DOCSLIB.ORG

C.C.I.F. Plenary Session: Documents (Berlin, 1929)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
C.C.I.F. Plenary Session: Documents (Berlin, 1929) This electronic version (PDF) was scanned by the International Telecommunication Union (ITU) Library & Archives Service from an original paper document in the ITU Library & Archives collections. La présente version électronique (PDF) a été numérisée par le Service de la bibliothèque et des archives de l'Union internationale des télécommunications (UIT) à partir d'un document papier original des collections de ce service. Esta versión electrónica (PDF) ha sido escaneada por el Servicio de Biblioteca y Archivos de la Unión Internacional de Telecomunicaciones (UIT) a partir de un documento impreso original de las colecciones del Servicio de Biblioteca y Archivos de la UIT. (ITU) ﻟﻼﺗﺼﺎﻻﺕ ﺍﻟﺪﻭﻟﻲ ﺍﻻﺗﺤﺎﺩ ﻓﻲ ﻭﺍﻟﻤﺤﻔﻮﻇﺎﺕ ﺍﻟﻤﻜﺘﺒﺔ ﻗﺴﻢ ﺃﺟﺮﺍﻩ ﺍﻟﻀﻮﺋﻲ ﺑﺎﻟﻤﺴﺢ ﺗﺼﻮﻳﺮ ﻧﺘﺎﺝ (PDF) ﺍﻹﻟﻜﺘﺮﻭﻧﻴﺔ ﺍﻟﻨﺴﺨﺔ ﻫﺬﻩ .ﻭﺍﻟﻤﺤﻔﻮﻇﺎﺕ ﺍﻟﻤﻜﺘﺒﺔ ﻗﺴﻢ ﻓﻲ ﺍﻟﻤﺘﻮﻓﺮﺓ ﺍﻟﻮﺛﺎﺋﻖ ﺿﻤﻦ ﺃﺻﻠﻴﺔ ﻭﺭﻗﻴﺔ ﻭﺛﻴﻘﺔ ﻣﻦ ﻧﻘﻼ ً◌ 此电子版（PDF版本）由国际电信联盟（ITU）图书馆和档案室利用存于该处的纸质文件扫描提供。 Настоящий электронный вариант (PDF) был подготовлен в библиотечно-архивной службе Международного союза электросвязи путем сканирования исходного документа в бумажной форме из библиотечно-архивной службы МСЭ. © International Telecommunication Union OMITE CoNSULTATIF INTERNATIONAL DES COMMUNICATIONS TELEPHONIQUES A GRANDE DISTANCE Plenary Session, Berlin> yrd-ioth June3 1929 \ ENGLISH EDITION Issued by The International Standard Electric Corporation, London, 1930. PREFACE TO THE ENGLISH EDITION. This volume contains an unofficial translation of the official French text of the Proceedings of the CO MITE CONSULTATIF INTERNATIONAL DES C ommunications T elephoniques a G r a n d e D i s ­ t a n c e (c .c .i .) at its Plenary Session in Berlin, 3 rd -io th June, 1929. I nternational S t a n d a r d , E l e c t r i c C o r p o r a t io n . CONTENTS. Page I.—LIST OF DELEGATES........................... i II.—MINUTES OF THE OPENING SESSION 6 HI.—QUESTIONS OF GENERAL ORGANISATION ......................................................... n Organisation and Working of the International Consultative Committee for Loilg-Distance Telephone Communications .-. .. .. .. .. .. n Distribution of the Expenses incurred in the Operations of the International Consultative Committee . .. .. .. .. ... 13 Distribution of Expenses for the Maintenance of the European Master Reference System for Telephone Transmission .. .. .. .. 13 Representation on the International Consultative Committee of Private1 Telephone Organ­ isations operating in Countries where a State Telephone Administration exists . 14 Membership of the International Consultative Committee of Private Telephone Adminis­ trations which operate in Countries where there is no State Telephone Administration 14 Technical Collaboration between the International Consultative Committee and Technical Organisations dealing with Questions likely to have a bearing on International Telephony 15 Methods to be followed in the Study of Questions of interest both to the International Consultative Committee and to other International Organisations .. 15 Collaboration between the C.C.I. and the International Bureau of the Telegraph Union . 16 Committee on Revision of the International Regulations (Telephone Section) .. .. 16 IV.—QUESTIONS OF TRANSMISSION, MAINTENANCE AND SUPERVISION OF LINES AND INSTALLATIONS .. ’ . 18 A. Advice of the International Consultative Committee on Long-Distance Telephone Communications .... .. .. .. .. .. .. .. < 19 (A.a.) G en eral................................... .... ; .............................. 19 (A.a.l.) Transmission Standards and Definitions . 19 Transmission Unit .. 19 Method of expressing Frequency . .... 19 Conversion Table of Transmission Units (Nepers and Decibels). 20 Definition of some Expressions used in Questions of Telephone Transmission . .. 