Results 111 to 120 of about 469,729 (320)

On the Importance of Balancing the pKa of the Additive in β‐Ketoenamine COF Synthesis

Chemistry – A European Journal, EarlyView.
β‐ketoenamine COFs are usually synthesized in the presence of acetic acid. Here, we report the surprising role of organobases TEA and DIPEA in achieving TpPa with high Brunauer‐Emmett‐Teller surface areas (>1400 m2/g) and high crystallinity. The similar pKa values of TEA and DIPEA (10.8 and 11.0, resp.) and Tp (10.8) mark the importance of balancing ...
Thijmen A. van Voorthuizen, Monique A. van der Veen, Louis C. P. M. de Smet, Maarten M. J. Smulders   +3 more
wiley   +1 more source

Diagnóstico fractal y euclidiano de células de cuello uterino

Repertorio de Medicina y Cirugía, 2014
Basados en geometría fractal se hizo un diagnóstico objetivo y reproducible de células de cuello uterino, que diferencia las normales de aquellas con lesión de bajo grado (LEIBG) o cancerígenas, identificando en forma cuantitativa las células ASCUS ...
Javier Rodríguez Velásquez, Signed Prieto, Ferando Polo, Catalina Correa, Yolanda Soracipa, Vanessa Blanco, Andrés Camilo Rodríguez   +6 more
doaj   +1 more source

Monitoring Nanostructural Dynamics During the Electrochemical Growth of Metal Hydroxide Thin Films by in‐situ Small‐Angle X‐Ray Scattering

Chemistry–Methods, EarlyView.
We present a custom‐built electrochemical flow cell for in‐house real‐time small‐angle X‐ray scattering (SAXS) experiments to monitor the electrocrystallization of nanoscale Co(OH)2 platelets tracking their growth from 7.8 nm to 15.7 nm thickness. Citrate ligands initially stabilize spherical structures, transitioning to platelet morphologies as the ...
Jonas Schwan, Sabine Rosenfeldt, Anna S. Schenk   +2 more
wiley   +1 more source

Self-similar resistive circuits as fractal-like structures

Revista Brasileira de Ensino de Física
Fractals play a central role in several areas of modern physics and mathematics. In the present work we explore resistive circuits where the individual resistors are arranged in fractal-like patterns.
Claudio Xavier Mendes dos Santos, Carlos Molina Mendes, Marcelo Ventura Freire   +2 more
doaj   +1 more source

Fractals in Physics [PDF]

, 1986
Amnon Aharony
openalex   +1 more source

Recycling Spent Synthesis Liquor for Enhanced Production of ZIF‐67: Characterization and Morphological Insights

ChemNanoMat, EarlyView.
Zeolitic imidazolate framework‐67 (ZIF‐67) is synthesized by recycling spent synthesis liquor that contains unreacted 2‐methylimidazole. This recycling process improves the yield of ZIF‐67 while preserving the dodecahedral rhombic shape of the particles. As the liquor is recycled, both the particle size and surface area increase. This study reports the
Lucas Battiston, Barbara Gerbelli, Fabiano Yokaichiya, Ivan Barros, Kátia Oliveira, Cícero Ávila‐Neto   +5 more
wiley   +1 more source

Computerized texture analysis of atypical immature myeloid precursors in patients with myelodysplastic syndromes: an entity between blasts and promyelocytes

Diagnostic Pathology, 2011
Background Bone marrow (BM) blast count is an essential parameter for classification and prognosis of myelodysplastic syndromes (MDS). However, a high degree of cell atypias in bone marrow hemopoietic cells may be found in this group of clonal disorders,
Lorand-Metze Irene GH, Adam Randall L, Vido Joyce R, Metze Konradin   +3 more
doaj   +1 more source

Scale Invariance, Symmetries, Fractals, and Stochastic Simulations of Atmospheric Phenomena [PDF]

, 1986
S. Lovejoy, Daniel Schertzer
openalex   +1 more source

First‐order Sobolev spaces, self‐similar energies and energy measures on the Sierpiński carpet

Communications on Pure and Applied Mathematics, EarlyView.
Abstract For any p∈(1,∞)$p \in (1,\infty)$, we construct p$p$‐energies and the corresponding p$p$‐energy measures on the Sierpiński carpet. A salient feature of our Sobolev space is the self‐similarity of energy. An important motivation for the construction of self‐similar energy and energy measures is to determine whether or not the Ahlfors regular ...
Mathav Murugan, Ryosuke Shimizu
wiley   +1 more source

Resource‐Efficient Electrodes with Metallized Woven‐Glass‐Grid Current Collectors for Lithium‐Ion Batteries

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The use of metallized glass‐based woven‐grids instead of metal foils as current collectors for LIBs leads to a significant reduction in metal usage by over 90 % and weight savings of more than 80 %, resulting in an 11 % increase in specific energy at the cell level. Abstract A novel class of resource‐efficient, woven‐glass‐grid current collectors (CCs)
Yen‐Ming Li, Mohammadjafar Momeni, Huy Nguyen Dang Duc, Suvi von Bahder, Friedrich Roth, Wolfram Münchgesang, Manfred Danziger, Winfried Voitus, Dominik Nuss, Cornelia Sennewald, Tilmann Leisegang   +10 more
wiley   +1 more source