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Articles de revues sur le sujet « Natural gas sensing »

Auteur : Grafiati

Publié le 2 juin 2025

Mis à jour le 31 juillet 2025

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1

Haus, Rainer, Rob Wilkinson, Jörg Heland, and Klaus Schäfer. "Remote sensing of gas emissions on natural gas flares." Pure and Applied Optics: Journal of the European Optical Society Part A 7, no. 4 (1998): 853–62. http://dx.doi.org/10.1088/0963-9659/7/4/020.

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Yuling, Zhao, Yang Jinzhong, and Zhang Zhi. "A Preliminary Study On Remote Sensing Monitoring Method For Oil And Gas Resources- A Case Study In Ordos Basin." E3S Web of Conferences 194 (2020): 01003. http://dx.doi.org/10.1051/e3sconf/202019401003.

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With the continuous improvement of the understanding of the geological law and continuous innovation of unconventional oil and gas exploration and mining technology, China has made great breakthroughs in newly-added geological reserves of unconventional oil and gas resources, such as shale gas, coalbed methane, etc. But for many reasons, attention has not been paid to oil and gas resources (petroleum, natural gas, coalbed methane, shale gas), and regional remote sensing monitoring research has not been carried out. Based on high-resolution remote sensing data of the year 2018 and human-compute

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Lan, Lijuan, Changsheng Zhang, Yibo Wang, Yu Xie, Luheng Wang, and Chunhua Yang. "Long-Tune Natural Logarithmic Wavelength Modulation Spectroscopy for Gas Sensing." Sensors 24, no. 22 (2024): 7365. http://dx.doi.org/10.3390/s24227365.

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This article presents a gas sensing method based on long-tune natural logarithmic wavelength modulation spectroscopy (long-tune ln-WMS) and explores means to improve its accuracy. The long-tune spectrum can detect multiple gases with high precision. In ln-WMS, due to the natural logarithm algorithm, the harmonic magnitude which is related to gas concentration would not be affected by the light intensity fluctuations. However, the background signal of the harmonic will become strong and nonlinear in the long-tune spectrum. Three CO2 absorption lines and one H2O line near 2004 nm are applied to

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Schneising, Oliver, Michael Buchwitz, Maximilian Reuter, Steffen Vanselow, Heinrich Bovensmann, and John P. Burrows. "Remote sensing of methane leakage from natural gas and petroleum systems revisited." Atmospheric Chemistry and Physics 20, no. 15 (2020): 9169–82. http://dx.doi.org/10.5194/acp-20-9169-2020.

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Abstract. The switch from the use of coal to natural gas or oil for energy generation potentially reduces greenhouse gas emissions and thus the impact on global warming and climate change because of the higher energy creation per CO2 molecule emitted. However, the climate benefit over coal is offset by methane (CH4) leakage from natural gas and petroleum systems, which reverses the climate impact mitigation if the rate of fugitive emissions exceeds the compensation point at which the global warming resulting from the leakage and the benefit from the reduction of coal combustion coincide. Conse

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Xu, Bin, Xin Lv, Hong Chao Wang, Dong Jie Tan, and Ying Jie Chen. "Research on Natural Gas Pipeline Leak Detection Based on Airborne Laser Remote Sensing." Applied Mechanics and Materials 130-134 (October 2011): 4158–63. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.4158.

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An airborne technology is proposed to detect in flight over natural gas pipeline with a high spatial resolution the presence of trace of methane on the ground. The principle and the architecture of the airborne laser remote sensing system are presented. Field test experiments are carried out on West-East Natural Gas Pipeline of China, and the results show that airborne detection method is suitable for detecting gas leak of pipeline on plain, desert, hills but unfit for the area with large altitude diversification.

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Chen, Yang, Wenshuang Zhang, Na Luo, Wei Wang, and Jiaqiang Xu. "Defective ZnO Nanoflowers Decorated by Ultra-Fine Pd Clusters for Low-Concentration CH4 Sensing: Controllable Preparation and Sensing Mechanism Analysis." Coatings 12, no. 5 (2022): 677. http://dx.doi.org/10.3390/coatings12050677.

