Relevant bibliographies by topics / H2S Gas Sensor

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'H2S Gas Sensor'

Author: Grafiati
Published: 3 June 2025
Last updated: 19 July 2025

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Journal articles on the topic "H2S Gas Sensor"

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Cui, Xiaosen, Zhaorui Lu, Zhongchang Wang, Wen Zeng, and Qu Zhou. "Highly Sensitive SF6 Decomposition Byproducts Sensing Platform Based on CuO/ZnO Heterojunction Nanofibers." Chemosensors 11, no. 1 (2023): 58. http://dx.doi.org/10.3390/chemosensors11010058.

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Hydrogen sulfide (H2S) and sulfur dioxide (SO2) are two typical decomposition byproducts of sulfur hexafluoride (SF6), commonly used as an insulating medium in electrical equipment; for instance, in gas circuit breakers and gas insulated switchgears. In our work, fiber-like p-CuO/n-ZnO heterojunction gas sensing materials were successfully prepared via the electrospinning method to detect the SF6 decomposition byproducts, H2S and SO2 gases. The sensing results demonstrated that p-CuO/n-ZnO nanofiber sensors have good sensing performance with respect to H2S and SO2. It is noteworthy that this f
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Wei, Qinghua, Li Liu, and Chuansheng Wu. "A Novel Net Like Structure Sensor and Gas Detection Performance in Tunnel Construction." Journal of Nanoelectronics and Optoelectronics 15, no. 1 (2020): 54–58. http://dx.doi.org/10.1166/jno.2020.2736.

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In this work, novel multiporous net-like WO3 · H2O nanostructures were successfully obtained by changing the cations in a hydrothermal reaction system. The gas-sensing performance was measured by a static system. The experimental results showed that this net-like WO3 · H2O nanostructure-based sensor exhibited an enhanced response to H2S compared with that of normal WO3 · H2O nanorods. The causes of this phenomenon are discussed in detail from the two perspectives of electron transfer and gas-sensing reaction processes. We believe that this work also indicate that the net like structure is hope
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Kwon, JinBeom, Daewoong Jung, Yuntae Ha, et al. "High-Sensitivity Hydrogen Sulfide Electrochemical Gas Sensor Based on CNT/Pt Cluster Electrode." ECS Meeting Abstracts MA2023-02, no. 62 (2023): 2949. http://dx.doi.org/10.1149/ma2023-02622949mtgabs.

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Recently, due to the development of industrial technology, harmful gases discharged from industrial sites are gradually increasing, and as a result, inconvenience and civil complaints due to odor in the community are rapidly increasing. Among several types of harmful gases, hydrogen sulfide (H2S) is a colorless representative harmful gas that can cause pain through irritation of the mucous membranes of the eyes and respiratory tract, and can cause central nerve paralysis and suffocation at the same time when exposed to high concentrations. In addition, H2S is not only harmful to the human body
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Ao, Dongyi, Zhijie Li, Yongqing Fu, Yongliang Tang, Shengnan Yan, and Xiaotao Zu. "Heterostructured NiO/ZnO Nanorod Arrays with Significantly Enhanced H2S Sensing Performance." Nanomaterials 9, no. 6 (2019): 900. http://dx.doi.org/10.3390/nano9060900.

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H2S gas sensors were fabricated using p-n heterojunctions of NiO/ZnO, in which the ZnO nanorod arrays were wrapped with NiO nanosheets via a hydrothermal synthesis method. When the H2S gas molecules were adsorbed and then oxidized on the ZnO surfaces, the free electrons were released. The increase in the electron concentration on the ZnO boosts the transport speed of the electrons on both sides of the NiO/ZnO p-n junction, which significantly improved the sensing performance and selectivity for H2S detection, if compared with sensors using the pure ZnO nanorod arrays. The response to 20 ppm of
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Sadaf, Shama, Hongpeng Zhang, and Ali Akhtar. "H2S/Butane Dual Gas Sensing Based on a Hydrothermally Synthesized MXene Ti3C2Tx/NiCo2O4 Nanocomposite." Molecules 29, no. 1 (2023): 202. http://dx.doi.org/10.3390/molecules29010202.

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Real-time sensing of hydrogen sulfide (H2S) at room temperature is important to ensure the safety of humans and the environment. Four kinds of different nanocomposites, such as MXene Ti3C2Tx, Ti3AlC2, WS2, and MoSe2/NiCo2O4, were synthesized using the hydrothermal method in this paper. Initially, the intrinsic properties of the synthesized nanocomposites were studied using different techniques. P-type butane and H2S-sensing behaviors of nanocomposites were performed and analyzed deeply. Four sensor sheets were fabricated using a spin-coating method. The gas sensor was distinctly part of the ch
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Fan, Chao, Fazhe Sun, Xiaomei Wang, et al. "Synthesis of ZnO Hierarchical Structures and Their Gas Sensing Properties." Nanomaterials 9, no. 9 (2019): 1277. http://dx.doi.org/10.3390/nano9091277.

