Related by context. Frequent words. (Click for all words.) 65 commercially viable 56 economically feasible 55 economically viable 52 feasible 51 commercialize 49 technically feasible 49 uneconomical 48 economically unviable 48 successfully commercialized 48 viable 47 commercialized 46 commercially 45 sufficient quantities 45 uneconomic 44 prohibitively expensive 44 unfeasible 43 producible 43 viably 42 transplantable 42 successfully commercialize 41 artificial photosynthesis 41 technologically feasible 41 unviable 41 cheaper 41 fundable 40 commercially unviable 40 financially feasible 40 commercialization 40 economically unfeasible 40 economically recoverable 39 optical biosensors 39 financially unviable 39 substitutable 39 CO2 sequestration 39 thermoelectric materials 39 prohibitively costly 39 gas hydrates 39 cellulosic feedstocks 39 impractical 39 expensive 38 financially viable 38 infeasible 38 extractable 38 Quantum dots 38 materially adversely affect 38 manufacture 38 environmentally benign 38 patentable 37 profitable 37 prohibitive 37 logistically challenging 37 biosensing 37 transgenic animals 37 minable 37 commercializing 37 efficacious 37 viral vectors 37 without limitation 37 unproved reserves 37 manufacturable 36 Cellulosic ethanol 36 biomass feedstock 36 realizable 36 gasify 36 impracticable 36 materially adversely affected 36 costlier 36 cellulose ethanol 36 economically advantageous 36 suitable 36 chemically synthesized 36 less expensively 35 ethically acceptable 35 plasma gasification 35 cellulosic 35 biofuel feedstock 35 underground coal gasification 35 Feasibility studies 35 Integrated Gasification Combined Cycle 35 differ materially 35 Ampligen R 35 tenable 35 contaminate groundwater 35 sufficient 35 Risks uncertainties 35 accretive acquisitions 35 photonic devices 35 Neal Hot Springs 35 Commercializing 35 renewable feedstocks 35 monetize 34 necessary regulatory approvals 34 regulatory authorizations 34 finite resource 34 indigenously 34 environmentally harmful 34 monetise 34 requisite regulatory approvals 34 uncertainties materializes 34 methane hydrate 34 large scale