Results 71 to 80 of about 69,266 (252)

On Upward Drawings of Trees on a Given Grid

, 2017
Computing a minimum-area planar straight-line drawing of a graph is known to be NP-hard for planar graphs, even when restricted to outerplanar graphs. However, the complexity question is open for trees.
A Gregori, C Bachmaier, D Mondal, D Mondal, K Marriott, KJ Supowit, L Trevisan, M Garey, M Krug, MJ Alam, SN Bhatt, SR Mahaney, T Biedl, W Brunner   +13 more
core   +1 more source

Electric Pulse Regulated MXene Based Nanozymes for Integrative Bioelectricity Immuno‐Cancer Therapy

Advanced Functional Materials, EarlyView.
MXenzyme‐mediated bioelectricity cancer therapy (MXenzyme‐BECT) enhances cancer cell death through irreversible depolarization, ion channel disruption, ROS generation, and immunogenic cell death. Computational simulations reveal the electrical mechanisms by which MXenzyme acts on single cells and support to predict treatment parameters. Next‐generation
Sanghee Lee, Seongchan Kim, Eui‐Sang Yu, Sian Lee, Min Jun Ko, Hyojin Lee, Dong‐Hyun Kim   +6 more
wiley   +1 more source

On the Maximum Crossing Number

, 2017
Research about crossings is typically about minimization. In this paper, we consider \emph{maximizing} the number of crossings over all possible ways to draw a given graph in the plane. Alpert et al. [Electron. J.
E Steinitz, F Shahrokhi, H Harborth, H Nagamochi, H Staudacher, J Håstad, L Lovász, M Alpert, M Chimani, M Goemans, MR Garey, O Verbitsky, OA Çakiroglu, P Berman, P Eades, R Ringeisen, S Bald, S Khot, W Furry   +18 more
core   +1 more source

Bi‐Directional Assembly of Boron Nitride µ‐Platelets by Micro‐Molding for Advanced Thermal Interface Materials

Advanced Functional Materials, EarlyView.
Bi‐directionally assembled BN µ‐platelets in micropatterns formed by a micro‐molding method for thermal interface materials are demonstrated. The BN µ‐platelets are vertically aligned selectively, while compressed regions without patterns accommodate horizontally assembled BN µ‐platelets. Through anisotropic orientation, high thermal conductivities for
Young Gil Kim, In‐Young Jung, Yujin Mun, Joo Hwan Shin, Sang Gil Lee, Gyan Raj Koirala, Taewoo Kang, Jehyung Ok, Hyesu Choi, Jiwon Kim, Youngkwang Shin, Seok Joon Kwon, Tae‐il Kim   +12 more
wiley   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Beyond Outerplanarity

, 2017
We study straight-line drawings of graphs where the vertices are placed in convex position in the plane, i.e., convex drawings. We consider two families of graph classes with nice convex drawings: outer $k$-planar graphs, where each edge is crossed by at
AWM Dress, B Courcelle, C Auer, C Binucci, DR Lick, DR Wood, E Ackerman, E Ackerman, G Ringel, J Fox, J Geneson, J Pach, J Pach, M Cygan, M Yannakakis, MJ Bannister, N Robertson, P Angelini, R Impagliazzo, S-H Hong, SH Hong, T Nakamigawa, V Capoyleas, V Dujmović   +23 more
core   +1 more source

Exploring Electronic States and Ultrafast Electron Dynamics in AlInP Window Layers: The Role of Surface Reconstruction

Advanced Functional Materials, EarlyView.
This study examines the surface characteristics of AlInP (001), crucial for advanced solar cells and photoelectrochemical devices. Using theoretical modeling and experiments, it identifies how phosphorus‐rich and indium‐rich surfaces create mid‐gap states that pin the Fermi level and influence ultrafast electron dynamics.
Mohammad Amin Zare Pour, Sahar Shekarabi, Isaac Azahel Ruiz Alvarado, Jonathan Diederich, Yuyings Gao, Agnieszka Paszuk, Dominik C. Moritz, Wolfram Jaegermann, Dennis Friedrich, Roel van de Krol, Wolf Gero Schmidt, Thomas Hannappel   +11 more
wiley   +1 more source

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

Enhanced Magnetization Switching Efficiency via Orbital‐Current‐Induced Torque in Ti/Ta (Pt)/CoFeB/MgO Structures

Advanced Functional Materials, EarlyView.
The orbital‐current‐induced torque is investigated as an efficient method for controlling magnetization direction. By introducing Ti as an orbital current source in Ti/Ta (or Pt)/CoFeB/MgO structures, the switching current is reduced by ∼25% compared to a conventional spin‐orbit torque structure of Ta/CoFeB/MgO.
So y. Shin, Donghyeon Han, Soogil Lee, Byong‐Guk Park   +3 more
wiley   +1 more source

Upward Planar Morphs

, 2018
We prove that, given two topologically-equivalent upward planar straight-line drawings of an $n$-vertex directed graph $G$, there always exists a morph between them such that all the intermediate drawings of the morph are upward planar and straight-line.
A Garg, C Thomassen, G Battista Di, G Battista Di, G Battista Di, H Tietze, HL Smith, J Hopcroft, P Angelini, P Angelini, P Bertolazzi, P Bertolazzi, P Bertolazzi, RF Cohen, S Alamdari, S Hong, Soroush Alamdari, SS Cairns, T Biedl, T Biedl   +19 more
core   +1 more source