THE INFLUENCE OF INTAKE VALVE CLOSE TIMING ON THE ENVIRONMENTAL PERFORMANCE OF A SPARK IGNITION ENGINE USING GASOLINE AND NATURAL GAS by Tadas VIPARTAS, Alfredas RIMKUS, Jonas MATIJOŠIUS

“…The changes in oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), nitrous oxide (NOx), methane (CH4), and propane (C3H8) gas emissions were observed in the aforementioned intake valve timing range.…”
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Effects of Igneous Intrusion on Microporosity and Gas Adsorption Capacity of Coals in the Haizi Mine, China by Jingyu Jiang, Yuanping Cheng

“…Mining activities near the sill created a low pressure zone leading to the rapid accumulation of methane and gas outbursts in the Haizi Mine.…”
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New Applications in Gas Geochemistry by Francesco Italiano, Andrzej Solecki, Giovanni Martinelli, Yunpeng Wang, Guodong Zheng

“…Quantitative analysis of methane and CO2 migration is important for climate change studies. …”
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Mathematical Model of Maximum Commutation Half Cycle for Thermal Countercurrent Oxidation of Low-Concentration Gas in Coal Mine Ventilation by Kuan Wu, Shiliang Shi, Yong Chen

“…Based on orthogonal experiments, the maximum commutation half cycle for thermal countercurrent oxidation of the exhaust gas in the coal mine ventilation under 25 working conditions with the combination of different methane concentrations, inlet speeds, porosities, and oxidation bed filling lengths is investigated. …”
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ExAIRFC-GSDC: An Advanced Machine Learning-Based Interpretable Framework for Accurate Gas Leakage Detection and Classification by B. Lalithadevi, S. Krishnaveni

“…This study employs a dataset comprising gas sensor measurements that encompassing gasses, such as Liquid Petroleum Gas (LPG), Compressed Natural Gas (CNG), Methane, Propane, and others. Various machine learning classifiers, including K-Nearest Neighbors, Decision Tree, Support Vector Machines, XGBoost, and others, are compared with ExAIRFC-GSDC for gas detection. …”
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A Novel Continuous Fracture Network Model: Formation Mechanism, Numerical Simulation, and Field Application by Zixi Guo, Jinzhou Zhao, Xinhao Sun, Chengwang Wang, Dali Guo, Haoran Hu, Hongna Wang, Qinggang Zeng

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Thermodynamic Analysis of Steam Gasification for Syngas Production in Biomass Renewable Energy Using Parametric Investigation by Ziyu Wang, Charalampos Baniotopoulos

“…This study has investigated the impcats of biomass flow rate, temperature of gasification, and steam flow rate on mole fraction and mass flow rate of carbon monoxide, hydrogen, carbon dioxide, methane and steam gases. Also, the amount of heat consumed or produced in drying, pyrolysis and Gibbs reactors was also studied in this investigation. …”
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Biogas generation from floral waste using different techniques by M.B. Kulkarni, P.M. Ghanegaonkar

“…Raw biogas from floral waste contains over 57% methane, which is higher than the previous studies. …”
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Is It Possible to Produce Meat Without Animals? The Potential of Microorganisms as Protein Sources by Alan Portal D’Almeida, Tiago Lima de Albuquerque

“…Meat production, especially from cattle, is a significant contributor, releasing methane—a greenhouse gas far more potent than CO₂—and driving deforestation for pastureland. …”
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Assessment of Air Quality and Noise around Okrika Communities, Rivers State, Nigeria by AE Gobo, TJK Ideriah, TE Francis, HO Stanley

“…The parameters measured were suspended particulate matter, nitrogen dioxide, sulphur dioxide, hydrogen sulphide, ammonia, carbon monoxide, methane and volatile organic carbon, temperature, wind speed, wind direction and relative humidity. …”
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Study on Key Parameters of Directional Long Borehole Layout in High-Gas Working Face by Zhenguo Yan, Yanping Wang, Jingdao Fan, Yuxin Huang, Yanpeng He