20 (a) Nepers and Decibels . .. .... 20 (b) Special Definitions . •. .. .. .. .. .. .. .. .... .. 21 Telephone Transmission Reference Systems.. .. .. .. .. .. .. .. 23 Object of Telephone Transmission Reference Systems . 23 The Setting up of Telephone Transmission Reference Systems.. .. .. .. 23 Conditions which should be fulfilled by the Telephone Transmission Reference Systems . 23 I.—The Master Telephone Transmission Reference System '.. .. 23 II.—Telephone Transmission Reference Systems . 23 (1) Transmitting System . ... ................ .. 23 (2) Reference Artificial Line .... 25 (3) Reference Receiving. System .\ ... 26 IV,— Questions of Transmission, Maintenance and Supervision, &c.— continued. Page III.—Working Standards : . , . ,. .... 27 Recommendations regarding the Calibration of Reference Systems and Working Standards 28 A.—Comparison of Reference Systems with the Master Reference System, and the Periods at which such Comparisons should be made. 28 B.—Calibration of Working Standards referred to the “ SFERT ” .... 28 C.—Normal adjustment of the " SFERT ... 28 A p p en d ix I. Notes on Working Standards employing Carbon Transmitters (" SETAC ”)— A.—Description of the Working Standard . 32 B.—Comparison of the “ SETAC ” with the “ SFERT ” . 33 C.—Instructions for the use of a “ SETAC ” . 36 D.—General Remarks concerning the Carrying out of the Tests . 43 E.—Periodic Calibration of the Standard Instruments by the “ SFERT ” Laboratory . 46 Addendrtm No. 1 to A p p en d ix No. 1. Essential Clauses of a Specification for the Supply of Repeating Coils (Toroidal Coils). .• . 48 Addendum No. 2 to A p p en d ix No. 1. Sample Calibration Sheets .. .. .. .. 50 ■Addendum No. 3 to A p p en d ix No. 1. Experiments to Determine the Normal Calling Intensity to be used in Phonometric Tests . , . 51 A p p en d ix II. Note on Working Standard Systems using Electro-magnetic Transmitters (“ S E T 'E M ” ) .............................. .. .'. .. 51 A.—Description of the “ SETEM ” Working Standard System . 51 B.—Comparison of the “ SETEM ” with the “ SFERT ” . .. 54 C.—Instructions for using a “ SETEM ” . 57 D.—General Remarks concerning the Carrying out of Tests . 59 E.—Periodic Calibration of Standard Instruments by the “ SFERT ” Laboratory . 59 General Method to be employed for Testing Syllable Articulation . .. 60 A ppendix. Comparative Articulation Tests in Various Languages. (Technical Report No. 4 of the “ SFERT ” Laboratory) . 62 I.—Normal Articulation Tests . 62 II.—International List Test . .. 64 (A.a.2 .) Recommendations of Principle . .. 66 Practical Limits of Transmission Equivalents . 66 T ran sien t Phenom ena . .. 67 Possibility of Standardisation of Long-Distance Telephone Systems . 67 (A.b.) General Rules concerning the Composition of Transmission System s...................................... 69 (A.b.2.) Carrier Current Telephony . 69 (A.b.3.) Radio-broadcast Transmission . 69 Maximum and Minimum Transmission Levels to be adopted for Radio-broadcast Transmissions 69 Conditions which Open-wire Lines must fulfil in order to be used for Radio-broadcasting.. 70 Alterations to be made in Cable Circuits in order that they may be suitable for Broadcast T ransm ission . ’. 70 Electrical Conditions to be considered as a Criterion for the good Condition of Lines for relaying Radio-broadcast Transmissions .. .. .. .. .. .. 71 (A.b.4.) Picture Transmission . ' . 72 Conditions relating to Picture Transmission over Telephone circuits - . 72 (A.c.) Apparatus . ' . 73 (A.C.l.) Subscribers’ Instruments .... 73 Tests of Subscribers’ Instruments and Lines in Operation . 73 (A.C.2.) Local Exchanges .. .. .. .. .. ... ... 74 General Conditions which should be satisfied by the new Bourse Exchanges regarding the use of International Circuits . ..... 74 iv IV.—Questions of Transmission, Maintenance and Supervision, &c.