Ultrasound for Bubble Detection
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Annual Report 2019
INTERNATIONAL FEDERATION OF SPORT CLIMBING ANNUAL REPORT 2019 www.ifsc-climbing.org CONTENT Paraclimbing World Championships ----58 President’s Message -------------------- 4 Olympic Qualifying Event ------------ 62 Secretary General’s Message ------------ 6 Youth World Championships-----------64 Inside the IFSC ------------------------- 8 ANOC Beach Games ---------------- 66 WHAT IS THE IFSC?--------------------- 8 China Open ------------------------ 67 MAKING HISTORY --------------------- 8 SPORT DEPARTMENT DEVELOPMENTS ---- 68 THE STRATEGIC PLAN------------------- 10 A 2019 Meetings -------------------- 68 A N WOMEN IN THE IFSC-------------------- 12 Official Sport Equipment ------------ 74 N N N New Result System ---------------- 77 U GOVERNANCE ------------------------ 14 U A A EXECUTIVE BOARD--------------------- 16 L Corporate Activities ------------------- 78 L STAFF -------------------------------20 MARKETING & COMMUNICATIONS ------- 78 2 NEW HEADQUARTERS ------------------24 Marketing Strategy ---------------- 78 3 NATIONAL FEDERATIONS----------------26 Synca Dentsu --------------------- 79 R Sponsors------------------------- 80 R E TRIBUTE TO MR. YURIY SKURLATOV -------28 E P Broadcasters---------------------- 82 P COMMISSIONS------------------------30 O Monthly Highlights Shows ----------- 86 O R R Our Sport ------------------------------42 Digital Marketing ------------------ 90 T T NUMBER OF CLIMBERS WORLWIDE ------- 42 Media --------------------------- 94 Continental Qualifying Events OLYMPIC GAMES ---------------------- -
Full Paper/Talk Deep Stops and Shallow Stops – Fact and Fancy
Full Paper/Talk Deep Stops and Shallow Stops – Fact and Fancy B.R. Wienke1 and T.R. O’Leary2 1 C&C Dive Team Ldr, Program Manager Computational Physics, LANL, MS D490, Los Alamos, NM 87545 [email protected] 2 Director, NAUI Technical Diving Operations, 33256 State Rd 100, South Padre Island, TX, 78597 Abstract The question of deep stops and shallow stops is interesting and fraught with controversy in diving circles and operations, training, exploration and scientific endeavors. Plus frought with some misunderstanding which is understandable as the issues are complex. We therefore attempt a short history of deep and shallow stops, physical aspects, staging differences, diving tests, models with data correlations and data banks with user statistics and DCS outcomes as diver amplification. Pros and cons of both deep stop and shallow stop staging are presented. Misfacts are righted when appropriate. Chamber, wet and Doppler tests are contrasted. A compendium of Training Agency Standards regarding deep and shallow stops is included. Dive software is also detailed. Some commercial diving operations are discussed. A short tabulation of dive computer and software algorithms is given. From diving data, tests, DCS outcomes and field usage, we conclude that both deep stops and shallow stops are safely employed in recreational and technical diving. That is a good thing but choose your deco wisely and know why. Keywords: computational models, decompression staging, profile data, risk, statistical correlations, tests Acronyms and Nomenclature ANDI: Association of Nitrox Diving Instructors. BM: bubble phase model dividing the body into tissue compartments with halftimes that are coupled to inert gas diffusion across bubble film surfaces of exponential size distribution constrained in cumulative growth by a volume limit point. -
Observation of Elliptically Polarized Light from Total Internal Reflection in Bubbles
