TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The heat transfer device is a refrigeration device (automotive air conditioning systems, residential air conditioning systems, commercial air conditioning systems, residential refrigerator systems, residential freezer systems, commercial refrigerator systems, commercial freezer systems, chiller air conditioning systems, chiller refrigeration systems, or heat pump systems). The heat transfer device contains a compressor. The mechanical power generation device is adapted to use a Rankine cycle or its modification to generate work from heat.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: (I) further comprises R-32, R-161 or R-152a; R-1234yf; and R-125. (I) comprises R-161 or R-152a; or R-143a or R-125, preferably R-134a. The R-32 or R-161 is R-32. (I) comprises: R-1225yeE, R-152a and R-125; R-1225yeE, R-161 and R-134a; R-1225yeE, R-161 and R-125; R-1225yeE, R-125 and R-32; R-125 (1-3 parts), R-152a (1-12 parts) and R-1225yeE (85-98 parts); R-125 (1-4 parts), R-161 (1-3 parts) and R-1225yeE (93-98parts); R-161 (1-3 parts), R-134a (1-10 parts) and R-1225yeE (87-98 parts); R-32 (1-3 parts), R-125 (1-3 parts), R-152a (1-12 parts) and R-1225yeE (82-97 parts); R-132 (1-3 parts), R-125 (1-3 parts), R-161 (1-5 parts) and R-1225yeE (89-97 parts); R-32 (1-9 parts), R-134a (4-8 parts), R-1234yf (4-52 parts) and R-1225yeE (39-78 parts); R-32 (3-9 parts), R-134a (4-8 parts), R-1234yf (4-28 parts), and R-1225yeE (59-79 parts); R-32 (3-7 parts), R-134a (4-6 parts), R-1234yf (4-28 parts), and R-1225yeE (59-78 parts); or R-32 (1-3 parts), R-134a (4-6 parts), R-1234yf (4-52 parts) and R-1225yeZ (39-78 parts). The mass ratio of R-32 to R-1225yeE in (I) is 0.20-0.35:1, below 0.16:1, less than 0.081:1, less than 0.6:1, 0.056:1 or higher, 0.06-0.08 or 0.07:1. (I) comprises 6% of R-32, 7% of R134a and 87% of R-1225yeE. The R-1225yeE component comprises at least 95 (preferably at least 98)% E isomer. (I) comprises: 5-7 parts of R-32 (preferred) or R-161, 6-8 parts of R-134a (preferred) or R-125, and 86-88 parts of R-1225 yeE; 2-4 parts of R-32, 2-4 parts of R-125, 3-6 parts of R-161 and 86-93 parts of R-1225 yeE; 2-4 parts of R-32, 2-4 parts of R-125, 10-13 parts of R-152a, and 79-86 parts of R-1225 yeE; or 2-4 parts of R-161, 2-4 parts of R-125, and 92-96 parts of R-1225 yeE, where the sum of all parts are 100. (I) further comprises a lubricant (mineral oil, silicone oil, polyalkyl benzenes, polyol esters, polyalkylene glycols, polyalkylene glycol esters, polyvinyl ethers and/or poly (alpha-olefins)); a stabilizer (diene-based compounds, phosphates, phenol compounds and/or epoxides); and an additional flame retardant (tri-(2-chloroethyl)-phosphate, (chloropropyl)phosphate, tri-(2,3-dibromopropyl)-phosphate, tri-(1,3-dichloropropyl)-phosphate, diammonium phosphate, various halogenated aromatic compounds, antimony oxide, aluminum trihydrate, polyvinyl chloride, a fluorinated iodocarbon, a fluorinated bromocarbon, trifluoroiodomethane, perfluoroalkyl amines, and/or bromofluoroalkyl amines). (I) is a refrigerant composition.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The components capable of forming foam are polyurethanes, thermoplastic polymers and resins, such as polystyrene, and/or epoxy resins. EXAMPLE - No preparative examples are given.