Results 101 to 110 of about 1,215,022 (288)

Generating and zeta functions, structure, spectral and analytic properties of the moments of Minkowski question mark function

, 2008
In this paper we are interested in moments of Minkowski question mark function ?(x). It appears that, to certain extent, the results are analogous to the results obtained for objects associated with Maass wave forms: period functions, L-series ...
Alkauskas, Babenko, Bonanno, Contucci, Denjoy, Denjoy, Denjoy, Denjoy, Finch, Giedrius Alkauskas, Haran, Kontsevich, Lagarias, Newman, Okamoto, Panti, Ryde, Stern, Wirsing   +18 more
core   +2 more sources

Self‐Poled Halide Perovskite Ruddlesden‐Popper Ferroelectric‐Photovoltaic Semiconductor Thin Films and Their Energy Harvesting Properties

Advanced Functional Materials, EarlyView.
Low‐dimensional halide perovskite thin films, (BA)2(MA)n‐1PbnBr3n+1 (n = 1, 2), exhibit both semiconducting and ferroelectric properties, enabling mechanical and light energy harvesting. Using Cr/Cr₂O₃ or PCBM as barrier layers ensures reproducible ferroelectricity.
Raja Sekhar Muddam, Shaoyang Wang, Nirmal Prashanth Maria Joseph Raj, Qingping Wang, Philip Wijesinghe, Julia Payne, Matthew S. Dyer, Chris Bowen, Lethy Krishnan Jagadamma   +8 more
wiley   +1 more source

The Relationship Between the Distinguishing Number and the Distinguishing Index with the Detection Number

پژوهش‌های ریاضی, 2020
Introduction The graph is a mathematical model for a discrete set whose members are interlinked in some way. The members of this collection can be the different parts of the earth and the connections between them are bridges that tie them together (like ...
Saeid Alikhani, Samaneh Soltani
doaj  

Bridged Hamiltonian Cycles in Sub-critical Random Geometric Graphs [PDF]

arXiv, 2021
In this paper, we consider a random geometric graph (RGG)~\(G\) on~\(n\) nodes with adjacency distance~\(r_n\) just below the Hamiltonicity threshold and construct Hamiltonian cycles using additional edges called bridges. The bridges by definition do not belong to~\(G\) and we are interested in estimating the number of bridges and the maximum bridge ...
arxiv  

High‐Entropy Magnetism of Murunskite

Advanced Functional Materials, EarlyView.
The study of murunskite (K2FeCu3S4) reveals that its magnetic and orbital order emerges in a simple I4/mmm crystal structure with complete disorder in the transition metal positions. Mixed‐valence Fe ions randomly occupy 1/4 of the tetrahedral sites, with the remaining 3/4 being filled by non‐magnetic Cu+ ions.
Davor Tolj, Priyanka Reddy, Ivica Živković, Luka Akšamović, Jian Rui Soh, Kamila Komȩdera, Izabela Biało, Naveen Kumar Chogondahalli Muniraju, Trpimir Ivšić, Mario Novak, Oksana Zaharko, Clemens Ritter, Thomas LaGrange, Wojciech Tabiś, Ivo Batistić, László Forró, Henrik M. Rønnow, Denis K. Sunko, Neven Barišić   +18 more
wiley   +1 more source

Generalisation : graphs and colourings [PDF]

, 2020
The interaction between practice and theory in mathematics is a central theme. Many mathematical structures and theories result from the formalisation of a real problem. Graph Theory is rich with such examples.
Zarb, Christina
core  

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Network analysis of body-related complaints in patients with neurotic or personality disorders referred to psychotherapy

Heliyon, 2023
Background: Psychopathology theory and clinical practice require the most complex knowledge about patients’ complaints. In patients seeking for psychotherapy, body-related symptoms often complicate treatment.
Katarzyna Klasa, Jerzy A. Sobański, Edyta Dembińska, Anna Citkowska-Kisielewska, Michał Mielimąka, Krzysztof Rutkowski   +5 more
doaj  

ทฤษฎีกราฟเบื้องต้นและการประยุกต์ [PDF]

, 2015
บทคัดย่อในบทความวิชาการฉบับนี้ได้อภิปรายถึงปัญหาคลาสสิกที่น่าสนใจ 3 ปัญหาในทฤษฎีกราฟได้แก่ปัญหาการจับมือทักทายในงานเลี้ยงปัญหาการเดินข้ามสะพานทั้งเจ็ดแห่งเมืองเคอนิกส์แบร์ก และปัญหาการหาวงแฮมิลตันและรอยเดินออยเลอร์ในกราฟ การหาคำตอบของทั้งสามปัญหาอาศ ...
มะกาเจ, นิฟาตมะห์, อินทรสิทธิ์, อาทิตย์   +1 more
core   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source