Simulation of Mg sheet press cell materials

Major characteristics of Magnesium alloy are low density (= 1.8 g/cm³) and excellent recyclability; therefore Mg is considered as one of low environmental loading materials. The low-density materials, such as Mg, are suitable for the transportation system to reduce the emission of Co2, save energy resource and increase the safety for accidents like corrosions. In the place, cellular materials like aluminum foams are also low-density materials and can be controlled the stress-strain relation. Combination of Mg alloy and cellular materials, that is Mg cell, is one of the most excellent materials for transportation system, because of its ultra low density. safeties, and recycle ability. To make the Mg cellular materials. there are some problems to solve. One is how to make them uniformly to supply them as same perfonnance materials. One is how to make them inexpensively. Most of cellular materials are very expensive because of there are many processes or special fabrication system to make them. To solve these problems. we investigated the press cell materials. The press cell material consists sheets pressed as cell shape and wall. Therefore, it is very easy to make cellular materials and control validation of the performance of each foam materials. In this paper, we simulated compression tests of this new type of Mg alloy cellular materials under dynamic loading to investigate the relation between the compression speed and the compression behavior to show the shock absorbing capability of this new foam material. It is very important to understand their mechanical properties relatcd with cell shapes and wall to be applied widely.

Press forming performance of galvanneal coated steel

This project quantified the press formability of galvanneal coated steel. A coil of galvanneal coated steel was produced containing various coating structures. Using different lubricants, the powdering, friction and forming properties were determined. It was found that optimum formability was obtained by effective lubrication while galvanneal coating structure controlled powdering resistance.

The leaders and the press

Overall, as in 2001 and 2004, the print media provided substantial coverage of the election campaign; and, as in recent campaigns, the Prime Minister received greater coverage than the Opposition Leader. As in previous campaign coverage a small number of topics—including opinion polling—generated the majority of stories. Two features were different in the 2007 campaign, namely the gradual increase in the number of positive stories about the Opposition Leader; and an increase in the number of negative stories about and unflattering images of the Prime Minister.

The role of the press in Iraq's long struggle for democratic reform

The toppling of Saddam in 2003 has seen Iraq shift from only a handful of state organs that served as propaganda machines, to a wealth of over 200 Iraqi-owned newspapers which are being fervently produced and avidly read on the streets of the nation. This paper traces the introduction of the printing press to Iraq by the Ottomans and details both the periods where Iraq’s press was truly free and fostered the emergence of a civil society and democratic reforms and those where the Iraqi media was most restricted and did little else than praise the regime at hand. Following on, this paper reviews the developments since the fall of Saddam Hussein and, despite the extensive interference in Iraq’s media sector from the occupying forces, it concludes by arguing that these papers have been central to the re-emergence of an Iraqi public sphere which has openly debated and discussed the issues surrounding the nation’s shift from despotism to democracy.

The early Australian press and the Middle Eastern 'other'

In recent years, and particularly since the events of September 11 2001 and the subsequent “War on Terror”, much scholarly attention has been paid to the Australian news media’s role in stereotyping, homogenising, victimising and demonising people of Middle Eastern descent or of the Islamic faith. However, contemporary Australian journalists have not so much invented the tropes and stereotypes that they have used to construct this negative image and limited discursive field, as they have invoked a rich tapestry of pre-existing notions about the non-Western world. This paper therefore seeks to investigate the relationship between Edward Said’s notion of Orientalism and the Australian press of the late 19th and early 20th centuries. Beginning with its deplorable coverage of Australia’s Indigenous people and the paranoia surrounding the “Asian Invasion” this paper sheds new light on the coverage of Islam and the Middle East in the early Australian press and the emergence of the “Muslim Menace”. Finally, this chapter concludes by noting that such a racialist history raises a host of questions and challenges for the contemporary Australian news media.

Read all about it : the free press, the public sphere and democracy in Iraq

Despite a wealth of recent research which has detailed the impact that new media outlets and technologies have had on the Middle East’s nascent public sphere and its role in promoting democracy, there has been little investigation into the re-emergence of the free press in Iraq following the toppling of Saddam Hussein in 2003 and the corresponding end to his tight control over the nation’s media sector. This paper begins by reviewing Iraq’s long relationship with the written word and its corresponding public sphere. It traces the introduction of the printing press to Iraq by the Ottomans and details those periods when the Iraqi press was truly free, fostering the emergence of a civil society and democratic reforms (such as under the Young Turks, the early Hashemite era and following the Second World War). It also examines those periods when the Iraqi media was most restricted and did little else than praise the regime at hand (such as under Ottoman rule and most recently under the Ba†th regime, especially under Saddam Hussein). Following on, this article reviews the developments since the fall of Saddam Hussein and, despite the extensive interference in Iraq’s media sector from governmental entities both outside and inside Iraq, it concludes by arguing that these papers have been central to the re-emergence of an Iraqi public sphere which has openly debated and discussed the issues pertinent to post-Saddam Iraq.

Transcripts, interviews, press clippings for 'Generations: grandmothers, mothers and daughters'

79 manila files in 4 archive boxes (1 file per interviewee). Comprises handwritten notes and typed transcripts of interviews with daughters who provide information about their mothers and grandmothers concerning their daily lives and objects of value to them that have been passed down through the generations. Interviews were conducted between 1983-01-02 to 1987-03-03.

Also includes some photocopies of press articles (concerning Pat Giles), a photocopy of a family heirloom (a turquoise metal player holder), a newspaper clipping (containing information about one of the interviewees), and hand drawn family trees based on the interviews.

No difference in 1RM strength and muscle activation during the barbell chest press on a stable and unstable surface

Exercise or Swiss balls are increasingly being used with conventional resistance exercises. There is little evidence supporting the efficacy of this approach compared to traditional resistance training on a stable surface. Previous studies have shown that force output may be reduced with no change in muscle electromyography (EMG) activity while others have shown increased muscle EMG activity when performing resistance exercises on an unstable surface. This study compared 1RM strength, and upper body and trunk muscle EMG activity during the barbell chest press exercise on a stable (flat bench) and unstable surface (exercise ball). After familiarization, 13 subjects underwent testing for 1RM strength for the barbell chest press on both a stable bench and an exercise ball, each separated by at least 7 days. Surface EMG was recorded for 5 upper body muscles and one trunk muscle from which average root mean square of the muscle activity was calculated for the whole 1RM lift and the concentric and eccentric phases. Elbow angle during each lift was recorded to examine any range-of-motion differences between the two surfaces. The results show that there was no difference in 1RM strength or muscle EMG activity for the stable and unstable surfaces. In addition, there was no difference in elbow range-of-motion between the two surfaces. Taken together, these results indicate that there is no reduction in 1RM strength or any differences in muscle EMG activity for the barbell chest press exercise on an unstable exercise ball when compared to a stable flat surface. Moreover, these results do not support the notion that resistance exercises performed on an exercise ball are more efficacious than traditional stable exercises.