Results 81 to 90 of about 182,357 (309)

Role of Histidine‐Containing Peptoids in Accelerating the Kinetics of Calcite Growth

Advanced Functional Materials, EarlyView.
Amphiphilic histidine‐containing peptoids mimic carbonic anhydrase (CA) to accelerate calcite step growth. In the presence of Zn2+, they promote the deprotonation of HCO3−, the desolvation of Ca2+, and the reorganization of interfacial hydration layers, thereby reducing the activation barrier for calcite growth.
Mingyi Zhang, Ying Chen, Chenyang Shi, Progyateg Chakma, James J. De Yoreo, Chun‐Long Chen   +5 more
wiley   +1 more source

Ship roll damping via direct inverse neural network control system

Alexandria Engineering Journal, 2018
Undesired roll motions of surface vessels under sea way have negative influence on passengers, crew members, equipment and cargo. Damping roll motions is a complex problem due to unpredictable and irregular nature of marine environmental disturbances ...
Taher Awad, Mohamed Abd-elfatah Elgohary, Tawfik Elemam Mohamed   +2 more
doaj   +1 more source

Apparent phonon side band modes in pi-conjugated systems: polymers, oligomers and crystals

, 2006
The emission spectra of many pi-conjugated polymers and oligomers contain side-band replicas with apparent frequencies that do not match the Raman active mode frequencies. Using a time dependent model we show that in such many mode systems, the increased
C.C. Wu, E. Ehrenfreund, Gierschner, Hadziioannou, Heller, Meinardi, Nakajima, Oelkrug, Orion, Spano, Spano, Spano, Spano, Tutt, Woo, Wu, Z.V. Vardeny   +16 more
core   +1 more source

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

Advanced Functional Materials, EarlyView.
An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi, Sumukh Shankar Sharadaprasad, Rochus Schmid   +2 more
wiley   +1 more source

Optimum mix of passive and active control of space structures [PDF]

The objective of this research was to test vibration suppression (settling time and jitter) of a large space structure (LSS) characterized by low frequency high global vibration modes.
Richards, Ken, Rogers, Lynn
core   +1 more source

Damping of Electron Density Structures and Implications for Interstellar Scintillation

, 2011
The forms of electron density structures in kinetic Alfven wave turbulence are studied in connection with scintillation. The focus is on small scales $L \sim 10^8-10^{10}$ cm where the Kinetic Alfv\'en wave (KAW) regime is active in the interstellar ...
Boldyrev, Boldyrev, Boldyrev, Canuto, Howes, K. W. Smith, Kinney, P. W. Terry, Sutton, Terry, Williamson, Williamson, Williamson   +12 more
core   +1 more source

Chiral SURMOFs for Vibrational Circular Dichroism: Multiscale Modeling and Experimental Insights

Advanced Functional Materials, EarlyView.
The use of solid‐state vibrational circular dichroism (VCD) for MOFs is still somewhat unexplored, and in this work, it is shown that chiral surface‐anchored MOFs (SURMOFs) grown on CaF2 provide an excellent platform for VCD. Experimental results are validated through multiscale modeling, showing strong agreement across multiple spectroscopic ...
Ana C. Fingolo, Nadine von Coelln, Benedikt Zerulla, Marjan Krstić, Christian Huck, Thomas G. Mayerhöfer, Christoph Krafft, Petra Tegeder, Carsten Rockstuhl, Christof Wöll   +9 more
wiley   +1 more source

Invariant points of semi-active suspensions

Advances in Mechanical Engineering, 2018
The invariant points of the quarter vehicle model shape many properties concerned in vehicle suspension design. Although they have been studied for years, the invariant points are still confusing for their different traits.
Shida Nie, Ye Zhuang, Fan Chen, Jie Xie
doaj   +1 more source

Fluorine‐Free Soft Nanocomposites for High‐Speed Liquid Impact Repellence

Advanced Functional Materials, EarlyView.
Fluorine‐free soft nanocomposite coatings are developed using silicone oil‐mediated mechanical‐stiffness control, enabling ‘dry’ liquid‐repellent surfaces that resist high‐speed water jet impacts up to ∼60 m/s. By tuning nanoparticle loading and oil content, the coatings also achieve >90% optical transparency, amphiphobicity with impact resistance to ...
Priya Mandal, Vikramjeet Singh, Rohit Gupta, Prasenjit Kabi, Manish K. Tiwari   +4 more
wiley   +1 more source

Structural Design and Vibration Suppression Characteristics Analysis of Semi-Active Eddy Current Damping Seat

Applied Sciences
As components in direct contact with drivers and passengers in complex and challenging road conditions, automotive seats need to effectively absorb and isolate vibrations from the automotive chassis to minimize any adverse effects on the human body.
Shaofeng Wu, Xiaoming Zhou, Hongrui Xu, Puwei Mu   +3 more
doaj   +1 more source