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To detect low concentration of CH4 is indeed meaningful in industrial manufacturing, such as the petrochemical industry and natural gas catalysis, but it is not easy to detect low concentration of CH4 due to its high symmetrical and stable structure. In this work, defect-rich ZnO1−x nanoflowers (NFs) were synthesized by a two-step route so as to obtain defect-enhanced gas-sensing performance, namely hydrothermal synthesis followed by H2 treatment. In order to achieve low-concentration detection of CH4, the ultra-thin Pd clusters’ (Cs, diameter about 1–2 nm) sensitizer was synthesized and decor

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Mainson, Mederic, Charles Heath, Bobby Pejcic, and Emanuelle Frery. "Sensing Hydrogen Seeps in the Subsurface for Natural Hydrogen Exploration." Applied Sciences 12, no. 13 (2022): 6383. http://dx.doi.org/10.3390/app12136383.

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The recent detection of natural hydrogen seeps in sedimentary basin settings has triggered significant interest in the exploration of this promising resource. If large economical resources exist and can be extracted from the sub-surface, this would provide an opportunity for natural hydrogen to contribute to the non-carbon-based energy mix. The detection and exploration of hydrogen gas in the sub-surface is a significant challenge that requires costly drilling, sophisticated instrumentation, and reliable analytical/sampling methods. Here, we propose the application of a commercial-based sensor

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Wu, Mei, Guang Zhong Xie, Yong Zhou, and Hui Ling Tai. "A PVP-Based Quartz Crystal Microbalance Sensor for H₂S Detection." Applied Mechanics and Materials 651-653 (September 2014): 191–94. http://dx.doi.org/10.4028/www.scientific.net/amm.651-653.191.

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Hydrogen sulfide is a typical toxic, inflammable gas. The detection of H2S is crucial in the areas of oil, natural gas and so on. However, studies on H2S gas sensors at room temperature were seldom reported. In this study, Quartz crystal microbalance (QCM) sensors have been utilized, and PVP film were prepared on the QCM by airbrush method with different airbrush volume for H2S detection. The results showed that the PVP film with airbrush volume 0.2ml exhibited a better sensing response to H2S gas. Besides, sensitive characteristics parameters, i.e. selectivity, stability, linearity and sensit

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Sweelssen, Jörgen, Huib Blokland, Timo Rajamäki, Risto Sarjonen, and Arjen Boersma. "A Versatile Capacitive Sensing Platform for the Assessment of the Composition in Gas Mixtures." Micromachines 11, no. 2 (2020): 116. http://dx.doi.org/10.3390/mi11020116.

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The energy market is facing a major transition, in which natural gas and renewable gasses will play an important role. However, changing gas sources and compositions will force the gas transporters, gas engine manufacturers, and gas grid operators to monitor the gas quality in a more intensive way. This leads to the need for lower cost, smaller, and easy to install gas quality sensors. A new approach is proposed in this study that is based on the chemical interactions of the various gas components and responsive layers applied to an array of capacitive interdigitated electrodes. For Liquid Nat

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Xiong, Kangni, Jinbao Jiang, Yingyang Pan, Yande Yang, Xuhui Chen, and Zijian Yu. "Deep Learning Approach for Detection of Underground Natural Gas Micro-Leakage Using Infrared Thermal Images." Sensors 22, no. 14 (2022): 5322. http://dx.doi.org/10.3390/s22145322.

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The leakage of underground natural gas has a negative impact on the environment and safety. Trace amounts of gas leak concentration cannot reach the threshold for direct detection. The low concentration of natural gas can cause changes in surface vegetation, so remote sensing can be used to detect micro-leakage indirectly. This study used infrared thermal imaging combined with deep learning methods to detect natural gas micro-leakage areas and revealed the different canopy temperature characteristics of four vegetation varieties (grass, soybean, corn and wheat) under natural gas stress from 20

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Wang Lei, 汪磊, 谈图 Tan Tu, 王贵师 Wang Guishi, and 高晓明 Gao Xiaoming. "Natural Gas Pipeline Leak Detection System for Laser Remote Sensing and Calibration." Chinese Journal of Lasers 37, no. 11 (2010): 2912–17. http://dx.doi.org/10.3788/cjl20103711.2912.

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Pan, Xiaoquan, Jinbao Jiang, and Yiming Xiao. "Identifying plants under natural gas micro-leakage stress using hyperspectral remote sensing." Ecological Informatics 68 (May 2022): 101542. http://dx.doi.org/10.1016/j.ecoinf.2021.101542.

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SMULKO, JANUSZ, CLAES-GÖRAN GRANQVIST, and LASZLO B. KISH. "ON THE STATISTICAL ANALYSIS OF NOISE IN CHEMICAL SENSORS AND ITS APPLICATION FOR SENSING." Fluctuation and Noise Letters 01, no. 03 (2001): L147—L153. http://dx.doi.org/10.1142/s0219477501000366.

