The Geographies of COVID-19
Geospatial Stories of a Global Pandemic
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Article
Open AccessGenerative AI tools can enhance climate literacy but must be checked for biases and inaccuracies
In the face of climate change, climate literacy is becoming increasingly important. With wide access to generative AI tools, such as OpenAI’s ChatGPT, we explore the potential of AI platforms for ordinary citi...
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Article
Enhanced Electrochemical Performance of Reduced Graphene Oxide: Yb2O3 Nanocomposite for Energy Storage Applications
This study details the successful creation of a nanocomposite consisting of reduced graphene oxide (rGO) and Yb2O3 using a hydrothermal-assisted simple solution method. The research underscores the significance o...
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Article
Assessment of biological properties of a methanolic extract obtained from the stem of Cissus vitiginea
Scientists are working together for develo** therapeutic agents to cure or delay burdensome diseases. Medicinal herbs are used from immemorial times in therapeutics. Most traditional medicines are cost-effec...
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Article
Exhaust Emissions and Aftertreatments of Hydrogen Internal Combustion Engines: A Review
Adopting carbon-neutral fuels is paramount to aligning internal combustion engines with global efforts to mitigate the impact of global warming. Hydrogen offers distinct advantages over other renewable fuels o...
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Article
Open AccessCorrection to: A dynamic soft sensor based on hybrid neural networks to improve early off-spec detection
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Article
Experimental and Numerical Investigations of Ultra-High Compressed Natural Gas Substitution Cases in a Heavy-Duty Diesel Engine
The dual-fuel combustion strategy using compressed natural gas (CNG) and diesel exhibits immense potential for improving conventional diesel engines. To reduce CO2 emissions, diesel should be substituted with CNG...
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Article
Open AccessA Dynamic Soft Sensor Based on Hybrid Neural Networks to Improve Early Off-spec Detection
Soft sensors are widely used to predict hard-to-measure quality variables in industrial processes. For efficient quality control, prediction of quality dynamics is essential to prevent off-specification produc...
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Article
Sound-Based Abnormal Combustion Classification Model for High Compression Ratio, Spark-Ignition Engines Using Mel-Frequency Cepstrum Coefficients and Ensemble Learning Algorithms
A supervised machine learning model was developed to determine knocking in a spark ignition engine. The engine sound was delivered to an operator via an extended metal tube installed on the cylinder block. The...
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Article
Conductivity maxima in electrolyte-gated transistors with molecular-doped semiconducting polymer films
In contrast to that of conventional inorganic semiconductor materials, the physics of the do** of π-conjugated organic materials is poorly understood. Therefore, this study aimed to investigate the mechanis...
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Chapter and Conference Paper
Analysis of NO2 Removal Efficiency of Air Purification System in Bus Stop Using CFD
Among air pollutants generated in cities, NO2 occurs in vehicles and seriously impacts passengers’ health waiting at bus stops. Therefore, installing an air purification system inside a bus stop was proposed to i...
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Article
Turbocharging Effects on Emissions Reduction and Thermal Efficiency under Diesel/Natural Gas Dual-fueled Combustion
Dual-fueled combustion, using high and low reactivity fuels simultaneously, is a promising combustion method that enables reduction of nitrogen oxides (NOx) emission. However, the total amount of NOx emissions...
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Article
Acoustic Characteristics of the Abnormal Combustion in a High-Compression Ratio, Spark-Ignition Engine
Engine knocking is often identified by an operator based on the combustion sound emanating from the cylinder block during engine calibration in a test cell. Such human-hearing-based acoustic knock determinatio...
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Article
Suppression of thermal deformation of machine tool spindle using TiC-Fe composite
The minimization of error generation in machine tool spindle is important because high-speed and ultra-precision machining are extensively utilized in industrial fields. The thermal deformation of the machine ...
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Article
Effects of Engine Cooling Strategy on Knock Suppression in High-Compression Ratio Spark-Ignition Engine
Increasing the compression ratio is one of the methods to increase the thermal efficiency of a gasoline spark-ignition (SI) engine. However, this exposes the end-gas to thermodynamic conditions that are prone ...
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Chapter
Conclusion: The Consequences of COVID-19 – What Is Next?
The preparation of this volume is bracketed by two events: first, the global pandemic that continues to this day, and second, the emerging conflict in Ukraine where Russia has invaded a sovereign nation. This ...
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Chapter
Quantitative Geographical Approaches in COVID-19 Research: A Review on First- and Second-Order Impacts
This chapter reviewed the role of quantitative geographical approaches in COVID-19 research. We particularly focused on two types of COVID-19 research: (1) studies on first-order impacts that investigate immed...
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Book
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Article
Hardware-friendly architecture for a pseudo 2D weighted median filter based on sparse-window approach
Stereo matching, which is conventionally used for three-dimensional (3D) information acquisition through cameras, is the most actively studied subject in computer vision. To obtain sophisticated 3D information...
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Article
Mobility–stability trade-off in oxide thin-film transistors
Thin-film transistors based on amorphous oxide semiconductors could be used to create low-cost backplane technology for large flat-panel displays. However, a trade-off between mobility and stability has limite...
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Article
Modeling of the wet flue gas desulfurization system to utilize low-grade limestone
Wet flue gas desulfurization was simulated to improve gypsum production using low-grade limestone. High-grade limestone with 94 wt% CaCO3 content is used for producing gypsum with 93 wt% purity, but owing to the ...