“…This research aims to obtain a new way based on the directional long borehole layout to investigate the gas migration behavior of coal bed methane. In view of the study of the oil-type gas reservoir and the influence range of mining on the working face in the surrounding rock, the paper puts forward the optimization method of the directional long borehole layout of the surrounding rock and the method of the borehole layout with comprehensive consideration of the influence of mining on the failure of the roof and floor and the distribution of surrounding rock gas-bearing reservoirs. …”
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Effects of the Fuel Species on the Combustion Pressure in a Two Staged Fueled Scramjet Combustor by Hironobu Nishiguchi, Masatoshi Kodera, Sadatake Tomioka

“…The experimental results confirmed that pressure peaks at injections were clearly separated in the hydrogen case, while these interacted with each other in the methane case with a lower reactivity than H₂. …”
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Polyamines Interaction with Gaseous Signaling Molecules for Resilience Against Drought and Heat Stress in Plants by Nidhi, Noushina Iqbal, Nafees A. Khan

“…The key regulators of plant stress responses include polyamines (PAs) and gaseous signaling molecules (GSM), such as hydrogen sulfide (H₂S), nitric oxide (NO), methane (CH₄), carbon monoxide (CO), carbon dioxide (CO₂), and ethylene (ET). …”
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The Hydrolysis of Ear-Mushroom Cultivation Media Residue by Using Three Kinds of Cellulase Enzymes by Denny Irawati

“…This pollutes the environmental pollution due to discharge of methane into the air. Therefore, the utilization of residual ear mushroom media needs to be processed. …”
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Collision-induced Absorption Spectra of N2 and CH4 by Ryan M. Johnson, Peter F. Bernath, Brant Billinghurst, Jianbao Zhao

“…We present experimental spectra of nitrogen–methane mixtures with an accompanying fit of N _2 -CH _4 collision-induced absorption in the 30–400 cm ^−1 region at about 130 K. …”
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Modelling of quantum yields in photocatalytic membrane reactors immobilising titanium dioxide by Ignazio Renato Bellobono, Giulia de Martini, Paola Maria Tozzi, Carmen Canevali, Franca Morazzoni, Roberto Scotti, Riccardo Bianchi

“…For some model molecules (methanoic and ethanoic acids, methane, and phenol), systematic investigations of quantum yields were carried out in the present paper, as a function of concentration and of absorbed radiant power. …”
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Controlling Effect of Wave-Dominated Delta Sedimentary Facies on Unconventional Reservoirs: A Case Study of Pinghu Tectonic Belt in Xihu Sag, East China Sea Basin by Qinglong Chen, Renhai Pu, Xiaomin Xue, Ming Han, Yanxin Wang, Xin Cheng, Hanning Wu

“…The accumulation of coalbed methane and shale gas is controlled by the sedimentary facies and the degree of thermal evolution under the factors of burial depth. …”
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Treatment methods for sugar rich wastewater: A review by Sadia Fida, Maria Yasmeen, Rabia Adnan, Muhammad Zeeshan

“…Anaerobic methods are more energy-efficient, enabling energy recovery as methane and hydrogen gas while producing less sludge. …”
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Study on Gas Control Methods Optimization for Mining Safety by Liwen He, Yingcheng Dai, Sheng Xue, Chunshan Zheng, Baiqing Han, Xin Guo

“…An investigation was undertaken to analyze effects of those four measures on gas emission, methane concentration, and gas drainage quantity in No. 2 1024 mining panel of No. 10 seam. …”
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Research on Spectroscopy Modulation of a Distributed Feedback Laser Diode Based on the TDLAS Technique by Bin Li, Liang Xue, Nan Ji, Da Hui Wei

“…The proposed cost-effective circuits can replace commercial instruments to drive the laser to meet the requirements of methane detection experiments. It can also be applied to detect other gases by changing the light source lasers and parameters of the circuits.…”
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