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Resistance noise data from a single gas sensor can be utilized to identify gas mixtures. We calculated the power spectral density. higher order probability densities and the bispectrum function of the recorded noise samples; these functions are sensitive to different natural vapors and can be employed to select a proper detection criterion for gas composites and odors.

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Wang, Shu Tao, Peng Wei Zhang, Le Gong, and Xiao Qing Shao. "Novel Optical Fiber Gas Sensing System Based on FBG Filtering." Advanced Materials Research 295-297 (July 2011): 1021–28. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.1021.

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Based on law of Beer-Lambert, a novel optical fiber gas sensing system is designed to determine the concentration of gas. The narrow-band filtering characteristic of optical fiber Bragg grating is used by this system to produce the narrow spectrum light signal which is wanted in difference absorption measuring. The system has full optical fiber structure, which is mainly composed by super luminescent emitting diode (SLED), optical fiber of 10km, optical fiber gas detector, optical fiber isolator, optical fiber coupler network, optical fiber detecting grating, photoelectric detector and data pr

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Shukla, Tarini, Wenwu Tang, Carl C. Trettin, Gang Chen, Shenen Chen, and Craig Allan. "Quantification of Microtopography in Natural Ecosystems Using Close-Range Remote Sensing." Remote Sensing 15, no. 9 (2023): 2387. http://dx.doi.org/10.3390/rs15092387.

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Microtopography plays an important role in various ecological, hydrologic, and biogeochemical processes. However, quantifying the characteristics of microtopography represents a data-intensive challenge. Over the last decade, high-resolution or close-range remote sensing data and techniques have emerged as powerful tools to quantify microtopography. Traditional field surveys were mostly limited to transects or small plots, using limited sets of observations but with the decrease in the cost of close-range remote sensing technologies and the increase in computing performance, the microtopograph

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Haridas, Divya, and Vinay Gupta. "Enhanced response characteristics of SnO2-ZnO hetrostructures loaded with nanoscale catalyst clusters for methane gas detection." MRS Proceedings 1454 (2012): 227–32. http://dx.doi.org/10.1557/opl.2012.1444.

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ABSTRACTMethane is an important explosive gas, used extensively at the domestic and industrial sites. It is the main constituent of natural gas, which is the main fuel supplied to homes and industries including automobiles. Detection of trace level of methane gas is very important to avoid any accidental explosion due to its leakage and may cause loss of valuable human life and property. The present paper is focused on the development of new sensing material in the form of composites to improve sensitivity, selectivity and stability. Present work shows the enhanced response of SnO2-ZnO composi

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Zaworotko, Michael, and John Perry. "New platforms for gas separations and storage, chemical sensing, and catalysis." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1221. http://dx.doi.org/10.1107/s2053273314087786.

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"Over the past two decades Metal-Organic Materials (MOMs), as exemplified by porous coordination polymers, discrete metal-organic polyhedra and metal-organic frameworks, have experienced tremendous growth in both the number of research papers and their impact. MOMs are receiving such attention thanks to their modular nature which affords them the potential to offer game-changing solutions for several important technological problems. MOMs can exhibit permanent porosity and many of their most anticipated applications, such as gas storage (carbon dioxide sequestration, natural gas, and hydrogen

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Mironenko, Alexander Y., Alexander A. Sergeev, Sergey Voznesensky, and Svetlana Y. Bratskaya. "Thin Chitosan Films for Optical Gas Sensors." Key Engineering Materials 605 (April 2014): 536–39. http://dx.doi.org/10.4028/www.scientific.net/kem.605.536.

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Here we report on fabrication of integrated-optical sensors for relative humidity and ammonia detection based on natural polysaccharide chitosan. The sensing properties of the fabricated sensor to gaseous ammonia are presented. The sensor exhibits a linear response in the range of 1-300 ppm with the response time less than 1 second. It has been shown that 1 μm-thick chitosan-based waveguide film allows highly sensitive detection of RH level.

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Wright, Ruishu F., Ping Lu, Jagannath Devkota, Fei Lu, Margaret Ziomek-Moroz, and Paul R. Ohodnicki. "Corrosion Sensors for Structural Health Monitoring of Oil and Natural Gas Infrastructure: A Review." Sensors 19, no. 18 (2019): 3964. http://dx.doi.org/10.3390/s19183964.

