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2. Atom economy - Wikipedia

   en.wikipedia.org/wiki/Atom_economy

   Atom economy. Atom economy (atom efficiency/percentage) is the conversion efficiency of a chemical process in terms of all atoms involved and the desired products produced. The simplest definition was introduced by Barry Trost in 1991 and is equal to the ratio between the mass of desired product to the total mass of reactants, expressed as a percentage.

3. Energy-efficient driving - Wikipedia

   en.wikipedia.org/wiki/Energy-efficient_driving

   The pulse-and-glide strategy is proven to be an efficient control design in both car-following [26] and free-driving scenarios, [28] with up to 20% fuel saving. In the PnG strategy, the control of the engine and the transmission determines the fuel-saving performance, and it is obtained by solving an optimal control problem (OCP).

4. Nuclear reactor - Wikipedia

   en.wikipedia.org/wiki/Nuclear_reactor

   According to the International Atomic Energy Agency there are at least 100 research reactors in the world fueled by highly enriched (weapons-grade/90% enrichment) uranium. Theft risk of this fuel (potentially used in the production of a nuclear weapon) has led to campaigns advocating conversion of this type of reactor to low-enrichment uranium ...

5. Electricity policy of Ontario - Wikipedia

   en.wikipedia.org/wiki/Electricity_policy_of_Ontario

   The situation drew the attention of the federal nuclear regulator, the Atomic Energy Control Board of Canada (AECB) (now Canadian Nuclear Safety Commission), and was acknowledged by Ontario Hydro. In 1996, the AECB judged the situation at Pickering A to be particularly critical and issued the plant a six-month operating license.

6. Atomic ratio - Wikipedia

   en.wikipedia.org/wiki/Atomic_ratio

   The atomic ratio is a measure of the ratio of atoms of one kind (i) to another kind (j). A closely related concept is the atomic percent (or at.%), which gives the percentage of one kind of atom relative to the total number of atoms. [1] The molecular equivalents of these concepts are the molar fraction, or molar percent.

7. Tin - Wikipedia

   en.wikipedia.org/wiki/Tin

   Tin pest can occur in lead-free solders, leading to loss of the soldered joint. Replacement alloys are being found, but the problems of joint integrity remain. [ 92 ] A common lead-free alloy is 99% tin, 0.7% copper, and 0.3% silver, with melting temperature of 217 °C (422.6 °F).

8. Electric car - Wikipedia

   en.wikipedia.org/wiki/Electric_car

   The last of them was the rocket-shaped La Jamais Contente, driven by Camille Jenatzy, which broke the 100 km/h (62 mph) speed barrier by reaching a top speed of 105.88 km/h (65.79 mph) in 1899. Electric cars remained popular until advances in internal-combustion engine (ICE) cars and mass production of cheaper gasoline- and diesel -powered ...

9. Phase transition - Wikipedia

   en.wikipedia.org/wiki/Phase_transition

   At the phase transition point for a substance, for instance the boiling point, the two phases involved - liquid and vapor, have identical free energies and therefore are equally likely to exist. Below the boiling point, the liquid is the more stable state of the two, whereas above the boiling point the gaseous form is the more stable.