نتایج جستجو برای: historical iron

تعداد نتایج: 250201  

2012
Alessia Pepe Antonella Meloni Vincenzo Caruso Paolo Cianciulli Elisabetta Chiodi Gennaro Restaino Vincenzo Positano Petra Keilberg Massimo Lombardi Maria Rita Gamberini

Background The relationship between diabetes mellitus (DM) and cardiac complications has never been systematically studied in thalassemia major (TM). The aim of this crosssectional study was to evaluate in a large historical cohort of TM in the cardiovascular magnetic resonance (CMR) era if DM was associated with an higher prevalence and risk of heart complications, also regardless to the prese...

Journal: :Coordination chemistry reviews 2010
Stephen Ragsdale

The occurrence of a wide variety of metal-carbon bonds in living organisms, ranging from bacteria to humans, is only recently recognized. Of course, the historical examples are the B12 coenzymes containing cobalt-carbon bonds, but now such bonds are also known for nickel, iron, copper, and other transition metal ions. There is no other comparable book; MILS-6, written by 17 experts, summarizes ...

2017
D. E. Watkinson N. J. Emmerson

Controlling the corrosion of historical and archaeological ferrous metal objects presents a significant challenge to conservators. Chloride is a major corrosion accelerator in coastal areas for historic ferrous metal structures and for the many chloride-containing archaeological objects within museums. Corrosion reactions involve the formation of akaganéite (βFeOOH) which incorporates chloride ...

2003
Raimund Karl

Analysing “Celtic” chariots by using Iron Age archaeological material and Early Medieval Irish texts might seem to be more than just one step too far in breaking down boundaries. Considering the huge chronological and geographical gaps between the sources, the objections raised against the concept of “Celticity” by Celtosceptics, and the antinativist school of thought in Irish literature, such ...

2015
Myriam C. Traub Jacco van Ossenbruggen Lynda Hardman

Humanities scholars increasingly rely on digital archives for their research instead of time-consuming visits to physical archives. This shift in research method has the hidden cost of working with digitally processed historical documents: how much trust can a scholar place in noisy representations of source texts? In a series of interviews with historians about their use of digital archives, w...

2011
Yiwei Fang Iftekhar Hasan Haizhi Wang

This paper examines the effects of strategic alliances on non-financial firms’ bank loan financing. We construct several measures to capture firms’ alliance activities using the frequency of alliance activities, the prominence of the alliance partner and the relative networking position in the overall alliance network. We find that firms with active alliance involvement experience a lower cost ...

2011
Elisa H. Barney Smith Jérôme Darbon Laurence Likforman-Sulem

This paper proposes a novel method for document enhancement. The method is based on the combination of two state-of-the-art filters through the construction of a mask. The mask is applied to a TV (Total Variation) regularized image where background noise has been reduced. The masked image is then filtered by NLmeans (Non Local Means) which reduces the noise in the text areas located by the mask...

2014
Taylor Berg-Kirkpatrick Dan Klein

We present richer typesetting models that extend the unsupervised historical document recognition system of BergKirkpatrick et al. (2013). The first model breaks the independence assumption between vertical offsets of neighboring glyphs and, in experiments, substantially decreases transcription error rates. The second model simultaneously learns multiple font styles and, as a result, is able to...

Journal: :IJHAC 2009
Yuzuru Isoda Akihiro Tsukamoto Yoshihiro Kosaka Takuya Okumura Masakazu Sawai Keiji Yano Susumu Nakata Satoshi Tanaka

This paper explores a method for creating large-scale urban 3D models using Historical GIS data. The method is capable of automatically generating realistic VR models based on GIS data at a low cost. 3D models of houses are created from polygon data, fences from line data, and pedestrians and trees from point data. The method is applied to the Virtual Kyoto Project in which the landscape of the...

Journal: :CoRR 2015
Chao-Lin Liu Guantao Jin Hongsu Wang Qingfeng Liu Wen-Huei Cheng Wei-Yun Chiu Richard Tzong-Han Tsai Yu-Chun Wang

We analyzed historical and literary documents in Chinese to gain insights into research issues, and overview our studies which utilized four different sources of text materials in this paper. We investigated the history of concepts and transliterated words in China with the Database for the Study of Modern China Thought and Literature, which contains historical documents about China between 183...

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