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Corrosion has been a great concern in the oil and natural gas industry costing billions of dollars annually in the U.S. The ability to monitor corrosion online before structural integrity is compromised can have a significant impact on preventing catastrophic events resulting from corrosion. This article critically reviews conventional corrosion sensors and emerging sensor technologies in terms of sensing principles, sensor designs, advantages, and limitations. Conventional corrosion sensors encompass corrosion coupons, electrical resistance probes, electrochemical sensors, ultrasonic testing

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Ayerden, N. Pelin, and Reinoud F. Wolffenbuttel. "The Miniaturization of an Optical Absorption Spectrometer for Smart Sensing of Natural Gas." IEEE Transactions on Industrial Electronics 64, no. 12 (2017): 9666–74. http://dx.doi.org/10.1109/tie.2017.2719600.

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Pande, Shilpa A. "Green Synthesis of Biopolymer-Silver Nanocomposites for Gas Sensing." Advances in Science and Technology 99 (October 2016): 54–60. http://dx.doi.org/10.4028/www.scientific.net/ast.99.54.

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In this research work, a very simple, low cost eco-friendly method is presented for the synthesis of silver nanoparticles to be used in colorimetric optical sensors based on localized SPR (LSPR) measurement for gas ammonia. Silver nitrate salts are reduced using gaur gum which acts as a capping and reducing agent. Commonly used reducing agents such as trisodium citrate or sodium borohydride are replaced by a more environmental friendly natural polysaccharide. Nanocomposite films of ~ 1.5 μm thicknesses were fabricated using Gaur Gum and silver nanoparticles. The uniformity of nanoparticles siz

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Nursyahid, Annas, Ni Luh Wulan Septiani, and Angga Hermawan. "A Novel Palm Sugar-Mediated Hydrothermal Synthesis of Spherical Tin Oxide for Enhanced SO₂ Gas Detection." Journal of Physics: Conference Series 2705, no. 1 (2024): 012008. http://dx.doi.org/10.1088/1742-6596/2705/1/012008.

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Abstract Sulfur dioxide (SO2), a hazardous gas resulting from combustion and natural reactions, poses environmental and health risks. This study presents a novel approach to synthesize tin oxide (SnO2) using palm sugar-mediated hydrothermal methods for enhanced SO2 gas sensing. The simplicity and cost-effectiveness of the method are highlighted, addressing challenges posed by complex and resource-intensive conventional methods. Spherical SnO2 particles were successfully synthesized and characterized using SEM and XRD techniques. From the SEM image, it was known that SnO2 has spherical morpholo

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Agbi, Best Eromosele. "Metering of the Oil and Natural Gas System Emissions using Aerial Site Measurement." International Journal of Energy and Environmental Research 12, no. 1 (2024): 1–18. http://dx.doi.org/10.37745/ijeer.13/vol12n1118.

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Aerial methane surveys of oil and natural gas systems have discovered large emissions, which are missing or vastly undercounted in official estimates. We integrate approximately one million aerial site measurements into regional emissions inventories, employing empirically grounded emissions simulations to estimate small emissions. We infer emissions inventories for six regions in the United States comprising 52% of onshore oil and 29% of gas production over fifteen aerial campaigns. Total estimated emissions range from 9.63% [9.03%, 10.37%] of natural gas production, roughly nine times the US

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Potyrailo, R. A., J. Brewer, B. Cheng, M. A. Carpenter, N. Houlihan, and A. Kolmakov. "Bio-inspired gas sensing: boosting performance with sensor optimization guided by “machine learning”." Faraday Discussions 223 (2020): 161–82. http://dx.doi.org/10.1039/d0fd00035c.

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Ding, Yingyi, Ping Zhou, Tianli Han, and Jinyun Liu. "Environmentally Friendly and Cost-Effective Synthesis of Carbonaceous Particles for Preparing Hollow SnO2 Nanospheres and their Bifunctional Li-Storage and Gas-Sensing Properties." Crystals 10, no. 3 (2020): 231. http://dx.doi.org/10.3390/cryst10030231.

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The templated preparation of hollow nanomaterials has received broad attention. However, many templates are expansive, environmentally-harmful, along with involving a complicated preparation process. Herein, we present a cost-effective, environmentally friendly and simple approach for making carbonaceous particles which have been demonstrated as efficient templates for preparing hollow nanospheres. Natural biomass, such as wheat or corn, is used as the source only, and thus other chemicals are not needed. The carbonaceous particles possess abundant hydroxyl and carboxyl groups, enabling them t

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Ma, Pengfei, Ying Zhuo, Genda Chen, and Joel G. Burken. "Natural Gas Induced Vegetation Stress Identification and Discrimination from Hyperspectral Imaging for Pipeline Leakage Detection." Remote Sensing 16, no. 6 (2024): 1029. http://dx.doi.org/10.3390/rs16061029.

