Results 31 to 40 of about 27,715 (278)

Extended and generalized centroid of hyperrings

, 2022
Fen Bilimleri Enstitüsü, Matematik Ana Bilim DalıBu tez dört bölümden oluşmaktadır: Birinci bölümde, hiper halka teorisindeki tezde kullanılan temel tanım ve teoremler örneklerle verilmiştir.
Yılmaz, Damla
core  

Detecting false positives with PLATO using double-aperture photometry and centroid shifts

Astronomy & Astrophysics
Context. PLATO will discover exoplanets and characterize their host stars. Since photometry for most PLATO targets will be extracted on board, an efficient strategy to detect false positives (FPs) – transit-like signals not caused by planets – is needed.
Gutiérrez-Canales F., Samadi R., Birch A., Cabrera J., Damiani C., Guterman P., Paproth C., Pertenais M., Santerne A.   +8 more
doaj   +1 more source

2-(Pyridin-4-yl)-1H-benzimidazole

Acta Crystallographica Section E, 2013
The title compound, C12H9N3, is an unhydrated analogue of the previously reported trihydrate. The molecule is essentially planar, with a 3.62 (11)° angle between the pyridine and benzimidazole planes.
David K. Geiger, Christopher J. Bond
doaj   +1 more source

3-Carboxypyrazino[2,3-f][1,10]phenanthrolin-9-ium-2-carboxylate

Acta Crystallographica Section E, 2010
In the title zwitterionic compound, C16H8N4O4, the dihedral angle between the carboxyl and carboxylate groups is 72.14 (2)°. In the crystal, molecules are linked by strong intermolecular O—H...O− and N+—H..
Xiao-Ning Zhang, Feng Fu, Dong-Sheng Li, Cai-Xia Meng   +3 more
doaj   +1 more source

Estimation of extended targets using the generalized monopulse estimator: Extension to a mixed target model

, 2022
S.2084-2096In many radar applications extended targets appear together with point targets. An important problem in particular for tracking algorithms is to rapidly detect these extended targets and to determine their centroid and shape.
Chaumette, E., Nickel, U., Larzabal, P.
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

4,4-Dimethyl-2-phenyl-4,5-dihydropyrrolo[2,3,4-kl]acridin-1(2H)-one

IUCrData
In the title compound, C22H18N2O, the pendant phenyl ring is twisted by 43.85 (1)° with respect to the acridine moiety, which has almost coplanar atoms apart from the sp3 carbon atoms. The extended structure features aromatic π–π stacking with a centroid-
Izarul Islam, Pijush Kanti Roy, Ennio Zangrando, Pran Gopal Karmaker, Harendra Nath Roy   +4 more
doaj   +1 more source

Methyl 3-oxo-2,3-dihydro-1,2-benzothiazole-2-acetate 1,1-dioxide

Acta Crystallographica Section E, 2008
The title molecule, C10H9NO5S, is composed of two essentially planar units with a dihedral angle of 89.16 (6)° between them. In the crystal structure, there are weak intermolecular C—H...O interactions resulting in dimeric pairs of ...
Rehana Rashid, Masood Parvez, Hamid Latif Siddiqui, Saeed Ahmad, Waseeq Ahmad Siddiqui   +4 more
doaj   +1 more source

The Orlicz centroid inequality for star bodies

, 2012
Lutwak, Yang and Zhang established the Orlicz centroid inequality for convex bodies and conjectured that their inequality can be extended to star bodies.
Guangxian Zhu, Zhu, Guangxian
core   +1 more source

Monopulse estimation of swerling I-II extended targets

, 2022
S.476-480Maximum likelihood estimators for the centroid and the extension of Swerling I-II extended targets are given which are based only on the outputs of the generalized monopulse ratio. The statistical performance of these quantities is characterized
Chaumette, E., Nickel, U.R.O., Larzabal, P.   +2 more
core   +1 more source