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Correlation Between Airflow Patterns and Performance of a Laboratory Fume Hood

Li-Ching Tseng, Rong Fung Huang, Chih-Chieh Chen, C. -P. Chang
2006 Journal of Occupational and Environmental Hygiene  
and the real-time tracer gas (SF 6 ) leakage were studied via the laser-assisted flow visualization method and the standard/special gas sampling technique, respectively.  ...  It is suggested that a method based on the aerodynamic features and multipoint leakage detections would reflect a more realistic evaluation of overall performance of laboratory fume hood than a single-point  ...  The effects of the fume hood geometry and the presence of the manikin on the contaminant leakages evaluated by tracer gas concentration measurement methods were investigated.  ... 
doi:10.1080/15459620601015695 pmid:17133690 fatcat:5x4sxu5z55by3nlz2spkr6y3re

Resonance-Enhanced Quantum Well Micropillar Array with Ultra-Narrow Bandwidth and Ultra-High Peak Quantum Efficiency

Hanxiao Shao, Yun Xu, Longfeng Lv, Bo Cheng, Guofeng Song
2022 Electronics  
Infrared cameras with narrow-band detection capability are widely used for SF6 gas detection, which is an essential part of power equipment inspection.  ...  Narrow-band detection is usually achieved by a combination of quantum well infrared photodetectors (QWIPs) and narrow-band filters.  ...  Acknowledgments: The authors would like to thank the reviewers for their helpful comments and criticism. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/electronics11091396 doaj:3090a6aead5641b6853cbf2ad19fa668 fatcat:4rnndkzhsfa67cnomvzia3bb6i

New Technologies for Sentinel Lymph Node Detection

Amit Goyal
2018 Breast Care  
Contrast-Enhanced Ultrasound Scan By using an ultrasound (US) contrast agent and the contrastspecific mode of the US machine, dynamic contrast-enhanced ultrasound scan (CEUS) images can be obtained to  ...  After destruction of the microbubble, SF6 gas is excreted only through the lungs without any excretion through the kidney or the liver.  ... 
doi:10.1159/000492436 pmid:30498420 pmcid:PMC6257081 fatcat:oiq5w4e5mbdktijjz4o5xobbwe

A Novel Pipeline Leak Recognition Method of Mine Air Compressor Based on Infrared Thermal Image Using IFA and SVM

Kuangwei Tong, Zhongbin Wang, Lei Si, Chao Tan, Peiyang Li
2020 Applied Sciences  
In the proposed method, the adaptive step strategy and local optimal firefly self-search strategy for the basic firefly algorithm (FA) are used to improve the optimization effect.  ...  Then the IFA is utilized to optimize the parameters of SVM so as to construct an optimal classifier for fault diagnosis.  ...  [6] used an infrared camera to detect the leakage of SF6 gas, improving the detection efficiency. Slobodan Dudić et al.  ... 
doi:10.3390/app10175991 fatcat:r7njpip2wffjtdnx44jwkm6n3e

The Relevance of Geochemical Tools to Monitor Deep Geological CO2 Storage Sites [chapter]

Jeandel Elodie, Sarda Philippe
2012 Geochemistry - Earth's System Processes  
Costs and deployment methods The criteria of an efficient and cost-effective use of tracers should be as follows: sensitivity to detection by analytical methods, low usage volume, and easy handling.  ...  Dissolved CO 2 is unlikely to be detected by any seismic method because of the low acoustic contrast between brine saturated with CO 2 and brine without CO 2 .  ...  An effective management of geological and environmental issues requires the understanding of recent research in minerals, soil, ores, rocks, water, sediments.  ... 
doi:10.5772/32098 fatcat:leskqzeykveq7f57oiqvt3jpvm

SOI-based monolithic integration of SiON and Si planar optical circuits

Oded Cohen, Richard Jones, Omri Raday, Alexander Fang, Nahum Izhaky, Doron Rubin, Mario Paniccia, Giancarlo C. Righini
2006 Integrated Optics, Silicon Photonics, and Photonic Integrated Circuits  
We have achieved low propagation loss, single mode, and rib waveguides for both Silicon and SiON core regions as well as low loss silicon-SiON waveguides junction.  ...  The demonstration of a processing scheme that yields low loss waveguides for both silicon and SiON as well as efficient transition of light between the two materials is the goal of this present work.  ...  processing, and to Sean Koehl for data collection software.  ... 
doi:10.1117/12.662548 fatcat:5vyj2zhtrna5rowraoeydtc5se

CO2 Fixation by Membrane Separated NaCl Electrolysis

Hyun Park, Ju Lee, JunYoung Han, Sangwon Park, Jinwon Park, Byoung Min
2015 Energies  
Following the experiment, the resulting product CaCO3 was analyzed with Fourier transform infrared spectroscopy (FT-IR); field emission scanning electron microscopy (FE-SEM) image and X-ray diffraction  ...  The study shows a successful method for fixating CO2 by reducing carbon dioxide released into the atmosphere while forming high-purity CaCO3. OPEN ACCESS Energies 2015, 8 8705  ...  CO2 is one of the six major gases causing global warming (CO2, CH4, N2O, HFCs, PFCs, SF6) [2] , accounting for an estimated 80% of the greenhouse gases by amount [3] .  ... 
doi:10.3390/en8088704 fatcat:qosjri5bsrfxvnnpgnlj47tf2u