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Firecracker-like ZnO hierarchical structures (ZnO HS1) were synthesized by combining electrospinning with hydrothermal methods. Flower-like ZnO hierarchical structures (ZnO HS2) were prepared by a hydrothermal method using ultrasound-treated ZnO nanofibers (ZnO NFs) as raw material which has rarely been reported in previous papers. Scanning electron microscope (SEM) and transmission electron microscope’s (TEM) images clearly indicated the existence of nanoparticles on the ZnO HS2 material. Both gas sensors exhibited high selectivity toward H2S gas over various other gases at 180 °C. The ZnO HS
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Yu, Ziyang, Jie Gao, Longxiao Xu, et al. "Fabrication of Lettuce-Like ZnO Gas Sensor with Enhanced H2S Gas Sensitivity." Crystals 10, no. 3 (2020): 145. http://dx.doi.org/10.3390/cryst10030145.

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In this work, a lettuce-like ZnO gas sensor with high sensitivity for H2S detection was successfully fabricated by a one-step hydrothermal method. Characterization analysis of the phases, crystallinities, morphology, and chemical compositions indicated that lettuce-like ZnO has a lettuce-like microsphere structure composed of wurtzite hexagonal ZnO sheets. A gas sensitivity test of the lettuce-like ZnO showed that the sensor had a high H2S response (113.04 for 100 ppm H2S) and H2S selectivity. The lettuce-like ZnO sensor has fast response characteristics while maintaining high sensitivity, and
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AlTakroori, Husam H. D., Ashraf Ali, Yaser E. Greish, Naser Qamhieh, and Saleh T. Mahmoud. "Organic/Inorganic-Based Flexible Membrane for a Room-Temperature Electronic Gas Sensor." Nanomaterials 12, no. 12 (2022): 2037. http://dx.doi.org/10.3390/nano12122037.

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A room temperature (RT) H2S gas sensor based on organic–inorganic nanocomposites has been developed by incorporating zinc oxide (ZnO) nanoparticles (NPs) into a conductivity-controlled organic polymer matrix. A homogeneous solution containing poly (vinyl alcohol) (PVA) and ionic liquid (IL) and further doped with ZnO NPs was used for the fabrication of a flexible membrane (approx. 200 μm in thickness). The sensor was assessed for its performance against hazardous gases at RT (23 °C). The obtained sensor exhibited good sensitivity, with a detection limit of 15 ppm, and a fast time response (24
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Kamlangkla, Kanchit, Aphichard Phongphala, and Udomdej Pakdee. "Adsorption of Hydrogen Sulfide on Reduced Graphene Oxide-Wrapped Titanium Dioxide Nanofibers." Adsorption Science & Technology 2023 (September 28, 2023): 1–13. http://dx.doi.org/10.1155/2023/5570029.

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This work presents a fabrication of room-temperature gas sensor for hydrogen sulfide (H2S) adsorption. Pristine titanium dioxide (TiO2) nanofibers, reduced graphene oxide (rGO) sheets, and reduced graphene oxide-wrapped titanium dioxide (rGO-wrapped TiO2) nanofibers were presented in the form of integrated suspension used for a gas-sensing layer. The TiO2 nanofibers were firstly synthesized by using an electrospinning method with a polyvinylpyrrolidone (PVP) polymer. The rGO sheets were then wrapped around TiO2 nanofibers by a hydrothermal method. Scanning electron microscope, transmission ele
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Torres, Ingrid, Sadegh Mehdi Aghaei, Amin Rabiei Baboukani, Chunlei Wang, and Shekhar Bhansali. "Individual Gas Molecules Detection Using Zinc Oxide–Graphene Hybrid Nanosensor: A DFT Study." C 4, no. 3 (2018): 44. http://dx.doi.org/10.3390/c4030044.

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Surface modification is a reliable method to enhance the sensing properties of pristine graphene by increasing active sites on its surface. Herein, we investigate the interactions of the gas molecules such as NH3, NO, NO2, H2O, and H2S with a zinc oxide (ZnO)–graphene hybrid nanostructure. Using first-principles density functional theory (DFT), the effects of gas adsorption on the electronic and transport properties of the sensor are examined. The computations show that the sensitivity of the pristine graphene to the above gas molecules is considerably improved after hybridization with zinc ox
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Dissertations / Theses on the topic "H2S Gas Sensor"

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Darmastuti, Zhafira. "SiC-FET Gas Sensors Developed for Control of the Flue Gas Desulfurization System in Power Plants Experimental and Modeling : Experimental and Modeling." Doctoral thesis, Linköpings universitet, Tillämpad sensorvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106224.

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Electricity and power generation is an essential part of our life. However, powergeneration activities also create by-products (such as sulphur oxides, nitrogen oxides,carbon monoxide, etc), which can be dangerous when released to the atmosphere.Sensors, as part of the control system, play very vital role for the fluegas cleaning processes in power plants. This thesis concerns the development ofSilicon Carbide Field Effect Transistor (SiC-FET) gas sensors as sensors for sulfurcontaining gases (SO2 and H2S) used as part of the environmental control systemin power plants. The works includes sens
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LUCCI, MASSIMILIANO. "Gas sensor based on single wall carbon nanotubes." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2008. http://hdl.handle.net/2108/601.

