نتایج جستجو برای: aspherical
تعداد نتایج: 898 فیلتر نتایج به سال:
We prove uniqueness, up to diffeomorphism, of symplectically aspherical fillings certain unit cotangent bundles, including those higher-dimensional tori.
Our first main result states that the spectral norm $$\gamma $$ on \mathrm {Ham}(M, \omega ) , introduced in works of Viterbo, Schwarz and Oh, is continuous with respect to $$C^0$$ topology, when M symplectically aspherical. This statement was previously proven only case closed surfaces. As a corollary, using recent Kislev-Shelukhin, we obtain continuity barcodes aspherical symplectic manifolds...
This paper describes the methods using bonded cup wheels for grinding toroidal and cylindrical SiC mirrors with large curvature radii. Since the angle between the cutting direction of bonded abrasives and feed direction of the cup wheel is about 90 °, it is possible to obtain a surface with very low surface roughness independent of the direction of measurement. Toroidal mirrors, circular and el...
The conventional production of lenses is a rather complicated process. Glass raw material which has been pressed to a rough form has to be processed on both sides in order to obtain a finished precision optical component. There have been recent advances in the optical fabrication techniques such as magnetorheological polishing (MRF), ion beam polishing and single point diamond turning (SPDT), b...
The human mammary gland is a complex and heterogeneous organ, where the interactions between mammary epithelial cells (MEC) and stromal fibroblasts are known to regulate normal biology and tumorigenesis. We aimed to longitudinally evaluate morphology and size of organoids in 3D co-cultures of normal (MCF10A) or pre-malignant (MCF10DCIS.com) MEC and hTERT-immortalized fibroblasts from reduction ...
We present optical photometry and spectra of the peculiar type Ib supernova (SN) 2006jc. Strong He I emission lines indicate the progenitor star exploded inside a dense circumstellar medium (CSM) rich in He. An exceptionally blue continuum persists from our first spectrum obtained 15 days after discovery through our last spectrum ∼1 month later. Based on the presence of isolated Fe II emission ...
Three X-ray data sets of the same D,L-serine crystal were measured at temperatures of 298, 100 and 20 K. These data were then evaluated using invarioms and the Hansen & Coppens aspherical-atom model. Multipole populations for invarioms, which are pseudoatoms that remain approximately invariant in an intermolecular transfer, were theoretically predicted using different density functional theorem...
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