6,787 Works

A calculation of the magnetic field produced by the rolling motion of a non-magnetic conducting ship's hull in the earth's magnetic field

N. L. Kusters & W. J. M. Moore

Protocols for building condition assessment

Classified progress report no. 10: July-September 1957

Design of a diplexing filter for the high resolution IFF antenna of the AN/FPS-3 radar

J.H. Craven

A broad-band HF antenna system for the St. Laurent destroyer escort conversion class DDE 205 C

J. Y. Wong

An all-sky intensity recorder for the 1 to 2u wavelength region

R.L. Gattinger
A photometer which detects radiation from the night air­glow in the wavelength range from 1 to 2 J.1. was designed, constructed, and tested. The visible hemisphere of the sky is scanned by the field of view of the photometer by means of a mechanical scanning base to determine whether spatial brightness variations occur in the infrared radiations from the night airglow. The system was tested throughout the night of June 21/22, 1965 and was found...

Photoelectric tracking of model ships

W. Wyslouzil
Photoelectric tracking is employed for automatic plotting of the course of a model ship undergoing trials in a manoeuvring basin. A light source mounted on the model is followed by two light-seeking telescopes, installed "on shore", whose direction is transmitted to the display by means of three-phase synchros. An electric "pen" is positioned on the display area to correspond to the model's position, which can then be marked on paper at regular intervals.

Integrated circuit switching design for a 1280-lamp matrix

T.H. Shepertycki
This report describes the manner in which digital integrated circuits and silicon-controlled rectifiers are used to control and switch the currents through selected lamps of a 1280-lamp matrix that was chosen by the National Design Council of Canada as one of the items in a traveling display.

Experimental blasting studies on structures

A.T. Edwards & T.D. Northwood
The results are presented or controlled blasting tests on a total or six buildings on two different soils. Damage was corre­ lated, with size of charge and distance, and with displacement, velocity, accelera­ tion, settlement, and strain measurements in the buildings. Peak velocity appears to provide the best correlation with damage for all soil conditions.

College innovation centre opens doors for SME digital technology adoption: case study

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Joint meeting of the International Scientific Radio Union (U.S.A. National Committee) and the Professional Group on Antennas and Wave Propagation of the Institute of Radio Engineers: held at Washington, D.C., April 17, 18 and 19, 1950

R.S. Rettie
International Scientific Radio Union (U.S.A. National Committee) and the Professional Group on Antennas and Wave Propagation of the Institute of Radio Engineers, April 17-19, 1950, Washington, D.C.

Monitor van distance-measuring equipment

F.R. Hunt
The Canadian Armed Services have an R-F Signal Monitor Van which frequently operates in conjunction with a test aircraft. The Services requested aid from the National Research Council in developing a system to measure and record the range of this aircraft automatically. The new system uses surplus beacon components and a commercially available time-interval unit. A suitable corner-reflector antenna was designed and built by the National Research Council for the equipment. The maximum error of...

Operation manual for the Black Brant III-IV plasma probe experiment

A.G. McNamara
Assembly, checkout, and countdown procedures for the Black Brant III/IV plasma probe experiment are described. Normal preflight voltages, currents, and output signal characteristics are given to enable diagnostic decisions to be made concerning the package. The preflight probe check and calibration procedure is outlined.

Operation manual for the Black Brant V plasma probe experiment

A.G. McNamara
Assembly, checkout, and countdown procedures for the Black Brant V plasma probe experiment are described. Normal preflight voltages, currents, and output signal characteristics are given to enable diagnostic decisions to be made concerning the package. The preflight probe check and calibraiton procedure is outlined.

Radiation patterns of scale-model FM antenna

W. Lavrench
A scale model of an FM antenna to be used by the Canadian Broadcasting Corporation has been built and tested on a scale-model tower. The model antenna was scaled from the 12-element Multi-V FM antenna of the Andrew Antenna Co., Ltd. The azimuth radiation pattern of the antenna alone is essentially circular. The object of the tests was to position the antenna on the tower so that the circularity of the pattern would be preserved....

