Results 51 to 60 of about 6,088 (199)

Calcium carbide residue modification of natural volcanic ash: Strength enhancement mechanisms and life cycle assessment

Case Studies in Construction Materials
In volcanic regions, volcanic ash cannot be directly used as an engineering material in construction, which necessitates stabilization. This study proposes a method for stabilizing volcanic ash using calcium carbide residue.
Mingmin Zhang, Changming Wang, Hailiang Liu, Di Wu, Baohong Lv   +4 more
doaj   +1 more source

Chemotherapy‐driven expression of WNT ligands in bone marrow stromal cells contributes to chemoresistance in acute lymphoblastic leukaemia

British Journal of Haematology, EarlyView.
Chemotherapy‐induced WNT ligand secretion by bone marrow (BM) stroma drives acute lymphoblastic leukaemia (ALL) chemoresistance. WNT pathway inhibition disrupts this cross‐talk and restores therapeutic response, highlighting WNT inhibitors as a promising strategy to prevent relapse in ALL.
Foteini Kalampalika, Amanda Jiménez‐Pompa, Raúl Sánchez‐Lanzas, Bela Patel, Miguel Ganuza   +4 more
wiley   +1 more source

Volcanic ash melting under conditions relevant to ash turbine interactions [PDF]

Nature Communications, 2016
AbstractThe ingestion of volcanic ash by jet engines is widely recognized as a potentially fatal hazard for aircraft operation. The high temperatures (1,200–2,000 °C) typical of jet engines exacerbate the impact of ash by provoking its melting and sticking to turbine parts.
Wenjia Song, Yan Lavallée, Kai-Uwe Hess, Ulrich Kueppers, Corrado Cimarelli, Donald B. Dingwell   +5 more
openaire   +4 more sources

Untangling nutrient co‐regulation of ombrotrophic peatland development

Boreas, EarlyView.
Multi‐method (FTIR, FT‐NIR and TGA) approaches characterizing the organic peat constituents at Holcroft Moss reveal a record of switches that reflect broadly hydroclimate variability governing the decomposition patterns. There are periods, however, where hydroclimate does not fully explain the variability observed and instead changes appear linked to ...
Richard C. Chiverrell, Daniel N. Schillereff, Fiona E. Russell, Julie Valentine, Jason R. Kirby, David M. Wilkinson, John F. Boyle   +6 more
wiley   +1 more source

Fragility Assessment of Vinyl Greenhouses and Livestock Sheds Subjected to Volcanic Ash Fall Hazards

Journal of Asian Architecture and Building Engineering, 2018
In this study, fragility functions are developed to estimate expected volcanic ash damage to vinyl greenhouses and livestock sheds among common agricultural facilities in South Korea.
Hee Jung Ham, Seung Hun Choi, Wooseok Yun, Sungsu Lee, Ho-Jeong Kim   +4 more
doaj   +1 more source

Annex to: Volcanic Ash Cloud Observation using Ground-based Ka-band Radar and Near-Infrared Lidar Ceilometer during the Eyjafjallajökull eruption

Annals of Geophysics, 2015
Volcanic ash plumes are formed during explosive volcanic eruptions. After advection over several thousands of kilometers, volcanic ash particles are highly fragmented, dispersed and aged with micron- sized sorting.
Frank S. Marzano, Luigi Mereu, Mario Montopoli, Domenico Cimini, Giovanni Martucci   +4 more
doaj   +1 more source

Data assimilation for volcanic ash plumes using a satellite observational operator: a case study on the 2010 Eyjafjallajökull volcanic eruption [PDF]

Atmospheric Chemistry and Physics, 2017
Using data assimilation (DA) to improve model forecast accuracy is a powerful approach that requires available observations. Infrared satellite measurements of volcanic ash mass loadings are often used as input observations for the assimilation scheme ...
G. Fu, F. Prata, H. X. Lin, A. Heemink, A. Segers, S. Lu   +5 more
doaj   +1 more source

Multimethod Approach to the Study of Recent Volcanic Ashes from Tengger Volcanic Complex, Eastern Java, Indonesia

Geosciences, 2017
Volcanic ash is a volcanic product with a wide distribution that can be used as a geological marker. In volcanic regions such as Indonesia, the identification of the sources of volcanic ash and tuff layers from different volcanoes or eruptive events is a
Nono Agus Santoso, Satria Bijaksana, Kazuto Kodama, Djoko Santoso, Darharta Dahrin   +4 more
doaj   +1 more source

Temporal change in rock-magnetic properties of volcanic ashes ejected during a 1-year eruption event: a case study on the Aso Nakadake 2019–2020 eruption

Earth, Planets and Space, 2023
We investigated temporal changes in the rock-magnetic properties of volcanic ash ejected from the Aso Nakadake volcano during a sequence of ash eruptions from 2019 to 2020. For 39 volcanic ash samples, magnetic hysteresis parameters, including saturation
Chisato Anai, Takahiro Ohkura, Shin Yoshikawa, Nobutatsu Mochizuki   +3 more
doaj   +1 more source

Interstitial 11q Deletions and Terminal 11q Duplications Cause a Bleeding Tendency due to Platelet Dysfunction That Is Similar to 11q Deletions Causing Jacobsen Syndrome

European Journal of Haematology, EarlyView.
ABSTRACT Introduction Jacobsen syndrome, resulting from a terminal deletion of chromosome 11 (11q), may lead to an increased bleeding tendency due to low platelet counts or platelet dysfunction. Currently, information on bleeding tendency and platelet function in patients with nonterminal 11q‐aberrations such as larger deletions, interstitial 11q ...
Elise J. Huisman, Virgil A. S. H. Dalm, Marieke Joosten, Frans J. Smiers, Leendert Porcelijn, Arjan Hoogendijk, Hans Janssen, Nicole N. van der van der Wel, Idske C. L. Kremer Hovinga, Masja de Haas, Marjon H. Cnossen   +10 more
wiley   +1 more source