Observation of elliptically polarized light from total internal reflection in bubbles Item Type Article Authors Miller, Sawyer; Ding, Yitian; Jiang, Linan; Tu, Xingzhou; Pau, Stanley Citation Miller, S., Ding, Y., Jiang, L. et al. Observation of elliptically polarized light from total internal reflection in bubbles. Sci Rep 10, 8725 (2020). https://doi.org/10.1038/s41598-020-65410-5 DOI 10.1038/s41598-020-65410-5 Publisher NATURE PUBLISHING GROUP Journal SCIENTIFIC REPORTS Rights Copyright © The Author(s) 2020. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License. Download date 29/09/2021 02:08:57 Item License https://creativecommons.org/licenses/by/4.0/ Version Final published version Link to Item http://hdl.handle.net/10150/641865 www.nature.com/scientificreports OPEN Observation of elliptically polarized light from total internal refection in bubbles Sawyer Miller1,2 ✉ , Yitian Ding1,2, Linan Jiang1, Xingzhou Tu1 & Stanley Pau1 ✉ Bubbles are ubiquitous in the natural environment, where diferent substances and phases of the same substance forms globules due to diferences in pressure and surface tension. Total internal refection occurs at the interface of a bubble, where light travels from the higher refractive index material outside a bubble to the lower index material inside a bubble at appropriate angles of incidence, which can lead to a phase shift in the refected light. Linearly polarized skylight can be converted to elliptically polarized light with efciency up to 53% by single scattering from the water-air interface. Total internal refection from air bubble in water is one of the few sources of elliptical polarization in the natural world. -
Air-Sea Gas Exchange
Air-Sea Gas Exchange OCN 623 – Chemical Oceanography 17 March 2015 Readings: Libes, Chapter 6 – pp. 158 -168 Wanninkhof et al. (2009) Advances in quantifying air-sea gas exchange and environmental forcing, Annual Reviews of Marine Science © 2015 David Ho and Frank Sansone Overview • Introduction • Theory/models of gas exchange • Mechanisms/lab studies of gas exchange • Field measurements • Parameterizations Why do we care about air-water gas exchange? . Globally, to understand cycling of biogeochemically important trace gases (e.g., CO2, DMS, CH4, N2O, CH3Br) . Regionally and locally . To understand indicators of water quality (e.g., dissolved O2) . To predict evasion rates of volatile pollutants (e.g., VOCs, PAHs, PCBs) Factors Influencing Air-water Transfer of Mass, Momentum, Heat From SOLAS Science Plan and Implementation Strategy Basic flux equation Concentration gradient Flux (mol cm-3) (mol cm-2 s-1) “driving force” Gas transfer velocity (cm s-1) “resistance” k: Gas transfer velocity, piston velocity, gas exchange coefficient Cw: Concentration in water near the surface Ca: Concentration in air near the surface α: Ostwald solubility coefficient (temp-compensated Bunsen coeff) Basic conceptual model Turbulent atmosphere C Atmosphere a Laminar Stagnant Cas Boundary Layer zFilm Cws (transport by Ocean molecular diffusion) Cw Turbulent bulk liquid F = k(Cw-αCa) Air/water side resistance Magnitude of typical Ostwald solubility coefficients He ≈ 0.01 Water-side resistance O2 ≈ 0.03 CO2 ≈ 0.7 DMS ≈ 10 Air- and water-side resistance CH3Br -
Deadly Acute Decompression Sickness in Risso's Dolphins
www.nature.com/scientificreports OPEN Deadly acute Decompression Sickness in Risso’s dolphins A. Fernández, E. Sierra, J. Díaz-Delgado, S. Sacchini , Y. Sánchez-Paz, C. Suárez-Santana, M. Arregui, M. Arbelo & Y. Bernaldo de Quirós Received: 19 April 2017 Diving air-breathing vertebrates have long been considered protected against decompression sickness Accepted: 5 October 2017 (DCS) through anatomical, physiological, and behavioural adaptations. However, an acute systemic gas Published: xx xx xxxx and fat embolic syndrome similar to DCS in human divers was described in beaked whales that stranded in temporal and spatial association with military exercises involving high-powered sonar. More recently, DCS has been diagnosed in bycaught sea turtles. Both cases were linked to human activities. Two Risso’s dolphin (Grampus griseus) out of 493 necropsied cetaceans stranded in the Canary Islands in a 16-year period (2000–2015), had a severe acute decompression sickness supported by pathological fndings and gas analysis. Deadly systemic, infammatory, infectious, or neoplastic diseases, ship collision, military sonar, fsheries interaction or other type of lethal inducing associated trauma were ruled out. Struggling with a squid during hunting is discussed as the most likely cause of DCS. Pathologies related to efects of changes in pressure are well known among human divers. Decompression sick- ness (DCS) is a syndrome related to the formation of gas bubbles in blood and/or tissues when the sum of the dissolved gas tensions exceeds the local absolute pressure. Gas bubbles may have biochemical efects and disrupt the tissues or occlude the vessels with clinical and pathological signs and, in certain cases, death1. -
