Results 101 to 110 of about 77,548 (281)

Switchable Supramolecular Adhesive by Tuning Interfacial Bonding and Modulus

Advanced Functional Materials, EarlyView.
The supramolecular adhesive (HyDiP) shows reversible adhesion and recyclability. In the dehydrated state, it is dense, stiff (E ≈445 MPa), transparent, and provides strong bonding with adhesion strengths up to 4.65 MPa. In the hydrated state, it becomes porous, soft (E ≈0.11 MPa), and detaches easily, enabling sustainable high‐strength applications ...
Rumin Fu, Cairong Xiao, Zihao Du, Changhong Linghu, Yongdong Shi, Chuyang Xiang, Mingxin Wan, Guoxin Tan, Limin Lu, Chengyun Ning, K Jimmy Hsia   +10 more
wiley   +1 more source

Physical mechanism of ice/structure interaction

Journal of Glaciology, 2018
To obtain the effect of velocity and structural natural frequency (structural stiffness) on ice failure, an extended dynamic Van der Pol-based single degree-of-freedom ice/structure interaction model is developed.
XU JI, ERKAN OTERKUS
doaj   +1 more source

Propagating front in an excited granular layer

, 1998
A partial monolayer of ~ 20000 uniform spherical steel beads, vibrated vertically on a flat plate, shows remarkable ordering transitions and cooperative behavior just below 1g maximum acceleration.
A. Kudrolli, A. Lorenz, A. Puglisi, C. S. Campbell, D. G. W. Cooper, F. Gerl, G. Peng, H. M. Jaeger, H. M. Jaeger, I. Goldhirsch, J. P. Gollub, J. S. Olafsen, L. Labous, M. A. Hopkins, N. B. Tufillaro, S. Luding, S. McNamara, S. McNamara, S. Warr, T. A. Knight, W. Losert, Y. Du   +21 more
core   +2 more sources

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

Self-excited vibrations of overhead transmission lines [PDF]

The Journal of the Acoustical Society of America, 1976
There are three principal types of vibration which occur on overhead lines and which are of engineering significance. These are classified as aeolian- or vortex-shedding-induced, wake-induced, and the bluff-body or galloping type of mechanical oscillation. The latter two are self-excited and are discussed in some detail.
openaire   +1 more source

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

Advanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan, Wentao Wang, Xiu Liang, Yongliang Zhang, Jie Liu, Yu Bai, Dangyuan Lei   +6 more
wiley   +1 more source

Dynamic Characteristics and Stability Analysis of Space Shuttle Main Engine Oxygen Pump [PDF]

, 1991
The dynamic characteristics of the Space Shuttle high pressure oxygen pump are presented. Experimental data is presented to show the vibration spectrum and response under actual engine operation and also in spin pit testing for balancing. The oxygen pump
Branagan, Lyle, Gunter, Edgar J.
core   +1 more source

Carbon Contacts to Proteins Enable Robust, Biocompatible Electronic Junctions with Near‐Activation‐less Conduction Down to 10 K

Advanced Functional Materials, EarlyView.
A robust solid‐state protein junction with a semi‐transparent eC/Au electrode allows photoexcitation of the bacterio‐rhodopsin, bR layer, to isomerize the bR retinal. The resulting photo‐response shows the protein is functional in the solid‐state junction.
Shailendra K. Saxena, Sudipta Bera, Tatyana Bendikov, Israel Pecht, Mordechai Sheves, David Cahen   +5 more
wiley   +1 more source

Study on optimal design of mistuned bladed disk

Nihon Kikai Gakkai ronbunshu, 2018
Although, in designing blades, it is assumed that all blades on a disk are identical (tuned system), the vibration characteristics of the blade is slightly different due to the manufacturing tolerance, the deviation of the material property, and so on ...
Yasutomo KANEKO, Seita KISHIMOTO, Kazushi MORI, Hiroharu OOYAMA   +3 more
doaj   +1 more source

Unified description of structure and reactions: implementing the Nuclear Field Theory program

, 2015
The modern theory of the atomic nucleus results from the merging of the liquid drop (Niels Bohr and Fritz Kalckar) and of the shell model (Marie Goeppert Meyer and Axel Jensen), which contributed the concepts of collective excitations and of independent ...
Barranco, Francisco, Bortignon, Pier Francesco, Broglia, Ricardo A., Idini, Andrea, Potel, Gregory, Vigezzi, Enrico   +5 more
core   +1 more source