Telemetry systems for gun-launched upper atmosphere probes

J.K. Pulfer
The Radio and Electrical Engineering Division of the National Research Council and Computing Devices of Canada Limited have jointly undertaken a study of the various aspects of telemetry systems suitable for use in gun-launched upper atmosphere probes. This report describes some of the results of the study. The types of experiment currently being conducted in rockets and balloons are listed, and the problems encountered in performing them in a high-g environment are considered. Some conclusions...

Digital data-recording system for luminescence spectra

F.V. Cairns & G. Bechthold
A detailed description of a system for automatically recording the data needed to study luminescence spectra is given. The system consists of digitiing and formatting devices and an incremental tape recorder. The magnetic tapes produced by the recorder may be read by a System 360 tape reader.

Absoption and reflection by lossy chaff

R.W. Breithaupt
The transmission and backscattering properties of a chaff layer composed of thin, lossy elements are considered. A simple mathematical model of this layer predicts that arbitrarily low backscatter can be achieved, provided that enough elements of sufficiently low conductivity and small diameter are dispersed uniformly.

National Research Council Canada audit of investment planning

The objective of this audit is to provide NRC senior management with assurance that an adequate management control framework is in place to effectively support investment planning in a manner that is compliant with applicable Government of Canada and NRC policies, procedures and regulations.

Evaluation of the Digital Technology Adoption Pilot Program

As part of the Government’s commitment to developing a Digital Economy Strategy, Budget 2011 announced measures to accelerate the adoption of digital technologies, build digital skills and showcase Canada’s digital technologies. This included the development of the Digital Technology Adoption Pilot Program (DTAPP). The objective of DTAPP is to accelerate the adoption of digital technologies in small- and medium-sized enterprises (SMEs) operating in Canada so they can boost their productivity and create economic growth and...

Rapport ministériel sur le rendement Conseil national de recherches Canada : 2013-2014

Le rapport ministériel sur le rendement fait partie de la série de documents budgétaires. Ces documents appuient les lois de crédits, qui précisent les montants pouvant être dépensés par le gouvernement et à quelles fins générales. Les documents budgétaires comptent trois parties.

Conseil national de recherches Canada vérification continue des approvisionnements et des marchés 2012-2013

Le présent rapport de vérification fait état des résultats de la Vérification continue des approvisionnements et des marchés de 2012-2013 du Conseil national de recherches du Canada (CNRC).

Conseil national de recherches Canada vérification du Cadre de contrôle de la gestion financière: achats de TI : vérification interne, CNRC

La vérification avait comme objectif global d’établir si le Cadre de contrôle de la gestion financière du CNRC appuie de manière satisfaisante les décisions de la direction en ce qui concerne les achats de technologies de l’information (TI) afin qu’elles soient conformes aux politiques, directives et lignes directrices du gouvernement du Canada et du CNRC.

Conseil national de recherches Canada : rapport financier trimestriel pour le trimestre se terminant le 30 juin 2012 (non-vérifié)

Ce rapport financier trimestriel ministériel traduit les résultats de la période comptable en cours pour ce qui est du Budget principal des dépenses et les Budgets supplémentaires des dépenses (A).

Traduction automatique: avantages et retombées de la traduction automatique statistique et le logiciel Portage du CNRC

La traduction automatique a connu des progrès remarquables ces dernières années, surtout depuis l’avènement du nouveau paradigme statistique. Le logiciel Portage du CNRC figure parmi les meilleurs systèmes de TAS au monde, ainsi qu’on a pu le constater à maintes reprises dans divers concours internationaux. Des importants langagiers du Canada y recourent déjà pour accroître leur rentabilité, alors que des entreprises d’autres secteurs en font présentement l’essai, au même titre que l’armée et les services...

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