Results 71 to 80 of about 119,953 (318)

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Chromatic and clique numbers of a class of perfect graphs [PDF]

Transactions on Combinatorics, 2015
Let p be a prime number and n be a positive integer. The graph G p (n) is a graph with vertex set [n]=1,2,ldots,n , in which there is an arc from u to v if and only if uneqv and pnmidu+v . In this paper it is shown that G p (n) is a perfect
Mohammad Reza Fander
doaj  

T-Colorings, Divisibility and the Circular Chromatic Number

Discussiones Mathematicae Graph Theory, 2021
Let T be a T -set, i.e., a finite set of nonnegative integers satisfying 0 ∈ T, and G be a graph. In the paper we study relations between the T -edge spans espT (G) and espd⊙T(G), where d is a positive integer and d⊙T={0≤t≤d(maxT+1):d|t⇒t/d∈T}.d \odot T =
Janczewski Robert, Trzaskowska Anna Maria, Turowski Krzysztof   +2 more
doaj   +1 more source

A Soft Microrobot for Single‐Cell Transport, Spheroid Assembly, and Dual‐Mode Drug Screening

Advanced Materials, EarlyView.
A soft, untethered hydrogel microrobot enables precise single‐cell delivery, self‐assembly into 3D spheroids, and real‐time thermal actuation. Driven by light‐induced convection and embedded with gold nanorods and temperature sensors, the microrobot guides cells, modulates local microenvironments, and supports drug testing.
Philipp Harder, Nergishan İyisan, Yukun Wang, Berna Özkale   +3 more
wiley   +1 more source

Global Dominator Chromatic Number of Certain Graphs [PDF]

Mathematics Interdisciplinary Research
‎For a graph G=(V,E) and a vertex subset $D\subseteq V$‎, ‎a vertex $v\in V$ is called a dominator of D if v is adjacent to every vertex in D‎, ‎and an anti-dominator of D if v is not adjacent to any vertex in D. ‎Given a coloring $C=\{V_{1},V_{2},\ldots,
Hadi Nouri Samani, Saeid Alikhani, Nima Ghanbari   +2 more
doaj   +1 more source

Facile Bottom‐Up Assembly of Photonic Micropatterns via Surface‐Guided Colloidal Crystallization

Advanced Materials, EarlyView.
High‐resolution photonic micropatterns with vivid structural colors are fabricated through bottom‐up assembly, guided by surface‐dependent regioselective heterogeneous nucleation and crystal growth of colloidal particles. Full‐spectrum color tunability is achieved by controlling particle size and interparticle attraction, while in situ color mixing is ...
Yongseok Jung, Sehee Yang, Sanghyuk Park, Shin‐Hyun Kim   +3 more
wiley   +1 more source

Electrically Assisted Thermal Stamping of Tunable Carbon‐Based Nanofilms for Direct Fabrication of Hydrophobic, Energy Harvesting, and Sensing Devices

Advanced Materials, EarlyView.
Schematic illustration of the electrically assisted thermal stamping (EATS) method for direct fabrication of carbon‐based nanofilms and their multifunctional applications. Localized Joule heating triggers simultaneous exfoliation, reduction, and fluoropolymer incorporation under ambient conditions, yielding tunable carbon‐based thin‐film coatings ...
Byungseok Seo, Yong Choi, Gajendra S. Shekhawat, Minjoong Shin, Kunmo Koo, Xiaobing Hu, Jiheon Kim, Wonjoon Choi, Xinqi Chen, Vinayak P. Dravid   +9 more
wiley   +1 more source

The locating-chromatic number for Halin graphs

Communications in Combinatorics and Optimization, 2017
Let $G$ be a connected graph‎. ‎Let $f$ be a proper $k$-coloring of $G$ and $\Pi=\{R_1,R_2,\ldots‎, ‎R_k\}$ be an ordered partition of $V(G)$ into color classes‎. ‎For any vertex $v$ of $G,$ define the {\em color code} $c_\Pi(v)$ of $v$ with respect to $\
I.A‎. ‎Purwasih, ‎E.T‎. ‎Baskoro, H‎. ‎Assiyatun, ‎D‎. ‎Suprijanto, M‎. ‎Ba\v{c}a   +4 more
doaj   +1 more source

The $b$-Chromatic Number and $f$-Chromatic Vertex Number of Regular Graphs

, 2013
The $b$-chromatic number of a graph $G$, denoted by $b(G)$, is the largest positive integer $k$ such that there exists a proper coloring for G with $k$ colors in which every color class contains at least one vertex adjacent to some vertex in each of the other color classes, such a vertex is called a dominant vertex. The $f$-chromatic vertex number of a
El-Sahili, Amine, Kheddouci, Hamamache, Kouider, Mekkia, Mortada, Maidoun   +3 more
openaire   +4 more sources

Macrophages Mediate Mesoscale Brain Mechanical Homeostasis

Advanced Materials, EarlyView.
We investigated the role of infiltrating immune cells in sculpting the developing brain. Using Brillouin microscopy and active microrheology, we found microglia actively maintain tissue viscoelasticity. Moreover, colony stimulating factor one receptor (CSF1R)‐driven stromal remodeling alters brain mechanics in vivo. These findings link immune activity,
Woong Young So, Bailey Johnson, Patricia B. Gordon, Kevin S. Bishop, Hyeyeon Gong, Hannah A Burr, Jack Rory Staunton, Chenchen Handler, Khanh Loan Ly, Raman Sood, Giuliano Scarcelli, Kandice Tanner   +11 more
wiley   +1 more source