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2. Exhaust gas recirculation - Wikipedia

   en.wikipedia.org/wiki/Exhaust_gas_recirculation

   The goal of EGR is thus to reduce NO x production by reducing the combustion temperatures. In modern diesel engines, the EGR gas is usually cooled with a heat exchanger to allow the introduction of a greater mass of recirculated gas. However, uncooled EGR designs do exist; these are often referred to as hot-gas recirculation (HGR).

3. Vehicle emissions control - Wikipedia

   en.wikipedia.org/wiki/Vehicle_emissions_control

   The first legislated exhaust (tailpipe) emission standards were promulgated by the State of California for 1966 model year for cars sold in that state, followed by the United States as a whole in model year 1968. Also in 1966, the first emission test cycle was enacted in the State of California measuring tailpipe emissions in PPM (parts per ...

4. Flag of Texas - Wikipedia

   en.wikipedia.org/wiki/Flag_of_Texas

   The state flag is officially described by law as: a rectangle that: (1) has a width to length ratio of two to three; and (2) contains: (A) one blue vertical stripe that has a width equal to one-third the length of the flag; (B) two equal horizontal stripes, the upper stripe white, the lower stripe red, each having a length equal to two-thirds the length of the flag; and (C) one white, regular ...

5. No, Texas didn't make it illegal to display pride flags in ...

   www.aol.com/no-texas-didnt-illegal-display...

   The claim: Texas declared bringing a pride flag to classrooms is a crime. A Sept. 15 Threads post (direct link, archive link) includes side-by-side images of students wearing “Texas State” T ...

6. Timeline of U.S. state and territory flags - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_U.S._state_and...

   Texas: 1836 1839 Texas: Utah: 1850 1903 1913 2011 2024 Utah: Vermont: 1770 1804 1837 1923 Vermont: Virginia: 1861 1865 1950 Virginia: Washington: 1923 1967 Washington: Washington D.C. 1924 1938 Washington D.C. West Virginia: 1907 1929 West Virginia: Wisconsin: 1866 1913 1981 Wisconsin: Wyoming: 1917 Wyoming: State Current State Pre-1800s 1800s ...

7. Texas is sued over anti-ESG law - AOL

   www.aol.com/news/texas-sued-over-anti-esg...

   (Reuters) -Texas was sued on Thursday by a nonprofit whose members support environmentally-friendly policies, and which seeks to block a state law targeting businesses that support reduced ...