Results 271 to 280 of about 670,280 (308)

Room-Temperature Negative Differential Resistance in Surface-Supported Metal-Organic Framework Vertical Heterojunctions.

Small, 2021
The advances of surface-supported metal-organic framework (SURMOF) thin-film synthesis have provided a novel strategy for effectively integrating metal-organic framework (MOF) structures into electronic devices.
L. G. Albano, D. H. S. de Camargo, G. R. Schleder, Samantha G Deeke, T. P. Vello, Leirson D. Palermo, C. C. Corrêa, A. Fazzio, C. Wöll, C. Bufon   +9 more
semanticscholar   +1 more source

Controlled Drug Release from Polymeric Delivery Devices II: Differentiation Between Partition-Controlled and Matrix-Controlled Drug Release Mechanisms

Journal of Pharmaceutical Sciences, 1974
The drug release pattern of micronized ethynodiol diacetate from silicone devices was thoroughly investigated in polyethylene glycol-containing elution media with a wide range of solubility and partition properties. When high drug solubility was maintained, the drug release pattern followed a Q - t1/2 relationship (matrix controlled). Under this matrix-
Y W, Chien, H J, Lambert
openaire   +2 more sources

Tunneling injection into modulation doping structures: a mechanism for negative differential resistance three-terminal high-speed devices

IEEE Transactions on Electron Devices, 1988
A tunneling injection mechanism into the channel of a modulation doping field effect transistor is discussed. In the presaturation regime of the drain current, the source current exhibits negative differential resistance as a result of the charge control by the gate field in the channel.
J.-P. Leburton, J. Kolodzey
openaire   +1 more source

Development of a uniaxial mechanical loading device to evaluate osteogenic differentiation of stem cells seeded on a scaffold material

2015 International Symposium on Micro-NanoMechatronics and Human Science (MHS), 2015
The present study was designed to investigate the effect of the uniaxial mechanical strain on the proliferation and differentiation of mouse mesenchymal stem D1 cells seeded into the octacalcium phosphate (OCP)/ Gelatin (Gel) composite in vitro. The mechanical stimulation with a uniaxial loading device was analyzed by finite element analysis in order ...
Masakazu Yamada, Takahisa Anada, Taisuke Masuda, Teruko Takano-Yamamoto, Osamu Suzuki   +4 more
openaire   +1 more source

Nonlinear oscillations of a lumped system with series spring, piezoelectric device, and feedback controller

Scientific Reports
This paper examines the behavior of a mechanical system with a lumped- mass comprising two nonlinear springs arranged in series and combined with a piezoelectric device.
M. Abohamer, T. Amer, A. Galal, Mona A Darweesh, A. Arab, Taher A. Bahnasy   +5 more
semanticscholar   +1 more source

Preliminary Study on Multibody Modeling and Simulation of an Underactuated Gripper With Differential Transmission

Volume 9: 17th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), 2021
Robotic grippers have represented a challenge for designers and engineers since at least three decades, due to the complexity of grasping and manipulation tasks.
G. M. Achilli, Silvia Logozzo, M. C. Valigi, M. Malvezzi   +3 more
semanticscholar   +1 more source

Quantitative study of meso-damage process on concrete by CT technology and improved differential box counting method

, 2020
To study the change of concrete internal structure before and after stress, the meso-mechanical experiment of concrete was conducted using CT technology and a portable dynamic loading device.
Le Zhang, F. Dang, W. Ding, L. Zhu
semanticscholar   +1 more source

Increase in Frequency of Terminally Differentiated and Exhausted CD8+ T Cells Is Associated with Worse Clinical Outcomes after Mechanical Circulatory Support Device Implantation

The Journal of Heart and Lung Transplantation, 2016
LVAD+Pulsatility immediately post-OHT, with partial attenuation of this difference by 6 months, and normalization by 12 months post-OHT. Conclusion: Aortic stiffness is markedly increased immediately post-OHT among patients bridged with CF-LVADs, with attenuation of this increased stiffness over the first year after transplant.
J.M. Schaenman, Y. Korin, T. Sidwell, E. Chang, M. Bakir, N. Wisniewski, G. Bondar, M. Cadeiras, M. Kwon, E. Reed, M. Deng   +10 more
openaire   +1 more source

The negative differential resistance mechanism of a molecular device based on double‐cage fluorinated fullerene C₂₀F₁₈(NH)₂C₂₀F₁₈: A theoretical study

International Journal of Quantum Chemistry, 2018
AbstractThe electronic transport properties of the molecular device based on double‐cage fluorinated fullerene C20F18(NH)2C20F18 were studied theoretically. The results show that the device exhibits two negative differential resistance (NDR) peaks in its I‐V curve.
Jiang‐yu Bian, Yang Zhang, Ying‐fei Chang   +2 more
openaire   +1 more source

The mechanical, thermal and morphological properties of γ-irradiated PLA/TAIC and PLA/OvPOSS

Radiation Physics and Chemistry, 2018
In the present work, various blend ratios of poly (lactic acid) (PLA), triallylisocyanurate (TAIC) and octavinyl-POSS (OvPOSS) were prepared by melt compounding in an Xplore microcompounder and molded by an Xplore microinjection molding device. POSS is a
M. Kodal, A. A. Wis, G. Ozkoc
semanticscholar   +1 more source