—continued. Page (A.C.3.) Toll Exchanges. Conditions to be satisfied by Cord Circuit Repeater Positions from the Point of View of Facilities for Regulation of the Repeater, as well as for Supervision, and Charging of Calls . 75 Conditions to be satisfied by International positions as regards the Type of Operator’s Set and the Transmission Losses due to the Operator listening on the Line . 75 (A.C.4.) Repeater Stations . .. 76 Compensation of the Effects due to Temperature Variations . .. 76 (A.d.) Lines ....................................................................... ............................................ 77 (A.d.l.) Open-wire Lines . .. 77 Loading of Open-wire Lines . 77 Setting up of Open-wire Lines . 77 (A.d.3.) Mixed Lines. Rules for the Construction and Loading of Cables inserted in Open-wire Lines . 79 (A.e.) Maintenance and Supervision of Lines and Installations......................................................... 80 Extract from the List of Periodical Tests for the Maintenance of International Circuits . 80 A p p en d ix I. Definition and Measurement of Attenuation due to Echo (“ Singing Point”). 81 A p p en d ix II. The Measurement of Impedance Unbalance . 84 Suggested Instructions for putting into service and maintaining International Telephone C ircuits . 96 A.—Setting up and putting into service International Circuits. 96 B.—Routine Tests to be made in. order to ensure satisfactory Operation of the Circuits . 98 Application of the Instructions for putting into service and maintaining International Telephone Circuits . •. .'. 101 A ddendum I. Crosstalk Tests .. .. .. .. .. .. .. .. .. 110 Maintenance of Circuits used for the relaying of Broadcast Transmission . 111 Division of Responsibility between Telephone Administrations and Radio-broadcast Services (State or Private) regarding the maintenance of Circuits used for the relaying of Broadcast Transmissions .. .. .. .. .. .. .. .. ... in Technical
Load more

Recommended publications
  • The Marriage That Almost Was Western Union Has Always Been R.Idiculed for Rejecting the All Telephone
    RETROSPECTIVE .Innovation The marriage that almost was Western Union has always been r.idiculed for rejecting the telephone. But what actually happened wasn't so ridiculous after all The hirth of the telephone.,-one hundred years ago railway and illuminating gas to Cambridge, Mass. this month-is a fascinating story of the geJ;Jius and Long intrigued by telegraphy, he decided to do persistence of on.e man. In addition, it is an instruc­ something about what he called "this monopoly tive demonstration of how an industrial giant, in with its inflated capital which serves its stockhold­ this case the Western Union Telegraph Co., can ers better than the 'public and whose:rates are ex­ miss its chance to foster an industry-creating orbitant and prohibiting of many kinds of busi­ breakthrough-something that has happened again ness." Between 1868 and 1874, he lobbied unceas­ and again in electronics and other fields. ingly, shuttling back and forth betweep. homes in Between ·1875 and 1879, Western Union's chiefs Boston and Washington. for a private "postal tele­ engaged in an intricate minuet with Alexander graph company" to be chartered by Congress but Graham Bell and his associates. On more than one with Hubbard and some of his friends among the occasion, the telegraph colossus came excruciating­ incorporators. As Hubbard envisioned it, the com­ ly close to absorbing the small group of ~ntre­ pany would build telegraph lines along the nation's preneurs, That the absorption was finally avoided rail and post roads and contract with the Post was probably the result of a technological gamble Office Department to send telegrams on its wires ~t that simply didn't payoff, as rates roughly half those being charged by Western ••• The place: the ollie of well as a clash of personali­ Union.
