Product Guide Annual 2018
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Vision Procedures Manual
National Health and Nutrition Examination Survey VISION PROCEDURES MANUAL (Revised January 2001) TABLE OF CONTENTS Chapter Page 1 INTRODUCTION ........................................................................................... 1-1 1.1 Overview of Vision Exam Component............................................... 1-1 1.2 General Overview of Procedures ........................................................ 1-1 2 EQUIPMENT .................................................................................................. 2-1 2.1 Description of Exam Room in the MEC............................................. 2-1 2.2 Description of Equipment and Supplies ............................................. 2-1 2.2.1 The Lensmeter..................................................................... 2-2 2.2.2 The Autorefractor/Keratometer........................................... 2-2 2.3 Equipment Set Up Procedures ............................................................ 2-2 2.3.1 Start of Stand Procedures .................................................... 2-2 2.3.2 Daily Procedures ................................................................. 2-5 2.3.3 Tolerance............................................................................. 2-5 2.4 Recording in ISIS................................................................................ 2-6 2.4.1 Start of Stand Quality Control............................................. 2-6 2.4.2 Daily Quality Control.......................................................... 2-7 2.4.3 End -
6. Using Cryptimage at Startup You Will See the Main Interface : Cryptimage Interface, the Look and Feel Will Be Different Depending Your Operating System
Cryptimage user guide 1. Introduction Cryptimage is an open source software under the license GNU GPL v3 which purpose is to reproduce old analog TV encryption systems like « discret 11 » (used between 1984 and 1995 by french TV network « canal plus ») , « nagravision syster » (used between 1995 and 2010), and « videocrypt » used by Sky TV and by several other broadcasters on astra satellites. This software allows to encrypt a video file (image and sound) , and allows also a decryption of an encrypted file, by meeting the standard of discret11, nagravision syster and videocrypt. Besides the ability to reproduce in a digital way these three encryption systems, its second use is to allow the re-use of hardware descramblers by injecting to them an encrypted video file produced by cryptimage. 2. Definition of discret 11 The discret11 process is to encrypt the image by delaying each line by three values to choose from (0, 902 and 1804 milliseconds), delays are selected through an algorithm based on a pseudo-random sequence, the sound is rendered unintelligible by subjecting it to a spectrum inversion around the frequency 12800 Hz. Discret11 encryption example, on a philips PM5544 tv card. 3. Definition of nagravision syster Nagravision syster (SYStème TERrestre) scrambles the image by permuting lines, a TV frame has 2 interlaced fields, each field has 288 lines and these lines are permuted (except line 288 which is not permuted), then the first 32 lines of each encrypted field are shifted to the previous encrypted field, which give this pattern -
Validation of a Measuring Device Constructed on Bases of the Principle of the Center of Rotation of the Eye
Aalen University Faculty of Optometry Validation of a measuring device constructed on bases of the principle of the center of rotation of the eye. Bachelor’s Thesis by Benjamin Hahn Supervisor: Prof. Dr. Ulrike Paffrath Second Supervisor: Reinhard Liebhäußer Submission Date: 04.08.2014 Abstract Ophthalmic lenses are ideally measured in accordance with the center of rotation of the eye. Therefore a measuring device was constructed due to this principle to measure lenses with a focimeter. In this work that measuring device was validated. Lenses of ±4 dpt in spherical and aspherical design were measured across a field of 9x9 measuring points being at 5° distance from each other. This corresponds to a field of view of 40°. The measurement points in x- and y-direction were theoretically calculated to validate the measurement results. Regarding angles of incidence up to 20° it was supposed that the main optical aberration depends on a change in the sagittal and tangential sphere powers which is also defined as astigmatism. Therefore the calculation presents the tangential and sagittal oblique sphere powers depending on the different angles of the line of vision. On average the measurement results and the calculated data of the spherical designed lenses coincide quite good (correlation at 0,98), the systematic deviation of both values on average is 0.01 dpt and the random error (standard deviation) amounts 0.03 dpt on average. The minimum deviation is -0.06 dpt and the maximum is 0.09 dpt. Common focimeters have a measuring inaccuracy of up to 0.06 dpt (Diepes, Blendowske 2002). -