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Remote sensing detection of natural gas leaks remains challenging when using ground vegetation stress to detect underground pipeline leaks. Other natural stressors may co-present and complicate gas leak detection. This study explores the feasibility of identifying and distinguishing gas-induced stress from other natural stresses by analyzing the hyperspectral reflectance of vegetation. The effectiveness of this discrimination is assessed across three distinct spectral ranges (VNIR, SWIR, and Full spectra). Greenhouse experiments subjected three plant species to controlled environmental stresso

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Vasiliev, Alexey, Ilia Shakhnovich, Nikolay Samotaev, Daniil Anisimov, Jan Dziuban, and Pawel Knapkiewicz. "Intellectual Thermoconductometric Unit Based on Aerosol Printed Ceramic MEMS Sensor for the Measurement of Natural Gas Composition." Proceedings 2, no. 13 (2018): 736. http://dx.doi.org/10.3390/proceedings2130736.

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The online control of natural gas quality is important for customers, because for them the important value is calorific value of consumed gas, but not its volume. The application of thermoconductometric sensor gives simple possibility to fabricate imbedded intellectual plug-and-play device for this control. The ceramic MEMS sensor based on a combination of this ceramic LTCC membrane and aerosol jet printed platinum microheater was used as a sensing element of this unit. The electronic unit controlling the sensor was designed to stabilize the temperature of the microheater and to measure power

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Norizan, Mohd Nurazzi, Norli Abdullah, Norhana Abdul Halim, Siti Zulaikha Ngah Demon, and Imran Syakir Mohamad. "Heterojunctions of rGO/Metal Oxide Nanocomposites as Promising Gas-Sensing Materials—A Review." Nanomaterials 12, no. 13 (2022): 2278. http://dx.doi.org/10.3390/nano12132278.

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Monitoring environmental hazards and pollution control is vital for the detection of harmful toxic gases from industrial activities and natural processes in the environment, such as nitrogen dioxide (NO2), ammonia (NH3), hydrogen (H2), hydrogen sulfide (H2S), carbon dioxide (CO2), and sulfur dioxide (SO2). This is to ensure the preservation of public health and promote workplace safety. Graphene and its derivatives, especially reduced graphene oxide (rGO), have been designated as ideal materials in gas-sensing devices as their electronic properties highly influence the potential to adsorb spec

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Akbari-Saatlu, Mehdi, Masoumeh Heidari, Claes Mattsson, Renyun Zhang, and Göran Thungström. "Sub-Ppb H2S Sensing with Screen-Printed Porous ZnO/SnO2 Nanocomposite." Nanomaterials 14, no. 21 (2024): 1725. http://dx.doi.org/10.3390/nano14211725.

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Hydrogen sulfide (H2S) is a highly toxic and corrosive gas commonly found in industrial emissions and natural gas processing, posing serious risks to human health and environmental safety even at low concentrations. The early detection of H2S is therefore critical for preventing accidents and ensuring compliance with safety regulations. This study presents the development of porous ZnO/SnO2-nanocomposite gas sensors tailored for the ultrasensitive detection of H2S at sub-ppb levels. Utilizing a screen-printing method, we fabricated five different sensor compositions—ranging from pure SnO2 to p

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Gallegos, J. G., R. Benyon, S. Avila, et al. "An investigation of the comparative performance of diverse humidity sensing techniques in natural gas." Journal of Natural Gas Science and Engineering 23 (March 2015): 407–16. http://dx.doi.org/10.1016/j.jngse.2015.02.021.

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Zuo, Xiaoyang, Zhengyi Yang, Jing Kong, et al. "Imbedding Pd Nanoparticles into Porous In2O3 Structure for Enhanced Low-Concentration Methane Sensing." Sensors 23, no. 3 (2023): 1163. http://dx.doi.org/10.3390/s23031163.

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Methane (CH4), as the main component of natural gas and coal mine gas, is widely used in daily life and industrial processes and its leakage always causes undesirable misadventures. Thus, the rapid detection of low concentration methane is quite necessary. However, due to its robust chemical stability resulting from the strong tetrahedral-symmetry structure, the methane molecules are usually chemically inert to the sensing layers in detectors, making the rapid and efficient alert a big challenge. In this work, palladium nanoparticles (Pd NPs) embedded indium oxide porous hollow tubes (In2O3 PH

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Siti Amaniah Mohd Chachuli, M. Aliff Ikhwan Che Azman, Omer Coban, and Nur Hazahsha Shamsudin. "Methane Gas Sensor using Graphene Nanoflakes at Room Operating Temperature." Journal of Advanced Research in Micro and Nano Engineering 26, no. 1 (2024): 44–53. https://doi.org/10.37934/armne.26.1.4453.