    [Show full text]
  • A History of Audio Effects
    applied sciences Review A History of Audio Effects Thomas Wilmering 1,∗ , David Moffat 2 , Alessia Milo 1 and Mark B. Sandler 1 1 Centre for Digital Music, Queen Mary University of London, London E1 4NS, UK; [email protected] (A.M.); [email protected] (M.B.S.) 2 Interdisciplinary Centre for Computer Music Research, University of Plymouth, Plymouth PL4 8AA, UK; [email protected] * Correspondence: [email protected] Received: 16 December 2019; Accepted: 13 January 2020; Published: 22 January 2020 Abstract: Audio effects are an essential tool that the field of music production relies upon. The ability to intentionally manipulate and modify a piece of sound has opened up considerable opportunities for music making. The evolution of technology has often driven new audio tools and effects, from early architectural acoustics through electromechanical and electronic devices to the digitisation of music production studios. Throughout time, music has constantly borrowed ideas and technological advancements from all other fields and contributed back to the innovative technology. This is defined as transsectorial innovation and fundamentally underpins the technological developments of audio effects. The development and evolution of audio effect technology is discussed, highlighting major technical breakthroughs and the impact of available audio effects. Keywords: audio effects; history; transsectorial innovation; technology; audio processing; music production 1. Introduction In this article, we describe the history of audio effects with regards to musical composition (music performance and production). We define audio effects as the controlled transformation of a sound typically based on some control parameters. As such, the term sound transformation can be considered synonymous with audio effect.
    [Show full text]
  • Cit 305: Networking and Communication Technology
    CIT 305: NETWORKING AND COMMUNICATION TECHNOLOGY 1 NATIONAL OPEN UNIVERSITY OF NIGERIA FACULTY OF SCIENCE DEPARTMENT OF COMPUTER SCIENCE COURSE CODE: CIT305 COURSE TITLE: NETWORKING AND COMMUNICATION TECHNOLOGY 2 COURSE GUIDE CIT305 NETWORKING AND COMMUNICATION TECHNOLOGY CourseTeam Prof A.S. Sodiya (Developer/Writer)–FUNAAB Dr. A. A. Afolorunso (Coordinator)-NOUN 3 CONTENTS PAGE Introduction........................................................................................ 1 WhatYouWillLearnin ThisCourse................................................ 1 Course Aims...................................................................................... 1 CourseObjectives…………………………………………….……. 1 WorkingthroughThisCourse............................................................ 2 CourseMaterials................................................................................. 2 2 StudyUnits........................................................................................ AssignmentFile.................................................................................. 3 Tutor-MarkedAssignments(TMAs)................................................. 3 ExaminationandGrading................................................................... 4 PresentationSchedule........................................................................ 4 CourseMarkingScheme.................................................................... 5 CourseOverview…………………………………………………… 5 Howto Getthe MostfromThisCourse...........................................
    [Show full text]
  • Telephone – Inventions That Revolutionized the World
    Telephone – Inventions that Revolutionized the World December 14, 2018 First Publication Date: 27th November 2010 The most common devices used for transmitting the voice signal over a greater distance are pipes and other physical mechanical media. All of us as a child must have used this form for communication. Another device used for centuries for voice communication is lover’s phone or tin can telephone. The classic example is the children’s toy made by connecting the bottoms of two paper cups, metal cans, or plastic bottles with string. But the invention which changed the entire scenario of the communication is the telephone. It revolutionized the entire communication system. People could hear the voice of their loved ones staying miles away. Telephone comes from the Greek word tele, meaning from afar, and phone, meaning voice or voiced sound. Generally, a telephone is any device which conveys sound over a distance During the second half of the 19th century many well-known inventors were trying to develop an acoustic telegraphy for economic telegraph messages which included Charles Bourseul, Thomas Edison, Antonio Meucci, Johann Philipp Reis, Elisha Gray, and Alexander Graham Bell. The ‘speaking telegraph’ or in simple terms ‘telephone’ emerged from the creation and gradual improvement of telegraph. The invention of telephone has been one of the most disputed facts of all time. Credit for the invention of the electric telephone is never an ending dispute and new controversies over the issue keeps arising from time-to-time. The Elisha Gray and Alexander Bell controversy raises the question of whether Bell and Gray invented the telephone independently and, if that’s not true, then whether Bell stole the invention from Gray.