Dive Theory Guide
DIVE THEORY STUDY GUIDE by Rod Abbotson CD69259 © 2010 Dive Aqaba Guidelines for studying: Study each area in order as the theory from one subject is used to build upon the theory in the next subject. When you have completed a subject, take tests and exams in that subject to make sure you understand everything before moving on. If you try to jump around or don’t completely understand something; this can lead to gaps in your knowledge. You need to apply the knowledge in earlier sections to understand the concepts in later sections... If you study this way you will retain all of the information and you will have no problems with any PADI dive theory exams you may take in the future. Before completing the section on decompression theory and the RDP make sure you are thoroughly familiar with the RDP, both Wheel and table versions. Use the appropriate instructions for use guides which come with the product. Contents Section One PHYSICS ………………………………………………page 2 Section Two PHYSIOLOGY………………………………………….page 11 Section Three DECOMPRESSION THEORY & THE RDP….……..page 21 Section Four EQUIPMENT……………………………………………page 27 Section Five SKILLS & ENVIRONMENT…………………………...page 36 PHYSICS SECTION ONE Light: The speed of light changes as it passes through different things such as air, glass and water. This affects the way we see things underwater with a diving mask. As the light passes through the glass of the mask and the air space, the difference in speed causes the light rays to bend; this is called refraction. To the diver wearing a normal diving mask objects appear to be larger and closer than they actually are. -
A Monte Carlo Ray Tracing Study of Polarized Light Propagation in Liquid Foams
ARTICLE IN PRESS Journal of Quantitative Spectroscopy & Radiative Transfer 104 (2007) 277–287 www.elsevier.com/locate/jqsrt A Monte Carlo ray tracing study of polarized light propagation in liquid foams J.N. Swamya,Ã, Czarena Crofchecka, M. Pinar Mengu¨c- b,ÃÃ aDepartment of Biosystems and Agricultural Engineering, 128 C E Barnhart Building, University of Kentucky, Lexington, KY 40546, USA bDepartment of Mechanical Engineering, 269 Ralph G. Anderson Building, University of Kentucky, Lexington, KY 40506, USA Received 10 July 2006; accepted 28 July 2006 Abstract A Monte Carlo ray tracing scheme is used to investigate the propagation of an incident collimated beam of polarized light in liquid foams. Cellular structures like foam are expected to change the polarization characteristics due to multiple scattering events, where such changes can be used to monitor foam dynamics. A statistical model utilizing some of the recent developments in foam physics is coupled with a vector Monte Carlo scheme to compute the depolarization ratios via Stokes–Mueller formalism. For the simulations, the incident Stokes vector corresponding to horizontal linear polarization and right circular polarization are considered. It is observed that bubble size and the polydispersity parameter have a significant effect on the depolarization ratios. This is partially owing to the number of total internal reflection events in the Plateau borders. The results are discussed in terms of applicability of polarized light as a diagnostic tool for monitoring foams. r 2006 Elsevier Ltd. All rights reserved. Keywords: Polarized light scattering; Liquid foams; Bubble size; Polydispersity; Foam characterization; Foam diagnostics; Cellular structures 1. Introduction Liquid foams are random packing of bubbles in a small amount of immiscible liquid [1] and can be found in a wide variety of applications. -
Darling Marine Center Local Shore Diving Guide
