment on Conch Reef, Florida Keys: 1998 – present Owner: NOAA: 1986-2014; Florida International University: 2014 – present Operator: FDU: 1987-1989; UNCW: 1990-2012; Florida International University: 2013 - present Aquarius Siting: Conch Reef, Florida Keys (Florida Keys National Marine Sanctuary): Distance From Islamorada shore base: 15.4 km (8.5 nm) Distance offshore: 9 km (5.4 nm) Hatch depth/storage depth: 14 m (46 fsw) 35 psi Depth of bottom directly below Aquarius: 18 m (60 fsw) (updated: 09.15.19) Habitat Specifications: Aquarius weight: 82-ton double-lock pressure vessel Baseplate weight: 120 tons Dimensions: 14-meters long by 3-meters in diameter (46 ft x 10 ft) Crew: 4 scientists and 2 technicians Amenities: kitchen facilities that include a microwave, instant hot water dispenser, refrigerator, sink, dining -
NASA Extreme Environment Mission Operations Project (NEEMO) 15
National Aeronautics and Space Administration NASA Extreme Environment Mission Operations Project (NEEMO) 15 facts XV NASA possible t-shirt colors Space exploration presents many unique aquanauts, live in the world’s only undersea challenges to humans. In order to prepare laboratory, the Aquarius, located 3.5 miles astronauts for these extreme environments off the coast of Key Largo, Fla. in space, NASA engineers and scientists use comparable environments on Earth. Most underwater activities are One of the most extreme environments is accomplished by traditional scuba diving, the ocean. Not only is the ocean a harsh but divers are limited to specific amounts of and unpredictable environment, but it has time because of the risk of decompression many parallels to the challenges of living sickness (often called the “bends”). Based and working in space – particularly in on the depth and the amount of time spent destinations with little or no gravity, such as underwater, inert gases such as nitrogen asteroids. will build up in the human body. If a diver ascends out of the water too quickly, the The NASA Extreme Environment Mission gases that were absorbed can create Operations project, known as NEEMO, bubbles within the diver’s body as the sends groups of astronauts, engineers, surrounding pressure reduces. doctors and professional divers to live in an underwater habitat for up to three weeks A technique known as saturation diving at a time. These crew members, called allows people to live and work underwater for days or weeks at a time. After twenty four hours Station, which has served as the living quarters for at any underwater depth, the human body becomes Expedition crew members. -
Why an Underwater Habitat? Underwater Habitats Are Useful Because They Provide a Permanent Working Area for Aquanauts (Divers) W
[Type a quote from the document or the summary of an interesting point. You can position the text box anywhere in the document. Use the Drawing Tools tab to change the formatting of the pull quote text box.] Abstract What are the different types of Underwater Habitat and how do they differ? What is the Technology used in Underwater Habitats? Underwater habitats are useful study environments for researchers including marine biologists, There are three main types of underwater habitat that are distinguished from one psychologists studying the effects of prolonged periods of isolation in extreme environments, another by how they deal with water and air pressure. The first type, open To access an underwater lab, divers sometimes swim or take submersibles and physiologists studying how life adapts to different pressures. The technologies used and pressure, has an air pressure inside that is equal to the water pressure outside. which then dock with the facility. Shallow habitats may even be accessed by data gleaned from these studies have applications in space research, and in the future Decompression is required for divers returning to the surface from this type of climbing a ladder or taking an elevator. Deep-sea labs have been taken by crane underwater habitats can be used for industrial activity such as mining the deep sea, and facility, but they are able to go in and out of the laboratory on diving missions with from a boat and placed in the sea. In those labs deep underwater, it becomes expansion of these technologies extends humanity’s reach across earth’s biosphere into its relative ease, due to the fact that they don’t need to acclimate to differing dangerous to breathe in the same air as on the surface because the nitrogen oceans. -
Aerospace Engineering2
Aerospace Engineering BY TEAM 39402A Introduction to Aerospace Engineering For our career path, we chose aerospace engineer. Aerospace engineering consists of aircraft, spacecraft and satellite design and construction. Aerospace engineers also test prototypes. A prototype is a new invention that needs to be tested. We chose this career because we love space and adventure! NASA The main United States aerospace engineering company is the National Aeronautics and Space Administration, also known as NASA. This agency was created in 1958. NASA was the first space agency to get a human on the moon. Sent by NASA, Neil Armstrong, an astronaut and aeronautical engineer, was the first human to step on the moon in 1969. Now NASA is working on getting people back to the moon and going to Mars. Aircraft Aerospace engineering includes aircraft. There is one main difference between spacecraft and aircraft. Spacecraft are meant to break earth’s gravitational pull, where as aircraft are meant to stay in earth’s gravity. Aircraft also carry cargo and humans. The first airplane was created on December 17, 1903 by the Wright Brothers. Spacecraft Spacecraft are another part of aerospace engineering. There have been many space shuttles launched into orbit. Throughout time, rockets and space shuttles have evolved. Aerospace engineers have made rockets and shuttles much safer. Rockets and shuttles not only transport humans, but also cargo and rovers. Satellites The first satellite was developed by Russia and was named Sputnik1on October 4, 1957. Sputnik travelled at a speed of 18,000 miles per hour. It went around earth every 93 minutes. -
