| 最初の文字 | キーワード例 | 延べ件数 |
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| 0-9 | 3D printing (2 件), 3D bioprinting (2 件), 3DIC (1 件), 3D printability (1 件), 2,2'-bipyridine (1 件), 3D cell culture (1 件) 等 | 11 件 |  |
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| A | Adsorption (10 件), active matter (4 件), Absorption (3 件), AI (3 件), ammonia cracking (3 件), Amine (3 件) 等 | 163 件 | |
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| B | Biomass (6 件), Bioethanol (2 件), Bubble rise motion (2 件), Biodegradable polymer (2 件), Biopharmaceuticals (2 件), Boudouard reaction (1 件) 等 | 92 件 | |
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| C-CH | Catalyst (11 件), CFD (8 件), Carbon dioxide (8 件), carbon nanotube (4 件), Cellulose (3 件), CCU (3 件) 等 | 157 件 | |
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| CI-CZ | CO2 Capture (11 件), Crystallization (11 件), CO2 electrolysis (6 件), CO2 (3 件), coating (3 件), CO2 Absorption (3 件) 等 | 187 件 | |
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| D | deep eutectic solvent (12 件), direct air capture (8 件), drying (6 件), Drop-in fuel (5 件), Degradation (4 件), distillation (3 件) 等 | 150 件 | |
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| E | Emulsion (8 件), Extraction (6 件), Electrolysis (4 件), Electrocatalyst (4 件), Electrodialysis (4 件), Encapsulation (3 件) 等 | 133 件 | |
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| F | Flame spray pyrolysis (4 件), Fine Bubble (4 件), Fuel Cell (4 件), Fluidized bed (4 件), Fischer-Tropsch Synthesis (3 件), Freezing (3 件) 等 | 121 件 | |
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| G | gasification (4 件), Gold (4 件), Gold nanoparticles (3 件), Gas sensor (3 件), Gas separation (3 件), Gel (3 件) 等 | 81 件 | |
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| H | Hydrogen production (16 件), hydrogen (7 件), hydrogel (7 件), HSP (3 件), Hydrogen evolution reaction (3 件), Hydrolysis (3 件) 等 | 140 件 | |
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| I | Interfacial polymerization (10 件), ionic liquid (6 件), Interface (4 件), In-situ observation (2 件), ionic liquids (2 件), Iron (2 件) 等 | 96 件 | |
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| J | Janus particle (2 件), jam (1 件), Japanese Traditional Company (1 件) | 4 件 | |
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| K | kinetics (2 件), K promotion (1 件), Komagataella phaffii (1 件), kinetic model (1 件), Kinetic Analysis (1 件), Kinetic analysis of hydrodefluorination (1 件) 等 | 7 件 | |
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| L | lithium-ion battery (4 件), liposome (4 件), lipid assembly (3 件), liquid-liquid phase separation (3 件), LLM (3 件), liquid crystal (3 件) 等 | 97 件 | |
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| M-MH | Machine learning (31 件), metal-organic frameworks (15 件), Methanation (8 件), Metal-organic framework (6 件), membrane (6 件), membrane separation (4 件) 等 | 166 件 | |
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| MI-MZ | mixing (9 件), MOF (5 件), molecular dynamics (4 件), Microwave (4 件), Microcapsule (3 件), Microwave heating (3 件) 等 | 114 件 | |
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| N | Numerical simulation (5 件), nanofiber (3 件), Ni catalyst (3 件), nanoparticles (3 件), nanoparticle (3 件), Nickel (3 件) 等 | 81 件 | |
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| O | Organic solvent nanofiltration (5 件), Organic solvent reverse osmosis (5 件), Oxidation (2 件), Oxygen-enriched air (2 件), Oxygen Reduction Reaction (2 件), Optimization (2 件) 等 | 65 件 | |
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| P-PH | Peptide (8 件), PFAS (7 件), Photocatalyst (6 件), pervaporation (4 件), PEM Water Electrolysis (3 件), Phase Equilibria (3 件) 等 | 115 件 | |
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| PI-PZ | process simulation (6 件), Polymer electrolyte fuel cell (5 件), Polyamide membrane (5 件), Plant oil deoxygenation (5 件), Pyrolysis (4 件), Process design (4 件) 等 | 182 件 | |
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| Q | quartz crystal microbalance (2 件), QCM (2 件), quality (1 件), Quincke Roller (1 件), Quantum Sieving (1 件), Quantitative Evaluation (1 件) 等 | 9 件 | |
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| R | Recycling (4 件), rheology (3 件), Reverse Osmosis (2 件), Redox (2 件), Renewable energy (2 件), rare earth (2 件) 等 | 73 件 | |
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| S-SO | simulation (7 件), self-assembly (6 件), Separation (4 件), Silica (4 件), solid catalyst (3 件), Solvent extraction (3 件) 等 | 136 件 | |
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| SP-SZ | surfactant (7 件), Startup (6 件), Structured catalyst (4 件), supercritical water (4 件), Surface modification (4 件), Supercritical carbon dioxide (4 件) 等 | 134 件 | |
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| T | Thermal conductivity (3 件), Taylor-Couette flow (3 件), transfer learning (3 件), transdermal delivery (3 件), Thermal energy storage (2 件), Thermodynamic Properties (2 件) 等 | 73 件 | |
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| U | Upcycling (5 件), Ultrafine Bubble (4 件), Ultrasound (2 件), UiO-66 (2 件), Unused heat utilization (1 件), Underwater superoleophobicity (1 件) 等 | 29 件 | |
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| V | viscosity (6 件), Viscoelastic fluid (4 件), Viscoelasticity (2 件), Vapor-liquid equilibria (2 件), Value Chain (2 件), Vapor phase synthesis (1 件) 等 | 37 件 | |
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| W | Woody biomass (8 件), Water electrolysis (4 件), Waste Plastics (3 件), Water electrolyzer (2 件), Water Treatment (2 件), Water starvation (1 件) 等 | 42 件 | |
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| X | XPS analysis (1 件), X-ray CT (1 件), X-type zeolite membrane (1 件) | 3 件 | |
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| Y | YSZ (1 件), Yeast promoter engineering (1 件) | 2 件 | |
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| Z | Zeolite (10 件), Zwitterionic Polymer (2 件), Zeolite supported Pt catalyst (1 件), Zwitterionic nanofiltration membrane (1 件), Zeolitic adsorbent (1 件), Zinc-Air Battery (1 件) 等 | 30 件 | |
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| 非英数字 | * (3 件) | 3 件 | |
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