Ultimate the ^ ABO Study Guide Version 7/2016
Ultimate The ^ ABO Study Guide Version 7/2016 "Opticianworks.com was truly a game changer for me! The basic (free) ABO Guide was good for helping me pass the ABO, but then I discovered the paid portion. It was there that I found endless tools, in the form of videos, charts, explanations, formulas, and links, that opened my eyes to all that was possible, both in passing my necessary tests, and in becoming a true professional. Thank you for creating and maintaining such a professional and detailed resource, and at such an affordable price, too! I am a fan of quality overall, wherever I find it. So many things are shoddily done these days, but the quality of your site truly shows. Heck, I happen to live near John and he even had me over for a 1:1 practice session! Where else are you going to find that kind of customer service?” Pam DiPrima 7/2016 __________________________________________________________ “OpticianWorks is by far the best thing I've spent so few dollars on in the past few months. For $10 a month, I have had my expectations exceeded and so much more than the study guides for the ABO/licensing exams. My daily questions get answered immediately, and at my request, study guides and "problems" get emailed to me for practice. This is my career I'm talking about, and without being properly prepared for my exams, to obtain certifications and licenses, I'm just another minimum wage statistic. What do you spend $10 on, on a DAILY basis? Lunch with a coworker? A movie without the popcorn and drink? What if you could spend only $10 a MONTH and get yourself fully prepared as an optician? You can! Worth it. -
Simultaneous Transmission of Audio and Video Signals Using Visible Light Communications
Northumbria Research Link Citation: Son, Do, Cho, Eun Byeol, Moon, Inkyu, Ghassemlooy, Zabih, Kim, Soeun and Lee, Chung Ghiu (2013) Simultaneous transmission of audio and video signals using visible light communications. EURASIP Journal on Wireless Communications and Networking, 2013 (1). p. 250. ISSN 1687-1499 Published by: Springer URL: http://dx.doi.org/10.1186/1687-1499-2013-250 <http://dx.doi.org/10.1186/1687- 1499-2013-250> This version was downloaded from Northumbria Research Link: http://nrl.northumbria.ac.uk/id/eprint/16123/ Northumbria University has developed Northumbria Research Link (NRL) to enable users to access the University’s research output. Copyright © and moral rights for items on NRL are retained by the individual author(s) and/or other copyright owners. Single copies of full items can be reproduced, displayed or performed, and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided the authors, title and full bibliographic details are given, as well as a hyperlink and/or URL to the original metadata page. The content must not be changed in any way. Full items must not be sold commercially in any format or medium without formal permission of the copyright holder. The full policy is available online: http://nrl.northumbria.ac.uk/policies.html This document may differ from the final, published version of the research and has been made available online in accordance with publisher policies. To read and/or cite from the published version of the research, please visit the publisher’s website (a subscription may be required.) Son et al. -
Tv Dx-Ing Fm Dx-Ing Test Cards Based on Our Former Websites
www.dx-tv.fsnet.co.uk - hs publications E-mail: [email protected] FOR THE LATEST VERSION OF OUR CATALOGUE PDF TV DX-ING FM DX-ING TEST CARDS BASED ON OUR FORMER WEBSITES www.dx-tv.fsnet.co.uk www.test-cards.fsnet.co.uk OUR CATALOGUE INCLUDES ANTENNAS, NOTCH FILTERS, PHASING UNITS, AMPLIFIERS, TELERADIO NEWS (DX-ING, TEST CARDS & NOSTALGIA) MAGAZINE TV CLOCKS, BOOKS & DVDs THANK YOU FOR ACCESSING THIS PDF ABOUT TV & FM DX-ING AND NOSTALGIA If you’ve recently had problems contacting us or wondering where our websites had disappeared to, the reason is simple. EE (BT) decided to pull the plug on ALL ‘fsnet websites (including ours without prior warning) and also ‘fsnet’ email addresses. Anyone attempting to access an ‘fsnet’ website is diverted to EE’s sales without any explanation or apology! HS Publications was established in 1975 when Keith Hamer and Garry Smith launched ‘Guide to Worldwide Television Test Cards’, a World-wide seller. Our involvement in the long-distance TV reception hobby and a massive interest in TV graphics, especially test cards, has generated quite a following over the past 50 years. Requests for non-mainstream products from other enthusiasts involved with both hobbies created a situation where HS Publications has been able to offer these specialised products. Below are some of the many products we can supply:- TV & FM DX-ING • FM Notch Filter, Rejector, Phasing Kit • Antennas: BAND I, FM, Band III, DAB & Airband • Telescopic Dipoles & UHF/VHF Survey Antennas • Amplifiers, Distribution & Power Units • Band I Notch Filters, Band II Rejector • 4G Filters, UHF Bandpass, Combiners/Splitters • Coax, Connectors, Plugs, RF & AV leads • Mast Parts including Pivots, Brackets & Clamps. -
