The Talking Drum: an Inquiry Into the Reach of a Traditional Mode of Communication
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A Guide to Radio Communications Standards for Emergency Responders
A GUIDE TO RADIO COMMUNICATIONS STANDARDS FOR EMERGENCY RESPONDERS Prepared Under United Nations Development Programme (UNDP) and the European Commission Humanitarian Office (ECHO) Through the Disaster Preparedness Programme (DIPECHO) Regional Initiative in Disaster Risk Reduction March, 2010 Maputo - Mozambique GUIDE TO RADIO COMMUNICATIONS STANDARDS FOR EMERGENCY RESPONDERS GUIDE TO RADIO COMMUNICATIONS STANDARDS FOR EMERGENCY RESPONDERS Table of Contents Introductory Remarks and Acknowledgments 5 Communication Operations and Procedures 6 1. Communications in Emergencies ...................................6 The Role of the Radio Telephone Operator (RTO)...........................7 Description of Duties ..............................................................................7 Radio Operator Logs................................................................................9 Radio Logs..................................................................................................9 Programming Radios............................................................................10 Care of Equipment and Operator Maintenance...........................10 Solar Panels..............................................................................................10 Types of Radios.......................................................................................11 The HF Digital E-mail.............................................................................12 Improved Communication Technologies......................................12 -
Gallery : the Art Magazine from Gallery Delta
Sponsoring art for Zimbabwe Gallery Delta, the publisher and the editor gratefully acknowledge the following sponsors who have contributed to the production of this issue of Gallery magazine: APEX CDRPORATIDN OF ZIMBABWE LIMITED Joerg Sorgenicht NDORO ^RISTON Contents December 1998 2 Artnotes 3 New forms for old : Dak" Art 1998 by Derek Huggins 10 Charting interior and exterior landscapes : Hilary Kashiri's recent paintings by Gillian Wright 16 'A Changed World" : the British Council's sculpture exhibition by Margaret Garlake 21 Anthills, moths, drawing by Toni Crabb 24 Fasoni Sibanda : a tribute 25 Forthcoming events and exhibitions Front Cover: TiehenaDagnogo, Mossi Km, 1997, 170 x 104cm, mixed media Back Cover: Tiebena Dagnogo. Porte Celeste, 1997, 156 x 85cm, mixed media Left: Tapfuma Gutsa. /// Winds. 1996-7, 160 x 50 x 62cm, serpentine, bone & horn © Gallery Publications ISSN 1361 - 1574 Publisher: Derek Huggins. Editor: Barbara Murray. Designer: Myrtle Mallis. Origination: Crystal Graphics. Printing: A.W. Bardwell & Co. Contents are the copyright of Gallery Publications and may not be reproduced in any manner or form without permission. The views and opinions expressed in this magazine are those of the writers themselves and not necessarily those of Gallery Delta. Gallery Publications, the publisher or the editor Articles and Letters are invited for submission. Please address them to The Editor Subscriptions from Gallery Publications, c/o Gallery Delta. 110 Livingstone Avenue, P.O. Box UA 373. Union Avenue, Harare. Zimbabwe. Tel & Fa.x: (263-4) 792135, e-mail: <[email protected]> Artnotes A surprising fact: Zimbabwean artworks are Hivos give support to many areas of And now, thanks to Hivos. -
African Drumming in Drum Circles by Robert J
African Drumming in Drum Circles By Robert J. Damm Although there is a clear distinction between African drum ensembles that learn a repertoire of traditional dance rhythms of West Africa and a drum circle that plays primarily freestyle, in-the-moment music, there are times when it might be valuable to share African drumming concepts in a drum circle. In his 2011 Percussive Notes article “Interactive Drumming: Using the power of rhythm to unite and inspire,” Kalani defined drum circles, drum ensembles, and drum classes. Drum circles are “improvisational experiences, aimed at having fun in an inclusive setting. They don’t require of the participants any specific musical knowledge or skills, and the music is co-created in the moment. The main idea is that anyone is free to join and express himself or herself in any way that positively contributes to the music.” By contrast, drum classes are “a means to learn musical skills. The goal is to develop one’s drumming skills in order to enhance one’s enjoyment and appreciation of music. Students often start with classes and then move on to join ensembles, thereby further developing their skills.” Drum ensembles are “often organized around specific musical genres, such as contemporary or folkloric music of a specific culture” (Kalani, p. 72). Robert Damm: It may be beneficial for a drum circle facilitator to introduce elements of African music for the sake of enhancing the musical skills, cultural knowledge, and social experience of the participants. PERCUSSIVE NOTES 8 JULY 2017 PERCUSSIVE NOTES 9 JULY 2017 cknowledging these distinctions, it may be beneficial for a drum circle facilitator to introduce elements of African music (culturally specific rhythms, processes, and concepts) for the sake of enhancing the musi- cal skills, cultural knowledge, and social experience Aof the participants in a drum circle. -
