hydrocarbons (HC, chemical compounds in fuel of the form CmHn) to produce carbon dioxide (CO2) and water (H2O). These stringent emission control regulations...

standard two-stroke engine motorcycles are challenged by the strict HC and PM emissions limits. It is expected that technologies such as direct injection...

Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines. The primary emissions studied...

Bharat stage emission standards (BSES) are emission standards instituted by the Government of India to regulate the output of air pollutants from compression...

and emissions. Regarding hydrocarbon (HC) emission characteristics of the RENESIS, the use of the side exhaust port allowed for about 35 – 50% HC reduction...

mainly concerned carbon monoxide (CO) and hydrocarbons (HC). Regulations on nitrogen oxide emissions (NOx) were introduced in the United States, Japan, and...

increases the power output and at the same time reduces HC emissions. At the same time, HC emissions can be lowered by reducing the pre-ignition of the T...

Positron emission tomography (PET) is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes...

barium oxide impregnated insert by thermionic emission. A noble gas flows into the insert region of the HC and is partially ionized by the emitted electrons...

Stimulated emission is the process by which an incoming photon of a specific frequency can interact with an excited atomic electron (or other excited molecular...

lawnmowers) comprised 20% of HC and 23% of CO total emissions. While recreational SI vehicles produce an aggregate of <4% of all HC emissions in the US, based on...

to predominate the black body emission spectrum. Before it had even reached the red hot temperature, the thermal emission was mainly at longer infrared...

hydrocarbons (properly indicated as CxHy, but typically shown simply as "HC" on emissions-test slips) from unburnt fuel, nitrogen oxides (NOx) from excessive...

produces carbon dioxide (CO2), carbon monoxide (CO), and hydrocarbon (HC) emissions, while hydrogen (H2) reacts with oxygen (O2) to produce only water (H2O)...

combustor improves fuel-air mixing, for over 10% better NOx, CO, and HC emissions. The PW 4000 series engine family uses a numbering systematic with the...

European models meet Euro 3 emissions specifications. In the US, a "PAIR" air injection system reduces CO and HC emissions. A stiff, twin-spar aluminum...

lubricated by oil. If this oil travels unchecked along the valve stem, engine HC emissions will become excessive. To control this, an elastomeric seal is fitted...

vehicles from some car makers; the software recognized when the standardized emissions test was being done, and adjusted the engine to emit less during the test...

a temperature greater than absolute zero emits thermal radiation. The emission of energy arises from a combination of electronic, molecular, and lattice...

is a hydrogen spectral series of transitions and resulting ultraviolet emission lines of the hydrogen atom as an electron goes from n ≥ 2 to n = 1 (where...

current version, emission factors for the years from 1990 to 2035 are available. Factors for the following components are provided: CO, NOx, HC and several...

{1}{e^{\frac {hc}{\lambda k_{\text{B}}T}}-1}}\approx {\frac {1}{\frac {hc}{\lambda k_{\text{B}}T}}}={\frac {\lambda k_{\text{B}}T}{hc}}.} This results...

spectrum of thermal emission from objects, but it fails to accurately fit the experimental data for long-wavelength (low-frequency) emission. Wien derived his...

lines are seen because again emission happens only at particular energies after excitation. An example is the emission spectrum of nebulae.[citation...

Ultra low emission vehicle V6: Vee-formation six-cylinder V8: V-formation eight-cylinder VDC: Variable displacement compressor ZEV: Zero-emission vehicle...

injection timing has to be precise to minimise unburnt fuel (and thus HC emissions). Because of this, continuously injecting systems such as the Bosch K-Jetronic...

uniform temperature, its emission has a characteristic frequency distribution that depends on the temperature. Its emission is called blackbody radiation...

means that no CO2 is produced, which eliminates the main greenhouse gas emission of a conventional petroleum engine. As pure hydrogen does not contain carbon...

Agency. Other states may choose to follow CARB or the federal vehicle emission standards but may not set their own. CARB's governing board is made up...

emissions. Emissions come from direct greenhouse gas emissions (for example from rice production and livestock farming). and from indirect emissions....