    [Show full text]
  • Entrepreneursh Entrepreneurship
    Entrepreneurship TiasNimbas Business School Int. MSc. in Business Administration Module Entrepreneurship Joris van Kreij 200952109 Individual assignment 6 June 2011 Prof. Shahid Rasul 2420 words Table of Contents 1 Gardiner Greene Hubbard 3 1.1 Background 3 1.2 Journey 3 1.3 Grabbing the opportunity 4 1.4 Factors for success 5 1.5 Legacy 6 2 Own Entrepreneurial Capabilities 7 2.1 General Enterprise Test 7 2.2 Applegate Entrepreneurial Mindset 8 2.3 Other tests and personal feedback 8 2.4 Analysis 9 3 Conclusion 10 Appendixes 11 References 13 Entrepreneurship 2 1 Gardiner Greene Hub bard Gardiner Greene Hubbard (August 25, 1822 – December 11, 1897) was a lawyer , financier, and philanthropist from the United States. Among other remarkable feats he was founder of the Bell Telephone Company and the first president of the National Geographic Society . This report will mainly focus on Hubbard’s contribution to the telephone services in t he United States. 1.1 Background Gardiner Greene Hubbard was born in Boston, Massachusetts in 1822. His father Samuel Hubbard was a Massachusetts Supreme Court justice. Hubbard was also a grandson of Boston merchant Gardiner Greene. He was further a descendant of Lion Gardiner, an early English settler and soldier in the New World who founded the first English settlement in what later became the State of New York. Hubbard attended the Phillips Academy in Andover, graduated from Dartmou th in 1841 and studied law at Harvard. 1.2 Journey Gardiner Greene Hubbard has been active in many different fields. The main events of his life have been listed below.
    [Show full text]
  • Telephones and Economic Growth: a Worldwide Long-Term Comparison - with Emphasis on Latin America and Asia
    ACKNOWLEDGMENTS This research has been possible through the direct support of the Institute of Developing Economies, IDE-JETRO (アジア経済研究所), and part of METI in Japan. I sincerely owe a deep debt of gratitude to all the researchers, the librarians and the staff of IDE-JETRO that offered me an excellent working environment with an interdisciplinary background. I benefited greatly from the many formal and informal interactions with colleagues from Japan and many other countries. My first personal gratitude is towards my Japanese counterpart Aki Sakaguchi who convinced me to come to IDE-JETRO, where I was received very well by the complete Latin American team of IDE-JETRO, particularly Taeko Hoshino, Tatsuya Shimizu, Koichi Usami and Kanako Yamaoka, plus the Latin American librarians Tomoko Murai and Maho Kato. I am also grateful to all the team of Japanese experts on different parts of the world, from Africa to Asia in the Areas Study Center, particularly Nobuhiro Aizawa, Ke Ding, Mai Fujita, Takahiro Fukunishi, Azusa Harashima, Yasushi Hazama, Takeshi Kawanaka, Hisaya Oda, Hitoshi Ota, Yuichi Watanabe and Miwa Yamada. The researchers of the Development Studies Center and the Inter-disciplinary Studies Center were also very helpful to me, specially Satoshi Inomata, Koichiro Kimura, Masahiro Kodama, Kensuke Kubo, Satoru Kumagai, Ikuo Kuroiwa, Hiroshi Kuwamori, Hajime Sato, Katsuya Mochizuki, Junichi Uemura, and last but not least, Tatsufumi Yamagata. For my statistical analysis, I want to recognize the continuous support from Takeshi Inoue, Hisayuki Mitsuo and particularly Yosuke Noda, who were always very kind and patient with me. Yasushi Ueki of the Bangkok Research Center JETRO, and Mayumi Beppu, Naoyuki Hasegawa, Yasushi Ninomiya and Ryoji Watanabe of JETRO Headquarters, Takuya Morisihita of JETRO Venezuela, together with other personnel from JETRO and METI were very supportive as well.