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Single-walled carbon nanotubes (SWNTs) are nowadays one of the most investigated materials and the realization of ordered SWNT structures is of fundamental importance for the improvement of many technological fields, from the non-linear optics to the realization of transistor, to the assembly of gas sensing devices. A SWNT is formed by rolling a graphene sheet into a seamless cylinder with a diameter on the nanometer scale. The individual SWNTs are joined each other and assembled into bundles by Van der Waals forces. Guest molecules can potentially interact with SWNTs via the outer surfac
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Hetznecker, Alexander. "Untersuchung der gassensitiven Eigenschaften von SnO2/NASICON-Kompositen." Doctoral thesis, [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975219723.

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Peng, Yu-Ting, and 彭鈺婷. "Fabrication of a room-temperature H2S gas sensor based on PPy/WO3 nanocomposite films by in-situ photopolymerization method." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/81071269906348151957.

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碩士<br>中國文化大學<br>化學系應用化學碩士班<br>101<br>A room-temperature H2S gas sensor was fabricated through in-situ photopolymerization of polypyrrole (PPy) and tungsten oxide (WO3) nanoparticles (PPy/WO3) nanocomposite thin film on an alumina substrate. X-ray diffractometry (XRD) and scanning electron microscopy (SEM) were used to analyze the structure and morphology of the fabricated films. Comparative gas sensing results indicated that the sensor that was based on the PPy/WO3 nanocomposite film exhibited a much higher sensitivity than that based on pure WO3 or PPy film in detecting H2S gas at room temper
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Chiang, Yi-Hung, and 江奕鋐. "Ab initio Study of Work Function Change Induced by NO2 and H2S Molecules on ZnGa2O4(111) Surfaces for Gas Sensors." Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107NCHU5693033%22.&searchmode=basic.

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碩士<br>國立中興大學<br>精密工程學系所<br>107<br>The work function of the interface of Ga-Zn-O in ZnGa2O4(111) has been calculated by using the density functional theory (DFT) in this work. The effect from both molecule NO2 and H2S with different structure and concentration on the work function of Ga-Zn-O has been clearly revealed. The result indicates that ob the highest work function change observed at the Ga3c in the interface Ga-Zn-O in ZnGa2O4(111) as absorbed by the nitrogen atom from a single NO2 molecule could reach +0.97 eV. In the case where the Ga3c of Ga-Zn-O is absorbed by the sulfur atom from a
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Books on the topic "H2S Gas Sensor"

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Wu, Quan. Development of a sensor to measure CO, H2O concentrations and gas temperature using a 1.56 [mu]m tunable diode laser. National Library of Canada, 2003.

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Panigrahi, Muktikanta, and Arpan Kumar Nayak. Polyaniline based Composite for Gas Sensors. IOR PRESS, 2021. http://dx.doi.org/10.34256/ioriip212.

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In this research work, we have demonstrated the synthesis, spectroscopic characteristics, thermal behaviour and DC conductivity of a few nanostructured composites, substituted conducting polymers (ICPs) and composites of ICPs. The physical properties of aforementioned composites are significantly changed by the doping with HCl, H2SO4, HNO3, H3PO4, or acrylic acid. The charge transport properties of these polymeric materials have been studied in detail because of their potential application in gas sensors. In the current work, varieties of conducting polymer based materials such as PANI-ES/Cloi
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Mondal, Paritosh, Saurav Paul, Abhijit Shyam, et al. Chemisensors and Biosensors. Edited by Sunayana Goswami. Glasstree, 2020. http://dx.doi.org/10.20850/9781716626982.

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The world of sensor is an important and fast growing industry. Backed by active groups of researchers and technologists round the globe, sensor technology has become indispensible for its applications in the different field especially in the segment of environmental monitoring, gas composition analysis, industrial development monitoring, national defence security and medicine etc. Naturally, it plays a crucial role in the environment monitoring sector as well. This book documents an overview of different chemi- and bio-sensors, their design aspects, prospect of computational molecular studies
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Hammond, James W. Poison Gas. Praeger, 1999. http://dx.doi.org/10.5040/9798400697593.

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The threat of poison gas, and other related biological warfare agents, holds our society hostage to the possible actions of terrorist groups or rogue states. This study hopes to convince policymakers and the general public that the bad reputation that surrounds the use of gas is largely the result of propaganda, misinformation, and oft-repeated half-truths. With proper precautions and discipline, neither the military nor society need fear gas as a weapon of mass destruction, wielded by dictators and cowards who utilize the loopholes in international agreements and flaunt world opinion. While n
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Slusser, George. Benford in His Own Words. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252038228.003.0003.

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This chapter considers the series of essays Gregory Benford wrote for University of California Riverside's Eaton Conference from 1979 to 2009. It explores Benford's personal vision by connecting the various threads of his essays, including his analysis of J. G. Ballard's term of “experience” from the point of view of the “intuitionist” school of natural philosophy; the process of alien ingestion; the narrative and rhetorical devices needed to achieve what he calls that “falsely quiet” moment when the practicing scientist senses the possibility of alien encounter; the role of aliens in science
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de Vignemont, Frédérique. A Multimodal Account of Bodily Experience. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198735885.003.0007.

