HOW TO TALK TO AN ANGRY CUSTOMER

In the work presented the potential of a pyrometric process control during laser beam soldering will be enhanced. Primarily we have developed a processing head with an integrated up-to-date pyrometric sensor conditioned for the temperature range of soft soldering. Using high speed photography we have analysed the detected secondary emissions during laser beam soldering and correlated the acquired pyrometric signals of process emissions with processes sequencing. Finally we named different strategies and control methods to achieve reliable high quality solder joints implementing a pyrometric process control

George J. Mitchell: Maine\u27s Environmental Senator

The State of Maine is blessed with a history of impressive and respected politicians. Among others, the list includes James Blaine, Margaret Chase Smith, and Edmund S. Muskie. The State now must add the name of George J. Mitchell to these ranks. A native son of Waterville, Maine, he attended Bowdoin College, Georgetown University Law Center, and eventually catapulted himself into one of the most powerful political positions in the United States government when he was elected as majority leader of the United States Senate. During his tenure as majority leader, he helped to redefine the position through his strong work ethic, sense of fairness, and orientation toward results in the Senate. This Comment summarizes some of those results through an environmental lens, focusing on Mitchell\u27s contributions to federal environmental legislation in the late 1980s. As Mitchell served in the Senate for fourteen years, six as the majority leader, he sponsored or cosponsored countless pieces of legislation. Environmental protection, however, always was a focus of his public service. In that vein, this Comment canvasses Senator Mitchell\u27s influence on the provisions of the Water Quality Act of 1987, the Clean Air Act Amendments of 1990, and the Oil Pollution Act of 1990, three major legislative accomplishments aimed at protecting the environment. This Comment analyzes those provisions of each Act for which Senator Mitchell fought most ardently and discusses the different tactics and strategies he employed to secure passage of each of these important bills. Finally, this Comment is a tribute to a Maine native who dedicated his life to public service. This Author recognizes that no one Senator could be solely responsible for any of these three pieces of environmental legislation. Nonetheless, only a few Senators held the key to passage of each of these acts. George J. Mitchell was one of the those Senators. Senator Mitchell\u27s contributions to environmental law can be understood only by viewing his Senate career in context. First, Mitchell served as a Federal District Court Judge for the District of Maine

Alien Registration- Bosse, Marie R. (Lewiston, Androscoggin County)

https://digitalmaine.com/alien_docs/30585/thumbnail.jp

Keyframe-based visual–inertial odometry using nonlinear optimization

Combining visual and inertial measurements has become popular in mobile robotics, since the two sensing modalities offer complementary characteristics that make them the ideal choice for accurate visual–inertial odometry or simultaneous localization and mapping (SLAM). While historically the problem has been addressed with filtering, advancements in visual estimation suggest that nonlinear optimization offers superior accuracy, while still tractable in complexity thanks to the sparsity of the underlying problem. Taking inspiration from these findings, we formulate a rigorously probabilistic cost function that combines reprojection errors of landmarks and inertial terms. The problem is kept tractable and thus ensuring real-time operation by limiting the optimization to a bounded window of keyframes through marginalization. Keyframes may be spaced in time by arbitrary intervals, while still related by linearized inertial terms. We present evaluation results on complementary datasets recorded with our custom-built stereo visual–inertial hardware that accurately synchronizes accelerometer and gyroscope measurements with imagery. A comparison of both a stereo and monocular version of our algorithm with and without online extrinsics estimation is shown with respect to ground truth. Furthermore, we compare the performance to an implementation of a state-of-the-art stochastic cloning sliding-window filter. This competitive reference implementation performs tightly coupled filtering-based visual–inertial odometry. While our approach declaredly demands more computation, we show its superior performance in terms of accuracy

Analytical pair correlations in ideal quantum gases: Temperature-dependent bunching and antibunching

The fluctuation-dissipation theorem together with the exact density response spectrum for ideal quantum gases has been utilized to yield a new expression for the static structure factor, which we use to derive exact analytical expressions for the temperature{dependent pair distribution function g(r) of the ideal gases. The plots of bosonic and fermionic g(r) display "Bose pile" and "Fermi hole" typically akin to bunching and antibunching as observed experimentally for ultracold atomic gases. The behavior of spin-scaled pair correlation for fermions is almost featureless but bosons show a rich structure including long-range correlations near T_c. The coherent state at T=0 shows no correlation at all, just like single-mode lasers. The depicted decreasing trend in correlation with decrease in temperature for T < T_c should be observable in accurate experiments.Comment: 8 pages, 1 figure, minor revisio

The development of children's political competence in a primary school: A quest

This research explores how children recount and account for their developing political competence at primary school. To access participants’ experience and perceptions of political participation and agency and the structures and practices within which they operate, I designed a post-structurally informed ethnographic study for a large junior school in the South West of England. The result was a range of qualitative and participative data gathering methods which emphasised the importance and value of children’s voices and testimony: interviews, observations, diaries, analytical discussions and ethnographic field notes. The resulting data comprise a collection of participant accounts and interpretations of living and learning in school. In contrast to my research approach, my findings identify a construction of the child as deficient, incompetent and untrustworthy, destabilising children’s emergent confidence as political beings and severely limiting the effectiveness of educational initiatives to engage them in active political participation. As a result, forms of political participation and self-expression are muted: children are encouraged to develop a conservative, self-preserving form of agency hidden from view and often characterised by self-doubt and self-suppression, counter to curricular expectations of political participation in school and community life. However, using Foucauldian theoretical tools, I argue that some children’s responses to the pressure of the school’s normalising structures and practices creatively build an effective, but subaltern, political competence, allowing children to exercise agency in strategic conformity and resistance. Being unrecognised, though, outside the surveillance of the curriculum and its enforcers, this learning is not readily available for teachers and the school to engage with and nurture. This presents both a missed opportunity for primary education and a threat to the stability and sustainability of children’s credible political agency. Empowering children requires seeing them as politically capable and competent, rather than lesser adults, deficient and lacking in citizenship competence

Permanent out-of-plane distortions of paper printed in heat-set web offset

Paper, a flat material, frequently with a coated surface, is made out of fibres. In heat-set offset printing a permanent out-of-plane distortion, the so-called washboard effect, occurs quite frequently, which is clearly visible in a lot of web printed products. In the last few decades manufacturers of heat-set dryers have tried to eliminate this washboard by different constructive measures without any real improvement. Views on this washboard have shown a dependency on various physical properties of the web. In printing practice it can be shown that the washboard is caused by the combination of tension, heating and cooling the paper. The washboard occurs when the paper is not flattened when cooled