| 最初の文字 | キーワード例 | 延べ件数 |
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| 0-9 | 25th anniversary (2 件), 2,5-furandicarboxylic acid (1 件), 3D printing (1 件), 1,3-PDO (1 件), 2D Ising model (1 件), 5-(hydroxymethyl)furfural (1 件) 等 | 9 件 |  |
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| A | adsorption (14 件), Atomic Layer Deposition (4 件), absorption (4 件), ammonia (4 件), ALD (4 件), antibody (4 件) 等 | 195 件 | |
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| B | Biomass (6 件), Bubble dynamics (4 件), biomanufacturing (3 件), Bioprocess (2 件), Biogas (2 件), bicellar mixtures (2 件) 等 | 108 件 | |
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| C-CH | CFD (8 件), Carbon Neutral (7 件), carbon nanotube (6 件), CCU (6 件), catalyst (6 件), carbon dioxide (5 件) 等 | 171 件 | |
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| CI-CZ | crystallization (10 件), CO2 (10 件), CO2 capture (5 件), CO2 separation (5 件), Cryopreservation (3 件), CVD (3 件) 等 | 181 件 | |
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| D | Deep eutectic solvent (9 件), Drying (4 件), dewatering (3 件), deep eutectic solvents (3 件), Dry reforming (3 件), Discrete Element Method (3 件) 等 | 145 件 | |
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| E | Electrocatalyst (9 件), Extraction (8 件), electrocatalysts (4 件), Emulsion (4 件), Enzyme (3 件), Enzymatic reaction (2 件) 等 | 117 件 | |
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| F | Fuel cell (7 件), fluidized bed (7 件), Flame Spray Pyrolysis (4 件), Fouling (3 件), freeze drying (3 件), Flow reactor (2 件) 等 | 98 件 | |
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| G | Gas separation (4 件), Gas diffusion layer (3 件), graft polymerization (3 件), Gold (3 件), green ammonia (3 件), Gas hydrate (2 件) 等 | 68 件 | |
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| H | Hydrogen (9 件), hydrogel (8 件), Hydrothermal (6 件), Hydrogen peroxide (5 件), Hydrothermal treatment (4 件), Hydrothermal synthesis (3 件) 等 | 138 件 | |
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| I | ionic liquid (7 件), Interfacial polymerization (5 件), Image analysis (3 件), Immobilized catalyst (2 件), Induction Heating Mixing Impeller (2 件), Innovation (2 件) 等 | 76 件 | |
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| J | Janus multifunctional nanofiber (1 件), juvenile hormone (1 件), Japanese Company (1 件), Jump test (1 件) | 4 件 | |
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| K | kinetic analysis (2 件), kinetic model (1 件), Kinetic TSA separation (1 件), Korteweg force (1 件), kinetic reaction model (1 件), Kinetic Modeling (1 件) 等 | 12 件 | |
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| L | Lithium-ion battery (5 件), liposome (4 件), Liquid-liquid equilibria (3 件), Life cycle assessment (3 件), liposomes (3 件), lignin (3 件) 等 | 93 件 | |
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| M-MH | Machine learning (26 件), Membrane (15 件), metal-organic frameworks (7 件), Membrane separation (6 件), Methanation (6 件), membrane reactor (4 件) 等 | 161 件 | |
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| MI-MZ | Mixing (10 件), molecular dynamics (9 件), Microwave (5 件), microcapsule (3 件), Molecular dynamics simulation (3 件), MOF (3 件) 等 | 127 件 | |
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| N | Nanoparticles (7 件), nucleation (5 件), Nanoparticle (5 件), numerical simulation (5 件), nanofiltration (3 件), nanofiber (2 件) 等 | 80 件 | |
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| O | organic solvent nanofiltration (4 件), Optimization (3 件), osmotic pressure (3 件), Oxygen Reduction Reaction (3 件), Oxygen-enriched air (2 件), oil-in-water emulsion (1 件) 等 | 54 件 | |
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| P-PH | PEFC (6 件), PFAS (6 件), peptide (5 件), permeability (3 件), pervaporation (3 件), PET (2 件) 等 | 97 件 | |
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| PI-PZ | polymer (6 件), polymer electrolyte fuel cell (6 件), polyelectrolyte complex (4 件), plasma (4 件), precious metals (3 件), Powder compaction (3 件) 等 | 173 件 | |
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| Q | QCM (1 件), quantum computer (1 件), quantum computing (1 件), Quantitative Evaluation (1 件), Quartz Crystal Microbalance (1 件), quasi-solid (1 件) 等 | 7 件 | |
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| R | Rheology (4 件), Reactive crystallization (3 件), Residence time distribution (3 件), Risk assessment (3 件), Recycling (3 件), redox (3 件) 等 | 81 件 | |
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| S-SO | separation (8 件), solvent extraction (7 件), Solubility (5 件), silica (5 件), simulation (4 件), slurry (3 件) 等 | 144 件 | |
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| SP-SZ | Startup (7 件), supercritical carbon dioxide (7 件), Supercritical CO2 (5 件), supercritical water (4 件), Surface modification (4 件), Surface treatment (3 件) 等 | 101 件 | |
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| T | Thermal Energy Storage (4 件), Transdermal drug delivery (4 件), transdermal delivery (4 件), thermal plasma (2 件), temperature (2 件), transdermal (2 件) 等 | 79 件 | |
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| U | ultrasound (3 件), Upcycling (2 件), Urea (1 件), university laboratories (1 件), Unit operation (1 件), Ultrafine bubble generator (1 件) 等 | 22 件 | |
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| V | Vaccine (5 件), viscosity (4 件), vesicles (1 件), Vapor-liquid equilibria (1 件), Viscoelastic fluid (1 件), viscoelasticity (1 件) 等 | 30 件 | |
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| W | wettability (2 件), water treatment (2 件), water electrolysis (2 件), wound healing (2 件), Women's Empowerment (2 件), wastewater treatment (2 件) 等 | 36 件 | |
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| X | xylose (2 件), XANES/ELNES (1 件), X-ray CT imaging (1 件), xylitol (1 件) | 5 件 | |
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| Y | Yttrium doping (1 件), Yoshino cypress (1 件) | 2 件 | |
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| Z | zeolite (11 件), zeolite-templated carbon (1 件), zinc cobaltite (1 件), zwitterionic polymer (1 件), Zinc (1 件), ZSM-5 (1 件) 等 | 29 件 | |
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| 非英数字 | * (5 件), precision medicine (1 件) | 6 件 | |
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