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Methane gas is commonly produced and used in various industries, including agriculture, coal mining, manure management, landfills, natural gas, and petroleum systems. This gas is colorless and odorless. High concentrations of methane gas can have detrimental effects on human health, such as causing headaches, visual issues, and memory loss. Moreover, prolonged exposure to higher concentrations may lead to respiratory and heart rate fluctuations, balance problems, and even unconsciousness. In order to address these concerns, a thick film gas sensor based on graphene nanoflakes is proposed in th

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Iwaszenko, Sebastian, Piotr Kalisz, Marcin Słota, and Andrzej Rudzki. "Detection of Natural Gas Leakages Using a Laser-Based Methane Sensor and UAV." Remote Sensing 13, no. 3 (2021): 510. http://dx.doi.org/10.3390/rs13030510.

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The safety of the gas transmission infrastructure is one of the main concerns for infrastructure operating companies. Common gas pipelines’ tightness control is tedious and time-consuming. The development of new methods is highly desirable. This paper focuses on the applications of air-borne methods for inspections of the natural gas pipelines. The main goal of this study is to test an unmanned aerial vehicle (UAV), equipped with a remote sensing methane detector, for natural gas leak detection from the pipeline network. Many studies of the use of the UAV with laser detectors have been present

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Kausar, Ayesha, Ishaq Ahmad, Tingkai Zhao, Osamah Aldaghri, Khalid H. Ibnaouf, and M. H. Eisa. "Multifunctional Polymeric Nanocomposites for Sensing Applications—Design, Features, and Technical Advancements." Crystals 13, no. 7 (2023): 1144. http://dx.doi.org/10.3390/cryst13071144.

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Among nanocomposite materials, multifunctional polymer nanocomposites have prompted important innovations in the field of sensing technology. Polymer-based nanocomposites have been successfully utilized to design high-tech sensors. Thus, conductive, thermoplast, or elastomeric, as well as natural polymers have been applied. Carbon nanoparticles as well as inorganic nanoparticles, such as metal nanoparticles or metal oxides, have reinforced polymer matrices for sensor fabrication. The sensing features and performances rely on the interactions between the nanocomposites and analytes like gases,

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Yu, Yang, Xin Xin, Shanxiang Zhang, et al. "Silver-loaded carbon nanofibers for ammonia sensing." e-Polymers 20, no. 1 (2020): 606–12. http://dx.doi.org/10.1515/epoly-2020-0056.

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AbstractCarbon nanofibers (CNFs) were prepared by electrospinning, and silver (Ag) ions were grown on the surface of the CNFs by in situ solution synthesis. The structure and morphology of obtained Ag-doped CNFs (Ag-CNFs) were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The gas sensibility of the composite fiber was investigated by ammonia (NH3) obtained by natural volatilization from 1 to 4 mL of NH3 solution at room temperature. It was found that the fibers exhibited a sensitive current corresponding to different NH3 concentrations and a greater response

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Ольчев, Александр В., Вардуи Г. Маргарян та Армен М. Седракян. "КОНЦЕПЦИЯ КАРБОНОВЫХ ПОЛИГОНОВ И ПЕРСПЕКТИВЫ ИХ РАЗВИТИЯ В АРМЕНИИ". Proceedings of the YSU C: Geological and Geographical Sciences 57, № 3 (261) (2023): 248–54. http://dx.doi.org/10.46991/pysu:c.2023.57.3.248.

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A network of carbon polygons has been established in Russia to study the emission and uptake of greenhouse gases in natural ecosystems and to develop technological solutions to control the fluxes of greenhouse gases in natural ecosystems with the aim of reducing their emission and increasing their uptake from the atmosphere. The pilot project is an important part of the low-carbon development strategy to decarbonize the Russian economy, adapt the economy to the global energy transition, reduce greenhouse gas emissions and achieve carbon neutrality in Russia by 2060. To achieve these goals, the

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Galvani, Michele, Michele Zanotti, and Luigi Sangaletti. "(Invited) Functionalized Carbon Nanotube Arrays for Artificial Olfaction through e-Noses." ECS Meeting Abstracts MA2025-01, no. 12 (2025): 1015. https://doi.org/10.1149/ma2025-01121015mtgabs.