Amron 8225I-UM 2-Diver Air Control Systems User Manual REV
Instruction Manual for Amron International, Inc. Model 8225i & 8225iC-01 2-Diver Air Control Systems S/N: 1380 Aspen Way, Vista California 92081-8349 United States of America Phone: (760) 208-6500 Fax (760) 599-3857 email: [email protected] web: www.amronintl.com This manual and the information contained herein are provided for use as an operation and maintenance guide. No license or rights to manufacture, reproduce, or sell either the manual or articles described herein are given. Amron International, Inc. reserves the right to change specifications without notice. Copyright© 2021 Amron International, Inc. MODEL 8225i & 8225iC-01 USER MANUAL TABLE OF CONTENTS 1. INTRODUCTION AND SPECIFICATIONS ............................................................................................ 1 1.1 Introduction .................................................................................................................................... 1 1.2 Specifications Air Control .............................................................................................................. 2 1.3 Specifications Depth Monitoring (Pneumo) ................................................................................... 3 1.4 Specifications Communications (8225iC-01 Model Only) ............................................................. 4 1.5 Specifications Enclosure ............................................................................................................... 4 2. OPTIONS AND ACCESSORIES .......................................................................................................... -
'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………………………………………………………………………. -
Seeking Signals in The
$: t j ! Ij ~ ,l IOJ I ~ , I I I! 1I I 1 " Edited by Elizabeth N. Shor Layout by jo p. griffith June 1997 Published by: Marine Physical Laboratory ofthe Scripps Institution of Oceanography University of California, San Diego We gratefully acknowledge the following for use of their photographs in this publication: Christine Baldwin W. Robert Cherry Defense Nuclear Agency Fritz Goro William S. Hodgkiss Alan C. Jones MPL Photo Archives SIO Archives (UCSD) Eric T. Slater SIO Reference Series 97-5 ii Contents Introduction: How MPL Came To Be Betty Shor 1 Carl Eckart and the Marine Physical Laboratory Leonard Liebermann 6 Close Encounter of the Worst Kind Fred Fisher and Christine Baldwin 9 Early Days of Seismic and Magnetic Programs at MPL Arthur D. Raft 10 Recollections of Work at the Marine Physical Laboratory: A Non-Academic Point of View Dan Gibson 23 Capricorn Expedition, 1952 Alan C. Jones 39 Que Sera Sera R. J. Smith 42 A Beginning in Undersea Research Fred Noel Spiess ....... 46 The Value of MPL to the Navy Charles B. Bishop 51 The Outhouse Fred Fisher ....... 54 Exploring the Gulf of Alaska and Beyond George G. Shor, Jr 55 Chinook Expedition, 1956 Alan C. Jones 59 Operation HARDTACK I W. Robert Cherry 62 DELTIC and DIMUS, Two Siblings Victor C. Anderson 65 MPL and ARTEMIS Victor C. Anderson 71 Early Days of MPL Christine Baldwin 78 There's Always a Way Around the Rules George G. Shor, Jr 82 iii A Saga from Graduate Student to FLIP Fred Fisher 85 Anchoring FLIP in Deep Water Earl Bronson 95 Then There was SLIP Fred Fisher ...... -
Environmental Statement
Environmental Statement INFORMATION SHEET Project name: Beatrice Wind Farm Demonstrator Project DTI Project Reference: D/2875/2005 Type of project: Demonstration of offshore wind farm Undertaker name: Talisman Energy (UK) Limited Address: 163 Holburn Street Aberdeen AB10 6BZ Licensees/Owners: Talisman Energy (UK) Limited Anticipated commencement of works: May 2006 Short description of project: Proposed installation and operation of two stand- alone wind turbine generating units (WTGs) to provide electrical power to the Beatrice platforms. The WTGs will be supported on small steel jackets piled into the seabed, and will be 88m high with blades 63m long. The WTGs will be linked to the Beatrice AP platform by a buried umbilical containing the electrical cable. Date and reference number of any Beatrice Decommissioning Programme earlier Statement related to this RDBF/003/00006C-01 and 02 project: December 2004 Significant environmental impacts Underwater noise from piling identified: Potential interaction with birds at sea Statement prepared by: Talisman Energy (UK) Limited – 1– TALISMAN ENVIRONMENTAL STATEMENT ACKNOWLEDGEMENTS Talisman is grateful for the support, advice and comments received from all organisations and individuals during the consultation programme. Thanks are due to the Moray Firth Partnership for help in organising major stakeholder meetings, and to the University of Aberdeen Lighthouse Field Station for access to unpublished data. This Environmental Statement was prepared with support from BMT Cordah Limited. Design and production by The Big Picture. – 2– CONTENTS CONTENTS 1 NON-TECHNICAL SUMMARY . .9 1.1 Introduction . .9 1.2 Description of proposed project . .10 1.3 Environmental setting for the proposed WTGs . .11 1.4 Consultation programme .