Results 51 to 60 of about 102,073 (256)

Two Laplacian energies and the relations between them / Две энергии Лапласа и их соотношение / Dve Laplasove energije i odnosi među njima [PDF]

Vojnotehnički Glasnik, 2020
Introduction/purpose: The Laplacian energy (LE) is the sum of absolute values of the terms μi-2m/n, where μi, i=1,2,…,n, are the eigenvalues of the Laplacian matrix of the graph G with n vertices and m edges. In 2006, another quantity Z was introduced,
Ivan Gutman
doaj   +1 more source

Bounds for the signless Laplacian energy

Linear Algebra and its Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abreu, Nair, Cardoso, Domingos M., Gutman, Ivan, Martins, Enide A., Robbiano, Maria   +4 more
openaire   +4 more sources

Synthesis, Structure, and Reactivity of a Magnesium(0) Complex with a Polarized Mgδ−─Caδ+ Bond

Angewandte Chemie, EarlyView.
Mixing metals: The elusive unsupported two‐center‐two‐electron Mg─Ca bond has been realized by using a combination of β‐diketiminate and amidinate ligands. Due to electronegativity differences (Mg: 1.31, Ca: 1.00) the formal oxidation states are Mg0─CaII.
Sandeep Kumar Thakur, Jens Langer, Nil Roig, A. Ganesh Patro, Marcel A. Schmidt, Mercedes Alonso, Sjoerd Harder   +6 more
wiley   +2 more sources

On the Laplacian-energy-like invariant

Linear Algebra and its Applications, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Das, Kinkar Ch., Gutman, Ivan, Cevik, A. Sinan   +2 more
openaire   +2 more sources

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

Advanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang, Zonghao Zuo, Haoxuan Wang, Bin Liu, Yilidusi Yilihamu, Li Wen   +5 more
wiley   +1 more source

Beyond the local approximation to exchange and correlation: the role of the Laplacian of the density in the energy density of Si

, 2005
We model the exchange-correlation (XC) energy density of the Si crystal and atom as calculated by variational Monte Carlo (VMC) methods with a gradient analysis beyond the local density approximation (LDA).
Antonio C. Cancio, J. P. Perdew, M. Brack, M. Y. Chou, P. S. Svendsen, R. F. W. Bader   +5 more
core   +1 more source

A Hydrodynamic Bioreactor for High‐Yield Production of Extracellular Vesicles from Stem Cell Spheroids with Defined Cargo Profiling

Advanced Science, EarlyView.
This study harnesses hydrodynamic flows to generate, confine and stimulate stem cell spheroids, enabling the large‐scale production of extracellular vesicles (EVs). This innovative method not only streamlines spheroid formation and subsequent EV release in a single, integrated process, but also ensures the generation of EVs with enhanced biological ...
Solène Lenoir, Elliot Thouvenot, Giacomo Gropplero, Léonie Dec, Damarys Loew, Clotilde Théry, Jose E Perez, Claire Wilhelm   +7 more
wiley   +1 more source

Rapid Arbitrary‐Shape Microscopy of Unsectioned Tissues for Precise Intraoperative Tumor Margin Assessment

Advanced Science, EarlyView.
This study presents a novel microscopic imaging system capable of rapid, section‐free scanning of irregular tissue surfaces, delivering high sensitivity for detecting cancer cell clusters during intraoperative tumor margin assessment. Abstract Rapid and accurate intraoperative examination of tumor margins is crucial for precise surgical treatment, yet ...
Zhicheng Shao, Xiangwei Meng, Peifen Fu, Keer Huang, Xibei Chen, Yue Ying, Jun Li, Yuxin Zheng, Xiaolong Li, Hyeon Jeong Lee, Jingyi Feng, Yuexin Lu, Runping Cai, Xiongling Jiang, Qing Chen, Hong Zhang, Xiaoyong Man, Li Lin   +17 more
wiley   +1 more source

Visualizing the large-$Z$ scaling of the kinetic energy density of atoms

, 2016
The scaling of neutral atoms to large $Z$, combining periodicity with a gradual trend to homogeneity, is a fundamental probe of density functional theory, one that has driven recent advances in understanding both the kinetic and exchange-correlation ...
Cancio, Antonio C., Redd, Jeremy J.
core   +1 more source

Sabatier‐Adjusted d‐Band Centers of Scalable Asymmetric Iron Sites toward Dynamic Nonradical Network for Fast Mineralization with Low‐Amount Oxidant

Advanced Science, EarlyView.
Asymmetric iron single‐atom catalysts with Sabatier‐adjusted d‐band centers overcome the inherent limitations of peroxymonosulfate (PMS) activation by establishing a synergistic nonradical pathway network, achieving exceptional pollutant mineralization (≈85%) at only one‐tenth conventional PMS dosage.
Yue Chen, Xunheng Jiang, Zhiyu Pan, Zhenjie Li, Chaohuang Chen, Can Li, Chenghui Luo, Shengkun Zhang, Daohui Lin, Xinhua Xu, Jiang Xu   +10 more
wiley   +1 more source