Results 1 to 10 of about 2,780 (23)

Chiral spiral cyclic twins. II. A two‐parameter family of cyclic twins composed of discrete circle involute spirals

open access: yesActa Crystallographica Section A, Volume 79, Issue 6, Page 570-586, November 2023., 2023
A mathematical toy model of chiral spiral cyclic twins is presented, describing a family of deterministically generated aperiodic point sets. Its individual members depend solely on a chosen pair of integer parameters, a modulus m and a multiplier μ, comprising local features of both periodic and aperiodic crystals.
Wolfgang Hornfeck
wiley   +1 more source

On Characterizations of Weighted Harmonic Bloch Mappings and Its Carleson Measure Criteria

open access: yesJournal of Function Spaces, Volume 2023, Issue 1, 2023., 2023
For α > 0, several characterizations of the α‐Bloch spaces of harmonic mappings are given. We also obtain several similar characterizations for the closed separable subspace. As an application, we give relations between BHα and Carleson’s measure.
Munirah Aljuaid   +2 more
wiley   +1 more source

Pure discrete spectrum and regular model sets on some non‐unimodular substitution tilings

open access: yesActa Crystallographica Section A, Volume 78, Issue 5, Page 437-451, September 2022., 2022
The equivalence between pure discrete spectrum and regular model sets on some non‐unimodular substitution tilings is established. This will help to provide useful information about the cut‐and‐project scheme used in the description of quasiperiodic structures.Substitution tilings with pure discrete spectrum are characterized as regular model sets whose
Jeong-Yup Lee
wiley   +1 more source

Coordination sequences of crystals are of quasi‐polynomial type

open access: yesActa Crystallographica Section A, Volume 77, Issue 2, Page 138-148, March 2021., 2021
It is proved that the coordination sequence of the graph obtained from a crystal is of quasi‐polynomial type, as had been postulated by Grosse‐Kunstleve et al. [Acta Cryst. (1996), A52, 879–889] in their study of coordination sequences of zeolites.The coordination sequence of a graph measures how many vertices the graph has at each distance from a ...
Yusuke Nakamura   +3 more
wiley   +1 more source

Kвантитативно одредување на калпротектин во асцит кај пациенти со спонтан бактериски перитонитис

open access: yesArchives of Public Health, 2020
Спонтаниот бактериски перитонитис (СБП) кај пациентите со црнодробна цироза е новонастаната, спонтана бактериска инфекција на стерилна ас
Fana Lichoska-Josifovikj   +7 more
semanticscholar   +1 more source

On the Study of a Single‐Period Principal‐Agent Model with Taxation

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
This paper investigates a single‐period principal‐agent model with moral hazard. In the model, we implement bonus tax for the agent and analyze the effect of loss aversion by comparing with the results by Dietl et al. (2013). The existence and uniqueness of the optimal contracting problem are proved.
Huan Wang, Wenyi Huang, Petr Hájek
wiley   +1 more source

Проценка на процедуралната болка кај доноÑени новородени деца во неонатално одделение во Скопје

open access: yes, 2015
ОÐiНОВА: ИаÐoо неÐoои иNN‚N€Ð°Ð¶NƒÐ²Ð°N‡Ð¸ N‚вN€Ð´Ð°N‚ деÐoа новоN€Ð¾Ð´ÐµÐ½Ð¸N‚е деN†Ð° не N‡NƒÐ²NN‚вNƒÐ²Ð°Ð°N‚ болÐoа Ð?оN€Ð°Ð´Ð¸ незN€ÐµÐ»Ð¾NN‚а на нивниоN‚ мозоÐo, Ð?N€ÐµÐ·ÐµÐ½N‚иN€Ð°Ð½Ð¸N‚е доÐoа
E. Zisovska
semanticscholar   +1 more source

Study of B¯d,s⁎0→Dd,s+M- Decays with QCD Factorization Approach

open access: yesAdvances in High Energy Physics, Volume 2016, Issue 1, 2016., 2016
Motivated by the b‐physics experiments at running LHC and upcoming SuperKEKB/Belle‐II, the nonleptonic B¯q⁎0→Dq+M- (q = d, s and M = π, K, ρ, K⁎) weak decays are studied within QCD factorization framework. The observables of these decay modes are first predicted.
Qin Chang   +5 more
wiley   +1 more source

A Review on Fatigue Life Prediction Methods for Metals

open access: yesAdvances in Materials Science and Engineering, Volume 2016, Issue 1, 2016., 2016
Metallic materials are extensively used in engineering structures and fatigue failure is one of the most common failure modes of metal structures. Fatigue phenomena occur when a material is subjected to fluctuating stresses and strains, which lead to failure due to damage accumulation. Different methods, including the Palmgren‐Miner linear damage rule‐
E. Santecchia   +7 more
wiley   +1 more source

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