Results 41 to 50 of about 2,652 (112)

ABOUT 3D PRINTING STL 2.0 FILE FORMAT [PDF]

Fiabilitate şi Durabilitate
In this paperwork is presented, based on comparison between different common 3D printing file formats, like STL, OBJ, AMF and 3MF, some characteristics, some limitation and future perspective of these file formats .In this line is presented the ...
Cătălin IANCU
doaj  

Instability of nonminimally coupled scalar fields in the spacetime of slowly rotating compact objects [PDF]

, 2014
Nonminimally coupled free scalar fields may be unstable in the spacetime of compact objects. Such instability can be triggered by classical seeds or, more simply, by quantum fluctuations giving rise to the so-called {\em vacuum awakening effect}.
Matsas, George E. A., Mendes, Raissa F. P., Vanzella, Daniel A. T.   +2 more
core   +2 more sources

Gravitational couplings of charged leptons in a medium [PDF]

, 2001
We calculate the leading order matter-induced corrections to the gravitational interactions of charged leptons and their antiparticles in a medium that contains electrons but not the other charged leptons, such as normal matter.
E.M. Lifshitz, G. G. Raffelt, H. Matsumoto, H.A. Weldon, H.A. Weldon, H.A. Weldon, Indrajit Mitra, J.F. Donoghue, J.F. Donoghue, J.F. Nieves, J.F. Nieves, J.F. Nieves, J.F. Nieves, José F. Nieves, P. Arnold, P.F. Bedaque, P.S. Gribosky, Palash B. Pal, S.Y. Choi, T.S. Evans, Y. Fujimoto   +20 more
core   +3 more sources

Activation of additively manufactured electrodes using methanol and ethanol solutions

Electroanalysis, Volume 36, Issue 11, November 2024.
Abstract The use of polymer additive manufacturing to produce electrodes is an increasingly popular area of electrochemical research. However, one downside of additively manufactured electrodes is the frequent need to remove polymer from the electrode surface to reveal a triple‐phase boundary in order for improved electrode performance to be realized ...
Rhys J. Williams, Robert D. Crapnell, Tom Brine, Craig E. Banks   +3 more
wiley   +1 more source

Free expansion of fermionic dark solitons in a boson-fermion mixture

, 2005
We use a time-dependent dynamical mean-field-hydrodynamic model to study the formation of fermionic dark solitons in a trapped degenerate fermi gas mixed with a Bose-Einstein condensate in a harmonic as well as a periodic optical-lattice potential.
Abdullaev F K, Adhikari S K, Adhikari S K, Adhikari S K, Adhikari S K, Cataliotti F S, Damski B, Drazin P G, Dziarmaga J, Dziarmaga J, Karpiuk T, Kivshar Y S, Muruganandam P, Parker N G, Sadhan K Adhikari, Vichi L, Zakharov V E, Zakharov V E   +17 more
core   +1 more source

Collisional oscillations of trapped boson-fermion mixtures approaching collapse [PDF]

, 2004
We study the collective modes of a confined gaseous cloud of bosons and fermions with mutual attractive interactions at zero temperature. The cloud consists of a Bose-Einstein condensate and a spin-polarized Fermi gas inside a spherical harmonic trap and
A. Minguzzi, H. Feshbach, M. P. Tosi, P. Capuzzi, P. Capuzzi   +4 more
core   +1 more source

Foreign exchange hedging using regime‐switching models: The case of pound sterling

International Journal of Finance &Economics, Volume 29, Issue 4, Page 4813-4835, October 2024.
Abstract We develop a four‐state regime‐switching model for optimal foreign exchange (FX) hedging using forward contracts. The states correspond to four distinct market conditions, each defined by the direction and magnitude of deviation of the prevailing FX spot rate from its long‐term trends.
Taehyun Lee, Ioannis C. Moutzouris, Nikos C. Papapostolou, Mahmoud Fatouh   +3 more
wiley   +1 more source

Features of phenanthrenes distribution in aquagen organic matter Bazhenov Formation, Western Siberia [PDF]

Нефтегазовая геология: Теория и практика
The features of the phenanthrene distribution in the Bazhenov Formation in the southeast of Western Siberia are considered. It has been shown that with increasing maturity of organic matter, the total content of phenanthrene in bitumens increases, and ...
Sotnich I.S., Kostyreva E.A.
doaj  

Group versus individual professional antenatal breastfeeding education for extending breastfeeding duration and exclusivity [PDF]

, 2015
Although breastfeeding initiation rates have increased substantially in many developed countries over the past several decades, breastfeeding duration and exclusivity remain suboptimal.
Lok, YWK, Tarrant, AM, Wong Cheung, KL
core   +1 more source

Фольклорна стилізація в українській прозі першої половини ХІХ століття як засіб для вираження етнічної ідентичності (Folklore stylization in Ukrainian prose of the first half of the nineteenth century as way of manifestation of ethnic identity) [PDF]

, 2012
Якщо аналізувати українську прозу першої половини ХІХ століття, то можна стверджувати, що їй в умовах романтизму притаманна загалом фольклорна стилізація, або фольклоризм, який і став основним засобом для вираження етнічної ідентичності зображуваних ...
Янковська, Ж. О. (Zh. Yankovska)
core