Results 91 to 100 of about 118,203 (310)

Modelling and interpretation of gas detection using remote laser pointers [PDF]

, 2006
Special Issue: 5th International Conference on Tunable Diode Laser Spectroscopy, 11-15 July 2005, Florence, ItalyWe have developed a quantitative model of the performance of laser pointer style gas leak detectors, which are based on remote detection of ...
Hodgkinson, J., van Well, Ben, Pride, R.D., Padgett, Miles, Hodgkinson, Jane, Pride, Russ D., van Well, B., Padgett, M.   +7 more
core   +1 more source

Dementia Incidence in Individuals With Parkinson's Disease in the Framingham Heart Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Limited information exists on incident dementia in individuals with Parkinson's disease (PD) in US community‐based samples. We examined cognitive statuses and PD diagnoses of 183 individuals in the Framingham Heart Study (FHS) to establish incident dementia, mortality rates, associations with sex, age at PD onset, and education level.
Joshi Dookhy, Michael Cummings, Eden Price, Yulin Liu, Santiago Gutierrez‐Gomez, Sarah O'Shea, Samuel Frank, Rhoda Au, Ashita S. Gurnani, Ting Fang Alvin Ang, Jesse Mez, Ludy C. Shih   +11 more
wiley   +1 more source

Low-Cost and High-Performance ZnO Nanoclusters Gas Sensor Based on New-Type FTO Electrode for the Low-Concentration H2S Gas Detection

Nanomaterials, 2019
A low-cost and high-performance gas sensor was fabricated by the in-situ growing of ZnO nanoclusters (NCs) arrays on the etched fluorine-doped tin dioxide (FTO) glass via a facile dip-coating and hydrothermal method.
Guodong Zhao, Jingyue Xuan, Xiaolin Liu, Fuchao Jia, Yuping Sun, Meiling Sun, Guangchao Yin, Bo Liu   +7 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Flicker Noise in Resistive Gas Sensors—Measurement Setups and Applications for Enhanced Gas Sensing

Sensors
We discuss the implementation challenges of gas sensing systems based on low-frequency noise measurements on chemoresistive sensors. Resistance fluctuations in various gas sensing materials, in a frequency range typically up to a few kHz, can enhance gas
Janusz Smulko, Graziella Scandurra, Katarzyna Drozdowska, Andrzej Kwiatkowski, Carmine Ciofi, He Wen   +5 more
doaj   +1 more source

3D Architectured Graphene/Metal Oxide Hybrids for Gas Sensors: A Review

Sensors, 2018
Graphene/metal oxide-based materials have been demonstrated as promising candidates for gas sensing applications due to the enhanced sensing performance and synergetic effects of the two components.
Yi Xia, Ran Li, Ruosong Chen, Jing Wang, Lan Xiang   +4 more
doaj   +1 more source

Ordered porous metal oxide semiconductors for gas sensing

, 2018
Among various gas sensing materials, metal oxide semiconductors have shown great potential as resistive type sensors. The ordered porous structural metal oxide semiconductors with well-defined meso- or macro-pores chemically synthesized via soft ...
Ahmed A. Elzatahry, Xiaowei Cheng, Dongyuan Zhao, Yonghui Deng, Zhao, Dongyuan, Deng, Yonghui, Yongheng Zhu, Zhou, Xinran, Xinran Zhou, Elzatahry, Ahmed A, Abdulaziz Alghamdi, Cheng, Xiaowei, Zhu, Yongheng, Alghamdi, Abdulaziz   +13 more
core   +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

Hydrogen gas sensing performance of Pt/SnO2 nanowires/SiC MOS devices [PDF]

, 2008
This paper presents material and gas sensing properties of Pt/SnO2 nanowires/SiC metal oxide semiconductor devices towards hydrogen. The SnO2 nanowires were deposited onto the SiC substrates by vapour-liquid-solid growth mechanism.
Kalantar-zadeh, K., Comini, E., Ferroni, M., Wlodarski, W., Kaciulis, S., W. Wlodarski, G. Sberveglieri, E. Comini, K. Kalantar-zadeh, S. Kaciulis, Shafiei, M., L. Pandolfi, M. Shafiei, Sberveglieri, G., Pandolfi, L., M. Ferroni   +15 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source