Darling Marine Center Local Shore Diving Guide University of Maine Scientific Diving Program Table of Contents Recommended Equipment List……………………………………………………………..2 Local Information…………………………………………………………………………...3 Recompression Chambers…………………………………………………………………..3 General Emergency Action Plan…………………………………………………………….3-4 Documentation……………………………………………………………………………….4 Dive Sites DMC Pier……………………………………………………………………………5-6 Kresge Point………………………………………………………………………….7-8 Lowes Cove Mooring Field…………………………………………………………..9-10 Pemaquid Point……………………………………………………………………….11-12 Rachel Carson Preserve………………………………………………………………13-15 Sand Cove…………………………………………………………………………….16-17 Thread of life…………………………………………………………………………18-19 Appendix………………………………………………………………………………………20 1 Recommended Equipment List • Dive flag • DAN oxygen and first aid kit • Spare tank • Extra weights • Save-a-dive kit • Dive slate/underwater paper (recording purposes) Recommended Personal Equipment • Exposure suit- minimum7mm wetsuit o Booties o Gloves o Hood o Wool socks • Fins • BCD • Mask, Snorkel • Weights • Surface marker buoy • Dive watch • Dive computer • Knife/cutting tool 2 Local Information: Fire, Medical, Police 911 Emergency Dispatch Lincoln County Emergency (207)563-3200 Center Nearest Hospital Lincoln Health-Miles (207)563-1234 Campus USCG Boothbay (207)633-2661 Divers Alert Network Emergency hotline 1-919-684-9111 Medical information 1-919-684-2948 Diving Safety Officer Christopher Rigaud (207)563-8273 Recompression Chambers: In the event of a diving accident, call 911 and facilitate transport of victim to a hospital or medical facility. The medical staff will determine whether hyperbaric treatment is needed. St. Mary’s Regional Lewiston, ME (207)777-8331 Will NOT accept Medical Center divers after 4:30pm St. Joseph’s Hospital Bangor, ME (207)262-1550 Typically, available after hours Wound and Beverly, MA (978)921-1210 Hyperbaric Medicine Basic Emergency Information: See Appendix for the approved Emergency Action Plan by the UMaine DCB. -
The Synergistic Effect of Focused Ultrasound and Biophotonics to Overcome the Barrier of Light Transmittance in Biological Tissue
Photodiagnosis and Photodynamic Therapy 33 (2021) 102173 Contents lists available at ScienceDirect Photodiagnosis and Photodynamic Therapy journal homepage: www.elsevier.com/locate/pdpdt The synergistic effect of focused ultrasound and biophotonics to overcome the barrier of light transmittance in biological tissue Jaehyuk Kim a,b, Jaewoo Shin c, Chanho Kong c, Sung-Ho Lee a, Won Seok Chang c, Seung Hee Han a,d,* a Molecular Imaging, Princess Margaret Cancer Centre, Toronto, ON, Canada b Health and Medical Equipment, Samsung Electronics Co. Ltd., Suwon, Republic of Korea c Department of Neurosurgery, Brain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea d Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada ARTICLE INFO ABSTRACT Keywords: Optical technology is a tool to diagnose and treat human diseases. Shallow penetration depth caused by the high Light transmission enhancement optical scattering nature of biological tissues is a significantobstacle to utilizing light in the biomedical field. In Focused Ultrasound this paper, light transmission enhancement in the rat brain induced by focused ultrasound (FUS) was observed Air bubble and the cause of observed enhancement was analyzed. Both air bubbles and mechanical deformation generated Mechanical deformation by FUS were cited as the cause. The Monte Carlo simulation was performed to investigate effects on transmission Rat brain by air bubbles and finiteelement method was also used to describe mechanical deformation induced by motions of acoustic particles. As a result, it was found that the mechanical deformation was more suitable to describe the transmission change according to the FUS pulse observed in the experiment. 1. -
Entertainment Venues Still Waiting on License Fees