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What are the implications of pervasive presence of multisensory interactions for bodily awareness? It has been assumed that bodily experiences exclusively result from bodily senses, with no influence from external senses, but vision is actually required to maximize the veridical perception of the body. Consequently, bodily experiences in those who have never seen are of a different kind to the way one normally experiences one’s body. Whether or not one is currently seeing one’s body, vision plays an essential role in delineating the boundaries of the body, in locating our body parts in space a
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Nyman, Jonna. ‘Common Sense’ Energy Security in China. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198820444.003.0005.

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Chapter 5 provides another analysis of common sense energy security practices that cause insecurity, this time in China. The chapter provides some historical context on energy in China and policy-making procedures, and then looks directly at how energy security (nengyuan anquan) has been practised in Chinese energy security policy since 2004. It examines how energy security was constructed in official discourse in the same time period, drawing out key themes. It notes the ways in which these practices interact to create an accepted ‘common sense’ notion of energy security, where self-sufficien
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Kantor, Martin. Now That You’re Out. ABC-CLIO, LLC, 2011. http://dx.doi.org/10.5040/9798400692352.

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This book is an invaluable resource manual and survival guide for gay men who often turn to peers, parents, educators, or the media for direction, only to encounter misleading myths about gay life, such as the notion that "coming out solves everything. For some gay men being homosexual is often anything but "gay." What are typically assumed to be "gay attributes" are often not characteristics of being gay but symptoms of common emotional disorders in gay men. In this insightful book, longtime psychiatrist Martin Kantor—who is himself a gay man and has been in a committed relationship for 27 ye
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Duvernoy, Sophie, Karsten Olson, and Ulrich Plass, eds. Representing Social Precarity in German Literature and Film. Bloomsbury Publishing Inc, 2023. http://dx.doi.org/10.5040/9781501391507.

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Since 2000, much attention has been paid to the increase in social precarity in Europe and the US. Phenomena of precarization (such as underemployment, indebtedness, deaths of despair) tend to be causally linked to the rise of neoliberalism as a strategy of governance that redistributes risk to the already vulnerable. Representing Social Precarity in German Literature and Film broadens the scope beyond this narrow definition of precarity, using Germany as a national case study, to examine the historical genesis of precarity, its evolution from 19th-century industrial modernity to the present,
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Gaos, José. My Two Cents. Translated by Robert Eli Sanchez and Aurelia Valero Pie. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190601294.003.0009.

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In this selection, José Gaos considers the perspectivism of his teacher, José Ortega y Gasset, who famously argued that “I am myself and my circumstance, and if I do not save my circumstance, I do not save myself.” For Gaos, and eventually for Samuel Ramos, this view provided the epistemological justification for a national or continental philosophy—“American philosophy”— insofar as it helped to explain how philosophy could be both universal (concerned with the universe) and circumstantial. Philosophy for Gaos is universal in that it is philosophy sín más (as such), which cannot but acquire a
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Book chapters on the topic "H2S Gas Sensor"

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Ma, Qiuxia, and Junhui Hu. "Synthesis and Characterization of Porous NiCo-LDH Nanosheets for Room-Temperature H2S Gas Sensor." In Advances in Automation, Mechanical and Design Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-62664-7_40.

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Se, Haifeng, Jinhai Jiang, Chuanyu Sun, and Kai Song. "Hydrogen Leakage Detection in Confined Spaces with Drift Suppression Based on Subspace Alignment." In Proceedings of the 10th Hydrogen Technology Convention, Volume 1. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8631-6_20.

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AbstractGas sensor has been widely used in flammable gas detection. In order to solve the problem that gas sensors are susceptible to drift in hydrogen leakage detection in confined spaces, a drift compensation framework based on subspace alignment is proposed. First, global domains and subdomains are aligned simultaneously in the new subspace, thus reducing the distribution difference between the source domain and the target domain. Then, the proposed method utilizes extreme learning machine (ELM) to iteratively refine the prediction results of the target domain, and continuously optimizes the subspace and classifier. In this way, the proposed method realizes drift compensation at the feature level. Compared with the existing methods, the proposed method achieves the highest accuracy of 79.83% in the long-term drift scenario. Therefore, the experimental results show that the proposed method is competent for hydrogen leakage detection with drift, and can provide a reference for the design of drift compensation method based on gas sensors.
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Ramgir, Niranjan, Ankita Pathak, K. R. Sinju, Bhagyashri Bhangare, A. K. Debnath, and K. P. Muthe. "Chemiresistive Sensors for H2S Gas: State of the Art." In Recent Advances in Thin Films. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6116-0_19.

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Terasa, Maik-Ivo, Leonard Siebert, Pia Holtz, et al. "Smart Sensor Arrays." In Springer Series on Bio- and Neurosystems. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-36705-2_11.