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Artificial olfaction mimics, to some extent, natural olfaction and stands as an emerging technology for monitoring volatile organic compounds, boosted by advances in statistical processing methods, which have made it possible to classify complex gas mixtures through sensor arrays operated as electronic noses (e-noses). Chemiresistor gas sensors based on carbon nanotubes (CNTs) display relevant features for the development of e-noses that can be engineered to meet the current societal needs in gas sensing, such as environmental monitoring, food and beverage quality assessment, and healthcare sc

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HUANG, Xiao-Wei, Jie-Wen ZHAO, Ji-Yong SHI, Lin HUANG, and Xiao-Bo ZOU. "Research on Discrimination of Dominant Spoilage Bacteria in Pork Based on Natural Gas-Sensing Material." CHINESE JOURNAL OF ANALYTICAL CHEMISTRY (CHINESE VERSION) 41, no. 3 (2014): 360–65. http://dx.doi.org/10.3724/sp.j.1096.2013.20679.

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Liu, Xiao-Long, Yang Zhao, Li Zhao, and Jun Zhuang. "Light-enhanced room-temperature gas sensing performance of femtosecond-laser structured silicon after natural aging." Optics Express 28, no. 5 (2020): 7237. http://dx.doi.org/10.1364/oe.377244.

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Zhang Shuai, Liu Wen-Qing, Zhang Yu-Jun, et al. "Research of quantitative remote sensing of natural gas pipeline leakage based on laser absorption spectroscopy." Acta Physica Sinica 61, no. 5 (2012): 050701. http://dx.doi.org/10.7498/aps.61.050701.

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张, 帅. "Research and Application of Locating Algorithm about La-ser Remote Sensing of Natural Gas Leakage." Applied Physics 01, no. 01 (2011): 1–8. http://dx.doi.org/10.12677/app.2011.11001.

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Halley, Sleight, Lok-kun Tsui, Kannan Ramaiyan, Kamil Agi, and Fernando H. Garzon. "Portable Mixed Potential Sensors for Natural Gas Emissions Monitoring." ECS Meeting Abstracts MA2022-02, no. 62 (2022): 2283. http://dx.doi.org/10.1149/ma2022-02622283mtgabs.

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The US Environmental Protection Agency has estimated that emissions from natural gas and petroleum systems account for 32% of methane emissions in the US.[1] Natural gas (NG) is transported along hundreds of thousands of miles of pipeline in the US, and any plan to perform continuous monitoring of NG systems for leak detection will require the development of low-cost, field-deployable systems. Mixed potential systems based on ceramic electrolytes and metal or metal-oxide electrodes are expected to be capable of resolving CH4, C2H6 and other sub-components of natural gas mixtures and interferen

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He, Jiaqing, Nicolò Simone Villa, Zhen Luo, et al. "Integrating plasmonic nanostructures with natural photonic architectures in Pd-modified Morpho butterfly wings for sensitive hydrogen gas sensing." RSC Advances 8, no. 57 (2018): 32395–400. http://dx.doi.org/10.1039/c8ra05046e.

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Stajanca, Pavol, Sebastian Chruscicki, Tobias Homann, Stefan Seifert, Dirk Schmidt, and Abdelkarim Habib. "Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic Sensing." Sensors 18, no. 9 (2018): 2841. http://dx.doi.org/10.3390/s18092841.

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In the presented work, the potential of fiber-optic distributed acoustic sensing (DAS) for detection of small gas pipeline leaks (<1%) is investigated. Helical wrapping of the sensing fiber directly around the pipeline is used to increase the system sensitivity for detection of weak leak-induced vibrations. DAS measurements are supplemented with reference accelerometer data to facilitate analysis and interpretation of recorded vibration signals. The results reveal that a DAS system using direct fiber application approach is capable of detecting pipeline natural vibrations excited by the bro

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Yao, Yating, Yupeng Xing, Ziteng Zuo, Chihang Wei, and Weiming Shao. "Virtual Sensing of Key Variables in the Hydrogen Production Process: A Comparative Study of Data-Driven Models." Sensors 24, no. 10 (2024): 3143. http://dx.doi.org/10.3390/s24103143.

