Search results for "RAM"
showing 10 items of 35643 documents
Deguna obstrukcijas klīniskā klasifikācija ar 4-fāzu rinomanometriju
2015
Rinomanometrija joprojām var tikt uzskatīta par standartu objektīvai deguna elpošanas funkcijas mērīšanai. Spiediena un plūsmas attiecības x-y-attēlojumā parāda tipiskas cilpas, kas apstiprina nepieciešamību elpošanu novērtēt pēc 4 fāzēm; tas pamato četru fāzu rinomanometrijas būtību. 3 pamatnostādnes 4PR ir: aizvietot novērojumus ar mērījumiem, jaunu parametru ieviešana, kas ir saistīti ar subjektīvo deguna obstrukcijas sajūtu, un grafiska informācija par traucētu deguna vārsta funkciju. Šeit aprakstītā klīnisko datu meta-analīze ir nepieciešama, lai apstiprinātu, ka 4-fāzu rinomanometrija sniedz vairāk, kā arī svarīgāku klīnisko informāciju, salīdzinot ar tā saukto „klasisko” rinomanometr…
CCDC 1846986: Experimental Crystal Structure Determination
2018
Related Article: Sebastian Lips, Dieter Schollmeyer, Robert Franke, Siegfried R. Waldvogel|2018|Angew.Chem.,Int.Ed.|57|13325|doi:10.1002/anie.201808555
CCDC 1433602: Experimental Crystal Structure Determination
2017
Related Article: H. Purandara, S. Foro, B. Thimme Gowda|2017|Acta Crystallogr.,Sect.E:Cryst.Commun.|73|1683|doi:10.1107/S2056989017014669
CCDC 2144108: Experimental Crystal Structure Determination
2022
Related Article: Natalina Makieieva, Teobald Kupka, Grzegorz Spaleniak, Oimahmad Rahmonov, Agata Marek, Alfred Błażytko, Leszek Stobiński, Nataliya Stadnytska, Danuta Pentak, Aneta Buczek, Małgorzata A. Broda, Piotr Kuś, Joachim Kusz, Maria Książek|2022|Struct.Chem.|33|2133|doi:10.1007/s11224-022-02026-7
CCDC 2027280: Experimental Crystal Structure Determination
2020
Related Article: Christian Schumacher, Hannah Fergen, Rakesh Puttreddy, Khai-Nghi Truong, Torsten Rinesch, Kari Rissanen, Carsten Bolm|2020|Org.Chem.Front.|7|3896|doi:10.1039/D0QO01139H
CCDC 1977987: Experimental Crystal Structure Determination
2020
Related Article: Mouad Filali, El Mestafa El Hadrami, Rosaria Bruno, Giovanni De Munno, Abdeslem Bentama, Miguel Julve, Salah-Eddine Stiriba|2020|J.Mol.Struct.|1217|128420|doi:10.1016/j.molstruc.2020.128420
CCDC 2027296: Experimental Crystal Structure Determination
2020
Related Article: Christian Schumacher, Hannah Fergen, Rakesh Puttreddy, Khai-Nghi Truong, Torsten Rinesch, Kari Rissanen, Carsten Bolm|2020|Org.Chem.Front.|7|3896|doi:10.1039/D0QO01139H
Better numerical approximation by Durrmeyer type operators
2018
The main object of this paper is to construct new Durrmeyer type operators which have better features than the classical one. Some results concerning the rate of convergence and asymptotic formulas of the new operator are given. Finally, the theoretical results are analyzed by numerical examples.
Frame-related Sequences in Chains and Scales of Hilbert Spaces
2022
Frames for Hilbert spaces are interesting for mathematicians but also important for applications in, e.g., signal analysis and physics. In both mathematics and physics, it is natural to consider a full scale of spaces, and not only a single one. In this paper, we study how certain frame-related properties of a certain sequence in one of the spaces, such as completeness or the property of being a (semi-) frame, propagate to the other ones in a scale of Hilbert spaces. We link that to the properties of the respective frame-related operators, such as analysis or synthesis. We start with a detailed survey of the theory of Hilbert chains. Using a canonical isomorphism, the properties of frame se…
Frames and weak frames for unbounded operators
2020
In 2012 G\u{a}vru\c{t}a introduced the notions of $K$-frame and of atomic system for a linear bounded operator $K$ in a Hilbert space $\mathcal{H}$, in order to decompose its range $\mathcal{R}(K)$ with a frame-like expansion. In this article we revisit these concepts for an unbounded and densely defined operator $A:\mathcal{D}(A)\to\mathcal{H}$ in two different ways. In one case we consider a non-Bessel sequence where the coefficient sequence depends continuously on $f\in\mathcal{D}(A)$ with respect to the norm of $\mathcal{H}$. In the other case we consider a Bessel sequence and the coefficient sequence depends continuously on $f\in\mathcal{D}(A)$ with respect to the graph norm of $A$.