Results 81 to 90 of about 26,556 (251)

Size-dependent homogeneous linewidth of Z3 exciton absorption spectra in CuCl microcrystals [PDF]

, 1991
Size-dependent homogeneous linewidth of Z3 exciton absorption spectra in CuCl microcrystals was measured at 2 K by the pump-and-probe spectroscopy. Observation of the hole burning gave us the homogeneous linewidth.
Kawamura Tomohiro, Masumoto Yasuaki, Wamura Tetsuro, 舛本 泰章   +3 more
core   +1 more source

Dynamic Supramolecular Polyurethane Elastomers Enabling Bioinspired Strain‐Adaptive Stiffening to Resolve the Softness–Strength Paradox

Advanced Science, EarlyView.
Segmental‐level molecular engineering of a supramolecular polyurethane elastomer integrates strain‐adaptive chains, soft elastic segments, and dynamic hydrogen bonding motifs. This design reconciles skin‐like softness with muscle‐level strength, offering a sustainable and high‐performance material platform for next‐generation artificial skin and soft ...
Haoming Zou, Zhi‐Xiong Fei, Zhao Yang, Ke‐Ke Yang, Dong‐Xu Yang, Ling‐Ying Shi   +5 more
wiley   +1 more source

Failure time and microcrack nucleation

, 1999
The failure time of samples of heterogeneous materials (wood, fiberglass) is studied as a function of the applied stress. It is shown that in these materials the failure time is predicted with a good accuracy by a model of microcrack nucleation proposed ...
A Garcimartín, A Guarino, Atkinson B. K., Bonn D., Dieter G., Kaninnen F., Lawn B., Mogi K., Pomeau Y., S Ciliberto, Shah S. P., Stead D.   +11 more
core   +2 more sources

Helicalization of Covalent Organic Framework Nanofibers with Amplified Spin Polarizability for Boosting Photocatalytic Hydrogen Evolution

Advanced Science, EarlyView.
A non‐covalent chirality‐induced strategy via chiral solvents is presented to synthesize helical 2D COF nanofibers with high crystallinity, high chirality, and high spin polarization. The helical structure enhances the concentration of photogenerated charges, suppresses exciton recombination, and extends carrier lifetimes, thereby significantly ...
Qi Zhong, Yongtu Tian, Yutao Sang, Changchun Wang, Jia Guo   +4 more
wiley   +1 more source

Purely excitonic lasing in ZnO microcrystals: Temperature-induced transition between exciton-exciton and exciton-electron scattering [PDF]

, 2017
Since the seminal observation of room-temperature laser emission from ZnO thin films and nanowires, numerous attempts have been carried out for detailed understanding of the lasing mechanism in ZnO.
Akifumi Asahara, Haruka Soma, Kanae Fukuoka, Kanako Kodama, Ryosuke Matsuzaki, Takashi Uchino, Tohru Suemoto, Yutaka Adachi   +7 more
core   +2 more sources

Clotrimazole‐loaded PLGA microparticles for local drug delivery to the vagina: Shape does matter

Animal Models and Experimental Medicine, EarlyView.
Clotrimazole‐loaded PLGA microparticles for intravaginal delivery. Abstract Background Intravaginal drug administration is the most promising strategy for treating vaginal infections to protect women's health, such as vulvovaginal candidiasis (VVC). However, conventional vaginal formulations in the clinic face challenges such as drug leakage and low ...
Yanyu Li, Jingting Luo, Shitao Zou, Xin Zhang, Zhen Wang, Ziwen Jiang, Jingjie Wang, Zhaoxia Liu, Zhimin Zhou   +8 more
wiley   +1 more source

Investigation of phonon behavior in Pr2NiMnO6 by micro-Raman spectroscopy

, 2011
The temperature dependence of phonon excitations and the presence of spin phonon coupling in polycrystalline Pr2NiMnO6 samples were studied using micro-Raman spectroscopy and magnetometry.
Bull C L, Goodenough J B, Gupta R, K D Truong, M P Singh, Mansouri S, P Fournier, Prellier W, S Jandl   +8 more
core   +1 more source

Mechanism of magnetic field effect on hydrocarbon systems [PDF]

, 2016
Purpose. The aim is to analyze the problem of preventing the asphalt-resin-paraffin deposits (ARPD) in the oil industry equipment and to justify application of paraffin control methods; to review modern approaches to ARPD problem and possible methods ...
Manhura, A, Manhura, S
core   +2 more sources

Forcing the Side‐on π‐Coordination of a C≡C Triple Bond to Technetium Using the As,CC,As Alkyne Pincer Ligand 1,2‐Bis(2‐(diisopropylarsaneyl)‐4‐(trifluoromethyl)phenyl)Ethyne

Angewandte Chemie International Edition, EarlyView.
Technetium alkyne complexes have eluded isolation for decades with the only indicators for their existence being the isolation of vinylidene carbenes or their follow‐up reaction products despite plentiful of reports for neighboring elements. Stable, crystalline Tc(III) and Tc(V) alkyne complexes (and their Re analogs) have now been prepared and fully ...
Maximilian Roca Jungfer, Moritz Johannes Ernst, Lukas Eberle, Marius Kesselring, Guilhem Claude, Joachim Ballmann   +5 more
wiley   +1 more source

Effect of Binder on Physical Properties of Extruded Activated Carbon and Its Application to Levofloxacin Adsorption

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Bamboo charcoal–based extruded activated carbons were prepared via molding, pre‐oxidation, carbonization, and steam activation, with coal tar, phenolic resin, and their mixtures employed as binders based on practical availability and technical feasibility. This study focused on the regulatory effects of binders on the mechanical properties and
Huitao Jiang, Songlin Zuo
wiley   +1 more source