Results 51 to 60 of about 120,634 (290)

Highly Sensitive MEMS Sensor Using Bimetallic Pd–Ag Nanoparticles as Catalyst for Acetylene Detection

Sensors, 2022
Acetylene detection plays an important role in fault diagnosis of power transformers. However, the available dissolved gas analysis (DGA) techniques have always relied on bulky instruments and are time-consuming.
Yuan Tian, Hui Qiao, Tao Yao, Shuguo Gao, Lujian Dai, Jun Zhao, Ying Chen, Pengcheng Xu   +7 more
doaj   +1 more source

Absorbance based light emitting diode optical sensors and sensing devices [PDF]

, 2008
The ever increasing demand for in situ monitoring of health, environment and security has created a need for reliable, miniaturised sensing devices. To achieve this, appropriate analytical devices are required that possess operating characteristics of ...
Acharya, Andrew, Anfalt, Barron, Beach, Benson, Berry, Betteridge, Betteridge, Betteridge, Betteridge, Blundell, Boring, Bowden, Cantrell, Cardoso, Carroll, Chapin, Chediak, Chen, Clinch, Collins, Collins, Collins, Dasgupta, Dasgupta, Dasgupta, Dasgupta, David, Daykin, Deng, Dermot Diamond, Diamond, Diamond, Dong, Dybko, Eiichi, Ellis, Eom, Feres, Ferrer, Firstenberg-Eden, Flaschka, Fonseca, Fonseca, Freeman, Galanis, Gardolinski, Gotz, Greenway, Gros, Gros, Gros, Hauser, Hauser, Hauser, Hauser, Higgins, Ho, Holonyak, Hooley, Huang, Ichikawa, Jambunathan, Johns, Johnson, Kawamura, King, Koch, Kovac, Kuban, Kuo, Lau, Lau, Lau, Lau, Lau, Lee, Li, Liu, Liu, Liu, Liu, Lu, Lu, Lyddy-Meaney, Marle, Martina O’Toole, Matias, Mims, Mims, Mitrani, O'Toole, O'Toole, O'Toole, Pacquit, Pacquit, Park, Petsul, Rainelli, Ramırez-Garcıa, Ramirez-Garcia, Riley, Rocha, Samanta, Santos, Schawarz, Schmidt, Schmidt, Schnable, Schrodle, Sequeira, Sequeira, Singh, Smardzewski, Smiddy, Sombatsompop, Sonne, Suzuki, Suzuki, Taib, Tan, Taniyasu, Teshima, Toda, Trojanowicz, Trojanowicz, Trojanowicz, Tubino, Tubino, Vachirapatama, White, Worsfold, Yamada, Yang, Zagatto, Zhang, Zude, Zukauskas   +138 more
core   +3 more sources

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Ultra-miniature and sensitive optical fiber-tip optomechanical resonant photoacoustic spectroscopy gas sensors

Photoacoustics
Optomechanical resonator (OMR)-based photoacoustic spectroscopy (PAS) sensors have garnered significant attention for ultra-sensitive and selective trace-gas detection.
Taige Li, Pengcheng Zhao, Peng Wang, Shangming Liu, Linhao Guo, Wei Jin, A. Ping Zhang   +6 more
doaj   +1 more source

Distributed environmental monitoring [PDF]

, 2013
With increasingly ubiquitous use of web-based technologies in society today, autonomous sensor networks represent the future in large-scale information acquisition for applications ranging from environmental monitoring to in vivo sensing.
Cleary, John, Collins, Fiachra, Diamond, Dermot, Fay, Cormac, Zuliani, Claudio   +4 more
core  

Zeptonewton force sensing with nanospheres in an optical lattice [PDF]

, 2016
Optically trapped nanospheres in high-vaccum experience little friction and hence are promising for ultra-sensitive force detection. Here we demonstrate measurement times exceeding $10^5$ seconds and zeptonewton force sensitivity with laser-cooled silica
Casey, Kirsten, Cunningham, Mark, Geraci, Andrew A., Ranjit, Gambhir   +3 more
core   +3 more sources

Dual-comb optomechanical spectroscopy

Nature Communications, 2023
Optical cavities are essential for enhancing the sensitivity of molecular absorption spectroscopy, which finds widespread high-sensitivity gas sensing applications.
Xinyi Ren, Jin Pan, Ming Yan, Jiteng Sheng, Cheng Yang, Qiankun Zhang, Hui Ma, Zhaoyang Wen, Kun Huang, Haibin Wu, Heping Zeng   +10 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Improvement of the Detection Sensitivity for Tunable Diode Laser Absorption Spectroscopy: A Review

Frontiers in Physics, 2022
Tunable Diode Laser Absorption Spectroscopy (TDLAS), a trace gas sensing technology based on infrared absorption spectroscopy, has been developed rapidly in the past few decades.
Shan Lin, Shan Lin, Jun Chang, Jiachen Sun, Peng Xu   +4 more
doaj   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source