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AbstractSensors play a crucial role in our everyday life and will become more and more demanded with the transition towards smart cities and the “Internet of Things” with the result of an ever-increasing energy demand. Thus, the research of improving the energy efficiency of sensor systems has started to move towards edge computing and neuromorphic engineering while at the same time additive manufacturing has gained increasing attention as a means for a rapid, scalable fabrication of functional devices yet with huge design freedom and quick iteration cycles during the development phase. In this chapter the junction of pre-designed components with self-organizing material systems for the facile fabrication of sensor devices via direct ink writing is demonstrated. As examples 3D-printed CuO/Cu2O/Cu- and CuO/Fe2O3 acetone gas sensors are shown, as well as how the decoration of metal-oxide semiconducting sensor materials with noble metallic nanoparticles can enhance the sensor properties with respect to sensitivity, selectivity and stability. Finally, the assembly of conductive bridges between electrodes stimulated by voltage pulses is introduced as an approach towards facilitating the self-organization of neuromorphic circuits.
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Jiang, Zhijian. "Research on the Application of Internet of Things Technology in Power Grid Limited Space Security Monitoring." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-2409-6_8.

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Abstract The goal of this paper is to study the practical application of Internet of Things technology in the safety supervision of specific areas of the power grid, so as to optimize the safety management process of the power grid and improve its management efficiency and accuracy. For the major components of power facilities including cable tunnels, substations, cable trenches, temperature, humidity, and gas sensors are installed. These sensors use wireless sensor network technology to send data to the next level, and then the data is sent to the big data analysis for further analysis and monitoring. The findings of the study indicate that the sensor network can monitor important environmental information in real time, with the data transmission rate of 250 kilobits per second and the probability of data loss of less than 0. 1%. This monitoring system can give an alarm 5 to 10 min before the fault is likely to happen with an accuracy of more than 95%. By using accurate measurement instruments and a big data processing center, the system has made some remarkable outcomes in the improvement of the power grid stability and security.
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Lallement, Jeanne, Florence de Ferran, and Sarah Machat. "How the Sensoriality of Experience Contributes to Behavior Change: The Case of Daily Mobility." In Lecture Notes in Mobility. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-85578-8_1.

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Abstract The transport sector accounts for a third of greenhouse gas emissions, and over half of these are generated by households. How can we effectively leverage a change towards less carbon-intensive mobility? Motivations for modal choice have been studied by various disciplines, and there is a consensus that the determinants are essentially rational and cognitive. However, research over the past thirty years has demonstrated the effectiveness of sensory triggers. The present study, in the field of sensory marketing, focuses on the complex experience of mobility change, notably the consumer’s senses. We adopt a qualitative, exploratory approach. Two series of interviews were carried out with 18 people who had recently changed their means of mobility. Considering the user as a meaning-producing actor, the present study examines both individual and contextual motivations, and socio-cultural, experiential, and symbolic aspects of mobility. We analyze the corpus of verbatim from the perspective of the framework developed by Krishna, and highlight both the multiple sensory characteristics of the new mobility experience, and their consequences on attitudes and behaviors. Attitude, memory, and behavior are affected by both grounded cognition and grounded emotion. Our results have implications for policies that encourage people to test soft mobility options.
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Mimra, Christopher, Boris Eisenbart, Stefan Carosella, and Peter Middendorf. "Combination of the Scanning and the Polar Measuring Method for the Defect Detection in Dry Fibre Layups Using an Eddy Current Sensor." In Advances in Automotive Production Technology – Towards Software-Defined Manufacturing and Resilient Supply Chains. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27933-1_23.

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AbstractGaps, fibre misalignment and foreign objects in dry fibre tape layups are detrimental towards the final mechanical properties of carbon fibre composite parts. Eddy current sensors can be used to inspect layups for the named defects. In comparison to optical inspection methods, eddy current measurements are capable of inspecting not only the top layer but multiple plies at once. In the literature, two different methods have been proposed for this inspection. One is the scanning method, where the sensor is moved over the specimen and creates a grey-scale image. The pixel brightness correlates with the layup’s local electrical conductivity. The other method for the local inspection is the polar method, where the sensor is rotated on a single spot to detect the fibre orientation. In this work, both methods were conducted with the same inspection system, which is based on a collaborative robotic arm. It has been shown that the scanning method can identify gaps and foreign objects out of metal. The fibre orientation can be identified by the rotational method with a precision of 0.16$$^{\circ }$$ ∘ . The exact positioning of the probe remains the main challenge for this inspection system. However, a combination of both methods promises to provide a reliable inspection method for the most common defect in a dry fibre layup.
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Pálhalmi, János, and Anna Mező. "AI-Powered Microscopy Platform for Airborne Biothreat Detection." In Security Informatics and Law Enforcement. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-62083-6_10.

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AbstractBecause Bacillus anthracis is one of the most lethal bioweapons, it is critical to create rapid, label-free screening and early warning systems to detect and classify anomalies in bacillus form vegetative cell and spore concentrations in the air. Even though significant effort has been invested in the development of various sensor solutions to detect, monitor, and identify airborne biological agents, no standard, interoperable, real-time or near-real-time optical sensor-based biothreat monitoring solution exists. Aside from the numerous advantages of genomic methods in microbe identification, optical sensors and microscopy-based technologies provide advantages in terms of rapid detection and classification capabilities. The AI-powered biothreat detection software platform from DataSenseLabs can perform intermethod comparison to cross-validate the results acquired by various quantitative phase imaging (QPI) measurement methodologies. This platform feature—support for multisensory data input—is not merely the foundation of the R&amp;D level cross-validation approach, but also the key component of interoperable verification of air sample content in the case of airborne biothreat. Depending on the study design, sample type, and light microscopic or QPI measurement method, the platform’s algorithm system can detect and monitor abnormalities in the concentration of bacillus form objects taken from the air with greater than 80–95% accuracy. Another goal of the platform is to serve as a standardized tool for biomedical, environmental, and CBRN scientists to train and validate their concepts in pathogen detection and classification use cases, allowing them to better understand the gaps and challenges associated with artificial intelligence-powered optical sensor systems.
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Torresan, Chiara, Sebastiaan Luyssaert, Gianluca Filippa, Mohammad Imangholiloo, and Rachel Gaulton. "Remote Sensing Technologies for Assessing Climate-Smart Criteria in Mountain Forests." In Climate-Smart Forestry in Mountain Regions. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80767-2_11.

