Search results

The use of lasers to selectively solder joints in electronic assemblies has a number of advantages over methods which involve heating of the whole assembly. However, the localised energy delivery means that the heating and melting behaviour of the solder is particularly dependent on external and process influences. This paper aims to propose a new approach to monitoring and feedback control of the melting process through image acquisition and processing.

In order to evaluate the proposed feedback strategy, a series of experiments have been performed using a semiconductor diode laser controlled by a PC, which also performs image acquisition and processing operations. Two main processing techniques, based on edge detection and Fourier analysis, have been evaluated.

It has been shown that the proposed technique is capable of controlling laser pulse duration to correct for variations in joint geometry, material parameters and laser energy delivery and results in more consistent solder joint formation than is achieved using fixed pulse durations.

The results demonstrate that image processing is a viable technique for the control of laser soldering processes. This could significantly increase the range of applications of laser soldering techniques where determination and control of pulse parameters have been one of the major challenges.

Although some work has been conducted on the use of pyrometer feedback to control laser processing, it appears that no work has been published on the use of image processing. While the processing algorithms themselves are not novel, this is a new application of these algorithms.

From 1782 to 1834, the English social legislation shifted from a safety net devised to deal with emergencies to a social security system implemented to cope with the threat of unemployment and poverty. In the attempt to explain this shift, this chapter concentrates on the changed attitudes toward poverty and power relationships in eighteenth-century British society. Especially, it looks at the role played by eighteenth-century British economic thinkers in elaborating arguments in favor of reducing the most evident asymmetries of power characterizing the period of transition from Mercantilism to the Classical era. To what extent did economic thinkers contribute to creating an environment within which a social legislation aimed at improving the living conditions of the poor as the one established in 1795 could be not only envisaged but also implemented? In doing so, this chapter deals with an aspect often undervalued and/or overlooked by historians of economic thought: namely, the relationship between economic theory and social legislation. If the latter is the institutional framework by which both individual and collective well-being can be achieved the former cannot but assume a fundamental role as a useful abstraction which sheds light on the multifaceted reality in which social policies are proposed, forged, and eventually implemented.

There is a peculiar problem in the US that is proving to challenge core values that undergird our laws, interpersonal interactions, and challenge the civil rights of many. American society believes in harsh sentences for committing crimes without a system for rehabilitation from crime and absent from resources from a community level to prevent crimes. As crime has declined since the 1990s, policing behavior has grown to a level that reflects a disregard for humanity resulting in police-involved shootings, also known as “justifiable homicides” or deaths by legal intervention. This peculiar problem reifies old notions of racial inferiority and racial profiling that stem from a long history of lynchings in America, and highlights a broken legal system that shows bias toward poor communities and communities not of the racial and ethnic majority. When laws support one racial or ethnic group and those with resources, other communities become invisible and subjected to state-sanctioned violence that allows some police agencies and police officers to engage in behaviors that do not reflect their training foster an overwhelming sense of fear in these communities. We have observed that when communities fear the police and the larger society disbelieves the negative interactions with police, residents have begun to capture police encounters with community members on social media. Despite the video footage that has been collected documenting abuse of power, some police have been granted impunity for their actions, which further fuels fear in these communities. What we propose are ways to frame and solve negative police encounters with communities through an understanding of: (1) racial biases; (2) racial and gender consciousness; (3) ways to provide more equitable policing practices; (4) the enforcement of legal remedies for those who abuse power; and (5) the prevention of acts of discrimination by holding individuals culpable who informally police Black males. We believe these strategies aid in addressing the historical legacy of these behaviors and moves multiple systems and disciplines toward integrated solutions to eliminate “justifiable homicides.”

Communications regarding this column should be addressed to Mrs. Cheney, Peabody Library School, Nashville, Tenn. 37203. Mrs. Cheney does not sell the books listed here. They are available through normal trade sources. Mrs. Cheney, being a member of the editorial board of Pierian Press, will not review Pierian Press reference books in this column. Descriptions of Pierian Press reference books will be included elsewhere in this publication.

The increased use of checks in nonlocal payments at the end of the nineteenth century presented problems for their clearing and collection. Checks were required to be paid in full (at par) only when presented directly to the drawn-upon bank at its counter. Consequently, many, primarily rural or small-town, banks began to charge remittance fees on checks not presented for collection in person. Such fees and the alleged circuitous routing of checks in the process of collection to avoid them were widely criticized defects of the pre-Federal Reserve payments system. As the new Federal Reserve established its own system for check clearing and collection, it also took as an implicit mandate the promotion of universal par clearing and collection. The result was a bitter struggle with non-par banks, the numbers of which initially shrunk dramatically but then rebounded. A 1923 Supreme Court decision ended the Fed’s active (or coercive) pursuit of universal par clearing, and non-par banking persisted thereafter for decades. Not until the Monetary Control Act of 1980 was universal par clearing and true monetary union, in which standard means of payment are accepted at par everywhere, achieved.

On 2 September 2015, it was announced that Tom Ford would again be ‘dressing James Bond’, Daniel Craig, in Spectre (Mendes, 2015) after tailoring his suits for Quantum of Solace (Forster, 2008) and Skyfall (Mendes, 2012). Ford noted that ‘James Bond epitomises the Tom Ford man in his elegance, style and love of luxury. It is an honour to move forward with this iconic character’.

  With the press launch of ‘Bond 25’(and now titled No Time to Die) on 25 April 2019, it is reasonable to speculate that Ford will once again be employed as James Bond’s tailor of choice, given that it is likely to be Craig’s last outing as 007. Previous actors playing the role of James Bond have all had different tailors. Sean Connery was tailored by Anthony Sinclair and George Lazenby by Dimitro ‘Dimi’ Major. Roger Moore recommended his own personal tailors Cyril Castle, Angelo Vitucci and Douglas Hayward. For Timothy Dalton, Stefano Ricci provided the suits, and Pierce Brosnan was dressed by Brioni. Therefore, this chapter will analyse the role of tailoring within the James Bond films, and how this in turn contributes to the look and character of this film franchise more generally. It aims to understand how different tailors have contributed to the masculinity of Bond: an agent dressed to thrill as well as to kill.