A Survey of Measurement and Control of Pollutants

1971 ◽  
Vol 4 (10) ◽  
pp. T163-T172
Author(s):  
D. J. Garrod

When the title of the symposium was first decided, the organising committee considered that a general survey of the subject was required so that (a) they would be in a position to judge whether or not the papers received were a reasonable cross section of the subject, and (b) it could be used to indicate to the delegates where the subject of the individual speakers comes within the general picture. Unfortunately, there was none readily available, and therefore the author as a member of the organising committee, decided to formulate such a survey. Some parts of the survey are not as detailed or informative as intended, and the author would be grateful for advice on any errors or omissions which are noticed.

1998 ◽  
Vol 27 ◽  
pp. 209-232 ◽  
Author(s):  
Katherine O'Brien O'Keeffe

This article explores some textual dimensions of what I argue is a crucial moment in the history of the Anglo-Saxon subject. For purposes of temporal triangulation, I would locate this moment between roughly 970 and 1035, though these dates function merely as crude, if potent, signposts: the years 970×973 mark the adoption of the Regularis concordia, the ecclesiastical agreement on the practice of a reformed (and markedly continental) monasticism, and 1035 marks the death of Cnut, the Danish king of England, whose laws encode a change in the understanding of the individual before the law. These dates bracket a rich and chaotic time in England: the apex of the project of reform, a flourishing monastic culture, efflorescence of both Latin and vernacular literatures, remarkable manuscript production, but also the renewal of the Viking wars that seemed at times to be signs of the apocalypse and that ultimately would put a Dane on the throne of England. These dates point to two powerful and continuing sets of interests in late Anglo-Saxon England, ecclesiastical and secular, monastic and royal, whose relationships were never simple. This exploration of the subject in Anglo-Saxon England as it is illuminated by the law draws on texts associated with each of these interests and argues their interconnection. Its point of departure will be the body – the way it is configured, regarded, regulated and read in late Anglo-Saxon England. It focuses in particular on the use to which the body is put in juridical discourse: both the increasing role of the body in schemes of inquiry and of punishment and the ways in which the body comes to be used to know and control the subject.


1988 ◽  
Vol 117 ◽  
Author(s):  
Mansoor A. Khan ◽  
Charly Allemand ◽  
Thomas W. Eagar

The accurate measurement and control of temperature can be of great importance in most materials manufacturing and processing applications. With present-day technology such measurement almost always requires either physical contact with the subject or an extensive calibration procedure. In many cases contact is either not desirable, because such contact may significantly alter the temperature or other characteristics of the subject, or is not possible because the subject is moving, is too far away, is too hot or is in an otherwise hostile environment. Similarly calibration may not be possible if the characteristics change too much.


2012 ◽  
Vol 507 ◽  
pp. 252-259
Author(s):  
Jian Min Zhu ◽  
Xiao Ru Li ◽  
Hai Wei Li

In allusion to the measurement and control system of the fracture traumatic cross-section stress, because of the manufacturing error and installation error of its mechanical components, the axial and radial force of the indicating value of the dynamometer exists at the same time, and the radial force will damage the fracture healing. According to the mechanical structure of the measurement and control system of fracture traumatic cross-section stress, analyzed the mechanics transmission, and established the mechanics transfer model of the stress measurement and control system. Based on the force method typical equations, acquired the unknown force and torque of the measurement and control system. Take the radial force of the indicating value of the fracture two-dimensional dynamometer into the mechanics transfer model expression, thus obtain the result of the fracture traumatic cross-section affected by the radial force that applied by the stress measurement and control system, and then adjust the size and direction of the radial force on the fracture trauma section applied by the stress measurement and control system, and reduce the negative effect of the radial force on fracture healing.


The subject of this paper is of great complexity and it is possible here only to present a superficial general survey. The term ‘infertility’ includes both sub-fertility and absolute sterility. Biologically it implies that the capacity for producing offspring is diminished. Statistically or demographically it implies an observed reduction, irrespective of the cause, in the actual number of offspring produced. The causes of such reduction are varied. For example, an imbecile can be infertile on account of non-survival, he may be incapacitated also by gonadal dysgenesis or he may simply fail to attract a mate; genetically the result is the same. This key observation, the enumeration of total offspring, is a poor index of biological power. In practice it is the only feasible way of measuring biological fertility. It is also a measurement of ‘fitness’ in the genetical sense; indeed, natural selection, for or against a particular gene, is enforced by the actual numbers of offspring produced by the individual parent who carries it.


Author(s):  
Anna Burtnyk ◽  
Marta Karp

The research deals with the study of stylistic and lexical peculiarities of political speeches of American ex-president Bill Clinton. Special attention is given to the individual characteristics of the language of the orator. The novelty of the study concerns detailed analysis, classification and comparison of lexico-semantic stylistic devices based on the speeches of B. Clinton. The object of the research deals with political speeches of B. Clinton including the first inaugural speech (January 20, 1993), farewell address (January 18, 2001), speech on Democratic National Convention (July 26, 2016). The information obtained through the analysis of political speeches helps to trace the influence of the words of a politician used in one context or another in order to establish power, influence and control of the people, as well as to understand the goals and intentions of a politician. The subject of the study describes lexico-semantic stylistic devices of the speeches. The practical value of the work highlights the ability to detect and interpret the use of linguistic means in political speeches. In the paper the main features of B. Clinton’s political speeches and their influence on people’s opinion have been revealed.


