Results 91 to 100 of about 91,611 (312)

Density functional study of styrene

四川大学学报. 自然科学版, 2016
The molecule of styrene was investigated with the density functional theory (DFT), and the molecular geometries was optimized by using B3LYP method at different levels of basic sets.
HE Wei-Ping, HUANG Ju, WANG De-Tang, LIU Xiao-Jing   +3 more
doaj  

Influence of the Crystal Texture on Raman Spectroscopy of the AlN Films Prepared by Pulse Laser Deposition

Journal of Spectroscopy, 2013
We investigate the Raman scattering of the AlN films prepared by pulse laser deposition. The Raman spectrum and the X-ray diffraction (XRD) patterns of the AlN films were compared to find out the influence of the crystal texture on the Raman scattering ...
Jingjing Wang, Da Chen, Yan Xu, Qixin Liu, Luyin Zhang   +4 more
doaj   +1 more source

Solvent Co‐Intercalation Enabled Ca Storage in MoS2 for Ca‐Ion Batteries

Advanced Functional Materials, EarlyView.
Regulating electrolyte solvation levels enables otherwise non‐intercalatable Ca2+ ions to reversibly co‐intercalate into molybdenum disulfide (MoS2) as ether‐solvated species. The intercalation reversibility is strongly governed by solvent chain length, as demonstrated using diethylene glycol dimethyl ether (G2) and tetraethylene glycol dimethyl ether (
Yudong Luo, Matthias Golomb, Yupei Han, Pan He, Neubi Xavier, Wanjun Ren, Yi Lu, Matthew Hopper, Henry R. Tinker, Qiong Cai, Yang Xu   +10 more
wiley   +1 more source

Raman optical activity demonstrates poly(L-proline) II helix in the N-terminal region of the ovine prion protein: Implications for function and misfunction

, 2004
The aqueous solution structure of the full-length recombinant ovine prion protein PrP25-233, together with that of the N-terminal truncated version PrP94-233, have been studied using vibrational Raman optical activity (ROA) and ultraviolet circular ...
Rhie, A G O, Nielsen, Kurt, Blanch, EW, Rhie, AGO, Gill, AC, Hope, James, Hecht, L, Gill, Andrew C., Gill, A C, Blanch, E W, Barron, Laurence D., Barron, L D, Nielsen, K, Hope, J, Hecht, Lutz, Barron, LD, Blanch, Ewan W., Rhie, Alexandre G. O., Rhie, Alexandre G O   +18 more
core   +1 more source

Coordination Chemistry of Glycolic Acid and Uranyl

Yuanzineng kexue jishu
Glycolic acid (α-hydroxyacetic acid, HA) is a simple, water-soluble carboxylic acid ligand commonly found in the environment. It can coordinate with metal ions through both its carboxyl and hydroxyl oxygen atoms.
ZENG Deli1, LIU Qian1, YANG Qi1, LI Jiale1, PU Tongkai1, YANG Suliang1, TIAN Guoxin1, 2
doaj   +1 more source

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

Advanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk, Danis I. Badrtdinov, Kenji Watanabe, Takashi Taniguchi, Cyrus E. Dreyer, Malte Rösner, Maciej Koperski   +6 more
wiley   +1 more source

A portable spectrum measurement system based on laser-Raman and fluoresce spectrum for cooking oil analysis

, 2012
A system based on spectrum analysis for cooking oil testing which combining laser-induced-fluorescence and laser-Raman technology is established. Several oil samples are testing by this system.
Tian, Xiao-Xue, Feng, Wei-Wei, Chen, Ling-Xin, Zhang, Wei, Xiong, Hua, Peng, Hai-Long   +5 more
core  

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

Advanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus, Bradlee J. McIntosh, Lili Vajtai, Anna Nyáry, Sándor H. Sipos, Nirmal J. Ghimire, Ferenc Simon, László Forró, Dávid Beke   +8 more
wiley   +1 more source

Pulse-pumping of cascaded Raman fibre amplifiers

, 2010
In this thesis, I investigate cascaded Raman fibre amplifiers (RFAs) pumped with shaped optical pulses delivered from a Yb doped fibre MOPA source. RFAs offer the potential to generate gain at any arbitrary wavelength with an appropriate pump source ...
Farrell, Carl
core  

Raman spectroscopic study of the uranyl carbonate mineral voglite [PDF]

, 2008
Raman spectroscopy complimented with infrared spectroscopy has been used to study the uranyl carbonate mineral voglite. The mineral has the formula Ca2Cu2+\[(UO2)(CO3)3](CO3).6H2O and bands attributed to these vibrating units are readily identified in ...
Cejka, Jiri, Ayoko, Godwin A., Dickfos, Marilla J., Frost, Ray L.   +3 more
core   +1 more source