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AbstractMonitoring forest responses to climate-smart forestry (CSF) is necessary to determine whether forest management is on track to contribute to the reduction and/or removal of greenhouse gas emissions and the development of resilient mountain forests. A set of indicators to assess “the smartness” of forests has been previously identified by combining indicators for sustainable forest management with the ecosystem services. Here, we discuss the remote sensing technologies suitable to assess those indicators grouped in forest resources, health and vitality, productivity, biological diversity, and protective functions criteria. Forest cover, growing stock, abiotic, biotic, and human-induced forest damage, and tree composition indicators can be readily assessed by using established remote sensing techniques. The emerging areas of phenotyping will help track genetic resource indicators. No single existing sensor or platform is sufficient on its own to assess all the individual CSF indicators, due to the need to balance fine-scale monitoring and satisfactory coverage at broad scales. The challenge of being successful in assessing the largest number and type of indicators (e.g., soil conditions) is likely to be best tackled through multimode and multifunctional sensors, increasingly coupled with new computational and analytical approaches, such as cloud computing, machine learning, and deep learning.
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Wörner, Daniel, Lukas Budde, and Thomas Friedli. "Towards Circular Business Models in the Punching Industry: Leveraging Smart Sensor Technology for Sustainable Manufacturing Processes." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-77429-4_7.

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AbstractThe punching industry (PI) remains largely dependent on unsustainable resource use in its manufacturing process, consuming finite materials. Evolving market needs for increased environmental sustainability in the PI causes punching companies to reevaluate their existing manufacturing processes. Considering this trend, this research explores the prerequisites for transitioning to circular business models (CBMs), a subset of sustainable business models, by using smart sensor technology (SST) supporting a sustainable manufacturing process (SMP). Prior research has shown that using different sensors pertaining punching tools and machines is prevalent. Standard parts in the punching tool itself address these challenges of an imprecise set-up of the punching tool on the punching machine resulting in process improvements and efficiency enhancements. Yet, no similar data-driven punching tool concepts have been installed highlighting the novelty. To address this gap, this study examines how data can be gathered and successfully utilized to support SMP fostering CBMs in the PI based on data-driven punching tools. Mixed methods are applied in a practice oriented project, involving a Swiss-based manufacturer. The results demonstrate several key drivers supporting SMPs enabled by data-driven punching tools. Future research should involve a larger number of interviews and further field testing to increase maturing SST data-driven punching tools.
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Conference papers on the topic "H2S Gas Sensor"

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Wright, Ruishu F., Paul R. Ohodnicki, and Margaret Ziomek-Moroz. "Fe Thin Film Coated Optics for Monitoring Internal Corrosion in Natural Gas Pipelines." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-10893.

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Abstract Internal corrosion can occur in the natural gas transmission pipelines when aqueous electrolytes are present. The presence of water results from the condensation of wet gas or liquid water from upstream plant upsets. Dissolved contaminants such as salts, CO2, and H2S make the electrolyte more corrosive. The ability to monitor internal corrosion in natural gas transmission pipelines before it occurs could have a significant impact on preventing methane leaks as well as catastrophic events resulting from corrosion. A recent concept for early corrosion on-set detection involves the use o
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Yang, Lietai, Xiaodong Sun, and Ronald Barnes. "Coupled Multielectrode Array Sensors with Solid Electrolyte-Coated Finger-Like Electrodes for Applications in Oil-Water Mixtures and Natural Gas Systems Containing Hydrogen Sulfide." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4406.

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Abstract In systems that contain hydrogen sulfide, corrosion products like iron sulfide are electron conducting and are often formed between neighboring electrodes of electrochemical probes and on the sensing element of electrical resistance (ER) probes. Such deposits make it difficult to measure the corrosion rate using the ER and electrochemical probes. Coupled multielectrode array sensors (CMAS) with coated finger-like electrodes have been used in aqueous systems containing H2S to avoid the effect of electron-conducting deposits. However, such a sensor cannot be used in a gas phase or in oi
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Bullard, Sophie J., Bernard S. Covino, James H. Russell, et al. "Laboratory Evaluation of an Electrochemical Noise System for Detection of Localized and General Corrosion of Natural Gas Transmission Pipelines." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03371.