Active Electromagnetic Attacks on Secure Hardware
UCAM-CL-TR-811 Technical Report ISSN 1476-2986 Number 811 Computer Laboratory Active electromagnetic attacks on secure hardware A. Theodore Markettos December 2011 15 JJ Thomson Avenue Cambridge CB3 0FD United Kingdom phone +44 1223 763500 http://www.cl.cam.ac.uk/ c 2011 A. Theodore Markettos This technical report is based on a dissertation submitted March 2010 by the author for the degree of Doctor of Philosophy to the University of Cambridge, Clare Hall. Technical reports published by the University of Cambridge Computer Laboratory are freely available via the Internet: http://www.cl.cam.ac.uk/techreports/ ISSN 1476-2986 Active electromagnetic attacks on secure hardware A. Theodore Markettos Summary The field of side-channel attacks on cryptographic hardware has been extensively studied. In many cases it is easier to derive the secret key from these attacks than to break the cryptography itself. One such side- channel attack is the electromagnetic side-channel attack, giving rise to electromagnetic analysis (EMA). EMA, when otherwise known as ‘TEMPEST’ or ‘compromising eman- ations’, has a long history in the military context over almost the whole of the twentieth century. The US military also mention three related at- tacks, believed to be: HIJACK (modulation of secret data onto conducted signals), NONSTOP (modulation of secret data onto radiated signals) and TEAPOT (intentional malicious emissions). In this thesis I perform a fusion of TEAPOT and HIJACK/NONSTOP techniques on secure integrated circuits. An attacker is able to introduce one or more frequencies into a cryptographic system with the intention of forcing it to misbehave or to radiate secrets. -
Subjective Refraction and Prescribing Glasses
Subjective Refraction and Prescribing Glasses The Number One (or Number Two) Guide to Practical Techniques and Principles Richard J. Kolker, MD Subjective Refraction and Prescribing Glasses: Guide to Practical Techniques and Principles November 2014 The author states that he has no financial or other relationship with the manufacturer of any commercial product or provider of any commercial service discussed in the material he contributed to this publication or with the manufacturer or provider of any competing product or service. Initial Reviews "Wow, a fantastic resource! Giants like you and David Guyton who can make refraction understandable and enjoyable are key. This book will make it so much easier for our residents." —Tara A. Uhler, MD Director, Resident Education Wills Eye Hospital "Subjective Refraction and Prescribing Glasses: Guide to Practical Techniques and Principles is really awesome." —Jean R. Hausheer, MD, FACS Clinical Professor Dean McGee Eye Institute Many thanks for volunteering your time and expertise for the benefit of resident education. —Richard Zorab Vice President of Clinical Education American Academy of Ophthalmology Copyright © 2015 Richard J. Kolker, MD All rights reserved. 2 Subjective Refraction and Prescribing Glasses: Guide to Practical Techniques and Principles Contents About the Author, Acknowledgments 4 Foreword by David L. Guyton, MD 5 Preface 6 Introduction 7 1. Practical Optics • Goal of Refraction, Six Principles of Refraction, Snellen Visual Acuity 8 • Spherical Refractive Errors 9 • Astigmatism -
Tv & Fm Dx-Ing Tv & Radio Nostalgia Hs Publications
HS CATALOGUE 2017 TV & FM DX-ING TV & RADIO NOSTALGIA LOTS OF EXCLUSIVE PRODUCTS! HS PUBLICATIONS 7 Epping Close, Derby DE22 4HR, UK FOR THE LATEST VERSION OF OUR FULL CATALOGUE PDF AND CURRENT PRICES E-mail: [email protected] 1 Thank you for accessing this pdf. Just to put you in the picture, HS Publications was established in 1975 when Keith Hamer and Garry Smith launched ‘Guide to Worldwide Television Test Cards’, a World-wide seller. Our involvement in the DX-TV hobby and a massive interest in TV graphics, especially test cards, has attracted quite a following over the past 45 years. Requests for non-mainstream products from other enthusiasts involved with both hobbies created a situation where HS Publications has been able to offer these specialised products. Today, many products are unique and exclusive to HS Publications . A selection of catalogue items are featured within the sample TeleRadio News magazine featured later. Feel free to request the latest version of our full catalogue pdf or just comment on your hobby interests and experiences. E-mail: [email protected] Below are some of the many products that we can supply:- TV & FM DX-ING • FM Notch Filter, Rejector, Phasing Kit • Telescopic Dipoles & UHF/VHF Survey Antennas • D100 & D500 DX-TV Converters: • Antennas: BAND I, FM, Band III, DAB & Airband • Amplifiers, Distribution & Power Units • Band I Notch Filters, Band II Rejector • 4G Filters, UHF Bandpass, Combiners/Splitters • Coax, Connectors, Plugs, RF & AV leads • Mast Parts, Brackets & Clamps: Pages TV & RADIO NOSTALGIA TeleRadio News, Archive Broadcasting, Broadcasting History in Print magazine packs, Books, DVDs, Test Card Music CDs, Clocks and Test Card Pictures Information within this pdf Copyright HS Publications March 2017. -