Unit – 1 Overview of Optical Fiber Communication
www.getmyuni.com Optical Fiber Communication 10EC72 Unit – 1 Overview of Optical Fiber communication 1. Historical Development Fiber optics deals with study of propagation of light through transparent dielectric waveguides. The fiber optics are used for transmission of data from point to point location. Fiber optic systems currently used most extensively as the transmission line between terrestrial hardwired systems. The carrier frequencies used in conventional systems had the limitations in handling the volume and rate of the data transmission. The greater the carrier frequency larger the available bandwidth and information carrying capacity. First generation The first generation of light wave systems uses GaAs semiconductor laser and operating region was near 0.8 μm. Other specifications of this generation are as under: i) Bit rate : 45 Mb/s ii) Repeater spacing : 10 km Second generation i) Bit rate: 100 Mb/s to 1.7 Gb/s ii) Repeater spacing: 50 km iii) Operation wavelength: 1.3 μm iv) Semiconductor: In GaAsP Third generation i) Bit rate : 10 Gb/s ii) Repeater spacing: 100 km iii) Operating wavelength: 1.55 μm Fourth generation Fourth generation uses WDM technique. i) Bit rate: 10 Tb/s ii) Repeater spacing: > 10,000 km Iii) Operating wavelength: 1.45 to 1.62 μm Page 5 www.getmyuni.com Optical Fiber Communication 10EC72 Fifth generation Fifth generation uses Roman amplification technique and optical solitiors. i) Bit rate: 40 - 160 Gb/s ii) Repeater spacing: 24000 km - 35000 km iii) Operating wavelength: 1.53 to 1.57 μm Need of fiber optic communication Fiber optic communication system has emerged as most important communication system. -
AN INTRODUCTION to DGPS DXING V2.3
AN INTRODUCTION TO DGPS DXING: Version 2.3 January 2019 Since this guide first appeared around eighteen years ago, then bearing the title of “ DGPS, QRM OR A NEW FORM OF DX?” it has undergone a number of updates and has been renamed as “ AN INTRODUCTION TO DGPS DXING ”. This has appeared in several versions, with a few minor updates to various listings etc. It is now 2019, and the DGPS DXing hobby has become well established and a regular pastime for many DXers, the article has been updated at regular intervals, but the title remains the same, and hopefully the contents are now more appropriate for DGPS DXers (and newcomers to this mode) in the current period. What is a DGPS Beacon? Differential GPS systems are used to help overcome the limitations in the accuracy of conventional GPS systems. By using a fixed reference point as a comparison and comparing this with positions obtained from a conventional GPS receiver, a more precise and accurate reading can be obtained by the user. A hand-held GPS receiver may be fine if you are on land, but if you're a mariner trying to navigate your way around a rocky Coast in poor weather conditions, an error of 50 feet or more can be life threatening. Of course, that is a greatly simplified summary of what is a complex system, and for most beacon enthusiasts, all you will be aware of is hearing a sound that resembles a RTTY/Navtex signal and appears at various points on the LF Bands band between 283.5 and 325 kHz. -
Know Your Alerts and Warnings
KNOW YOUR ALERTS AND WARNINGS Receiving timely information about weather conditions or other emergency events can make all the difference in knowing when to take action to be safe. Local police and fire departments, emergency managers, the National Weather Service (NWS), the Federal Emergency Management Agency (FEMA), the Federal Communications Commission (FCC), the National Oceanic and Atmospheric Administration (NOAA), and private industry are working together to make sure you can receive alerts and warnings quickly through several different technologies no matter where you are–at home, at school, at work, or in the community. For those with access and functional needs, many messages are TTY/TDD compatible and many devices have accessible accommodations. Review this fact sheet to make sure you will receive critical information as soon as possible so you can take action to be safe. Be sure to share this information with your family, friends, and colleagues. And remember to keep extra batteries for your mobile phone or radio in a safe place or consider purchasing other back-up power supplies such as a car, solar-powered, or hand crank charger. Organized by FEMA, the Integrated Public Alert and Warning System (IPAWS) is the Nation’s alert and warning infrastructure. IPAWS It provides an effective way to alert and warn the public about INTEGRATED emergencies using the Emergency Alert System (EAS), Wireless PUBLIC ALERT AND Emergency Alerts (WEA), NOAA Weather Radio All Hazards, WARNING SYSTEM and other public alerting systems from a single interface. IPAWS is used to send notifications for three alert categories— Presidential, AMBER, and Imminent Threat. -
Distributed Algorithm Primitives: Broadcast & Agreement