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Abstract Gas transmission pipelines are susceptible to both internal (gas side) and external (soil side) corrosion attack. Internal corrosion is caused by the presence of salt laden moisture, CO2, H2S, and perhaps O2 in the natural gas. Internal corrosion usually manifests itself as general corrosion. However, the presence of chlorides in entrained water also can lead to pitting corrosion damage. The electrochemical noise technique can differentiate general from localized corrosion and provide estimates of corrosion rates without external perturbation of the corroding system. It is increasingl
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Amaya, Hisashi, Masakatsu Ueda, Masayuki Sagara, and Kazuhiko Noda. "Effect of Variation of Local PH on Stress Corrosion Cracking of Stainless Steels in High Concentration Brines." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07096.

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Abstract Recently, high density clear brine has been utilized in the oil and gas exploration field as completion or packer fluid in the annulus between the production casing and tubing. CaCl2 has been widely applied for the clear brine, however, some failure cases of duplex stainless steels or super martensitic stainless steels in high density CaCl2 brine have been reported. The effects of oxygen and/or production gas (CO2/H2S) contamination, or H2S formation as decomposition products of NaSCN-type inhibitor have been discussed. In this study, pH in high concentration brines was evaluated to d
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Bullard, Sophie J., Bernard S. Covino, Stephen D. Cramer, et al. "Electrochemical Noise Monitoring of Corrosion in Natural Gas Production Plants." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05359.

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Abstract A test spool containing two sets of sensors has been inserted in a high pressure environment of a natural gas production plant. The two flange-type sensors are configured so that moisture was more likely to accumulate at one than the other. Electrochemical noise (EN), linear polarization resistance (LPR), and harmonic distortion analysis (HDA) are used in combination to monitor the corrosion occurring in the plant. The 100-day corrosion data for the vertical and horizontal sensors show that corrosion rates were low and averaged ~0.0055 mm/yr. The measured B values were 0.035 V for the
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Crolet, Jean-Louis, and G. Maisonneuve. "Construction of a Universal Scale of Severity for Hydrogen Cracking." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00127.

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Abstract In both its upstream and downstream sectors, the oil &amp; gas industry has to cope with hydrogen cracking in various hydrogenating media, including sour service, cathodic protection (CP), anhydrous HF, or cold hydrogen gas. In order to allow the general transposition of the detailed materials specifications recently established for wet H2S, it has been attempted to directly compare the severity of these different media. The principle of the method employed is to measure the back pressure PH2 developed in a hollow sensor which can be immersed in any corrosive medium. In the steady sta
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Neri, Alessandra, Marco Parvis, Guido Perrone, Sabrina Grassini, Emma Angelini, and Domenico Mombello. "Low-cost fiber optic H2S gas sensor." In 2008 IEEE Sensors. IEEE, 2008. http://dx.doi.org/10.1109/icsens.2008.4716444.

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Jain, Shri Subhash C. "An intrinsic fiber optic H2S gas sensor." In Fourteenth International Conference on Optical Fiber Sensors, edited by A. G. Mignani and H. C. Lefèvre. SPIE, 2000. http://dx.doi.org/10.1117/12.2302222.

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Baste, Y. R., A. V. Borhade, V. B. Gaikwad, G. H. Jain, and D. D. Kajale. "Thick film of CuGeO3 as a H2S gas sensor." In 2008 3rd International Conference on Sensing Technology (ICST 2008). IEEE, 2008. http://dx.doi.org/10.1109/icsenst.2008.4757080.

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You, Kun, Yu-jun Zhang, Li-ming Wang, Ying He, Yi Zhou, and Gao Yan-wei. "Development and application of H2S gas sensor based on embedded system." In 2012 International Conference on Measurement, Information and Control (MIC). IEEE, 2012. http://dx.doi.org/10.1109/mic.2012.6273290.

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Reports on the topic "H2S Gas Sensor"

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Taylor. L51724 Fiber Optic Pressure Sensor Development. Pipeline Research Council International, Inc. (PRCI), 1995. http://dx.doi.org/10.55274/r0010368.

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Fiber optic sensors have been under development in industrial and government laboratories around the world for over a decade The commercial market for fiber sensors for measuring parameters such as temperature, displacement, and liquid level is now estimated to exceed $50 M/year Aside from the commercial interest, the U S. Department of Defense has vigorously pursued the development of fiber gyroscopes and hydrophones In spite of the high level of research and devleopment activity, however, fiber sensors were not successfully applied in the relatively harsh environment of engine combustion cha
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Mills, Kathy, Elizabeth Heck, Alinta Brown, Patricia Funnell, and Lesley Friend. Senses together : Multimodal literacy learning in primary education : Final project report. Institute for Learning Sciences and Teacher Education, Australian Catholic University, 2023. http://dx.doi.org/10.24268/acu.8zy8y.

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[Executive summary] Literacy studies have traditionally focussed on the seen. The other senses are typically under-recognised in literacy studies and research, where the visual sense has been previously prioritised. However, spoken and written language, images, gestures, touch, movement, and sound are part of everyday literacy practices. Communication is no longer focussed on visual texts but is a multisensory experience. Effective communication depends then on sensory orchestration, which unifies the body and its senses. Understanding sensory orchestration is crucial to literacy learning in t
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Taylor. L51755 Development and Testing of an Advanced Technology Vibration Transmission. Pipeline Research Council International, Inc. (PRCI), 1996. http://dx.doi.org/10.55274/r0010124.

