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Dendrochronological evidence for long-distance timber trading in the Roman Empire

Mauro Bernabei, Jarno Bontadi, Rossella Rea, Ulf Büntgen, Willy Tegel, Andrea Zerboni
2019 PLoS ONE  
It also highlights an advanced network of trade, and emphasises the enormous value of oak wood in Roman times.  ...  Here, we present dendrochronological results from the archaeological excavation of an expensively decorated portico in the centre of Rome.  ...  Four of twenty samples had more than 250 rings ( Table 2 ).  ... 
doi:10.1371/journal.pone.0224077 pmid:31800578 pmcid:PMC6892532 fatcat:egp3kyzsrjhbfnzpzzuz7njliu

Increasing the Accuracy in Determining the Basis Foundation Compressibility

Nataliia Kostochka, Iryna Miroshnychenko, Oleksandr Nalyvayko
2018 International Journal of Engineering & Technology  
eliminate disadvantages of the compression device that is absence of the soil sample lateral expansion and friction with ring walls decreasing the soil sample lateral expansion and reduces real soil compressibility  ...  Such index represents the relative change in the soil sample porosity coefficient during the compression tests. There is increase in prediction accuracy of the building soil foundations settlements.  ...  the sample behind the walls of the ring, and therefore the state of the soil in the ring is close to the actual state of the foundation base.  ... 
doi:10.14419/ijet.v7i3.2.14404 fatcat:hgfhjlei3vfzrkbr5m4f3wucfa

Page 281 of American Society of Civil Engineers. Collected Journals Vol. 122, Issue GT4 [page]

1996 American Society of Civil Engineers. Collected Journals  
Several analytical solutions have been previously developed to predict the settlement of ring foundations.  ...  Ismael’ AssTRACT: The behavior of ring foundations on very dense cemented sands was examined by plate loading tests at a flat site located in Kiefan, Kuwait.  ... 

Page 783 of Civil Engineering Vol. 10, Issue 12 [page]

1940 Civil Engineering  
Practical Shear Tests for Foundation Design Samples Extracted, Sealed, and Tested in Original Ring Container by Simple Process Gwe Bearing Values Consistent with Field Loading Checks By Trent R.  ...  The sampling tools shown have one feature that is not common, although a few such devices have been used elsewhere for several years—a series of brass rings 1 in. long by 2'/: in. in diameter, nested in  ... 

Controlled-temperature diffraction experiments on samples in glass capillaries

J. Noreland, M. Fransen, R. Glazer, J. Van Mechelen
2006 Acta Crystallographica Section A Foundations of Crystallography  
The ring transforms a tensile stress into the compressive one, applied to the both ends of the sample in the plane of the ring.  ...  Axial distribution of stress in the ring and a solid junction secure the sample of a premature destruction.  ... 
doi:10.1107/s0108767306094785 fatcat:htqbog2jdnanjdn5fkxvwdraxi

Indestructive technique for elastic uniaxial stress of monocrystals

N. Minina, N. Brandt, A. Savin, I. Berman
2006 Acta Crystallographica Section A Foundations of Crystallography  
The ring transforms a tensile stress into the compressive one, applied to the both ends of the sample in the plane of the ring.  ...  Axial distribution of stress in the ring and a solid junction secure the sample of a premature destruction.  ... 
doi:10.1107/s0108767306094797 fatcat:obki5mzcp5dkpc4kdmn26tgml4

The "Amsterdam Castle": A Case Study of Wiggle Matching and the Proper Calibration Curve

J. van der Plicht, E. Jansma, H. Kars
1995 Radiocarbon: An International Journal of Cosmogenic Isotope Research  
Our two dating methods can only be made consistent using the recommended calibration curve (1986) instead of the revised one (1993).  ...  We have performed a high-precision14C wiggle-matching study on two oak beams from the "Castle of Amsterdam". These beams are also dated by dendrochronology.  ...  INTRODUCTION In the spring of 1994, archaeologists discovered a medieval brick foundation in the center of Amsterdam.  ... 
doi:10.1017/s0033822200015058 fatcat:lo2ddow2x5ginpbtmpzvpzdv54

Morphology Controlled Lifetime and Selectivity in Zeolite Catalysis

Shewangizaw Teketel, Lars Lundegaard, Wegard Skistad, Unni Olsbye, Karl Petter Lillerud, Pablo Beato, Stian Svelle
2014 Acta Crystallographica Section A: Foundations and Advances  
Electron imaging and diffraction furthermore revealed that the sheets of ZSM-57 are five-fold twinned with the 10-ring channel system perpendicular to the sheet.  ...  The 8-ring channel system would form a closed pentagon shape in defect free crystals.  ...  Electron imaging and diffraction furthermore revealed that the sheets of ZSM-57 are five-fold twinned with the 10-ring channel system perpendicular to the sheet.  ... 
doi:10.1107/s2053273314092626 fatcat:xir4a3pfjrfwfl7q7duzbretnq

