Closing remarks

At this second Discussion Meeting on NMR imaging, we have seen a broad range of imaging and spectroscopic activities from imaging of solids, microscopic imaging, high-speed imaging and spectroscopic imaging. It has been 11 years since the first Discussion Meeting, and the object at this meeting was to review the recent developments and consider the future prospects. We have all been amazed by the developments in solid imaging and the quality and resolution that can now be achieved by combining line narrowing methods with gradient pulsing or with gradient modulation. The future for solid imaging with its wide potential is assured. Progress in free radical imaging using proton-electron double resonance was also briefly reviewed. Detection of natural levels of free radicals in biological tissue is some way off, but the progress with this technique is impressive.

2007 ◽  
Vol 111 (1115) ◽  
pp. 1-16 ◽  
Author(s):  
T. J. McIntyre ◽  
H. Kleine ◽  
A. F. P. Houwing

Abstract The application of optical imaging techniques to hypersonic facilities is discussed and examples of experimental measurements are provided. Traditional Schlieren and shadowgraph techniques still remain as inexpensive and easy to use flow visualisation techniques. With the advent of faster cameras, these methods are becoming increasingly important for time-resolved high-speed imaging. Interferometry’s quantitative nature is regularly used to obtain density information about hypersonic flows. Recent developments have seen an extension of the types of flows that can be imaged and the measurement of other flow parameters such as ionisation level. Planar laser induced fluorescence has been used to visualise complex flows and to measure such quantities as temperature and velocity. Future directions for optical imaging are discussed.


Author(s):  
Pierre R. Slangen ◽  
Zacaria Essaidi ◽  
Clement Chanut ◽  
Pierre Lauret ◽  
Frederic Heymes ◽  
...  

1950 ◽  
Vol 54 (477) ◽  
pp. 545-586 ◽  
Author(s):  
J. A. Beavan ◽  
D. W. Holder

Much work has been done on compressible flow since the contribution of the Aerodynamics Division to research in this field was last described to the Society by the late C. N. H. Lock in 1937. At that time he was able to review many of the data which were available from other sources, whereas today such a task would be impossible in a paper of this length. We shall confine ourselves here, therefore, to a description of some of the experimental work that has been done during the past few years in the high-speed laboratory of the Division, and to an account of the lines along which it is intended to continue the work in the future.


A brief review of recent developments in line scan imaging of large objects is given, together with some representative images showing anatomical detail and a discussion of some spin-lattice relaxation time mapping results. Current progress in high speed imaging by means of the echo planar technique is reported and some preliminary results obtained at both 15.0 and 4.0 MHz are discussed.


1996 ◽  
Vol 49 (2) ◽  
pp. 365 ◽  
Author(s):  
Birgit Lohmann

Approximately ten years ago the first experiments were performed in which the Auger electrons produced after inner-shell ionisation of atoms by electron impact were detected in coincidence with the scattered electrons. Only a limited number of such experiments have been performed since that time, mainly due to the very low count rates characteristic of these measurements. Recent developments in the field are discussed and the future prospects for such measurements are considered.


2019 ◽  
Vol 7 (46) ◽  
pp. 7283-7300 ◽  
Author(s):  
Lan Ge ◽  
Qian Liu ◽  
Nan Hao ◽  
Wang Kun

Recent developments of photoelectrochemical biosensors for food analysis are summarized and the future prospects in this field are discussed.


Author(s):  
H Goodison

The paper reviews developments in the British Post Office in the handling and sorting of parcels and packets since 1883 which was the first year of the Post Office parcel service. Recent developments that are described are: high speed parcel and packet sorting machines; voice recognition; high speed container uplift systems; Safeglide chutes and automatic recording and control of bags and containers. The components and parameters of the parcel sorting office of the future are described.


1981 ◽  
Vol 34 (2) ◽  
pp. 165-186 ◽  
Author(s):  
J. A. H. Paffett

This paper, which was presented at an Ordinary Meeting of the Institute held in London on 19 November 1980 with the President in the Chair, first outlines the arguments for simulators for use in training and research. The technical problems encountered in simulating ship behaviour are discussed, and the various engineering approaches which have been used for actual simulator construction are described. An account is given of experience to date with ship simulators in the UK, and the future prospects for marine application of simulator methods are discussed.


2019 ◽  
Vol 47 (3) ◽  
pp. 196-210
Author(s):  
Meghashyam Panyam ◽  
Beshah Ayalew ◽  
Timothy Rhyne ◽  
Steve Cron ◽  
John Adcox

ABSTRACT This article presents a novel experimental technique for measuring in-plane deformations and vibration modes of a rotating nonpneumatic tire subjected to obstacle impacts. The tire was mounted on a modified quarter-car test rig, which was built around one of the drums of a 500-horse power chassis dynamometer at Clemson University's International Center for Automotive Research. A series of experiments were conducted using a high-speed camera to capture the event of the rotating tire coming into contact with a cleat attached to the surface of the drum. The resulting video was processed using a two-dimensional digital image correlation algorithm to obtain in-plane radial and tangential deformation fields of the tire. The dynamic mode decomposition algorithm was implemented on the deformation fields to extract the dominant frequencies that were excited in the tire upon contact with the cleat. It was observed that the deformations and the modal frequencies estimated using this method were within a reasonable range of expected values. In general, the results indicate that the method used in this study can be a useful tool in measuring in-plane deformations of rolling tires without the need for additional sensors and wiring.


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