Volume 11 Issue 21 News Desk - Tel: 076-236555 May 22 - 28, 2004 Daily news at www.phuketgazette.net 20 Baht The Gazette is published in association with Entertainment venues still ICEC focus on waiting on IN THIS ISSUE license fees NEWS: Immigration website spins confusion; Baby dug- By Dhirarat Boonkongsaen ong improving; Seaweed to Koh Maphrao wash up on menus? PHUKET CITY: Wisut Romin, Pages 2 & 3 By Sangkhae Leelanapaporn Deputy Secretary of the Phuket INSIDE STORY: Year-round Provincial Administration Office dog day afternoons for the PHUKET: Phuket Governor (PPAO), told the Gazette on May hounds at the pound. Udomsak Usawarangkura has 14 that he is still waiting for the Pages 4 & 5 suggested Koh Maphrao as an al- Ministry of Interior to set the ternative location for the pro- fees for entertainment licenses, AROUND THE ISLAND: How to posed Phuket International Con- despite 50% of renewals having say it sincerely – with artifi- vention and Exhibition Center already been granted. cial flowers. Page 6 (ICEC), as a way to break a stale- More than 170 licensees in AROUND THE REGION: Krabi mate between the government in Phuket are waiting to see just enjoys this sporting life; Fare- Bangkok and local people over how much they will have to pay. well Uncle Loong. Page 8 where the mega-project should Speculation is rife that li- be sited. censes – valid from May 12 to PEOPLE: Another face and an- Speaking with the Gazette December 31 – may cost as much other life. Pages 10 & 11 at his office, Gov Udomsak said as 50,000 baht apiece. -
ASBS Newsletter Will Recall That the Collaboration and Integration
Newsletter No. 174 March 2018 Price: $5.00 AUSTRALASIAN SYSTEMATIC BOTANY SOCIETY INCORPORATED Council President Vice President Darren Crayn Daniel Murphy Australian Tropical Herbarium (ATH) Royal Botanic Gardens Victoria James Cook University, Cairns Campus Birdwood Avenue PO Box 6811, Cairns Qld 4870 Melbourne, Vic. 3004 Australia Australia Tel: (+617)/(07) 4232 1859 Tel: (+613)/(03) 9252 2377 Email: [email protected] Email: [email protected] Secretary Treasurer Jennifer Tate Matt Renner Institute of Fundamental Sciences Royal Botanic Garden Sydney Massey University Mrs Macquaries Road Private Bag 11222, Palmerston North 4442 Sydney NSW 2000 New Zealand Australia Tel: (+646)/(6) 356- 099 ext. 84718 Tel: (+61)/(0) 415 343 508 Email: [email protected] Email: [email protected] Councillor Councillor Ryonen Butcher Heidi Meudt Western Australian Herbarium Museum of New Zealand Te Papa Tongarewa Locked Bag 104 PO Box 467, Cable St Bentley Delivery Centre WA 6983 Wellington 6140, New Zealand Australia Tel: (+644)/(4) 381 7127 Tel: (+618)/(08) 9219 9136 Email: [email protected] Email: [email protected] Other constitutional bodies Hansjörg Eichler Research Committee Affiliate Society David Glenny Papua New Guinea Botanical Society Sarah Mathews Heidi Meudt Joanne Birch Advisory Standing Committees Katharina Schulte Financial Murray Henwood Patrick Brownsey Chair: Dan Murphy, Vice President, ex officio David Cantrill Grant application closing dates Bob Hill Hansjörg Eichler Research Fund: th th Ad hoc -
Biology, Ecology and Ecophysiology of the Box Jellyfish Biology, Ecology and Ecophysiology of the Box Jellyfishcarybdea Marsupialis (Cnidaria: Cubozoa)
Biology, ecology and ecophysiology of the box M. J. ACEVEDO jellyfish Carybdea marsupialis (Cnidaria: Cubozoa) Carybdea marsupialis MELISSA J. ACEVEDO DUDLEY PhD Thesis September 2016 Biology, ecology and ecophysiology of the box jellyfish Biology, ecology and ecophysiology of the box jellyfishCarybdea marsupialis (Cnidaria: Cubozoa) Biologia, ecologia i ecofisiologia de la cubomedusa Carybdea marsupialis (Cnidaria: Cubozoa) Melissa Judith Acevedo Dudley Memòria presentada per optar al grau de Doctor per la Universitat Politècnica de Catalunya (UPC), Programa de Doctorat en Ciències del Mar (RD 99/2011). Tesi realitzada a l’Institut de Ciències del Mar (CSIC). Director: Dr. Albert Calbet (ICM-CSIC) Co-directora: Dra. Verónica Fuentes (ICM-CSIC) Tutor/Ponent: Dr. Xavier Gironella (UPC) Barcelona – Setembre 2016 The author has been financed by a FI-DGR pre-doctoral fellowship (AGAUR, Generalitat de Catalunya). The research presented in this thesis has been carried out in the framework of the LIFE CUBOMED project (LIFE08 NAT/ES/0064). The design in the cover is a modification of an original drawing by Ernesto Azzurro. “There is always an open book for all eyes: nature” Jean Jacques Rousseau “The growth of human populations is exerting an unbearable pressure on natural systems that, obviously, are on the edge of collapse […] the principles we invented to regulate our activities (economy, with its infinite growth) are in conflict with natural principles (ecology, with the finiteness of natural systems) […] Jellyfish are just a symptom of this