    [Show full text]
  • Sixth Meeting of the CCIT
    This electronic version (PDF) was scanned by the International Telecommunication Union (ITU) Library & Archives Service from an original paper document in the ITU Library & Archives collections. La présente version électronique (PDF) a été numérisée par le Service de la bibliothèque et des archives de l'Union internationale des télécommunications (UIT) à partir d'un document papier original des collections de ce service. Esta versión electrónica (PDF) ha sido escaneada por el Servicio de Biblioteca y Archivos de la Unión Internacional de Telecomunicaciones (UIT) a partir de un documento impreso original de las colecciones del Servicio de Biblioteca y Archivos de la UIT. (ITU) ﻟﻼﺗﺼﺎﻻﺕ ﺍﻟﺪﻭﻟﻲ ﺍﻻﺗﺤﺎﺩ ﻓﻲ ﻭﺍﻟﻤﺤﻔﻮﻇﺎﺕ ﺍﻟﻤﻜﺘﺒﺔ ﻗﺴﻢ ﺃﺟﺮﺍﻩ ﺍﻟﻀﻮﺋﻲ ﺑﺎﻟﻤﺴﺢ ﺗﺼﻮﻳﺮ ﻧﺘﺎﺝ (PDF) ﺍﻹﻟﻜﺘﺮﻭﻧﻴﺔ ﺍﻟﻨﺴﺨﺔ ﻫﺬﻩ .ﻭﺍﻟﻤﺤﻔﻮﻇﺎﺕ ﺍﻟﻤﻜﺘﺒﺔ ﻗﺴﻢ ﻓﻲ ﺍﻟﻤﺘﻮﻓﺮﺓ ﺍﻟﻮﺛﺎﺋﻖ ﺿﻤﻦ ﺃﺻﻠﻴﺔ ﻭﺭﻗﻴﺔ ﻭﺛﻴﻘﺔ ﻣﻦ ﻧﻘﻼ ً◌ 此电子版（PDF版本）由国际电信联盟（ITU）图书馆和档案室利用存于该处的纸质文件扫描提供。 Настоящий электронный вариант (PDF) был подготовлен в библиотечно-архивной службе Международного союза электросвязи путем сканирования исходного документа в бумажной форме из библиотечно-архивной службы МСЭ. © International Telecommunication Union INTERNATIONAL TELEGRAPH CONSULTATIVE COMMITTEE (C. C. I. T.) DOCUMENTS O F T H E SIXTH MEETING AT BRUSSELS 'lOth—27th May, 1948 (GENEVA REVISION) March 1951 INTERNATIONAL TELECOMMUNICATION UNION OCTOBER 1951 INTERNATIONAL TELEGRAPH CONSULTATIVE COMMITTEE (C. C. I.T .) DOCUMENTS O F T H E SIXTH MEETING AT BRUSSELS 10th—27th May, 1948 (GENEVA REVISION) March 1951 INTERNATIONAL TELECOMMUNICATION UNION OCTOBER 1951 CONTENTS Page Extracts from Minutes of closing meeting of Brussels Meeting (27 May 1948) ...... 3 Postponement until 1953 of the next C. C. I. T. Plenary Meeting, and provisional arrange­ ments to prevent delay in the work of the C.
    [Show full text]
  • Indecs 17(3-B)
    17(3-B), pp.520-697, 2019 ISSN 1334-46844 INTERDISCIPLINARY DESCRIPTION OF COMPLEX SYSTEMS Scientific Journal B. Zhang 520 On Development of Information Communications in Human Society W. Akram, 546 Towards Agent-Based Model Specification of Smart M. Niazi, Grid: A Cognitive Agent-Based Computing Approach L.B. Iantovics and A.V. Vasilakos A.F. Barišić, 586 The Intensity of Human Resources Information J. Poór and Systems usage and Organizational Performance M. Pejić Bach S. Banerjee 598 Towards a Quantitative Model of Epidemics during Conflicts D. Šoštarić, 615 ECG Simulation and Integration of Kalman Filter in Gy. Mester and Cardio Pediatric Cases S. Dorner D. Šoštarić, 629 Mobile ECG and SPO2 Chest Pain Subjective Gy. Mester and Indicators of Patient with GPS Location in Smart S. Dorner Cities N. Dubreta and 640 Subjectivity and Technology in Work of Technicians I. Mikulić in Periodical Technical Inspection Stations Maroje Višić 659 Renaissance of Herbert Marcuse: A Study on Present Interest iin Marcuse’s Interdisciplinary Critical Theory T. Krajna and 684 Croatian Highly Cited Papers J. Petrak 697 Palić, I.; Banić, F. and Matić, L.: The Analysis of the Impact of Depreciation on External Debt in Long-Run: Evidence from Croatia. Interdisciplinary Description of Complex Systems 16(1), 186-193, 2018. http://dx.doi.org/indecs.16.1.15. Scientific Journal INTERDISCIPLINARY DESCRIPTION OF COMPLEX SYSTEMS INDECS, volume 17, issue 3, part B, pages 520-697, year 2019 Published 30th September 2019 in Zagreb, Croatia Released online 30th September 2019 Office Croatian Interdisciplinary Society c/o Faculty of Mechanical Engineering & Naval Architecture I.
