Results 31 to 40 of about 17,791 (261)

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Correction of the radon exhalation rate using the Kalman filtering to reduce measurement errors

Nuclear Engineering and Technology
The RAD7 detector is widely used for measuring the radon exhalation rate from the surfaces of media such as soil, rocks, and building materials. However, during the measurement process, the accuracy of the results is prone to interference due to the ...
Haoyu You, Jianfeng Tang, Zhongkai Fan, Ruomei Xie, Hongzhi Yuan, Yanliang Tan   +5 more
doaj   +1 more source

Radon Concentrations and Radon Exhalation Rate in Some Samples of Fertilizers Used in Iraq

Journal of Kufa-Physics, 2017
In present study, radon concentrations were measured for  some fertilizers samples . These samples were collected from local markets of Najaf province, Iraq.
Azhar S. Alaboodi
doaj   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Experimental study on the radon exhalation characteristics of block walls currently used in China

Nuclear Engineering and Technology
In order to establish a predictive model for indoor radon concentration in Chinese buildings, walls were constructed using Chinese-style bricks to study the relationship between radon exhalation rates and indoor radon concentrations, as well as the ...
Shuyuan Liu, Li Zhang, Jinsheng Jiang, Xin Wang, Jimin Zhao, Lihai Zheng, Yongzhong Ma, Zhen Zhang, Qiang Xiong, Yanhui Sui, Shanshan Bo, Wei Cheng, Dong Yan, Tianyu Teng, Lixin Gao, Kuke Ding   +15 more
doaj   +1 more source

Comparison of measured exhaled nitric oxide at varying flow rates [PDF]

Thorax, 2005
Altered levels of exhaled nitric oxide (FeNO) have been well documented in a number of conditions, although it is in asthma that this phenomenon has been most extensively investigated.1 Raised FeNO levels in patients with asthma have been correlated not only with other markers of airway inflammation (including induced sputum eosinophil count), but also
D, Menzies, T, Fardon, P, Burns, B J, Lipworth   +3 more
openaire   +2 more sources

SERS Facemask for Rapid and Portable Sensing Mycobacterium Tuberculosis Antigens for TB Screening

Advanced Science, EarlyView.
Our study introduced an Au─Ag embedded covalent organic framework (U@COF) ‐mediated facemask for sensing TB antigen ESAT‐6/CFP‐10 complex in clinical droplet samples toward TB screening. Practical analysis of clinical samples demonstrated the availability of our facemask, which is capable of identifying the TB subjects (N = 17) from healthy candidates (
Lingzhi Chen, Jiaqi Yu, Jing Xu, Lingqi Chen, Ninghao Zhang, Wenrui Li, Runmin Zeng, Xiaomin Luo, Yiqun Chang, Jiayin Lai, Wenshi Huang, Xiaochen Liang, Ting Zhao, Shanze Chen, Huaihong Cai, Yanguang Cong, Pinghua Sun, Jiang Pi, Xueqin Huang, Haibo Zhou, Junxia Zheng   +20 more
wiley   +1 more source

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Multiple point rapid measurement method for radon exhalation rate in uranium tailings reservoir and its application

四川大学学报. 自然科学版, 2018
Based on the principle of that the equivalent decay constant of perforated accumulation chamber, we propose a new method to rapidly measure the surface radon exhalation rate with multi-point detection technique.
LI Zhi-Qiang, XIAO De-Tao, ZHAO Gui-Zhi, CHEN Ji-You, ZHOU Yi   +4 more
doaj  

Study on influence of soil and atmospheric parameters on radon/thoron exhalation rate in the Bangalore University campus, Bengaluru

Radiation Protection and Environment, 2018
In the present study, Radon (222Rn) and Thoron (220Rn) concentration have been measured in the Bangalore University Campus using RAD7 during the postmonsoon season. The results reveal that 222Rn concentration ranged from 360 ± 146 to 643 ± 196 Bq/m3 with
M B Karthik Kumar, N Nagaiah, Gladys Mathews, M R Ambika   +3 more
doaj   +1 more source