Results 1 to 10 of about 938 (126)

Local Quadrupole Ellipticity as Predictor of Anion-Affinity in Nanographenes. [PDF]

J Comput Chem
Anion affinity in nanographenes arises from anion–π interactions in electron‐deficient regions and CH‐‐‐anion hydrogen bonds in electron‐rich domains. Quadrupole moments help describe these interactions but have limitations in polycyclic systems. A regression model based on local quadrupole ellipticity predicts binding energies, highlighting local ...
Charapale O, Posada-Pérez S, Poater A, Solà M.   +3 more
europepmc   +2 more sources

Framework for X-ray mirror surface shape fitting. [PDF]

J Synchrotron Radiat
The closed‐form expressions for elliptic cylinders, hyperbolic cylinders, ellipsoids, hyperboloids, and diaboloids used for X‐ray mirror surface shapes are summarized. Additionally, a four‐layer framework to fit the measured surface shape data in slope or height for convenient X‐ray mirror surface characterization is proposed.For accurate ...
Huang L, Xu R, Wang T, Yamada J, Dvorak J, Austin C, Eeckhout AV, Roman JN, Goldberg K, Idir M.   +9 more
europepmc   +2 more sources

A neutron microscope using a nested Wolter-I condenser and a bank of diffractive-refractive achromatic objectives. [PDF]

J Appl Crystallogr
A neutron microscope is presented comprising a Wolter‐I nested mirror optic as condenser and a 2D array of neutron achromats as objective.We present a nested Wolter‐I mirror design for a neutron condenser, which is based on established X‐ray telescope technology.
Poulsen HF, Andersen CL, Ravinet N, Vila-Comamala J, Veeraraj MRD, Knudsen EB, Willendrup PK, Massahi S, Christensen FE, Ferreira DDM, Strobl M, David C, Theil Kuhn L.   +12 more
europepmc   +2 more sources

Biodegradable Adhesive Systems for Bio-Integrated Applications. [PDF]

Adv Sci (Weinh)
Biodegradable adhesives provide temporary yet reliable adhesion while degrading into safe, non‐toxic by‐products under physiological or environmental conditions. This review summarizes recent developments in physical and chemical adhesion mechanisms—including hydrogen bonding, catechol chemistry, amine‐carboxyl coupling, and emerging diazirine and urea
Han WB, Han S, Shewale PS, Cho H, Kim LH, Naganaboina VR, Hwang SW.   +6 more
europepmc   +2 more sources

Dynamic Generation of Spatially Variable Vector Beams Using Cascaded Moiré Metasurfaces

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
A three‐layer cascaded moiré metasurface dynamically generates vector beams with tunable polarization order and controllable lateral focal positions. Relative rotation of the first two layers adjusts the conjugate OAM components that form the vector beam, whereas the third layer steers its focus across the transverse plane, preserving the dominant OAM ...
Siyu Guo, Zhongzhu Liang, Zhe Wu, Xintong Wei, Shijia Zhu, Junying Liu, Siyu Liu, Qiaohan Liu, Xiaoyan Shi, Fuming Yang, Haiyang Xu   +10 more
wiley   +1 more source

Global Characterization of the Compressional Components of Magnetic Wave Activity in Mercury's Foreshock Region

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Mercury's weak intrinsic magnetic field forms a small magnetosphere and thus a bow shock that decelerates the supermagnetosonic solar wind and reflects particles upstream, forming a foreshock in the quasi‐parallel region. This region is populated by backstreaming ions and electrons and associated wave activity.
Kristin Pump, Daniel Heyner, Xochitl Blanco‐Cano, Primož Kajdič, Diana Rojas‐Castillo, Tomas Karlsson, Ferdinand Plaschke   +6 more
wiley   +1 more source

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

InfoMat, Volume 8, Issue 7, July 2026.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source

The Genoeconomics of Impulsive Intertemporal Choice: A Critical Review

Journal of the Experimental Analysis of Behavior, Volume 126, Issue 1, July 2026.
Abstract Dr. Warren Bickel tirelessly investigated delay discounting (DD), a behavioral economic index of impulsive decision making, as a determinant of numerous health outcomes. Among the factors that contribute to a person's level of DD, a burgeoning body of research has illuminated its genetic foundations and the extent to which it may be a ...
Wei Q. Deng, Kyla L. Belisario, Amanda Doggett, Mahmoud Elsayed, Alysha Cooper, James MacKillop   +5 more
wiley   +1 more source

The clashing of in situ and pre‐cast technologies—Western trends and local traditions in concrete engineering shaping shell construction in 20th‐century Hungary

Structural Concrete, Volume 27, Issue 3, Page 2947-2968, June 2026.
Abstract After a blossoming pre‐World War II (WWII) period, the concrete construction industry in then‐socialist Hungary existed in a relative isolation from the Western World during the mid‐20th century. In this paper, we focus on the body of work of one of the then newly established state‐owned design offices, IPARTERV, to show how the isolation ...
Orsolya Gáspár, Péter Haba
wiley   +1 more source

A new smooth failure criterion for concrete inspired by Lubliner's condition

Structural Concrete, Volume 27, Issue 3, Page 4147-4163, June 2026.
Abstract A new failure criterion with 10 parameters is proposed, based on Lubliner's idea of joining two Drucker–Prager cones. The novelty lies in the way of introducing deviatoric shape variation: through two Podgórski's functions. This feature allows for improving plane stress cross‐section's compatibility with experimental data.
Inez Kamińska, Aleksander Szwed
wiley   +1 more source