Ird BWS Images *******
Rosa Menkman Beyond Resolution !LXIII !LXVII Refuse to let the syntaxes of (a) history direct our futures !I Colophon Beyond Resolution is compiled of texts that have been extended and reworked by Rosa Menkman, 2115 – 2020. Published by the i.R.D. A pdf of this publication can be freely downloaded at: https://beyondresolution.info/beyond-resolution For more information please contact me: [email protected] ISBN: 978-90-828273-0-9 COPY < IT > RIGHT ! A warm thank you for the support I have received: Transfer Gallery: Kelani Nichole Akademie Schloss Solitude: Jean-Baptiste Joly, Clara Herrmann, Mareen Wrobel and Bruce Sterling, Taietzel Ticalos and Jakob Weiss Ward Janssen and Mieke Gerritzen Landers: Per Platou, Amsterdam: Annette Wolfsberger. Tokyo: CG-Arts (Japan Media Arts Festival), the ICC and ARTnSHELTER Oregon Story Board, Upfor Gallery, EyeBeam: Tomas Wester and Teo Downes-Le Guin DiMoDA: Will Robertson and Alfredo Salazar Caro #Additivism: Daniel Rourke and Morehshin Allahyari Parallax, Brett Wallace, Lune Magazine: Nathan Jones Nora ní Mhurchú and Bogomir Doringer A4 and Matus Kobolka Transmediale: Kristofer Gansing Kunsthochschule Kassel: Joel Baumann and my students CERN and Fabra i Coats SJSU and L’Unique Caen Mario de Vega Lotte, Ben, Caspar Menkman Crum Beyond Resolution is supported by Stimuleringsfonds Creatieve Industrie !II BEYOND RESOLUTION Introduction 0000 Whiteout 0001 Behind White Shadows 0010 Night of the Unexpected 0011 Refuse to Let the Syntaxes of (a) History Direct Our Futures 0100 institutions of Resolution Disputes [i.R.D.] Conclusion !I “the pandemic of mental anguish that aficts our time cannot be properly understood, or healed, if viewed as a private problem sufered by damaged individuals.” - Mark Fisher. -
Vision Procedures Manual
Vision Procedures Manual January 2008 TABLE OF CONTENTS Chapter Page 1 INTRODUCTION ........................................................................................... 1-1 1.1 Overview of Vision Examination Component.................................... 1-1 1.2 General Overview of Procedures........................................................ 1-1 2 EQUIPMENT .................................................................................................. 2-1 2.1 Description of Examination Room in the MEC.................................. 2-1 2.2 Description of Equipment and Supplies ............................................. 2-1 2.2.1 The Lensmeter..................................................................... 2-2 2.2.2 The Autorefractor/Keratometer........................................... 2-2 2.3 Equipment Setup Procedures .............................................................. 2-2 2.3.1 Start of Stand Procedures.................................................... 2-2 2.3.2 Calibration – Lensmeter...................................................... 2-3 2.3.3 Calibration – Autorefractor................................................. 2-10 2.3.4 Tolerance............................................................................. 2-12 2.4 Recording in ISIS................................................................................ 2-12 2.4.1 Start of Stand Quality Control............................................. 2-12 2.4.2 Daily Quality Control......................................................... -
The China Girl on the Margins of Film
Kodachrome test strips. C. 1935. Downloaded from http://www.mitpressjournals.org/doi/pdf/10.1162/OCTO_a_00228 by guest on 25 September 2021 The China Girl on the Margins of Film GENEvIEvE YUE In 2005, at the Fogg Art Museum at Harvard University, Julie Buck and Karin Segal exhibited Girls on Film , a series of seventy photographs blown up from “China Girl” frames the two artists and archivists had collected while working at the Harvard Film Archive. The show gave visibility to an unusual type of technical image used in film laboratories: typically an image of a woman positioned next to color swatches and patches of white, gray, and black. The China Girl, sometimes called the China Doll, China Lady, girl head, or any number of lab-specific nick - names like Ullie, Marcie, Shirley, and Lilly, was used from the late 1920s until the early ’90s, and continues in limited use today. It appears in every country with a major film industry, including the United States, France, Germany, Italy, China, Korea, Japan, and India. In Western nations, the China Girl is almost always female, young, conventionally attractive, and, despite the racial connotations of the name, white. In film laboratories, it is an essential part of quality-control processes, used to calibrate the desired exposure and color balance of film reels as well as the functionality of developing and printing machines. It has analogues in still photography and computer technologies as well. 1 Buck and Segal hoped that former China Girl models might come forward and identify themselves, as China Girls were never credited for their roles.