Factors that influence the speed of bacterial wood degradation

René K.W.M. Klaassen, Berdien S. van Overeem
2012 Journal of Cultural Heritage  
In order to learn more about the factors that influence the process of decay, approx. 2000 wood samples taken from Amsterdam piles heads were analysed on type and degree of decay and for 59 extracted piles  ...  Bacterial wood decay is a serious threat to the many wooden foundation piles in the Netherlands.  ...  Palace on the Amsterdam Dam square; Marloes Remie (SHR) for doing the majority of the sample analyses; Ewald Pfeiffer (SHR) for doing the sample preparation of the extracted and Royal palace pile samples  ... 
doi:10.1016/j.culher.2012.02.016 fatcat:7fakag6jnnfclctvdz4snnknmu

MicroMAX – new possibilities for serial crystallography

Thomas Ursby, Mirko Milas, Uwe Mueller
2019 Acta Crystallographica Section A: Foundations and Advances  
The beamline will also include instrumentation for oscillation data collection of single crystals with automatic sample exchange.  ...  The MAX IV Laboratory 3 GeV storage ring is the first multi-bend achromat ring in operation with already one macromolecular crystallography beamline, BioMAX, in operation.  ...  The beamline will also include instrumentation for oscillation data collection of single crystals with automatic sample exchange.  ... 
doi:10.1107/s2053273319095299 fatcat:qe2i4amwtnavjnqbkrjfcwyepq

Dendrochronological and radiocarbon analysis of the beam foundation of the medieval stone wall of Székesfehérvár

Emil Horváth, Frigyes Szücsi, Zoltán Kern, András Morgós
2018 Acta Archaeologica  
In this paper the authors publish the results of the dendrochronological and radiocarbon investigation of the beam foundation excavated in the backyard of 20 Jókai Street under the medieval western town  ...  wall of Székesfehérvár.  ...  ACKNOWLEDGEMENTS Thanks for the support of the "Lendület" program of the Hungarian Academy of Sciences (LP2012-27). This is contribution No.56 of 2ka Palaeoclimatology Research Group. IRODALOM  ... 
doi:10.1556/072.2018.69.1.7 fatcat:mxmmam7c6nf33mpbclwl55brgy

Radiocarbon-based approach capable of subannual precision resolves the origins of the site of Por-Bajin

Margot Kuitems, Andrei Panin, Andrea Scifo, Irina Arzhantseva, Yury Kononov, Petra Doeve, Andreas Neocleous, Michael Dee
2020 Proceedings of the National Academy of Sciences of the United States of America  
Our analysis shows that the construction of Por-Bajin started in the summer of 777 CE, a foundation date that resolves decades of debate and allows the origin and purpose of the building to be established  ...  We locate the distinctive radiocarbon signal of the year 775 common era (CE) in wood from the base of the Uyghur monument of Por-Bajin in Russia.  ...  Fig. 2 . 2 A microscope image of the outermost tree rings from sample PB-2. Ring 45 is the last growth ring of the tree.  ... 
doi:10.1073/pnas.1921301117 pmid:32513700 fatcat:76nofxycgbdvjpc6b6mbaw7jbe

A STUDY OF DWARF GALAXIES EMBEDDED IN A LARGE-SCALE Hɪ RING IN THE LEO I GROUP

MYO JIN KIM, AEREE CHUNG, JONG CHUL LEE, SUNGSOON LIM, MINJIN KIM, JONGWAN KO, JOON HYEOP LEE, SOUNG-CHUL YANG, HYE-RAN LEE
2015 Publications of The Korean Astronomical Society  
We discuss the origin of the gas ring based on the stellar age and metal abundance of dwarf galaxies contained within it.  ...  In this work, we present the photometric properties of the dwarfs inside the ring using the CFHT MegaCam u * , g , r and i -band data.  ...  ACKNOWLEDGMENTS This work has been supported by the Center for Galaxy Evolution Research (the SRC program of the National Research Foundation of Korea) and Science Fellowship of POSCO TJ Park Foundation  ... 
doi:10.5303/pkas.2015.30.2.517 fatcat:c3r3fmc5mrg53cyndwr23v3iga

Page 57 of Civil Engineering Vol. 31, Issue 8 [page]

1961 Civil Engineering  
.- high ring samples were weighed on gram scales reading directly to 0.1 gram.  ...  The upper ring was purposely left unfilled so that no pressure would be applied on the surface of the sand that might cause compaction in the test sample.  ... 

Page 66 of American Society of Civil Engineers. Proceedings of the American Society of Civil Engineers Vol. 87, Issue SM4 [page]

1961 American Society of Civil Engineers. Proceedings of the American Society of Civil Engineers  
The rings were lubricated with silicon greaseto reduce side friction, and filter papers were placed on top and bottom of the sample to prevent the clay from being forced intothe porous stone.  ...  Torblaa.11 The experiments on the first three clays shown in the table were conducted while the writer was at Imperial College, using samples of 3 in. diameter and 3/4 in. thick in a brass ring.  ... 
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