Author(s):  
J. Loxham ◽  
J. Purcell

The grinding process is surveyed and a technique is described which enables the efficiency of the grinding wheel, coolant, and machine tool system to be determined. The analysis is made in terms of the maximum possible depth of cut that can be taken by the individual grits of the grinding wheel and the volume of material removed from the workpiece at this loading per unit volume of grinding wheel lost. Suggestions are made for the practical application of the technique to minimize the residual stress which is produced by the grinding operation. The results which have been achieved are shown in graphical form, and suggestions are made for the full explanation of the technique.


1983 ◽  
Vol 16 (2) ◽  
pp. 63-71 ◽  
Author(s):  
B. E. Jones

Modern industry and commerce are dependent on accurate measurement, and there is a need throughout all industry for improvement in measurement skills. The science and technology of measurement is a multi-disciplinary subject, while measurement and control are interdependent. Sufficient and proper teaching and training in the subject, particularly in further and higher education, is unlikely to occur unless the subject becomes established as a systemised discipline in its own right. A set of unifying, underlying, general principles and concepts organised in a logical framework is required, although it is desirable to avoid both the temptation to overtheorise and to produce mere catalogues of devices. Of considerable importance is a suitable means of presenting theoretical and practical knowledge about primary sensing elements and measuring transducers. The paper will consider recent developments that are helping to establish the discipline of measurements.


2021 ◽  
pp. 125-144
Author(s):  
Michał Sobol

The labour inspector’s statement constitutes a non-statutory form of enforcing labour rights. In this context, we can see a variety of problems related both to the impact of the legal measure itself, appealing against it, as well as to the role it plays in ensuring compliance with employment rights. The jurisprudence and literature to date indicates explicitly that the employer’s failure to comply with the content of the labour inspector’s speech does not give rise to any negative legal consequences. Nevertheless, employers who do not agree with the solutions recommended by the authority through the labour inspector’s speech perceive this specific measure as a special type of decision. The decision itself, in turn, seems to be a natural manifestation of the state, the authority indicating to the subject of law the individual directions of its behaviour. However, this is, in fact, a different act. The article doubts the implementation of the model of labour supervision and control assumed by the legislator in the light of the measure outlined in the labour inspector’s speech. As a result, allowing this measure to be left to the inspector’s discretionary use may lead to the reinforcement of the feeling of a lack of efficiency on the part of the state bodies in the field of protection of workers’ rights, especially that the cases of its use are an open catalogue, which includes issues such as working time or the employment of young people. In order to better understand these trends, two examples are discussed where the National Labour Inspectorate had an impact on situations of a gross violation of labour law standards. A de lege ferenda direction has also been indicated, which means the creation of the institution of “re-inspection” of the employer. The existence of a non-authoritative “recommendation”, which is a statement by the labour inspector, is in fact a manifestation of the implementation of Article 17, paragraph 2 of the ILO Convention No. 81, which would not be incompatible with the consequence in the form of addressing a statement.


2015 ◽  
Vol 759 ◽  
pp. 59-69
Author(s):  
Andrzej Sioma

This paper discusses the subject of filtering range images constructed using vision systems. Construction of a range image using the laser triangulation method LTM is burdened by noise resulting from the specificity of the adopted method. This method uses structural illumination, usually in the form of a laser line from the object illumination. The image of the object is captured by a camera, whereupon the laser line image is transformed into height profiles, which are then used to construct a range image of the object. Yet, such images fail to describe the entire surface of the object, due to occlusion. Occlusion of image fragments occurs in two forms. The first one stems from the impossibility to fully illuminate all surfaces of the object, due to occlusion of the laser lines. The second form occurs when the surface is illuminated properly, but the image of this surface cannot be captured by the camera. In both cases, there is an occlusion which usually results from the shape of the object. This paper describes the method of backfilling the data in undefined areas of range images caused to the phenomenon of occlusion. It suggests a method of defining the direction of data backfilling, identification of undefined areas, as well as methods of calculating and backfilling height differences at undefined spots. The purpose of these transformations is to prepare the image for measurement and control tasks. Select examples are presented with the results of image transformation using the developed data backfilling method.


Author(s):  
N. Merk ◽  
A. P. Tomsia ◽  
G. Thomas

A recent development of new ceramic materials for structural applications involves the joining of ceramic compounds to metals. Due to the wetting problem, an interlayer material (brazing alloy) is generally used to achieve the bonding. The nature of the interfaces between such dissimilar materials is the subject of intensive studies and is of utmost importance to obtain a controlled microstructure at the discontinuities to satisfy the demanding properties for engineering applications . The brazing alloy is generally ductile and hence, does not readily fracture. It must also wett the ceramic with similar thermal expansion coefficient to avoid large stresses at joints. In the present work we study mullite-molybdenum composites using a brazing alloy for the weldment.A scanning electron micrograph from the cross section of the joining sequence studied here is presented in Fig. 1.


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