Results 1 to 10 of about 5,848 (253)

Temporal dynamics of charge buildup in cryo-electron microscopy [PDF]

Journal of Structural Biology: X, 2023
It is well known that insulating samples can accumulate electric charges from exposure to an electron beam. How the accumulation of charge affects imaging parameters and sample stability in transmission electron microscopy is poorly understood.
Makoto Tokoro Schreiber, Alan Maigné, Marco Beleggia, Satoshi Shibata, Matthias Wolf   +4 more
doaj   +2 more sources

Study on ice condensation characteristics and deformation laws of two-dimensional orthopermafrost [PDF]

Scientific Reports
With the further development of the permafrost area in the country, the research on geotechnical engineering is becoming more and more in-depth at this stage.
Genglong Zhao, Zhilong Zhang, Jiangang Chen, Xuejun Liu, Bingbing Lei   +4 more
doaj   +2 more sources

Euclid preparation

Astronomy & Astrophysics
We investigated the accuracy and range of validity of the perturbative model for the two-point (2PCF) and three-point (3PCF) correlation functions in real space in view of the forthcoming analysis of the Euclid mission spectroscopic sample.
Guidi M., Veropalumbo A., Pugno A., Moresco M., Sefusatti E., Porciani C., Branchini E., Breton M.-A., Camacho Quevedo B., Crocce M., de la Torre S., Desjacques V., Eggemeier A., Farina A., Kärcher M., Linde D., Marinucci M., Moradinezhad Dizgah A., Moretti C., Pardede K., Pezzotta A., Sarpa E., Amara A., Andreon S., Auricchio N., Baccigalupi C., Bagot D., Baldi M., Bardelli S., Battaglia P., Biviano A., Brescia M., Camera S., Cañas-Herrera G., Capobianco V., Carbone C., Cardone V. F., Carretero J., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Congedo G., Conversi L., Copin Y., Courbin F., Courtois H. M., Da Silva A., Degaudenzi H., De Lucia G., Dole H., Douspis M., Dubath F., Dupac X., Dusini S., Escoffier S., Farina M., Farinelli R., Faustini F., Ferriol S., Finelli F., Fosalba P., Fotopoulou S., Frailis M., Franceschi E., Fumana M., Galeotta S., Gillis B., Giocoli C., Gracia-Carpio J., Grazian A., Grupp F., Guzzo L., Haugan S. V. H., Holmes W., Hormuth F., Hornstrup A., Jahnke K., Jhabvala M., Joachimi B., Keihänen E., Kermiche S., Kiessling A., Kubik B., Kümmel M., Kunz M., Kurki-Suonio H., Le Brun A. M. C., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Maino D., Maiorano E., Mansutti O., Marcin S., Marggraf O., Markovic K., Martinelli M., Martinet N., Marulli F., Massey R., Medinaceli E., Mei S., Melchior M., Mellier Y., Meneghetti M., Merlin E., Meylan G., Mora A., Morin B., Moscardini L., Munari E., Neissner C., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Percival W. J., Pettorino V., Pires S., Polenta G., Poncet M., Popa L. A., Raison F., Rebolo R., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Saglia R., Sakr Z., Sánchez A. G., Sapone D., Sartoris B., Schewtschenko J. A., Schneider P., Schrabback T., Scodeggio M., Secroun A., Seidel G., Seiffert M., Serrano S., Simon P., Sirignano C., Sirri G., Spurio Mancini A., Stanco L., Steinwagner J., Tallada-Crespí P., Tavagnacco D., Taylor A. N., Tereno I., Tessore N., Toft S., Toledo-Moreo R., Torradeflot F., Tsyganov A., Tutusaus I., Valenziano L., Valiviita J., Vassallo T., Verdoes Kleijn G., Wang Y., Weller J., Zamorani G., Zerbi F. M., Zucca E., Allevato V., Ballardini M., Bolzonella M., Bozzo E., Burigana C., Cabanac R., Calabrese M., Cappi A., Di Ferdinando D., Escartin Vigo J. A., Gabarra L., Martín-Fleitas J., Matthew S., Maturi M., Mauri N., Metcalf R. B., Nucita A. A., Pöntinen M., Risso I., Scottez V., Sereno M., Tenti M., Viel M., Wiesmann M., Akrami Y., Andika I. T., Anselmi S., Archidiacono M., Atrio-Barandela F., Balaguera-Antolinez A., Bertacca D., Bethermin M., Blot L., Böhringer H., Borgani S., Brown M. L., Bruton S., Calabro A., Caro F., Carvalho C. S., Castro T., Cogato F., Conseil S., Contarini S., Cooray A. R., Cucciati O., Davini S., De Paolis F., Desprez G., Díaz-Sánchez A., Diaz J. J., Di Domizio S., Diego J. M., Dimauro P., Enia A., Fang Y., Ferrari A. G., Ferreira P. G., Finoguenov A., Franco A., Ganga K., García-Bellido J., Gasparetto T., Gautard V., Gaztanaga E., Giacomini F., Gianotti F., Gozaliasl G., Gutierrez C. M., Hernández-Monteagudo C., Hildebrandt H., Hjorth J., Joudaki S., Kajava J. J. E., Kang Y., Kansal V., Karagiannis D., Kiiveri K., Kirkpatrick C. C., Kruk S., Lattanzi M., Legrand L., Lembo M., Lepori F., Leroy G., Lesci G. F., Lesgourgues J., Leuzzi L., Liaudat T. I., Loureiro A., Macias-Perez J., Maggio G., Magliocchetti M., Mannucci F., Maoli R., Martins C. J. A. P., Maurin L., Miluzio M., Monaco P., Morgante G., Nadathur S., Naidoo K., Navarro-Alsina A., Nesseris S., Pagano L., Passalacqua F., Paterson K., Patrizii L., Pisani A., Potter D., Quai S., Radovich M., Reimberg P., Rocci P.-F., Rodighiero G., Sacquegna S., Sahlén M., Sanders D. B., Schneider A., Sciotti D., Sellentin E., Smith L. C., Sorce J. G., Tanidis K., Tao C., Testera G., Teyssier R., Tosi S., Troja A., Tucci M., Valieri C., Venhola A., Vergani D., Vernizzi F., Verza G., Vielzeuf P., Walton N. A.   +309 more
doaj   +17 more sources