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Fiber optic sensors have been under development in industrial and government laboratories around the world for over a decade. The commercial market for fiber sensors for measuring parameters such as temperature, displacement, and liquid level is now estimated to exceed $100 M/year. Aside from the commercial interest, the U. S. Department of Defense has vigorously pursued the development of fiber gyroscopes and hydrophones. In spite of the high level of research and development activity, however, until recently fiber sensors had not been successfully applied in high-temperature engine environme
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Deininger. PR-443-13605-R01 Sensors for Gas Quality Monitoring. Pipeline Research Council International, Inc. (PRCI), 2014. http://dx.doi.org/10.55274/r0010127.

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The purpose of this project was to determine the suitability of low cost environmental air quality sensors, for detection of pipeline gas quality. In particular, this project examined options for detection and quantification of hydrogen sulfide (H2S), water (H2O), and oxygen (O2). All of the sensors used were based on Synkeras existing anodic aluminum oxide (AAO) platform and detection chemistry. The key challenge of this effort was laboratory based demonstration of the feasibility of detecting these three components in natural gas at pressures exceeding 1 atmosphere
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Olsen. PR-179-07200-R01 Evaluation of NOx Sensors for Control of Aftertreatment Devices. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0010985.

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Emissions reduction through exhaust aftertreatment is becoming more common. It is likely to play an important role in meeting new emissions regulations in the future. Currently, the predominate aftertreatment technology for NOX reduction in lean burn natural gas engines appears to be selective catalytic reduction (SCR). In SCR, a reducing agent is injected into the exhaust upstream of a catalyst. Supplying the optimal quantity of reagent is critical to effective application of SCR. If too little reagent is supplied then the NOx reduction efficiency may be too low. If too much reagent is provid
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Hall and Brown. PR-343-14607-R01 Miniaturized Gas Chromatography and Gas Quality Sensor. Pipeline Research Council International, Inc. (PRCI), 2015. http://dx.doi.org/10.55274/r0010558.

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In natural gas transmission and distribution, many metering stations utilize gas chromatography to ensure the gas complies with the pipeline�s gas quality tariff provisions and to determine the chemical energy content of the gas for billing purposes. It is also used as a check on the operation of gas ultrasonic flowmeters through a calculation of the speed of sound in the gas. Because of limitations on existing gas chromatographs (GC�s), including high installed cost, analysis time, carrier gas consumption and others, there is a desire to consider alternate technologies for natural gas analysi
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Gattoni and Olsen. PR-179-10211-R01 Advanced Control Techniques and Sensors for Gas Engines with NSCR. Pipeline Research Council International, Inc. (PRCI), 2012. http://dx.doi.org/10.55274/r0010987.

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High exhaust emissions reduction efficiencies from a spark ignited (SI) internal combustion engine utilizing an NSCR catalyst system requires complex fuel control strategies. The allowable equivalence ratio operating range is very narrow where NSCR systems achieve high exhaust emissions reduction efficiencies of multiple species. Current fuel control technologies utilizing lambda sensor feedback are reported to be unable to sustain these demands for extended operation periods and when transients are introduced. Lambda sensor accuracy is the critical issue with current fuel controllers. The goa
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Pound, B. G. GRI-99-0000 Gap Analysis of the GRI Research Program on Internal Corrosion. Pipeline Research Council International, Inc. (PRCI), 1999. http://dx.doi.org/10.55274/r0010720.

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Extensive information on the corrosion of steel in aqueous CO2 systems is now available from this program and numerous other sources. This information was reviewed to identify what research has been performed and what research remains to be undertaken to develop a expert system/risk management program. Four areas were examined: corrosion mechanisms, mitigation strategies, monitoring techniques, and models/risk assessment. There were five gaps in mechanisms (two for bacteria and one each for flow rate/chloride concentration, hydrocarbons, and organic acids) and four gaps in mitigation (antibiof
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Swanson, De Los Santos, and Miller. L51539 Improved Methods for Inspecting Gas Storage Well Downhole Casing. Pipeline Research Council International, Inc. (PRCI), 1987. http://dx.doi.org/10.55274/r0010090.

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A considerable background of prior work indicates that corrosion damaged casing in gas storage wells is largely due to the development of individual corrosion pits, which occur either on the inside or outside wall of the casing. Such pits are inevitably the result of electrochemical potentials, which are established between unlike conductive materials in an electrolyte. Damage is the result of localized loss of metal, which can be assessed in terms of the size of these individual corrosion flaws. Magnetic corrosion logging has been available for at least 25 years, but has not received wide acc
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Christensen, Lance. PR-459-133750-R02 Fast Accurate Automated System to Find and Quantify Natural Gas Leaks Phases II and III. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012181.

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The Jet Propulsion Laboratory (JPL) has developed a highly sensitive methane sensor called the Open Path Laser Spectrometer (OPLS) which detects methane to 10 ppb s-1 and weighs several hundred grams. This report describes the integration of OPLS into small unmanned aerial systems (sUASs) and the results of flight experiments using OPLS-sUAS. This report also discusses the technical augmentation of OPLS so that it measures ethane and methane simultaneously. The combination of all these capabilities will enable energy companies to monitor natural gas assets for safety and regulatory compliance,
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