Internal coordinate passive

Coupling between active and passive internal coordinates... 

We shall use the term active to refer to the velocity internal coordinate because its value directly affects the spatial transport. Other internal coordinates (e.g. size, mass, etc.) are referred to as passive if they are simply advected in space by the free-transport term. However, if the advection velocity is modeled as a function of internal coordinates such as size, then such coordinates are also referred to as active. 

For simplicity, only the ID case is discussed here, and we denote the univariate NDF by n t, X, ), where is a passive internal coordinate. The PBE with only the advection term is... 

There are various types of classification of attacks. For example, division into passive and active, external and internal attacks, deliberate and unintentional. It should be mentioned that many models of attacks are currently well known one-to-one or one-to-many, i.e., attack proceeds from one point many-to-one and many-to-many, i.e., distributed or coordinated attacks hybrid attacks also named the blended threat [12]. 

Keeping in mind the above considerations, extensive analytical and experimental works are still needed as applied to new passive systems/components. The contents of these works and the relevant capabilities are discussed in Sections 3 and 4 of this report. The sharing of the relevant results obtained earlier and coordination of the further works on the international level would increase the value of their results and optimize the required manpower and financial resources. 

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