Results 121 to 130 of about 439,865 (314)

FS-ALG: THUẬT TOÁN KHAI THÁC DÃY SỰ KIỆN PHỔ BIẾN

Tạp chí Khoa học Đại học Cần Thơ, 2015
Khai thác tập phổ biến có yếu tố thời gian từ cơ sở dữ liệu giao dịch đòi hỏi nhiều thời gian thực thi. Vì vậy, bài báo tiến hành xây dựng cấu trúc cây FS-Tree (Frequent Sequence Tree) để lưu trữ các dãy sự kiện tổ hợp với thời điểm xuất hiện tương ứng ...
Nguyễn Thị Thu Hiền, Văn Thế Thành, Quản Thành Thơ   +2 more
doaj  

Resolution among major placental mammal interordinal relationships with genome data imply that speciation influenced their earliest radiations

, 2010
Background: A number of the deeper divergences in the placental mammal tree are still inconclusively resolved despite extensive phylogenomic analyses.
Janke, Axel, Hallström, Björn M.
core   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Molecular classification of Coptolabrus jankowskii (Coleoptera: Carabidae) in regions of Korea

Journal of Asia-Pacific Biodiversity, 2014
This study was carried out to ascertain regional gene differences in the carabid beetle, Coptolabrus jankowskii, in Korea. There are eight subspecies of this species in Korea and it is very difficult to identify them due to morphological similarity.
Eun Young Choi, Jinyoung Park, Deok Jin Jang, Kun Hyung Kim, Jong Kyun Park   +4 more
doaj   +1 more source

Human Gut Bacteria and Lipidic Nanoparticles: Particle Composition Predicts Structural Transformation and Bacterial Biocompatibility

Advanced Functional Materials, EarlyView.
Lipidic nanoparticles (LNPs) were incubated with 21 gut bacteria frequently associated with the human microbiome. SAXS revealed that ∼75% of tested species induced structural transformations in monoolein LNPs, whereas phytantriol and phospholipid formulations remained unaffected.
Jonathan Caukwell, Emily L. Gulliver, Livia Salvati Manni, Frithjof Herb, Caitlin Welsh, Samuel C. Forster, Andrew J. Clulow, Wye‐Khay Fong   +7 more
wiley   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Parametric and non-parametric masking of randomness in sequence alignments can be improved and leads to better resolved trees

Frontiers in Zoology, 2010
Background Methods of alignment masking, which refers to the technique of excluding alignment blocks prior to tree reconstructions, have been successful in improving the signal-to-noise ratio in sequence alignments.
von Reumont Björn M, Thormann Birthe, Dambach Johannes, Meusemann Karen, Kück Patrick, Wägele Johann W, Misof Bernhard   +6 more
doaj   +1 more source

508-sequence 16S rRNA tree

, 2015
Bayesian 508-sequence phylogenetic 16S rRNA tree derived from merging non-redundant sequences available from the Silva database with non-redundant 454 ...
T. Martin Embley (124611), Daniel J. Macqueen (39411), Alice C. McHardy (11363), Christina Kratsch (429436), James I. Prosser (194381), Tom A. Williams (124587), Cécile Gubry-Rangin (3322182)   +6 more
core   +1 more source

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

Advanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu, Haksoon Jung, Yongwoo Lee, Hoichang Jeong, Yanfeng Zhao, Heesoo Yang, Minho Park, Hyeonjin Lee, Seunghun Baek, Minju Song, Junghwan Kim, Youngmin Jo, Hyunjin Park, Munhyeon Kim, Jae‐Joon Kim, Kyuho Jason Lee, Byungjo Kim, Jimin Kwon   +17 more
wiley   +1 more source

Number of Spanning Trees in the Sequence of Some Graphs

Complexity, 2019
In mathematics, one always tries to get new structures from given ones. This also applies to the realm of graphs, where one can generate many new graphs from a given set of graphs. In this work, using knowledge of difference equations, we drive the explicit formulas for the number of spanning trees in the sequence of some graphs generated by a triangle
Jia-Bao Liu, Salama Nagy Daoud
openaire   +3 more sources