Optical Measurements of Water Lenses in Ice [PDF]

Journal of Glaciology, 1987
AbstractThe dihedral angle of water at a grain boundary in ice is found, by measuring the optical focal length of lenticular water inclusions, to be 33.6 ± 0.7°. The new result leads to only minor revision of published experimental values of specific surface free energies in the ice–water system (Ketcham and Hobbs, 1969).
M.E.R. Walford, D.W. Roberts, I. Hill
openaire   +1 more source

An empirical firn-densification model comprising ice lenses [PDF]

Annals of Glaciology, 2005
AbstractIn the past, several empirical firn-densification models have been developed fitted to measured density–depth profiles from Greenland and Antarctica. These models do not specifically deal with refreezing of meltwater in the firn. Ice lenses are usually indirectly taken into account by choosing a suitable value of the surface snow density.
Reeh, Niels, Fisher, David A., Koerner, Roy M., Clausen, Henrik Brink   +3 more
openaire   +1 more source

ICE-COLA: fast simulations for weak lensing observables [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
Approximate methods to full N-body simulations provide a fast and accurate solution to the development of mock catalogues for the modeling of galaxy clustering observables. In this paper we extend ICE-COLA (Izard et al. 2016), based on an optimized implementation of the approximate COLA method, to produce weak lensing maps and halo catalogues in the ...
Izard, Albert, Fosalba, Pablo, Crocce, Martin   +2 more
openaire   +2 more sources

Freezing colloidal suspensions: periodic ice lenses and compaction [PDF]

Journal of Fluid Mechanics, 2014
AbstractRecent directional solidification experiments with aqueous suspensions of alumina particles (Anderson & Worster, Langmuir, vol. 28 (48), 2012, pp. 16512–16523) motivate a model for freezing colloidal suspensions that builds upon a theoretical framework developed by Rempel et al. (J. Fluid Mech., vol. 498, 2004, pp.
Anderson, Anthony M, Worster, M Grae
openaire   +2 more sources

Numerical modelling of distinct ice lenses in frost heave

IOP Conference Series: Earth and Environmental Science, 2021
Abstract Frost heave happens when three conditions coincide: the temperature is below the normal freezing point of bulk water, the sub-cooled water is connected to a water reservoir, and the mechanical conditions of the soil allows the ice lens to grow. Upon further penetration of the freezing front, the relative permeability of the soil
S.A. Ghoreishian Amiri, G. Grimstad, H. Gao, S. Kjelstrup   +3 more
openaire   +1 more source

Ice Lenses May Cause Many Arctic Landslides

Eos, 2021
When permafrost thaw reaches concentrations of ice underneath the surface, it may trigger local soil instability.
openaire   +1 more source

Formation of ice lenses and frost heave [PDF]

Journal of Geophysical Research: Earth Surface, 2007
I examine the morphology of ice growth in porous media. Intermolecular forces cause premelted fluid to migrate and supply segregated ice growth (e.g., lenses) and frost heave. I account for the net effect of these microscopic interactions in a homogenized model formulated in terms of fundamental physical properties and characteristics of the porous ...
openaire   +1 more source