Many methods can be used to predict the secondary structure of an RNA molecule. One of the methods is the dynamic programming approach. However, the dynamic programming approach usually takes too much time. Thus, it is not very practical to solve the problem of long sequences with dynamic programming. RAGA (RNA Sequence Alignment by the Genetic Algorithm) is a genetic algorithm to align two sim...

The traditional base state with amendments model usually use the time sequence when choosing the base state to manipulate and it is usually use the extension of time point to represent the time-slot retrieval, which ignores the adjacent feature of the time point in a certain time-slot. The concept of operated base state and operation times is introduce in this paper, in which a base state with ...

To understand what a braid group is, it is easiest to visualize a braid. Consider n strands, all parallel. Consider taking the ith strand and crossing it over the i+ 1th strand. This is an example of a braid. In general, a braid is any sequence of crossings of the bands, provided none of the bands are selfcrossing. For instance, a loop, or a band which forms a loop in the middle, is not a braid...

In the change of the orientation one has to reverse the sequence (the operation introduced in [7]) and to change the second restriction one has to rotate the sequence (the operation introduced in [26]). The goal of the paper is to prove, mostly simple, facts about the relationship between properties and attributes of the finite sequence and its rotation (similar results about reversing had been...

To understand what a braid group is, it is easiest to visualize a braid. Consider n strands, all parallel. Consider taking the ith strand and crossing it over the very next strand. This is a braid. In fact, a braid is any sequence of crossings of the bands, provided none of the bands are self-crossing. For instance, a loop, or a band which forms a loop in the middle are not braids. Now, in orde...

In this study, we introduced a new memristive chaotic system with the rich dynamic behavior, and then proposed chaotic-based image encryption scheme which is based on permutation–confusion–substitution structure. our scheme, Hamming distance used to design plain-related initial condition, generated sequences are assigned permutation, diffusion, substitution stages. permutation stage, an effect ...

Optimization of process planning is considered as the key technology for computer-aided process planning which is a rather complex and difficult procedure. A good process plan of a part is built up based on two elements: (1) the optimized sequence of the operations of the part; and (2) the optimized selection of the machine, cutting tool and Tool Access Direction (TAD) for each operation. In th...