Results 31 to 40 of about 4,037,864 (349)
Features of Stabilization of Ring Blanks
Механика машин, механизмов и материалов, 2023 Ring blanks are in demand in various branches of mechanical engineering in the production of large-sized bearings, turbine disks, special gears and other critical products.
Vladimir E. Antonyuk +1 more
doaj +1 more source
Journal of Algebra and Its Applications, 2019 In analogy to the elementwise definitions of UU- and UJ-rings, a ring [Formula: see text] is called UNJ if [Formula: see text]. After presenting several characterizations and properties, we consider the UNJ-rings within many well-studied classes of rings.
Kosan, M. Tamer +2 more
openaire +4 more sources
Rings of rings: calixpyrrole cyclotrimers
Arkivoc, 2021 Los calixpirroles son una clase de heteromacrociclos que han sido un tema de considerable interés en las últimas dos décadas debido a su rica química huésped-huésped como receptores de aniones. Se han informado varias estructuras que comprenden más de una unidad de calixpirrol como receptores multitópicos y multivalentes.
Rakia Saidi +4 more
openaire +2 more sources
Assessment of agar gel loaded with micro-emulsion for the cleaning of porous surfaces
CeROArt : Conservation, Exposition, Restauration d'Objets d'Art, 2010 Agar gel loaded with micro-emulsion could be used to extract lipophilic materials from porous surfaces. The physical properties of the gels are good enough for a conservation work. They allow the micro-emulsion to flow on the porous surface and to wet it
Florence Gorel
doaj +1 more source
Relationship Between a Homoderivation and a Semi-Derivation
Journal of New TheoryLet $\wp$ be a ring. It is shown that if an additive mapping $\vartheta$ is a zero-power valued on $\wp$, then $\alpha:\wp\rightarrow\wp$ such that $\alpha=\vartheta+1$ is a bijective mapping of $\wp.$ The main aim of this study is to prove that ...
Selin Türkmen
doaj +1 more source
Renormalized relativistic Hartree-Bogoliubov equations with a zero-range pairing interaction [PDF]
, 2005 A recently introduced scheme for the renormalization of the Hartree-Fock-Bogoliubov equations in the case of zero-range pairing interaction is extended to the relativistic Hartree-Bogoliubov model. A density-dependent strength parameter of the zero-range
Niksic, T., Ring, P., Vretenar, D.
core +4 more sources
Rings, rings, rings: what does CN tell us? [PDF]
Proceedings of the International Astronomical Union, 2017 AbstractCN emission lines are among the brightest, and have been observed in the last 20 years with single dish observations. With modern interferometers, we are now able to spatially resolve CN emission, which often shows ring-like structures. We investigate whether such structures trace the morphology of the disks, or if they have a chemical origin ...
openaire +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware +13 more
wiley +1 more source
Fabrication of large ceramic electrolyte disks [PDF]
, 1972 Process for sintering compressed ceramic powders produces large ceramic disks for use as electrolytes in high-temperature electrolytic cells. Thin, strain-free uniformly dense disks as large as 30 cm squared have been fabricated by slicing ceramic slugs ...
Ring, S. A.
core +1 more source
Overlap of quasiparticle random-phase approximation states for nuclear matrix elements of the neutrino-less double beta decay [PDF]
, 2012 Quasiparticle random-phase approximation (QRPA) is applied to two nuclei, and overlap of the QRPA excited states based on the different nuclei is calculated. The aim is to calculate the overlap of intermediate nuclear states of the double-beta decay.
J. Terasaki, P. Ring, P. Vogel
core +2 more sources