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Hydrogen is an ideal energy carrier manufactured mainly by the natural gas steam reforming hydrogen production process. The concentrations of CH4, CO, CO2, and H2 in this process are key variables related to product quality, which thus need to be controlled accurately in real-time. However, conventional measurement methods for these concentrations suffer from significant delays or huge acquisition and upkeep costs. Virtual sensors effectively compensate for these shortcomings. Unfortunately, previously developed virtual sensors have not fully considered the complex characteristics of the hydro

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Wang, Shu Tao, Peng Wei Zhang, and Quan Min Zhu. "Novel Fiber-Optic Sensing System for Detection of Methane." Key Engineering Materials 562-565 (July 2013): 1008–15. http://dx.doi.org/10.4028/www.scientific.net/kem.562-565.1008.

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Based on DFBLD (Distributed Feedback Laser Diode) and harmonic detection technique, a novel fiber-optic methane detection system is constructed. The system can be applied to broad-range concentration detection of methane. Based on the approximation express of the law of Beer-Lambert, detection of methane with various concentration from 0% to 20% is completed using subtraction of background and ratio processing method, as the atmosphere surroundings are treated as background noise. The direct absorption spectra for various concentration is measured using GRIN gas cell, combined with DFBLD. The

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Kuchin, Leonid S. "MULTISPECTRAL SURVEY OF HYDROCARBONS NATURAL AND MAN-MADE ACCUMULATION AREAS USING AN UNMANNED AERIAL VEHICLE." Географический вестник = Geographical bulletin, no. 1 (2025): 160–73. https://doi.org/10.17072/2079-7877-2025-1-160-173.

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The research area is located on the site of a gas and oil field in the upper reaches of the Yasyl River. Dueto the spread of karst processes in the studied area, natural and man-made accumulations of hydrocarbons are formed.There is ongoing work done to identify oilfield technogenesis by remote sensing methods. Based on the data of a gasgeochemical survey, maps of the distribution of subhumus horizon gases (methane, carbon dioxide, volatile organic compounds, and C1-C5 hydrocarbon gases) were constructed. The most common are gas-geochemical anomalies associated with hydrocarbon gases. All anom

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Wei, Huijie, Huiyan Zhang, Bing Song, et al. "Metal–Organic Framework (MOF) Derivatives as Promising Chemiresistive Gas Sensing Materials: A Review." International Journal of Environmental Research and Public Health 20, no. 5 (2023): 4388. http://dx.doi.org/10.3390/ijerph20054388.

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The emission of harmful gases has seriously exceeded relative standards with the rapid development of modern industry, which has shown various negative impacts on human health and the natural environment. Recently, metal–organic frameworks (MOFs)-based materials have been widely used as chemiresistive gas sensing materials for the sensitive detection and monitoring of harmful gases such as NOx, H2S, and many volatile organic compounds (VOCs). In particular, the derivatives of MOFs, which are usually semiconducting metal oxides and oxide–carbon composites, hold great potential to prompt the sur

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Omara, Mark, Ritesh Gautam, Madeleine A. O'Brien, et al. "Developing a spatially explicit global oil and gas infrastructure database for characterizing methane emission sources at high resolution." Earth System Science Data 15, no. 8 (2023): 3761–90. http://dx.doi.org/10.5194/essd-15-3761-2023.

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Abstract. Reducing oil and gas methane emissions is crucially important for limiting the rate of human-induced climate warming. As the capacity of multi-scale measurements of global oil and gas methane emissions has advanced in recent years, including the emerging ecosystem of satellite and airborne remote sensing platforms, a clear need for an openly accessible and regularly updated global inventory of oil and gas infrastructure has emerged as an important tool for characterizing and tracking methane emission sources. In this study, we develop a spatially explicit database of global oil and g

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Mallik, Avijit, Sharif Ahmed, G. M. M. Hossain, and M. R. Rahman. "IoT Utilized Gas-Leakage Monitoring System with Adaptive Controls Applicable to Dual Fuel Powered Naval Vessels/Ships: Development & Implementation." Cybernetics and Information Technologies 20, no. 1 (2020): 138–55. http://dx.doi.org/10.2478/cait-2020-0010.

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AbstractLeakage of Liquefied Petroleum Gas and Liquified Natural Gas (LPG/LNG) produces hazardous and toxic impact on humans and other living creatures. The authors developed a system to monitor and control the gas leakage concentration. MQ-6 gas sensor is used for sensing the level of gas concentration in a closed volume. To monitor the consequences of environmental changes an IoT platform hosted by “Thingspeak” platform has been introduced. Both robust and cloud-forwarded controls have been applied to prevent uncontrolled leakage of those gases and auto-ignition. This type of system can be d

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