The construction of data center network by applying SDN technology has become a hot research topic. The SDN architecture has innovatively separated the control plane from the data plane which makes the network more software-oriented and agile. Moreover, it provides virtual multi-tenancy, effective scheduling resources and centralized control strategies to meet the demand for cloud computing dat...

A new type of compression mechanism named "Helical Compressor'' was presented at the Purdue Conference in 1992 and 1998 [Refs.1-2]. There they showed the design, performance of the prototype, theoretical analysis, and its potential. After that fundamental experiment and theoretical analysis have . clarified various phenomenon in the Helical Compressor. As a result, we can successfully achieve t...

Given two families X and Y of integral polytopes with nice combinatorial and algebraic properties, a natural way to generate new class of polytopes is to take the intersection P = P1 ∩ P2, where P1 ∈ X, P2 ∈ Y . Two basic questions then arise: 1) when P is integral and 2) whether P inherits the “old type” from P1,P2 or has a “new type”, that is, whether P is unimodularly equivalent to some poly...

W ELCOME to the first issue of the new year! As you have no doubt noticed, our transaction's name has changed—from IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS PART B: CYBERNETICS to a more concise IEEE TRANSACTIONS ON CYBERNETICS (TCyb). For the past many months, the publications of the IEEE Systems, Man, and Cybernetics Society (SMCS) have been undergoing a major reorganization. The reo...

T thrombocytopenic purpura (TTP) is a rapidly fatal illness, first described by Moschowitz in 1924 (1), that is characterized by anemia, a low platelet count (thrombocytopenia), and microvascular thrombosis. The anemia is caused by hemolysis and is associated with sharply pointed red cell fragments, termed schistocytes, that look as though they might have been sliced with a knife. The thrombocy...

Our notion of crystallography and how we communicate it needs to adapt to the major emerging frontiers of science in order to ensure that our community continues to thrive.