Harmonic vibrations result from the torsional motion imparted on the crankshaft. These harmonics are a function of many factors including frequencies created by the actual combustion and the natural frequencies the metals make under the stresses of combustion and flexing.
A MND is a ND that incorporates revisions and/or mitigation measures in the proposed project that will avoid or mitigate impacts to a point where clearly no significant impacts on the environment would occur.
A declaration under Rule 6(6) EPC is an explicit requirement to benefit from the fee reductions, even for applicants who obviously fulfil the criteria of Rule 6(4) EPC, such as natural persons or universities.