Fault-Tolerant Computer System Design ECE 60872/CS 590001 Topic 6: Distributed Algorithm Primitives: Broadcast & Agreement Saurabh Bagchi ECE/CS Purdue University ECE 60872/CS 590001 1 Outline Specific issues in design and implementation of networked/distributed systems Broadcast protocols Agreement protocols Commit protocols ECE 60872/CS 590001 2 1 Networked/Distributed Systems Key Questions How do we integrate components (often heterogeneous) with varying fault tolerance characteristics into a coherent high availability networked system? How do you guarantee reliable communication (message delivery)? How do you synchronize actions of dispersed processors and processes? How do you ensure that replicated services with independently executing components have a consistent view of the overall system? How do you contain errors (or achieve fail-silent behavior of components) to prevent error propagation? How do you adapt the system architecture to changes in availability requirements of the application(s)? ECE 60872/CS 590001 3 Failure Classification Necessity to cope with machine (node), process, and network failures A process A process stops A process A process stops prematurely prematurely or responds response and does nothing intermittently incorrectly: is functionally from that point on omits to send/ either output A process correct but Crash receive messages or the state behaves untimely randomly or Omission transition is incorrect arbitrarily Timing Incorrect Computation Byzantine (malicious) ECE 60872/CS 590001 4 2 What Do -
Beidou Short-Message Satellite Resource Allocation Algorithm Based on Deep Reinforcement Learning
entropy Article BeiDou Short-Message Satellite Resource Allocation Algorithm Based on Deep Reinforcement Learning Kaiwen Xia 1, Jing Feng 1,*, Chao Yan 1,2 and Chaofan Duan 1 1 Institute of Meteorology and Oceanography, National University of Defense Technology, Changsha 410005, China; [email protected] (K.X.); [email protected] (C.Y.); [email protected] (C.D.) 2 Basic Department, Nanjing Tech University Pujiang Institute, Nanjing 211112, China * Correspondence: [email protected] Abstract: The comprehensively completed BDS-3 short-message communication system, known as the short-message satellite communication system (SMSCS), will be widely used in traditional blind communication areas in the future. However, short-message processing resources for short-message satellites are relatively scarce. To improve the resource utilization of satellite systems and ensure the service quality of the short-message terminal is adequate, it is necessary to allocate and schedule short-message satellite processing resources in a multi-satellite coverage area. In order to solve the above problems, a short-message satellite resource allocation algorithm based on deep reinforcement learning (DRL-SRA) is proposed. First of all, using the characteristics of the SMSCS, a multi-objective joint optimization satellite resource allocation model is established to reduce short-message terminal path transmission loss, and achieve satellite load balancing and an adequate quality of service. Then, the number of input data dimensions is reduced using the region division strategy and a feature extraction network. The continuous spatial state is parameterized with a deep reinforcement learning algorithm based on the deep deterministic policy gradient (DDPG) framework. The simulation Citation: Xia, K.; Feng, J.; Yan, C.; results show that the proposed algorithm can reduce the transmission loss of the short-message Duan, C. -
Ethics and Operating Procedures for the Radio Amateur 1
EETTHHIICCSS AANNDD OOPPEERRAATTIINNGG PPRROOCCEEDDUURREESS FFOORR TTHHEE RRAADDIIOO AAMMAATTEEUURR Edition 3 (June 2010) By John Devoldere, ON4UN and Mark Demeuleneere, ON4WW Proof reading and corrections by Bob Whelan, G3PJT Ethics and Operating Procedures for the Radio Amateur 1 PowerPoint version: A PowerPoint presentation version of this document is also available. Both documents can be downloaded in various languages from: http://www.ham-operating-ethics.org The PDF document is available in more than 25 languages. Translations: If you are willing to help us with translating into another language, please contact one of the authors (on4un(at)uba.be or on4ww(at)uba.be ). Someone else may already be working on a translation. Copyright: Unless specified otherwise, the information contained in this document is created and authored by John Devoldere ON4UN and Mark Demeuleneere ON4WW (the “authors”) and as such, is the property of the authors and protected by copyright law. Unless specified otherwise, permission is granted to view, copy, print and distribute the content of this information subject to the following conditions: 1. it is used for informational, non-commercial purposes only; 2. any copy or portion must include a copyright notice (©John Devoldere ON4UN and Mark Demeuleneere ON4WW); 3. no modifications or alterations are made to the information without the written consent of the authors. Permission to use this information for purposes other than those described above, or to use the information in any other way, must be requested in writing to either one of the authors. Ethics and Operating Procedures for the Radio Amateur 2 TABLE OF CONTENT Click on the page number to go to that page The Radio Amateur's Code ............................................................................. -
TAMANEWSLETTER Medical Research Council (UK) the Gambia
