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The EGR system routes many of the exhaust gases (6 ? 10%) through the EGR valve, last on the Intake System, and in the end in the combustion chamber. The exhaust gases are inert i.e. they don't burn within the combustion chamber; also, the exhaust gases use up a number of the space which could preferably be taken with the intake air. This decreases the volume of intake air available for the combustion process during each Power Stroke; which experts claim decreases the peak combustion temperatures. This leads to lower NOx emissions. “We’re obviously delighted to be featured in Love Your Home and Garden. It’s very pleasing to be recognised as a leading provider of aluminium windows and doors – but it’s just as satisfying to be supporting good people going through hard times. Lighting takes center stage in fashion photography and a photography light meter will assist you in planning the lighting for a shot. Ideally, the light should enhance the elements of the design and the shot. It can be kept minimal to create silhouettes or mood, or bright to increase the contrast. Some pictures may require a fill light added when shooting into the sun, while others prefer the effect without. An outdoor shoot during an overcast day assists in creating a mood and allows the shadows to play across her skin which adds interest to the shot.