Results 71 to 80 of about 112,798 (305)

Insight into the Internal Structure of Biogenic, Synthetic and Geological Apatite by Electron Microscopy and X‐Ray Scattering

Advanced Functional Materials, EarlyView.
Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka, Oleg Prymak, Kateryna Loza, Matthias Epple   +3 more
wiley   +1 more source

Torsional Interaction Studies on a Power System Compensated by SSSC and Fixed Capacitor [PDF]

, 2003
In this paper, a static synchronous series compensator (SSSC), along with a fixed capacitor, is used to avoid torsional mode instability in a series compensated transmission system.
Ghosh, Arindam, Joshi, Avinash, Pillai, G   +2 more
core   +2 more sources

Molecular Cross‐Linking of MXenes: Tunable Interfaces and Chemiresistive Sensing

Advanced Functional Materials, EarlyView.
In this study, Ti3C2Tx MXenes are initially functionalized using oleylamine ligands to form stable dispersions in an organic solvent. Subsequently ligand exchange with α,ω‐diaminoalkanes enables cross‐linking, along with precise tuning of interfaces. This structural control translates into tunable charge transport and responsive VOC sensing, showing ...
Yudhajit Bhattacharjee, Lukas Mielke, Mahmoud Al‐Hussein, Shivam Singh, Karen Schaefer, Borja Rodriguez‐Barea, Qiong Li, Anik Kumar Ghosh, Artur Erbe, Carmen Herrmann, Yana Vaynzof, Andreas Fery, Hendrik Schlicke   +12 more
wiley   +1 more source

Study on Dynamic Characteristics of Thrust Bearing of Icebreaker

Journal of Harbin University of Science and Technology, 2019
By means of finite element analysis method, we simulate the process of the icebreaker and ice collision to obtain the ice load The transient point supporting fanshaped thrust bearing dynamic characteristics were calculated in this transient process,and
LI Yong-hai, ZHAO Hong-bo, SUN Xiang-zhi, GUO Xiao-dong, WANG Lei   +4 more
doaj   +1 more source

Non-modal approach to linear theory: marginal stability and the dissipation of turbulent fluctuations

, 2009
The non-modal approach for a linearized system differs from a normal mode analysis by following the temporal evolution of some perturbed equilibria, and therefore includes transient effects.
Borgogno, David Burgess, Enrico Camporeale, Galtier, Howes, Marsch, Matthaeus, Press, Salem, Thierry Passot, Trefethen   +10 more
core   +3 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

A Transient Damping Improvement Strategy for Enhancing Grid-Connected Active Power Response Performance of VSG

Energies
The given power and grid frequency disturbances can cause transient oscillations and steady-state deviations in the output power of a virtual synchronous generator (VSG), which can be effectively addressed by adding transient damping.
Yan Xia, Yang Chen, Renzhao Chen, Ke Li, Huizhu Li, Jinhui Shi, Yiqiang Yang   +6 more
doaj   +1 more source

Transient and steady-state velocity of domain walls for a complete range of drive fields [PDF]

Approximate analytic solutions for transient and steady-state 180 deg domain wall motion in bulk magnetic material are obtained from the dynamic torque equations with a Gilbert damping term.
Bartran, D. S., Bourne, H. C., Jr.
core   +1 more source

Growth mechanisms of perturbations in boundary layers over a compliant wall

, 2018
The temporal modal and nonmodal growth of three-dimensional perturbations in the boundary-layer flow over an infinite compliant flat wall is considered.
A. Kornecki, C. Davies, G. H. Golub, L. N. Trefethen, M. Gaster, P. J. Schmid, P. W. Carpenter, P. W. Carpenter   +7 more
core   +1 more source

Ultrafast dynamics of coherent optical phonons and nonequilibrium electrons in transition metals [PDF]

, 2005
The femtosecond optical pump-probe technique was used to study dynamics of photoexcited electrons and coherent optical phonons in transition metals Zn and Cd as a function of temperature and excitation level.
A. Debernardi, C. K. Sun, D. Pines, J.-C. Diels, Jure Demsar, Kiminori Ushida, Kunie Ishioka, M. Cardona, M. I. Kaganov, Masahiro Kitajima, Muneaki Hase, P. Grosse, R. H. M. Groeneveld, S. I. Anisimov, T. Dekorsy   +14 more
core   +2 more sources