Results 51 to 60 of about 287,612 (239)

Thickness‐Dependent Infrared Emissivity of Ultrathin Freestanding MoSiN Nanocomposite Membranes

Advanced Optical Materials, EarlyView.
ABSTRACT Metals and dielectrics show opposite trends in thickness‐dependent infrared emissivity: metallic films exhibit a rise in emissivity below a critical thickness, while dielectric films show a corresponding decline. For applications demanding both high emissivity and mechanical strength in membranes with nanoscale thickness, combining these ...
Reethu Sebastian, Amrid Amnache, Nadi Braidy, Luc G. Fréchette   +3 more
wiley   +1 more source

A Survey to Assess the Quality of the Data Obtained by Radio-Frequency Technologies and Microelectromechanical Systems to Measure External Workload and Collective Behavior Variables in Team Sports

Sensors, 2020
Electronic performance and tracking systems (EPTS) and microelectromechanical systems (MEMS) allow the measurement of training load (TL) and collective behavior in team sports so that match performance can be optimized.
Markel Rico-González, Asier Los Arcos, Daniel Rojas-Valverde, Filipe M. Clemente, José Pino-Ortega   +4 more
doaj   +1 more source

Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption

Advanced Optical Materials, EarlyView.
ABSTRACT Although conventional metal‐insulator‐metal (MIM) terahertz (THz) absorbers can provide near‐unity absorption, their multilayer stacks inevitably introduce additional thickness, mass, and residual stress, which limit their compatibility with THz thermal sensing platforms.
Zihao Zhao, Kazuho Harada, Qian Liu, Isao Morohashi, Xu Fang, Kazuhiko Hirakawa, Ya Zhang   +6 more
wiley   +1 more source

Cell Cycle Control of Nuclear Metabolism Couples Phosphatidylinositol Signaling to Histone Methylation

Advanced Science, EarlyView.
Nuclear metabolism oscillates during cell cycle progression. Quantitative chromatome proteomics and imaging reveal phase‐specific dynamics of PIP5K1A and nuclear PIP2, linking phosphatidylinositol metabolism to histone methylation. This work identifies nuclear lipid metabolism as a previously unrecognized regulatory axis coordinating chromatin ...
Antoni Gañez‐Zapater, Savvas Kourtis, Camilla Reiter Elbæk, Lorena Espinar, Carolina Toro‐Márquez, Albert Coll‐Manzano, Alfredo Smiriglia, Laura García‐López, Laura Wiegand, Maria Guirola, Frédéric Fontaine, Andrea Morandi, André C. Müller, Sara Sdelci   +13 more
wiley   +1 more source

Analysis of Au metal-metal contacts in a lateral actuated RF MEMS switch

, 2022
S.481-486This paper reports on the ohmic contacts of an radio-frequency micro-electro-mechanical-system (RF MEMS) switch. The structure of the MEMS is described briefly to give information about the organization of the switch device. The most significant
Gaitzsch, M., Kurth, Steffen, Voigt, S., Geßner, Thomas, Haas, S.   +4 more
core   +1 more source

Recent Advancements in Reconfigurable mmWave Devices Based on Phase-Change and Metal Insulator Transition Materials

IEEE Journal of Microwaves, 2023
Chalcogenide Phase Change Materials (PCM) and metal insulator transition (MIT) materials are a group of materials that are capable of switching between low resistance and high resistance states.
Tejinder Singh, Gwendolyn Hummel, Mohammad Vaseem, Atif Shamim   +3 more
doaj   +1 more source

Reliability of RF-MEMS

, 2005
The continuously evolving MEMS technology for RF/microwave applications poses issues regarding new reliability and lifetime estimation. We will overview the most important degradation mechanisms concerning capacitive and ohmic RF-MEMS devices and their effects on the device lifetime.
R. GADDI, A. GNUDI, TAZZOLI, AUGUSTO, MENEGHESSO, GAUDENZIO, ZANONI, ENRICO   +4 more
openaire   +4 more sources

Tailoring Vascular‐Immune Homeostasis via Manganese‐DNA Complex‐Armed Immunogenic Extracellular Vesicles for Pancreatic Cancer Immunotherapy

Advanced Science, EarlyView.
This study demonstrates that Mn2⁺–tumor DNA complexes encapsulated in dendritic cell (DC)– derived immunogenic extracellular vesicles (EVDC@Mn‐DNA) act as a DC‐specific cGAS– STING activator. EVDC@Mn‐DNA treatment enhances intratumoral DC activation, improves tumor vascular function, promotes CD8⁺ T cell activity, and suppresses pancreatic tumor growth,
Xue Jiang, Lihuan Shang, Xiaochun Chen, Xiangzhan Kong, Xiaojuan Wang, Linjia Jiang, Huiying Zhao, Yafeng Zhu, Cheng Huang, Shiyi Deng, Rui Zhang, Minghui Wang, Haoming Lin, Ping‐Pui Wong   +13 more
wiley   +1 more source

Accelerated testing of multi-walled CNT composite electrical contacts for MEMS switches

, 2014
The use of gold-coated multi-walled carbon nanotube (Au/MWCNT) bilayer composite surfaces has been discussed in previous work as a method for improving the reliability of switch contacts [1, 2].
Lewis, Adam P., Suan Hui Pu, Liudi Jiang, Jiang, Liudi, John W. McBride, McBride, John W., Pu, Suan-Hui, Adam P. Lewis   +7 more
core   +1 more source

Tuning Spring Constant of a Beam for a Promising Reduction in the Actuation Voltage of a V-Band RF MEMS Switch [PDF]

International Journal of Industrial Electronics, Control and Optimization
Radiofrequency microelectromechanical system (RF-MEMS) switches are utilized across a broad spectrum of industries, telecommunications, aerospace and smartphone technology.Herein, we proposed a new numerical and simulation analysis approach for spring ...
Farid Khamouei Touli, Javad Yavand Hasani   +1 more
doaj   +1 more source