Tissue plasminogen activator-based nanothrombolysis for ischemic stroke

Shan Liu, Xiaozhou Feng, Rong Jin, Guohong Li
2017 Expert Opinion on Drug Delivery  
Theranostic nanocarriers co-delivered with tPA and imaging agents are also promising for future stroke management.  ...  for treatment of ischemic stroke.  ...  Micro-bubbles-Micro-bubbles (MB) are tiny gas-or air-filled microspheres and were first used as contrast agents for imaging due to their acoustic characteristics 55 .  ... 
doi:10.1080/17425247.2018.1384464 pmid:28944694 pmcid:PMC5780255 fatcat:3lvouzhsdbce5jivj2dpdvjoye

Functionalisation of carbon nanotubes for molecular electronics

N PLANK
2004 Microelectronic Engineering  
The first involves plasma functionalisation method where elemental sulphur and CNTs were heated to 120°C in an argon/hydrogen plasma.  ...  Firstly the conversion of the inherent p-type field effect behaviour of the CNTs to n-type field effect behaviour and secondly to control the positioning of CNT5 on a substrate.  ...  Acknowledgements The authors would like to thank Ronald Brown with assistance in the XPS measurements and Francesca Fabbiuni for assistance in the Raman spectroscopy measurements.  ... 
doi:10.1016/j.mee.2004.02.088 fatcat:mazq2sagrfcwzpzwn4ubemkp2m

Functionalisation of carbon nanotubes for molecular electronics

N PLANK
2004 Microelectronic Engineering  
The first involves plasma functionalisation method where elemental sulphur and CNTs were heated to 120°C in an argon/hydrogen plasma.  ...  Firstly the conversion of the inherent p-type field effect behaviour of the CNTs to n-type field effect behaviour and secondly to control the positioning of CNT5 on a substrate.  ...  Acknowledgements The authors would like to thank Ronald Brown with assistance in the XPS measurements and Francesca Fabbiuni for assistance in the Raman spectroscopy measurements.  ... 
doi:10.1016/s0167-9317(04)00142-x fatcat:p62vlvdm3fealdk3hvj5eqr7le

Silicon Nanowire Waveguides and Their Applications in Planar Wavelength Division Multiplexers/Demultiplexers [chapter]

Jun Song, Jinfei Ding
2011 Nanowires - Fundamental Research  
The method shown in Figure 22 has effectively been used for the polarization compensation of AWGs. However, the same method can not be used for the case of EDGs.  ...  The same method is also effective for an AWG case. A schematic of the polarization compensated waveguide demultiplexer based on an etched diffraction grating is presented in Figure 22 .  ...  In the last few years, InTech scientific publisher has been taking the initiative of helping worldwide scientists to share and improve the methods and the nanowire technology.  ... 
doi:10.5772/16290 fatcat:i52ts573dzhwnna4kdupdhijgy

Metasurface Photodetectors

Jinzhao Li, Junyu Li, Shudao Zhou, Fei Yi
2021 Micromachines  
In this paper, we review recent research efforts in merging metasurfaces with photodetectors towards improved detection performances and advanced detection schemes.  ...  Single crystal Silicon was processed by an ultrafast laser in an SF6 atmosphere.  ...  With the narrow bandwidth of 44 nm and the wide block region, the DBR based RCE-PD is suitable for detection of narrow gas absorption features [36] .  ... 
doi:10.3390/mi12121584 pmid:34945434 pmcid:PMC8704368 fatcat:jyxhyarsnbakzix2ss75cbz4ru

Iris Hooks [chapter]

Melanie Bödemann, Thomas Kohnen
2018 Encyclopedia of Ophthalmology  
Two different methods are used: direct ophthalmoscopy with an upright image and indirect ophthalmoscopy with an inverted image.  ...  The use of infrared light allows for imaging the pupil without constricting it and without being noticed by the subject.  ...  This scale assigns a number between 0 and 4 for all lens opacities for three cataract types: nuclear sclerosis, posterior subcapsular cataracts, and cortical cataracts.  ... 
doi:10.1007/978-3-540-69000-9_467 fatcat:g5dfivhxhjeqjbojwqklnyui6m

The multiscale boiling investigation on-board the International Space Station: An overview

A. Sielaff, D. Mangini, O. Kabov, M.Q. Raza, A.I. Garivalis, M. Zupančič, S. Dehaeck, S. Evgenidis, C. Jacobs, D. Van Hoof, O. Oikonomidou, X. Zabulis (+13 others)
2022 Applied Thermal Engineering  
Over 3000 data sets have been generated over an 11-month measurement period.  ...  For this purpose, single or few subsequential bubbles are selectively ignited on a heated substrate using a short laser pulse.  ...  to Multiscale Boiling, and for the fruitful discussions.  ... 
doi:10.1016/j.applthermaleng.2021.117932 fatcat:2z3obszwyjb57oy6hjqa5ibla4

State of the Art and Future Perspectives in Advanced CMOS Technology

Henry H. Radamson, Huilong Zhu, Zhenhua Wu, Xiaobin He, Hongxiao Lin, Jinbiao Liu, Jinjuan Xiang, Zhenzhen Kong, Wenjuan Xiong, Junjie Li, Hushan Cui, Jianfeng Gao (+8 others)
2020 Nanomaterials  
This article presents a review of new architectures, simulation methods, and process technology for nano-scale transistors on the approach to the end of ITRS technology.  ...  The discussions cover innovative methods, challenges and difficulties in device processing, as well as new metrology techniques that may appear in the near future.  ...  TaBN is the current standard absorber, but for low-k1 imaging, the three-dimensional effect of the mask results in degradation of image contrast and edge placement errors.  ... 
doi:10.3390/nano10081555 pmid:32784801 pmcid:PMC7466708 fatcat:yssyxekom5hslivtbxbphjg6h4
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