TAMANEWSLETTER Medical Research Council (UK) The Gambia TAMA: Wolof. n. a talking drum VOL: 09 ISSUE: 05 / NOV - DEC 2010 Working to achieve our vision…together Meet Peter Noble, who joined the Unit in November 2010 as the new Director of Operations. Peter succeeds Michael Kilpatrick who has taken up post as the Head of the MRC Regional Centre London. Peter’s background I trained and worked as a diagnostic radiographer in the North of England specialising in CT and MRI Scanning and led an international study on workforce development for imaging departments. I became interested in general management and worked in the national health service in Leeds, Bradford, Harrogate, Grimsby and Liverpool and so I have learned a lot as a result of these experiences, good and bad!. next page Vaccinology Theme holds fi rst retreat DrD Aubrey Cunnington MRC (UK) The Gambia is continuing the process of reorganizing its research portfolio into three new, interlinking, scientifi c themes: Child Survival, Disease Control & Elimination and Vaccinology. Dr Beate Kampmann, the Vaccinology Theme Leader, has already begun to defi ne the future strategy of her Theme in The Gambia. An important step was the organization of a meeting for all those undertaking and supporting Vaccinology research. As a relative outsider I felt very privileged to be invited to the Vaccinology Retreat, held at the MRC Fajara campus on Friday 10th and Saturday 11th December, 2010. The intention was to showcase ongoing and future work and facilities, to develop the continued on 04 Working to achieve our vision…together Peter Noble – continued from page 1 From my role as Director of a hospital in North East London, schools and international consultancy for the UK government I moved to create a new medical school between Leeds and and DfID. -
Message Sharing Through Optical Communication Usingcipher Encryption Method in Python
Turkish Journal of Computer and Mathematics Education Vol.12 No.13 (2021), 6969- 6976 Research Article Message sharing through optical communication usingcipher encryption method in python VenkataSubramanian S1VishweshVaideeswaran S2 and Dr. M. Devaraju3 1Department of Electronic and Communication Engineering, Easwari Engineering College, Ramapuram, Chennai-600089 2 Department of Electronic and Communication Engineering, Easwari Engineering College, Ramapuram, Chennai-600089 3Professor, Head of Department of ECE, Easwari Engineering college, Ramapuram, Chennai- 600089 [email protected]@[email protected] Abstract.The project currently exists based on optical communication in addition to how all of us use it to transfer encrypted messages in the form of light in addition to decrypt the same. In the encryption part all of us use cipher EXOR encryption method. This object over here currently exists mainly used to prevent leakage of data that object over there all of us currently are sending. This object over here method requires a key at both ends in order to encrypt in addition to decrypt the message. Here all of us use led to transmit the encrypted message in addition to with the help of LDR all of us get the message in the receiver end in addition to decrypt it. All of us discovered that object over there in optical communication the data transmission currently am able to exists done through both wired medium in addition to wireless medium. From our results all of us currently am able to say that object over there the rate at which the transmission currently exists done currently exists high. This object over here currently am able to exists used by the military during war to communicate with each other. -
Habib Koite Study Guide 0809.Indd
2008-2009 Season SchoolTime Study Guide Habib Koité and Bamada Friday, April 3, 2009 at 11 a.m. Zellerbach Hall, University of California, Berkeley Welcome to SchoolTime! On Friday, April 3, 2009, at 11 am, your class will attend a performance of Habib Koité and Bamada. Considered Mali’s greatest pop star, Habib Koité integrates elements of Western folk, rock, jazz and blues into music inspired by his homeland of Mali in West Africa. With Mr. Koité on guitar and his band Bamada playing traditional African as well as contemporary instruments, the musicians celebrate Mali’s diverse musical and cultural landscape. Using This Study Guide This study guide will enrich your fi eld trip to Zellerbach Hall by engaging your students more deeply with the performance. Prior to the show, we encourage you to: • Copy the student resource sheet on page 2 & 3 and hand it out to your students several days before the show. • Discuss the information on pages 4- 5 About the Performance and the Artists. • Read About the Art Form on page 6 and About Mali sections on page 8. • Engage your students in two or more of the activities on pages 11-12. • Refl ect with your students by asking the guiding questions, found on pages 2, 4, 6 & 8. • Familiarize students further with the art form by using the glossary and resource sections on pages 12-13. At the performance: Your students can actively participate during the performance by: • OBSERVING how the musicians work together to communicate with their music • LISTENING to the harmonies, rhythms and lyrics of the songs • THINKING ABOUT how history, culture, and ideas can be expressed through music • MARVELLING at the sounds, sights, and performance skills experienced at the theater • REFLECTING on the history and culture of Mali We look forward to seeing you at SchoolTime! SchoolTime Habib Koité and Bamada | III Table of Contents 1.