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The stress corrosion properties of 3CR12 were evaluated in various media by means of potentiodynamic scanning and the slow strain rate techniques. In general 3CR12 shows good resistance to stress corrosion except in hot chloride solutions above 100°C.
IF the most effective use is to be made of aircraft in Canada in the future, adequate research facilities must be provided to assist designers and the industry to develop…
IF the most effective use is to be made of aircraft in Canada in the future, adequate research facilities must be provided to assist designers and the industry to develop improved aircraft, suited to the conditions and requirements of the country, and to solve the problems arising in Canadian aviation. The National Research Council has, therefore, with the approval of the Sub‐Committee of the Privy Council for Scientific and Industrial Research, undertaken to provide, in the National Research Laboratories now being established in Ottawa, facilities for aeronautical research.
AVIATION has played and is playing an important part in the economic development of the Dominion of Canada. The mapping of huge areas has been accomplished with aircraft…
AVIATION has played and is playing an important part in the economic development of the Dominion of Canada. The mapping of huge areas has been accomplished with aircraft and the instruments and techniques of air survey and map plotting have been brought to a high state of development in the Dominion. Geological exploration has been facilitated and greatly accelerated by the aeroplane and air transport plays an indispensable role in connexion with northern mining operations. Aerial forest patrol and timber cruising arc widely used in the protection and development of the vast timber resources. In the far north the aeroplane provides a vital service to outlying posts and settlements, meteorological stations and trappers. In the organized air transport of passengers, mail and express, Canadian operations have developed from modest beginnings to the present continental network and services to the United Kingdom, Bermuda and the West Indies. The operational record of the scheduled services, in traffic, economy and safety, is impressive.
IT has been found by model tests that the lift of a combination of an aeroplane body and a wing is not in general equal to the sum of the lifts of the two components when…
IT has been found by model tests that the lift of a combination of an aeroplane body and a wing is not in general equal to the sum of the lifts of the two components when tested separately. This difference is broadly referred to as an interference effect. It is dependent on a number of factors which can be generalised into three groups:—
Aslib is most fortunate this year to have secured the services as President of Sir Lindor Brown, Waynflete Professor of Physiology in the University of Oxford and…
Aslib is most fortunate this year to have secured the services as President of Sir Lindor Brown, Waynflete Professor of Physiology in the University of Oxford and Biological Secretary of the Royal Society. It will be remembered that Sir Lindor gave the opening address at the International Conference on Scientific Information held in Washington in November 1958, and that he has been Chairman of the Consultative Committee for the National Lending Library for Science and Technology since its formation.
The orientation of a rigid body is described by a position‐tensor, composed of three unit vector axes fixed in the body; rotation is effected by tensor transformations in…
The orientation of a rigid body is described by a position‐tensor, composed of three unit vector axes fixed in the body; rotation is effected by tensor transformations in which a rotational operator is a Cartesian matrix, formed from the co‐ordinates of the pivot axis and components of the angle of rotation; rotational sequences are represented by matrix products. Three practical applications are discussed: sequences of aircraft manoeuvres, which include composite rotations of roll and pitch, or roll, pitch and yaw, applied simultaneously; the variation of sweep, incidence and dihedral of a wing moving on any axis fixed in the aircraft; the direction of the pivot axis and the angle of rotation in the motion of a retractable undercarriage between two specified positions.
Outlines the requirements and methods of assessment of soundinsulation in dwellings, as ordered by Part E of the BuildingRegulations 1985. Explores the origins of the…
Outlines the requirements and methods of assessment of sound insulation in dwellings, as ordered by Part E of the Building Regulations 1985. Explores the origins of the performance standard and comments on the performance achieved in practice. Summarizes present proposals to increase the scope of Part E by means of a case study of a remedial exercise to improve poor sound insulation in newly built flats.
An Official Announcement Regarding the Formation of the National Aeronautical Research Committee and the New National Aeronautical Research Establishment at Uplands
This study aims to answer two research questions, namely, what kinds of mundane resistance practices emerge in the local food system and which spatial, material and social…
This study aims to answer two research questions, namely, what kinds of mundane resistance practices emerge in the local food system and which spatial, material and social elements catalyse the resistance practices.
The study adopts a post-humanist practice approach and focusses on exploring the agentic capacity of socio-material elements to generate resistance practices. The data were generated through a multi-method approach of interviews, field observations and Facebook discussions collected between 2014 and 2017.
The empirical context is the rejäl konsumtion local food network in Finland. The analysis presents two types of resisting practices – resisting facelessness and resisting carelessness – which are connected to spatial, material and social elements.
The study focusses on one local food system, highlighting the socio-material structuring of resistance in this specific cultural setting.
The practical implications highlight that recognising the socio-material elements provides tools for better engagement of consumer actors with local food systems.
The study adds to the extant research by interweaving the consumer resistance literature and local food systems discussions with the neo-material approach. The findings present a more nuanced understanding of the ways in which consumer resistance is actualised in a non-recreational, mundane context of consumption. Consequently, the study offers new insights into the agentic socio-material actors structuring the local food system.