    [Show full text]
  • Theoretical and Practical Application of These Scientific and Engineering Disciplines
    1 www.onlineeducation.bharatsevaksamaj.net www.bssskillmission.in INTRODUCTION TO DATA COMMUNICATIONS Topic Objective: At the end of the topic the students will be able: Explain RAD Data Communications Understand Computer networking device Elaborate Communications protocol Evaluate Networking Models Define OSI Layers Describe The TCP/IP Layers Examine Local area network Highlight Metropolitan area network Identify Wide area network Definition/Overview: Computer networking is the engineering discipline concerned with communication between computer systems or devices. Networking, routers, routing protocols, and networking over the public Internet have their specifications defined in documents called RFCs. Computer networking is sometimes considered a sub-discipline of telecommunications, computer science, information technology and/or computer engineering. Computer networks rely heavily upon theWWW.BSSVE.IN theoretical and practical application of these scientific and engineering disciplines. All networks are interconnected to allow communication with a variety of different kinds of media, including twisted-pair copper wire cable, coaxial cable, optical fiber, and various wireless technologies. The devices can be separated by a few meters (e.g. via Bluetooth) or nearly unlimited distances (e.g. via the interconnections of the Internet). Key Points: 1. RAD Data Communications www.bsscommunitycollege.in www.bssnewgeneration.in www.bsslifeskillscollege.in 2 www.onlineeducation.bharatsevaksamaj.net www.bssskillmission.in RAD Data Communications
    [Show full text]
  • On Development of Information Communications in Human Society
    Interdisciplinary Description of Complex Systems 17(3-B), 520-545, 2019 ON DEVELOPMENT OF INFORMATION COMMUNICATIONS IN HUMAN SOCIETY Bangwei Zhang* Hunan University, College of Physics Changsha, People’s Republic of China DOI: 10.7906/indecs.17.3.13 Received: 21 May 2019. Regular article Accepted: 27 September 2019. ABSTRACT Information is very important. Information is also very complicated, making that people have no common understanding and conclusion for the nature of it up today. There are too many papers and some books to describe information; however it is rather difficult to find the description and analysing for the whole history of information from the advent of human beings to the present day. Two parts of information in prehistoric period and the time interred divinization are described. Every part is separated according to several succeeded stages for description. It is near impossible to describe in detail such entire historical facts of information in human society in a paper, so the description and discussion is focused on their comprehensiveness and integrity. By knowing and analysing all these solid historical facts of information, some relative issues e.g. “did information age really exist in the development of material civilization in human society” can be recognized easily. KEY WORDS information, history of information, information communication, matter, substance civilization, six-stage theory CLASSIFICATION JEL: B10, D83 *Corresponding author, : [email protected]; +0731 88822715; *College of Physics, Hunan University, Changsha 410 082, People’s Republic of China * On development of information communications in human society INTRODUCTION Near everybody knows the importance of information because nobody can leave the information and it communications.
    [Show full text]
  • Director's Report
    Published by the Telecommunications History Group, Inc. DENVER, COLORADO (303) 296-1221 www.telcomhistory.org Autumn 2012, Vol. 16, no. 3 Jody Georgeson, editor Director’s Report by Jody Georgeson I thought you might like to know a little more about archives and museums and why we think it is important to preserve the history of our industry. History is important to all of us because it is the heritage that shaped the world we live in today. It helps us to understand the world, and how it became what we see today. It can help us to solve problems that we face today by seeing solutions that were tried, successfully or not, in the past. Authoritative historical work will always rely on oral tradition, personal memoirs, and other semi-official works, but it is doubtful that new history will be written without the cumulative and verifiable sources found in museums and in archival depositories. Besides the historical importance, an important reason for the existence of archives and museums is a cultural one. Our collections are as important a cultural resource as paintings and sculptures, monuments, landscapes, archaeological sites, buildings, and religious beliefs and practices. The mission of any historical institution is to identify artifacts and documents of enduring value; to preserve them; and to make them available to patrons. THG’s focus is to help our communities understand how telecommunications has shaped our lives and our world. In order to accomplish our mission, we rely on our wonderful volunteers and on our members. How can you help? Donate materials - Most of us have things in our home which we’ve saved as reminders of our careers in the telecom industry.
    [Show full text]
  • 1^3 £ <$5 MHI TM ^0-4851 JAPANESE-ENGLISH GLOSSARY
    1^3 £ <$5 MHI TM ^0-4851 WAR DEPARTMENT TECHNICAL MANUAL ^ JAPANESE-ENGLISH GLOSSARY TECHNICAL COMMUNICATION TERMS May 1, 1943 JAPANESE CHARACTERS ENGLISH EQUIVALENT PRONUNCIATION ^ ITSU. ICHI, BITOISU ONE. SINGLE, PRIMARY /£ J < /k ICHIJI KOIRU PRIMARY COIL >£ 7 1 y * -i -y-f ICHIJI RAIK SUVITCHI PRIMARY LINE SIIICH ;i ia f& ICHIJI KAIRO PRIMARY CIRCUIT -~;*3fc« ICHIJI HOSNA PRIMARY EMISSION -*©t£#*&%V ICHfjl INKYOKU AHBU PRIMARY DARK SPACE -©fctt ICHIJI DENSHI PRIMARY ELECTRON PRIMARY CELL. -©*t;t ICHIJI BENCH! PRIMARY BATTERY -;fct# ICHIJI DENATSU PRIMARY VOLTAGE -^*5IS ICHIJI SENRIN PRIMARY COIL - a£«3 a ISStNKA NAHARI LEAD MONOXIDE, LITHARGE -$ «*£ ISSEI YOB 1 DASH 1 SIMULTANEOUS CALLING j=- SAN, HI, HITTSU THREE ^tfia%- SANJI KAIRO TERTIARY CIRCUIT 5.ft*S*Si SANKAKU KESSEN DELTA CONNECTION 5-*tt**« SAN HAKISEN HENSEIKI THREE-KINDING TRANSFORMS i*S SAKSO THREE-PHASE TRIPLE-PETTICOAT (THREE- ^f*^ SANJU CAISHI SECTION) INSULATOR SANKTOKU SHIKKUKAK TRIODE, THREE-ELECTRODE ^-*4«f VACUUM TUBE TRIODE, THREE-ELECTRODE ^-ttf SANKTOKUKAN TUBE UP. UPPER. ABOVE. HIGH. i JO. UE, KAMI BETTER *i -;&f JO SOKUHATAI UPPER SIDE BAND -t--W JOBU SEN UPPER LI HE T GE. SHIT*. SHIHO, (A LOK, LOKR, OOKN fttri.y 1-ft$L GfDJK BURtNKU FUG8 LETTER-BLANK SIGNAL T ?(>.*? KtBU SEN DOKN-LIKE. LOKR-LINE Z- Zl), FU. BU NOH-, NEGATIVE. NOT *m FU BYO"S KAI NON-UNIFORM FIELD y-tto FU HE IKS UNBALANCE. UNBALANCED * £ T* FU KANRT9 TOBI INEFFECTIVE CALL T|U*tt FURTO D8TAI BAD CONDUCTOR *£ ;& FUKAI HA UNDISTORTED HAVE ^4fttdia>fr FU SHIHD5 KAIPO APERIODIC CIRCUIT *«#)#: FU SHINDO HODEN NON-OSCILLATORY DISCHARGE x&to-A® FU SHIND3 EEKPUKU APERIODIC DAMPING SERVICE INTERRUPTION, £ii FUTSU BROKEN COMMUNICATION TS-H&X&&.
    [Show full text]